Tag: Windy

A Break From The Deep Freeze

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A stretch of mild weather will develop in Winnipeg this week with temperatures even climbing back towards 0°C on the weekend.

Today will mark the start of a large-scale pattern change that will cut off the supply of Arctic air to the Prairies. A westerly to southwesterly flow aloft will develop through the rest of the week, pushing warmer Pacific air gradually eastwards. Before the city sees the warmer temperatures, though, the colder air needs to vacate. Today will be the day for that; it will be a rather typical “transition day” for Winnipeg.

Moderate southerly winds of 30 to 40 km/h will persist through the day under mostly cloudy skies. There will be a slight chance of flurries this morning, but snow will likely stay mainly north of the city. Temperatures will climb to a high near -13°C.

Temperatures in Winnipeg will head to a low near -15°C tonight with diminishing winds under partly cloudy skies.

RDPS 10m Wind Forecast valid 18Z Wednesday December 18, 2019
Moderate southerly winds will be in place over south-central Manitoba on Wednesday.

Thursday will bring mostly cloudy skies to the city again with a high near -10°C. Winds will be light out of the north-northeast. Temperatures will dip to a low near -13°C on Thursday night under cloudy skies with a chance of flurries.

A warm front will approach the province on Friday, keeping things cloudy with a chance for some light snow. Temperatures will continue to warm with a high near -8°C in Winnipeg. The winds will stay light, but shift to southerly.

The warm front and its parent low will push across the province on Friday night into Saturday. This will bring southerly winds of 20 to 30 km/h to Winnipeg for the night with a low near -12°C.

Long Range Outlook

Pacific air will wash over southern Manitoba on Saturday, bringing seasonably mild warmth to the region. Temperatures will climb to around 0°C this weekend with overnight lows in the -5 to -10°C range. Plenty of cloud will stick around, but by the weekend some sunny breaks look likely as well. Temperatures will cool slightly to start the new work week with daytime highs dropping into the -5 to -10°C range with overnight lows dipping into the minus teens.

Today’s seasonal daytime high in Winnipeg is -11°C while the seasonal overnight low is -21°C.

Friday Snow Gives Way to Cold Weekend

Brad

An inverted trough bringing snow to Winnipeg today will usher colder weather back into the region for the weekend.

An inverted trough crossing the province this morning will continue to bring snow to Winnipeg. Accumulating snow will continue through the morning then taper off through the afternoon. Much of the region will see 5 to 10 cm of fairly fluffy snow. Brisk northerly winds near 30 gusting 50 km/h will develop in the afternoon which will usher in cooler temperatures ahead of an approaching Arctic high. The combination of new fluffy snow, some lingering flurries, and moderate winds will likely produce areas of blowing snow in rural areas. Skies will clear overnight with winds of 20 to 30 km/h and temperatures dipping to a low near -25°C. Wind chill values are forecast to dip into the -35 to -40 range.

RDPS 24 hr. Snow Accumulation Forecast (Kuchera Ratio) valid 00Z Saturday December 14, 2019
Much of southern Manitoba will see 5 to 10 cm of snow today; amounts will be closer to 5 cm along the U.S. border and increase to almost 10 cm across WestMan and the Interlake.

An Arctic high moving into the province on Saturday will bring sunny skies and cold temperatures. The wind will taper off through the morning and temperatures will climb to a high around -20°C. Skies will stay clear with light winds on Saturday night as temperatures dip to a low near -28°C.

Winnipeg will see some cloudy periods on Sunday as the Arctic high exits the region and cloud and warmer air begins pushing in from the west. Winds will gradually pick up out of the south to around 20 km/h by the end of the day. This cool southerly outflow from the high will keep temperatures cooler again with a high only around -17°C. A few flurries are possible through the day with mixed skies and a low near -22°C.

Long Range Outlook

Next week looks to bring variable temperatures with highs generally in the -10 to -20°C range with overnight lows in the low to mid-minus 20s. No significant snowfall is in the forecast and the city will likely see a fair amount of sunshine.

Today’s seasonal daytime high in Winnipeg is -10°C while the seasonal overnight low is -19°C.

Major Pattern Change Sends Arctic Blast Southwards

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Winnipeg will see a major shift in temperatures this weekend that will mark the start of a long stretch of colder weather.

A series of passing lows will keep Winnipeg cloudy heading into the weekend with a couple of chances for flurries. A brisk southerly wind will develop this morning, increasing into the 20 to 30 km/h range. This cool outflow from a departing ridge will keep temperatures slightly cooler again today with a high eventually reaching -6°C. An approaching shortwave will bring a chance of flurries to the region later this afternoon into the evening. Skies will stay cloudy overnight with a chance of flurries as temperatures dip to a low near -10°C. The winds will ease in the evening.

Winds will pick up out of the south again on Saturday as an organized clipper system arrives. The city will see a chance for some light snow as a warm front moves through in the morning. Winds will pick up out of the south into the 30 to 40 km/h range in the morning as temperatures head to a high near -1°C. The wind will ease late in the day.

The major pattern shift begins on Saturday evening as a cold front sweeps southeastwards across the province. It will push through, bringing a bit of light snow and then ushering in northwesterly winds of 30 to 40 km/h. There northwest winds will be pushing in much colder air sourced from a large Arctic high moving into the Prairies. Temperatures will dip to a low near -17°C on Saturday night.

GDPS 2m Temperature Forecast valid 18Z Sunday December 8, 2019
Bitterly cold air will begin building into Manitoba on Sunday as a potent Arctic high pushes into the region.

Temperatures will barely recover on Sunday as skies clear out and winds gradually ease through the day. The Arctic high will push into the southern half of the province on Sunday night, sending temperatures into the low minus 20’s overnight.

Long Range Outlook

Unfortunately, there is little improvement for Winnipeg in the medium-range forecast. Cold weather will continue to persist for several more days.

GDPS 850mb Temperature Anomaly Forecast valid 00Z Tuesday December 10, 2019
The forecast 850mb temperature anomalies show Winnipeg embedded within a large outbreak of below-normal temperatures to start next week.

The city will spend much of the week with daytime highs near -20°C and overnight lows in the mid- to low -20’s. Wind chills will also begin to move into hazardous territory with values in the -30 to -40 range possible during the nights.

Moderation towards seasonal temperatures should occur near the end of the week.

Today’s seasonal daytime high in Winnipeg is -8°C while the seasonal overnight low is -17°C.

Cold Front Brings Seasonal Temperatures Back to Winnipeg

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Winnipeg will get one more seasonably mild day before a cold front brings cooler temperatures back to the region.

Mild temperatures will stick around for one more day in Winnipeg with the city seeing variable cloudiness and light westerlies. A cloudy morning will give way to mixed skies with a high near -1°C. A cold front pushing into the region this evening will bring more clouds and a chance of flurries. Winds will shift to the northwest behind the front overnight as temperatures dip to a low near -9°C.

Thursday will bring north-northwest winds of 30 gusting 50 km/h to Winnipeg as an Arctic ridge builds in from the northern Prairies. This push of cooler air will keep temperatures steady through the day around -9°C. Skies will be cloudy through the morning and some clearing will gradually push towards the region through the afternoon.

RDPS 2m Temperature Forecast valid 15Z Thursday December 5, 2019
A large Arctic ridge will push into Manitoba on Thursday, bringing breezy northwest winds and cooler temperatures to the region.

The city will see a chance of flurries through the day but little to no accumulation. Winnipeg will see mainly clear skies for a bit on Thursday night, allowing temperatures to drop to a low near -16°C. More cloud will push back into the Red River Valley overnight.

Winnipeg will again see mostly cloudy skies on Friday with a stiff southerly wind increasing into the 30 to 40 km/h range. The cloud and southerly wind coming out of the Arctic ridge will keep temperatures seasonal with a high near -7°C. Winds will ease on Friday night with temperatures dropping a degree or two.

Long Range Outlook

A more organized low pushing into the region on Saturday will bring warmer temperatures to the region with daytime highs climbing back to around -2°C. As it crosses on Saturday afternoon there will be a good chance for some snow, then a potent shot of cold air follows.

By Monday, daytime highs will dip into the -15 to -20°C range, with daytime highs of -20°C possible on Tuesday and Wednesday. Yikes! These cold temperatures will stick around at least until the end of the week.

Today’s seasonal daytime high in Winnipeg is -7°C while the seasonal overnight low is -16°C.