Sunday, March 22, 2015

Some wintery weather for the first week of spring..

After a spring like end to winter this year, old man winter will be making a return visit this week as a series of weather systems track across the southern Prairies and northern Plains states. The first system tonight is fairly weak, and is bringing some snow to southern Saskatchewan as of this (Sunday) evening. This area of snow will track across southwest Manitoba and the Riding Mtns tonight into the Red River valley overnight into Monday morning. Generally 2-4 cm of snow is possible with this disturbance, with a coating of 1-2 cm possible for Winnipeg overnight into Monday morning. Not a lot of snow.. but our first taste of the white stuff in over two weeks for the Monday morning commute.. so be prepared for it (roads in the city should just be wet rather than snow covered, but there could be some slippery sections, especially outside the city) 

Forecast probabilities of snowfall 10+ cm
Tuesday into Wednesday Mar 24-25th

Things get more interesting Tuesday into Wednesday as a stronger storm system tracks across Montana into North Dakota. This system is forecast to spread an area of heavier snow over southern Saskatchewan Tuesday which will be spreading into SW Manitoba, western Parklands and Interlake areas by Tuesday afternoon/evening. Temperatures will be warmer (above freezing) over Winnipeg and the RRV as well as SE Manitoba, so precipitation will likely begin as rainshowers later Tuesday before changing over to snow Tuesday night into Wednesday.  Snow is expected to continue much of Wednesday before tapering off Wednesday night. Snowfall amounts with this system will vary widely across southern MB, but at this time it appears the bulk of snow will be over the Riding Mtns and Interlake areas (possibly 10-20 cm) with lesser amounts over the RRV and SE MB (5-10 cm?). However, changes in the storm path and intensity could result in heavier amounts elsewhere. Stay tuned on this developing storm system as it brings a potentially significant snowfall over portions of southern Manitoba by mid week.

This photo montage from @JoshWright nicely chronicles
progression of snowcover in Winnipeg area over
the past couple of weeks

Storm snowfall update: (as of 9 am March 25th) 

Winnipeg ................ 5 cm
Portage La Prairie .... 5-10 cm
Brandon .................. 6 cm
Steinbach ................ 5 cm

Dauphin .............  15-25 cm
Rossburn ............. 20 cm
McCReary ........... 18 cm
Hodgson .............. 18 cm
Gilbert Plains ........ 15 cm
Neepawa ............. 15 cm
Roblin .................. 14 cm
Rivers ................... 10 cm
Miami ..................... 6 cm
Pinawa .................... 5 cm
Morris .................... 2 cm

Friday, March 13, 2015

Record warm March weekend for Winnipeg and southern MB!

Spring has sprung in southern Manitoba, with well above normal temperatures this week bringing a quick melt of the snowcover over much of the area. And the best is yet to come as even warmer air spreads across the southern Prairies this weekend, likely bringing record high temperatures in the teens over much of southern Manitoba including Winnipeg. The record high for Saturday (14th) for Winnipeg is 11.4C set in 1981 while Sunday's record high is 14.4C set during the record warm March of 2012. Both records are likely to fall in the city as temperatures reach the low to mid teens this weekend. In fact, it's possible some areas of the Red River valley may approach 20C on Sunday!!  Incredible to think we were locked in a deep freeze until this week, with temperatures still dipping well into the minus 20s during the first week of March. Slightly cooler but still mild weather is expected for next week. So get out and enjoy this fabulous weekend.. as spring has sprung early in southern Manitoba!      

CAUTION!:  City of Winnipeg and Winnipeg Police Service are reminding people that the mild temperatures through this weekend are making ice conditions on rivers and creeks extremely unstable and very unsafe. DO NOT attempt to walk on ice covered rivers, creeks or ponds as ice will be quickly deteriorating in the very mild temperatures. Remind children of this hazard.. we don't want this beautiful weekend turning into a tragedy.