Snow squall and extreme cold warnings are in effect.
Flurries and squalls today, about 10 cm, windy with a high -18 and wind chill -41 this morning and -32 this afternoon.
Partly cloudy tonight, chance of flurries, the low -28 with the wind chill -37.
Sunday mainly sunny with the high -11 and wind chill -37.
Family Day Monday cloudy, chance of flurries and the high -4.
Here are the full details of the weather warnings from Environment Canada:
Extreme Cold Warning in effect for:
- Barrie - Collingwood - Hillsdale
- Midland - Coldwater - Orr Lake
- Orillia - Lagoon City - Washago
A period of very cold wind chills is expected.
The coldest air of the season has settled across Southern Ontario for the weekend.
Very cold wind chill values between about minus 30 and minus 40 are occurring this morning, aided by bitterly cold northerly winds.
Wind chill conditions will improve only marginally this afternoon, then fall below minus 30 again tonight in most locales.
Some improvement is expected on Sunday as temperatures moderate somewhat.
Milder weather will arrive on Family Day Monday with temperatures approaching normal values for this time of year.
While anyone who isn't dressed warmly is at risk in cold weather conditions, some are at greater risk than others for frost bite and hypothermia:
- homeless people
- outdoor workers
- people living in homes that are poorly insulated (with no heat or no power)
- people with certain medical conditions such as diabetes, peripheral neuropathy and diseases affecting the blood vessels, people taking certain medications including beta-blockers
- winter sport enthusiasts
- people who consume excess alcohol
- infants
- seniors.
Wear appropriate clothing.
- Always wear clothing appropriate for the weather. Synthetic and wool fabrics provide better insulation. Some synthetic fabrics are designed to keep perspiration away from your body which keep you dry and further reduce your risk.
- Dress in layers with a wind resistant outer layer. You can remove layers if you get too warm (before you start sweating) or add a layer if you get cold.
- Wear warm socks, gloves, a hat and scarf in cold weather. Be sure to cover your nose to protect it.
- If you get wet, change into dry clothing as soon as possible. You lose heat faster when you're wet.
Extreme cold warnings are issued when very cold temperatures or wind chill creates an elevated risk to health such as frost bite and hypothermia.
Snow squall warning in effect for:
- Barrie - Collingwood - Hillsdale
Flurries and localized snow squalls are occurring to the south of Georgian Bay in the wake of a potent Arctic front which crossed the region yesterday.
The main band extends from roughly Thornbury and Collingwood then southwards to near Creemore.
Additional snowfall amounts of locally 10 cm are likely today with some localized blowing snow.
Prepare for quickly changing and deteriorating travel conditions.
Visibility will be suddenly reduced to near zero at times in heavy snow and blowing snow.
Rapidly accumulating snow could make travel difficult over some locations.
Snow squall warnings are issued when bands of snow form that produce intense accumulating snow or near zero visibilities.
