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95-532: In 1960, the Los Altos Town Crier organized the first Midnite Run as a way of "promoting the fitness, good health and enjoyment running offers" - as written in The Times Standard - to members of the community. Since then, the event is held annually on New Years Eve with on average 2,500 runners. In 1978, Los Altos Town Crier was involved heavily in reporting the death of a high school Sophomore at

190-472: A thunderstorm is blown through a mass of stationary, warm, moist air near the outflow boundary, resulting in a "rolling" effect (often exemplified through a roll cloud ). If low level wind shear is strong enough, the rotation can be turned vertically or diagonally and make contact with the ground. The result is a gustnado. They usually cause small areas of heavier rotational wind damage among areas of straight-line wind damage. A dust devil (also known as

285-517: A "rope tornado". When they rope out, the length of their funnel increases, which forces the winds within the funnel to weaken due to conservation of angular momentum . Multiple-vortex tornadoes can appear as a family of swirls circling a common center, or they may be completely obscured by condensation, dust, and debris, appearing to be a single funnel. In the United States, tornadoes are around 500 feet (150 m) across on average. However, there

380-822: A Speech and Debate team with Mountain View High School . The team was founded by Charles Dahan in 1999, with Dahan earning nine Tournament of Champions bids during his debate career. In 2008, Daniel Moerner, class of 2009, won the Walter Alan Ulrich Award for Top Speaker in Lincoln-Douglas Debate at the Tournament of Champions . In 2009, he also became the first debater to ever win the Stanford Invitational and Berkeley National Invitational back-to-back in their 20-year history. Los Altos High School

475-496: A T0 for extremely weak tornadoes to T11 for the most powerful known tornadoes. Doppler weather radar data, photogrammetry , and ground swirl patterns ( cycloidal marks) may also be analyzed to determine intensity and award a rating. Tornadoes vary in intensity regardless of shape, size, and location, though strong tornadoes are typically larger than weak tornadoes. The association with track length and duration also varies, although longer track tornadoes tend to be stronger. In

570-441: A block of dark clouds, wider than the distance from the cloud base to the ground. Even experienced storm observers may not be able to tell the difference between a low-hanging cloud and a wedge tornado from a distance. Many, but not all major tornadoes are wedges. Tornadoes in the dissipating stage can resemble narrow tubes or ropes, and often curl or twist into complex shapes. These tornadoes are said to be "roping out", or becoming

665-454: A body of water (as a waterspout), tornadoes can turn white or even blue. Slow-moving funnels, which ingest a considerable amount of debris and dirt, are usually darker, taking on the color of debris. Tornadoes in the Great Plains can turn red because of the reddish tint of the soil, and tornadoes in mountainous areas can travel over snow-covered ground, turning white. Lighting conditions are

760-571: A considerable amount of the "other" city in its attendance area. During the El Niño storms of 1998, a tornado ripped through the Theater area of the school. The tornado touched down at 5:05PM on May 4, 1998, near the intersection of El Monte Road and Almond Avenue. It was rated F1 on the Fujita Scale , and was one of two that touched down in the area. The tornado uprooted trees, picked up dumpsters, damaged

855-541: A continuous, deep rumbling, or an irregular sound of "noise". Since many tornadoes are audible only when very near, sound is not to be thought of as a reliable warning signal for a tornado. Tornadoes are also not the only source of such sounds in severe thunderstorms; any strong, damaging wind, a severe hail volley, or continuous thunder in a thunderstorm may produce a roaring sound. Tornadoes also produce identifiable inaudible infrasonic signatures. Unlike audible signatures, tornadic signatures have been isolated; due to

950-462: A few rotations per minute. Steam devils are very rare. They most often form from smoke issuing from a power plant's smokestack. Hot springs and deserts may also be suitable locations for a tighter, faster-rotating steam devil to form. The phenomenon can occur over water, when cold arctic air passes over relatively warm water. The Fujita scale , Enhanced Fujita scale (EF), and International Fujita scale rate tornadoes by damage caused. The EF scale

1045-435: A major factor in the appearance of a tornado. A tornado which is " back-lit " (viewed with the sun behind it) appears very dark. The same tornado, viewed with the sun at the observer's back, may appear gray or brilliant white. Tornadoes which occur near the time of sunset can be many different colors, appearing in hues of yellow, orange, and pink. Dust kicked up by the winds of the parent thunderstorm, heavy rain and hail, and

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1140-1012: A mesocyclone) waterspouts. Fair weather waterspouts are less severe but far more common, and are similar to dust devils and landspouts . They form at the bases of cumulus congestus clouds over tropical and subtropical waters. They have relatively weak winds, smooth laminar walls, and typically travel very slowly. They occur most commonly in the Florida Keys and in the northern Adriatic Sea . In contrast, tornadic waterspouts are stronger tornadoes over water. They form over water similarly to mesocyclonic tornadoes, or are stronger tornadoes which cross over water. Since they form from severe thunderstorms and can be far more intense, faster, and longer-lived than fair weather waterspouts, they are more dangerous. In official tornado statistics, waterspouts are generally not counted unless they affect land, though some European weather agencies count waterspouts and tornadoes together. A landspout , or dust-tube tornado ,

1235-729: A part of the Donnelly Newspaper joined three weekly newspapers owned by the Times Tribune . In 1993, it was reported by the Santa Cruz Sentinel that the Town Crier for years has carried accounts of a local resident's fight with the city and neighbors over his development plans for a 100-acre property. In the same year the newspaper was purchased by Select Communications. When the Peninsula Times Tribune ceased publication

1330-413: A probe measured a 100- millibar (100  hPa ; 3.0  inHg ) pressure decrease. The pressure dropped gradually as the vortex approached then dropped extremely rapidly to 850  mbar (850  hPa ; 25  inHg ) in the core of the violent tornado before rising rapidly as the vortex moved away, resulting in a V-shape pressure trace. Temperature tends to decrease and moisture content to increase in

1425-404: A recognizable life cycle which begins when increasing rainfall drags with it an area of quickly descending air known as the rear flank downdraft (RFD). This downdraft accelerates as it approaches the ground, and drags the supercell's rotating mesocyclone towards the ground with it. As the mesocyclone lowers below the cloud base, it begins to take in cool, moist air from the downdraft region of

1520-436: A small cloud of debris near the ground. Tornadoes may be obscured completely by rain or dust. These tornadoes are especially dangerous, as even experienced meteorologists might not see them. Small, relatively weak landspouts may be visible only as a small swirl of dust on the ground. Although the condensation funnel may not extend all the way to the ground, if associated surface winds are greater than 64 km/h (40 mph),

1615-617: A tornado impacts. A tornado may be much stronger than its damage-based rating indicates if its strongest winds occur away from suitable damage indicators, such as in an open field. Outside Tornado Alley , and North America in general, violent tornadoes are extremely rare. This is apparently mostly due to the lesser number of tornadoes overall, as research shows that tornado intensity distributions are fairly similar worldwide. A few significant tornadoes occur annually in Europe, Asia, southern Africa, and southeastern South America. The United States has

1710-707: A tornado touches the surface and returns to the baseline level when the tornado dissipates. In many cases, intense tornadoes and thunderstorms exhibit an increased and anomalous dominance of positive polarity CG discharges. Luminosity has been reported in the past and is probably due to misidentification of external light sources such as lightning, city lights, and power flashes from broken lines, as internal sources are now uncommonly reported and are not known to ever have been recorded. In addition to winds, tornadoes also exhibit changes in atmospheric variables such as temperature , moisture , and atmospheric pressure . For example, on June 24, 2003, near Manchester, South Dakota ,

1805-583: A tornado. Tornadoes normally rotate cyclonically (when viewed from above, this is counterclockwise in the northern hemisphere and clockwise in the southern ). While large-scale storms always rotate cyclonically due to the Coriolis effect , thunderstorms and tornadoes are so small that the direct influence of the Coriolis effect is negligible, as indicated by their large Rossby numbers . Supercells and tornadoes rotate cyclonically in numerical simulations even when

1900-762: A whirlwind) resembles a tornado in that it is a vertical swirling column of air. However, they form under clear skies and are no stronger than the weakest tornadoes. They form when a strong convective updraft is formed near the ground on a hot day. If there is enough low-level wind shear, the column of hot, rising air can develop a small cyclonic motion that can be seen near the ground. They are not considered tornadoes because they form during fair weather and are not associated with any clouds. However, they can, on occasion, result in major damage. Small-scale, tornado-like circulations can occur near any intense surface heat source. Those that occur near intense wildfires are called fire whirls . They are not considered tornadoes, except in

1995-468: A widely accepted theory for how most tornadoes form, live, and die, it does not explain the formation of smaller tornadoes, such as landspouts, long-lived tornadoes, or tornadoes with multiple vortices. These each have different mechanisms which influence their development—however, most tornadoes follow a pattern similar to this one. A multiple-vortex tornado is a type of tornado in which two or more columns of spinning air rotate about their own axes and at

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2090-401: Is homecoming , which includes a football game, a parade in downtown Los Altos , and the yearly nomination process of for the king and queen. Each year, seniors first nominate 20 peers within their own graduating class for the 2 positions. The 20 seniors then break up into groups of 3-4 and create a 2-3 minute video that is played for the entire school during the morning announcements. Finally,

2185-407: Is a tornado not associated with a mesocyclone. The name stems from their characterization as a "fair weather waterspout on land". Waterspouts and landspouts share many defining characteristics, including relative weakness, short lifespan, and a small, smooth condensation funnel that often does not reach the surface. Landspouts also create a distinctively laminar cloud of dust when they make contact with

2280-411: Is a wide range of tornado sizes. Weak tornadoes, or strong yet dissipating tornadoes, can be exceedingly narrow, sometimes only a few feet or couple meters across. One tornado was reported to have a damage path only 7 feet (2.1 m) long. On the other end of the spectrum, wedge tornadoes can have a damage path a mile (1.6 km) wide or more. A tornado that affected Hallam, Nebraska on May 22, 2004,

2375-418: Is also commonly referred to as a "twister" or the old-fashioned colloquial term cyclone . A tornado is a violently rotating column of air, in contact with the ground, either pendant from a cumuliform cloud or underneath a cumuliform cloud, and often (but not always) visible as a funnel cloud. For a vortex to be classified as a tornado, it must be in contact with both the ground and the cloud base. The term

2470-566: Is higher than the state average. In 2009, Michelle Bissonnette, who taught at Los Altos for 10 years, was selected as one of three "Teaching Ambassador Fellows" to work as a full-time employee of the United States Department of Education for one school year. The student-teacher ratios at Los Altos High School are considerably lower than the state average. Los Altos High School requires two years of Physical Education (PE) credits in order to graduate. 1 full year of P.E. in 9th grade

2565-578: Is known as the "newspaper where local legal notices are posted" as described in 2010 in the Honolulu Star-Advertiser . In 2019, three employees and Los Altos businessman Dennis Young bought the Town Crie r from longtime publishers Paul and Liz Nyberg. The new ownership team, LATC Media Inc, includes Co-Publishers Dennis Young and Howard Bischoff, Vice President of Operations Chris Redden and Vice President of Sales and Marketing Kathy Lera. In 2017,

2660-720: Is located at 201 Almond Avenue, close to Los Altos Downtown, San Antonio Shopping Center , and Almond Elementary School. Los Altos High School is one of the three Mountain View-Los Altos Union High School District public high schools; the other is Mountain View High School and Alta Vista High School . The main feeder schools are Egan Junior High School and Crittenden Middle School . The attendance area includes highly affluent sections of Los Altos , Los Altos Hills and Mountain View , and low-income housing sections of Mountain View. Tracey Runeare has acted as

2755-437: Is no break in activity, this is considered a tornado outbreak (although the term "tornado outbreak" has various definitions). A period of several successive days with tornado outbreaks in the same general area (spawned by multiple weather systems) is a tornado outbreak sequence, occasionally called an extended tornado outbreak. Most tornadoes take on the appearance of a narrow funnel , a few hundred meters (yards) across, with

2850-447: Is not precisely defined; for example, there is disagreement as to whether separate touchdowns of the same funnel constitute separate tornadoes. Tornado refers to the vortex of wind, not the condensation cloud. A tornado is not necessarily visible; however, the intense low pressure caused by the high wind speeds (as described by Bernoulli's principle ) and rapid rotation (due to cyclostrophic balance ) usually cause water vapor in

2945-650: Is ranked 56th in California. In 2006, City-data deemed Los Altos High School to be the 9th best High School in California , with an API of 797. However, Newsweek grades schools on weighted data and teacher:student ratios, while City-Data merely uses API as a standard. In 2008, the school's performance fell seven points in the API from the previous year, with a final score of 795. Asians lost their score slightly by five points and while students with disabilities lost 25 points from

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3040-569: Is required. After-school sports each provide one semester of credits. Its sports teams participate in the regional SCVAL League. The track and field team has made it to State championships numerous times, most notably winning 5 CIF-CCS Championship titles, and a CIF state championship title in 1970. The musical ensembles included are Auxiliary Units (also known as Color Guard ), Marching band , Jazz band , Chamber Ensemble, String Orchestra , Wind Ensemble , Symphonic Band , and Concert Band. Los Altos High School also includes Concert Choir and

3135-668: The Latin tonāre 'to thunder'). The metathesis of the r and o in the English spelling was influenced by the Spanish tornado (past participle of tornar 'to twist, turn,', from Latin tornō 'to turn'). The English word has been reborrowed into Spanish, referring to the same weather phenomenon. Tornadoes' opposite phenomena are the widespread, straight-line derechos ( / d ə ˈ r eɪ tʃ oʊ / , from Spanish : derecho Spanish pronunciation: [deˈɾetʃo] , 'straight'). A tornado

3230-530: The Los Altos High School . The newspaper reported the clothing and last known whereabouts of the victim. In 1986, The Citizen's Voice reported that the San Jose newspapers have a combined circulation of 85,000. The San Jose newspapers include Los Altos Town Crier , Campbell Press , Cupertino Courier and others. In 1988, Los Altos Town Crier , along with four other Santa Clara County weekly newspapers

3325-578: The Los Altos Town Crier faced closure, among two other weekly newspapers. Prior to this change, the paper was owned by Chicago based-Tribune Co., which also owned the daily Times Tribune . 1996, Los Altos Town Crier voted Charley Chinese Restaurant "Best" restaurant in Los Altos. For this title, the Chinese restaurant also had the support of KGO Radio and Palo Alto Times Tribune. Los Altos Town Crier

3420-529: The Los Altos Town Crier won 1st place in the Sports Feature Photo category in its division of California's Better Newspapers Contest. Los Altos High School (Los Altos, California) Los Altos High School, abbreviated as LAHS, is a WASC -accredited public senior high school located in Los Altos , California , United States, in the heart of Silicon Valley . Los Altos was opened in 1954 and

3515-459: The equator and are less common at high latitudes . Other tornado-like phenomena that exist in nature include the gustnado , dust devil , fire whirl , and steam devil . Tornadoes occur most frequently in North America (particularly in central and southeastern regions of the United States colloquially known as Tornado Alley ; the United States has by far the most tornadoes of any country in

3610-442: The school principal since 2023, and has been preceded by Wynne Satterwhite from 2005 to 2022 and George Perez until 2004. Los Altos High School was established in 1954 on the site of an orchard . Initially, Los Altos High School served the mostly white, middle to upper class populations of Los Altos and Los Altos Hills. During 1981 redistricting efforts, the district closed its oldest high school, Mountain View High School, which

3705-406: The "funnel cloud" term is strictly defined as a rotating cloud which is not associated with strong winds at the surface, and condensation funnel is a broad term for any rotating cloud below a cumuliform cloud. Tornadoes often begin as funnel clouds with no associated strong winds at the surface, and not all funnel clouds evolve into tornadoes. Most tornadoes produce strong winds at the surface while

3800-596: The AA and AAA categories however, following the pandemic the band competes in the A and AA categories. In 1997, the LAHS Marching Band received six awards at the state festival. In 2008, the band won its first sweepstakes award in four years, placing 7th out of 48 participating bands at Western Band's state preliminaries. In 2011-2012, the Band's show, "Forbidden", won numerous awards at local competitions, finished 6th statewide at

3895-508: The Alliance petitioned the Los Altos city council to proclaim a Gay Pride Parade in the city's downtown, which resulted in the passage of language which specifically prohibited religious, racial, ethnic or sexual discrimination-related proclamations. The group, along with the support of San Francisco Mayor Gavin Newsom and then-Supervisor Tom Ammiano , then petitioned the city council to reverse

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3990-562: The City Council. This helped create the grassroots for a Los Altos "Cool Cities" campaign to aide the city in becoming more Green ; resulting in the city to be included in the Kyoto Protocol through the Mayor's Climate Protection Center. They have also invited an Emmy Award -winning Al Gore -trained speaker to deliver an "update" on An Inconvenient Truth as well as provide tips on making

4085-422: The Coriolis effect is neglected. Low-level mesocyclones and tornadoes owe their rotation to complex processes within the supercell and ambient environment. Approximately 1 percent of tornadoes rotate in an anticyclonic direction in the northern hemisphere. Typically, systems as weak as landspouts and gustnadoes can rotate anticyclonically, and usually only those which form on the anticyclonic shear side of

4180-613: The NSPA's Best in Show award for publication websites. In 2011, The Talon's website qualified for the Pacemaker online finalists. Tornado A tornado is a violently rotating column of air that is in contact with both the surface of the Earth and a cumulonimbus cloud or, in rare cases, the base of a cumulus cloud . It is often referred to as a twister , whirlwind or cyclone , although

4275-560: The RFD also reaches the ground, fanning outward and creating a gust front that can cause severe damage a considerable distance from the tornado. Usually, the funnel cloud begins causing damage on the ground (becoming a tornado) within a few minutes of the RFD reaching the ground. Many other aspects of tornado formation (such as why some storms form tornadoes while others do not, or what precise role downdrafts, temperature, and moisture play in tornado formation) are still poorly understood. Initially,

4370-405: The RFD, now an area of cool surface winds, begins to wrap around the tornado, cutting off the inflow of warm air which previously fed the tornado. The flow inside the funnel of the tornado is downward, supplying water vapor from the cloud above. This is contrary to the upward flow inside hurricanes, supplying water vapor from the warm ocean below. Therefore, the energy of the tornado is supplied from

4465-529: The UK (around 33, 0.00013/km , 0.00034/sq mi per year), although those are of lower intensity, briefer and cause minor damage. Tornadoes kill an average of 179 people per year in Bangladesh, the most in the world. Reasons for this include the region's high population density, poor construction quality, and lack of tornado safety knowledge. Other areas of the world that have frequent tornadoes include South Africa,

4560-749: The WBA State Championships in Thousand Oaks, CA, and captured the State's AAA High Music caption award for the first time in school history In that same year, the band won a total of fifteen trophies and were undefeated in music throughout the entire season. The band's 2012 AA show was entitled "Senses" and their 2013 AAA show "REM." The 2014 AAA show was entitled "House of Cards" and won 1st place at all of Gilroy High School, Dublin Irish Guard Invitational and Quest Classic competitions. In 2014, for

4655-501: The air to condense into cloud droplets due to adiabatic cooling . This results in the formation of a visible funnel cloud or condensation funnel. There is some disagreement over the definition of a funnel cloud and a condensation funnel. According to the Glossary of Meteorology , a funnel cloud is any rotating cloud pendant from a cumulus or cumulonimbus, and thus most tornadoes are included under this definition. Among many meteorologists,

4750-457: The audible sound depends on atmospheric conditions and topography. The winds of the tornado vortex and of constituent turbulent eddies , as well as airflow interaction with the surface and debris, contribute to the sounds. Funnel clouds also produce sounds. Funnel clouds and small tornadoes are reported as whistling, whining, humming, or the buzzing of innumerable bees or electricity, or more or less harmonic, whereas many tornadoes are reported as

4845-457: The base of a cumulonimbus cloud, with a cloud of rotating debris and dust beneath it. Most tornadoes have wind speeds less than 180 kilometers per hour (110 miles per hour), are about 80 meters (250 feet) across, and travel several kilometers (a few miles) before dissipating. The most extreme tornadoes can attain wind speeds of more than 480 kilometers per hour (300 mph), can be more than 3 kilometers (2 mi) in diameter, and can stay on

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4940-537: The case of the Tri-State Tornado. A 2007 reanalysis of the path suggests that the tornado may have begun 15 miles (24 km) further west than previously thought. Tornadoes can have a wide range of colors, depending on the environment in which they form. Those that form in dry environments can be nearly invisible, marked only by swirling debris at the base of the funnel. Condensation funnels that pick up little or no debris can be gray to white. While traveling over

5035-544: The case of violent tornadoes, only a small portion of the path is of violent intensity, most of the higher intensity from subvortices . In the United States, 80% of tornadoes are EF0 and EF1 (T0 through T3) tornadoes. The rate of occurrence drops off quickly with increasing strength—less than 1% are violent tornadoes (EF4, T8 or stronger). Current records may significantly underestimate the frequency of strong (EF2-EF3) and violent (EF4-EF5) tornadoes, as damage-based intensity estimates are limited to structures and vegetation that

5130-493: The circulation is considered a tornado. A tornado with a nearly cylindrical profile and relatively low height is sometimes referred to as a "stovepipe" tornado. Large tornadoes which appear at least as wide as their cloud-to-ground height can look like large wedges stuck into the ground, and so are known as "wedge tornadoes" or "wedges". The "stovepipe" classification is also used for this type of tornado if it otherwise fits that profile. A wedge can be so wide that it appears to be

5225-418: The cloud above. As the RFD completely wraps around and chokes off the tornado's air supply, the vortex begins to weaken, becoming thin and rope-like. This is the "dissipating stage", often lasting no more than a few minutes, after which the tornado ends. During this stage, the shape of the tornado becomes highly influenced by the winds of the parent storm, and can be blown into fantastic patterns. Even though

5320-517: The combined class championships. The band's 2016 AAA show was entitled "Deja Vu" and their 2017 AA show "Vertigo." The band's 2018 AA show was entitled "Mirage". The band's AA show from 2019 was entitled "Les Plumes". In 2019, the band came in 4th place in the AA category at the Western Band Association 1A-2A-3A Class Championships, earning a spot to compete in the 1A-2A-3A Combined Grand Championships. The band went on to place 18th overall in

5415-458: The combined class championships. There was no show in 2020. The band's 2021 A show was entitled "Masquerade" and their 2022 A show "Dreamscape." The bands 2023 AA show was entitled "All the World's a Stage." Los Altos High School's ASB (Associated Student Body) and the 4 class council's organize several events throughout the school year including rallies and dances. A notable event of each school year

5510-428: The darkness of night are all factors that can reduce the visibility of tornadoes. Tornadoes occurring in these conditions are especially dangerous, since only weather radar observations, or possibly the sound of an approaching tornado, serve as any warning to those in the storm's path. Most significant tornadoes form under the storm's updraft base , which is rain-free, making them visible. Also, most tornadoes occur in

5605-414: The descending rear flank downdraft (RFD) in a cyclonic supercell. On rare occasions, anticyclonic tornadoes form in association with the mesoanticyclone of an anticyclonic supercell, in the same manner as the typical cyclonic tornado, or as a companion tornado either as a satellite tornado or associated with anticyclonic eddies within a supercell. Tornadoes emit widely on the acoustics spectrum and

5700-524: The efforts of storm spotters . There are several scales for rating the strength of tornadoes. The Fujita scale rates tornadoes by damage caused and has been replaced in some countries by the updated Enhanced Fujita Scale . An F0 or EF0 tornado, the weakest category, damages trees, but not substantial structures. An F5 or EF5 tornado, the strongest category, rips buildings off their foundations and can deform large skyscrapers . The similar TORRO scale ranges from T0 for extremely weak tornadoes to T11 for

5795-755: The entire school votes for their top 2 and the result is revealed during the halftime show of the homecoming football game with the crowning of the king and queen. Students at Los Altos High School have independently started over 50 different clubs, including One Dollar For Life , a non-profit organization founded by history and economics teacher Robert Freeman. It also hosts club extensions of many nationally recognized organizations, such as American Civil Liberties Union , Amnesty International , AVID Council , Club Darfur , Future Business Leaders of America , Gay-Straight Alliance , Key Club , Model United Nations , Safe Ride , and Mock Trial . They also have "student unions" of most ethnic and racial groups present in

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5890-401: The first mesocyclone and associated tornado dissipate, the storm's inflow may be concentrated into a new area closer to the center of the storm and possibly feed a new mesocyclone. If a new mesocyclone develops, the cycle may start again, producing one or more new tornadoes. Occasionally, the old (occluded) mesocyclone and the new mesocyclone produce a tornado at the same time. Although this is

5985-505: The first time, the LAHS Marching Band competed in Bands of America regional championships, placing 3rd place in the AAA category. The band's AA show from 2015 was entitled "Muse". In 2015, the band came in 3rd place in the AA category at the Western Band Association 1A-2A-3A Class Championships, earning a spot to compete in the 1A-2A-3A Combined Grand Championships. The band went on to place 8th overall in

6080-528: The ground for more than 100 km (62 mi). Various types of tornadoes include the multiple-vortex tornado , landspout , and waterspout . Waterspouts are characterized by a spiraling funnel-shaped wind current, connecting to a large cumulus or cumulonimbus cloud. They are generally classified as non- supercellular tornadoes that develop over bodies of water, but there is disagreement over whether to classify them as true tornadoes. These spiraling columns of air frequently develop in tropical areas close to

6175-479: The ground, due to their differing mechanics from true mesoform tornadoes. Though usually weaker than classic tornadoes, they can produce strong winds which could cause serious damage. A gustnado , or gust front tornado , is a small, vertical swirl associated with a gust front or downburst . Because they are not connected with a cloud base, there is some debate as to whether or not gustnadoes are tornadoes. They are formed when fast-moving cold, dry outflow air from

6270-583: The immediate vicinity of a tornado. Tornadoes often develop from a class of thunderstorms known as supercells. Supercells contain mesocyclones , an area of organized rotation a few kilometers/miles up in the atmosphere, usually 1.6–9.7 km (1–6 miles) across. Most intense tornadoes (EF3 to EF5 on the Enhanced Fujita Scale ) develop from supercells. In addition to tornadoes, very heavy rain, frequent lightning, strong wind gusts, and hail are common in such storms. Most tornadoes from supercells follow

6365-519: The interior of British Columbia , and western New Brunswick are also tornado-prone. Tornadoes also occur across northeastern Mexico. The United States averages about 1,200 tornadoes per year, followed by Canada, averaging 62 reported per year. NOAA's has a higher average 100 per year in Canada. The Netherlands has the highest average number of recorded tornadoes per area of any country (more than 20, or 0.00048/km , 0.0012/sq mi annually), followed by

6460-402: The late afternoon, when the bright sun can penetrate even the thickest clouds. There is mounting evidence, including Doppler on Wheels mobile radar images and eyewitness accounts, that most tornadoes have a clear, calm center with extremely low pressure, akin to the eye of tropical cyclones . Lightning is said to be the source of illumination for those who claim to have seen the interior of

6555-473: The law, a move which was unanimously approved in 2006. They then organized a Gay Pride parade in downtown Los Altos , with over 300 in attendance. Due to this event, the County of Santa Clara and multiple local cities declared a gay pride day in honor of the club. In addition, the school sponsors a Day of Silence event annually to combat discrimination against LGBT students. Los Altos High School shares

6650-718: The long-distance propagation of low-frequency sound, efforts are ongoing to develop tornado prediction and detection devices with additional value in understanding tornado morphology, dynamics, and creation. Tornadoes also produce a detectable seismic signature, and research continues on isolating it and understanding the process. Tornadoes emit on the electromagnetic spectrum , with sferics and E-field effects detected. There are observed correlations between tornadoes and patterns of lightning. Tornadic storms do not contain more lightning than other storms and some tornadic cells never produce lightning at all. More often than not, overall cloud-to-ground (CG) lightning activity decreases as

6745-538: The most powerful known tornadoes. The International Fujita scale is also used to rate the intensity of tornadoes and other wind events based on the severity of the damage they cause. Doppler radar data, photogrammetry , and ground swirl patterns ( trochoidal marks) may also be analyzed to determine intensity and assign a rating. The word tornado comes from the Spanish tronada (meaning 'thunderstorm', past participle of tronar 'to thunder', itself in turn from

6840-405: The most tornadoes of any country, nearly four times more than estimated in all of Europe, excluding waterspouts. This is mostly due to the unique geography of the continent. North America is a large continent that extends from the tropics north into arctic areas, and has no major east–west mountain range to block air flow between these two areas. In the middle latitudes , where most tornadoes of

6935-552: The previous year, while Hispanics and the economically disadvantaged scored higher than the previous year. However, they passed the Federal "Adequate Yearly Progress" standards. 2009 saw an increase of 30 points in the API for the school, with a 34-point increase for Latino students and 64 for English-Language learners. 825 points is the highest in school history. API scores for the student body overall have climbed steadily each year from 799 in 2008 to 875 in 2011. Beginning in 2016,

7030-406: The rare case where they connect to a pyrocumulus or other cumuliform cloud above. Fire whirls usually are not as strong as tornadoes associated with thunderstorms. They can, however, produce significant damage. A steam devil is a rotating updraft between 50-and-200-metre wide (160 and 660 ft) that involves steam or smoke. These formations do not involve high wind speeds, only completing

7125-494: The record-holding tornado for path length—the Tri-State Tornado , which affected parts of Missouri , Illinois , and Indiana on March 18, 1925—was on the ground continuously for 219 miles (352 km). Many tornadoes which appear to have path lengths of 100 miles (160 km) or longer are composed of a family of tornadoes which have formed in quick succession; however, there is no substantial evidence that this occurred in

7220-520: The same mesocyclone. The satellite tornado may appear to " orbit " the larger tornado (hence the name), giving the appearance of one, large multi-vortex tornado. However, a satellite tornado is a distinct circulation, and is much smaller than the main funnel. A waterspout is defined by the National Weather Service as a tornado over water. However, researchers typically distinguish "fair weather" waterspouts from tornadic (i.e. associated with

7315-400: The same time revolve around a common center. A multi-vortex structure can occur in almost any circulation, but is very often observed in intense tornadoes. These vortices often create small areas of heavier damage along the main tornado path. This is a phenomenon that is distinct from a satellite tornado , which is a smaller tornado that forms very near a large, strong tornado contained within

7410-413: The school. For example, The BSU (British Student Union) at Los Altos High School celebrates British culture. These clubs impact the entire Los Altos community, and in the case of One Dollar For Life and Amnesty International, they impact regions in rural Africa and Haiti, respectively. The Los Altos Green Team, with the help of Sierra Club officials, urged citizens to sign petitions and presented them to

7505-417: The sounds are caused by multiple mechanisms. Various sounds of tornadoes have been reported, mostly related to familiar sounds for the witness and generally some variation of a whooshing roar. Popularly reported sounds include a freight train, rushing rapids or waterfall, a nearby jet engine, or combinations of these. Many tornadoes are not audible from much distance; the nature of and the propagation distance of

7600-460: The southerly flow to its east. This unique topography allows for frequent collisions of warm and cold air, the conditions that breed strong, long-lived storms throughout the year. A large portion of these tornadoes form in an area of the central United States known as Tornado Alley . This area extends into Canada, particularly Ontario and the Prairie Provinces , although southeast Quebec ,

7695-550: The state of California switched to a new Common Core based testing through the CAASPP (California Assessment of Student Performance and Progress). Students in the 11th grade who took this test in 2016 averaged in the 85.33rd percentile in ELA, and 96.27th percentile in Mathematics . The California Department of Education claims that in 2008-2009, 98% of teachers were fully credentialed—this

7790-409: The storm. The convergence of warm air in the updraft and cool air causes a rotating wall cloud to form. The RFD also focuses the mesocyclone's base, causing it to draw air from a smaller and smaller area on the ground. As the updraft intensifies, it creates an area of low pressure at the surface. This pulls the focused mesocyclone down, in the form of a visible condensation funnel. As the funnel descends,

7885-406: The student's lives more environmentally friendly. They have since started a local sustainable and organic garden and plan to sell subscriptions to local residents. In addition, class of 2008 and previous president of the school's Gay-Straight Alliance, received an award for his efforts in promoting gay rights at a local level; while joining San Jose city's annual gay-pride parade. In 2004,

7980-437: The tennis court fences, and destroyed the baseball diamond dugout. Damages were estimated at $ 25,000. As of the 2003-2004 school year, the enrollment was approximately 1600 students; in the last few years, each incoming class has been significantly larger than the outgoing class. Los Altos High School is a gold-certified high school and ranked 421st nationally in 2019 by U.S. News & World Report . Los Altos High School

8075-421: The tornado has a good source of warm, moist air flowing inward to power it, and it grows until it reaches the "mature stage". This can last from a few minutes to more than an hour, and during that time a tornado often causes the most damage, and in rare cases can be more than 1.6 km (1 mile) across. The low pressured atmosphere at the base of the tornado is essential to the endurance of the system. Meanwhile,

8170-427: The tornado is dissipating, it is still capable of causing damage. The storm is contracting into a rope-like tube and, due to conservation of angular momentum , winds can increase at this point. As the tornado enters the dissipating stage, its associated mesocyclone often weakens as well, as the rear flank downdraft cuts off the inflow powering it. Sometimes, in intense supercells, tornadoes can develop cyclically . As

8265-434: The visible funnel is still above the ground, so it is difficult to discern the difference between a funnel cloud and a tornado from a distance. Occasionally, a single storm will produce more than one tornado, either simultaneously or in succession. Multiple tornadoes produced by the same storm cell are referred to as a "tornado family". Several tornadoes are sometimes spawned from the same large-scale storm system. If there

8360-575: The word cyclone is used in meteorology to name a weather system with a low-pressure area in the center around which, from an observer looking down toward the surface of the Earth, winds blow counterclockwise in the Northern Hemisphere and clockwise in the Southern. Tornadoes come in many shapes and sizes, and they are often (but not always) visible in the form of a condensation funnel originating from

8455-581: The world occur, the Rocky Mountains block moisture and buckle the atmospheric flow , forcing drier air at mid-levels of the troposphere due to downsloped winds, and causing the formation of a low pressure area downwind to the east of the mountains. Increased westerly flow off the Rockies force the formation of a dry line when the flow aloft is strong, while the Gulf of Mexico fuels abundant low-level moisture in

8550-624: The world). Tornadoes also occur in South Africa , much of Europe (except most of the Alps), western and eastern Australia, New Zealand, Bangladesh and adjacent eastern India, Japan, the Philippines, and southeastern South America (Uruguay and Argentina). Tornadoes can be detected before or as they occur through the use of pulse-Doppler radar by recognizing patterns in velocity and reflectivity data, such as hook echoes or debris balls , as well as through

8645-552: The world-renowned Main Street Singers . The school also hosts a Drama department, the advanced course of which is called Broken Box Theatre Company and performs in the school's Eagle Theater. The school's vocal ensemble, known as the "Main Street Singers" performs internationally. The High School's Marching band is part of the Western Band Association , which is based in California . The Band competed in

8740-580: Was an update to the older Fujita scale, by expert elicitation , using engineered wind estimates and better damage descriptions. The EF scale was designed so that a tornado rated on the Fujita scale would receive the same numerical rating, and was implemented starting in the United States in 2007. An EF0 tornado will probably damage trees but not substantial structures, whereas an EF5 tornado can rip buildings off their foundations leaving them bare and even deform large skyscrapers . The similar TORRO scale ranges from

8835-795: Was constructed in 1954 on the site of an orchard . The Talon is the school's student-run newspaper which has been nationally recognized by the Journalism Education Association and the National Scholastic Press Association . In 1997, it was honored as one of the NSPA's newspaper pacemakers. In 2009, it placed 10th for the NSPA's national Best in Show award in the Newspaper 17+ pages category. They also won several awards for Features writing, Entertainment Review writing, Photography, and Editorial Cartooning. In 2010, The Talon's website, www.lahstalon.org , placed 8th for

8930-467: Was located on Castro Street in downtown Mountain View. Awalt High School was then renamed Mountain View High School, while Los Altos High School replaced its Knight mascot with the Eagle mascot from the old Mountain View High School. The district reaches from Los Altos through Mountain View to San Francisco Bay in the north. Both schools are located near the city border of Los Altos and Mountain View, and each has

9025-488: Was up to 2.5 miles (4.0 km) wide at the ground, and a tornado in El Reno, Oklahoma on May 31, 2013, was approximately 2.6 miles (4.2 km) wide, the widest on record. In the United States, the average tornado travels on the ground for 5 miles (8.0 km). However, tornadoes are capable of both much shorter and much longer damage paths: one tornado was reported to have a damage path only 7 feet (2.1 m) long, while

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