While a special weather statement continues for southeastern Manitoba, some other regions are under tornado watches.
Environment Canada has issued a Tornado Watch for regions along the U.S. border including the Winkler, Morden, Altona, the RM of Morris including the town of Morris, Pilot Mound, Manitou and Killarney regions.
A Severe Thunderstorm Watch has been issued for the Melita, Boissevain and Turtle Mountain Provincial Park areas.
Tornado watches are issued when atmospheric conditions are favourable for the development of thunderstorms that could produce tornadoes.
A moist unstable airmass is moving into these areas from the United States. This airmass will result in a few thunderstorms developing, some of which may become severe with all types of severe weather possible, including tornadoes.
According to Environment Canada, the main threats from these severe thunderstorms will be:
- hail to the size of loonies
- rainfall in excess of 75 mm
- wind gusts in excess of 100 km/h
In the event of a tornado, or if a tornado warning is issued for your area, it is recommended you take the following actions: Go indoors to a room on the lowest floor, away from outside walls and windows, such as a basement, bathroom, stairwell or interior closet. Leave mobile homes, vehicles, tents, trailers and other temporary or free-standing shelter, and move to a strong building if you can. As a last resort, lie in a low spot and protect your head from flying debris.
Thunderstorms are expected to move out of the region by evening.
Special weather statement in effect for:
Mun. of Emerson-Franklin incl. Roseau River
R.M. of De Salaberry incl. St-Pierre-Jolys and St. Malo
R.M. of Hanover incl. Steinbach Niverville and Grunthal
R.M. of La Broquerie incl. Marchand
R.M. of Ritchot incl. St. Adolphe and Ste. Agathe
R.M. of Ste. Anne incl. Richer
R.M. of Stuartburn incl. Zhoda Vita and Sundown
R.M. of Tache incl. Lorette Ste-Geneviève and Landmark
Multiple day rainfall event for southeast Manitoba.
The first wave of showers has passed with a general 5 to 10 mm fallen.
Showers and thunderstorms are likely to return this evening before tapering off overnight. Rainfall amounts will vary across the southeast with local heavy downpours likely.
Another band of showers and thunderstorms is then expected to begin Monday afternoon that will persist into Tuesday. Further rainfall amounts are uncertain but an additional 20 to 30 mm seems likely at this point. Local amounts may be much higher in local heavy downpours.
Heavy downpours can cause flash floods and water pooling on roads. Watch out for possible washouts near rivers, creeks and culverts. For more information concerning flooding please visit the province of Manitoba at: https://www.gov.mb.ca/flooding/index.html
Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to MBstorm@ec.gc.ca or tweet reports using #MBStorm.