Winter Storm Watch 2, NWS Great Falls, MT

838 
WWUS45 KTFX 171109
WSWTFX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE GREAT FALLS MT
409 AM MST TUE JAN 17 2012

MTZ009-048-172300-
/O.CON.KTFX.WS.W.0002.120117T1200Z-120120T1100Z/
NORTHERN ROCKY MOUNTAIN FRONT-SOUTHERN ROCKY MOUNTAIN FRONT-
INCLUDING THE FOLLOWING LOCATIONS...BROWNING...MARIAS PASS...
CHOTEAU
409 AM MST TUE JAN 17 2012

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 AM MST FRIDAY...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 AM MST FRIDAY. 

* TIMING AND MAIN IMPACT: PERIODS OF LIGHT TO MODERATE SNOW ARE 
  EXPECTED THROUGH TUESDAY EVENING. SNOW IS EXPECTED TO DIMINISH 
  IN INTENSITY LATE TUESDAY NIGHT OR EARLY WEDNESDAY BEFORE 
  INCREASING AGAIN BY LATE WEDNESDAY. PERIODS OF HEAVY SNOW WILL 
  THEN CONTINUE INTO THURSDAY NIGHT. HIGHWAY 2 ON MARIAS PASS... 
  AND HIGHWAY 89 FROM BROWNING TO BABB WILL BE GREATLY IMPACTED. 

* SNOW ACCUMULATIONS: TOTAL SNOW ACCUMULATIONS OF 8 TO 14 
  INCHES ARE LIKELY OVER THE PLAINS...AND 14 TO 28 INCHES ARE 
  LIKELY OVER THE MOUNTAINS.

* VISIBILITY: VISIBILITIES WILL BE REDUCED TO LESS THAN ONE 
  HALF MILE IN HEAVY SNOW.

* OTHER IMPACTS: ROADS WILL BE SNOW COVERED AND ICY. WIND 
  CHILLS COULD FALL AS LOW AS 30 DEGREES BELOW ZERO.

* LOCATIONS AFFECTED INCLUDE: CHOTEAU...BROWNING...MARIAS PASS

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW
ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN
EMERGENCY. IF YOU MUST...KEEP AN EXTRA FLASHLIGHT...FOOD...AND
WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY.

FOR SPECIFIC ROAD AND TRAVEL CONDITIONS IN MONTANA...DIAL 5 1 1.

&&

$$

MTZ010-011-013-044>047-049-172300-
/O.NEW.KTFX.WC.Y.0001.120118T0000Z-120118T1500Z/
/O.CON.KTFX.WS.A.0002.120118T1200Z-120120T1200Z/
EASTERN GLACIER-HILL-CHOUTEAU-TOOLE-LIBERTY-EASTERN PONDERA-
BLAINE-EASTERN TETON-
INCLUDING THE FOLLOWING LOCATIONS...CUT BANK...HAVRE...
BIG SANDY...FORT BENTON...SHELBY...CHESTER...CONRAD...CHINOOK...
FAIRFIELD
409 AM MST TUE JAN 17 2012

...WIND CHILL ADVISORY IN EFFECT FROM 5 PM THIS AFTERNOON TO 8 AM
MST WEDNESDAY...

THE NATIONAL WEATHER SERVICE IN GREAT FALLS HAS ISSUED A WIND
CHILL ADVISORY...WHICH IS IN EFFECT FROM 5 PM THIS AFTERNOON TO
8 AM MST WEDNESDAY.  

* TIMING AND MAIN IMPACT: VERY COLD TEMPERATURES TONIGHT WILL
  COMBINE WITH WINDS OF 10 TO 15 MPH TO CREATE WIND CHILLS OF 25
  TO 35 BELOW ZERO THROUGH MID MORNING ON WEDNESDAY.

* LOCATIONS AFFECTED INCLUDE: FAIRFIELD...CHESTER...SHELBY...
  CHINOOK...BIG SANDY...FORT BENTON...CONRAD...HAVRE...CUT 
  BANK 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND CHILL ADVISORY MEANS THAT VERY COLD AIR AND STRONG WINDS
WILL COMBINE TO GENERATE LOW WIND CHILLS. THIS WILL RESULT IN
FROST BITE AND LEAD TO HYPOTHERMIA IF PRECAUTIONS ARE NOT TAKEN.
IF YOU MUST VENTURE OUTDOORS...MAKE SURE YOU WEAR PROPER WINTER CLOTHING.

&&

$$

MTZ008-012-014-015-050>055-172300-
/O.CON.KTFX.WS.A.0002.120118T1200Z-120120T1200Z/
BEAVERHEAD-CASCADE-CENTRAL AND SOUTHERN LEWIS AND CLARK-MADISON-
JUDITH BASIN-FERGUS-JEFFERSON-BROADWATER-MEAGHER-GALLATIN-
INCLUDING THE FOLLOWING LOCATIONS...BIG HOLE PASS...
CHIEF JOSEPH PASS...DILLON...MONIDA PASS...GREAT FALLS...
KINGS HILL PASS...FLESHER PASS...HELENA...LINCOLN...
MACDONALD PASS...ROGERS PASS...ENNIS...NORRIS HILL...
RAYNOLDS PASS...TWIN BRIDGES...STANFORD...LEWISTOWN...
LEWISTOWN DIVIDE...BOULDER...BOULDER HILL...ELK PARK PASS...
HOMESTAKE PASS...WHITEHALL...TOWNSEND...WHITE SULPHUR SPRINGS...
BATTLE RIDGE PASS...BOZEMAN...BOZEMAN PASS...TARGHEE PASS...
WEST YELLOWSTONE
409 AM MST TUE JAN 17 2012

...WINTER STORM WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH
LATE THURSDAY NIGHT...

A WINTER STORM WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH
LATE THURSDAY NIGHT. 

* TIMING AND MAIN IMPACT: AN EXTENSIVE AND LONG-LASTING PLUME OF 
  PACIFIC MOISTURE WILL MOVE INTO AND EAST OF THE CONTINENTAL 
  BEGINNING ON WEDNESDAY. THIS MOISTURE WILL INTERACT WITH THE 
  COLD AIR ALREADY IN PLACE ACROSS THE REGION AND A 
  FRONTAL BOUNDARY LOCATED THROUGH SOUTHWEST MONTANA TO PRODUCE 
  WIDESPREAD SNOW THAT WILL CONTINUE UNTIL EARLY FRIDAY MORNING. 

* SNOW ACCUMULATIONS: SNOWFALL RATES WILL GENERALLY BE LIGHT 
  BUT WILL PERSIST FOR AN EXTENDED PERIOD...RESULTING IN 
  ACCUMULATIONS OF 6 TO 8 INCHES ACROSS THE PLAINS AND VALLEYS 
  AND 1 TO 2 FEET IN THE MOUNTAINS. OCCASIONAL PERIODS OF 
  MODERATE TO HEAVY SNOW ARE POSSIBLE DURING THIS EVENT...
  ESPECIALLY ALONG THE ROCKY MOUNTAIN FRONT AND MOUNTAIN 
  RANGES OF SOUTHWEST MONTANA.

* WINDS AND VISIBILITY: WINDS AND FOG ACCOMPANYING THE SNOW 
  WILL REDUCE LOCAL VISIBILITIES TO LESS THAN ONE HALF MILE AT 
  TIMES. 

* OTHER IMPACTS: EXPECT ROADS TO BECOME SNOW COVERED AND ICY... 
  CREATING HAZARDOUS TRAVEL CONDITIONS.

* LOCATIONS AFFECTED INCLUDE: WHITE SULPHUR SPRINGS...BATTLE 
  RIDGE PASS...BOZEMAN...BOZEMAN PASS...TARGHEE PASS... WEST 
  YELLOWSTONE...STANFORD...LEWISTOWN...LEWISTOWN DIVIDE... 
  BOULDER...BOULDER HILL...ELK PARK PASS...HOMESTAKE PASS... 
  WHITEHALL...TOWNSEND...GREAT FALLS...KINGS HILL PASS... BIG 
  HOLE PASS...CHIEF JOSEPH PASS...DILLON...MONIDA PASS... 
  FLESHER PASS...HELENA...LINCOLN...MACDONALD PASS... ROGERS 
  PASS...ENNIS...NORRIS HILL...RAYNOLDS PASS... TWIN BRIDGES 

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.

&&

$$

584 
WWUS45 KTFX 171659
WSWTFX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE GREAT FALLS MT
959 AM MST TUE JAN 17 2012

MTZ009-048-180500-
/O.CON.KTFX.WS.W.0002.000000T0000Z-120120T1100Z/
NORTHERN ROCKY MOUNTAIN FRONT-SOUTHERN ROCKY MOUNTAIN FRONT-
INCLUDING THE FOLLOWING LOCATIONS...BROWNING...MARIAS PASS...
CHOTEAU
959 AM MST TUE JAN 17 2012

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 AM MST FRIDAY...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 AM MST FRIDAY. 

* TIMING AND MAIN IMPACT: PERIODS OF SNOW...HEAVY TIMES WILL
  CONTINUE INTO THURSDAY NIGHT. HIGHWAY 2 ON MARIAS PASS...AND
  HIGHWAY 89 FROM BROWNING TO BABB WILL BE GREATLY IMPACTED.

* SNOW ACCUMULATIONS: TOTAL SNOW ACCUMULATIONS OF 8 TO 14 
  INCHES ARE LIKELY OVER THE PLAINS...AND 14 TO 28 INCHES ARE 
  LIKELY OVER THE MOUNTAINS.

* VISIBILITY: VISIBILITIES WILL BE REDUCED TO LESS THAN ONE 
  HALF MILE IN HEAVY SNOW.

* OTHER IMPACTS: ROADS WILL BE SNOW COVERED AND ICY. WIND 
  CHILLS COULD FALL AS LOW AS 30 DEGREES BELOW ZERO.

* LOCATIONS AFFECTED INCLUDE: CHOTEAU...BROWNING AND MARIAS PASS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW
ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN
EMERGENCY. IF YOU MUST...KEEP AN EXTRA FLASHLIGHT...FOOD...AND
WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY.

FOR SPECIFIC ROAD AND TRAVEL CONDITIONS IN MONTANA...DIAL 5 1 1.

&&

$$

MTZ010-011-013-044>047-049-180500-
/O.EXT.KTFX.WC.Y.0001.120117T1659Z-120118T1500Z/
/O.CON.KTFX.WS.A.0002.120118T1200Z-120120T1200Z/
EASTERN GLACIER-HILL-CHOUTEAU-TOOLE-LIBERTY-EASTERN PONDERA-
BLAINE-EASTERN TETON-
INCLUDING THE FOLLOWING LOCATIONS...CUT BANK...HAVRE...
BIG SANDY...FORT BENTON...SHELBY...CHESTER...CONRAD...CHINOOK...
FAIRFIELD
959 AM MST TUE JAN 17 2012

...WIND CHILL ADVISORY NOW IN EFFECT UNTIL 8 AM MST WEDNESDAY...
...WINTER STORM WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH
LATE THURSDAY NIGHT...

THE WIND CHILL ADVISORY IS NOW IN EFFECT UNTIL 8 AM MST
WEDNESDAY. A WINTER STORM WATCH REMAINS IN EFFECT FROM LATE
TONIGHT THROUGH LATE THURSDAY NIGHT. 

* TIMING AND MAIN IMPACT: VERY COLD TEMPERATURES TONIGHT WILL 
  COMBINE WITH WINDS OF 10 TO 15 MPH TO CREATE WIND CHILLS OF 25 
  TO 35 BELOW ZERO THROUGH MID MORNING ON WEDNESDAY. 

* WIND CHILL IMPACTS: WITH WIND CHILL VALUES NEAR 30
  BELOW...FROSTBITE CAN OCCUR IN LESS THAN 30 MINUTES.

* SNOW ACCUMULATIONS: SNOWFALL RATES WILL GENERALLY BE LIGHT BUT
  WILL PERSIST FOR AN EXTENDED PERIOD...RESULTING IN TOTAL SNOW
  ACCUMULATIONS OF 4 TO 8 INCHES AT LOWER ELEVATIONS...AND 1 TO 2
  FEET IN THE MOUNTAINS. OCCASIONAL PERIODS OF MODERATE TO HEAVY
  SNOW ARE POSSIBLE DURING THIS EVENT.

* SNOW IMPACTS: EXPECT UNTREATED ROADS TO BE SNOW COVERED AND
  SLIPPERY.

* LOCATIONS AFFECTED INCLUDE: FAIRFIELD...CHESTER...SHELBY...
  CHINOOK...FORT BENTON...CONRAD...HAVRE AND CUT BANK.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND CHILL ADVISORY MEANS THAT VERY COLD AIR AND STRONG WINDS
WILL COMBINE TO GENERATE LOW WIND CHILLS. THIS WILL RESULT IN
FROST BITE AND LEAD TO HYPOTHERMIA IF PRECAUTIONS ARE NOT TAKEN.
IF YOU MUST VENTURE OUTDOORS...MAKE SURE YOU WEAR PROPER WINTER
CLOTHING.

&&

$$

MTZ008-012-014-015-050>055-180500-
/O.CON.KTFX.WS.A.0002.120118T1200Z-120120T1200Z/
BEAVERHEAD-CASCADE-CENTRAL AND SOUTHERN LEWIS AND CLARK-MADISON-
JUDITH BASIN-FERGUS-JEFFERSON-BROADWATER-MEAGHER-GALLATIN-
INCLUDING THE FOLLOWING LOCATIONS...BIG HOLE PASS...
CHIEF JOSEPH PASS...DILLON...MONIDA PASS...GREAT FALLS...
KINGS HILL PASS...FLESHER PASS...HELENA...LINCOLN...
MACDONALD PASS...ROGERS PASS...ENNIS...NORRIS HILL...
RAYNOLDS PASS...TWIN BRIDGES...STANFORD...LEWISTOWN...
LEWISTOWN DIVIDE...BOULDER...BOULDER HILL...ELK PARK PASS...
HOMESTAKE PASS...WHITEHALL...TOWNSEND...WHITE SULPHUR SPRINGS...
BATTLE RIDGE PASS...BOZEMAN...BOZEMAN PASS...TARGHEE PASS...
WEST YELLOWSTONE
959 AM MST TUE JAN 17 2012

...WINTER STORM WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH
LATE THURSDAY NIGHT...

A WINTER STORM WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH
LATE THURSDAY NIGHT. 

* TIMING AND MAIN IMPACT: A PRO-LONGED PERIOD OF SNOW...HEAVY AT
  TIMES...WILL BE POSSIBLE OVER PORTIONS OF NORTH CENTRAL AND
  SOUTHWEST MONTANA BEGINNING LATE TONIGHT AND THEN CONTINUING
  INTO THURSDAY NIGHT.

* SNOW ACCUMULATIONS: SNOWFALL RATES WILL GENERALLY BE LIGHT BUT
  WILL PERSIST FOR AN EXTENDED PERIOD...RESULTING IN TOTAL SNOW
  ACCUMULATIONS OF 6 TO 8 INCHES AT LOWER ELEVATIONS AND 1 TO 2
  FEET IN THE MOUNTAINS.

* WINDS AND VISIBILITY: WINDS AND FOG ACCOMPANYING THE SNOW 
  WILL REDUCE LOCAL VISIBILITIES TO LESS THAN ONE HALF MILE AT 
  TIMES.

* OTHER IMPACTS: EXPECT ROADS TO BECOME SNOW COVERED AND
  ICY...CREATING HAZARDOUS TRAVEL CONDITIONS.

* LOCATIONS AFFECTED INCLUDE: MUCH OF NORTH CENTRAL AND SOUTHWEST
  MONTANA.

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.

&&

$$

487 
WWUS45 KTFX 172139
WSWTFX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE GREAT FALLS MT
239 PM MST TUE JAN 17 2012

MTZ011-047-180530-
/O.CAN.KTFX.WS.A.0002.120118T1200Z-120120T1200Z/
/O.CON.KTFX.WC.Y.0001.000000T0000Z-120118T1500Z/
HILL-BLAINE-
INCLUDING THE FOLLOWING LOCATIONS...HAVRE...CHINOOK
239 PM MST TUE JAN 17 2012

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 8 AM MST
WEDNESDAY...
...WINTER STORM WATCH IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN GREAT FALLS HAS CANCELLED THE
WINTER STORM WATCH. A WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL
8 AM MST WEDNESDAY. 

* TIMING AND MAIN IMPACT: VERY COLD TEMPERATURES WILL COMBINE
  WITH WINDS OF 10 TO 15 MPH TO CREATE WIND CHILLS OF 25 TO 35
  BELOW ZERO THROUGH MID MORNING ON WEDNESDAY.

* WIND CHILL IMPACTS: WITH WIND CHILL VALUES NEAR 30 BELOW... 
  FROSTBITE CAN OCCUR IN LESS THAN 30 MINUTES.

* WINTER STORM WARNING CANCELLED: PERIODS OF LIGHT SNOW ARE
  EXPECTED AT TIMES FROM WEDNESDAY THROUGH FRIDAY...BUT HEAVY SNOW
  IS NO LONGER EXPECTED. THEREFORE THE WINTER STORM WARNING HAS
  BEEN CANCELLED.

* LOCATIONS AFFECTED INCLUDE: CHINOOK AND HAVRE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND CHILL ADVISORY MEANS THAT VERY COLD AIR AND STRONG WINDS
WILL COMBINE TO GENERATE LOW WIND CHILLS. THIS WILL RESULT IN
FROST BITE AND LEAD TO HYPOTHERMIA IF PRECAUTIONS ARE NOT TAKEN.
IF YOU MUST VENTURE OUTDOORS...MAKE SURE YOU WEAR PROPER WINTER
CLOTHING.

&&

$$

MTZ012-014-050-054-180530-
/O.UPG.KTFX.WS.A.0002.120118T1200Z-120120T1200Z/
/O.NEW.KTFX.WW.Y.0003.120118T1200Z-120120T1100Z/
/O.EXB.KTFX.WS.W.0002.120118T1200Z-120120T1100Z/
CASCADE-CENTRAL AND SOUTHERN LEWIS AND CLARK-JUDITH BASIN-MEAGHER-
INCLUDING THE FOLLOWING LOCATIONS...GREAT FALLS...
KINGS HILL PASS...FLESHER PASS...HELENA...LINCOLN...
MACDONALD PASS...ROGERS PASS...STANFORD...WHITE SULPHUR SPRINGS
239 PM MST TUE JAN 17 2012

...WINTER WEATHER ADVISORY IN EFFECT FROM 5 AM WEDNESDAY TO 4 AM
MST FRIDAY FOR ELEVATIONS BELOW 5000 FEET...
...WINTER STORM WARNING IN EFFECT FROM 5 AM WEDNESDAY TO 4 AM MST
FRIDAY FOR ELEVATIONS ABOVE 5000 FEET...

THE NATIONAL WEATHER SERVICE IN GREAT FALLS HAS ISSUED A WINTER
STORM WARNING FOR ELEVATIONS ABOVE 5000 FEET FOR HEAVY
SNOW...WHICH IS IN EFFECT FROM 5 AM WEDNESDAY TO 4 AM MST FRIDAY.
A WINTER WEATHER ADVISORY FOR ELEVATIONS BELOW 5000 FEET HAS ALSO
BEEN ISSUED. THIS WINTER WEATHER ADVISORY FOR ELEVATIONS BELOW
5000 FEET FOR SNOW IS IN EFFECT FROM 5 AM WEDNESDAY TO 4 AM MST
FRIDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT.

* TIMING AND MAIN IMPACT: A PRO-LONGED PERIOD OF SNOW...HEAVY AT
  TIMES...WILL BE POSSIBLE OVER PORTIONS OF CENTRAL MONTANA
  BEGINNING LATE TONIGHT AND THEN CONTINUING INTO THURSDAY NIGHT.

* SNOW ACCUMULATIONS: SNOWFALL RATES WILL GENERALLY BE LIGHT BUT
  WILL PERSIST FOR AN EXTENDED PERIOD...RESULTING IN TOTAL SNOW
  ACCUMULATIONS OF 6 TO 9 INCHES AT LOWER ELEVATIONS AND 10 TO 
  16 INCHES IN THE MOUNTAINS.

* WINDS AND VISIBILITY: WINDS AND FOG ACCOMPANYING THE SNOW 
  WILL REDUCE LOCAL VISIBILITIES TO LESS THAN ONE HALF MILE AT 
  TIMES.

* OTHER IMPACTS: EXPECT ROADS TO BECOME SNOW COVERED AND ICY... 
  CREATING HAZARDOUS TRAVEL CONDITIONS.

* LOCATIONS AFFECTED INCLUDE: WHITE SULPHUR SPRINGS...
  STANFORD...GREAT FALLS...KINGS HILL PASS...FLESHER PASS...
  HELENA...LINCOLN...MACDONALD PASS...ROGERS PASS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING.  SIGNIFICANT AMOUNTS OF
SNOW ARE FORECAST THAT WILL MAKE TRAVEL HAZARDOUS. IF YOU
MUST...KEEP AN EXTRA FLASHLIGHT...FOOD...AND WATER IN YOUR VEHICLE
IN CASE OF AN EMERGENCY.

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW
WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW
COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE
DRIVING.

FOR SPECIFIC ROAD AND TRAVEL CONDITIONS IN MONTANA...DIAL 5 1 1.

&&

$$

MTZ009-048-180530-
/O.CON.KTFX.WS.W.0002.000000T0000Z-120120T1100Z/
NORTHERN ROCKY MOUNTAIN FRONT-SOUTHERN ROCKY MOUNTAIN FRONT-
INCLUDING THE FOLLOWING LOCATIONS...BROWNING...MARIAS PASS...
CHOTEAU
239 PM MST TUE JAN 17 2012

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 AM MST FRIDAY...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 AM MST FRIDAY. 

* TIMING AND MAIN IMPACT: PERIODS OF SNOW...HEAVY TIMES WILL 
  CONTINUE INTO THURSDAY NIGHT. HIGHWAY 2 ON MARIAS PASS...AND 
  HIGHWAY 89 FROM BROWNING TO BABB WILL BE GREATLY IMPACTED. 

* SNOW ACCUMULATIONS: TOTAL SNOW ACCUMULATIONS OF 8 TO 14 
  INCHES ARE LIKELY OVER THE PLAINS...AND 14 TO 28 INCHES ARE 
  LIKELY OVER THE MOUNTAINS.

* VISIBILITY: VISIBILITIES WILL BE REDUCED TO LESS THAN ONE 
  HALF MILE IN HEAVY SNOW.

* OTHER IMPACTS: ROADS WILL BE SNOW COVERED AND ICY. WIND 
  CHILLS COULD FALL AS LOW AS 30 DEGREES BELOW ZERO.

* LOCATIONS AFFECTED INCLUDE: CHOTEAU...BROWNING...MARIAS PASS

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW
ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN
EMERGENCY. IF YOU MUST...KEEP AN EXTRA FLASHLIGHT...FOOD...AND
WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY.

FOR SPECIFIC ROAD AND TRAVEL CONDITIONS IN MONTANA...DIAL 5 1 1.

&&

$$

MTZ010-013-044>046-049-180530-
/O.UPG.KTFX.WS.A.0002.120118T1200Z-120120T1200Z/
/O.NEW.KTFX.WW.Y.0003.120118T1900Z-120120T1100Z/
/O.CON.KTFX.WC.Y.0001.000000T0000Z-120118T1500Z/
EASTERN GLACIER-CHOUTEAU-TOOLE-LIBERTY-EASTERN PONDERA-
EASTERN TETON-
INCLUDING THE FOLLOWING LOCATIONS...CUT BANK...BIG SANDY...
FORT BENTON...SHELBY...CHESTER...CONRAD...FAIRFIELD
239 PM MST TUE JAN 17 2012

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 8 AM MST
WEDNESDAY...
...WINTER WEATHER ADVISORY IN EFFECT FROM NOON WEDNESDAY TO 4 AM
MST FRIDAY...

THE NATIONAL WEATHER SERVICE IN GREAT FALLS HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT FROM NOON
WEDNESDAY TO 4 AM MST FRIDAY. THE WINTER STORM WATCH IS NO LONGER
IN EFFECT. A WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 8 AM MST
WEDNESDAY.

* TIMING AND MAIN IMPACT: VERY COLD TEMPERATURES WILL COMBINE
  WITH WINDS OF 10 TO 15 MPH TO CREATE WIND CHILLS OF 25 TO 35
  BELOW ZERO THROUGH MID MORNING ON WEDNESDAY.

* WIND CHILL IMPACTS: WITH WIND CHILL VALUES NEAR 30 BELOW... 
  FROSTBITE CAN OCCUR IN LESS THAN 30 MINUTES.

* SNOW ACCUMULATIONS: SNOWFALL RATES WILL GENERALLY BE LIGHT BUT
  WILL PERSIST FOR AN EXTENDED PERIOD...RESULTING IN TOTAL SNOW
  ACCUMULATIONS OF 4 TO 8 INCHES AT LOWER ELEVATIONS...AND AROUND
  12 INCHES IN THE MOUNTAINS. OCCASIONAL PERIODS OF MODERATE TO
  HEAVY SNOW ARE POSSIBLE DURING THIS EVENT.

* SNOW IMPACTS: EXPECT UNTREATED ROADS TO BE SNOW COVERED AND 
  SLIPPERY.

* LOCATIONS AFFECTED INCLUDE: FAIRFIELD...CHESTER...SHELBY...
  BIG SANDY...FORT BENTON...CONRAD...CUT BANK 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND CHILL ADVISORY MEANS THAT VERY COLD AIR AND STRONG WINDS
WILL COMBINE TO GENERATE LOW WIND CHILLS. THIS WILL RESULT IN
FROST BITE AND LEAD TO HYPOTHERMIA IF PRECAUTIONS ARE NOT TAKEN.
IF YOU MUST VENTURE OUTDOORS...MAKE SURE YOU WEAR PROPER WINTER
CLOTHING.

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW
WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW
COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE
DRIVING.

FOR SPECIFIC ROAD AND TRAVEL CONDITIONS IN MONTANA...DIAL 5 1 1.

$$

MTZ008-015-052-053-055-180530-
/O.UPG.KTFX.WS.A.0002.120118T1200Z-120120T1200Z/
/O.NEW.KTFX.WW.Y.0003.120118T1200Z-120120T1100Z/
BEAVERHEAD-MADISON-JEFFERSON-BROADWATER-GALLATIN-
INCLUDING THE FOLLOWING LOCATIONS...BIG HOLE PASS...
CHIEF JOSEPH PASS...DILLON...MONIDA PASS...ENNIS...NORRIS HILL...
RAYNOLDS PASS...TWIN BRIDGES...BOULDER...BOULDER HILL...
ELK PARK PASS...HOMESTAKE PASS...WHITEHALL...TOWNSEND...
BATTLE RIDGE PASS...BOZEMAN...BOZEMAN PASS...TARGHEE PASS...
WEST YELLOWSTONE
239 PM MST TUE JAN 17 2012

...WINTER WEATHER ADVISORY IN EFFECT FROM 5 AM WEDNESDAY TO 4 AM
MST FRIDAY...

THE NATIONAL WEATHER SERVICE IN GREAT FALLS HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT FROM 5 AM
WEDNESDAY TO 4 AM MST FRIDAY. THE WINTER STORM WATCH IS NO LONGER
IN EFFECT.

* TIMING AND MAIN IMPACT: A PRO-LONGED PERIOD OF SNOW...MODERATE
  AT TIMES...WILL BE POSSIBLE OVER PORTIONS OF SOUTHWEST MONTANA
  BEGINNING LATE TONIGHT AND THEN CONTINUING INTO THURSDAY NIGHT.

* SNOW ACCUMULATIONS: SNOWFALL RATES WILL GENERALLY BE LIGHT BUT
  WILL PERSIST FOR AN EXTENDED PERIOD...RESULTING IN TOTAL SNOW
  ACCUMULATIONS OF 4 TO 7 INCHES AT LOWER ELEVATIONS AND AROUND
  12 INCHES IN THE MOUNTAINS.

* WINDS AND VISIBILITY: WINDS AND FOG ACCOMPANYING THE SNOW 
  WILL REDUCE LOCAL VISIBILITIES TO LESS THAN ONE HALF MILE AT 
  TIMES.

* OTHER IMPACTS: EXPECT ROADS TO BECOME SNOW COVERED AND ICY... 
  CREATING HAZARDOUS TRAVEL CONDITIONS.

* LOCATIONS AFFECTED INCLUDE: BATTLE RIDGE PASS...BOZEMAN...
  BOZEMAN PASS...TARGHEE PASS...WEST YELLOWSTONE...BOULDER...
  BOULDER HILL...ELK PARK PASS...HOMESTAKE PASS...WHITEHALL...
  TOWNSEND...BIG HOLE PASS...CHIEF JOSEPH PASS...DILLON... MONIDA
  PASS...ENNIS...NORRIS HILL...RAYNOLDS PASS... TWIN BRIDGES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW
WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW
COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE
DRIVING.

FOR SPECIFIC ROAD AND TRAVEL CONDITIONS IN MONTANA...DIAL 5 1 1.

&&

$$

MTZ051-180530-
/O.UPG.KTFX.WS.A.0002.120118T1200Z-120120T1200Z/
/O.NEW.KTFX.WW.Y.0003.120118T1900Z-120120T1100Z/
FERGUS-
INCLUDING THE FOLLOWING LOCATIONS...LEWISTOWN...LEWISTOWN DIVIDE
239 PM MST TUE JAN 17 2012

...WINTER WEATHER ADVISORY IN EFFECT FROM NOON WEDNESDAY TO 4 AM
MST FRIDAY...

THE NATIONAL WEATHER SERVICE IN GREAT FALLS HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT FROM NOON
WEDNESDAY TO 4 AM MST FRIDAY. THE WINTER STORM WATCH IS NO LONGER
IN EFFECT.

* TIMING AND MAIN IMPACT: A PRO-LONGED PERIOD OF SNOW...MODERATE
  AT TIMES...WILL BE POSSIBLE OVER PORTIONS OF FERGUS COUNTY
  BEGINNING LATE TONIGHT AND THEN CONTINUING INTO THURSDAY NIGHT.

* SNOW ACCUMULATIONS: SNOWFALL RATES WILL GENERALLY BE LIGHT BUT
  WILL PERSIST FOR AN EXTENDED PERIOD...RESULTING IN TOTAL SNOW
  ACCUMULATIONS OF 4 TO 8 INCHES AT LOWER ELEVATIONS AND AROUND
  12 INCHES IN THE MOUNTAINS.

* WINDS AND VISIBILITY: WINDS AND FOG ACCOMPANYING THE SNOW 
  WILL REDUCE LOCAL VISIBILITIES TO LESS THAN ONE HALF MILE AT 
  TIMES.

* OTHER IMPACTS: EXPECT ROADS TO BECOME SNOW COVERED AND ICY... 
  CREATING HAZARDOUS TRAVEL CONDITIONS.

* LOCATIONS AFFECTED INCLUDE: LEWISTOWN...LEWISTOWN DIVIDE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW
WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW
COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE
DRIVING.

FOR SPECIFIC ROAD AND TRAVEL CONDITIONS IN MONTANA...DIAL 5 1 1.

&&

$$

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GREAT FALLS MT
1030 PM MST MON JAN 16 2012

UPDATED AVIATION

.UPDATE...
HAVE DROPPED THE MENTION OF SNOW FOR MOST OF CENTRAL MONTANA AND
THE EASTERN PORTIONS OF SOUTHWEST MONTANA FOR THE REST OF THIS
EVENING BASED ON RADAR/SATELLITE IMAGERY AND SURFACE OBSERVATIONS.
ALSO BACKED OFF ON THE INHERITED THREAT OF SNOW IN THESE SAME
AREAS FOR LATE TONIGHT. AS FOR TEMPERATURES RAISED SOME LOWS FOR
TONIGHT OVER SOUTHWEST MONTANA WITH INCREASING SKY COVER THE REST
OF TONIGHT. ALSO LOWERED THEM NEAR THE CANADIAN BORDER BASED ON
EARLY EVENING TRENDS. AS FOR HIGHLIGHTS HAVE HIGH CONFIDENCE IN
WINTER STORM CONDITIONS FOR THE ROCKY MOUNTAIN FRONT BEGINNING
LATE TONIGHT. ALSO WAS CONSIDERING A WIND CHILL ADVISORY IN THE
FAR NORTH FOR AT LEAST TONIGHT BUT WINDS HAVE DROPPED OFF. WILL
NEED TO REVISIT WIND CHILLS FOR TUESDAY NIGHT. BLANK

&&

.AVIATION...
UPDATED 0600Z.
A COLD FRONT WILL DESCEND FROM CANADA AND BRING LIGHT TO AT TIMES
MODERATE SNOW TO AREAS ALONG THE HI-LINE INCLUDING KCTB AND KHVR.
MVFR AND OCCASIONAL IFR CONDITIONS ARE POSSIBLE FOR THESE LOCATIONS
AND WIDESPREAD MOUNTAIN OBSCURATION IS ALSO EXPECTED THROUGH
TUESDAY. PATCHY FOG IS ALSO POSSIBLE AT KHLN AND ADDED VCFG THROUGH
TONIGHT. WINDS WILL SHIFT TO THE NORTHEAST BEHIND THE FRONT FOR KCTB
AND KHVR AND ELSEWHERE REMAIN LIGHT AND VARIABLE. THE FRONT WILL
APPROACH CENTRAL MONTANA TOWARDS THE END OF THE CURRENT FORECAST
PERIOD WITH LIGHT SNOW DEVELOPING FROM KGTF TO KLWT BY 06Z
WEDNESDAY. MLV

&&

.PREV DISCUSSION...
/ISSUED 438 PM MST MON JAN 16 2012/
TONIGHT THROUGH WEDNESDAY...OVERALL...AN ACTIVE WEATHER PATTERN
WILL RESIDE OVER THE REGION FOR THE NEXT FEW DAYS. EXPECT
SCATTERED SHOWERS OVER THE ROCKY MOUNTAIN FRONT...TO BECOME MORE
WIDESPREAD AND HEAVIER TOWARDS MORNING. THERE IS THE POTENTIAL FOR
HEAVY SNOW OVER THIS REGION AT TIMES THEN FROM TUESDAY THROUGH
THURSDAY NIGHT...SO THIS REGION HAS BEEN PLACED UNDER A WINTER
STORM WATCH. ELSEWHERE OVER THE REGION TONIGHT...EXPECT SOME
PASSING EVENING FLURRIES...WITH ISOLATED SNOW SHOWERS AFTER
MIDNIGHT...MAINLY OVER THE NORTHERN TIER OF THE REGION. FOR
TUESDAY...EXPECT THE SNOW TO CONTINUE ALONG THE FRONT
RANGE...WHILE THE SNOW SHOWERS START TO SPREAD A BIT FURTHER
EASTWARD OVER NORTH CENTRAL MONTANA DURING THE AFTERNOON HOURS.
TEMPERATURES WILL GENERALLY REMAIN COLD. FOR TUESDAY NIGHT THE
SNOW BECOMES LIKELY ACROSS MUCH OF NORTH CENTRAL/SOUTHWEST MONTANA
AS THE MAIN WARM FRONT BEGINS TO DEVELOP OVER SOUTHWEST MONTANA.
THIS WARM FRONT WILL BEGIN TO SLOWLY PUSH NORTHWARD
WEDNESDAY...AND LOCATIONS NEAR THE MAIN FRONTAL BOUNDARY SHOULD
RECEIVE THE HEAVIEST SNOWFALL. TEMPERATURES WILL REMAIN COLD OVER
MUCH OF NORTH CENTRAL MONTANA...AS SEASONABLE TEMPERATURES START
TO MOVE BACK INTO FAR SOUTHWEST MONTANA. BRUSDA

WEDNESDAY NIGHT THROUGH MONDAY NIGHT...MEDIUM RANGE MODELS AGREE
THAT THE BITTERLY COLD AIRMASS WILL BEGIN TO MODERATE WEDNESDAY
NIGHT INTO THURSDAY AS THE FLOW ALOFT BECOMES MORE WESTERLY.
HOWEVER...THERE ARE STILL DIFFERENCES AMONG THE MODELS IN THE EXACT
POSITIONING OF THE SURFACE BOUNDARY DIVIDING THE WARM AND COLD
AIRMASSES...WHICH IS RESULTING IN MODEL FORECAST TEMPERATURE
DIFFERENCES OF GENERALLY 10 TO 20 DEGREES THROUGH THE END OF THIS
WEEK. THEREFORE...AM ELECTING TO GO WITH MORE OF A GRADUAL MOVEMENT
OF THE BOUNDARY THROUGH THE PERIOD...RESULTING IN A GRADUAL WARMING
OF TEMPERATURES. HOWEVER...SNOW WILL REMAIN LIKELY FOR THE WEDNESDAY
NIGHT AND THURSDAY PERIODS DUE TO CONTINUED SIGNIFICANT MOISTURE
OVERRUNNING THE COLD AIRMASS STILL IN PLACE. AS HAS BEEN MENTIONED
IN THE HAZARDOUS WEATHER OUTLOOK...WINTER WEATHER HIGHLIGHTS MAY BE
NECESSARY FOR THIS EVENT...AS SNOWFALL WILL BE LIGHT BUT PERSISTENT.
THE SURFACE BOUNDARY WILL LIFT NORTHEAST DURING THIS
PERIOD...ALLOWING TEMPERATURES IN SOUTHWEST MONTANA TO WARM TO ABOVE
NORMAL...CAUSING VALLEY PRECIPITATION TO LIKELY BE A RAIN/SNOW MIX.
CENTRAL MONTANA (INCLUDING GREAT FALLS AND LEWISTOWN) WILL LIKELY
ONLY REACH NEAR NORMAL.

AS THE FLOW ALOFT BECOMES MORE WESTERLY FRIDAY AND SATURDAY...THE
BOUNDARY WILL CONTINUE TO MOVE NORTHEAST...ALLOWING ABOVE NORMAL
TEMPERATURES TO REACH INTO CENTRAL MONTANA WITH NEAR NORMAL
TEMPERATURES AS FAR NORTH AS THE CANADIAN BORDER. THERE WILL LESS
OF A THREAT OF OVERRUNNING PRECIPITATION AS THE SURFACE BOUNDARY
LIFTS NORTH...BUT A DISTURBANCE IN THE FLOW ALOFT WILL CONTINUE
MOUNTAIN SHOWERS AND KEEP A CHANCE OF SHOWERS OVER THE PLAINS.
HOWEVER...STRONG WESTERLY WINDS BLOWING OVER RIDGE TOPS WILL CAUSE
AREAS OF BLOWING SNOW THERE. THE MORE PROGRESSIVE WESTERLY FLOW
ALOFT WILL BECOME LESS MOIST OVER THE WEEKEND AND KEEP
TEMPERATURES CLOSE TO NORMAL...BUT DISTURBANCES IN THE FLOW WILL
GENERALLY KEEP AT LEAST A SLIGHT CHANCE OF SHOWERS AROUND THROUGH
THE REMAINDER OF THE PERIOD. COULSTON

&&

.PRELIMINARY POINT TEMPS/POPS...
GTF  -8  13 -10  -2 /  10  30  80  90
CTB -21  -6 -21 -10 /  40  70  80  90
HLN   2  21   8  16 /  10  30  70  90
BZN  -9  22  10  21 /  10  20  70  80
WEY  -8  11   3  20 /  20  40  60  80
DLN   4  18  11  21 /  10  20  60  80
HVR -16   2 -18  -9 /  20  40  60  60
LWT  -8  19  -8   0 /  10  20  70  80

&&

.TFX WATCHES/WARNINGS/ADVISORIES...
WINTER STORM WARNING FROM 5 AM TUESDAY TO 4 AM MST FRIDAY
NORTHERN ROCKY MOUNTAIN FRONT...SOUTHERN ROCKY MOUNTAIN FRONT.

&&

WEATHER.GOV/GREATFALLS

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GREAT FALLS MT
946 PM MST MON JAN 16 2012

MTZ009-048-180500-
NORTHERN ROCKY MOUNTAIN FRONT-SOUTHERN ROCKY MOUNTAIN FRONT-
946 PM MST MON JAN 16 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTH CENTRAL
MONTANA.

.DAY ONE...TONIGHT

THERE IS A LOW PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

A WINTER STORM WARNING IS IN EFFECT FROM TUESDAY MORNING THROUGH
THURSDAY NIGHT.

.SPOTTER INFORMATION STATEMENT...

REPORTS OF SNOWFALL...ICE ACCUMULATION OR SIGNIFICANT
RESTRICTIONS TO VISIBILITY WOULD BE GREATLY APPRECIATED.

MTZ008-010>015-044>047-049>055-180500-
BEAVERHEAD-EASTERN GLACIER-HILL-CASCADE-CHOUTEAU-
CENTRAL AND SOUTHERN LEWIS AND CLARK-MADISON-TOOLE-LIBERTY-
EASTERN PONDERA-BLAINE-EASTERN TETON-JUDITH BASIN-FERGUS-
JEFFERSON-BROADWATER-MEAGHER-GALLATIN-
946 PM MST MON JAN 16 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL
MONTANA...NORTH CENTRAL MONTANA AND SOUTHWEST MONTANA.

.DAY ONE...TONIGHT

THERE IS A LOW PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

A WEATHER SYSTEM ARRIVING WEDNESDAY WILL BRING THE POSSIBILITY OF
HEAVIER SNOWFALL OCCURRING THROUGH THURSDAY NIGHT. WINTER WEATHER
HEADLINES COULD BE NECESSARY DURING THIS PERIOD.

.SPOTTER INFORMATION STATEMENT...

REPORTS OF SNOWFALL...ICE ACCUMULATION OR SIGNIFICANT
RESTRICTIONS TO VISIBILITY WOULD BE GREATLY APPRECIATED.