Lake Erie Winds: The Latest HAB Bulletin

Friday, August 19, 2011

The Latest HAB Bulletin

NOAA Photo

As promised, here is the latest Harmful Algal Bloom (HAB) Bulletin from NOAA. It's not a pretty picture.

Conditions: A confirmed Microcystis bloom persists in Western Lake Erie.
Analysis: A large Microcystis bloom remains in Western Lake Erie. Model trajectory indicates an easterly transport over the weekend, potentially to Pelee Point by August 21. Recent wind conditions have been relatively low, allowing the biomass to be concentrated in the surface. Low wind stress is predicted over the weekend, so this trend should continue. Water temperatures remain high (nearly 25 C) which should allow the bloom to persist at its present intensities through next week.

You can also view the complete Bulletin in PDF, which shows imagery from the European Space Agency of the bloom's progression. As you can see, it has spread out over much of Lake Erie's western basin.

This morning I noted that the bloom has encroached into several boat basins on the west side of the Catawba Island Peninsula. The icky green stuff is everywhere.

Swimming is not recommended.

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About Lake Erie

9,940 sq mi (25,745 sq km), 241 mi (388 km) long and from 30 to 57 mi (48-92 km) wide, bordered on the N by S Ont., Canada, on the E by W N.Y., on the S by NW Pa. and N Ohio, and on the W by SE Mich. and NW Ohio.; fourth largest of the Great Lakes. It is 572 ft (174 m) above sea level with a maximum depth of 210 ft (64 m), making it the shallowest of the Great Lakes and the only one with a floor above sea level. It is part of the Great Lakes-St. Lawrence Seaway system and is linked to Lake Huron by the Detroit River, Lake St. Clair, and St. Clair River, and with Lake Ontario by the Niagara River (Lake Erie's only natural outlet) and the Welland Canal. The New York State Canal System links the lake with the Hudson River. Several small rivers, including the Maumee, Sandusky, and Cuyahoga, flow into the lake from the south; the Grand River enters from Ontario. Lake Erie is partially icebound in winter and is usually closed to navigation from mid-December to the end of March. Rich agricultural lands border the Canadian shore, where the chief towns are Port Colborne and Port Stanley. The principal U.S. cities on the lake are Buffalo, Erie, Cleveland, and Toledo; all are ports with heavy industry. Untreated industrial and municipal wastes from lakeshore cities-and from Detroit, whose wastes enter the western end of the lake-polluted the waters and rendered surrounding areas foul smelling. A U.S.-Canadian pact (1972) ended the discharge of contaminating materials into the water, and the environmental damage has since abated. Numerous recreation facilities are provided at national (Point Pelee and Fort Malden in Canada), provincial, and state parks located on the lake's islands and shores. The first European to see the lake was French explorer Louis Jolliet in 1669. The British and the French, and later the British and the Americans, fought for its control. The battle of Lake Erie (Sept. 10, 1813), a naval engagement in the War of 1812, led successfully by the U.S. leader Oliver H. Perry against the British, was fought at Put-in Bay. (Courtesy the Columbia Encyclopedia)

News and views, and history and humor, about the lake I love.

Friday, August 19, 2011

The Latest HAB Bulletin

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