Alerts for: York - Durham

Statements

5:24 PM EDT Wednesday 30 July 2014
Weather Advisory in effect for:

  • Pickering - Oshawa - Southern Durham Region
  • Vaughan - Richmond Hill - Markham

Conditions will be favourable for the development of funnel clouds today for regions near the shores of Lake Erie and Lake Ontario. Funnel clouds have been reported near Wheatley and Leamington, near the western shoreline of Lake Erie.

These types of funnel clouds are generated by weak rotation under rapidly growing clouds or weak thunderstorms. This weak rotation is normally not a danger near the ground. However, there is a chance that this rotation could intensify and become a weak landspout tornado.

If conditions become more favourable for the development of landspout tornadoes, watches and warnings will be issued by Environment Canada.

Landspout tornadoes do not usually cause significant damage but can still be dangerous. They can be strong enough to topple trees, damage roofs or toss debris short distances.

Treat any funnel cloud sighting seriously. Should a funnel cloud develop nearby, prepare to take shelter. These funnel clouds usually appear with little or no warning.

Environment Canada meteorologists will update alerts as required, so stay tuned to your local media or Weatheradio. Email reports of severe weather to storm.ontario@ec.gc.ca or tweet with the hashtag #ONStorm.

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