Extreme Cold Warning in effect for:
- Sarnia – Petrolia – Western Lambton County
- Watford – Pinery Park – Eastern Lambton County
A period of very cold wind chills is expected.
A strong cold front is crossing southern Ontario and is ushering in much colder temperatures and gusty north winds. Wind chill values this afternoon are generally expected to be between minus 20 and minus 30 across most of southern Ontario.
Tonight will be very cold across all of southern Ontario. Although the winds will diminish somewhat, wind chills of minus 30 to minus 35 are expected overnight and into Friday morning.
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 and
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.
Environment Canada meteorologists will update alerts as required, so stay tuned to your local media or Weatheradio. Email reports of severe weather to [email protected] or tweet with the hashtag #ONStorm.