Snow Advisory 49, NWS Missoula, MT

000 
WWUS45 KMSO 292246 CCA
WSWMSO

URGENT - WINTER WEATHER MESSAGE...CORRECTED
NATIONAL WEATHER SERVICE MISSOULA MT
338 PM MST SAT DEC 29 2007

.A STRONG AND MOIST NORTHWESTERLY FLOW PATTERN WILL CONTINUE TO
PUSH WINTER WEATHER ACROSS THE AREA THROUGH SUNDAY AFTERNOON.
HEAVY SNOWFALL AMOUNTS ARE EXPECTED IN THE MOUNTAINS...WITH
LESSER AMOUNTS EXPECTED IN THE VALLEYS. WINDS WILL INTENSIFY ON
SUNDAY ACROSS SOME OF THE HIGHER TERRAIN CREATING BLOWING AND
DRIFTING SNOWFALL IN ADDITION TO THE FALLING SNOW. 

MTZ007-292345-
/O.CAN.KMSO.HS.W.0024.071230T0000Z-071231T0600Z/
BUTTE/BLACKFOOT REGION-
338 PM MST SAT DEC 29 2007

...HEAVY SNOW WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN MISSOULA HAS CANCELLED THE HEAVY
SNOW WARNING. FORECASTED SNOWFALL AMOUNTS NO LONGER WARRANT A
WARNING. A SNOW ADVISORY MAY HAVE TO BE ISSUED FOR THIS
TIME FRAME...BUT CONFIDENCE IS NOT HIGH ENOUGH TO ISSUE ONE AT THIS TIME.

$$

IDZ010-292345-
/O.CAN.KMSO.HS.W.0024.000000T0000Z-071231T0000Z/
EASTERN LEMHI COUNTY-
338 PM MST SAT DEC 29 2007

...HEAVY SNOW WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN MISSOULA HAS CANCELLED THE HEAVY
SNOW WARNING. FORECASTED SNOWFALL AMOUNTS NO LONGER WARRANT A
WARNING. A SNOW ADVISORY MAY HAVE TO BE ISSUED FOR THIS
TIME FRAME...BUT CONFIDENCE IS NOT HIGH ENOUGH TO ISSUE ONE AT THIS TIME.

$$

MTZ001-300430-
/O.CON.KMSO.HS.W.0024.000000T0000Z-071231T0000Z/
KOOTENAI/CABINET REGION-
338 PM MST SAT DEC 29 2007

...HEAVY SNOW WARNING REMAINS IN EFFECT UNTIL 5 PM MST SUNDAY...

A HEAVY SNOW WARNING REMAINS IN EFFECT UNTIL 5 PM MST SUNDAY. 

ALTHOUGH SNOW HAS TAPERED OFF TODAY...ANOTHER POTENT
WEATHER SYSTEM IS EXPECTED TO MOVE IN THIS EVENING. THIS SYSTEM
WILL BRING MORE SNOW AND WINTER WEATHER. TOTAL SNOWFALL AMOUNTS
OF 8 TO 13 INCHES WITH LOCAL AMOUNTS UP TO 18 INCHES ABOVE
3000 FEET ARE EXPECTED BY LATE SUNDAY AFTERNOON. WEST FACING
MOUNTAIN SLOPES WILL BE THE MOST IMPACTED BY THIS EVENT.

A HEAVY SNOW WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE
EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST
THAT WILL MAKE TRAVEL DANGEROUS.

$$

IDZ005-006-MTZ004-006-300430-
/O.COR.KMSO.WS.W.0011.000000T0000Z-071231T0000Z/
NORTHERN CLEARWATER MOUNTAINS-SOUTHERN CLEARWATER MOUNTAINS-
LOWER CLARK FORK REGION-BITTERROOT/SAPPHIRE MOUNTAINS-
338 PM MST SAT DEC 29 2007 /238 PM PST SAT DEC 29 2007/

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST /4 PM
PST/ SUNDAY...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST /4 PM
PST/ SUNDAY. 

ALTHOUGH SNOW HAS TAPERED OFF TODAY...ANOTHER POTENT
WEATHER SYSTEM IS EXPECTED TO MOVE IN THIS EVENING. THIS SYSTEM
WILL BRING MORE SNOW AND WINTER WEATHER. TOTAL SNOWFALL AMOUNTS
OF 13 TO 18 INCHES WITH LOCAL AMOUNTS UP TO 24 INCHES ARE EXPECTED
BY LATE SUNDAY AFTERNOON. IN ADDITION...BREEZY WEST TO NORTHWEST
WINDS WILL CREATE AREAS OF BLOWING AND DRIFTING SNOW LATE TONIGHT
THROUGH SUNDAY AFTERNOON. WEST FACING MOUNTAIN SLOPES WILL BE THE
MOST IMPACTED BY THIS EVENT...INCLUDING LOLO AND LOST TRAIL
PASSES.

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW AND
STRONG WINDS ARE EXPECTED. THIS WILL MAKE TRAVEL VERY HAZARDOUS.

$$

MTZ002-043-300430-
/O.COR.KMSO.WS.W.0011.000000T0000Z-071231T0000Z/
WEST GLACIER REGION-POTOMAC/SEELEY LAKE REGION-
338 PM MST SAT DEC 29 2007

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

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

ALTHOUGH SNOW HAS TAPERED OFF TODAY...ANOTHER POTENT
WEATHER SYSTEM IS EXPECTED TO MOVE IN THIS EVENING. THIS SYSTEM
WILL BRING MORE SNOW AND WINTER WEATHER. TOTAL SNOWFALL AMOUNTS
OF 9 TO 15 INCHES WITH LOCAL AMOUNTS UP TO 21 INCHES ARE EXPECTED
BY LATE SUNDAY AFTERNOON ABOVE 4000 FEET. IN ADDITION...BREEZY
WEST TO NORTHWEST WINDS WILL CREATE AREAS OF BLOWING AND DRIFTING
SNOW LATE TONIGHT THROUGH SUNDAY AFTERNOON. WEST FACING MOUNTAIN
SLOPES WILL BE THE MOST IMPACTED BY THIS EVENT... INCLUDING MARIAS
PASS.

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW AND
STRONG WINDS ARE EXPECTED. THIS WILL MAKE TRAVEL VERY HAZARDOUS.

$$

IDZ007-008-300430-
/O.NEW.KMSO.SB.Y.0013.071230T0300Z-071230T1200Z/
OROFINO/GRANGEVILLE REGION-LOWER HELLS CANYON/SALMON RIVER REGION-
238 PM PST SAT DEC 29 2007

...SNOW AND BLOWING SNOW ADVISORY IN EFFECT FROM 7 PM THIS
EVENING TO 4 AM PST SUNDAY...

THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A SNOW AND
BLOWING SNOW ADVISORY...WHICH IS IN EFFECT FROM 7 PM THIS EVENING
TO 4 AM PST SUNDAY. 

ALTHOUGH SNOW HAS TAPERED OFF TODAY...ANOTHER POTENT
WEATHER SYSTEM IS EXPECTED TO MOVE IN THIS EVENING. THIS SYSTEM
WILL BRING MORE SNOW AND WIND TO THE REGION. 2 TO 6 INCHES OF
ADDITIONAL SNOWFALL...ALONG WITH WINDS 15 TO 20 MPH MAY PRODUCE
LOCAL WHITE OUT CONDITIONS.

A SNOW AND BLOWING SNOW ADVISORY MEANS THAT VISIBILITIES WILL BE
LIMITED DUE TO A COMBINATION OF FALLING AND BLOWING SNOW. USE
CAUTION WHEN TRAVELING...ESPECIALLY IN OPEN AREAS.

$$

MTZ003-005-300430-
/O.NEW.KMSO.SN.Y.0049.071230T0300Z-071231T0000Z/
FLATHEAD/MISSION VALLEYS-MISSOULA/BITTERROOT VALLEYS-
338 PM MST SAT DEC 29 2007

...SNOW ADVISORY IN EFFECT FROM 8 PM THIS EVENING TO 5 PM MST
SUNDAY...

THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A SNOW
ADVISORY...WHICH IS IN EFFECT FROM 8 PM THIS EVENING TO 5 PM MST
SUNDAY. 

ALTHOUGH SNOW HAS TAPERED OFF TODAY...ANOTHER POTENT
WEATHER SYSTEM IS EXPECTED TO MOVE IN THIS EVENING. THIS SYSTEM
WILL BRING MORE SNOW AND WINTER WEATHER. 2 TO 5 INCHES OF
ADDITIONAL SNOWFALL ARE EXPECTED THROUGH SUNDAY AFTERNOON. GUSTY
WINDS ARE ALSO EXPECTED TO PICK UP EARLY SUNDAY AFTERNOON. THIS
ALONG WITH THE SNOWFALL COULD PRODUCE AREAS OF LIMITED VISIBILITY
AND MAKE TRAVEL DANGEROUS.

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

$$

000 
WWUS45 KMSO 300353
WSWMSO

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE MISSOULA MT
853 PM MST SAT DEC 29 2007

.A STRONG AND MOIST NORTHWESTERLY FLOW PATTERN WILL CONTINUE TO
PUSH WINTER WEATHER ACROSS THE AREA THROUGH SUNDAY AFTERNOON.
HEAVY SNOWFALL AMOUNTS ARE EXPECTED IN THE MOUNTAINS...WITH
LESSER AMOUNTS EXPECTED IN THE VALLEYS. WINDS WILL INTENSIFY ON
SUNDAY ACROSS SOME OF THE HIGHER TERRAIN CREATING BLOWING AND
DRIFTING SNOWFALL IN ADDITION TO THE FALLING SNOW.

MTZ005-300500-
/O.CAN.KMSO.SN.Y.0049.000000T0000Z-071231T0000Z/
MISSOULA/BITTERROOT VALLEYS-
853 PM MST SAT DEC 29 2007

...SNOW ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN MISSOULA HAS CANCELLED THE SNOW
ADVISORY. 

$$

MTZ001-301200-
/O.EXT.KMSO.HS.W.0024.000000T0000Z-071230T2200Z/
KOOTENAI/CABINET REGION-
853 PM MST SAT DEC 29 2007

...HEAVY SNOW WARNING NOW IN EFFECT UNTIL 3 PM MST SUNDAY...

THE HEAVY SNOW WARNING IS NOW IN EFFECT UNTIL 3 PM MST SUNDAY. 

STEADY SNOW IS EXPECTED TO REDEVELOP THIS EVENING BECOMING HEAVY
AT TIMES AFTER MIDNIGHT AND INTO SUNDAY. NEW SNOW ACCUMULATIONS
OF 6 TO 12 INCHES ARE EXPECTED BY LATE SUNDAY AFTERNOON.

A HEAVY SNOW WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE
EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST
THAT WILL MAKE TRAVEL DANGEROUS.

$$

MTZ002-043-301200-
/O.EXT.KMSO.WS.W.0011.000000T0000Z-071231T0000Z/
WEST GLACIER REGION-POTOMAC/SEELEY LAKE REGION-
853 PM MST SAT DEC 29 2007

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

THE WINTER STORM WARNING IS NOW IN EFFECT FROM 11 PM THIS EVENING
TO 5 PM MST SUNDAY. 

STEADY SNOW IS EXPECTED TO REDEVELOP THIS EVENING BECOMING HEAVY
AT TIMES AFTER MIDNIGHT AND INTO SUNDAY. NEW SNOW ACCUMULATIONS
OF 5 TO 12 INCHES ARE EXPECTED BY LATE SUNDAY AFTERNOON. 

IN ADDITION TO SNOW...WEST WINDS 15 TO 25 MPH WILL CREATE AREAS OF
BLOWING AND DRIFTING SNOW LATE TONIGHT THROUGH SUNDAY AFTERNOON.
WEST FACING MOUNTAIN SLOPES AND PEAKS WILL BE THE MOST IMPACTED BY
THIS EVENT...INCLUDING MARIAS PASS.

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW AND
STRONG WINDS ARE EXPECTED. THIS WILL MAKE TRAVEL VERY HAZARDOUS.

$$

IDZ005-006-MTZ004-006-301200-
/O.CON.KMSO.WS.W.0011.000000T0000Z-071231T0000Z/
NORTHERN CLEARWATER MOUNTAINS-SOUTHERN CLEARWATER MOUNTAINS-
LOWER CLARK FORK REGION-BITTERROOT/SAPPHIRE MOUNTAINS-
853 PM MST SAT DEC 29 2007 /753 PM PST SAT DEC 29 2007/

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST /4 PM
PST/ SUNDAY...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST /4 PM
PST/ SUNDAY. 

STEADY SNOW IS EXPECTED TO REDEVELOP THIS EVENING BECOMING HEAVY
AT TIMES AFTER MIDNIGHT AND INTO SUNDAY. NEW SNOW ACCUMULATIONS
OF 7 TO 17 INCHES ARE EXPECTED BY LATE SUNDAY AFTERNOON.

IN ADDITION TO SNOW...WEST WINDS 15 TO 25 MPH WILL CREATE AREAS OF
BLOWING AND DRIFTING SNOW LATE TONIGHT THROUGH SUNDAY AFTERNOON.
WEST FACING MOUNTAIN SLOPES AND PEAKS WILL BE THE MOST IMPACTED BY
THIS EVENT...INCLUDING LOLO AND LOST TRAIL PASSES.

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW AND
STRONG WINDS ARE EXPECTED. THIS WILL MAKE TRAVEL VERY HAZARDOUS.

$$

IDZ010-301200-
/O.EXB.KMSO.SB.Y.0013.071230T0600Z-071231T0000Z/
EASTERN LEMHI COUNTY-
853 PM MST SAT DEC 29 2007

...SNOW AND BLOWING SNOW ADVISORY IN EFFECT FROM 11 PM THIS
EVENING TO 5 PM MST SUNDAY ABOVE 5000 FEET OVER LOST TRAIL
PASS...

THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A SNOW AND
BLOWING SNOW ADVISORY ABOVE 5000 FEET...WHICH IS IN EFFECT FROM
11 PM THIS EVENING TO 5 PM MST SUNDAY. 

SNOW IS EXPECTED TO DEVELOP LATE TONIGHT AND CONTINUE INTO SUNDAY.
NEW SNOW ACCUMULATIONS OF 4 TO 6 INCHES ARE EXPECTED BY LATE
SUNDAY AFTERNOON OVER LOST TRAIL PASS. IN ADDITION TO SNOW...
NORTHWEST WINDS 15 TO 25 MPH WILL CREATE AREAS OF BLOWING AND
DRIFTING SNOW SUNDAY. 

A SNOW AND BLOWING SNOW ADVISORY MEANS THAT VISIBILITIES WILL BE
LIMITED DUE TO A COMBINATION OF FALLING AND BLOWING SNOW. USE
CAUTION WHEN TRAVELING...ESPECIALLY IN OPEN AREAS.

$$

MTZ003-301200-
/O.EXT.KMSO.SN.Y.0049.000000T0000Z-071230T2200Z/
FLATHEAD/MISSION VALLEYS-
853 PM MST SAT DEC 29 2007

...SNOW ADVISORY NOW IN EFFECT FROM 11 PM THIS EVENING TO 3 PM
MST SUNDAY...

THE SNOW ADVISORY IS NOW IN EFFECT FROM 11 PM THIS EVENING TO
3 PM MST SUNDAY. 

SNOW IS EXPECTED TO REDEVELOP LATE TONIGHT AND CONTINUE INTO
SUNDAY. NEW SNOW ACCUMULATIONS OF 2 TO 5 INCHES CAN BE EXPECTED
BY SUNDAY AFTERNOON. LOCATIONS NORTH OF FLATHEAD LAKE ARE EXPECTED
TO BE MOST IMPACTED BY THIS SYSTEM.

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

$$

IDZ007-008-301200-
/O.CON.KMSO.SB.Y.0013.000000T0000Z-071230T1200Z/
OROFINO/GRANGEVILLE REGION-LOWER HELLS CANYON/SALMON RIVER REGION-
753 PM PST SAT DEC 29 2007

...SNOW AND BLOWING SNOW ADVISORY REMAINS IN EFFECT UNTIL 4 AM
PST SUNDAY...

A SNOW AND BLOWING SNOW ADVISORY REMAINS IN EFFECT UNTIL 4 AM PST
SUNDAY. 

NEW SNOW ACCUMULATIONS OF 2 TO 5 INCHES ARE EXPECTED BY SUNRISE
SUNDAY MORNING. IN ADDITION TO SNOW...SOUTHWEST WINDS 15 TO 25 MPH
WILL CREATING BLOWING AND DRIFTING OF SNOW. AREAS MOST IMPACTED
WILL BE THE WHITE BIRD GRADE TO GRANGEVILLE.

A SNOW AND BLOWING SNOW ADVISORY MEANS THAT VISIBILITIES WILL BE
LIMITED DUE TO A COMBINATION OF FALLING AND BLOWING SNOW. USE
CAUTION WHEN TRAVELING...ESPECIALLY IN OPEN AREAS.

$$

000 
WWUS45 KMSO 300915
WSWMSO

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE MISSOULA MT
215 AM MST SUN DEC 30 2007

.A STRONG AND MOIST NORTHWESTERLY FLOW PATTERN WILL CONTINUE TO
PUSH WINTER WEATHER ACROSS THE AREA THROUGH THIS AFTERNOON.
HEAVY SNOWFALL AMOUNTS ARE EXPECTED IN THE MOUNTAINS...WITH
LESSER AMOUNTS EXPECTED IN THE VALLEYS. WINDS WILL INTENSIFY TODAY
ACROSS SOME OF THE HIGHER TERRAIN CREATING BLOWING AND DRIFTING
SNOWFALL IN ADDITION TO THE FALLING SNOW.

IDZ007-008-301015-
/O.CAN.KMSO.SB.Y.0013.000000T0000Z-071230T1200Z/
OROFINO/GRANGEVILLE REGION-LOWER HELLS CANYON/SALMON RIVER REGION-
115 AM PST SUN DEC 30 2007

...SNOW AND BLOWING SNOW ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN MISSOULA HAS CANCELLED THE SNOW
AND BLOWING SNOW ADVISORY. 

$$

MTZ001-301800-
/O.CON.KMSO.HS.W.0024.000000T0000Z-071230T2200Z/
KOOTENAI/CABINET REGION-
215 AM MST SUN DEC 30 2007

...HEAVY SNOW WARNING REMAINS IN EFFECT UNTIL 3 PM MST THIS
AFTERNOON...

A HEAVY SNOW WARNING REMAINS IN EFFECT UNTIL 3 PM MST THIS
AFTERNOON. 

EVENT TOTAL SNOWFALL ACCUMULATIONS OF 6 TO 12 INCHES ARE
EXPECTED ACROSS THE AREA BY THIS AFTERNOON. LIBBY AND TROY WILL
CONTINUE TO BE AMONG THE AREAS MOST IMPACTED BY THIS EVENT.

A HEAVY SNOW WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE
EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST
THAT WILL MAKE TRAVEL DANGEROUS.

$$

IDZ005-006-MTZ004-006-301800-
/O.CON.KMSO.WS.W.0011.000000T0000Z-071231T0000Z/
NORTHERN CLEARWATER MOUNTAINS-SOUTHERN CLEARWATER MOUNTAINS-
LOWER CLARK FORK REGION-BITTERROOT/SAPPHIRE MOUNTAINS-
215 AM MST SUN DEC 30 2007 /115 AM PST SUN DEC 30 2007/

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST /4 PM
PST/ THIS AFTERNOON...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST /4 PM
PST/ THIS AFTERNOON. 

EVENT TOTAL SNOWFALL ACCUMULATIONS OF 7 TO 17 INCHES ARE EXPECTED BY
LATE THIS AFTERNOON. IN ADDITION TO SNOW...WEST WINDS 15 TO 25
MPH WILL CREATE AREAS OF BLOWING AND DRIFTING SNOW THROUGH THIS
AFTERNOON. WEST FACING MOUNTAIN SLOPES AND PEAKS WILL BE THE MOST
IMPACTED BY THIS EVENT...INCLUDING LOLO AND LOST TRAIL PASSES.

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW AND
STRONG WINDS ARE EXPECTED. THIS WILL MAKE TRAVEL VERY HAZARDOUS.

$$

MTZ002-043-301800-
/O.CON.KMSO.WS.W.0011.000000T0000Z-071231T0000Z/
WEST GLACIER REGION-POTOMAC/SEELEY LAKE REGION-
215 AM MST SUN DEC 30 2007

...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. 

EVENT TOTAL SNOWFALL ACCUMULATIONS OF 5 TO 12 INCHES ARE EXPECTED
BY LATE THIS AFTERNOON. IN ADDITION TO SNOW...WEST WINDS 15 TO
25 MPH WILL CREATE AREAS OF BLOWING AND DRIFTING SNOW LATE TONIGHT
THROUGH SUNDAY AFTERNOON. WEST FACING MOUNTAIN SLOPES AND PEAKS
WILL BE THE MOST IMPACTED BY THIS EVENT...INCLUDING MARIAS PASS.

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW AND
STRONG WINDS ARE EXPECTED. THIS WILL MAKE TRAVEL VERY HAZARDOUS.

$$

IDZ010-301800-
/O.CON.KMSO.SB.Y.0013.000000T0000Z-071231T0000Z/
EASTERN LEMHI COUNTY-
215 AM MST SUN DEC 30 2007

...SNOW AND BLOWING SNOW ADVISORY REMAINS IN EFFECT UNTIL 5 PM
MST THIS AFTERNOON ABOVE 5000 FEET...

A SNOW AND BLOWING SNOW ADVISORY ABOVE 5000 FEET REMAINS IN
EFFECT UNTIL 5 PM MST THIS AFTERNOON. 

EVENT TOTAL SNOWFALL ACCUMULATIONS OF 4 TO 6 INCHES ARE EXPECTED BY
LATE THIS AFTERNOON OVER LOST TRAIL PASS. IN ADDITION TO SNOW...
NORTHWEST WINDS 15 TO 25 MPH WILL CREATE AREAS OF BLOWING AND
DRIFTING SNOW SUNDAY.

A SNOW AND BLOWING SNOW ADVISORY MEANS THAT VISIBILITIES WILL BE
LIMITED DUE TO A COMBINATION OF FALLING AND BLOWING SNOW. USE
CAUTION WHEN TRAVELING...ESPECIALLY IN OPEN AREAS.

$$

MTZ003-301800-
/O.CON.KMSO.SN.Y.0049.000000T0000Z-071230T2200Z/
FLATHEAD/MISSION VALLEYS-
215 AM MST SUN DEC 30 2007

...SNOW ADVISORY REMAINS IN EFFECT UNTIL 3 PM MST THIS
AFTERNOON...

A SNOW ADVISORY REMAINS IN EFFECT UNTIL 3 PM MST THIS AFTERNOON. 

EVENT TOTAL SNOWFALL ACCUMULATIONS OF 2 TO 5 INCHES ARE EXPECTED BY THIS
AFTERNOON. LOCATIONS NORTH OF FLATHEAD LAKE ARE EXPECTED TO BE
MOST IMPACTED BY THIS SYSTEM.

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

$$

000 
WWUS45 KMSO 301732
WSWMSO

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE MISSOULA MT
1032 AM MST SUN DEC 30 2007

.A STRONG AND MOIST NORTHWESTERLY FLOW PATTERN WILL CONTINUE TO
PUSH WINTER WEATHER ACROSS THE AREA THROUGH THIS AFTERNOON. HEAVY
SNOWFALL AMOUNTS ARE EXPECTED IN THE MOUNTAINS...WITH LESSER
AMOUNTS EXPECTED IN THE VALLEYS. WINDS WILL INTENSIFY TODAY
ACROSS SOME OF THE HIGHER TERRAIN CREATING BLOWING AND DRIFTING
SNOWFALL IN ADDITION TO THE FALLING SNOW.

MTZ001-302200-
/O.CON.KMSO.HS.W.0024.000000T0000Z-071230T2200Z/
KOOTENAI/CABINET REGION-
1032 AM MST SUN DEC 30 2007

...HEAVY SNOW WARNING REMAINS IN EFFECT UNTIL 3 PM MST THIS
AFTERNOON...

A HEAVY SNOW WARNING REMAINS IN EFFECT UNTIL 3 PM MST THIS
AFTERNOON. 

EVENT TOTAL SNOWFALL ACCUMULATIONS OF 6 TO 12 INCHES ARE EXPECTED
ACROSS THE AREA BY THIS AFTERNOON. LIBBY AND TROY WILL CONTINUE
TO BE AMONG THE AREAS MOST IMPACTED BY THIS EVENT.

A HEAVY SNOW WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE
EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST
THAT WILL MAKE TRAVEL DANGEROUS.

$$

IDZ005-006-MTZ004-006-302200-
/O.CON.KMSO.WS.W.0011.000000T0000Z-071231T0000Z/
NORTHERN CLEARWATER MOUNTAINS-SOUTHERN CLEARWATER MOUNTAINS-
LOWER CLARK FORK REGION-BITTERROOT/SAPPHIRE MOUNTAINS-
1032 AM MST SUN DEC 30 2007 /932 AM PST SUN DEC 30 2007/

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST /4 PM
PST/ THIS AFTERNOON...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST /4 PM
PST/ THIS AFTERNOON. 

EVENT TOTAL SNOWFALL ACCUMULATIONS OF 7 TO 17 INCHES ARE EXPECTED
BY LATE THIS AFTERNOON. IN ADDITION TO SNOW...WEST WINDS 15 TO
25 MPH WILL CREATE AREAS OF BLOWING AND DRIFTING SNOW THROUGH
THIS AFTERNOON. WEST FACING MOUNTAIN SLOPES AND PEAKS WILL BE THE
MOST IMPACTED BY THIS EVENT...INCLUDING LOLO AND LOST TRAIL
PASSES.

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW AND
STRONG WINDS ARE EXPECTED. THIS WILL MAKE TRAVEL VERY HAZARDOUS.

$$

MTZ002-043-302200-
/O.CON.KMSO.WS.W.0011.000000T0000Z-071231T0000Z/
WEST GLACIER REGION-POTOMAC/SEELEY LAKE REGION-
1032 AM MST SUN DEC 30 2007

...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. 

EVENT TOTAL SNOWFALL ACCUMULATIONS OF 5 TO 12 INCHES ARE EXPECTED
BY LATE THIS AFTERNOON. IN ADDITION TO SNOW...WEST WINDS 15 TO
25 MPH WILL CREATE AREAS OF BLOWING AND DRIFTING SNOW LATE
TONIGHT THROUGH SUNDAY AFTERNOON. WEST FACING MOUNTAIN SLOPES AND
PEAKS WILL BE THE MOST IMPACTED BY THIS EVENT...INCLUDING MARIAS
PASS.

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW AND
STRONG WINDS ARE EXPECTED. THIS WILL MAKE TRAVEL VERY HAZARDOUS.

$$

IDZ010-302200-
/O.CON.KMSO.SB.Y.0013.000000T0000Z-071231T0000Z/
EASTERN LEMHI COUNTY-
1032 AM MST SUN DEC 30 2007

...SNOW AND BLOWING SNOW ADVISORY REMAINS IN EFFECT UNTIL 5 PM
MST THIS AFTERNOON ABOVE 5000 FEET...

A SNOW AND BLOWING SNOW ADVISORY ABOVE 5000 FEET REMAINS IN
EFFECT UNTIL 5 PM MST THIS AFTERNOON. 

EVENT TOTAL SNOWFALL ACCUMULATIONS OF 4 TO 6 INCHES ARE EXPECTED
BY LATE THIS AFTERNOON OVER LOST TRAIL PASS. IN ADDITION TO
SNOW... NORTHWEST WINDS 15 TO 25 MPH WILL CREATE AREAS OF BLOWING
AND DRIFTING SNOW SUNDAY.

A SNOW AND BLOWING SNOW ADVISORY MEANS THAT VISIBILITIES WILL BE
LIMITED DUE TO A COMBINATION OF FALLING AND BLOWING SNOW. USE
CAUTION WHEN TRAVELING...ESPECIALLY IN OPEN AREAS.

$$

MTZ003-302200-
/O.CON.KMSO.SN.Y.0049.000000T0000Z-071230T2200Z/
FLATHEAD/MISSION VALLEYS-
1032 AM MST SUN DEC 30 2007

...SNOW ADVISORY REMAINS IN EFFECT UNTIL 3 PM MST THIS
AFTERNOON...

A SNOW ADVISORY REMAINS IN EFFECT UNTIL 3 PM MST THIS AFTERNOON. 

EVENT TOTAL SNOWFALL ACCUMULATIONS OF 2 TO 5 INCHES ARE EXPECTED
BY THIS AFTERNOON. LOCATIONS NORTH OF FLATHEAD LAKE ARE EXPECTED
TO BE MOST IMPACTED BY THIS SYSTEM.

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

$$

000 
WWUS45 KMSO 302147
WSWMSO

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE MISSOULA MT
247 PM MST SUN DEC 30 2007

.A STRONG AND MOIST NORTHWESTERLY FLOW PATTERN WILL CONTINUE TO
PUSH WINTER WEATHER ACROSS THE AREA THROUGH SUNDAY NIGHT. MODERATE
SNOWFALL AMOUNTS ARE EXPECTED IN THE MOUNTAINS...WITH LESSER
AMOUNTS EXPECTED IN THE VALLEYS. WINDS WILL CONTINUE TONIGHT ACROSS
SOME OF THE HIGHER TERRAIN CREATING BLOWING AND DRIFTING SNOW IN
ADDITION TO THE FALLING SNOW.

IDZ005-006-MTZ002-004-006-043-311200-
/O.CAN.KMSO.WS.W.0011.000000T0000Z-071231T0000Z/
/O.EXB.KMSO.SB.Y.0013.071230T2200Z-071231T1200Z/
NORTHERN CLEARWATER MOUNTAINS-SOUTHERN CLEARWATER MOUNTAINS-
WEST GLACIER REGION-LOWER CLARK FORK REGION-
BITTERROOT/SAPPHIRE MOUNTAINS-POTOMAC/SEELEY LAKE REGION-
247 PM MST SUN DEC 30 2007 /147 PM PST SUN DEC 30 2007/

...SNOW AND BLOWING SNOW ADVISORY IN EFFECT UNTIL 5 AM MST /4 AM
PST/ MONDAY...
...WINTER STORM WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A SNOW AND
BLOWING SNOW ADVISORY...WHICH IS IN EFFECT UNTIL 5 AM MST /4 AM
PST/ MONDAY. THE WINTER STORM WARNING HAS BEEN CANCELLED. 

AN ADDITIONAL 1 TO 4 INCHES OF SNOWFALL IS EXPECTED TONIGHT BEFORE
THIS SYSTEM EXITS OUT OF THE REGION. THIS ALONG WITH GUSTY WINDS
IS EXPECTED TO BRING HAZARDOUS TRAVEL CONDITIONS.

A SNOW AND BLOWING SNOW ADVISORY MEANS THAT VISIBILITIES WILL BE
LIMITED DUE TO A COMBINATION OF FALLING AND BLOWING SNOW. USE
CAUTION WHEN TRAVELING...ESPECIALLY IN OPEN AREAS.

$$

MTZ001-302300-
/O.EXP.KMSO.HS.W.0024.000000T0000Z-071230T2200Z/
KOOTENAI/CABINET REGION-
247 PM MST SUN DEC 30 2007

...HEAVY SNOW WARNING WILL EXPIRE AT 3 PM MST THIS AFTERNOON...

THE HEAVY SNOW WARNING WILL EXPIRE AT 3 PM MST THIS AFTERNOON. 

SOME SNOWFALL MAY ACCUMULATE THROUGH SUNDAY NIGHT...BUT TOTALS
ARE EXPECTED TO BE LIGHT.

$$

MTZ003-302300-
/O.EXP.KMSO.SN.Y.0049.000000T0000Z-071230T2200Z/
FLATHEAD/MISSION VALLEYS-
247 PM MST SUN DEC 30 2007

...SNOW ADVISORY WILL EXPIRE AT 3 PM MST THIS AFTERNOON...

SOME SNOWFALL MAY ACCUMULATE THROUGH SUNDAY NIGHT...BUT TOTALS
ARE EXPECTED TO BE LIGHT.

$$

IDZ010-311200-
/O.EXT.KMSO.SB.Y.0013.000000T0000Z-071231T1200Z/
EASTERN LEMHI COUNTY-
247 PM MST SUN DEC 30 2007

...SNOW AND BLOWING SNOW ADVISORY NOW IN EFFECT UNTIL 5 AM MST
MONDAY ABOVE 5000 FEET...

THE SNOW AND BLOWING SNOW ADVISORY ABOVE 5000 FEET IS NOW IN
EFFECT UNTIL 5 AM MST MONDAY. 

AN ADDITIONAL 2-3 INCHES OF SNOW IS EXPECTED OVER LOST TRAIL PASS. IN
ADDITION TO SNOW...NORTHWEST WINDS 15 TO 25 MPH WILL CREATE AREAS
OF BLOWING AND DRIFTING SNOW SUNDAY NIGHT.

A SNOW AND BLOWING SNOW ADVISORY MEANS THAT VISIBILITIES WILL BE
LIMITED DUE TO A COMBINATION OF FALLING AND BLOWING SNOW. USE
CAUTION WHEN TRAVELING...ESPECIALLY IN OPEN AREAS.

$$

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MISSOULA MT
215 PM MST SAT DEC 29 2007

.DISCUSSION...SATELLITE AND RADAR IMAGERY SHOW WEAK SHOWERS HAVE
DEVELOPED AND CLOUDS HAVE FILLED IN SOMEWHAT BEHIND TODAYS WARM
FRONT. DRYING AND STABILIZATION BEHIND THE WARM FRONT HELPED SNOW
TAPER OFF THROUGH THE DAY TODAY. A COLD FRONTAL SYSTEM IS EXPECTED TO
MOVE INTO THE NORTHERN ROCKIES THIS EVENING...BRINGING ADDITIONAL
SNOW AND EVENTUALLY WINDY CONDITIONS. SNOW AND WIND ARE EXPECTED
TO CONTINUE THROUGH MUCH OF CENTRAL IDAHO AND WESTERN MONTANA INTO
SUNDAY. MODERATE SNOWFALL AMOUNTS WILL BE POSSIBLE AND A VARIETY
OF WINTER WEATHER HIGHLIGHTS HAVE BEEN ISSUED. PLEASE SEE
GTFWSWMSO FOR MORE DETAILS. SNOW AND WIND ARE EXPECTED TO DECREASE
THROUGH SUNDAY NIGHT AS THE COLD FRONT MOVES SOUTHEAST OUT OF THE
REGION.

MONDAY WILL BE THE DAY THAT A RIDGE OF HIGH PRESSURE BEGINS TO
DEVELOP OVER THE PACIFIC NORTHWEST WITH THE NORTHERN ROCKIES
REGION STILL UNDER BRISK AND UNSTABLE NORTHWEST FLOW FOR SNOW SHOWERS
EARLY...BUT BY NEW YEARS EVE...CLEARING SKIES SHOULD TAKE OVER.
STABLE HIGH PRESSURE WILL MEAN VALLEY INVERSIONS WITH COLD
TEMPERATURES ON NEW YEARS DAY INTO TUESDAY NIGHT WITH PATCHY FOG
FORMING. FOR THE REMAINDER OF THE WEEK...THE RIDGE OF HIGH PRESSURE
IS EXPECTED TO SHIFT EAST INTO THE PLAINS STATES WITH MILDER
SOUTHWESTERLY FLOW DEVELOPING OVER THE WEST WITH CHANCES OF
PRECIPITATION INCREASING BY THE END OF THE WEEK.

&&

.AVIATION...WEAK SNOW SHOWERS ARE EXPECTED TO CONTINUE INTO THE
EARLY EVENING. THIS WILL BE SHORT LIVED AS THE ARRIVAL OF A COLD
FRONTAL SYSTEM THIS EVENING WILL ONCE AGAIN REDUCE CEILINGS AND
VISIBILITIES AS WELL AS OBSCURE MOUNTAINS AND PASSES. STRONG POST-
FRONTAL WESTERLY WINDS WILL AFFECT AIR TRAVEL THIS WEEKEND BEFORE
DECREASING OVERNIGHT SUNDAY.

&&

.MSO WATCHES/WARNINGS/ADVISORIES...
MT...WINTER STORM WARNING UNTIL 5 PM MST SUNDAY FOR
     BITTERROOT/SAPPHIRE MOUNTAINS-LOWER CLARK FORK REGION.

     SNOW ADVISORY FROM 8 PM THIS EVENING TO 5 PM MST SUNDAY FOR
     FLATHEAD/MISSION VALLEYS-MISSOULA/BITTERROOT VALLEYS.

     WINTER STORM WARNING UNTIL 5 PM MST SUNDAY FOR POTOMAC/SEELEY
     LAKE REGION-WEST GLACIER REGION.

     HEAVY SNOW WARNING UNTIL 5 PM MST SUNDAY FOR KOOTENAI/CABINET
     REGION.

ID...SNOW AND BLOWING SNOW ADVISORY FROM 7 PM THIS EVENING TO 4 AM
     PST SUNDAY FOR LOWER HELLS CANYON/SALMON RIVER REGION-
     OROFINO/GRANGEVILLE REGION.

     WINTER STORM WARNING UNTIL 4 PM PST SUNDAY FOR NORTHERN
     CLEARWATER MOUNTAINS-SOUTHERN CLEARWATER MOUNTAINS.

&&

SHORT TERM...STEGEMILLER
LONG TERM....SIGLER
AVIATION...DEROSA

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE MISSOULA MT
317 PM MST SAT DEC 29 2007

MTZ007-300400-
BUTTE/BLACKFOOT REGION-
317 PM MST SAT DEC 29 2007

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

.DAY ONE...THIS AFTERNOON AND TONIGHT

LIGHT SNOW IS EXPECTED TO DEVELOP AFTER MIDNIGHT WITH LOCAL
ACCUMULATIONS OF 2 INCHES.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

GUSTY WEST TO NORTHWEST WINDS 15 TO 25 MPH AND OCCASIONAL MODERATE
SNOW ARE EXPECTED SUNDAY. MOTORISTS ALONG THE I-90 CORRIDOR TO
HOMESTAKE PASS AND HIGHWAY 12 APPROACHING MCDONALD PASS MAY
EXPERIENCE DIFFICULT DRIVING CONDITIONS. COLD TEMPERATURES AND
DRIER WEATHER IS FORECAST FOR LATE MONDAY AND TUESDAY.

.SPOTTER INFORMATION STATEMENT...

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

IDZ009-010-300400-
WESTERN LEMHI COUNTY-EASTERN LEMHI COUNTY-
317 PM MST SAT DEC 29 2007

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

.DAY ONE...THIS AFTERNOON AND TONIGHT

LIGHT TO MODERATE SNOW IS EXPECTED TO DEVELOP AFTER MIDNIGHT WITH LOCAL
ACCUMULATIONS OF 2 TO 4 INCHES.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

GUSTY WEST TO NORTHWEST WINDS 15 TO 30 MPH AND OCCASIONAL MODERATE
SNOW ARE EXPECTED SUNDAY. MOTORISTS ALONG HIGHWAY 93 NEAR LOST
TRAIL AND GIBBONS PASS AND HIGHWAY 28 APPROACHING LEADORE MAY
EXPERIENCE DIFFICULT DRIVING CONDITIONS. COLD TEMPERATURES AND
DRIER WEATHER IS FORECAST FOR LATE MONDAY AND TUESDAY.

.SPOTTER INFORMATION STATEMENT...

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