Wind warning issued for Calgary with gusts up to 90 km/h expected
An intense low pressure system of just 986 mb situated south of Saskatchewan will be the main weather maker in central and southern Alberta Tuesday.
Moisture is being pulled up from the U.S. Plains and Gulf and moving into central and southern Alberta as it circles counter-clockwise around this low which is acting as the southwestern anchor of an Omega block.
Cold Arctic air from the high is mixing with that precipitation and limiting daytime highs to well below seasonal for much of southern Alberta.
Throughout the day Tuesday and overnight Wednesday a cooler atmospheric profile will lead to heavy wet snow in portions of southern Alberta – especially along the southern foothills. It is possible some snow might start to accumulate during the day along the Highway 2 corridor south of Calgary and west of Calgary along the Trans-Canada highway, however warmer conditions Wednesday will make this is short-lived concern.
Rainfall totals for this multi-day event could exceed 50 milimetres east of Highway 2 and the QEII Highway with Environment and Climate Change Canada (ECCC) warning some areas may see more than 100 milimetres – or the equivalent of one month’s worth of rain in under 36 hours.
While the bulk of this precipitation is forecast to fall in areas that desperately need moisture, there is the potential for pooling and/or localized flooding as the ground will be unable to absorb that much moisture in such a short period of time.
Winds will be intense throughout the day – prompting ECCC to issue wind warnings overlapping many of the rainfall warnings. In Calgary winds are expected to range from 40 to 60 kilometres per hour earlier in the day and peak at 50 to 80 kilometres per hour after noon.
Rain will be mostly steady in Calgary Tuesday as the city border the western edge of this massive system. Rainfall totals should be between 10 to 15 millimetres Tuesday with Wednesday starting to bring better conditions.
Daytime highs by Thursday will exceed the average of 15 C and likely to peak on Friday at 24 C.
CTVNews.ca Top Stories
Severe thunderstorms, 15 cm of snow: Canadian weather forecast highlights
Well into spring, some parts of Canada could experience a wintry comeback, while other areas are bracing for severe thunderstorms, according to local forecasts.
Pope apologizes after using 'homophobic terms'
Pope Francis apologized Tuesday after he was quoted using a vulgar term about gay men to reaffirm the Catholic Church's ban on gay priests.
At least 60 reports of Lyme disease so far as Ontario enters tick season
Peak tick season is only just beginning but reports of bites – and tick-borne illnesses – are already higher than normal in Ontario.
Spy watchdog's foreign interference review finds 'unacceptable gaps' in accountability
The Canadian Security Intelligence Service and Public Safety Canada lacked a system for tracking who received and read specific intelligence on foreign interference, creating 'unacceptable gaps in accountability,' the national spy watchdog has found.
Tornado touches down west of the Island of Montreal
Emergency services in the town of Rigaud, Que. are investigating after a tornado touched down shortly after 5:30 p.m.
Man convicted in attack on Pelosi's husband back in court after judge's error
A man who assaulted U.S. House Speaker Nancy Pelosi's husband in 2022 will have another day in court on Tuesday after the federal judge overseeing the case failed to allow him to speak during his sentencing hearing earlier this month.
Teen was doing homework at family's Mississauga, Ont. restaurant when gunman opened fire: testimony
The 13-year-old sister of a young man killed in the attack on her family’s Mississauga restaurant in 2021 took the stand in a Brampton courthouse on Monday to describe the terrifying moments of coming under fire.
WATCH Airline pilot treated to stunning northern lights show during U.S.-Portugal flight
An airline pilot got quite a show on May 11 while flying from San Francisco to Lisbon when a solar storm caused stunning auroras.
Richard Dreyfuss' comments about women, LGBTQ2S+ people and diversity lead venue to apologize
The actor Richard Dreyfuss showed up in a dress at a 'Jaws'-themed event in Massachusetts, where the blockbuster 1975 movie he starred in was shot, and then proceeded to make demeaning remarks about women, LGBTQ2S+ people and diversity.