Thunderstorms deliver another 25-30mm since Tuesday

John's Manitoba weather journal: Wednesday, May 18

Rainfall measurements are coming in now and the Winnipeg area did receive some fairly significant totals due to thunderstorms this morning. Rob in Charleswood (@robsobs) measured 24 mm since midday Tuesday and Dale in Island Lakes (@meteo1979) measured about 33 mm as a two day total. As stated yesterday, if we get thunderstorms passing over, amounts of rain can be increased greatly. 

Going forward, a few more showers today but the thunderstorms have ended. We'll even see a bit of clearing tonight which may lead to some patchy fog, mainly in Winnipeg and southeast Manitoba.

Thursday into Friday, we see another low moving in, with another 10-20 millimetres of rain through the Red River Valley. Some of that could be mixed with snow Friday morning in some parts of southern Manitoba. 

The long weekend: Saturday morning starts with a few showers but skies start to brighten in the afternoon. It's still going to be chilly, though, with a highs barely getting past the single digits both Friday and Saturday. 

Sunday and Monday do look a lot brighter with temps in the mid teens. 

People keep asking, "When is it going to warm up?"

I've been looking at some longer-range guidance for temperatures in the eastern Prairies and I don't see us returning to daytime highs of 20 C or warmer until the very end of the month. That's at least two more weeks.

Wind forecast:

• Wednesday: NW @ 30-40 in the afternoon. Light wind overnight. 
• Thursday: E @ 10 in the morning. S @ 10 in the afternoon.
• Friday: N @ 30-50 in the morning. NW @ 30-50 in the afternoon. 
• Saturday: NW @ 20 in the morning. NW @ 10-15 in the afternoon.