We are tracking the risk for severe thunderstorms from Alberta through to Ontario including the risk of isolated funnel clouds and tornadoes in multiple provinces.
Northern Ontario:
In Northern Ontario, we are watching the risk for some severe thunderstorms including the risk of an isolated tornado or two this afternoon and into the evening.
Areas in orange and marked with a '4' have a strong risk to see severe thunderstorms. This extends from Woodland Caribou Park through to Kenora and Lake of the Woods. The main threats are damaging winds between 90 and 120km/h, large hail between 3 and 5cm and heavy rain near or over 50mm. An isolated tornado or two is possible in this region.
Areas in the yellow and marked with a '3' have a moderate risk to see severe thunderstorms. This extends from Deer Lake and Pikangikum through to Perrault Falls and Fort Frances, including Vermillion Bay and Red Lake. The main threats will be from a weakening line of thunderstorms in this region. The main threats are damaging winds between 90 and 120km/h, large hail between 2 and 4cm and heavy rain near or over 50mm. An isolated tornado is possible in this region, mainly towards the southwest.
Areas in the green and marked with a '2' have a low risk to see severe thunderstorms. This extends from Mine Centre through to Sioux Lookout and Cat Lake, including Sandy Lake, Opasquia, and Dryden. The main threats will be from a weakening line of thunderstorms in this region. The main threats are damaging winds between 80 and 110km/h, large hail between 2 and 3cm and heavy rain near or over 50mm.
Elsewhere in blue and marked with a '1', non-severe thunderstorms are expected.
Note: Morning clouds will have to clear for thunderstorms to develop. These storms today are conditional. Smoke from forest fires may also limit development.
Manitoba:
In Southern Manitoba, we are watching the risk for some severe thunderstorms. There is also the risk of an isolated tornado or two this afternoon and into the evening across the southeast.
Areas in orange and marked with a '4' have a strong risk to see severe thunderstorms. This extends from Atikaki Park through to Winnipeg Beach and Stonewall, including Winnipeg. This also extends to include Somerset and Cartwright. The main threats are damaging winds between 90 and 120km/h, large hail between 3 and 6cm and heavy rain near or over 50mm. An isolated tornado or two is possible in this region, especially near the Ontario and United States borders.
Areas in the yellow and marked with a '3' have a moderate risk to see severe thunderstorms. This extends from Charron Lake through to Princess Harbour and Eriksdale, including Bloodvein and Little Grand Rapids. This risk also extends to include Austin and Turtle Mountain Park, including Portage la Prairie. The main threats will be scattered developing thunderstorms which will merge to form a line of storms later in their life span. The main threats are damaging winds between 80 and 110km/h, large hail between 2 and 4cm and heavy rain near or over 50mm. An isolated tornado may be possible towards the south near Turtle Mountain Park through to Portage la Prairie.
Areas in the green and marked with a '2' have a low risk to see severe thunderstorms. This extends from Garden Hill through to Ross Island and The Pas. This includes everything south of this line such as Brandon, Riding Mountain Part, Grand Rapids, Norway House, Swan River, Duck Mountain Part, and Jackhead. The main threats will be from extremely isolated severe thunderstorm development. Some of these thunderstorms may merge further in their lifespan into a line of severe thunderstorms. The main threats are damaging winds between 80 and 100km/h, large hail between 2 and 4cm and heavy rain near or over 50mm. Because of the isolated nature with the storms today in this region, not all highlighted regions will see thunderstorms, let alone severe thunderstorms.
Elsewhere in blue and marked with a '1', non-severe thunderstorms are expected.
Note: Morning clouds will have to clear for thunderstorms to develop. These storms today are conditional. Smoke from forest fires may also limit development.
Saskatchewan:
In Southern Saskatchewan, we are watching the low risk for some isolated severe thunderstorms.
Areas in the green and marked with a '2' have a low risk to see severe thunderstorms. This includes everything south and southeast of a line which extends from Mountain Cabin through to Arborfield, Middle Lake, Davidson, Chaplin, and Val Marie. This includes Regina, Moose Jaw, Yorkton, Humboldt, Grasslands Part and Esterhazy. The main threats will be from extremely isolated severe thunderstorm development. The main threats are damaging winds between 70 and 90km/h, large hail between 2 and 4cm and heavy rain near or over 50mm. Because of the isolated nature with the storms today in this region, not all highlighted regions will see thunderstorms, let alone severe thunderstorms.
Elsewhere in blue and marked with a '1', non-severe thunderstorms are expected.
Alberta:
In Southern Alberta, we are watching the low risk for some isolated severe thunderstorms off the foothills as well as a funnel cloud risk between Edmonton and Calgary.
Areas in the green and marked with a '2' have a low risk to see severe thunderstorms. This includes an area off the foothills south of Calgary. The risk extends from Calgary through to Brooks and Foremost, as well as through to Okotoks and Fort MacLeod, including Carway and Lethbridge. The main threats will be from isolated severe thunderstorm development off the foothills. The main threats are damaging winds between 70 and 90km/h, large hail between 2 and 4cm and heavy rain near or over 50mm. Because of the isolated nature with the storms today in this region, not all highlighted regions will see thunderstorms, let alone severe thunderstorms.
It is questionable whether or not storms will even develop across this region today, therefore, our risk map is quite low.
Elsewhere in blue and marked with a '1', non-severe thunderstorms are expected. Areas in the 'area of interest' which extends from Edmonton through to Wainwright, Hanna, Olds, Rocky Mountain House and Drayton Valley can expect the risk for some isolated funnel clouds. This includes Leduc and Red Deer.
We are watching!
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