Wet, cold and snowy start to the week prompts weather warnings/statements
A low complex (multiple low-pressure systems) across the western Prairies and B.C. will create some challenging conditions over the next few days.
Southern Alberta will be impacted by multiple upsloping events, with the first hitting Monday afternoon and evening.
A colder air mass from the north will clash with a moisture-laden system from the Pacific producing heavy accumulations of precipitation.
These types of scenarios with systems that have counter-clockwise rotation and move over the mountains and across southern Alberta are very difficult to forecast with precision.
As such models calculating the location of the heaviest accumulations and the type of precipitation vary significantly, even from run-to-run using the same parameters and programs.
Rain will precede snow in most areas in the province as warmer atmospheric temperatures persist on Monday. The daytime highs in southern Alberta on Monday are expected to be in the low-double digits.
Temperatures will steadily decline as the week goes on with the daytime highs in Calgary expected to hit 3 C by Wednesday, which is 14 degrees below seasonal.
Overnight temperatures will remain closer to seasonal as the window between highs and lows narrows throughout the week.
It is likely that the heaviest amounts of snow on Monday and Tuesday will be west of Calgary as a low pressure system riding the southern border is expected to track east throughout the week, but again, confidence is low.
Initial snowfall is expected to melt off of roadways as surface temperatures remain elevated, but if snowfall rates are intense and/or winds are strong, (most likely to occur at higher elevations) that snow could pile up and impact traction.
Once snow does start to accumulate there is the potential for areas to rapidly add to that total. Some models are suggesting snowfall amounts of 20 to 30 centimetres are possible in the Rockies in less than a day.
Hail is possible in the foothills and portions of the Rockies Monday due to the convective potential at the beginning of this event.
A second round of snow will impact the region late Tuesday and again on Wednesday. Normal diurnal cycles will dictate that this precipitation should coincide with the coldest times of the day, so a rain/snow mix or snow will be most probable as the week goes on.
CTVNews.ca Top Stories
McGill says pro-Palestinian protest outside senior administrator's home 'crosses the line'
McGill University has denounced a pro-Palestinian protest held Sunday outside the home of one of its senior administrators.
What is BORG drinking, and why is it a dangerous trend? An expert explains
If you've been to a party lately and haven't seen someone drinking a BORG, you're likely not partying with college students.
The world's best airline is paying staff a bonus of 8 months' salary
Singapore Airlines will reward its employees with a bonus worth nearly eight months of salary, a person familiar with the matter told CNN on Friday.
Katy Perry sings goodbye to 'American Idol'
Katy Perry said her goodbyes on 'American Idol' after seven seasons. On Sunday night’s live 'idol' season finale, a medley of Perry's hit songs were performed, including 'Teenage Dream,' 'Dark Horse' and 'California Gurls.'
Red Lobster probes 'endless shrimp' losses after bankruptcy filing
U.S.-based restaurant chain Red Lobster has filed for Chapter 11 bankruptcy protection in a Florida court after securing $100 million in financing commitments from its existing lenders, the company said on Sunday.
Judge cites error, will reopen sentencing hearing for man who attacked Nancy Pelosi's husband
A federal judge will reopen the sentencing hearing for the man who broke into Nancy Pelosi's San Francisco home and bludgeoned her husband with a hammer after the judge failed to allow him to speak during his court appearance last week.
Is that 'Her'? OpenAI pauses a ChatGPT voice after some say it sounds like Scarlett Johansson
OpenAI says it plans to halt the use of one of its ChatGPT voices after some users said it sounded like Scarlett Johansson, who famously voiced a fictional, and at the time futuristic, AI assistant in the 2013 film 'Her.'
U.S. Supreme Court rejects appeal from former Guantanamo detainee Omar Khadr
The U.S. Supreme Court on Monday rejected an appeal by a Canadian-born former Guantanamo detainee who was seeking to wipe away his war crimes convictions, including for killing a U.S. soldier in Afghanistan.
Microsoft's AI chatbot will 'recall' everything you do on a PC
Microsoft wants laptop users to get so comfortable with its artificial intelligence chatbot that it will remember everything you're doing on your computer and help figure out what you want to do next.