604   
WWCN16 CWWG 120611  
SEVERE WEATHER BULLETIN  
ISSUED BY ENVIRONMENT CANADA  
AT 11:11 PM MST FRIDAY 11 DECEMBER 2009.  
---------------------------------------------------------------------  
WATCHES/WARNINGS IN EFFECT FOR NORTHERN ALBERTA...  
  
WIND CHILL WARNING FOR:  
=NEW= HIGH LEVEL - RAINBOW LAKE - FORT VERMILION - MACKENZIE HWY  
      FORT SASKATCHEWAN - VEGREVILLE - REDWATER - SMOKY LAKE  
      LEDUC - CAMROSE - WETASKIWIN - TOFIELD  
      LLOYDMINSTER - WAINWRIGHT - VERMILION - PROVOST  
      BONNYVILLE - ST. PAUL - COLD LAKE - LAC LA BICHE  
      GRANDE PRAIRIE - BEAVERLODGE - VALLEYVIEW  
      PEACE RIVER - FAIRVIEW - HIGH PRAIRIE - MANNING  
      SLAVE LAKE  
      WABASCA - PEERLESS LAKE - GIFT LAKE - CADOTTE LAKE  
      FORT MCMURRAY - FORT MACKAY  
      FORT CHIPEWYAN - WOOD BUFFALO NATIONAL PARK.  
  
      EXTREME WIND CHILLS TONIGHT AND SATURDAY.  
  
      THIS IS A WARNING THAT EXTREME WIND CHILL CONDITIONS ARE  
      IMMINENT OR OCCURRING IN THESE REGIONS. MONITOR WEATHER  
      CONDITIONS..LISTEN FOR UPDATED STATEMENTS.  
  
---------------------------------------------------------------------  
==DISCUSSION==  
BITTERLY COLD ARCTIC AIR HAS PUSHED DOWN OVER NORTHERN ALBERTA.  
AS WELL, BRISK NORTHWEST WINDS WILL DEVELOP TONIGHT PRODUCING WIND  
CHILL VALUES AS COLD AS MINUS 50. CONDITIONS WILL GRADUALLY IMPROVE  
SATURDAY MORNING IN THE GRANDE PRAIRIE AND PEACE RIVER REGIONS AS  
WIND DIMINISH UNDER A COLD ARCTIC RIDGE. EASTERN ALBERTA MAY SEE WIND  
CHILL VALUES BELOW MINUS 40 THROUGHOUT MUCH OF THE WEEKEND.  
TEMPERATURES WILL REMAIN WELL BELOW NORMAL THIS WEEKEND ACROSS  
NORTHERN ALBERTA.  
  
AT THESE EXTREME WIND CHILL VALUES FROSTBITE ON EXPOSED SKIN MAY  
OCCUR IN LESS THAN 5 MINUTES.  
  
PLEASE REFER TO THE LATEST PUBLIC FORECASTS FOR FURTHER DETAILS.  
  
END 

537   
WWCN15 CWWG 120442  
SEVERE WEATHER BULLETIN  
ISSUED BY ENVIRONMENT CANADA  
AT 9:42 PM MST FRIDAY 11 DECEMBER 2009.  
---------------------------------------------------------------------  
WATCHES/WARNINGS IN EFFECT FOR SOUTHERN ALBERTA...  
  
WIND CHILL WARNING FOR:  
      HANNA - CORONATION - OYEN.  
  
      EXTREME WIND CHILLS DEVELOPING SATURDAY.