Temperatures will be on the way down this afternoon into tonight and Monday over southern MB as northwest winds start to pick up behind a large storm system over Wisconsin. The bulk of the snow from this storm system has ended over southern MB, however an additional 2-5 cm of new snow is possible tonight into Monday morning as cold air deepens over the area. Strong northwest winds increasing to 50 gusting 70 km/h overnight into Monday will combine with the additional snowfall to give poor visibilities in blowing snow over open areas. In addition, temperatures dropping into the mid minus teens by Monday morning will freeze up any standing water or slush from Saturday's wet snow, producing icy conditions on area roadways and bridges. This will make for poor travelling conditions tonight and Monday across southern MB, especially for the Monday morning commute.. so caution is advised if driving especially on highways outside Winnipeg. Consult MB highways for the latest road conditions across southern MB.
UPDATE: 3:30 pm Sunday: Blizzard warning issued for Red River valley including the city of Winnipeg. Strong northwest winds combining with a developing area of fresh snow tonight will produce visibilities below 1 km across the RRV overnight into Monday. Worst conditions will be in exposed rural areas outside the city. Stay tuned..
About 7cm storm total here in Steinbach. Liquid precip total is 16.2mm so far.
ReplyDeletePASPC discussion says winter storm warning will be upgraded to blizzard warning for Red River valley later this afternoon. Concern is with strong winds and new snow bringing poor vsbys in blowing snow through the RRV overnight through Monday. Stay tuned..
ReplyDeleteThanks Rob
ReplyDeleteWe were wondering what to do down here in our Red River valley. Expecting up to an inch of new snow with the winds and it sure wont be pretty.
Rob where is this new snow comming from. I see a large system east of Winnipeg with some westerly rotation or is it going to just appear as the temperture drops.
ReplyDeleteBlizzard warning issued!
ReplyDeleteWhoa!
60 -80 km wind in the Portage area!
Daryl.. the area of new snow is on the western edge of that storm system to our east. Radar and satellite photos indicate this area of snow currently over NW Ontario edging to the west into southern MB. Some light may also blossom throughout southern MB overnight as the colder air deepens. Bulk of the heavier snow will likely stay east of Winnipeg/RRV but we still may see 2 or 3 cm here overnight into Monday morning. As we have been saying, the blizzard conditions are contingent on this area of snow moving in. If it doesn't or is lighter than currently expected, blowing snow won't be much of an issue for us.
ReplyDeleteThanks Rob. It's now starting to make sense. Right now out near the north perimeter the winds are nearly 50kmh and snow is not moving. Normally after a snowfall with this kind of wind visibility would already be an issue. Kinda of interesting that snow would be comming from western Ontario. Can't really remember that happening to often.
ReplyDeleteOn the radar, the motion of the snow to the north of us appears to be moving in a hook-like direction. Is it just me or is it really doing that?
ReplyDeleteNAM and GFS are showing another 5 to 10cm for Steinbach. That is according to a 10:1 ratio. If the ratio increases, there could be a fair amount of additional snow in SE MB.
ReplyDeleteHere comes the snow and the blizzard conditions!
ReplyDeleteLook out!
A classic prairie blizzard! Always have to look forward to it every winter =Þ
ReplyDelete00Z NAM gives Steinbach 8mm of additional precipitation...that would likely equate to 10cm of snow given the higher ratios tonight with colder air. The same run gave Winnipeg 6mm of precip, which could get close to 10cm as well.
ReplyDeletePrecip seems to be reaching a bit further west than what models were showing yesterday.. we'll see if its just initial surge or if bands get entrenched over RRV. If the latter is the case we may be looking at that 8-9mm water equivalent the models showing just east of the city.. so the snow and winds may indeed converge. Bleh, what a mess.
ReplyDelete42 cm in The Pas!.. and to think the GLB model didn't show any snow north of the US border 5 days ago! Keep that in mind the next time we're assessing model accuracy for a storm 5 days down the road!
ReplyDeleteI have NEVER seen winds and blowing snow like this in the city
ReplyDeleteUNREAL!
I went for a walk around my apartment block and the winds are so strong with the funneling effect I got knocked back unable to walk into the wind!
ReplyDelete