Alerts for: London - Middlesex

Warnings

3:05 PM EST Friday 12 February 2016
Extreme Cold Warning in effect for:

  • London - Parkhill - Eastern Middlesex County
  • Strathroy - Komoka - Western Middlesex County

A period of very cold wind chills is expected.

A cold front will pass through the regions tonight. Very cold temperatures will follow in its wake, along with gusty northwest winds.

Very cold wind chill values between about minus 30 and minus 35 are expected overnight and Saturday morning. Wind chill conditions will improve only marginally on Saturday afternoon, then fall below minus 30 again on Saturday night in most locales. Some improvement is expected on Sunday.

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
- 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.

Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to storm.ontario@ec.gc.ca or tweet reports to #ONStorm.

 

Watches

3:16 PM EST Friday 12 February 2016
Snow squall watch in effect for:

  • London - Parkhill - Eastern Middlesex County
  • Strathroy - Komoka - Western Middlesex County

Snow squalls are expected to develop. Under the snow squall bands, visibilities will be significantly reduced due to the heavy snow, and snow will quickly accumulate.

Bands of west to east oriented snow flurries, some heavy at times, will continue to affect the regions in advance of an approaching cold front.

When the front passes this evening, winds will shift and northwest to southeast oriented snow squalls are expected to form off Lake Huron.

Under the heaviest snow squalls, snow may accumulate rapidly at rates up to few centimetres per hour. Very poor to nil visibilities may also be associated, due to the combination of heavy falling snow and blowing snow.

The snow squalls should become locked in place on Saturday and persist through until Sunday. The area likely to be most affected is along a swath from near Grand Bend to locales to the southeast, where significant snowfall amounts, possibly exceeding 30 centimetres, are possible.

Visibility may be suddenly reduced at times in heavy snow. Surfaces such as highways, roads, walkways and parking lots may become difficult to navigate due to accumulating snow.

Snow squall watches are issued when conditions are favourable for the formation of bands of snow that could produce intense accumulating snow or near zero visibilities.

Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to storm.ontario@ec.gc.ca or tweet reports to #ONStorm.

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