THUNDER STORM ALERT 20mm Rain for Cornwall Ontario SEPT 10, 2016

THUNDER STORM ALERT 20mm Rain for Cornwall Ontario SEPT 10, 2016

Watches

12:27 PM EDT Saturday 10 September 2016
Severe thunderstorm watch in effect for:

  • Cornwall – Lancaster
  • Maxville – Alexandria
  • Morrisburg – Long Sault
  • Winchester – Newington

Conditions are favourable for the development of dangerous thunderstorms that may be capable of producing strong wind gusts, large hail and torrential rain.

A fast moving cold front may trigger severe thunderstorms later this afternoon into this evening.

Main threats are torrential downpours and damaging winds. Intense lightning and hail are also possible.

An isolated tornado is not completely out of the question.

Strong wind gusts can toss loose objects, damage weak buildings, break branches off trees and overturn large vehicles. Intense lightning is likely with any thunderstorm that develops. Remember, severe thunderstorms can produce tornadoes. Heavy downpours can cause flash floods and water pooling on roads. Lightning kills and injures Canadians every year. Remember, when thunder roars, go indoors!

The Office of the Fire Marshal and Emergency Management recommends that you take cover immediately if threatening weather approaches.

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