Tag: Windy

Hot and Humid Conditions Ahead

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Temperatures will soar this weekend in Winnipeg as a hot and humid air mass moves in from the south.

A building upper ridge will push increasingly hot and humid conditions into southern Manitoba this weekend. The first push of heat will arrive today with the temperature climbing to around 30°C in Winnipeg. Skies will stay mostly sunny through the day with light winds. Tonight will be warm with a low near 18°C.

Saturday will be another hot day with increasing humidity. The city will see variable cloudiness through the day depending on (a) how much blow-off from overnight thunderstorms in Saskatchewan and western Manitoba moves through in the first half of the day, and (b) how much thunderstorm activity develops in the afternoon. Winnipeg should see a high near 31°C, but may be warmer or cooler depending on how much sunshine there is. Dew points will gradually climb through the day, reaching the mid- to upper-teens by the end of the afternoon. Combined with the warm temperatures, this will result in humidex values in the upper 30s.

  • Significant mid-level instability will develop over southern Manitoba on Saturday afternoon, shown by 700-500mb lapse rates ≥ 8°C/km.
  • While surface-based convection will struggle against a capping inversion, significant instability for elevated convection will be in place Saturday afternoon across southern Manitoba.

The thunderstorm threat for the day is largely conditional; a strong capping inversion will likely preclude any surface-based convection through the afternoon. There will be steep mid-level lapse rates coupled with strong dynamics that may support elevated convection, though. The first organized threat will be midday if any convection from Friday night manages to survive through the morning. Conditions should be more settled for the afternoon, then a risk for thunderstorms will redevelop late in the day. We recommend you view ECCC’s Thunderstorm Outlook on Saturday morning for the authoritative look at the day’s convective potential. You’ll be able to view it in our Bulletin Viewer.

The warm conditions continue on Saturday night as winds ease off and then turn northwesterly by Sunday morning. Winnipeg will see a low near 19°C.

Sunday will usher in drier conditions as breezy westerly winds up to 30 gusting 50 km/h develop. Temperatures will again climb to around 30°C, but dew points will drop back into the single-digits, making for more comfortable conditions. Any leftover cloud in the morning will quickly clear out, leaving behind partly cloudy skies for the rest of the day. Temperatures will dip to a mild low near 17°C on Sunday night with winds easing.

Long Range Outlook

Next week will bring a fair amount of sunshine to the region with daytime highs generally in the 25 to 30°C range. No major precipitation events are forecast, however there may be one or two chances for thunderstorms through the week.

Today’s seasonal daytime high in Winnipeg is 25°C while the seasonal overnight low is 12°C.

More Warmth and Sunshine Ahead; Unsettled Weather Returns At End of Week

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Warm weather continues in Winnipeg for a couple more days, but unsettled conditions will develop on Friday into the weekend.

Winnipeg will see mainly sunny skies today with temperatures climbing to a seasonably mild 26°C. Winds will be light for much of the day, then increase out of the south to around 20 km/h as a low pressure system approaches. The city will see a few clouds through the evening with a marginal chance of a passing shower or thunderstorm. It looks unlikely that Winnipeg will see anything, but the potential is there. Temperatures will head to a low near 12°C overnight with clearing skies.

Thursday will be a gorgeous day across the region as the upper ridge begins building in. Temperatures will climb to a high near 26°C under sunny skies with light easterly winds. The wind will pick up overnight into the 20 to 30 km/h range out of the southeast as a developing low pressure system strengthens over Saskatchewan. These breezy winds will help keep temperatures warm with a low of just 16°C expected. By early Friday morning, some cloud will spread into the region along with a chance of a thunderstorm.

Very warm temperatures will move into southern Manitoba on Friday.
Very warm temperatures will move into southern Manitoba on Friday.

For Friday, a high-amplitude trough-ridge pattern over the Prairies will drive the weather. This upper flow will result in the gradual strengthening of a slow-moving low pressure system near the Saskatchewan/Manitoba border. For Winnipeg, that means a breezy southerly flow tapping into hot air mass over the northern Plains. With winds in the 30 to 40 km/h range, temperatures will climb to a high near 30°C under a mix of sun and cloud. The city may see a chance for a thunderstorm early in the day, then the chance redevelops for Friday night. Temperatures will stay warm on Friday night, dropping only to around 20°C with southerly winds continuing.

Long Range Outlook

Early indications show a rather unsettled weekend for Winnipeg. Friday’s low near the SK/MB border will stall over the province, bringing several chances for rain or thunderstorms to the city through the weekend. The weekend will start warm, but should cool towards seasonal temperatures for Sunday. Next week looks to bring settled conditions with near-seasonal temperatures.

Today’s seasonal daytime high in Winnipeg is 22°C while the seasonal overnight low is 9°C.

Breezy Conditions With Seasonably Cool Temperatures Ahead

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Winnipeg will say goodbye to the hazy skies and seasonably warm temperatures as a cold front ushers an Arctic ridge back into the region for the weekend.

Breezy northerly winds near 30 gusting 50 km/h behind will bring markedly cooler temperatures to Winnipeg today. After reaching 30.4°C yesterday, the city will find itself over 10°C cooler with a high of just 18°C. Skies will be sunny, but it’s likely that we’ll see some haze in the morning as forest fire smoke moves through. The winds will ease off this evening as temperatures head to a rather cool low near 4°C under clear skies.

Temperatures will be even slightly cooler on Saturday as the Arctic ridge builds into the region. Winnipeg will see a high of 17°C with breezy northerly winds picking back up in the morning under sunny skies. With the ridge moving through on Saturday night, temperatures will cool off to another cool low near +3°C.

Sunday will be pleasant with mainly sunny skies and light winds. Temperatures will start to recover; Winnipeg should see a high around 20°C. Winds will begin to pick up out of the southeast on Sunday night as a low pressure system over Alberta begins to push eastwards across the Prairies.

Long Range Outlook

The heat returns next week with highs climbing back into the upper 20s to start the week. This weather pattern will differ from the heat on the weekend; instead of a dry westerly flow, southerly winds in the low level will begin pulling humidity northwards out of the American Plains. With disturbances cross the region being able to tap into some moisture, it’s likely that Winnipeg will see variable cloudiness with chances for showers or thunderstorms.

The warm weather looks to continue right through the week. Summer arrives! This also means that Winnipeg will likely be entering into the start of the summer severe weather season over the next week or two. We’d like to remind our readers that you can access Environment & Climate Change Canada’s official thunderstorm outlook product on our bulletin viewer. This product updates twice a day: first for “today” during the early morning, then for “tomorrow” in the afternoon. It’s a great resource for finding out what sort of thunderstorm activity may occur in your area!

Today’s seasonal daytime high in Winnipeg is 22°C while the seasonal overnight low is 8°C.

Seasonably Cool and Breezy Weather Ahead

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Cool weather continues for Winnipeg, but temperatures will return closer to seasonal values soon.

An Arctic ridge over the province today will bring another day of cool conditions too Winnipeg. Starting with cloudy skies, some sunny breaks will develop as the day progresses with clearing likely through the afternoon. Temperatures will reach only around 8°C with light northerly winds. Skies will should be mostly clear tonight with light winds and a low near -2°C.

Temperatures will rebound on Tuesday as the ridge pushes off to the east. Winnipeg will reach a high near 14°C with southerly winds up to 30 gusting 50 km/h. Winnipeg may see a few afternoon clouds, but it should be a fairly sunny day. An approaching low pressure system will spread cloud into the region Tuesday night. Southerly winds near 20 km/h will help keep temperatures a tad milder with a low near +4°C in the city.

A few showers are possible in Winnipeg on Wednesday morning.

Winnipeg will see a chance of showers on Wednesday, particularly in the morning, as a cold front swings through. Winds will pick up out of the northwest to around 30 gusting 50 km/h with skies becoming mixed for the afternoon. Temperatures will likely be a tad cooler than Tuesday; Winnipeg should see a high near 13°C. Skies will clear out on Wednesday night as temperatures head to a low near +1°C.

Long Range Outlook

Temperatures will return to seasonal values this weekend, but more cloud will move into the region before that happens. Mixed skies on Thursday will give way to cloudier conditions with a chance of rain Friday night into Saturday. Once that’s past, though, the region should see some sunshine and highs in the upper teens for the rest of the weekend!

Today’s seasonal daytime high in Winnipeg is 17°C while the seasonal overnight low is +3°C.