Conservation Authority Flood Watch Continued for Lake Superior

Lakehead Region Conservation Authority Flood Outlook Image:
Lakehead Region Conservation Authority Flood Outlook Image:

THUNDER BAY – The Lakehead Region Conservation Authority is continuing the Flood Watch for Lake Superior, within its area of jurisdiction.

The Lakehead Region Conservation Authority advises that water levels on Lake Superior continue to remain well above average. Record highs on Lake Superior were previously recorded in 1950, 1952, 1985, 1986, and 2019 with all-time lows recorded in 1925, 1926 and 2007.

The beginning of March water level was 4 centimeters below the record high set in 1986, 33 centimeters above average (1918-2019) and the same level as last year. The current water level is approximately 64 centimeters lower than the 100-year flood level for Lake Superior. Assuming average water supply conditions, Lake Superior is expected to continue its seasonal decline into March; however, it is expected to remain above average for a prolonged period of time.

Ice coverage on Great Lakes In 2020
Ice coverage on Great Lakes In 2020

Ice cover on Lake Superior as of March 17, 2020, was 4.6%, which is well below average, and considerably less than the over 90% ice cover experienced in March 2019.

Authority Staff will continue to monitor conditions and provide updates as necessary as part of its flood forecasting and warning program.

A Flood Watch is issued when there is potential for flooding. This Flood Watch will be in effect until terminated.

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