Some nice shots today while out chasing east of Exeter and I’ve ended up near Stratford now! 😊 #onwx #onstorm
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Cold pool behind the leading edge of convection visible in the velocity data, this is common with elevated storms (blob of cold air), surface based convection would likely have the gust front along or ahead of the rainfall by this point. #ONWX
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These storms crossing Lake Huron have developed entirely north of the surface warm front. They’ll attempt to become surface based once they hit SW ON where temps and dews are favourable. #ONWX
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This patch of clearing is where the highest surface based severe Wx threat will be oriented. Healthy dew points and rising temps with good clearing. #onwx
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Clearer skies, rising dew points and temperatures might be putting a little more energy into the boundary layer than we’d otherwise see. #ONWX
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Being Southern Ontario, and the calendar still reading March, this is one hell of a thunderstorm. ⛈️ #ONstorm #ONwx
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#ONStorm #ONwx 🔔⛈️ Large Hail and Isolated Tornado Risk on Tuesday for Southwestern Ontario and Golden Horseshoe With Widespread Severe Storm Threat
📅 Tuesday, March 31, 2026
⤵️ VIEW THE FULL FORECAST:
instantweatherinc.com/article/onta...
- Brennen
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And just like that - POOF - the forecasted storms that have triggered the severe thunderstorm watches across Southern Ontario have started to materialize in Michigan.
#ONstorm #ONwx #weather
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Updated #ONstorm risk map. A cold front arriving Tuesday evening will bring another round of thunderstorms, potentially more widespread and severe. Hazards include heavy rainfall, isolated, strong winds, and small hail. #ONwx www.theweathernetwork.com/en/news/weat...
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The Grand River Conservation Authority has issued a flood watch for the entire watershed as up to 60 mm of rain could fall in the next few days. Rainfall is expected to generate significant run-off, leading to rising water levels, GRCA says. #ONstorm #ONwx
www.theweathernetwork.com/en/news/weat...
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The Grand River Conservation Authority has issued a flood watch for the entire watershed as up to 60 mm of rain could fall in the next few days. #ONstorm #ONwx www.theweathernetwork.com/en/news/weat...
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Agreed. #onwx here is decent now. In the early days, it did not exist.
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The @nws.noaa.gov Storm Prediction Center convective outlook for Monday and a lightning potential for Tuesday evening. The lightning graphic is looking lit up. #ONstorm #ONwx
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Look at those Tuesday temperatures. The next few days are forecast to bring dynamic and changing weather across southern Ontario, showcasing the volatility of spring. Warmth, rain, thunderstorms, cooldown, snow for some. #ONstorm #ONwx www.theweathernetwork.com/en/news/weat...
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Warmth, heavy rainfall and a thunderstorm risk await southern Ontario early this week, along with a cooldown and even some snow for some areas. #ONstorm #ONwx www.theweathernetwork.com/en/news/weat...
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I am glad to be off to other site.. I miss some of the #onwx but most people have come over.. feels like the old days here for the most part
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8AM EDT (12Z) Synoptic “Snapshot” summary of
current atmospheric conditions in S. Ontario
Includes info on pressure/fronts/temps/radar/etc. A
precipitation outlook for the day until midnight & other
WX-maps as needed. Active ECCC Alerts: None at Post
#onwx #onstorm
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8AM EDT (12Z) Synoptic “Snapshot” summary of
current atmospheric conditions in N. Ontario
Includes info on pressure/fronts/temps/radar/etc. A
precipitation outlook for the day until midnight & other
WX-maps as needed. Active ECCC Alerts: None at Post
#onwx #onstorm
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Another shot of colder air & a weak disturbance brings scattered flurries into the first part of the weekend, things improve starting Sunday. You can see what the "solar loading" now is doing to the off lake flurries during the day-really messes with them. #onwx #onstorm
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Eeeeessshhh...cold and windy (-7C at S. Sauga) at first light this AM🥶-another cold shot of air for today into the first part of the weekend, things begin to moderate on Sunday into Monday. Man...this past winter😒 ...heading into Spring🌷-hope... #onwx #onstorm
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8PM EDT (00Z) Synoptic “Snapshot” summary of
current atmospheric conditions in S. Ontario-includes
info on pressure/fronts/temps/radar/etc. A
precipitation outlook for overnight till 8AM next day &
other maps as needed. Active ECCC Alerts: None at Post #onwx #onstorm
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8PM EDT (00Z) Synoptic “Snapshot” summary of
current atmospheric conditions in N. Ontario-includes
info on pressure/fronts/temps/radar/etc. A
precipitation outlook for overnight till 8AM next day &
other maps as needed. Active ECCC Alerts: None at Post
#onwx #onstorm
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Current Radar loop for the Great Lakes, into SONT, last 6hrs. review-till 6:36 PM EDT Radar. Rain/Showers/and a few embedded storms moving thru SONT-most of the heavier rains & storms focused near/over L. Erie along the N. Shore-from Essex C thru to S. Niagara #onwx #onstorm
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Latest HRRR Lightning risk and your CAPE fix (attached to post)-overview from ~now till Midnight. Colour scale on top for both #onwx #onstorm
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Current Radar loop for the SONT, last 6hrs. till 7:57 AM EDT Radar (P-type) + added current NBM Thunder Guidance (fill). Snow/mixed Precip. continues to moves thru EONT at this hour,-while showers and a few pop up storms moving thru SWONT. #onwx #onstorm
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