HAZARDOUS WEATHER OUTLOOK
Issue Date: 237 PM MST WED DEC 30 2009
Expiration: 400 AM MST THU DEC 31 2009
THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHEAST
MONTANA.
.DAY ONE...TONIGHT
A WIND CHILL ADVISORY IS IN EFFECT FOR AREAS NEAR THE CANADIAN
BORDER LATE TONIGHT AND THURSDAY MORNING FOR HAZARDOUS WIND
CHILLS OF 20 TO 30 BELOW.
.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY
AS SURFACE HIGH PRESSURE MOVES INTO THE DAKOTAS THURSDAY NIGHT IT
WILL CREATE A TIGHTENING PRESSURE GRADIENT ACROSS THE AREA
RESULTING IN INCREASING EAST WIND. WITH AN ARCTIC AIR MASS IN PLACE
THIS WIND WILL CREATE DANGEROUS WIND CHILLS FROM LATER THURSDAY
NIGHT INTO OR THROUGH SATURDAY OF 25 TO 35 BELOW. A WIND CHILL
ADVISORY WILL LIKELY BE NEEDED FOR AT LEAST PARTS OF NORTHEAST
MONTANA.
ACCUMULATING SNOW AND AREAS OF LIGHT FREEZING RAIN ARE ALSO
POSSIBLE FRIDAY NIGHT AND SATURDAY AS A WARM FRONT MOVES THROUGH
NORTHEAST MONTANA FROM WEST TO EAST. THIS COULD POSSIBLY REQUIRE A
WINTER WEATHER ADVISORY FOR AT LEAST PARTS OF THE AREA DUE TO
ICE...SNOW AMOUNTS AND BLOWING SNOW.
.SPOTTER INFORMATION STATEMENT...
WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.
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