SEVERE THUNDERSTORM RISK Today & Tonight for Large Hail 2-5cm, Damaging Wind Gusts 110km/h+, Flooding, Frequent Lightning, & Possibly Isolated Tornadoes

InstantWeather

Watching closely for the widespread risk of severe thunderstorms today, tonight, & overnight (Sat, June 29th, 2019) in mainly southern Manitoba.

The risk will begin to strengthen this morning & afternoon in the west closer to the international border and track east, followed by a large line of likely severe storms in the evening & overnight that could extend a bit further north.

Damaging wind gusts reaching 110km/h+ (perhaps upwards of 120km/h in the most intense storms), large hail 2-5cm, torrential rain with the potential for severe flooding, and of course, as with many severe thunderstorms, frequent lightning strikes. The tornado risk is strongest closer to the international border in the purple & red regions, however, the main risk for tornadoes is south the border.

The National Weather Service in the US has created an infographic regarding sheltering during tornado risks and we felt it was worth sharing:

Environment Canada has also produced a forecast map for today's severe weather potential:

Here's what they wrote in their forecast:

"Manitoba

Area(s): Southern

Timing: Late Saturday afternoon and evening, possibly overnight in the extreme southeast.

Threats: 3 to 5 cm hail, wind gusts 90 to 120 km/h and local rainfall amounts of 50 to 75 mm. Possible tornado in southwestern portion of the province from the Red River Valley to the Saskatchewan border.

A trough of low pressure will intersect with a hot and humid airmass over southern Manitoba allowing for the development of severe thunderstorms late this afternoon and into the night. Some thunderstorms will become very intense capable of producing 4 cm hail, heavy downpours, and even tornadoes across southern sections."

These forecast maps are not available on Environment Canada's website but the University of Manitoba is hosting them here: http://umanitoba.ca/faculties/environment/envirogeog/weather/conv_otlk/ and you can find them on Environment Canada's twitter account: @ECCCweatherMB

More details ASAP!