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Province of Manitoba » Water Stewardship » Water Information » Flood Forecasting Reports »
Flood Report for Southern Manitoba - May 05, 2006
Water Information
FLOOD UPDATE FOR MANITOBA
May
05, 2006.
Flood sheets
showing present conditions and an updated forecast for:
Red River,
Assiniboine River and
Swan River - The
Pas Area are attached.
Weather
Red River
-
Levels of the Red River
declined 1.1 to 1.7 feet from Emerson to the Floodway Inlet during the 24 hour
period ending this morning. Strong declines are expected to continue. The
minor rises from Fargo to Grand Forks will have little effect on the decline
in Manitoba.
-
The Red River is back
within its banks with the exception of an area east of Letellier where some
agricultural flooding will continue until early next week.
-
The Red River level in
downtown Winnipeg this morning was 15.9 feet, a decline of a quarter foot
since yesterday. The level is expected to decline to 10 feet by the middle of
May with favourable weather. The natural level in downtown Winnipeg today
without operation of flood control works would have been 20.0 feet and the
peak this spring would have been near 28 feet.
-
The flow in the Red River
Floodway this morning was 6,260 cubic feet per second (cfs) while the flow
upstream of the floodway inlet was 46,060 cfs.
Assiniboine River
-
The water level in
Shellmouth Reservoir this morning was 1412.26 feet, a decline of 0.12 feet
since yesterday. The reservoir inflow was 4,000 cfs, a decline of 800 cfs from
yesterday morning. The total outflow was 5,000 cfs, all of which was going
over the spillway. The reservoir level crested May 3 at 1412.5 feet with an
outflow of 5,500 cfs during a strong north wind.
-
Flooding of valley lands
continues from Shellmouth Dam to Grand Valley west of Brandon. The river has
just crested at Russell and should crest at St. Lazare this weekend, at Virden
next Wednesday and at Brandon May 14. Flooding in the Assiniboine Valley
should end May 17-23 depending on location, based on favourable weather
conditions from now on.
-
Levels will be close to
flood stage at Curran Park in Brandon late next week. Locations east of
Brandon to Winnipeg will experience only minor rises with the river remaining
well within its banks.
-
The flow in the Portage
Diversion this morning was 3,560 cfs while the inflow to Portage Reservoir was
near 8,475 cfs. It is expected that flows in the Portage la Prairie area will
decline slowly for the next 5 days and then hold steady or rise slightly for
the following 7 days.
Pembina River
Souris River
Carrot River
-
Levels of the Carrot River
continue to decline very slowly. Minor flooding continues in the portion from
the Saskatchewan boundary to 10 miles west of The Pas with one resident still
pumping water seeping through a dike around his home. Levels will subside very
slowly during the next few weeks.
-
Flooding of agricultural
lands in the Pasquia River Valley near The Pas continues. Manitoba Water
Stewardship continues to operate pumps to reduce water levels.
Red Deer River
-
The level of Red Deer Lake
did not change at the community of Red Deer Lake since yesterday due to a
change in winds. The lake has declined about half a foot since the crest on
April 28 but is still 2.6 feet higher than the 1979 crest.
-
It is expected that it will
take about three weeks before levels at the Community of Red Deer Lake decline
sufficiently for the clean-up to commence. Residents of the community will
need to remain relocated in the interim.
Hydrologic Forecast Centre,
Water Branch,
Manitoba Water Stewardship
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