![]() |
![]() |
![]() |
||
| Surface Water Information Flood Forecasting Reports |
Flood Report for Manitoba
June 21st, 2007
There was little or no rain during the 24 hour period ending this morning.
There is a chance or significant rain for Sunday and Monday over most of southern Manitoba with heaviest amounts likely north of PTH #1. The chance of significant rain in the U.S. portion of the Red River watershed during the next 5 days appears lesser based on U.S forecasts.
A HIGH WATER LEVEL ADVISORY CONTINUES FOR WHITESHELL AND NOPIMING PROVINCIAL PARKS
HIGH WATER LEVEL ADVISORY CONTINUES FOR THE ASSINIBOINE RIVER FROM SHELLMOUTH TO MILLWOOD.
A HIGH WATER LEVEL ADVISORY CONTINUES FOR THE RED RIVER.
Eastern Manitoba:
A high water advisory remains in effect for Whiteshell and Nopiming Parks but levels of most lakes and streams are now declining.
Logs have been removed from most dams controlling levels in the Whiteshell. There is little further that can be done in terms of dam operations. Problems due to high lake levels are likely to persist into early July even if the wet spell ends soon.
Lakes along the Winnipeg River are at near normal levels. Lake Of The Woods still remains below its average level for this time of year.
Red River Watershed:
A high water level advisory continues for the Red River.
The river rose close to a foot from Grand Forks to Letellier during the 24 hour period ending this morning. Rises in the Winnipeg area were less than half a foot. The river is expected to crest at Grand Forks tomorrow, at Emerson June 29 and in the Winnipeg area July 3 based on normal weather conditions from now on.
There is little change in predicted crests for the Red River in Manitoba. Additional expected rises between Emerson and the Floodway Inlet range from 6 to 8 feet depending on location. Flooding of low-lying agricultural lands is expected in the area from Letellier to St. Jean but elsewhere the river will remain within its banks. This forecast is based on normal weather conditions from now on. Crests for this event will still be 3-5 feet below those of the record summer flood of 2005.
The river level in downtown Winnipeg this morning was 12.62 feet and is expected to crest between 15 and 16 feet based on normal weather conditions from now on. The normal summer level is 6.3 feet. A minor amount of water may flow naturally into the Red River Floodway near the time of the crest.
A flood sheet for the Red River is attached.
Assiniboine River:
A high water level advisory continues for the Assiniboine River from Shellmouth Dam to Millwood.
The Shellmouth Reservoir level, inflow and outflow changed very little during the 24 hour period ending this morning but are expected to decline during the next few days based on little rain. Rises could again develop if significant rain falls on the weekend. The reservoir water level this morning was 1410.63 feet with a spillway flow to 1930 cfs. Saskatchewan Water Authority continues to restrict outflows from Good Spirit Lake to reduce flows at Kamsack.
There has been no flow through the conduit since 10 a.m. June 7. The reservoir inflow is presently near 1700 cfs.
A flood sheet for the Assiniboine River is attached.
Northwest:
Streams in the Dauphin and Duck Mountain region are still running high but most are now declining. There is a possibility of further rises and localized flooding this weekend and early next week if heavy rain develops as indicated by some weather forecasts.
Lake Winnipegosis is presently at its highest level since the mid 1950’s. Additional shoreline flooding could occur in low areas if strong winds develop during the next six weeks.
The level of Red Deer Lake remains very high but continues to decline.
Water levels remain very high in the Saskeram area west-northwest of The Pas. While no homes are flooded, there are continued difficulties with cattle due to flooded pastures.