636
WWCN11 CWWG 100320
SEVERE WEATHER BULLETIN
ISSUED BY ENVIRONMENT CANADA
AT 10:20 PM CDT FRIDAY 9 OCTOBER 2009.
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WATCHES/WARNINGS IN EFFECT FOR SOUTHERN MANITOBA...
WIND WARNING FOR:
=NEW= DUGALD - BEAUSEJOUR - GRAND BEACH.
VERY STRONG ONSHORE WINDS TONIGHT.
SNOWFALL WARNING FOR:
CITY OF WINNIPEG
SELKIRK - GIMLI - STONEWALL - WOODLANDS - ERIKSDALE
DUGALD - BEAUSEJOUR - GRAND BEACH
PORTAGE LA PRAIRIE - HEADINGLEY - BRUNKILD - CARMAN
BISSETT - NOPIMING PROVINCIAL PARK - PINE FALLS
WHITESHELL - LAC DU BONNET - PINAWA
ARBORG - HECLA - FISHER RIVER - GYPSUMVILLE - ASHERN.
10 CM OF SNOW FOR WINNIPEG..A BIT MORE IN WESTERN SECTIONS OF
THE CITY. SNOW CONTINUES OVER CENTRAL INTERLAKE REGION.
SNOW PUSHING INTO THE WHITESHELL TONIGHT. SNOWSQUALLS OFF LAKE
MANITOBA.
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==DISCUSSION==
AS OF 10 PM SNOW CONTINUES TO FALL OVER THE CITY OF WINNIPEG..WITH
ABOUT 6 CM ACCUMULATION AT THE WEATHER OFFICE LOCATED DOWNTOWN.
IT NOW APPEARS ON AVERAGE 10 CM WILL FALL THROUGHOUT THE CITY WITH
PERHAPS A BIT MORE OVER WESTERN SECTIONS DUE TO A LAKE EFFECT
STREAMER COMING OFF LAKE MANITOBA.
MEANWHILE SNOW CONTINUES TO FALL THIS EVENING OVER PORTIONS OF
SOUTHERN MANITOBA WITH THE BULK OF THE HEAVIEST SNOW ACROSS THE
CENTRAL INTERLAKE THROUGH THE FISHER BRANCH..ARBORG AND HECLA AREAS.
ANOTHER 5 CM OF SNOW IS LIKELY THIS EVENING BEFORE IT TAPERS OFF WITH
STORM TOTALS OF 10 TO 20 CM LIKELY. THIS SNOW WILL PUSH INTO THE
AREA NORTHEAST OF WINNIPEG TONIGHT GIVING WIDESPREAD SNOWFALL
ACCUMULATIONS OF ABOUT 10 CM THROUGHOUT THIS AREA AND THE WHITESHELL.
AS MENTIONED ABOVE COLD NORTHWEST WINDS BLOWING OVER THE RELATIVELY
WARM WATERS OF LAKE MANITOBA ARE PRODUCING LOCALIZED BANDS OF LAKE
EFFECT SNOW TO THE SOUTHEAST OF LAKE MANITOBA. THESE NARROW BUT
LOCALLY INTENSE LAKE EFFECT BANDS WILL PRODUCE WHITEOUT CONDITIONS AT
TIMES WITH LOCAL SNOWFALL AMOUNTS OF 10 TO 15 CM POSSIBLE TONIGHT
NORTHWEST OF THE CITY OF WINNIPEG. THE MAIN BANDS ARE EXPECTED TO
SET UP ALONG HIGHWAY 6 FROM ST LAURENT THROUGH WOODLANDS AS WELL AS
WEST OF WINNIPEG TOWARDS ELIE. NOTE THAT THE REMAINDER OF THE
PORTAGE REGION INCLUDING THE CITY OF PORTAGE LA PRAIRIE WILL RECEIVE
LESS AMOUNTS OF SNOW. THE LAKE EFFECT SNOWBANDS ARE EXPECTED TO
WEAKEN BY MORNING.
FINALLY..VERY STRONG NORTHWEST WINDS OF 60 GUSTING 80 KM/H ARE BEING
REPORTED AT VICTORIA BEACH THIS EVENING. THESE ARE DUE TO THE WARM
LAKE WATERS AND PROXIMITY OF THE LOW PRESSURE SYSTEM AND SHOULD ONLY
LAST A FEW HOURS..HOWEVER WHILE THEY DO NEAR-ZERO VISIBILITY IN SNOW
AND BLOWING SNOW CAN BE EXPECTED IN A LOCALIZED AREA DOWNWIND OF LAKE
WINNIPEG.
PLEASE REFER TO THE LATEST PUBLIC FORECASTS FOR FURTHER DETAILS.
END
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