Cloudy, Breezy Conditions Usher In Warmer Weather

Increasing cloudiness and breezy conditions will usher milder temperatures into Winnipeg for the end of the work week.

A warmer air mass will begin pushing into Manitoba today, bringing increasingly southerly winds to the Red River Valley. With mixed skies leaning towards the cloudier side, Winnipeg will see winds pick up out of the southeast to 20 to 30 km/h. Temperatures will still be on the cool side today with a high near -8°C. There will be a chance of some flurries today as the warm front approaches, but no accumulations are likely. Tonight, winds will continue out of the south near 30 km/h with mostly cloudy skies continuing. The arrival of warmer air will be easily noticed with temperatures remaining steady near -8°C through the night.

Thursday will bring mostly cloudy skies to Winnipeg with winds out of the south at 30 gusting 50 km/h. Warmer air will continue to push into the region, sending the high to an above-seasonal -1°C. Mostly cloudy skies will continue on Thursday night with easing winds and a low near -4°C.

Temperatures in Winnipeg will climb towards 0°C for Thursday and Friday.

On Friday, the warmest temperatures associated with this system will be in place. Under mostly cloudy skies, high will reach 0°C with light southerly winds. Winds will shift to the north behind a trough that moves through in the evening, then strengthen overnight as a cold front slumps southwards. This cold front will also bring with it a chance for some light snow overnight. Temperatures will dip to a low near -5°C as those northerly winds pick up to around 30 km/h.

Long Range Outlook

Heading into the weekend, temperatures will slide back to well below-seasonal values. Along with the colder weather, Winnipeg will see variable cloudiness with the chance for some flurries. By the start of next week, temperatures will be back to around 5°C below normal for late-November. Those cool conditions will stick around for much of next week.

Winnipeg’s seasonal daytime high is currently -4°C while the seasonal overnight low is -12°C.

Winter Blast Arrives in Winnipeg on Tuesday

A cold front will blast through Winnipeg on Tuesday, bringing snow, gusty northwesterly winds, and a notable shift into unseasonably cold November temperatures.

Winnipeg will have one more day of respite before wintery weather crashes through the province. Winnipeg will sit under cloudy skies with light southeasterly winds through the day today. Temperatures will climb to a high near +4°C. Some light rain or snow will push into the Red River Valley this afternoon, then into Winnipeg by this evening. This precipitation will persist through the night, changing over to snow as temperatures dip towards a low near 0°C. Total snowfall accumulations of 3 to 5 cm look likely by early Tuesday morning in Winnipeg with higher accumulations to the west in southwest Manitoba and the Parkland.

Tuesday will be a rather miserable day in the Red River Valley. A cold front will sweep through Southern Manitoba midday, ushering in northwesterly winds up to 40 gusting 60 km/h. Temperatures top out near +1°C in the morning, but then drop to 0°C or just below freezing for the afternoon. Light snow will continue for much of the day with another 2 to 4 cm accumulation possible. Those gusty northwest winds will combine with the new snow and may produce areas of local blowing snow.

Forecasted snowfall from Tuesday evening to Wednesday evening. These values are likely slightly too high due to inflated snow-to-liquid water ratio values. Forecasted snowfall from Tuesday evening to Wednesday evening. These values are likely slightly too high due to inflated snow-to-liquid water ratio values.

The snow will taper off on Tuesday evening, but the wind will remain breezy out of the northwest through the night. Temperatures will dip to a low near -6°C with flurries possible overnight.

Wednesday will bring improving conditions with gradually diminishing winds and mostly cloudy skies. Temperatures will be well below-seasonal for this time of year with a high of just -4°C. Skies should remain mostly cloudy with a low near -10°C on Wednesday night.

Long Range Outlook

Unfortunately, it appears that a quasi-stationary upper-level vortex will develop over Nunavut and Northern Manitoba this week, which will ensure that temperatures remain locked well below-normal. The city will see plenty of cloud through the week, which will actually be a bit of a blessing as the overcast skies will act as a blanket and keep temperatures a bit warmer than they would otherwise.

It looks like winter will arrive Monday night into Tuesday, and it’s not going to be going anywhere anytime soon.

Winnipeg’s seasonal daytime high is currently +2°C while the seasonal overnight low is -6°C.

Cooler With A Chance of Showers to End the Work Week

After record-setting heat yesterday, a change is in the weather as unsettled conditions today lead to cooler temperatures for the weekend.

Winnipeg’s sunny skies of yesterday will be replaced by mixed to mostly cloudy skies today. A cold front passed through the region overnight, ushering in northwesterly winds for today that will keep conditions much cooler than yesterday. With breezy northwesterly winds near 30 gusting 50 km/h, Winnipeg should see a high near 8°C today.

A second cold front will sweep through the region late in the day as Arctic air surges southwards behind the low pressure system that brought the mild temperatures to the region yesterday. As the front pushes through, it will bring a chance of showers to the Red River Valley for the late afternoon into the evening. Cooler temperatures will continue to spill southwards through the night as the northwesterly winds continue. There will be a chance for flurries in the lee of the Manitoba Lakes right through the overnight period. Winnipeg will see a low near -3°C under mixed skies.

3km NAM Simulated RADAR Reflectivity with Type valid 00Z Saturday October 20, 2018
Scattered showers will spread across portions of southern Manitoba as a cold front slumps through late Friday afternoon.

Saturday will be a very cool day as an Arctic high moves across the region. Winds will diminish through the morning as temperatures climb towards a high of just +3°C. Skies should be partly cloudy with more organized bands of stratus coming off of the lakes to both the west and east of Winnipeg. Heading into the night, more cloud will move into the region as a warm front pushes across the province. Winnipeg will see a low near -1°C with southerly winds near 20 km/h.

Sunday should bring mainly sunny skies to Winnipeg as the cloud pushes off to the east. With the warm front through, the city should see a more seasonable high of around 10°C with light winds. It’s looking like Sunday will actually be quite a pleasant fall day! Temperatures will head to a low near +1°C on Sunday night with light westerly winds.

Long Range Outlook

Next week looks set to bring closer to seasonal conditions. Daytime highs in the mid- to upper single digits are forecast alongside variably cloudy skies. It also appears that it will remain dry with no notable precipitation in the forecast.

Winnipeg’s seasonal daytime high is currently 9°C while the seasonal overnight low is -1°C.

Wintery Mix on Wednesday Sets Stage for Prolonged Cold Snap

A cold, wet and windy Wednesday in Winnipeg will give way to…more cloudy and cold conditions.

Winnipeg is in for a cold, wet day today. A rapidly strengthening low pressure system tracking through Minnesota has spread rain across southern Manitoba this morning. The rain will further organize and intensify this afternoon, bolstered by an upper-level trough moving into the region. The complicating factor today will be a cold front that surges southeastwards this afternoon. Behind it, temperatures will fall to around +2°C with strong northwesterly winds of 40 gusting 60 km/h. Given the significantly cooler temperatures, it seems quite likely that the rain will change over to snow behind the front. The precipitation will taper off in the evening.

There are two possible outcomes today: either the rain holds out for much of the day and it doesn’t change over to snow until late in the afternoon, or it changes over to snow once the heavier precipitation moves in for the afternoon. In the case of the former, Winnipeg would likely see around 10 mm of rain and possibly a couple cm of snow that sticks to grassy surfaces. In the case of the latter, Winnipeg could see near 5 cm of wet snow that leaves grassy areas covered and roads slushy.

Southern Manitoba will see a swath of 10-15 mm of liquid-equivalent precipitation today; some of that will likely fall as snow.
Southern Manitoba will see a swath of 10-15 mm of liquid-equivalent precipitation today; some of that will likely fall as snow.

The gusty northwesterly winds will persist into the evening before diminishing overnight as a ridge of high pressure moves in. Skies will clear through the evening but a few clouds will likely stream off of Lake Manitoba for a portion of the night. Winnipeg will see a low temperature near -5°C.

On Thursday, Winnipeg will see just a few clouds with light winds for much of the day. Temperatures will rebound slightly with a high near 6°C. Heading into the evening, skies will cloud over ahead of the next low pressure system moving into the Northern Plains. Temperatures will dip to a low near 0°C. Through the second half of the night, it’s likely that some light rain or snow will push northwards into the Red River Valley.

Friday will bring another cloudy day with periods of light rain or snow. Light northeasterly winds will keep temperatures cool. Winnipeg will see a high near +4°C. Accumulations won’t be too much with under 5 mm forecast for the Red River Valley right now. Most of the precipitation will taper off in the evening, but skies will remain mostly cloudy through the night. A few flurries will be possible overnight off of Lake Manitoba. Winnipeg will see a low near 0°C.

Long Range Outlook

Unfortunately, the long-range forecast still stinks. Plenty of cloud will persist while the chance for rain potentially intermingled with some soggy snow returns Sunday night into Monday. High temperatures will continue way below normal in the mid- to low single digits right through the end of next week. Nothing to say but terrible weather for this time of year.

Winnipeg’s seasonal daytime high is currently 14°C while the seasonal overnight low is +3°C.