All this heat and humidity will clash with a front moving east today. Thunderstorms are likely for most of south-central and southeast Manitoba later this afternoon, and early/mid evening. Keep an eye on the sky! Some of these storms could be quite severe, thanks to extreme instability, moderate shear, high moisture and a trigger. The main threats will be large hail (golf ball to tennis ball sized), flooding rains due to the slow moving nature of the storms, damaging winds, frequent lightning and an isolated tornado.
A severe thunderstorm warning has been issued for Morden, Winkler, Pilot Mound, Miami and Deerwood areas due to a cell that has rapidly formed in the area. Watch out for very large hail, flooding rains and frequent lightning.
ReplyDeleteHumidex advisory finally issued by EC now. Includes Winnipeg, Beausejour, Whiteshell, Steinbach, Sprague, Kenora, Fort Frances and Atikokan areas.
ReplyDeleteHumidex advisory means humidex values are expected to be at least 40 today. Stay hydrated if you have to be outside doing activities.
ReplyDeleteThe threat for severe storms is lessening for Winnipeg and west. This cloud cover is actually causing temperatures to drop significantly. However, I would not eliminate the threat completelely. The chance if definitely still there.
ReplyDeleteThunderstorm potential is pretty much over now for southern Manitoba. An isolated storm is possible along the Ontario border, however other than that it is over.
ReplyDeleteIt is dissapointing that today's forecast was a bit of a bust. We really need the rain here in the Winnipeg area. We have not seen accumulating rain in 2 weeks, and no significant rain is in the foreseeable future. We may get some storm activity Wednesday, however it does not look very good that day. I'm afraid we may very well be heading for a drought, unless if things change later in the month..
Severe thunderstorm watches have been issued for southwestern Manitoba all the way from the US Border to Swan River. These are in place due to those strong thunderstorms in Saskatchewan. A squall line will be possible as it enters Manitoba, so damaging winds and large hail could be an issue.
ReplyDeleteHere in the RRV and southeastern Manitoba, uncertainty about tomorrow exists. Some models bring the trough in much faster, while others much slower. We will have to wait until morning to see exactly how things are playing out. The potential is there for some storms in the afternoon.