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Thursday, February 24, 2011

Arctic outflow warning for Whistler

 
Strong winds will continue to generate windchill values of minus 20 to minus 25 this morning and tonight.

A strong Arctic ridge of high pressure over the interior of British Columbia is driving cold air and strong winds through valleys and inlets of the coast. Windchill values of minus 20 to minus 25 are expected this morning and again tonight.

Through Howe Sound windchill values are not quite as cold however very strong outflow winds of 70 km/h with gusts to 90 will persist through today.

Further south, outflow winds from the Fraser Valley will strengthen this evening as they cross towards the Southern Gulf Islands and sections of Greater Victoria near Haro strait. Northeast winds of 70 km/h with gusts to 90 will begin to abate in these regions overnight as the ridge weakens.
 

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