Thunderstorm Outlook
Valid: Monday, May 25, 2020
Forecaster: Brennen Perry
Thunderstorm outlook map
Timing |
Southwestern: 5PM - 8PM
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Not sure what region you are in? Click here for a map showing the regions across Southern Ontario. Northeastern Ontario is north of North Bay (not shown on map).
Thunderstorm Threatcast
Thunderstorm Confidence |
Moderate (50%) |
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Severe Confidence |
Low (25%) |
Tornadoes |
Funnel Cloud/Landspout Potential (Questionable) |
Max Wind Gusts |
80+ kmh | 50+ mph |
Max Hail Size |
Quarter |
Max 24-hr Rainfall |
~75 mm | ~3" |
Forecast Discussion
Issued: Monday, May 25, 2020 - 3:25PM
The environment is favourable for the development of a few pop-up thunderstorms late this afternoon and into the early evening. A zone stretching from the Western Lake Ontario shoreline and towards the K/W region has the highest chance of seeing storms and could move quite slowly leading to a flash flooding risk. Rainfall amounts over 75mm within a short timeframe in the hardest hit location isn’t out of the question. Aside from the flash flooding potential, these storms could also produce large hail up to Quarter size and strong wind gusts.
There is also the potential for funnel clouds with any of these storms even outside of the isolated severe zone. In rare cases, these types of funnel clouds can touch the ground and cause a landspout tornado but the chances remain low and questionable. The storm threat will come to an end late this evening as the storms fizzle out.
