Monday, December 14, 2009

SNOWFALL WARNING !!

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Snowfall Warning : East Vancouver Island Issued at 4:40 AM PST Monday 14 December 2009 (Issued by Environment Canada)

Major winter storm with heavy snow expected for the south coast beginning late in the day with 10 to 20 cm snowfall accumulation by Tuesday. This is a warning that significant snowfall is expected or occurring in these regions. Monitor weather conditions..Listen for updated statements.

A strong Arctic ridge of high pressure over the British Columbia interior will continue to bring cold dry Arctic air across the north and central coast regions. Strong outflow winds through the inlets and valleys will combine with cold temperatures to give wind chill values of minus 20 or below to the north and central coasts today through Tuesday. Meanwhile, a moist frontal system arriving from the pacific will clash the Arctic air over the south coast beginning late today. Snow at times heavy will begin late this afternoon over Vancouver Island and early this evening for the mainland. Total snowfall amounts of 10 to 20 centimetres are expected before the snow changes to rain on Tuesday. Freezing rain will occur during the transition to rain particularly over the Lower Fraser Valley on Tuesday and freezing rain warnings will likely be issued later today. Strong easterly winds 50 to 70 km/h will also develop this evening over West Vancouver Island ahead of the frontal system and ease overnight.

Note: Before we start complaining about the weather, consider that Edmonton had a -46C temperature yesterday which is the same as -58C with the windchill.

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