HAZARDOUS WEATHER OUTLOOK
Issue Date: 929 PM MST FRI DEC 04 2009
Expiration: 930 PM MST SAT DEC 05 2009 Expires:200912060430;;
FLUS45 KTFX 050429
HWOTFX
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GREAT FALLS MT
929 PM MST FRI DEC 4 2009
MTZ009>014-044>051-054-060430-
NORTHERN ROCKY MOUNTAIN FRONT-EASTERN GLACIER-HILL-CASCADE-
CHOUTEAU-CENTRAL AND SOUTHERN LEWIS AND CLARK-TOOLE-LIBERTY-
EASTERN PONDERA-BLAINE-SOUTHERN ROCKY MOUNTAIN FRONT-
EASTERN TETON-JUDITH BASIN-FERGUS-MEAGHER-
929 PM MST FRI DEC 4 2009
THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL
MONTANA...NORTH CENTRAL MONTANA AND SOUTHWEST MONTANA.
.DAY ONE...TONIGHT
A WINTER STORM WARNING REMAINS IN EFFECT. ACCUMULATIONS OF 2 TO 4
INCHES ARE POSSIBLE OVERNIGHT. TRAVEL WILL BECOME HAZARDOUS AS
ROADS WILL BE ICY AND STRONG WINDS WILL CREATE AREAS OF BLOWING
SNOW WITH VISIBILITIES OF LESS THAN ONE HALF MILE AT TIMES.
.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY
A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 AM MST SUNDAY.
TOTAL SNOW ACCUMULATIONS OF 6 TO 10 INCHES ARE POSSIBLE OVER THE
PLAINS...WITH 1 TO 2 FEET IN THE MOUNTAINS. BLOWING SNOW WILL
SEVERELY LIMIT VISIBILITIES AND STEADILY FALLING TEMPERATURES WILL
RESULT IN WIND CHILLS OF ZERO TO MINUS 25 DEGREES SATURDAY NIGHT
AND SUNDAY.
TEMPERATURES WILL REMAIN FRIGID THROUGH WEDNESDAY. MANY LOCATIONS
COULD SEE LOW TEMPERATURES OF 15 TO 20 DEGREES BELOW ZERO WITH
WIND CHILLS OF 30 TO 35 DEGREES BELOW ZERO ON TUESDAY NIGHT.
.SPOTTER INFORMATION STATEMENT...
WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.
$$
WINTER STORM WARNING
Issue Date: 338 AM MST FRI DEC 04 2009
Expiration: 1100 AM MST SUN DEC 06 2009 ...SIGNIFICANT SNOW POSSIBLE THIS WEEKEND...
.AN ARCTIC AIRMASS WILL MOVE SOUTH INTO NORTH CENTRAL AND CENTRAL
MONTANA THIS WEEKEND BEHIND A STRONG COLD FRONT THAT WILL PUSH
THROUGH THE AREA ON FRIDAY. THIS VERY COLD AIRMASS WILL COMBINE WITH
PACIFIC MOISTURE TO BRING WIDESPREAD SNOW TO THE AREA. SIGNIFICANT SNOWFALL
AMOUNTS ARE POSSIBLE THROUGH THE WEEKEND. IN ADDITION...GUSTY
NORTH WINDS BEHIND THE FRONT WILL CAUSE VERY COLD WIND CHILL
TEMPERATURES AND REDUCED VISIBILITIES IN AREAS OF BLOWING SNOW.
ALL OF THESE ELEMENTS WILL LIKELY CREATE VERY HAZARDOUS TRAVEL
CONDITIONS AND SLIPPERY ROADWAYS.
MTZ009>014-044>051-054-042200-
/O.UPG.KTFX.WS.A.0011.091205T0000Z-091206T1200Z/
/O.NEW.KTFX.WS.W.0012.091205T0000Z-091206T1800Z/
NORTHERN ROCKY MOUNTAIN FRONT-EASTERN GLACIER-HILL-CASCADE-
CHOUTEAU-CENTRAL AND SOUTHERN LEWIS AND CLARK-TOOLE-LIBERTY-
EASTERN PONDERA-BLAINE-SOUTHERN ROCKY MOUNTAIN FRONT-
EASTERN TETON-JUDITH BASIN-FERGUS-MEAGHER-
INCLUDING THE CITIES OF...BROWNING...CUT BANK...HAVRE...
GREAT FALLS...BIG SANDY...FORT BENTON...HELENA...LINCOLN...
SHELBY...CHESTER...CONRAD...CHINOOK...CHOTEAU...FAIRFIELD...
STANFORD...LEWISTOWN...WHITE SULPHUR SPRINGS
338 AM MST FRI DEC 4 2009
...WINTER STORM WARNING IN EFFECT FROM 5 PM THIS AFTERNOON TO
11 AM MST SUNDAY...
THE NATIONAL WEATHER SERVICE IN GREAT FALLS HAS ISSUED A WINTER
STORM WARNING FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT FROM 5
PM THIS AFTERNOON TO 11 AM MST SUNDAY. THE WINTER STORM WATCH HAS
BEEN UPGRADED WITH THIS WARNING.
SNOW IS EXPECTED TO BEGIN ALONG THE ROCKY MOUNTAIN FRONT AND
CANADIAN BORDER FRIDAY EVENING AND SPREAD SOUTHWARD OVER NORTH
CENTRAL AND CENTRAL MONTANA OVERNIGHT. PERIODS OF SNOW...POSSIBLY
MODERATE TO HEAVY AT TIMES...WILL CONTINUE THROUGH SATURDAY INTO
SATURDAY NIGHT. TOTAL SNOW ACCUMULATIONS OF 6 TO 10 INCHES ARE
POSSIBLE OVER THE PLAINS...WITH 12 TO 20 INCHES POSSIBLE IN THE
MOUNTAINS. IN ADDITION...NORTH WINDS OF 15 TO 25 MPH WITH GUSTS TO
35 MPH WILL CAUSE WIND CHILLS AS LOW AS 25 DEGREES BELOW ZERO.
AREAS OF BLOWING SNOW WILL ALSO REDUCE VISIBILITIES TO LESS THAN
ONE QUARTER MILE AT TIMES...CREATING VERY HAZARDOUS TRAVEL
CONDITIONS WITH SLIPPERY ROADWAYS.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW...
SLEET...AND ICE ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO
POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE.
FOR SPECIFIC ROAD AND TRAVEL CONDITIONS IN MONTANA...DIAL 5 1 1.
$$
WINTER STORM WATCH
Issue Date: 303 PM MST THU DEC 03 2009
Expiration: 500 AM MST SUN DEC 06 2009 ...SIGNIFICANT SNOW POSSIBLE THIS WEEKEND...
.AN ARCTIC AIRMASS WILL COMBINE WITH PACIFIC MOISTURE TO BRING
WIDESPREAD SNOW TO THE REGION THIS WEEKEND. THOUGH UNCERTAINTY
EXISTS IN THE TRACK OF THIS STORM SYSTEM THE POTENTIAL EXISTS FOR
SIGNIFICANT SNOW ACCUMULATIONS ACROSS PORTIONS OF CENTRAL AND
NORTH-CENTRAL MONTANA. IN ADDITION...VERY COLD AIR WILL SPREAD
OVER THE AREA WITH GUSTY WINDS INITIALLY CAUSING AREAS OF BLOWING
SNOW AND WIND CHILLS AS LOW AS 25 BELOW ZERO. THE COMBINATION OF
SNOW AND GUSTY WINDS WILL ALSO CREATE VERY HAZARDOUS TRAVEL
CONDITIONS WITH REDUCED VISIBILITIES AND SLIPPERY ROADWAYS.
MTZ009>014-044>051-054-040615-
/O.NEW.KTFX.WS.A.0011.091205T0000Z-091206T1200Z/
NORTHERN ROCKY MOUNTAIN FRONT-EASTERN GLACIER-HILL-CASCADE-
CHOUTEAU-CENTRAL AND SOUTHERN LEWIS AND CLARK-TOOLE-LIBERTY-
EASTERN PONDERA-BLAINE-SOUTHERN ROCKY MOUNTAIN FRONT-
EASTERN TETON-JUDITH BASIN-FERGUS-MEAGHER-
INCLUDING THE CITIES OF...BROWNING...CUT BANK...HAVRE...
GREAT FALLS...BIG SANDY...FORT BENTON...HELENA...LINCOLN...
SHELBY...CHESTER...CONRAD...CHINOOK...CHOTEAU...FAIRFIELD...
STANFORD...LEWISTOWN...WHITE SULPHUR SPRINGS
303 PM MST THU DEC 3 2009
...WINTER STORM WATCH IN EFFECT FROM FRIDAY EVENING THROUGH LATE
SATURDAY NIGHT...
THE NATIONAL WEATHER SERVICE IN GREAT FALLS HAS ISSUED A WINTER
STORM WATCH...WHICH IS IN EFFECT FROM FRIDAY EVENING THROUGH
LATE SATURDAY NIGHT.
PERIODS OF MODERATE TO HEAVY SNOW IS EXPECTED THIS WEEKEND AS AN
ARCTIC COLD FRONT AND ASSOCIATED PACIFIC MOISTURE MOVES THROUGH
THE AREA. SNOW IS EXPECTED TO BEGIN OVER THE HI-LINE AND ROCKY
MOUNTAIN FRONT FRIDAY EVENING AND SPREAD SOUTHWARD OVERNIGHT AS AN
ARCTIC COLD FRONT MOVES THROUGH. IN ADDITION...GUSTY WINDS AND
VERY COLD AIR WILL CAUSE AREAS OF BLOWING SNOW AND WIND CHILLS AS
LOW AS 25 BELOW ZERO. THE COMBINATION OF SNOW AND GUSTY WINDS WILL
CREATE VERY HAZARDOUS TRAVEL CONDITIONS WITH REDUCED VISIBILITIES
BELOW ONE QUARTER OF A MILE AND SLIPPERY ROADWAYS. THOUGH
UNCERTAINTY STILL EXISTS IN TERMS OF TOTAL SNOW ACCUMULATIONS...AT
THIS TIME SNOW ACCUMULATIONS OF 4 TO 8 INCHES ARE POSSIBLE OVER
THE PLAINS WITH 8 TO 12 INCHES IN THE MOUNTAINS HOWEVER HIGHER
AMOUNTS ARE POSSIBLE DEPENDING ON THE TRACK OF THIS SYSTEM.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A WINTER STORM WATCH MEANS THERE IS A POTENTIAL FOR SIGNIFICANT
SNOW...SLEET...OR ICE ACCUMULATIONS THAT MAY IMPACT TRAVEL.
CONTINUE TO MONITOR THE LATEST FORECASTS.
$$
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