Blizzard Warning 6, NWS Missoula, MT

000 
WWUS45 KMSO 121857
WSWMSO

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE MISSOULA MT
1157 AM MST FRI DEC 12 2008

.A STRONG WINTER STORM WILL IMPACT THE NORTHERN ROCKIES OVER THE
WEEKEND. INITIALLY...SNOW WILL DEVELOP OVER THE MOUNTAINS OF
NORTHWEST MONTANA THIS AFTERNOON AS A COLD FRONT APPROACHES FROM
THE WEST. THIS FRONT WILL PUSH THROUGH IDAHO AND WESTERN MONTANA
PROVIDING INCREASED PRECIPITATION...FOLLOWED BY COOLER POST-
FRONTAL AIR TONIGHT. AT THE SAME TIME...ARCTIC AIR POISED OVER
THE CANADIAN ROCKIES WILL BEGIN ITS PUSH SOUTHWARD INTO NORTHWEST
MONTANA. BLIZZARD CONDITIONS ARE EXPECTED TO DEVELOP IN GLACIER
NATIONAL PARK AND PORTIONS OF THE FLATHEAD VALLEY BY LATE TONIGHT.

BY SATURDAY...A MAJOR SURGE OF ARCTIC AIR WILL PUNCH INTO WESTERN
MONTANA. THIS FRIGID AIR MASS WILL BE USHERED IN BY STRONG
NORTHEAST WINDS CAUSING BLOWING AND DRIFTING OF SNOW RESULTING IN
LOCAL WHITEOUT CONDITIONS...PLUS BITTERLY COLD WIND CHILLS. THE
BULK OF THE ACCUMULATING SNOW MAY BE CONFINED TO THE IDAHO
PANHANDLE WHERE MOISTURE WILL CONTINUE TO BE FORCED OVER A COLDER
DOME OF AIR TO THE EAST.

A STRONG EASTERLY SURFACE PRESSURE GRADIENT WILL MAINTAIN THE
INFLUX OF ARCTIC AIR OVER WESTERN MONTANA AND PORTIONS OF NORTH
CENTRAL IDAHO THROUGH TUESDAY WITH VERY COLD TEMPERATURES AND
DANGEROUS WIND CHILLS HIGHLIGHTING THE FORECAST.

MTZ006-007-043-130500-
/O.UPG.KMSO.WS.A.0019.081213T0600Z-081214T1200Z/
/O.EXB.KMSO.WS.W.0015.081213T0600Z-081214T1200Z/
BITTERROOT/SAPPHIRE MOUNTAINS-BUTTE/BLACKFOOT REGION-
POTOMAC/SEELEY LAKE REGION-
1157 AM MST FRI DEC 12 2008

...WINTER STORM WARNING IN EFFECT FROM 11 PM THIS EVENING TO 5 AM
MST SUNDAY...

THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WINTER
STORM WARNING FOR SNOW...WIND...AND WIND CHILLS...WHICH IS IN
EFFECT FROM 11 PM THIS EVENING TO 5 AM MST SUNDAY. THE WINTER
STORM WATCH IS NO LONGER IN EFFECT.

SNOW IS EXPECTED TO DEVELOP TONIGHT...BECOMING MODERATE TO HEAVY
AT TIMES. IN ADDITION TO ACCUMULATING SNOW...COLD AIR WILL SURGE
ACROSS THE CONTINENTAL DIVIDE CREATING AREAS OF BLOWING AND
DRIFTING SNOW ON SATURDAY. ALTHOUGH SNOW IS EXPECTED TO TAPER OFF
SATURDAY NIGHT...STRONG EAST TO NORTHEAST WINDS AND VERY COLD
TEMPERATURES WILL COMBINE FOR DANGEROUS WIND CHILLS.

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW AND BLOWING
SNOW ARE EXPECTED. STRONG WINDS AND DANGEROUS WIND CHILLS ARE
ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE.

$$

IDZ006-130500-
/O.EXT.KMSO.WS.W.0015.081213T0000Z-081214T1800Z/
SOUTHERN CLEARWATER MOUNTAINS-
1057 AM PST FRI DEC 12 2008

...WINTER STORM WARNING NOW IN EFFECT FROM 4 PM THIS AFTERNOON TO
10 AM PST SUNDAY...

THE WINTER STORM WARNING IS NOW IN EFFECT FROM 4 PM THIS
AFTERNOON TO 10 AM PST SUNDAY. 

SNOW WILL DEVELOP THIS EVENING...BECOMING MODERATE TO HEAVY
OVERNIGHT. SNOW IS EXPECTED TO CONTINUE INTO SUNDAY WITH TOTAL
ACCUMULATIONS OF UP TO 2 FEET POSSIBLE OVER THE HIGHER TERRAIN
AND 5 TO 8 INCHES EXPECTED IN THE VALLEYS. ADDITIONALLY...
NORTHEAST TO EAST WINDS AT 15 TO 20 MPH ARE EXPECTED TO DEVELOP
BY SATURDAY NIGHT AS ARCTIC AIR PUSHES WESTWARD INTO THE AREA.
THIS WILL CREATE AREAS OF BLOWING AND DRIFTING SNOW WITH LOCAL
WHITEOUT CONDITIONS POSSIBLE.

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW AND BLOWING
SNOW ARE EXPECTED. STRONG WINDS AND WIND CHILLS ARE ALSO
POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE.

$$

MTZ003-130500-
/O.CON.KMSO.BZ.W.0006.081213T0600Z-081214T0000Z/
FLATHEAD/MISSION VALLEYS-
1157 AM MST FRI DEC 12 2008

...BLIZZARD WARNING REMAINS IN EFFECT FROM 11 PM THIS EVENING TO
5 PM MST SATURDAY...

A BLIZZARD WARNING REMAINS IN EFFECT FROM 11 PM THIS EVENING TO
5 PM MST SATURDAY. 

BLIZZARD CONDITIONS WITH VISIBILITIES LOWERING TO 1/4
MILE ARE EXPECTED MAINLY NORTH OF FLATHEAD LAKE AND ALONG HIGHWAY
2 THROUGH BAD ROCK CANYON LATE THIS EVENING THROUGH SATURDAY.

SNOW IS EXPECTED TO DEVELOP THIS AFTERNOON...BECOMING MODERATE TO
HEAVY AT TIMES OVERNIGHT. IN ADDITION TO ACCUMULATING SNOW...COLD
AIR WILL SURGE ACROSS THE CONTINENTAL DIVIDE CREATING NORTHEAST
WINDS AT 25 TO 35 MPH WITH GUSTS TO 40 MPH POSSIBLE. 

LOCATIONS FROM FLATHEAD LAKE SOUTH THROUGH THE MISSION VALLEY
WILL EXPERIENCE ACCUMULATING SNOW WITH LOCAL WHITE OUT CONDITIONS
POSSIBLE. HOWEVER...WINDS ARE NOT EXPECTED TO BE AS STRONG AND
THUS WIDESPREAD BLIZZARD CONDITIONS ARE NOT EXPECTED.

STORM TOTAL SNOWFALL AMOUNTS ARE EXPECTED TO BE BETWEEN 15 AND 20
INCHES IN HIGHER ELEVATIONS WHILE VALLEY LOCATIONS WILL RECEIVE 6
TO 8 INCHES THROUGH SUNDAY.

SNOW WILL BEGIN TO TAPER OFF SATURDAY NIGHT...THOUGH BITTERLY
COLD TEMPERATURES AND STRONG GUSTY WINDS WILL CONTINUE THROUGH THE
DAY SUNDAY. THIS COMBINATION WILL RESULT IN DANGEROUS WIND CHILLS.

A BLIZZARD WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE
EXPECTED OR OCCURRING. FALLING AND BLOWING SNOW WITH STRONG WINDS
AND POOR VISIBILITIES ARE LIKELY. THIS WILL LEAD TO WHITEOUT
CONDITIONS...MAKING TRAVEL EXTREMELY DANGEROUS. DO NOT TRAVEL. IF
YOU MUST TRAVEL...HAVE A WINTER SURVIVAL KIT WITH YOU. IF YOU GET
STRANDED...STAY WITH YOUR VEHICLE.

$$

MTZ002-130500-
/O.CON.KMSO.BZ.W.0006.081213T0600Z-081214T0000Z/
WEST GLACIER REGION-
1157 AM MST FRI DEC 12 2008

...BLIZZARD WARNING REMAINS IN EFFECT FROM 11 PM THIS EVENING TO
5 PM MST SATURDAY...

A BLIZZARD WARNING REMAINS IN EFFECT FROM 11 PM THIS EVENING TO
5 PM MST SATURDAY. 

SNOW IS EXPECTED TO DEVELOP LATE THIS AFTERNOON...BECOMING
MODERATE TO HEAVY AT TIMES OVERNIGHT. IN ADDITION TO ACCUMULATING
SNOW...COLD AIR WILL SURGE ACROSS THE CONTINENTAL DIVIDE CREATING
NORTHEAST WINDS AT 25 TO 35 MPH WITH GUSTS TO 40 MPH POSSIBLE.
THE WINDS COUPLED WITH THE SNOW AND BLOWING SNOW WILL RESULT IN
BLIZZARD CONDITIONS WITH VISIBILITIES LOWERING TO 1/4 MILE...
MAINLY ALONG HIGHWAY 2 BETWEEN WEST GLACIER AND MARIAS PASS...AND
ALSO ALONG ROUTE 486 NORTH TO POLEBRIDGE. BLIZZARD CONDITIONS ARE
EXPECTED TO LAST INTO SATURDAY AFTERNOON. SNOW WILL THEN BEGIN TO
TAPER OFF OVERNIGHT...THOUGH BITTERLY COLD TEMPERATURES AND
STRONG GUSTY WINDS WILL CONTINUE THROUGH THE DAY SUNDAY. THIS
COMBINATION WILL RESULT IN DANGEROUS WIND CHILLS. STORM TOTAL
SNOWFALL AMOUNTS ARE EXPECTED TO BE BETWEEN 12 AND 18 INCHES IN
THE HIGHER ELEVATIONS WHILE VALLEY LOCATIONS WILL RECEIVE 6 TO
8 INCHES THROUGH SUNDAY.

A BLIZZARD WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE
EXPECTED OR OCCURRING. FALLING AND BLOWING SNOW WITH STRONG WINDS
AND POOR VISIBILITIES ARE LIKELY. THIS WILL LEAD TO WHITEOUT
CONDITIONS...MAKING TRAVEL EXTREMELY DANGEROUS. DO NOT TRAVEL. IF
YOU MUST TRAVEL...HAVE A WINTER SURVIVAL KIT WITH YOU. IF YOU GET
STRANDED...STAY WITH YOUR VEHICLE.

$$

MTZ001-004-130500-
/O.CON.KMSO.WS.W.0015.081213T0000Z-081214T0000Z/
KOOTENAI/CABINET REGION-LOWER CLARK FORK REGION-
1157 AM MST FRI DEC 12 2008

...WINTER STORM WARNING REMAINS IN EFFECT FROM 5 PM THIS
AFTERNOON TO 5 PM MST SATURDAY...

A WINTER STORM WARNING REMAINS IN EFFECT FROM 5 PM THIS AFTERNOON
TO 5 PM MST SATURDAY. 

SNOW IS EXPECTED TO DEVELOP THIS AFTERNOON...BECOMING MODERATE TO
HEAVY AT TIMES IN THE EVENING AND OVERNIGHT. SNOW WILL CONTINUE
THOUGH GRADUALLY TAPER OFF THROUGH THE DAY SATURDAY. UP TO
20 INCHES OF TOTAL SNOWFALL IS LIKELY IN THE MOUNTAINS OF
NORTHWEST MONTANA...WHILE VALLEY LOCATIONS ARE EXPECTED TO
RECEIVE 6 TO 8 INCHES TOTAL SNOWFALL BY SATURDAY. IN ADDITION TO
ACCUMULATING SNOW...COLD AIR WILL SURGE ACROSS THE CONTINENTAL
DIVIDE CREATING LOCAL AREAS OF BLOWING AND DRIFTING SNOW. POOR
VISIBILITIES CAN BE EXPECTED IN AREAS OF BLOWING SNOW AND CAN
LEAD TO WHITEOUT CONDITIONS...MAKING TRAVEL DANGEROUS. AS SNOW
TAPERS OFF SATURDAY...LOOK FOR FALLING TEMPERATURES AND STRONG
WINDS RESULTING IN DANGEROUS WIND CHILLS THROUGH SUNDAY.

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW...
BLOWING SNOW...OR FREEZING RAIN ARE EXPECTED OR OCCURRING. STRONG
WINDS AND DANGEROUS WIND CHILLS ARE ALSO POSSIBLE.  THIS WILL
MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE.

$$

IDZ005-130500-
/O.CON.KMSO.WS.W.0015.081213T0000Z-081214T1800Z/
NORTHERN CLEARWATER MOUNTAINS-
1057 AM PST FRI DEC 12 2008

...WINTER STORM WARNING REMAINS IN EFFECT FROM 4 PM THIS
AFTERNOON TO 10 AM PST SUNDAY...

A WINTER STORM WARNING REMAINS IN EFFECT FROM 4 PM THIS AFTERNOON
TO 10 AM PST SUNDAY. 

SNOW WILL DEVELOP THIS AFTERNOON...BECOMING MODERATE TO HEAVY IN
THE EVENING AND OVERNIGHT. SNOW IS EXPECTED TO CONTINUE INTO
SUNDAY WITH TOTAL ACCUMULATIONS OF UP TO 2 FEET POSSIBLE OVER THE
HIGHER TERRAIN AND 5 TO 8 INCHES IN THE VALLEYS. ADDITIONALLY...
NORTHEAST TO EAST WINDS AT 15 TO 20 MPH ARE EXPECTED TO DEVELOP BY
SATURDAY NIGHT AS ARCTIC AIR PUSHES WESTWARD INTO THE AREA. THIS
WILL CREATE AREAS OF BLOWING AND DRIFTING SNOW WITH LOCAL WHITEOUT
CONDITIONS POSSIBLE.

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW...
BLOWING SNOW...OR FREEZING RAIN ARE EXPECTED OR OCCURRING. STRONG
WINDS AND DANGEROUS WIND CHILLS ARE ALSO POSSIBLE.  THIS WILL
MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE.

$$

MTZ005-130500-
/O.UPG.KMSO.WS.A.0019.081213T0600Z-081214T1200Z/
/O.NEW.KMSO.WW.Y.0017.081213T0600Z-081214T1200Z/
MISSOULA/BITTERROOT VALLEYS-
1157 AM MST FRI DEC 12 2008

...WINTER WEATHER ADVISORY IN EFFECT FROM 11 PM THIS EVENING TO
5 AM MST SUNDAY...

THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW...BLOWING SNOW...AND WIND CHILL...WHICH
IS IN EFFECT FROM 11 PM THIS EVENING TO 5 AM MST SUNDAY. THE
WINTER STORM WATCH IS NO LONGER IN EFFECT.

SNOW IS EXPECTED TO DEVELOP TONIGHT...POSSIBLE MODERATE TO HEAVY
IN INTENSITY FROM AROUND MIDNIGHT TO DAYBREAK. COLD AIR WILL
SURGE ACROSS THE CONTINENTAL DIVIDE CREATING AREAS OF BLOWING AND
DRIFTING SNOW ON SATURDAY. HOWEVER...THIS EASTERLY FLOW IS A DRIER
PATTERN FOR THE VALLEY SO THE SNOW SHOULD BEGIN TO TAPER OFF. THE
WEATHER CONCERN WILL THEN TRANSITION TO VERY COLD TEMPERATURES AND
DANGEROUS WIND CHILLS SATURDAY AFTERNOON AND ESPECIALLY SATURDAY
NIGHT.

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

$$

IDZ009-010-130500-
/O.CON.KMSO.WS.A.0019.081213T1200Z-081214T1200Z/
WESTERN LEMHI COUNTY-EASTERN LEMHI COUNTY-
1157 AM MST FRI DEC 12 2008

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

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

AN INCOMING PACIFIC WEATHER SYSTEM HAS THE POTENTIAL TO PRODUCE
MODERATE TO HEAVY SNOW ACCUMULATIONS IN LEMHI
COUNTY...PARTICULARLY FROM NORTH FORK TO LOST TRAIL PASS. LATE
SATURDAY AN ARCTIC AIR MASS WILL PUSH UP AGAINST THE CONTINENTAL
DIVIDE AND POSSIBLY SPILL INTO THE COUNTY AS WELL. HOWEVER...IT
NOW LOOKS LIKE IT WILL REMAIN ALONG THE NORTHERN AND EASTERN
BOUNDARIES. THIS SHOULD RESTRICT BLOWING SNOW AND LOCAL WHITEOUT
CONDITIONS TO AREAS AROUND LOST TRAIL...BANNOCK...AND LEMHI
PASSES. 

A WINTER STORM WATCH MEANS THERE IS A POTENTIAL FOR SIGNIFICANT
SNOW OR BLOWING SNOW THAT MAY IMPACT TRAVEL. CONTINUE TO MONITOR
THE LATEST FORECASTS.

$$

IDZ007-008-130500-
/O.CON.KMSO.WS.A.0019.081213T1800Z-081214T1800Z/
OROFINO/GRANGEVILLE REGION-LOWER HELLS CANYON/SALMON RIVER REGION-
1057 AM PST FRI DEC 12 2008

...WINTER STORM WATCH REMAINS IN EFFECT FROM SATURDAY MORNING
THROUGH SUNDAY MORNING...

A WINTER STORM WATCH REMAINS IN EFFECT FROM SATURDAY MORNING
THROUGH SUNDAY MORNING. 

AS THE ARCTIC AIRMASS MOVES INTO THE CAMAS PRAIRIE AND LOWER
HELLS CANYON REGIONS SATURDAY AFTERNOON...LOCALLY HEAVY SNOW IS
EXPECTED TO DEVELOP AS WINDS BECOME NORTH ALONG AND BEHIND THE
FRONT. IN ADDITION TO ACCUMULATING SNOW...COLD ARCTIC AIR WILL
PUSH INTO THE REGION CREATING AREAS OF BLOWING AND DRIFTING SNOW
SATURDAY NIGHT THROUGH SUNDAY. ALTHOUGH SNOW IS EXPECTED TO TAPER
OFF SUNDAY MORNING...LOCALLY STRONG NORTH WINDS AND VERY COLD AIR
AND THE LIGHT NATURE OF THE FRESH SNOW WILL KEEP BLOWING AND
DRIFTING SNOW IN THE FORECAST ALONG WITH VERY COLD WIND CHILLS.

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.

$$

000 
WWUS45 KMSO 121939 CCA
WSWMSO

URGENT - WINTER WEATHER MESSAGE...CORRECTED
NATIONAL WEATHER SERVICE MISSOULA MT
1222 PM MST FRI DEC 12 2008

.A STRONG WINTER STORM WILL IMPACT THE NORTHERN ROCKIES OVER THE
WEEKEND. INITIALLY...SNOW WILL DEVELOP OVER THE MOUNTAINS OF
NORTHWEST MONTANA THIS AFTERNOON AS A COLD FRONT APPROACHES FROM
THE WEST. THIS FRONT WILL PUSH THROUGH IDAHO AND WESTERN MONTANA
TONIGHT. AT THE SAME TIME...ARCTIC AIR WILL PUSH SOUTHWARD INTO
NORTHWEST MONTANA. BLIZZARD CONDITIONS ARE EXPECTED TO DEVELOP IN
GLACIER NATIONAL PARK AND PORTIONS OF THE FLATHEAD VALLEY BY LATE
TONIGHT.

THE ARCTIC AIR WILL CONTINUES IT SOUTHWARD TREK SATURDAY INVADING
ALL OF WESTERN MONTANA AND MUCH OF NORTH CENTRAL IDAHO. THIS WILL
CAUSE BLOWING AND DRIFTING OF SNOW RESULTING IN LOCAL WHITEOUT
CONDITIONS...PLUS BITTERLY COLD WIND CHILLS.

THE INFLUX OF ARCTIC AIR OVER WESTERN MONTANA AND PORTIONS OF
NORTH CENTRAL IDAHO WILL CONTINUE THROUGH TUESDAY WITH VERY COLD
TEMPERATURES AND DANGEROUS WIND CHILLS HIGHLIGHTING THE FORECAST.

MTZ006-007-043-130545-
/O.UPG.KMSO.WS.A.0019.081213T0600Z-081214T1200Z/
/O.EXB.KMSO.WS.W.0015.081213T0600Z-081214T1200Z/
BITTERROOT/SAPPHIRE MOUNTAINS-BUTTE/BLACKFOOT REGION-
POTOMAC/SEELEY LAKE REGION-
1222 PM MST FRI DEC 12 2008

...WINTER STORM WARNING IN EFFECT FROM 11 PM THIS EVENING TO 5 AM
MST SUNDAY...

THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WINTER
STORM WARNING FOR SNOW...WIND...AND WIND CHILLS...WHICH IS IN
EFFECT FROM 11 PM THIS EVENING TO 5 AM MST SUNDAY. THE WINTER
STORM WATCH IS NO LONGER IN EFFECT.

SNOW IS EXPECTED TO DEVELOP TONIGHT...BECOMING MODERATE TO HEAVY
AT TIMES. IN ADDITION TO ACCUMULATING SNOW...COLD AIR WILL SURGE
ACROSS THE CONTINENTAL DIVIDE CREATING AREAS OF BLOWING AND
DRIFTING SNOW ON SATURDAY. ALTHOUGH SNOW IS EXPECTED TO TAPER OFF
SATURDAY NIGHT...STRONG EAST TO NORTHEAST WINDS AND VERY COLD
TEMPERATURES WILL COMBINE FOR DANGEROUS WIND CHILLS.

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW AND BLOWING
SNOW ARE EXPECTED. STRONG WINDS AND DANGEROUS WIND CHILLS ARE
ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE.

$$

IDZ006-130545-
/O.EXT.KMSO.WS.W.0015.081213T0000Z-081214T1800Z/
SOUTHERN CLEARWATER MOUNTAINS-
1122 AM PST FRI DEC 12 2008

...WINTER STORM WARNING NOW IN EFFECT FROM 4 PM THIS AFTERNOON TO
10 AM PST SUNDAY...

THE WINTER STORM WARNING IS NOW IN EFFECT FROM 4 PM THIS
AFTERNOON TO 10 AM PST SUNDAY. 

SNOW WILL DEVELOP THIS EVENING...BECOMING MODERATE TO HEAVY
OVERNIGHT. SNOW IS EXPECTED TO CONTINUE INTO SUNDAY WITH TOTAL
ACCUMULATIONS OF UP TO 2 FEET POSSIBLE OVER THE HIGHER TERRAIN
AND 5 TO 8 INCHES EXPECTED IN THE VALLEYS. ADDITIONALLY...
NORTHEAST TO EAST WINDS AT 15 TO 20 MPH ARE EXPECTED TO DEVELOP
BY SATURDAY NIGHT AS ARCTIC AIR PUSHES WESTWARD INTO THE AREA.
THIS WILL CREATE AREAS OF BLOWING AND DRIFTING SNOW WITH LOCAL
WHITEOUT CONDITIONS POSSIBLE.

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW AND BLOWING
SNOW ARE EXPECTED. STRONG WINDS AND WIND CHILLS ARE ALSO
POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE.

$$

MTZ003-130545-
/O.CON.KMSO.BZ.W.0006.081213T0600Z-081214T0000Z/
FLATHEAD/MISSION VALLEYS-
1222 PM MST FRI DEC 12 2008

...BLIZZARD WARNING REMAINS IN EFFECT FROM 11 PM THIS EVENING TO
5 PM MST SATURDAY...

A BLIZZARD WARNING REMAINS IN EFFECT FROM 11 PM THIS EVENING TO
5 PM MST SATURDAY. 

BLIZZARD CONDITIONS WITH VISIBILITIES LOWERING TO 1/4
MILE ARE EXPECTED MAINLY NORTH OF FLATHEAD LAKE AND ALONG HIGHWAY
2 THROUGH BAD ROCK CANYON LATE THIS EVENING THROUGH SATURDAY.

SNOW IS EXPECTED TO DEVELOP THIS AFTERNOON...BECOMING MODERATE TO
HEAVY AT TIMES OVERNIGHT. IN ADDITION TO ACCUMULATING SNOW...COLD
AIR WILL SURGE ACROSS THE CONTINENTAL DIVIDE CREATING NORTHEAST
WINDS AT 25 TO 35 MPH WITH GUSTS TO 40 MPH POSSIBLE. 

LOCATIONS FROM FLATHEAD LAKE SOUTH THROUGH THE MISSION VALLEY
WILL EXPERIENCE ACCUMULATING SNOW WITH LOCAL WHITE OUT CONDITIONS
POSSIBLE. HOWEVER...WINDS ARE NOT EXPECTED TO BE AS STRONG AND
THUS WIDESPREAD BLIZZARD CONDITIONS ARE NOT EXPECTED.

STORM TOTAL SNOWFALL AMOUNTS ARE EXPECTED TO BE BETWEEN 15 AND 20
INCHES IN HIGHER ELEVATIONS WHILE VALLEY LOCATIONS WILL RECEIVE 6
TO 8 INCHES THROUGH SUNDAY.

SNOW WILL BEGIN TO TAPER OFF SATURDAY NIGHT...THOUGH BITTERLY
COLD TEMPERATURES AND STRONG GUSTY WINDS WILL CONTINUE THROUGH THE
DAY SUNDAY. THIS COMBINATION WILL RESULT IN DANGEROUS WIND CHILLS.

A BLIZZARD WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE
EXPECTED OR OCCURRING. FALLING AND BLOWING SNOW WITH STRONG WINDS
AND POOR VISIBILITIES ARE LIKELY. THIS WILL LEAD TO WHITEOUT
CONDITIONS...MAKING TRAVEL EXTREMELY DANGEROUS. DO NOT TRAVEL. IF
YOU MUST TRAVEL...HAVE A WINTER SURVIVAL KIT WITH YOU. IF YOU GET
STRANDED...STAY WITH YOUR VEHICLE.

$$

MTZ002-130545-
/O.CON.KMSO.BZ.W.0006.081213T0600Z-081214T0000Z/
WEST GLACIER REGION-
1222 PM MST FRI DEC 12 2008

...BLIZZARD WARNING REMAINS IN EFFECT FROM 11 PM THIS EVENING TO
5 PM MST SATURDAY...

A BLIZZARD WARNING REMAINS IN EFFECT FROM 11 PM THIS EVENING TO
5 PM MST SATURDAY. 

SNOW IS EXPECTED TO DEVELOP LATE THIS AFTERNOON...BECOMING
MODERATE TO HEAVY AT TIMES OVERNIGHT. IN ADDITION TO ACCUMULATING
SNOW...COLD AIR WILL SURGE ACROSS THE CONTINENTAL DIVIDE CREATING
NORTHEAST WINDS AT 25 TO 35 MPH WITH GUSTS TO 40 MPH POSSIBLE.
THE WINDS COUPLED WITH THE SNOW AND BLOWING SNOW WILL RESULT IN
BLIZZARD CONDITIONS WITH VISIBILITIES LOWERING TO 1/4 MILE...
MAINLY ALONG HIGHWAY 2 BETWEEN WEST GLACIER AND MARIAS PASS...AND
ALSO ALONG ROUTE 486 NORTH TO POLEBRIDGE. BLIZZARD CONDITIONS ARE
EXPECTED TO LAST INTO SATURDAY AFTERNOON. SNOW WILL THEN BEGIN TO
TAPER OFF OVERNIGHT...THOUGH BITTERLY COLD TEMPERATURES AND
STRONG GUSTY WINDS WILL CONTINUE THROUGH THE DAY SUNDAY. THIS
COMBINATION WILL RESULT IN DANGEROUS WIND CHILLS. STORM TOTAL
SNOWFALL AMOUNTS ARE EXPECTED TO BE BETWEEN 12 AND 18 INCHES IN
THE HIGHER ELEVATIONS WHILE VALLEY LOCATIONS WILL RECEIVE 6 TO
8 INCHES THROUGH SUNDAY.

A BLIZZARD WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE
EXPECTED OR OCCURRING. FALLING AND BLOWING SNOW WITH STRONG WINDS
AND POOR VISIBILITIES ARE LIKELY. THIS WILL LEAD TO WHITEOUT
CONDITIONS...MAKING TRAVEL EXTREMELY DANGEROUS. DO NOT TRAVEL. IF
YOU MUST TRAVEL...HAVE A WINTER SURVIVAL KIT WITH YOU. IF YOU GET
STRANDED...STAY WITH YOUR VEHICLE.

$$

MTZ001-004-130545-
/O.CON.KMSO.WS.W.0015.081213T0000Z-081214T0000Z/
KOOTENAI/CABINET REGION-LOWER CLARK FORK REGION-
1222 PM MST FRI DEC 12 2008

...WINTER STORM WARNING REMAINS IN EFFECT FROM 5 PM THIS
AFTERNOON TO 5 PM MST SATURDAY...

A WINTER STORM WARNING REMAINS IN EFFECT FROM 5 PM THIS AFTERNOON
TO 5 PM MST SATURDAY. 

SNOW IS EXPECTED TO DEVELOP THIS AFTERNOON...BECOMING MODERATE TO
HEAVY AT TIMES IN THE EVENING AND OVERNIGHT. SNOW WILL CONTINUE
THOUGH GRADUALLY TAPER OFF THROUGH THE DAY SATURDAY. UP TO
20 INCHES OF TOTAL SNOWFALL IS LIKELY IN THE MOUNTAINS OF
NORTHWEST MONTANA...WHILE VALLEY LOCATIONS ARE EXPECTED TO
RECEIVE 6 TO 8 INCHES TOTAL SNOWFALL BY SATURDAY. IN ADDITION TO
ACCUMULATING SNOW...COLD AIR WILL SURGE ACROSS THE CONTINENTAL
DIVIDE CREATING LOCAL AREAS OF BLOWING AND DRIFTING SNOW. POOR
VISIBILITIES CAN BE EXPECTED IN AREAS OF BLOWING SNOW AND CAN
LEAD TO WHITEOUT CONDITIONS...MAKING TRAVEL DANGEROUS. AS SNOW
TAPERS OFF SATURDAY...LOOK FOR FALLING TEMPERATURES AND STRONG
WINDS RESULTING IN DANGEROUS WIND CHILLS THROUGH SUNDAY.

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW...
BLOWING SNOW...OR FREEZING RAIN ARE EXPECTED OR OCCURRING. STRONG
WINDS AND DANGEROUS WIND CHILLS ARE ALSO POSSIBLE.  THIS WILL
MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE.

$$

IDZ005-130545-
/O.CON.KMSO.WS.W.0015.081213T0000Z-081214T1800Z/
NORTHERN CLEARWATER MOUNTAINS-
1122 AM PST FRI DEC 12 2008

...WINTER STORM WARNING REMAINS IN EFFECT FROM 4 PM THIS
AFTERNOON TO 10 AM PST SUNDAY...

A WINTER STORM WARNING REMAINS IN EFFECT FROM 4 PM THIS AFTERNOON
TO 10 AM PST SUNDAY. 

SNOW WILL DEVELOP THIS AFTERNOON...BECOMING MODERATE TO HEAVY IN
THE EVENING AND OVERNIGHT. SNOW IS EXPECTED TO CONTINUE INTO
SUNDAY WITH TOTAL ACCUMULATIONS OF UP TO 2 FEET POSSIBLE OVER THE
HIGHER TERRAIN AND 5 TO 8 INCHES IN THE VALLEYS. ADDITIONALLY...
NORTHEAST TO EAST WINDS AT 15 TO 20 MPH ARE EXPECTED TO DEVELOP BY
SATURDAY NIGHT AS ARCTIC AIR PUSHES WESTWARD INTO THE AREA. THIS
WILL CREATE AREAS OF BLOWING AND DRIFTING SNOW WITH LOCAL WHITEOUT
CONDITIONS POSSIBLE.

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW...
BLOWING SNOW...OR FREEZING RAIN ARE EXPECTED OR OCCURRING. STRONG
WINDS AND DANGEROUS WIND CHILLS ARE ALSO POSSIBLE.  THIS WILL
MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE.

$$

MTZ005-130545-
/O.UPG.KMSO.WS.A.0019.081213T0600Z-081214T1200Z/
/O.COR.KMSO.WW.Y.0017.081213T0600Z-081214T1200Z/
MISSOULA/BITTERROOT VALLEYS-
1222 PM MST FRI DEC 12 2008

...WINTER WEATHER ADVISORY IN EFFECT FROM 11 PM THIS EVENING TO
5 AM MST SUNDAY...

THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW...BLOWING SNOW...AND WIND CHILL...WHICH
IS IN EFFECT FROM 11 PM THIS EVENING TO 5 AM MST SUNDAY. THE
WINTER STORM WATCH IS NO LONGER IN EFFECT.

SNOW IS EXPECTED TO DEVELOP TONIGHT...POSSIBLY MODERATE TO HEAVY
IN INTENSITY FROM AROUND MIDNIGHT TO DAYBREAK. SNOW AMOUNTS WILL
GENERALLY RANGE FROM 2 TO 4 INCHES...BUT THE SURROUNDING FOOTHILLS
AND BENCHES COULD SEE UP TO 7 INCHES.

COLD AIR WILL SURGE ACROSS THE CONTINENTAL DIVIDE CREATING AREAS
OF BLOWING AND DRIFTING SNOW ON SATURDAY. HOWEVER...THIS EASTERLY
FLOW IS A DRIER PATTERN FOR THE VALLEY SO THE SNOW SHOULD BEGIN TO
TAPER OFF. THE WEATHER CONCERN WILL THEN TRANSITION TO VERY COLD
TEMPERATURES AND DANGEROUS WIND CHILLS SATURDAY AFTERNOON AND
ESPECIALLY SATURDAY NIGHT. WIND CHILL TEMPERATURES WILL BEGIN TO
DROP BELOW ZERO SATURDAY EVENING...AND RANGE FROM 10 BELOW TO 20
BELOW THROUGH THE NIGHT. THEY WILL LIKELY GET EVEN COLDER SUNDAY
NIGHT.

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

$$

IDZ009-010-130545-
/O.CON.KMSO.WS.A.0019.081213T1200Z-081214T1200Z/
WESTERN LEMHI COUNTY-EASTERN LEMHI COUNTY-
1222 PM MST FRI DEC 12 2008

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

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

AN INCOMING PACIFIC WEATHER SYSTEM HAS THE POTENTIAL TO PRODUCE
MODERATE TO HEAVY SNOW ACCUMULATIONS IN LEMHI
COUNTY...PARTICULARLY FROM NORTH FORK TO LOST TRAIL PASS. LATE
SATURDAY AN ARCTIC AIR MASS WILL PUSH UP AGAINST THE CONTINENTAL
DIVIDE AND POSSIBLY SPILL INTO THE COUNTY AS WELL. HOWEVER...IT
NOW LOOKS LIKE IT WILL REMAIN ALONG THE NORTHERN AND EASTERN
BOUNDARIES. THIS SHOULD RESTRICT BLOWING SNOW AND LOCAL WHITEOUT
CONDITIONS TO AREAS AROUND LOST TRAIL...BANNOCK...AND LEMHI
PASSES. 

A WINTER STORM WATCH MEANS THERE IS A POTENTIAL FOR SIGNIFICANT
SNOW OR BLOWING SNOW THAT MAY IMPACT TRAVEL. CONTINUE TO MONITOR
THE LATEST FORECASTS.

$$

IDZ007-008-130545-
/O.CON.KMSO.WS.A.0019.081213T1800Z-081214T1800Z/
OROFINO/GRANGEVILLE REGION-LOWER HELLS CANYON/SALMON RIVER REGION-
1122 AM PST FRI DEC 12 2008

...WINTER STORM WATCH REMAINS IN EFFECT FROM SATURDAY MORNING
THROUGH SUNDAY MORNING...

A WINTER STORM WATCH REMAINS IN EFFECT FROM SATURDAY MORNING
THROUGH SUNDAY MORNING. 

AS THE ARCTIC AIRMASS MOVES INTO THE CAMAS PRAIRIE AND LOWER
HELLS CANYON REGIONS SATURDAY AFTERNOON...LOCALLY HEAVY SNOW IS
EXPECTED TO DEVELOP AS WINDS BECOME NORTH ALONG AND BEHIND THE
FRONT. IN ADDITION TO ACCUMULATING SNOW...COLD ARCTIC AIR WILL
PUSH INTO THE REGION CREATING AREAS OF BLOWING AND DRIFTING SNOW
SATURDAY NIGHT THROUGH SUNDAY. ALTHOUGH SNOW IS EXPECTED TO TAPER
OFF SUNDAY MORNING...LOCALLY STRONG NORTH WINDS AND VERY COLD AIR
AND THE LIGHT NATURE OF THE FRESH SNOW WILL KEEP BLOWING AND
DRIFTING SNOW IN THE FORECAST ALONG WITH VERY COLD WIND CHILLS.

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.

$$

000 
WWUS45 KMSO 122119
WSWMSO

URGENT - WINTER WEATHER MESSAGE...RESENT
NATIONAL WEATHER SERVICE MISSOULA MT
217 PM MST FRI DEC 12 2008

.A STRONG WINTER STORM WILL IMPACT THE NORTHERN ROCKIES OVER THE
WEEKEND. INITIALLY...SNOW WILL DEVELOP OVER THE MOUNTAINS OF
NORTHWEST MONTANA THIS AFTERNOON AS A COLD FRONT APPROACHES FROM
THE WEST. THIS FRONT WILL PUSH THROUGH IDAHO AND WESTERN MONTANA
TONIGHT. AT THE SAME TIME...ARCTIC AIR WILL PUSH SOUTHWARD INTO
NORTHWEST MONTANA. BLIZZARD CONDITIONS ARE EXPECTED TO DEVELOP IN
GLACIER NATIONAL PARK AND PORTIONS OF THE FLATHEAD VALLEY BY LATE
TONIGHT.

THE ARCTIC AIR WILL CONTINUES IT SOUTHWARD TREK SATURDAY INVADING
ALL OF WESTERN MONTANA AND MUCH OF NORTH CENTRAL IDAHO. THIS WILL
CAUSE BLOWING AND DRIFTING OF SNOW RESULTING IN LOCAL WHITEOUT
CONDITIONS...PLUS BITTERLY COLD WIND CHILLS.

THE INFLUX OF ARCTIC AIR OVER WESTERN MONTANA AND PORTIONS OF
NORTH CENTRAL IDAHO WILL CONTINUE THROUGH TUESDAY WITH VERY COLD
TEMPERATURES AND DANGEROUS WIND CHILLS HIGHLIGHTING THE FORECAST.

MTZ006-007-043-130745-
/O.UPG.KMSO.WS.A.0019.081213T0600Z-081214T1200Z/
/O.EXB.KMSO.WS.W.0015.081213T0600Z-081214T1200Z/
BITTERROOT/SAPPHIRE MOUNTAINS-BUTTE/BLACKFOOT REGION-
POTOMAC/SEELEY LAKE REGION-
217 PM MST FRI DEC 12 2008

...WINTER STORM WARNING IN EFFECT FROM 11 PM THIS EVENING TO 5 AM
MST SUNDAY...

THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WINTER
STORM WARNING FOR SNOW...WIND...AND WIND CHILLS...WHICH IS IN
EFFECT FROM 11 PM THIS EVENING TO 5 AM MST SUNDAY. THE WINTER
STORM WATCH IS NO LONGER IN EFFECT.

SNOW IS EXPECTED TO DEVELOP TONIGHT...BECOMING MODERATE TO HEAVY
AT TIMES. IN ADDITION TO ACCUMULATING SNOW...COLD AIR WILL SURGE
ACROSS THE CONTINENTAL DIVIDE CREATING AREAS OF BLOWING AND
DRIFTING SNOW ON SATURDAY. ALTHOUGH SNOW IS EXPECTED TO TAPER OFF
SATURDAY NIGHT...STRONG EAST TO NORTHEAST WINDS AND VERY COLD
TEMPERATURES WILL COMBINE FOR DANGEROUS WIND CHILLS.

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW AND BLOWING
SNOW ARE EXPECTED. STRONG WINDS AND DANGEROUS WIND CHILLS ARE
ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE.

$$

IDZ006-130745-
/O.EXT.KMSO.WS.W.0015.081213T0000Z-081214T1800Z/
SOUTHERN CLEARWATER MOUNTAINS-
117 PM PST FRI DEC 12 2008

...WINTER STORM WARNING NOW IN EFFECT FROM 4 PM THIS AFTERNOON TO
10 AM PST SUNDAY...

THE WINTER STORM WARNING IS NOW IN EFFECT FROM 4 PM THIS
AFTERNOON TO 10 AM PST SUNDAY. 

SNOW WILL DEVELOP THIS EVENING...BECOMING MODERATE TO HEAVY
OVERNIGHT. SNOW IS EXPECTED TO CONTINUE INTO SUNDAY WITH TOTAL
ACCUMULATIONS OF UP TO 2 FEET POSSIBLE OVER THE HIGHER TERRAIN
AND 5 TO 8 INCHES EXPECTED IN THE VALLEYS. ADDITIONALLY...
NORTHEAST TO EAST WINDS AT 15 TO 20 MPH ARE EXPECTED TO DEVELOP
BY SATURDAY NIGHT AS ARCTIC AIR PUSHES WESTWARD INTO THE AREA.
THIS WILL CREATE AREAS OF BLOWING AND DRIFTING SNOW WITH LOCAL
WHITEOUT CONDITIONS POSSIBLE.

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW AND BLOWING
SNOW ARE EXPECTED. STRONG WINDS AND WIND CHILLS ARE ALSO
POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE.

$$

MTZ003-130745-
/O.CON.KMSO.BZ.W.0006.081213T0600Z-081214T0000Z/
FLATHEAD/MISSION VALLEYS-
217 PM MST FRI DEC 12 2008

...BLIZZARD WARNING REMAINS IN EFFECT FROM 11 PM THIS EVENING TO
5 PM MST SATURDAY...

A BLIZZARD WARNING REMAINS IN EFFECT FROM 11 PM THIS EVENING TO
5 PM MST SATURDAY. 

BLIZZARD CONDITIONS WITH VISIBILITIES LOWERING TO 1/4
MILE ARE EXPECTED MAINLY NORTH OF FLATHEAD LAKE AND ALONG HIGHWAY
2 THROUGH BAD ROCK CANYON LATE THIS EVENING THROUGH SATURDAY.

SNOW IS EXPECTED TO DEVELOP THIS AFTERNOON...BECOMING MODERATE TO
HEAVY AT TIMES OVERNIGHT. IN ADDITION TO ACCUMULATING SNOW...COLD
AIR WILL SURGE ACROSS THE CONTINENTAL DIVIDE CREATING NORTHEAST
WINDS AT 25 TO 35 MPH WITH GUSTS TO 40 MPH POSSIBLE. 

LOCATIONS FROM FLATHEAD LAKE SOUTH THROUGH THE MISSION VALLEY
WILL EXPERIENCE ACCUMULATING SNOW WITH LOCAL WHITE OUT CONDITIONS
POSSIBLE. HOWEVER...WINDS ARE NOT EXPECTED TO BE AS STRONG AND
THUS WIDESPREAD BLIZZARD CONDITIONS ARE NOT EXPECTED.

STORM TOTAL SNOWFALL AMOUNTS ARE EXPECTED TO BE BETWEEN 15 AND 20
INCHES IN HIGHER ELEVATIONS WHILE VALLEY LOCATIONS WILL RECEIVE 6
TO 8 INCHES THROUGH SUNDAY.

SNOW WILL BEGIN TO TAPER OFF SATURDAY NIGHT...THOUGH BITTERLY
COLD TEMPERATURES AND STRONG GUSTY WINDS WILL CONTINUE THROUGH THE
DAY SUNDAY. THIS COMBINATION WILL RESULT IN DANGEROUS WIND CHILLS.

A BLIZZARD WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE
EXPECTED OR OCCURRING. FALLING AND BLOWING SNOW WITH STRONG WINDS
AND POOR VISIBILITIES ARE LIKELY. THIS WILL LEAD TO WHITEOUT
CONDITIONS...MAKING TRAVEL EXTREMELY DANGEROUS. DO NOT TRAVEL. IF
YOU MUST TRAVEL...HAVE A WINTER SURVIVAL KIT WITH YOU. IF YOU GET
STRANDED...STAY WITH YOUR VEHICLE.

$$

MTZ002-130745-
/O.CON.KMSO.BZ.W.0006.081213T0600Z-081214T0000Z/
WEST GLACIER REGION-
217 PM MST FRI DEC 12 2008

...BLIZZARD WARNING REMAINS IN EFFECT FROM 11 PM THIS EVENING TO
5 PM MST SATURDAY...

A BLIZZARD WARNING REMAINS IN EFFECT FROM 11 PM THIS EVENING TO
5 PM MST SATURDAY. 

SNOW IS EXPECTED TO DEVELOP LATE THIS AFTERNOON...BECOMING
MODERATE TO HEAVY AT TIMES OVERNIGHT. IN ADDITION TO ACCUMULATING
SNOW...COLD AIR WILL SURGE ACROSS THE CONTINENTAL DIVIDE CREATING
NORTHEAST WINDS AT 25 TO 35 MPH WITH GUSTS TO 40 MPH POSSIBLE.
THE WINDS COUPLED WITH THE SNOW AND BLOWING SNOW WILL RESULT IN
BLIZZARD CONDITIONS WITH VISIBILITIES LOWERING TO 1/4 MILE...
MAINLY ALONG HIGHWAY 2 BETWEEN WEST GLACIER AND MARIAS PASS...AND
ALSO ALONG ROUTE 486 NORTH TO POLEBRIDGE. BLIZZARD CONDITIONS ARE
EXPECTED TO LAST INTO SATURDAY AFTERNOON. SNOW WILL THEN BEGIN TO
TAPER OFF OVERNIGHT...THOUGH BITTERLY COLD TEMPERATURES AND
STRONG GUSTY WINDS WILL CONTINUE THROUGH THE DAY SUNDAY. THIS
COMBINATION WILL RESULT IN DANGEROUS WIND CHILLS. STORM TOTAL
SNOWFALL AMOUNTS ARE EXPECTED TO BE BETWEEN 12 AND 18 INCHES IN
THE HIGHER ELEVATIONS WHILE VALLEY LOCATIONS WILL RECEIVE 6 TO
8 INCHES THROUGH SUNDAY.

A BLIZZARD WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE
EXPECTED OR OCCURRING. FALLING AND BLOWING SNOW WITH STRONG WINDS
AND POOR VISIBILITIES ARE LIKELY. THIS WILL LEAD TO WHITEOUT
CONDITIONS...MAKING TRAVEL EXTREMELY DANGEROUS. DO NOT TRAVEL. IF
YOU MUST TRAVEL...HAVE A WINTER SURVIVAL KIT WITH YOU. IF YOU GET
STRANDED...STAY WITH YOUR VEHICLE.

$$

MTZ001-004-130745-
/O.CON.KMSO.WS.W.0015.081213T0000Z-081214T0000Z/
KOOTENAI/CABINET REGION-LOWER CLARK FORK REGION-
217 PM MST FRI DEC 12 2008

...WINTER STORM WARNING REMAINS IN EFFECT FROM 5 PM THIS
AFTERNOON TO 5 PM MST SATURDAY...

A WINTER STORM WARNING REMAINS IN EFFECT FROM 5 PM THIS AFTERNOON
TO 5 PM MST SATURDAY. 

SNOW IS EXPECTED TO DEVELOP THIS AFTERNOON...BECOMING MODERATE TO
HEAVY AT TIMES IN THE EVENING AND OVERNIGHT. SNOW WILL CONTINUE
THOUGH GRADUALLY TAPER OFF THROUGH THE DAY SATURDAY. UP TO
20 INCHES OF TOTAL SNOWFALL IS LIKELY IN THE MOUNTAINS OF
NORTHWEST MONTANA...WHILE VALLEY LOCATIONS ARE EXPECTED TO
RECEIVE 6 TO 8 INCHES TOTAL SNOWFALL BY SATURDAY. IN ADDITION TO
ACCUMULATING SNOW...COLD AIR WILL SURGE ACROSS THE CONTINENTAL
DIVIDE CREATING LOCAL AREAS OF BLOWING AND DRIFTING SNOW. POOR
VISIBILITIES CAN BE EXPECTED IN AREAS OF BLOWING SNOW AND CAN
LEAD TO WHITEOUT CONDITIONS...MAKING TRAVEL DANGEROUS. AS SNOW
TAPERS OFF SATURDAY...LOOK FOR FALLING TEMPERATURES AND STRONG
WINDS RESULTING IN DANGEROUS WIND CHILLS THROUGH SUNDAY.

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW...
BLOWING SNOW...OR FREEZING RAIN ARE EXPECTED OR OCCURRING. STRONG
WINDS AND DANGEROUS WIND CHILLS ARE ALSO POSSIBLE.  THIS WILL
MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE.

$$

IDZ005-130745-
/O.CON.KMSO.WS.W.0015.081213T0000Z-081214T1800Z/
NORTHERN CLEARWATER MOUNTAINS-
117 PM PST FRI DEC 12 2008

...WINTER STORM WARNING REMAINS IN EFFECT FROM 4 PM THIS
AFTERNOON TO 10 AM PST SUNDAY...

A WINTER STORM WARNING REMAINS IN EFFECT FROM 4 PM THIS AFTERNOON
TO 10 AM PST SUNDAY. 

SNOW WILL DEVELOP THIS AFTERNOON...BECOMING MODERATE TO HEAVY IN
THE EVENING AND OVERNIGHT. SNOW IS EXPECTED TO CONTINUE INTO
SUNDAY WITH TOTAL ACCUMULATIONS OF UP TO 2 FEET POSSIBLE OVER THE
HIGHER TERRAIN AND 5 TO 8 INCHES IN THE VALLEYS. ADDITIONALLY...
NORTHEAST TO EAST WINDS AT 15 TO 20 MPH ARE EXPECTED TO DEVELOP BY
SATURDAY NIGHT AS ARCTIC AIR PUSHES WESTWARD INTO THE AREA. THIS
WILL CREATE AREAS OF BLOWING AND DRIFTING SNOW WITH LOCAL WHITEOUT
CONDITIONS POSSIBLE.

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW...
BLOWING SNOW...OR FREEZING RAIN ARE EXPECTED OR OCCURRING. STRONG
WINDS AND DANGEROUS WIND CHILLS ARE ALSO POSSIBLE.  THIS WILL
MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE.

$$

MTZ005-130745-
/O.UPG.KMSO.WS.A.0019.081213T0600Z-081214T1200Z/
/O.COR.KMSO.WW.Y.0017.081213T0600Z-081214T1200Z/
MISSOULA/BITTERROOT VALLEYS-
217 PM MST FRI DEC 12 2008

...WINTER WEATHER ADVISORY IN EFFECT FROM 11 PM THIS EVENING TO
5 AM MST SUNDAY...

THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW...BLOWING SNOW...AND WIND CHILL...WHICH
IS IN EFFECT FROM 11 PM THIS EVENING TO 5 AM MST SUNDAY. THE
WINTER STORM WATCH IS NO LONGER IN EFFECT.

SNOW IS EXPECTED TO DEVELOP TONIGHT...POSSIBLY MODERATE TO HEAVY
IN INTENSITY FROM AROUND MIDNIGHT TO DAYBREAK. SNOW AMOUNTS WILL
GENERALLY RANGE FROM 2 TO 4 INCHES...BUT THE SURROUNDING FOOTHILLS
AND BENCHES COULD SEE UP TO 7 INCHES.

COLD AIR WILL SURGE ACROSS THE CONTINENTAL DIVIDE CREATING AREAS
OF BLOWING AND DRIFTING SNOW ON SATURDAY. HOWEVER...THIS EASTERLY
FLOW IS A DRIER PATTERN FOR THE VALLEY SO THE SNOW SHOULD BEGIN TO
TAPER OFF. THE WEATHER CONCERN WILL THEN TRANSITION TO VERY COLD
TEMPERATURES AND DANGEROUS WIND CHILLS SATURDAY AFTERNOON AND
ESPECIALLY SATURDAY NIGHT. WIND CHILL TEMPERATURES WILL BEGIN TO
DROP BELOW ZERO SATURDAY EVENING...AND RANGE FROM 10 BELOW TO 20
BELOW THROUGH THE NIGHT. THEY WILL LIKELY GET EVEN COLDER SUNDAY
NIGHT.

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

$$

IDZ009-010-130745-
/O.CON.KMSO.WS.A.0019.081213T1200Z-081214T1200Z/
WESTERN LEMHI COUNTY-EASTERN LEMHI COUNTY-
217 PM MST FRI DEC 12 2008

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

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

AN INCOMING PACIFIC WEATHER SYSTEM HAS THE POTENTIAL TO PRODUCE
MODERATE TO HEAVY SNOW ACCUMULATIONS IN LEMHI
COUNTY...PARTICULARLY FROM NORTH FORK TO LOST TRAIL PASS. LATE
SATURDAY AN ARCTIC AIR MASS WILL PUSH UP AGAINST THE CONTINENTAL
DIVIDE AND POSSIBLY SPILL INTO THE COUNTY AS WELL. HOWEVER...IT
NOW LOOKS LIKE IT WILL REMAIN ALONG THE NORTHERN AND EASTERN
BOUNDARIES. THIS SHOULD RESTRICT BLOWING SNOW AND LOCAL WHITEOUT
CONDITIONS TO AREAS AROUND LOST TRAIL...BANNOCK...AND LEMHI
PASSES. 

A WINTER STORM WATCH MEANS THERE IS A POTENTIAL FOR SIGNIFICANT
SNOW OR BLOWING SNOW THAT MAY IMPACT TRAVEL. CONTINUE TO MONITOR
THE LATEST FORECASTS.

$$

IDZ007-008-130745-
/O.CON.KMSO.WS.A.0019.081213T1800Z-081214T1800Z/
OROFINO/GRANGEVILLE REGION-LOWER HELLS CANYON/SALMON RIVER REGION-
117 PM PST FRI DEC 12 2008

...WINTER STORM WATCH REMAINS IN EFFECT FROM SATURDAY MORNING
THROUGH SUNDAY MORNING...

A WINTER STORM WATCH REMAINS IN EFFECT FROM SATURDAY MORNING
THROUGH SUNDAY MORNING. 

AS THE ARCTIC AIRMASS MOVES INTO THE CAMAS PRAIRIE AND LOWER
HELLS CANYON REGIONS SATURDAY AFTERNOON...LOCALLY HEAVY SNOW IS
EXPECTED TO DEVELOP AS WINDS BECOME NORTH ALONG AND BEHIND THE
FRONT. IN ADDITION TO ACCUMULATING SNOW...COLD ARCTIC AIR WILL
PUSH INTO THE REGION CREATING AREAS OF BLOWING AND DRIFTING SNOW
SATURDAY NIGHT THROUGH SUNDAY. ALTHOUGH SNOW IS EXPECTED TO TAPER
OFF SUNDAY MORNING...LOCALLY STRONG NORTH WINDS AND VERY COLD AIR
AND THE LIGHT NATURE OF THE FRESH SNOW WILL KEEP BLOWING AND
DRIFTING SNOW IN THE FORECAST ALONG WITH VERY COLD WIND CHILLS.

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.

$$

000 
WWUS45 KMSO 122156
WSWMSO

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE MISSOULA MT
256 PM MST FRI DEC 12 2008

.A STRONG WINTER STORM WILL IMPACT THE NORTHERN ROCKIES OVER THE
WEEKEND. INITIALLY...SNOW WILL DEVELOP OVER THE MOUNTAINS OF
NORTHWEST MONTANA THROUGH THIS AFTERNOON AS A COLD FRONT
APPROACHES FROM THE WEST. THIS FRONT WILL MOVE THROUGH IDAHO AND
WESTERN MONTANA TONIGHT. AT THE SAME TIME...ARCTIC AIR WILL PUSH
SOUTHWARD INTO NORTHWEST MONTANA. BLIZZARD CONDITIONS ARE EXPECTED
TO DEVELOP IN GLACIER NATIONAL PARK AND PORTIONS OF THE FLATHEAD
VALLEY BY LATE TONIGHT.

THE ARCTIC AIR WILL CONTINUE ITS SOUTHWARD TREK SATURDAY INVADING
ALL OF WESTERN MONTANA AND MUCH OF NORTH CENTRAL IDAHO. THIS WILL
CAUSE BLOWING AND DRIFTING SNOW RESULTING IN LOCAL WHITEOUT
CONDITIONS...PLUS BITTERLY COLD WIND CHILLS.

THE INFLUX OF ARCTIC AIR OVER WESTERN MONTANA AND PORTIONS OF
NORTH CENTRAL IDAHO WILL CONTINUE THROUGH TUESDAY WITH VERY COLD
TEMPERATURES AND DANGEROUS WIND CHILLS HIGHLIGHTING THE FORECAST.

MTZ003-130800-
/O.CON.KMSO.BZ.W.0006.081213T0600Z-081214T0000Z/
FLATHEAD/MISSION VALLEYS-
256 PM MST FRI DEC 12 2008

...BLIZZARD WARNING REMAINS IN EFFECT FROM 11 PM THIS EVENING TO
5 PM MST SATURDAY...

A BLIZZARD WARNING REMAINS IN EFFECT FROM 11 PM THIS EVENING TO
5 PM MST SATURDAY. 

BLIZZARD CONDITIONS WITH VISIBILITIES LOWERING TO 1/4 MILE ARE
EXPECTED MAINLY NORTH OF FLATHEAD LAKE AND ALONG HIGHWAY
2 THROUGH BAD ROCK CANYON LATE TONIGHT THROUGH SATURDAY.

LOCATIONS FROM FLATHEAD LAKE SOUTH THROUGH THE MISSION VALLEY
WILL EXPERIENCE LOCAL WHITE OUT CONDITIONS POSSIBLE.
HOWEVER...WINDS ARE NOT EXPECTED TO BE AS STRONG AND THUS
WIDESPREAD BLIZZARD CONDITIONS ARE NOT EXPECTED.

SNOW IS EXPECTED TO DEVELOP THIS EVENING...BECOMING MODERATE TO
HEAVY AT TIMES OVERNIGHT. IN ADDITION TO ACCUMULATING SNOW...COLD
AIR WILL SURGE ACROSS THE CONTINENTAL DIVIDE CREATING NORTHEAST
WINDS AT 25 TO 35 MPH WITH GUSTS TO 40 MPH POSSIBLE.

STORM TOTAL SNOWFALL AMOUNTS ARE EXPECTED TO BE BETWEEN 15 AND
20 INCHES IN HIGHER ELEVATIONS WHILE VALLEY LOCATIONS WILL
RECEIVE 6 TO 8 INCHES THROUGH SUNDAY.

SNOW WILL BEGIN TO TAPER OFF SATURDAY NIGHT...THOUGH BITTERLY
COLD TEMPERATURES AND STRONG GUSTY WINDS WILL CONTINUE THROUGH
THE DAY SUNDAY. THIS COMBINATION WILL RESULT IN DANGEROUS WIND
CHILLS.

A BLIZZARD WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE
EXPECTED OR OCCURRING. TRAVEL WILL BE EXTREMELY DANGEROUS. DO NOT
TRAVEL. IF YOU MUST TRAVEL...HAVE A WINTER SURVIVAL KIT WITH YOU.
IF YOU GET STRANDED...STAY WITH YOUR VEHICLE.

$$

MTZ002-130800-
/O.CON.KMSO.BZ.W.0006.081213T0600Z-081214T0000Z/
WEST GLACIER REGION-
256 PM MST FRI DEC 12 2008

...BLIZZARD WARNING REMAINS IN EFFECT FROM 11 PM THIS EVENING TO
5 PM MST SATURDAY...

A BLIZZARD WARNING REMAINS IN EFFECT FROM 11 PM THIS EVENING TO
5 PM MST SATURDAY. 

SNOW WILL DEVELOP LATE THIS AFTERNOON...BECOMING MODERATE TO
HEAVY AT TIMES OVERNIGHT. IN ADDITION TO ACCUMULATING SNOW...COLD
AIR WILL SURGE ACROSS THE CONTINENTAL DIVIDE CREATING NORTHEAST
WINDS AT 25 TO 35 MPH WITH GUSTS TO 40 MPH POSSIBLE. THE WINDS
COUPLED WITH THE SNOW AND BLOWING SNOW WILL RESULT IN BLIZZARD
CONDITIONS WITH VISIBILITIES LOWERING TO 1/4 MILE... MAINLY ALONG
HIGHWAY 2 BETWEEN WEST GLACIER AND MARIAS PASS...AND ALSO ALONG
ROUTE 486 NORTH TO POLEBRIDGE. BLIZZARD CONDITIONS ARE EXPECTED
TO LAST INTO SATURDAY AFTERNOON. 

SNOW WILL THEN BEGIN TO TAPER OFF OVERNIGHT...THOUGH BITTERLY
COLD TEMPERATURES AND STRONG GUSTY WINDS WILL CONTINUE THROUGH THE
DAY SUNDAY. THIS COMBINATION WILL RESULT IN DANGEROUS WIND CHILLS.
STORM TOTAL SNOWFALL AMOUNTS ARE EXPECTED TO BE BETWEEN 12 AND 18
INCHES IN THE HIGHER ELEVATIONS WHILE VALLEY LOCATIONS WILL
RECEIVE 6 TO 8 INCHES THROUGH SUNDAY.

A BLIZZARD WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE
EXPECTED OR OCCURRING. TRAVEL WILL BE EXTREMELY DANGEROUS. DO NOT
TRAVEL. IF YOU MUST TRAVEL...HAVE A WINTER SURVIVAL KIT WITH YOU.
IF YOU GET STRANDED...STAY WITH YOUR VEHICLE.

$$

MTZ001-004-130800-
/O.CON.KMSO.WS.W.0015.081213T0000Z-081214T0000Z/
KOOTENAI/CABINET REGION-LOWER CLARK FORK REGION-
256 PM MST FRI DEC 12 2008

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST
SATURDAY...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST SATURDAY.

SNOW WILL INCREASE THROUGH THIS AFTERNOON...BECOMING MODERATE TO
HEAVY AT TIMES IN THE EVENING AND OVERNIGHT. SNOW WILL CONTINUE
THOUGH GRADUALLY TAPER OFF THROUGH THE DAY SATURDAY. UP TO 20
INCHES OF TOTAL SNOWFALL IS LIKELY IN THE MOUNTAINS OF NORTHWEST
MONTANA...WHILE VALLEY LOCATIONS ARE EXPECTED TO RECEIVE 6 TO 8
INCHES TOTAL SNOWFALL BY SATURDAY. 

IN ADDITION TO ACCUMULATING SNOW...COLD AIR WILL SURGE ACROSS THE
CONTINENTAL DIVIDE CREATING LOCAL AREAS OF BLOWING AND DRIFTING
SNOW. POOR VISIBILITIES CAN BE EXPECTED IN AREAS OF BLOWING SNOW
AND CAN LEAD TO WHITEOUT CONDITIONS...MAKING TRAVEL DANGEROUS. AS
SNOW TAPERS OFF SATURDAY...LOOK FOR FALLING TEMPERATURES AND
STRONG WINDS RESULTING IN DANGEROUS WIND CHILLS THROUGH SUNDAY.

THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE.

$$

IDZ005-130800-
/O.CON.KMSO.WS.W.0015.081213T0000Z-081214T1800Z/
NORTHERN CLEARWATER MOUNTAINS-
156 PM PST FRI DEC 12 2008

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM PST
SUNDAY...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM PST SUNDAY. 

SNOW WILL BE MODERATE TO HEAVY AT TIMES THIS AFTERNOON AND
OVERNIGHT. SNOW IS EXPECTED TO CONTINUE INTO SUNDAY WITH TOTAL
ACCUMULATIONS OF UP TO 2 FEET POSSIBLE OVER THE HIGHER TERRAIN AND
5 TO 8 INCHES IN THE VALLEYS. ADDITIONALLY... NORTHEAST TO EAST
WINDS AT 15 TO 20 MPH ARE EXPECTED TO DEVELOP BY SATURDAY NIGHT AS
ARCTIC AIR PUSHES WESTWARD INTO THE AREA. THIS WILL CREATE AREAS
OF BLOWING AND DRIFTING SNOW WITH LOCAL WHITEOUT CONDITIONS
POSSIBLE.

THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE.

$$

IDZ006-130800-
/O.CON.KMSO.WS.W.0015.081213T0000Z-081214T1800Z/
SOUTHERN CLEARWATER MOUNTAINS-
156 PM PST FRI DEC 12 2008

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM PST
SUNDAY...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM PST SUNDAY. 

SNOW WILL DEVELOP LATE THIS AFTERNOON...BECOMING MODERATE TO
HEAVY AT TIMES. SNOW IS EXPECTED TO CONTINUE INTO SUNDAY WITH
TOTAL ACCUMULATIONS OF UP TO 2 FEET POSSIBLE OVER THE HIGHER
TERRAIN AND 5 TO 8 INCHES EXPECTED IN THE VALLEYS. ADDITIONALLY...
NORTHEAST TO EAST WINDS AT 15 TO 20 MPH ARE EXPECTED TO DEVELOP BY
SATURDAY NIGHT AS ARCTIC AIR PUSHES WESTWARD INTO THE AREA. THIS
WILL CREATE AREAS OF BLOWING AND DRIFTING SNOW WITH LOCAL WHITEOUT
CONDITIONS POSSIBLE.

THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE.

$$

MTZ006-007-043-130800-
/O.CON.KMSO.WS.W.0015.081213T0600Z-081214T1200Z/
BITTERROOT/SAPPHIRE MOUNTAINS-BUTTE/BLACKFOOT REGION-
POTOMAC/SEELEY LAKE REGION-
256 PM MST FRI DEC 12 2008

...WINTER STORM WARNING REMAINS IN EFFECT FROM 11 PM THIS EVENING
TO 5 AM MST SUNDAY...

A WINTER STORM WARNING REMAINS IN EFFECT FROM 11 PM THIS EVENING
TO 5 AM MST SUNDAY. 

SNOW WILL DEVELOP TONIGHT...BECOMING MODERATE TO HEAVY AT TIMES.
IN ADDITION TO ACCUMULATING SNOW...COLD AIR WILL SURGE ACROSS THE
CONTINENTAL DIVIDE CREATING AREAS OF BLOWING AND DRIFTING SNOW ON
SATURDAY. ALTHOUGH SNOW IS EXPECTED TO TAPER OFF SATURDAY
NIGHT...STRONG EAST TO NORTHEAST WINDS AND VERY COLD TEMPERATURES
WILL COMBINE FOR DANGEROUS WIND CHILLS.

THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE.

$$

MTZ005-130800-
/O.CON.KMSO.WW.Y.0017.081213T0600Z-081214T1200Z/
MISSOULA/BITTERROOT VALLEYS-
256 PM MST FRI DEC 12 2008

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 11 PM THIS
EVENING TO 5 AM MST SUNDAY...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 11 PM THIS
EVENING TO 5 AM MST SUNDAY. 

SNOW IS EXPECTED TO DEVELOP TONIGHT...POSSIBLY MODERATE TO HEAVY
IN INTENSITY FROM AROUND MIDNIGHT TO DAYBREAK. SNOW AMOUNTS WILL
GENERALLY RANGE FROM 2 TO 4 INCHES...BUT THE SURROUNDING
FOOTHILLS AND BENCHES COULD SEE UP TO 7 INCHES.

COLD AIR WILL SURGE ACROSS THE CONTINENTAL DIVIDE CREATING AREAS
OF BLOWING AND DRIFTING SNOW ON SATURDAY. HOWEVER...THIS EASTERLY
FLOW IS A DRIER PATTERN FOR THE VALLEY SO THE SNOW SHOULD BEGIN
TO TAPER OFF. THE WEATHER CONCERN WILL THEN TRANSITION TO VERY
COLD TEMPERATURES AND DANGEROUS WIND CHILLS SATURDAY AFTERNOON
AND ESPECIALLY SATURDAY NIGHT. WIND CHILL TEMPERATURES WILL BEGIN
TO DROP BELOW ZERO SATURDAY EVENING...AND RANGE FROM 10 BELOW TO
20 BELOW THROUGH THE NIGHT. THEY WILL LIKELY GET EVEN COLDER
SUNDAY NIGHT.

THIS WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY
ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING.

$$

IDZ009-010-130800-
/O.CON.KMSO.WS.A.0019.081213T1200Z-081214T1200Z/
WESTERN LEMHI COUNTY-EASTERN LEMHI COUNTY-
256 PM MST FRI DEC 12 2008

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

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

AN INCOMING PACIFIC WEATHER SYSTEM HAS THE POTENTIAL TO PRODUCE
MODERATE TO HEAVY SNOW ACCUMULATIONS IN LEMHI COUNTY...
PARTICULARLY FROM NORTH FORK TO LOST TRAIL PASS. LATE SATURDAY AN
ARCTIC AIR MASS WILL PUSH UP AGAINST THE CONTINENTAL DIVIDE AND
POSSIBLY SPILL INTO THE COUNTY AS WELL. HOWEVER...IT NOW LOOKS
LIKE IT WILL REMAIN ALONG THE NORTHERN AND EASTERN BOUNDARIES.
THIS SHOULD RESTRICT BLOWING SNOW AND LOCAL WHITEOUT CONDITIONS
TO AREAS AROUND LOST TRAIL...BANNOCK...AND LEMHI PASSES.

A WINTER STORM WATCH MEANS THERE IS A POTENTIAL FOR SIGNIFICANT
SNOW OR BLOWING SNOW THAT MAY IMPACT TRAVEL. CONTINUE TO MONITOR
THE LATEST FORECASTS.

$$

IDZ007-008-130800-
/O.CON.KMSO.WS.A.0019.081213T1800Z-081214T1800Z/
OROFINO/GRANGEVILLE REGION-LOWER HELLS CANYON/SALMON RIVER REGION-
156 PM PST FRI DEC 12 2008

...WINTER STORM WATCH REMAINS IN EFFECT FROM SATURDAY MORNING
THROUGH SUNDAY MORNING...

A WINTER STORM WATCH REMAINS IN EFFECT FROM SATURDAY MORNING
THROUGH SUNDAY MORNING. 

AS THE ARCTIC AIRMASS MOVES INTO THE CAMAS PRAIRIE AND LOWER
HELLS CANYON REGIONS SATURDAY AFTERNOON...LOCALLY HEAVY SNOW IS
EXPECTED TO DEVELOP AS WINDS BECOME NORTH ALONG AND BEHIND THE
FRONT. IN ADDITION TO ACCUMULATING SNOW...COLD ARCTIC AIR WILL
PUSH INTO THE REGION CREATING AREAS OF BLOWING AND DRIFTING SNOW
SATURDAY NIGHT THROUGH SUNDAY. ALTHOUGH SNOW IS EXPECTED TO TAPER
OFF SUNDAY MORNING...LOCALLY STRONG NORTH WINDS AND VERY COLD AIR
AND THE LIGHT NATURE OF THE FRESH SNOW WILL KEEP BLOWING AND
DRIFTING SNOW IN THE FORECAST ALONG WITH VERY COLD WIND CHILLS.

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.

$$

000 
WWUS45 KMSO 130325
WSWMSO

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE MISSOULA MT
825 PM MST FRI DEC 12 2008

.A STRONG WINTER STORM WILL IMPACT THE NORTHERN ROCKIES THIS
WEEKEND. SNOW HAS ALREADY DEVELOPED ACROSS MUCH OF IDAHO AND
WESTERN MONTANA THIS EVENING. A COLD FRONT WILL MOVE THROUGH IDAHO
AND WESTERN MONTANA TONIGHT. AT THE SAME TIME...ARCTIC AIR WILL
PUSH SOUTHWARD INTO NORTHWEST MONTANA. BLIZZARD CONDITIONS ARE
EXPECTED TO DEVELOP IN GLACIER NATIONAL PARK AND PORTIONS OF THE
FLATHEAD VALLEY BY LATE TONIGHT.

THE ARCTIC AIR WILL CONTINUE ITS SOUTHWARD TREK SATURDAY INVADING
ALL OF WESTERN MONTANA AND MUCH OF NORTH CENTRAL IDAHO. THIS WILL
CAUSE BLOWING AND DRIFTING SNOW RESULTING IN LOCAL WHITEOUT
CONDITIONS...PLUS BITTERLY COLD WIND CHILLS.

THE INFLUX OF ARCTIC AIR OVER WESTERN MONTANA AND PORTIONS OF
NORTH CENTRAL IDAHO WILL CONTINUE THROUGH TUESDAY WITH VERY COLD
TEMPERATURES AND DANGEROUS WIND CHILLS HIGHLIGHTING THE FORECAST.

MTZ003-131130-
/O.EXT.KMSO.BZ.W.0006.081213T0325Z-081214T0000Z/
FLATHEAD/MISSION VALLEYS-
825 PM MST FRI DEC 12 2008

...BLIZZARD WARNING NOW IN EFFECT UNTIL 5 PM MST SATURDAY...

THE BLIZZARD WARNING IS NOW IN EFFECT UNTIL 5 PM MST SATURDAY. 

BLIZZARD CONDITIONS WITH VISIBILITIES LOWERING TO 1/4 MILE ARE
EXPECTED MAINLY NORTH OF FLATHEAD LAKE AND ALONG HIGHWAY
2 THROUGH BAD ROCK CANYON LATE TONIGHT THROUGH SATURDAY.

LOCATIONS FROM FLATHEAD LAKE SOUTH THROUGH THE MISSION VALLEY
WILL EXPERIENCE LOCAL WHITE OUT CONDITIONS POSSIBLE. HOWEVER...
WINDS ARE NOT EXPECTED TO BE AS STRONG AND THUS WIDESPREAD
BLIZZARD CONDITIONS ARE NOT EXPECTED.

SNOW IS EXPECTED TO BE MODERATE TO HEAVY AT TIMES OVERNIGHT. IN
ADDITION TO ACCUMULATING SNOW...COLD AIR WILL SURGE ACROSS THE
CONTINENTAL DIVIDE CREATING NORTHEAST WINDS AT 25 TO 35 MPH WITH
GUSTS TO 40 MPH POSSIBLE.

STORM TOTAL SNOWFALL AMOUNTS ARE EXPECTED TO BE BETWEEN 15 AND
20 INCHES IN HIGHER ELEVATIONS WHILE VALLEY LOCATIONS WILL
RECEIVE 6 TO 8 INCHES THROUGH SUNDAY.

SNOW WILL BEGIN TO TAPER OFF SATURDAY NIGHT...THOUGH BITTERLY
COLD TEMPERATURES AND STRONG GUSTY WINDS WILL CONTINUE THROUGH
THE DAY SUNDAY. THIS COMBINATION WILL RESULT IN DANGEROUS WIND
CHILLS.

A BLIZZARD WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE
EXPECTED OR OCCURRING. TRAVEL WILL BE EXTREMELY DANGEROUS. DO NOT
TRAVEL. IF YOU MUST TRAVEL...HAVE A WINTER SURVIVAL KIT WITH YOU.
IF YOU GET STRANDED...STAY WITH YOUR VEHICLE.

$$

MTZ002-131130-
/O.EXT.KMSO.BZ.W.0006.081213T0325Z-081214T0000Z/
WEST GLACIER REGION-
825 PM MST FRI DEC 12 2008

...BLIZZARD WARNING NOW IN EFFECT UNTIL 5 PM MST SATURDAY...

THE BLIZZARD WARNING IS NOW IN EFFECT UNTIL 5 PM MST SATURDAY. 

SNOW IS EXPECTED TO BE MODERATE TO HEAVY AT TIMES OVERNIGHT. IN
ADDITION TO ACCUMULATING SNOW...COLD AIR WILL SURGE ACROSS THE
CONTINENTAL DIVIDE CREATING NORTHEAST WINDS AT 25 TO 35 MPH WITH
GUSTS TO 40 MPH POSSIBLE. THE WINDS COUPLED WITH THE SNOW AND
BLOWING SNOW WILL RESULT IN BLIZZARD CONDITIONS WITH VISIBILITIES
LOWERING TO 1/4 MILE... MAINLY ALONG HIGHWAY 2 BETWEEN WEST
GLACIER AND MARIAS PASS...AND ALSO ALONG ROUTE 486 NORTH TO
POLEBRIDGE. BLIZZARD CONDITIONS ARE EXPECTED TO LAST INTO SATURDAY
AFTERNOON.

SNOW WILL THEN BEGIN TO TAPER OFF OVERNIGHT...THOUGH BITTERLY
COLD TEMPERATURES AND STRONG GUSTY WINDS WILL CONTINUE THROUGH
THE DAY SUNDAY. THIS COMBINATION WILL RESULT IN DANGEROUS WIND
CHILLS. STORM TOTAL SNOWFALL AMOUNTS ARE EXPECTED TO BE BETWEEN
12 AND 18 INCHES IN THE HIGHER ELEVATIONS WHILE VALLEY LOCATIONS
WILL RECEIVE 6 TO 8 INCHES THROUGH SUNDAY.

A BLIZZARD WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE
EXPECTED OR OCCURRING. TRAVEL WILL BE EXTREMELY DANGEROUS. DO NOT
TRAVEL. IF YOU MUST TRAVEL...HAVE A WINTER SURVIVAL KIT WITH YOU.
IF YOU GET STRANDED...STAY WITH YOUR VEHICLE.

$$

MTZ006-007-043-131130-
/O.EXT.KMSO.WS.W.0015.081213T0325Z-081214T1200Z/
BITTERROOT/SAPPHIRE MOUNTAINS-BUTTE/BLACKFOOT REGION-
POTOMAC/SEELEY LAKE REGION-
825 PM MST FRI DEC 12 2008

...WINTER STORM WARNING NOW IN EFFECT UNTIL 5 AM MST SUNDAY...

THE WINTER STORM WARNING IS NOW IN EFFECT UNTIL 5 AM MST SUNDAY. 

SNOW WILL BECOME MODERATE TO HEAVY AT TIMES OVERNIGHT. IN
ADDITION TO ACCUMULATING SNOW...COLD AIR WILL SURGE ACROSS THE
CONTINENTAL DIVIDE CREATING AREAS OF BLOWING AND DRIFTING SNOW ON
SATURDAY. ALTHOUGH SNOW IS EXPECTED TO TAPER OFF SATURDAY NIGHT...
STRONG EAST TO NORTHEAST WINDS AND VERY COLD TEMPERATURES WILL
COMBINE FOR DANGEROUS WIND CHILLS.

THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE.

$$

MTZ001-004-131130-
/O.CON.KMSO.WS.W.0015.000000T0000Z-081214T0000Z/
KOOTENAI/CABINET REGION-LOWER CLARK FORK REGION-
825 PM MST FRI DEC 12 2008

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST
SATURDAY...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST SATURDAY.

SNOW WILL BE MODERATE TO HEAVY AT TIMES OVERNIGHT. SNOW WILL
CONTINUE THOUGH GRADUALLY TAPER OFF THROUGH THE DAY SATURDAY. UP
TO 20 INCHES OF TOTAL SNOWFALL IS LIKELY IN THE MOUNTAINS OF
NORTHWEST MONTANA...WHILE VALLEY LOCATIONS ARE EXPECTED TO RECEIVE
6 TO 8 INCHES TOTAL SNOWFALL BY SATURDAY.

IN ADDITION TO ACCUMULATING SNOW...COLD AIR WILL SURGE ACROSS THE
CONTINENTAL DIVIDE CREATING LOCAL AREAS OF BLOWING AND DRIFTING
SNOW. POOR VISIBILITIES CAN BE EXPECTED IN AREAS OF BLOWING SNOW
AND CAN LEAD TO WHITEOUT CONDITIONS...MAKING TRAVEL DANGEROUS. AS
SNOW TAPERS OFF SATURDAY...LOOK FOR FALLING TEMPERATURES AND
STRONG WINDS RESULTING IN DANGEROUS WIND CHILLS THROUGH SUNDAY.

THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE.

$$

IDZ005-131130-
/O.CON.KMSO.WS.W.0015.000000T0000Z-081214T1800Z/
NORTHERN CLEARWATER MOUNTAINS-
725 PM PST FRI DEC 12 2008

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM PST
SUNDAY...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM PST SUNDAY. 

SNOW WILL BE MODERATE TO HEAVY AT TIMES OVERNIGHT. SNOW IS
EXPECTED TO CONTINUE SATURDAY AND INTO SUNDAY WITH TOTAL
ACCUMULATIONS OF UP TO 2 FEET POSSIBLE OVER THE HIGHER TERRAIN AND
5 TO 8 INCHES IN THE VALLEYS. ADDITIONALLY... NORTHEAST TO EAST
WINDS AT 15 TO 20 MPH ARE EXPECTED TO DEVELOP BY SATURDAY NIGHT AS
ARCTIC AIR PUSHES WESTWARD INTO THE AREA. THIS WILL CREATE AREAS
OF BLOWING AND DRIFTING SNOW WITH LOCAL WHITEOUT CONDITIONS
POSSIBLE.

THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE.

$$

IDZ006-131130-
/O.CON.KMSO.WS.W.0015.000000T0000Z-081214T1800Z/
SOUTHERN CLEARWATER MOUNTAINS-
725 PM PST FRI DEC 12 2008

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM PST
SUNDAY...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM PST SUNDAY. 

SNOW WILL BE MODERATE TO HEAVY AT TIMES OVERNIGHT. SNOW IS
EXPECTED TO CONTINUE SATURDAY AND INTO SUNDAY WITH TOTAL
ACCUMULATIONS OF UP TO 2 FEET POSSIBLE OVER THE HIGHER TERRAIN AND
5 TO 8 INCHES EXPECTED IN THE VALLEYS. ADDITIONALLY...NORTHEAST
TO EAST WINDS AT 15 TO 20 MPH ARE EXPECTED TO DEVELOP BY SATURDAY
NIGHT AS ARCTIC AIR PUSHES WESTWARD INTO THE AREA. THIS WILL
CREATE AREAS OF BLOWING AND DRIFTING SNOW WITH LOCAL WHITEOUT
CONDITIONS POSSIBLE.

THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE.

$$

MTZ005-131130-
/O.EXT.KMSO.WW.Y.0017.081213T0325Z-081214T1200Z/
MISSOULA/BITTERROOT VALLEYS-
825 PM MST FRI DEC 12 2008

...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 5 AM MST SUNDAY...

THE WINTER WEATHER ADVISORY IS NOW IN EFFECT UNTIL 5 AM MST
SUNDAY. 

PERIODS OF LIGHT SNOW TONIGHT...POSSIBLY MODERATE TO HEAVY IN
INTENSITY FROM AROUND MIDNIGHT TO DAYBREAK. SNOW AMOUNTS WILL
GENERALLY RANGE FROM 2 TO 4 INCHES...BUT THE SURROUNDING FOOTHILLS
AND BENCHES COULD SEE UP TO 7 INCHES.

COLD AIR WILL SURGE ACROSS THE CONTINENTAL DIVIDE CREATING AREAS
OF BLOWING AND DRIFTING SNOW ON SATURDAY. HOWEVER...THIS EASTERLY
FLOW IS A DRIER PATTERN FOR THE VALLEY SO THE SNOW SHOULD BEGIN
TO TAPER OFF. THE WEATHER CONCERN WILL THEN TRANSITION TO VERY
COLD TEMPERATURES AND DANGEROUS WIND CHILLS SATURDAY AFTERNOON
AND ESPECIALLY SATURDAY NIGHT. WIND CHILL TEMPERATURES WILL BEGIN
TO DROP BELOW ZERO SATURDAY EVENING...AND RANGE FROM 10 BELOW TO
20 BELOW THROUGH THE NIGHT. THEY WILL LIKELY GET EVEN COLDER
SUNDAY NIGHT.

THIS WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY
ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING.

$$

IDZ009-010-131130-
/O.CON.KMSO.WS.A.0019.081213T1200Z-081214T1200Z/
WESTERN LEMHI COUNTY-EASTERN LEMHI COUNTY-
825 PM MST FRI DEC 12 2008

...WINTER STORM WATCH REMAINS IN EFFECT FROM 5 AM MST SATURDAY
THROUGH LATE SATURDAY NIGHT...

A WINTER STORM WATCH REMAINS IN EFFECT FROM 5 AM MST SATURDAY
THROUGH LATE SATURDAY NIGHT. 

AN INCOMING PACIFIC WEATHER SYSTEM HAS THE POTENTIAL TO PRODUCE
MODERATE TO HEAVY SNOW ACCUMULATIONS IN LEMHI COUNTY...
PARTICULARLY FROM NORTH FORK TO LOST TRAIL PASS. LATE SATURDAY AN
ARCTIC AIR MASS WILL PUSH UP AGAINST THE CONTINENTAL DIVIDE AND
POSSIBLY SPILL INTO THE COUNTY AS WELL. HOWEVER...IT NOW LOOKS
LIKE IT WILL REMAIN ALONG THE NORTHERN AND EASTERN BOUNDARIES.
THIS SHOULD RESTRICT BLOWING SNOW AND LOCAL WHITEOUT CONDITIONS
TO AREAS AROUND LOST TRAIL...BANNOCK...AND LEMHI PASSES.

A WINTER STORM WATCH MEANS THERE IS A POTENTIAL FOR SIGNIFICANT
SNOW OR BLOWING SNOW THAT MAY IMPACT TRAVEL. CONTINUE TO MONITOR
THE LATEST FORECASTS.

$$

IDZ007-008-131130-
/O.CON.KMSO.WS.A.0019.081213T1800Z-081214T1800Z/
OROFINO/GRANGEVILLE REGION-LOWER HELLS CANYON/SALMON RIVER REGION-
725 PM PST FRI DEC 12 2008

...WINTER STORM WATCH REMAINS IN EFFECT FROM SATURDAY MORNING
THROUGH SUNDAY MORNING...

A WINTER STORM WATCH REMAINS IN EFFECT FROM SATURDAY MORNING
THROUGH SUNDAY MORNING. 

AS THE ARCTIC AIRMASS MOVES INTO THE CAMAS PRAIRIE AND LOWER
HELLS CANYON REGIONS SATURDAY AFTERNOON...LOCALLY HEAVY SNOW IS
EXPECTED TO DEVELOP AS WINDS BECOME NORTH ALONG AND BEHIND THE
FRONT. IN ADDITION TO ACCUMULATING SNOW...COLD ARCTIC AIR WILL
PUSH INTO THE REGION CREATING AREAS OF BLOWING AND DRIFTING SNOW
SATURDAY NIGHT THROUGH SUNDAY. ALTHOUGH SNOW IS EXPECTED TO TAPER
OFF SUNDAY MORNING...LOCALLY STRONG NORTH WINDS AND VERY COLD AIR
AND THE LIGHT NATURE OF THE FRESH SNOW WILL KEEP BLOWING AND
DRIFTING SNOW IN THE FORECAST ALONG WITH VERY COLD WIND CHILLS.

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.

$$

000 
WWUS45 KMSO 131127
WSWMSO

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE MISSOULA MT
427 AM MST SAT DEC 13 2008

.A STRONG WINTER STORM WILL CONTINUE TO IMPACT THE NORTHERN
ROCKIES THIS WEEKEND. SNOW HAS ALREADY DEVELOPED ACROSS MUCH OF
IDAHO AND WESTERN MONTANA...BUT WILL GRADUALLY TAPER OFF ACROSS
WESTERN MONTANA FROM NORTH TO SOUTH THIS AFTERNOON. ADDITIONALLY...ARCTIC
AIR WILL PUSH SOUTHWARD INTO NORTHWEST MONTANA. BLIZZARD
CONDITIONS HAVE DEVELOPED IN GLACIER NATIONAL PARK AND PORTIONS OF
THE NORTHERN FLATHEAD VALLEY AND ARE EXPECTED TO CONTINUE THROUGH
THIS MORNING.

THE ARCTIC AIR WILL CONTINUE ITS SOUTHWARD TREK...INVADING ALL OF
WESTERN MONTANA AND MUCH OF NORTH CENTRAL IDAHO BY THIS EVENING. THIS
WILL CAUSE BLOWING AND DRIFTING SNOW RESULTING IN LOCAL WHITEOUT
CONDITIONS...PLUS BITTERLY COLD WIND CHILLS.

THE INFLUX OF ARCTIC AIR OVER WESTERN MONTANA AND PORTIONS OF
NORTH CENTRAL IDAHO WILL CONTINUE THROUGH TUESDAY WITH VERY COLD
TEMPERATURES AND DANGEROUS WIND CHILLS HIGHLIGHTING THE FORECAST.

IDZ007-008-132230-
/O.UPG.KMSO.WS.A.0019.081213T1800Z-081214T1800Z/
/O.EXB.KMSO.WS.W.0015.081213T1800Z-081214T1800Z/
OROFINO/GRANGEVILLE REGION-LOWER HELLS CANYON/SALMON RIVER REGION-
327 AM PST SAT DEC 13 2008

...WINTER STORM WARNING IN EFFECT FROM 10 AM THIS MORNING TO
10 AM PST SUNDAY...

THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WINTER
STORM WARNING FOR SNOW AND WIND...WHICH IS IN EFFECT
FROM 10 AM THIS MORNING TO 10 AM PST SUNDAY. THE WINTER STORM
WATCH IS NO LONGER IN EFFECT. 

STORM TOTAL SNOW ACCUMULATION OF 8 TO 10 INCHES IS EXPECTED IN
THE MOUNTAINS WITH 5 TO 8 INCHES EXPECTED IN THE
VALLEYS BY SUNDAY MORNING...ESPECIALLY OVER THE CAMAS PRAIRIE. IN
ADDITION TO ACCUMULATING SNOW...COLD ARCTIC AIR WILL PUSH INTO THE
REGION CREATING NORTH TO NORTHEAST WINDS OF 15 TO 20 MPH WITH GUSTS
UP TO 25 MPH. THIS WILL CREATE AREAS OF BLOWING AND DRIFTING SNOW
WITH LOCAL WHITEOUT CONDITIONS POSSIBLE...ESPECIALLY OVER THE
CAMAS PRAIRIE AND ALONG HIGHWAY 95 OVER WHITE BIRD GRADE. ALTHOUGH
SNOW IS EXPECTED TO TAPER OFF SUNDAY MORNING...LOCALLY STRONG
NORTH WINDS...VERY COLD AIR AND THE LIGHT NATURE OF THE FRESH SNOW
WILL KEEP BLOWING AND DRIFTING SNOW IN THE FORECAST ALONG WITH
VERY COLD WIND CHILLS.

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW...
BLOWING SNOW...OR FREEZING RAIN ARE EXPECTED OR OCCURRING. STRONG
WINDS AND DANGEROUS WIND CHILLS ARE ALSO POSSIBLE.  THIS WILL
MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE.

$$

MTZ003-132230-
/O.CON.KMSO.BZ.W.0006.000000T0000Z-081214T0000Z/
FLATHEAD/MISSION VALLEYS-
427 AM MST SAT DEC 13 2008

...BLIZZARD WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS
AFTERNOON...

A BLIZZARD WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS
AFTERNOON. 

BLIZZARD CONDITIONS WITH VISIBILITIES LOWERING TO 1/4 MILE ARE
EXPECTED TO CONTINUE...MAINLY NORTH OF KALISPELL INCLUDING
HIGHWAY 2 FROM COLUMBIA FALLS TO HUNGRY HORSE THROUGH THIS AFTERNOON.

LOCATIONS FROM KALISPELL SOUTH THROUGH THE MISSION VALLEY
WILL EXPERIENCE LOCAL WHITE OUT CONDITIONS. HOWEVER... WINDS ARE
NOT EXPECTED TO BE AS STRONG AND THUS WIDESPREAD BLIZZARD
CONDITIONS ARE NOT EXPECTED.

ADDITIONAL SNOWFALL AMOUNTS OF 3 TO 6 INCHES IS POSSIBLE IN HIGHER
ELEVATIONS WHILE VALLEY LOCATIONS WILL RECEIVE AN ADDITIONAL 1 TO
2 INCHES THROUGH THIS AFTERNOON. ALTHOUGH SNOW HAS BEGUN TO TAPER
OFF THIS MORNING...COLD AIR WILL CONTINUE TO SURGE ACROSS THE
CONTINENTAL DIVIDE CREATING NORTHEAST WINDS AT 25 TO 35 MPH WITH
GUSTS TO 40 MPH POSSIBLE. THIS WILL CONTINUE TO CAUSE BLOWING AND
DRIFTING SNOW AS WELL AS HAZARDOUS DRIVING CONDITIONS.

BEHIND THE ARCTIC FRONT...BITTERLY COLD TEMPERATURES AND STRONG GUSTY
WINDS WILL CONTINUE THROUGH THE DAY SUNDAY. THIS COMBINATION WILL
RESULT IN DANGEROUS WIND CHILLS.

A BLIZZARD WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE
EXPECTED OR OCCURRING. TRAVEL WILL BE EXTREMELY DANGEROUS. DO NOT
TRAVEL. IF YOU MUST TRAVEL...HAVE A WINTER SURVIVAL KIT WITH YOU.
IF YOU GET STRANDED...STAY WITH YOUR VEHICLE.

$$

MTZ002-132230-
/O.CON.KMSO.BZ.W.0006.000000T0000Z-081214T0000Z/
WEST GLACIER REGION-
427 AM MST SAT DEC 13 2008

...BLIZZARD WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS
AFTERNOON...

A BLIZZARD WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS
AFTERNOON. 

COLD AIR WILL CONTINUE TO SURGE ACROSS THE CONTINENTAL DIVIDE TODAY
CREATING NORTHEAST WINDS AT 25 TO 35 MPH WITH GUSTS TO 40 MPH
POSSIBLE. THE WINDS COUPLED WITH SNOW AND BLOWING SNOW WILL
RESULT IN BLIZZARD CONDITIONS WITH VISIBILITIES LOWERING TO 1/4
MILE...MAINLY ALONG HIGHWAY 2 BETWEEN WEST GLACIER AND MARIAS
PASS...AND ALSO ALONG ROUTE 486 NORTH TO POLEBRIDGE. BLIZZARD
CONDITIONS ARE EXPECTED TO LAST THROUGH THIS AFTERNOON.

SNOW WILL TAPER OFF THROUGH THE MORNING...THOUGH BLOWING AND
DRIFTING SNOW WILL CONTINUE HAZARDOUS DRIVING CONDITIONS. ADDITIONAL 
SNOWFALL AMOUNTS OF 3 TO 6 INCHES IS EXPECTED IN THE
HIGHER ELEVATIONS WHILE VALLEY LOCATIONS WILL RECEIVE AN
ADDITIONAL 1 TO 2 INCHES THROUGH THIS AFTERNOON.

BEHIND THE ARCTIC FRONT...BITTERLY COLD TEMPERATURES AND STRONG GUSTY
WINDS WILL CONTINUE THROUGH THE DAY SUNDAY. THIS COMBINATION WILL
RESULT IN DANGEROUS WIND CHILLS.

A BLIZZARD WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE
EXPECTED OR OCCURRING. TRAVEL WILL BE EXTREMELY DANGEROUS. DO NOT
TRAVEL. IF YOU MUST TRAVEL...HAVE A WINTER SURVIVAL KIT WITH YOU.
IF YOU GET STRANDED...STAY WITH YOUR VEHICLE.

$$

MTZ001-004-132230-
/O.CON.KMSO.WS.W.0015.000000T0000Z-081214T0000Z/
KOOTENAI/CABINET REGION-LOWER CLARK FORK REGION-
427 AM MST SAT DEC 13 2008

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS
AFTERNOON...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS
AFTERNOON. 

SNOW WILL CONTINUE THOUGH GRADUALLY TAPER OFF THROUGH THE DAY.
ADDITIONAL SNOW FALL AMOUNTS OF 1 TO 3 INCHES IS EXPECTED IN THE
VALLEYS WITH AN ADDITIONAL 3 TO 6 INCHES POSSIBLE IN THE HIGHER
TERRAIN THROUGH THIS AFTERNOON. 

IN ADDITION TO ACCUMULATING SNOW...COLD AIR WILL SURGE ACROSS THE
CONTINENTAL DIVIDE CREATING LOCAL AREAS OF BLOWING AND DRIFTING
SNOW. POOR VISIBILITIES CAN BE EXPECTED IN AREAS OF BLOWING SNOW
AND CAN LEAD TO WHITEOUT CONDITIONS...MAKING TRAVEL DANGEROUS. AS
SNOW TAPERS OFF...LOOK FOR FALLING TEMPERATURES AND STRONG WINDS
RESULTING IN DANGEROUS WIND CHILLS THROUGH SUNDAY.

THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE.

$$

IDZ005-132230-
/O.CON.KMSO.WS.W.0015.000000T0000Z-081214T1800Z/
NORTHERN CLEARWATER MOUNTAINS-
327 AM PST SAT DEC 13 2008

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM PST
SUNDAY...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM PST SUNDAY. 

SNOW...MODERATE TO HEAVY AT TIMES...IS EXPECTED TO CONTINUE
INTO SUNDAY WITH TOTAL ACCUMULATIONS OF UP TO 2 FEET POSSIBLE
OVER THE HIGHER TERRAIN AND 5 TO 8 INCHES IN THE VALLEYS.
ADDITIONALLY... NORTHEAST TO EAST WINDS AT 15 TO 20 MPH ARE
EXPECTED TO DEVELOP BY  TONIGHT AS ARCTIC AIR PUSHES WESTWARD INTO
THE AREA. THIS WILL CREATE AREAS OF BLOWING AND DRIFTING SNOW WITH
LOCAL WHITEOUT CONDITIONS POSSIBLE.

THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE.

$$

IDZ006-132230-
/O.CON.KMSO.WS.W.0015.000000T0000Z-081214T1800Z/
SOUTHERN CLEARWATER MOUNTAINS-
327 AM PST SAT DEC 13 2008

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM PST
SUNDAY...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM PST SUNDAY. 

SNOW...MODERATE TO HEAVY AT TIMES...IS EXPECTED TO CONTINUE
INTO SUNDAY WITH TOTAL ACCUMULATIONS OF UP TO 2 FEET POSSIBLE
OVER THE HIGHER TERRAIN AND 5 TO 8 INCHES IN THE VALLEYS.
ADDITIONALLY... NORTHEAST TO EAST WINDS AT 15 TO 20 MPH ARE
EXPECTED TO DEVELOP BY TONIGHT AS ARCTIC AIR PUSHES WESTWARD INTO
THE AREA. THIS WILL CREATE AREAS OF BLOWING AND DRIFTING SNOW WITH
LOCAL WHITEOUT CONDITIONS POSSIBLE.

THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE.

$$

MTZ006-007-043-132230-
/O.CON.KMSO.WS.W.0015.000000T0000Z-081214T1200Z/
BITTERROOT/SAPPHIRE MOUNTAINS-BUTTE/BLACKFOOT REGION-
POTOMAC/SEELEY LAKE REGION-
427 AM MST SAT DEC 13 2008

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST SUNDAY...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST SUNDAY. 

SNOW WILL REMAIN MODERATE TO HEAVY AT TIMES THROUGH THIS AFTERNOON.
ADDITIONAL SNOW AMOUNTS OF 5 TO 8 INCHES IS EXPECTED OVER THE
HIGHER TERRAIN WITH ADDITIONAL AMOUNTS OF 2 TO 4 INCHES IN THE VALLEYS.
IN ADDITION TO ACCUMULATING SNOW...COLD AIR WILL SURGE ACROSS THE
CONTINENTAL DIVIDE CREATING AREAS OF BLOWING AND DRIFTING SNOW.
ALTHOUGH SNOW IS EXPECTED TO TAPER OFF TONIGHT...STRONG EAST TO
NORTHEAST WINDS AND VERY COLD TEMPERATURES WILL COMBINE FOR
DANGEROUS WIND CHILLS THROUGH SUNDAY.

THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE.

$$

IDZ009-010-132230-
/O.UPG.KMSO.WS.A.0019.081213T1200Z-081214T1200Z/
/O.EXB.KMSO.WW.Y.0017.081213T1200Z-081214T1200Z/
WESTERN LEMHI COUNTY-EASTERN LEMHI COUNTY-
427 AM MST SAT DEC 13 2008

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 5 AM MST SUNDAY...

THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT
UNTIL 5 AM MST SUNDAY. THE WINTER STORM WATCH IS NO LONGER IN
EFFECT. 

AN INCOMING PACIFIC WEATHER SYSTEM WILL PRODUCE TOTAL SNOW
ACCUMULATIONS OF 6 TO 8 INCHES IS EXPECTED OVER THE HIGHER TERRAIN
WITH 2 TO 4 INCHES IN THE VALLEYS... PARTICULARLY FROM NORTH FORK
TO LOST TRAIL PASS. AN ARCTIC AIR MASS WILL PUSH UP AGAINST THE
CONTINENTAL DIVIDE THIS AFTERNOON AND SPILL INTO THE REGION. THE
EAST WIND THAT RESULTS WILL LEAD TO AREAS OF BLOWING AND DRIFTING
SNOW WITH LOCAL WHITEOUT CONDITIONS EXPECTED AROUND LOST
TRAIL...BANNOCK...AND LEMHI PASSES.

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW...BLOWING
SNOW...OR FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE
PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE
CAUTION WHILE DRIVING.

$$

MTZ005-132230-
/O.CON.KMSO.WW.Y.0017.000000T0000Z-081214T1200Z/
MISSOULA/BITTERROOT VALLEYS-
427 AM MST SAT DEC 13 2008

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST
SUNDAY...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST
SUNDAY. 

PERIODS OF LIGHT TO MODERATE SNOW WILL CONTINUE THROUGH THE DAY.
TOTAL SNOW AMOUNTS WILL GENERALLY RANGE FROM 2 TO 4 INCHES...BUT
THE SURROUNDING FOOTHILLS AND BENCHES COULD SEE UP TO 7 INCHES.

COLD AIR WILL SURGE ACROSS THE CONTINENTAL DIVIDE CREATING AREAS
OF BLOWING AND DRIFTING SNOW BEGINNING LATE THIS MORNING. HOWEVER...THIS
EASTERLY FLOW IS A DRIER PATTERN FOR THE VALLEY SO THE SNOW SHOULD
BEGIN TO TAPER OFF. THE WEATHER CONCERN WILL THEN TRANSITION TO
VERY COLD TEMPERATURES AND DANGEROUS WIND CHILLS THIS AFTERNOON
AND ESPECIALLY TONIGHT. WIND CHILL TEMPERATURES WILL BEGIN
TO DROP BELOW ZERO THIS EVENING...AND RANGE FROM 10 BELOW TO
20 BELOW THROUGH THE NIGHT. THEY WILL LIKELY GET EVEN COLDER
SUNDAY NIGHT.

THIS WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY
ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING.

$$

000 
WWUS45 KMSO 131718
WSWMSO

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE MISSOULA MT
1018 AM MST SAT DEC 13 2008

.COLD AIR CONTINUES TO SURGE INTO THE NORTHERN ROCKIES FROM THE
NORTH AND EAST. THE MAIN SNOW ACCUMULATIONS THROUGH TODAY AND
INTO TONIGHT WILL BE OVER IDAHO...WHILE THE WEATHER FOCUS OVER
WESTERN MONTANA WILL SHIFT TO REDUCED VISIBILITIES DUE TO BLOWING
SNOW...AS WELL AS VERY COLD TEMPERATURES AND WIND CHILLS.

MTZ002-003-140300-
/O.CAN.KMSO.BZ.W.0006.000000T0000Z-081214T0000Z/
/O.EXB.KMSO.WW.Y.0017.000000T0000Z-081214T0300Z/
WEST GLACIER REGION-FLATHEAD/MISSION VALLEYS-
1018 AM MST SAT DEC 13 2008

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 8 PM MST THIS
EVENING...
...BLIZZARD WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WINTER
WEATHER ADVISORY FOR BLOWING SNOW AND WIND CHILLS...WHICH IS IN
EFFECT UNTIL 8 PM MST THIS EVENING. THE BLIZZARD WARNING HAS BEEN
CANCELLED.

SNOWFALL HAS DIMINISHED ACROSS THE AREA...BUT THE CONTINUED INFLUX
OF COLD AIR FROM EAST OF THE DIVIDE WILL MAINTAIN STRONG WINDS
THROUGH THE DAY AND INTO THE OVERNIGHT PERIOD. DECREASING WIND
CHILL TEMPERATURES WILL BE A CONCERN THROUGHOUT THE AREA WITH
VALUES LOWERING INTO THE 10 BELOW TO 20 BELOW RANGE.

THE BLOWING SNOW PROBLEMS WILL BE MORE LOCALIZED. THE MAIN AREAS
IMPACTED WILL BE ALONG HIGHWAY 2 FROM NEAR MARIAS PASS TO COLUMBIA
FALLS. THE REST OF THE AREA COULD ALSO HAVE INTERMITTENT
VISIBILITIES DOWN TO A QUARTER MILE. SMALL SNOW DRIFTS COULD ALSO
MAKE TRAVEL HAZARDOUS.

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

$$

MTZ001-004-140300-
/O.CAN.KMSO.WS.W.0015.000000T0000Z-081214T0000Z/
/O.EXB.KMSO.WW.Y.0017.000000T0000Z-081214T0300Z/
KOOTENAI/CABINET REGION-LOWER CLARK FORK REGION-
1018 AM MST SAT DEC 13 2008

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 8 PM MST THIS
EVENING...
...WINTER STORM WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WINTER
WEATHER ADVISORY FOR BLOWING SNOW AND WIND CHILLS...WHICH IS IN
EFFECT UNTIL 8 PM MST THIS EVENING. THE WINTER STORM WARNING HAS
BEEN CANCELLED.

SNOWFALL IS DIMINISHING ACROSS THE AREA...BUT THE CONTINUED
INFLUX OF COLD AIR FROM EAST OF THE DIVIDE WILL PRODUCE STRONG
WINDS THROUGH THE DAY AND INTO THE OVERNIGHT PERIOD. DECREASING
WIND CHILL TEMPERATURES WILL BE A CONCERN THROUGHOUT THE AREA WITH
VALUES LOWERING INTO THE 10 BELOW TO 20 BELOW RANGE BY THIS EVENING.

THE BLOWING SNOW PROBLEMS WILL BE MORE LOCALIZED. THE MAIN AREAS
IMPACTED WILL BE ALONG HIGHWAY 2 FROM NEAR KILA TO HAPPYS
INN...BUT OTHER TRAVEL ROUTES IN THE AREA COULD ALSO HAVE
INTERMITTENT VISIBILITIES DOWN TO LESS THAN A QUARTER MILE. SMALL
SNOW DRIFTS COULD ALSO MAKE TRAVEL HAZARDOUS.

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

$$

MTZ006-007-043-140300-
/O.CAN.KMSO.WS.W.0015.000000T0000Z-081214T1200Z/
/O.EXB.KMSO.WW.Y.0017.000000T0000Z-081214T0300Z/
BITTERROOT/SAPPHIRE MOUNTAINS-BUTTE/BLACKFOOT REGION-
POTOMAC/SEELEY LAKE REGION-
1018 AM MST SAT DEC 13 2008

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 8 PM MST THIS
EVENING...
...WINTER STORM WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WINTER
WEATHER ADVISORY FOR BLOWING SNOW AND WIND CHILLS...WHICH IS IN
EFFECT UNTIL 8 PM MST THIS EVENING. THE WINTER STORM WARNING HAS
BEEN CANCELLED.

SNOWFALL HAS DIMINISHED ACROSS THE AREA...BUT THE CONTINUED INFLUX
OF COLD AIR FROM EAST OF THE DIVIDE WILL MAINTAIN STRONG WINDS
THROUGH THE DAY AND INTO THE OVERNIGHT PERIOD. DECREASING WIND
CHILL TEMPERATURES WILL BE A CONCERN THROUGHOUT THE AREA WITH
VALUES LOWERING INTO THE 10 BELOW TO 20 BELOW RANGE.

THE BLOWING SNOW PROBLEMS WILL BE MORE LOCALIZED. TRAVELERS SHOULD
BE PREPARED FOR INTERMITTENT VISIBILITIES OF LESS THAN A QUARTER
MILE...PARTICULARLY IN THE EAST-WEST CORRIDORS. SMALL SNOW DRIFTS
COULD ALSO MAKE TRAVEL HAZARDOUS.

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

$$

IDZ007-008-140415-
/O.CON.KMSO.WS.W.0015.081213T1800Z-081214T1800Z/
OROFINO/GRANGEVILLE REGION-LOWER HELLS CANYON/SALMON RIVER REGION-
918 AM PST SAT DEC 13 2008

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM PST
SUNDAY...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM PST SUNDAY. 

STORM TOTAL SNOW ACCUMULATION OF 8 TO 10 INCHES IS EXPECTED IN
THE MOUNTAINS WITH 5 TO 8 INCHES EXPECTED IN THE VALLEYS BY
SUNDAY MORNING...ESPECIALLY OVER THE CAMAS PRAIRIE. IN ADDITION
TO ACCUMULATING SNOW...COLD ARCTIC AIR WILL PUSH INTO THE REGION
CREATING NORTH TO NORTHEAST WINDS OF 15 TO 20 MPH WITH GUSTS UP
TO 25 MPH. THIS WILL PRODUCE AREAS OF BLOWING AND DRIFTING SNOW
WITH LOCAL WHITEOUT CONDITIONS POSSIBLE...ESPECIALLY OVER THE
CAMAS PRAIRIE AND ALONG HIGHWAY 95 OVER WHITE BIRD GRADE.

ALTHOUGH SNOW IS EXPECTED TO TAPER OFF SUNDAY MORNING...LOCALLY
STRONG NORTH WINDS...VERY COLD AIR AND THE LIGHT NATURE OF THE
FRESH SNOW WILL KEEP BLOWING AND DRIFTING SNOW IN THE FORECAST
ALONG WITH VERY COLD WIND CHILLS.

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW AND BLOWING
SNOW ARE EXPECTED OR OCCURRING. STRONG WINDS AND DANGEROUS WIND
CHILLS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS.

$$

IDZ005-140415-
/O.CON.KMSO.WS.W.0015.000000T0000Z-081214T1800Z/
NORTHERN CLEARWATER MOUNTAINS-
918 AM PST SAT DEC 13 2008

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM PST
SUNDAY...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM PST SUNDAY. 

SNOW...MODERATE TO HEAVY AT TIMES...IS EXPECTED TO CONTINUE INTO
SUNDAY WITH TOTAL ACCUMULATIONS OF UP TO 2 FEET POSSIBLE OVER THE
HIGHER TERRAIN AND 5 TO 8 INCHES IN THE VALLEYS. ADDITIONALLY...
NORTHEAST TO EAST WINDS AT 15 TO 20 MPH ARE EXPECTED TO DEVELOP
BY  TONIGHT AS ARCTIC AIR PUSHES WESTWARD INTO THE AREA. THIS
WILL CREATE AREAS OF BLOWING AND DRIFTING SNOW WITH LOCAL
WHITEOUT CONDITIONS POSSIBLE.

THIS WILL MAKE TRAVEL VERY HAZARDOUS.

$$

IDZ006-140415-
/O.CON.KMSO.WS.W.0015.000000T0000Z-081214T1800Z/
SOUTHERN CLEARWATER MOUNTAINS-
918 AM PST SAT DEC 13 2008

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM PST
SUNDAY...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM PST SUNDAY. 

SNOW...MODERATE TO HEAVY AT TIMES...IS EXPECTED TO SPREAD FROM
THE NORTHERN PART OF IDAHO COUNTY TO THE SOUTH THROUGH THE
DAY WITH TOTAL ACCUMULATIONS OF UP TO 2 FEET POSSIBLE OVER THE
HIGHER TERRAIN AND 5 TO 8 INCHES IN THE VALLEYS. ADDITIONALLY...
NORTHEAST TO EAST WINDS AT 15 TO 20 MPH ARE EXPECTED TO DEVELOP BY
TONIGHT AS ARCTIC AIR PUSHES WESTWARD INTO THE AREA. THIS WILL
CREATE AREAS OF BLOWING AND DRIFTING SNOW WITH LOCAL WHITEOUT
CONDITIONS POSSIBLE.

THIS WILL MAKE TRAVEL VERY HAZARDOUS.

$$

MTZ005-140415-
/O.CON.KMSO.WW.Y.0017.000000T0000Z-081214T1200Z/
MISSOULA/BITTERROOT VALLEYS-
1018 AM MST SAT DEC 13 2008

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST
SUNDAY...

A WINTER WEATHER ADVISORY FOR BLOWING SNOW AND WIND CHILLS IS IN
EFFECT UNTIL 5 AM MST SUNDAY.

SNOWFALL HAS BECOME LIGHT ACROSS THE AREA...BUT THE CONTINUED
INFLUX OF COLD AIR FROM EAST OF THE DIVIDE WILL PRODUCE STRONG
WINDS THROUGH THE DAY AND INTO THE OVERNIGHT PERIOD PARTICULARLY
IN THE MISSOULA AND SOUTHERN BITTERROOT VALLEYS. DECREASING WIND
CHILL TEMPERATURES WILL BE A CONCERN THROUGHOUT THE AREA WITH
VALUES LOWERING INTO THE 10 BELOW TO 20 BELOW RANGE BY LATE THIS
AFTERNOON.

THE BLOWING SNOW PROBLEMS WILL BE MORE LOCALIZED. THE MAIN AREAS
IMPACTED WILL BE ALONG INTERSTATE 90 FROM HELLGATE CANYON THROUGH
THE WESTERN EDGE OF MISSOULA...BUT OTHER TRAVEL ROUTES IN THE AREA
COULD ALSO HAVE INTERMITTENT VISIBILITIES DOWN TO LESS THAN A
QUARTER MILE. SMALL SNOW DRIFTS COULD ALSO MAKE TRAVEL HAZARDOUS.

THIS WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY
ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING.

$$

IDZ009-010-140415-
/O.CON.KMSO.WW.Y.0017.000000T0000Z-081214T1200Z/
WESTERN LEMHI COUNTY-EASTERN LEMHI COUNTY-
1018 AM MST SAT DEC 13 2008

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST
SUNDAY...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST
SUNDAY. 

AN INCOMING PACIFIC WEATHER SYSTEM WILL PRODUCE TOTAL SNOW
ACCUMULATIONS OF 6 TO 8 INCHES OVER THE HIGHER TERRAIN WITH 2 TO
4 INCHES IN THE VALLEYS...PARTICULARLY FROM NORTH FORK TO LOST
TRAIL PASS. AN ARCTIC AIR MASS WILL PUSH UP AGAINST THE
CONTINENTAL DIVIDE AND BEGIN TO SPILL INTO THE REGION. THE EAST
WIND THAT RESULTS WILL LEAD TO AREAS OF BLOWING AND DRIFTING SNOW
WITH LOCAL WHITEOUT CONDITIONS EXPECTED AROUND LOST
TRAIL...BANNOCK...AND LEMHI PASSES.

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

$$

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MISSOULA MT
659 PM MST THU DEC 11 2008

.UPDATE...ISSUED A DENSE FOG ADVISORY FOR THE VALLEYS OF
CLEARWATER/IDAHO COUNTIES (IDZ005-007) AND NORTHWEST MONTANA
(MTZ001-004) FOR TONIGHT AND INTO FRIDAY MORNING.

&&

.DISCUSSION...VALLEY FOG IS EXPECTED TO EXPAND AND THICKEN
OVERNIGHT IN PORTIONS OF NORTHWEST MONTANA AND THE IDAHO
PANHANDLE. AREAS OF DENSE FOG WILL REDUCE VISIBILITIES AT OR BELOW
1/4 MILE...THEREFORE A DENSE FOG ADVISORY HAS BEEN ISSUED FOR
THESE AREAS. NO OTHER CHANGES ARE PLANNED FOR THE FORECAST THIS
EVENING.

&&

.AVIATION...FOG HAS PERSISTED ALL DAY IN SOME VALLEYS OF NORTHWEST
MONTANA AND NORTH CENTRAL IDAHO WITH VISIBILITIES REDUCED TO ONE
QUARTER MILE OR LESS AT TIMES. FOG IS EXPECTED TO BECOME MORE
WIDESPREAD OVERNIGHT IN THE FOG-PRONE VALLEYS OF NORTHWEST
MONTANA AND NORTH CENTRAL IDAHO WITH SUFFICIENT LOW LEVEL MOISTURE
AVAILABLE AND STABLE CONDITIONS AT THE SURFACE. VISIBILITIES WILL BE
LIMITED THROUGH FRIDAY MORNING WITH LOWER TERRAIN OBSCURATIONS
BEFORE FOG DISSIPATES LATE FRIDAY MORNING.

&&

.PREV DISCUSSION... /ISSUED 240 PM MST THU DEC 11 2008/

..MAJOR WINTER STORM AND POTENTIALLY DANGEROUS WINTRY CONDITIONS
THIS WEEKEND...

DISCUSSION...A MAJOR WINTER STORM...OF MAGNITUDE NOT SEEN
RECENTLY...IS EXPECTED TO IMPACT WESTERN MONTANA AND PORTIONS OF
NORTH CENTRAL IDAHO. BECAUSE ALL THAT IS GOING ON...WE ARE GOING TO
BREAK THIS STORM INTO A SEPARATED DISCUSSION OF THE VARIOUS
POTENTIAL HAZARDS.

FIRST...THE BIGGEST SINGLE IMPACT SHOULD BE THE EXTREME COLD AND
LOW WIND CHILLS. MOST OF THE MODELS HAVE COME INTO ALIGNMENT
SHOWING THE BITTER COLD ARCTIC AIR FLOODING INTO NORTHWEST MONTANA
LATE FRIDAY NIGHT AND THEN SOUTHWARD ACROSS THE REST OF WESTERN
MONTANA SATURDAY. THE INTENSITY OF THE COLD AIR INTRUSION SHOULD
SUPPORT STRONG WINDS IN MANY AREAS WITH WIND CHILLS PLUMMETING
INTO THE 15 TO 35 BELOW ZERO RANGE BY SATURDAY NIGHT. THE ARCTIC
FRONT WILL BECOME TEMPORARILY HUNG UP ON THE BITTERROOT
MOUNTAINS...BUT SHOULD CREST THESE MOUNTAINS AS WELL SATURDAY
NIGHT INTO SUNDAY...FLOODING INTO NORTH CENTRAL IDAHO AS WELL. THE
INTENSITY AND DURATION OF THE BITTER COLD ARCTIC AIR IN
COMBINATION WITH THE WIND MAY CREATE DANGEROUS WINTRY CONDITIONS
THIS WEEKEND INTO EARLY NEXT WEEK.

SECOND...DISCUSSION OF SNOW AND POTENTIAL BLIZZARD CONDITIONS.

PRECIPITATION WILL BEGIN FRIDAY AFTERNOON IN NORTHWEST MONTANA
THEN SPREAD SOUTHEAST THROUGH THE EVENING AND OVERNIGHT WITH THE
PACIFIC WEATHER SYSTEM. EXPECT GOOD SNOW PRODUCTION ACROSS
NORTHWEST MONTANA DURING THE LATE EVENING AND OVERNIGHT PERIODS.
FURTHER SOUTH...THE PRECIPITATION WILL START AS A RAIN SNOW
MIX...THEN CHANGE OVER TO ALL SNOW AFTER MIDNIGHT AS THE
ASSOCIATED COLD FRONT MOVES THROUGH. ANOTHER ROUND OF HEAVY SNOW
WILL ACCOMPANY THE ARCTIC FRONT AS IS PUSHES THROUGH WESTERN
MONTANA SATURDAY MORNING. LIGHT SNOW WILL LINGER BEHIND THE
FRONT...BUT ACCUMULATIONS WILL BE DECREASED DRASTICALLY.
HOWEVER...STRONG WINDS COMBINED WITH THE SNOW ALREADY ON THE
GROUND AND LIGHT SNOW...WILL CREATE LOCAL BLIZZARD CONDITIONS
SATURDAY AND SATURDAY NIGHT. WESTERN MONTANA TRAVELS SHOULD BE
PREPARED FOR HAZARDOUS WINTER DRIVING CONDITIONS SATURDAY AND
SATURDAY NIGHT.
THE ARCTIC FRONT WILL TAKE A BIT MORE TIME TO MAKE ITS WAY THROUGH
NORTH CENTRAL IDAHO...BUT IS EXPECTED TO MOVE THROUGH SATURDAY
EVENING. AGAIN A BURST OF MODERATE TO HEAVY SNOW WILL ACCOMPANY
THE ARCTIC FRONT...THEN STEADY SNOW WILL CONTINUE BEHIND THE FRONT
AS UPPER LEVEL SOUTHWEST FLOW WILL KEEP MOISTURE FEED OVER THIS
REGION THROUGH SUNDAY. AGAIN...STRONG NORTH WINDS...FALLING
TEMPERATURES AND SNOW ARE EXPECTED TO MAKE TRAVEL DIFFICULT ACROSS
NORTH CENTRAL IDAHO SATURDAY NIGHT AND SUNDAY. LOCAL BLIZZARD
CONDITIONS ARE POSSIBLE OVER GRANGEVILLE...THE WHITEBIRD AND GREER
GRADES. AS WELL AS TENDOY TO LEMHI IN LEMHI COUNTY. NORTH CENTRAL
IDAHO TRAVELS SHOULD BE PREPARED FOR HAZARDOUS WINTER DRIVING
CONDITIONS SATURDAY NIGHT AND SUNDAY.

TUESDAY AND WEDNESDAY...ALTHOUGH THE COLDEST AIR ALOFT IS EXPECTED
TO MODIFY AND SHIFT TO THE EAST...THE COLD IN THE VALLEYS SHOULD
PERSIST. LONG WINTER NIGHTS AND A MORE STABLE ATMOSPHERE WILL
ALLOW THE BITTER COLD AIR THAT HAS MOVED INTO THE VALLEYS TO
BECOME ANCHORED. IN FACT...THE COLDEST TEMPERATURES MAY NOT BE REALIZED
UNTIL THIS PERIOD. THE GENERAL PATTERN MAY SUPPORT A FEW SNOW
FLURRIES...BUT GENERALLY DRY CONDITIONS...WITH THE BIG NEWS THE
PERSISTENT COLD.

WITHIN THE SHORTEST FORECAST RANGE...TONIGHT...GENERALLY CLEAR
SKIES WILL ALLOW AREAS OF FOG TO EITHER REDEVELOP OR THICKEN THIS
EVENING AND TONIGHT ACROSS MAINLY NORTHWEST MONTANA.

&&

.MSO WATCHES/WARNINGS/ADVISORIES...
MT...WINTER STORM WATCH FROM FRIDAY EVENING THROUGH LATE SATURDAY
     NIGHT FOR BITTERROOT/SAPPHIRE MOUNTAINS-BUTTE/BLACKFOOT
     REGION-MISSOULA/BITTERROOT VALLEYS-POTOMAC/SEELEY LAKE
     REGION.

     DENSE FOG ADVISORY UNTIL 11 AM MST FRIDAY FOR KOOTENAI/CABINET
     REGION-LOWER CLARK FORK REGION.

     WINTER STORM WATCH FROM FRIDAY AFTERNOON THROUGH LATE SATURDAY
     NIGHT FOR FLATHEAD/MISSION VALLEYS-KOOTENAI/CABINET REGION-
     LOWER CLARK FORK REGION-WEST GLACIER REGION.

ID...WINTER STORM WATCH FROM SATURDAY AFTERNOON THROUGH SUNDAY
     AFTERNOON FOR EASTERN LEMHI COUNTY-WESTERN LEMHI COUNTY.

     DENSE FOG ADVISORY UNTIL 10 AM PST FRIDAY FOR NORTHERN
     CLEARWATER MOUNTAINS-OROFINO/GRANGEVILLE REGION.

     WINTER STORM WATCH FROM SATURDAY AFTERNOON THROUGH SUNDAY
     AFTERNOON FOR LOWER HELLS CANYON/SALMON RIVER REGION-
     OROFINO/GRANGEVILLE REGION.

     WINTER STORM WATCH FROM FRIDAY EVENING THROUGH SUNDAY AFTERNOON
     FOR NORTHERN CLEARWATER MOUNTAINS-SOUTHERN CLEARWATER
     MOUNTAINS.

&&

SHORT TERM...MSJ
LONG TERM....BAUCK/MEAD
AVIATION...DEROSA

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE MISSOULA MT
455 AM MST THU DEC 11 2008

IDZ007-008-112200-
OROFINO/GRANGEVILLE REGION-LOWER HELLS CANYON/SALMON RIVER REGION-
355 AM PST THU DEC 11 2008

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

.DAY ONE...TODAY AND TONIGHT

A RIDGE OF HIGH PRESSURE WILL BUILD OVER THE REGION...PRODUCING
GENERALLY FAVORABLE WEATHER CONDITIONS. PLEASE SEE THE FOLLOWING
SEGMENT FOR HAZARDOUS WEATHER INFORMATION.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

AN APPROACHING PACIFIC SYSTEM WILL INCREASE SURFACE PRESSURE
GRADIENTS AND SUBSEQUENTLY PRODUCE STRONG SOUTH WINDS ACROSS THE
GRANGEVILLE AND LOWER HELLS CANYON/SALMON RIVER REGIONS FRIDAY AND
FRIDAY EVENING. A COLD FRONT ASSOCIATED WITH THIS SYSTEM WILL
SWING THROUGH THIS REGION FRIDAY EVENING SWITCHING THE WINDS TO
THE WEST AND ALLOWING WIND SPEEDS TO DECREASE SLIGHTLY.
HOWEVER...MOISTURE AND LIFT ALONG AND BEHIND THE FRONT MAY RESULT
IN MODERATE ACCUMULATING SNOW BEGINNING FRIDAY NIGHT. TRAVEL MAY
BECOME DIFFICULT...MOST NOTABLY OVER WHITEBIRD AND GREER GRADES.

A BIG CHANGE TO MUCH COLDER CONDITIONS IS ALSO EXPECTED...BEGINNING
SATURDAY AND CONTINUING THROUGH TUESDAY. A VERY COLD CANADIAN
AIRMASS WILL SURGE SOUTHWARD AND MAY CAUSE TEMPERATURES TO PLUMMET
FAR BELOW TYPICAL VALUES FOR DECEMBER.

.SPOTTER INFORMATION STATEMENT...

WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.

IDZ009-010-112200-
WESTERN LEMHI COUNTY-EASTERN LEMHI COUNTY-
455 AM MST THU DEC 11 2008

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

.DAY ONE...TODAY AND TONIGHT

A RIDGE OF HIGH PRESSURE WILL BUILD OVER THE REGION...PRODUCING
GENERALLY FAVORABLE WEATHER CONDITIONS. PLEASE SEE THE FOLLOWING
SEGMENT FOR HAZARDOUS WEATHER INFORMATION.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

A BIG CHANGE TO MUCH COLDER CONDITIONS IS EXPECTED BEGINNING
FRIDAY EVENING AND CONTINUING SATURDAY AND SUNDAY...AS FRIGID ARCTIC
AIR SURGES SOUTHWARD OVER THE REGION. THE COLD...CANADIAN AIRMASS
MAY CAUSE TEMPERATURES TO PLUMMET FAR BELOW TYPICAL VALUES FOR
EARLY DECEMBER. IN ADDITION...MOIST PACIFIC AIR IS EXPECTED TO
SPREAD OVER THE REGION BY FRIDAY NIGHT AND SATURDAY...SUPPORTING A
PERIOD OF POTENTIALLY MODERATE TO HEAVY SNOWFALL.

.SPOTTER INFORMATION STATEMENT...

WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.