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55-656: The LSRCA is responsible for the waters, wildlife, and plants within the Lake Simcoe watershed , and has expanded and upgraded its reach and conservation areas several times in the past, gradually assuming control of the Lake Simcoe Watershed in neighbouring regions, such as York RM , Durham RM , Simcoe County , and the City of Kawartha Lakes . The LSRCA was established in 1951 by the Department of Planning and Development as

110-669: A dramatic decline in some fish species, along with an increase in algae blooms and aquatic weed growth. Phosphorus emissions from both urban and rural sources have upset the lake's ecosystem and fostered excessive aquatic plant growth, raising water temperatures, and decreasing oxygen levels, thereby rendering limited breeding grounds inhospitable. Lake Simcoe has been victim to zebra mussel , purple loosestrife , black crappie , spiny water flea , round goby , rusty crayfish and Eurasian milfoil invasions. The zebra mussel, which arrived in North American waters in 1985, originated in

165-714: A location may receive warnings from more than one service. In the Philippines , the Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA) branch of the Department of Science and Technology (DOST) issues general flood advisory (for non-telemetered river basins whenever there is a significant amount of rainfall recorded). Non-Telemetered: Monitor for possible flooding area Non-Telemeterd: Light to Moderate Rainfall Non-Telemetered: Alert for possible flash floods and landslides Non-Telemeterd: Moderate to Heavy Rainfall Non-Telemetered: Flood

220-555: A map he created in 1695. The name 'Toronto' found its way to the current city through its use in the name for the Toronto Carrying-Place Trail (or Toronto Passage), a portage running between Lake Ontario and Georgian Bay , that passed through Lake Toronto, which in turn was used as the name for an early French fort located at the foot of the Toronto Passage, on Lake Ontario. The Severn River , its outlet stream,

275-462: A river. When rapid flooding from heavy rain or a dam failure is expected, flash flood watches and warnings are issued. In the U.S. and Canada , dissemination of flood warnings is covered by Specific Area Message Encoding (SAME) code FLW, which is used by the U.S. Emergency Alert System and NOAA Weather Radio network and in Canada's Weatheradio Canada network. "Flood statements" are issued by

330-545: Is a remnant of a much bigger, prehistoric lake known as Lake Algonquin . This lake's basin also included Lake Huron , Lake Michigan , Lake Superior , Lake Nipigon , and Lake Nipissing . The melting of an ice dam at the close of the last ice age greatly reduced water levels in the region, leaving the lakes of today. The lake is located on Paleozoic limestone of the Ordovician period. However, due to deep deposits of glacial sediments, this bedrock only appears exposed along

385-521: Is also well known for its scuba diving. The ship J. C. Morrison sank in 1857 and is a great dive site off Centennial Beach. There are also a number of other popular scuba diving entrance points popular among fresh water divers. Kempenfelt Bay is the most popular for scuba divers as it is the deepest. Visibility ranges from over 30 feet to almost zero. Ontario Provincial Police , South Simcoe Police Service , York Regional Police , Durham Regional Police , and Barrie Police have marine units that patrol on

440-577: Is located on Kempenfelt Bay , and Orillia is located at the entrance to Lake Couchiching . The watershed draining into the lake contains a population of roughly half a million people, including the northern portion of the Greater Toronto Area (GTA). The town of Georgina lies along the entire south shore of Lake Simcoe and consists of smaller residential towns and communities, including Keswick on Cook's Bay , Sutton , Jackson's Point , Pefferlaw , and Udora . The town of Innisfil occupies

495-637: Is occurring immediate action is recommended Non-Telemeterd: Heavy to Intense Rainfall Non-Telemetered: Flood is persisting force evacuation is recommended Non-Telemeterd: Intense to Torrential Rainfall Non-Telemetered: Light rains Arrangements for flood warnings vary across the United Kingdom with several agencies leading on warnings for emergency responders and the public. The Environment Agency , Natural Resources Wales and Scottish Environment Protection Agency all undertake location specific flood warning activities for communities at risk depending upon

550-399: Is still an attraction; however, there are also a number of poker runs, jet-skiing, and other boating events. The lake is surrounded with summer cottages leading to heavy recreational and boating use in summer. There are a number of beaches which attract visitors from the greater Toronto area, as Lake Simcoe has a reputation for cleaner and warmer water than nearby Lake Ontario beaches. Many of

605-567: Is the task of making use of these forecasts to make decisions about whether warnings of floods should be issued to the general public or whether previous warnings should be rescinded or retracted. The task of providing warning for floods is divided into two parts: The decisions made by someone responsible for initiating flood warnings must be influenced by a number of factors, which include: A computer system for flood warning will usually contain sub-systems for: The type of flood warning service available varies greatly from country to country, and

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660-609: Is within Durham Region , where as Strawberry Island and Helmers Island are privately owned but within the boundaries of Ramara in Simcoe County . Grape is within Orillia and Goffatt is within Ramara with both owned privately by residents. The lake is about 30 kilometres (19 mi) long, 25 kilometres (16 mi) wide and 722 square kilometres (279 sq mi) in area. Lake Simcoe

715-511: The Black Sea and Caspian Sea area and is thought to have been brought to North America in the ballast of foreign freighters. Zebra mussels are particularly harmful to Lake Simcoe because they increase the clarity of the water allowing sunlight to penetrate to the bottom of the lake, where more algae and aquatic weeds can grow, accelerating the eutrophication process. The Rainbow Smelt are another introduced species and they were first observed in

770-576: The Chippewas of Georgina Island First Nation . The lake is dotted with several smaller islands, including Thorah Island (a cottage destination), Strawberry Island , Snake Island, Helmers Island and Fox Island. Pope John Paul II stayed on Strawberry Island for four days just before World Youth Day 2002 in Toronto. Before the completion of the Trent Severn Waterway , the water level on Lake Simcoe

825-659: The Kawartha lakes system and Lake Ontario. From its connection to Lake Couchiching, the Severn River is the only drainage from the lake to Georgian Bay, part of Lake Huron (Simcoe itself is not one of the Great Lakes ). The canal locks of the Trent-Severn Waterway make this connection navigable . A number of creeks and rivers flow into the lake: The lake has little commercial activity, but sees many recreational uses. In

880-564: The National Weather Service to inform the public of flooding along major streams in which there is not a serious threat to life or property. They may also follow a flood warning to give later information. The following is an example of a "Flood Warning." The Sabine River is used as an example: Source: Source: The Iowa Flood Center at the University of Iowa operates the largest real-time flood monitoring system of its kind in

935-569: The Upper Holland Valley Conservation Authority . It was founded by the municipalities of East Gwillimbury , Township of King , Aurora , Newmarket , and Whitchurch . In 1954, Hurricane Hazel destroys parts of the Greater Toronto Area . The LSCRA learned from this, and now (like all other conservation authorities) issues Flood alerts , Flood warnings , and Flood bulletins to the Lake Simcoe watershed population,

990-729: The York and Durham Regions , and Simcoe County in 1996. The following year, the LSRCA establishes a new collaborative partnership with the Federal Government's Department of Fisheries and Oceans to protect and enhance Lake Simcoe and its fish habitats. 1999 sees the Conservation Authority start "A Natural Partnership" With York Regional Municipality to protect what is natural and restore damaged and degraded areas in York Region. In 2001,

1045-610: The millennium , basking in the international spotlight, and solidifying partnerships that will help save Lake Simcoe. The Conservation Authority continued to grow in the 1990s, acquiring land in the Beaver River Wetlands, expanding Willow Beach, and adding Pangman Springs and Mabel Davis Conservation Areas. The LSRCA also increased the size of the Baldwin and Tyrwhitt properties as well as the Zephyr Wetlands. In 1990, Phase I of

1100-401: The 1960s including: The Conservation Authority also distributes over 5000 copies of their own comic book, named " Dennis The Menace And Dirt", which emphasizes on soil productivity, the importance of soil conservation, and how farming depends on fertile soils. HVCA releases two separate reports in 1961 ("Conservation Report on Land and Forest"), and in 1966 ("Report on Water"). In both reports,

1155-592: The 20-acre (81,000 m) Anchor Park in Holland Landing, Ontario . When the 1960s came, the UHVCA's boundaries expanded to include the entire Holland River and Schomberg River subwatersheds. This added the communities of Bradford , West Gwillimbury, Ontario (which will eventually merge into Bradford-West Gwillimbury ), and New Tecumseth, Ontario . The Holland Valley Conservation Authority secured close to 900 acres (3.6 km) of environmentally significant lands in

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1210-547: The Authority identifies special needs and goals that need to be met, such as improving management of light soils on the Oak Ridges Moraine , encouraging private reforestation, pass regulations that prohibit construction and dumping in flood plains, and the need to fight streambank erosion . An Emergency Flood Fund was established in 1967, and Centennial tree planting swept across the entire watershed, including reforesting

1265-576: The Environment Agency's website, showing which locations have flood warnings in place and the severity of these warnings. There is currently no flood warning system in Northern Ireland, but the Met Office does issue weather warnings. Flood risk management is the responsibility of Rivers Agency in Northern Ireland. Consideration will be given to the introduction of a warning system as part of

1320-575: The Environment, and the Ministry of Agriculture, Food and Rural Affairs. The Conservation Authority added a number of properties to its natural heritage network in the 1980s including: In 1981, the provincial Ministry of the Environment initiated a new study to identify and measure sources of phosphorus entering Lake Simcoe, and to recommend actions needed to reduce these inputs. In 1985, LSEMS identified phosphorus inputs from both urban and rural sources as

1375-631: The Holland River in Cook's Bay. This plant's purpose is to support intensification of development in the Lake Simcoe watershed. A number of southern Ontario rivers flow, generally north, into the lake, draining 2,581 km (997 sq mi) of land. From the east, the Talbot River , part of the Trent–Severn Waterway , is the most important river draining into Lake Simcoe, connecting the lake with

1430-403: The LSRCA began to deliver its programs and services to parts of York and Durham Regions , the City of Kawartha Lakes , and Simcoe County . Lake Simcoe Lake Simcoe is a lake in southern Ontario , Canada, the fourth-largest lake wholly in the province, after Lake Nipigon , Lac Seul , and Lake Nipissing . At the time of the first European contact in the 17th century, the lake

1485-467: The Lake , are using the $ 250,000 they raised from the sale of a nude picture calendar to rally government, business, the school system, and the local citizenry to rescue the lake. Several towns and communities on the lakeshore depend on Lake Simcoe for their drinking water. The Region of York is currently finalizing plans for a sewage treatment plant to be constructed on the shores of Lake Simcoe to be located on

1540-901: The Lake Simcoe Environmental Management Strategy (LSEMS) is launched. The Landowner Environmental Assistance Program (LEAP) of the LSEMS provides the technical and financial support landowners need to complete projects to improve local water quality. The outcome is that 16.5 tonnes of phosphorus would be diverted from Lake Simcoe by the year 2000. The plan would also control and reduce cropland and area erosion, install and upgrade manure storage facilities, restrict livestock access to public water courses (such as creeks and rivers), and reforest concerned areas. LEAP provides technical and financial support for private landowners to: naturalize riverbanks and streambanks , reforest priority lands, and control streambank erosion. Two years later,

1595-685: The Oak Ridges Moraine. 1976 saw the first annual Conservation Authority-sponsored maple syrup festival at the Sheppard's Bush Conservation Area in Aurora. The festival ("Maplefest") continues to this day, and the festival celebrating the Canadian tradition is an enduring success. The Lake Simcoe Environmental Management Strategy (LSEMS) is developed, in co-operation with the Ministries of Natural Resources,

1650-523: The Scanlon Creek Conservation Area. In 1970, the Conservation Authority planned to plant 3 million trees by the year 2001. In this year, the municipalities of Scott, Ontario , and Georgina, Ontario , joined the Conservation Authority. The name of the authority changed to South Lake Simcoe Conservation Authority in 1971. In 1974, the town of Innisfil joined. The organization established a watershed-wide natural heritage network by creating

1705-537: The basin. Isostatic rebound from the retreat of the last glaciers results in a steady rise of Lake Simcoe, particularly at its south end, and is further responsible for the deep organic sediments that have accumulated in its one-time shallow southern arm, known as the Holland Marsh. Here, organic deposits created by vegetation have largely kept pace with the steady rise in water level, and today supports extensive market gardening. All rivers, and most streams, flowing into

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1760-485: The beaches are used for kite surfing as well. Willow Beach in Georgina on the south shore is one of the largest and most popular public beaches on Lake Simcoe. There are seven yacht clubs (sailing) around the lake, which host a number of regattas, and an active sailing community exists on the lake. The lake also forms part of the Trent–Severn Waterway system that links Lake Ontario and Georgian Bay/Lake Huron. Lake Simcoe

1815-463: The conservation authority's "Save Our Simcoe" project sweeps across the area. Local youth participate in the "Yellow Fish Road" program to promote the responsible disposal of household hazardous waters, and 1,500 people hear how they can help save Lake Simcoe. The conservation authority also publishes and releases the book "An Action Guide To Improving the Waters of Lake Simcoe". The LSEMS expands to include

1870-593: The early 1960s. They were believed to compete with native Lake Whitefish and be somewhat responsible for a decline in their populations. Several initiatives, such as the Lake Simcoe Environmental Management Strategy (LSEMS), the Lake Simcoe Conservation Foundation, and the Lake Simcoe Region Conservation Authority , are making efforts to rectify some of the lake's environmental woes. A local activist group, The Ladies of

1925-421: The following conservation areas: The 1973 Lake Simcoe Conservation Report was released, and the guidelines stated that the Conservation Authority would monitor and review subdivision plans for home construction, provide landowners with assistance for riverbank upgrades, and establish a flood warning system. The other main goals were to protect water recharge areas, such as marshes, and to continue protection of

1980-551: The implementation of the EU Floods directive . In the United States , the National Weather Service issues flood watches and warnings for large-scale, gradual river flooding. Watches are issued when flooding is possible or expected within 12–48 hours, and warnings are issued when flooding over a large area or river flooding is imminent or occurring. Both can be issued on a county-by-county basis or for specific rivers or points along

2035-537: The lake have wide, deep, navigable mouths as a consequence of the rising waters drowning the river channels. 2017 data for the year prior from the NOAA shows the lake has a yearly average surface temperature of 2.5 degrees Celsius . When a lake is healthy, cold-water fish such as lake trout, herring, and whitefish are abundant and active. It is sometimes known as Canada's ice fishing capital. Lake Simcoe has been victim to significant eutrophication . Lake Simcoe has seen

2090-674: The lake is called Zhooniyaang-zaaga'igan , meaning "Silver Lake". Lake Simcoe's name was given by John Graves Simcoe in 1793 in memory of his father, Captain John Simcoe. Captain Simcoe was born on 28 November 1710, in Staindrop , in County Durham , northeast England, and served as an officer in the Royal Navy , dying of pneumonia aboard his ship, HMS Pembroke , on 15 May 1759. Historically, at

2145-549: The lake. This is unlike its one-time smaller sister-lake of 'Lake Minesing' to the west, being a remnant of Lake Algonquin, and, later the Nipissing stage of Lake Huron. This lake's outlet was founded on sediments located near Edenvale, which have largely been cut through, draining most of the lake. Today 'Lake Minesing' exists as the Minesing Swamp, but it re-establishes itself for a short period each spring when spring run-off floods

2200-424: The lakeshore on Georgina Island. This rock, however, also appears along the shore of Lake Couchiching, where sediments are thinner. The outlet of the lake at the north end of Lake Couchiching is controlled by Precambrian bedrock which first makes its appearance about mid-way along this lake. As a result, the lake has persisted to the present, with the outlet-flow unable to cut down through the rock, and thereby draining

2255-510: The leading cause of the decline of Lake Simcoe's water quality and coldwater fishery. The LSEMS Team seeks provincial funding in 1986 for programs and services aimed at reducing the amount of phosphorus entering water courses from both urban and rural sources to stop contamination and deterioration of the lake. This year, the Conservation Authority is renamed the Lake Simcoe Region Conservation Authority to better reflect its area of service. The Lake Simcoe Region Conservation Authority wrapped up

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2310-680: The media, and School Boards . The following year, the Conservation Authority subsidizes tree planting and farm pond construction on private lands. By 1958, many members express concern due to the explosion of development in Newmarket, and how it may affect the groundwater supplies. 1959 saw many changes, as the Upper Holland Valley Conservation Authority requests the provincial government to pass legislation to control tree-cutting on private and public property. The Conservation Authority also purchases its first plot of land,

2365-518: The name Tarontos Lac appeared on a 1678 map of New France by cartographer Jean-Baptiste-Louis Franquelin . The term Taranto refers to an Iroquoian expression meaning gateway or pass. Taronto had originally referred to The Narrows, a channel of water through which Lake Simcoe discharges into Lake Couchiching . (Natural Resources Canada gives a related translation: "it originated as the Mohawk phrase tkaronto, which means "where there are trees standing in

2420-487: The scale of flood risk, technical challenges and investment needed to deliver a reliable service. Prior to issuing a flood warning consideration is given to: Dissemination of flood warnings has moved towards a service whereby those at risk can pre-register to receive warnings by phone, email or text message from an automatic system, Floodline. Both warnings and updates about current conditions are also carried by local radio stations . In addition, live updates are carried by

2475-550: The time of the first European contact in the 17th century, the lake was called Ouentironk ("Beautiful Water") by the Wyandot (Huron) natives; The Wyandot name for the lake was rendered as Wentaron in European sources up until the 20th century. A 1675 map by Pierre Raffeix referred to the lake with the French term Lac Taronto and a 1687 map by Lahontan called it Lake Taronto , while

2530-411: The water", is likely to have originated from Huron practice of driving stakes into the channel sediments to corral fish. Fresh-cut saplings placed in the water and sediments would have sprouted branches and leaves, persisting for some time, leading to a place "where trees stand in the water". Lake Simcoe contains a large island, Georgina, which along with Snake Island and Fox Island forms the reserve of

2585-410: The water". According to several Mohawk speakers and aboriginal language expert John Steckley. Mohawks used the phrase to describe The Narrows, where Hurons and other natives drove stakes into the water to create fish weirs. Since then, many subsequent mapmakers adopted this name for it, though cartographer Vincenzo Coronelli is thought to have introduced the more commonly used spelling of Toronto in

2640-544: The waters of the lake. Georgina Island Police patrol on Georgina, Fox and Snake Islands with some capability to respond to marine needs off these islands. As part of Orillia, Grape Island is policed by the OPP. Flood warning A flood warning is closely linked to the task of flood forecasting . The distinction between the two is that the outcome of flood forecasting is a set of forecast time-profiles of channel flows or river levels at various locations, while "flood warning"

2695-480: The western shore south of Barrie and north of Bradford. Eastside Simcoe includes the towns of Beaverton, Brechin and Lagoon City. Lake Couchiching was at one time thought of as a third bay of Simcoe, known as the Bristol Channel; however, the narrows between the two bodies of water separate them enough to consider this to be another lake. The narrows, known as "where trees stand in the water", an interpretation of

2750-452: The winter, it freezes over completely and hosts a number of ice fishing competitions, making it one of the most intensely fished lakes in Ontario. However, claims that it is one of the world's largest lakes that freeze over completely in winter are pure speculation, and, in fact, spurious; Canada alone has a large number of lakes of the same size or larger that do the same. In the summer, fishing

2805-597: The word 'Toronto', was an important fishing point for the First Nations peoples who lived in the area, and the Mohawk term toran-ten eventually gave its name to Toronto by way of the portage route running south from that point, the Toronto Carrying-Place Trail. Radiocarbon dating of surviving stakes reveals that the weirs at The Narrows were in use more than 4,000 years ago. The meaning of "where trees stand in

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2860-591: The world. It includes more than 200 real-time stream stage sensors that feed data into the Iowa Flood Information System where data can be viewed, online, by disaster management staff and the general public. The stream stage sensors, mounted on bridges and culverts, use ultrasonic sensors to monitor stream and river levels. In Australia, flood warnings are handled by the Bureau Of Meteorology as well as local councils. The method of distributing

2915-554: Was called Ouentironk ("Beautiful Water") by the native Wendat/Ouendat (Huron) people. It was also known as Lake Taronto until it was renamed by John Graves Simcoe , the first Lieutenant-Governor of Upper Canada , in memory of his father, Captain John Simcoe of the Royal Navy. In Anishinaabemowin , the historical language of the First Nations living around this lake, namely Anishinaabek of Rama and Georgina Island First Nations,

2970-518: Was once called 'Rivière de Toronto' which flows into Georgian Bay's Severn Sound, then called the 'Baie de Toronto'. Later French traders referred to it as Lac aux Claies , meaning "Lake of Grids (or Trellises)" in reference to the Huron fishing weirs in the lake. It was known by this name until the beginnings of Upper Canada, when it was renamed to Lake Simcoe. The lake is bordered by Simcoe County , Durham Region , and York Region . The city of Barrie

3025-461: Was quite low enabling residents to cross in wagons or walk in ankle deep water to the mainland. However, when it was completed, the water table increased by several feet. Grape Island on the north end the lake is located off of Orillia. To the east of Grape Island is Goffatt Island , a small and private island located within Ramara . Georgina, Snake and Fox Islands are within York Region , Thorah

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