Alert archive / Montana / Winter Storm Warnings in 2007

Winter Storm Warning 11, NWS Missoula, MT

December 29, 2007Clearwater County, Idaho County, Idaho; 8 counties in Montana

NWS Missoula, MT issued this winter storm warning at Dec 29, 2007, 1:27 AM PST for Clearwater County, Idaho County, Idaho; 8 counties in Montana. It took effect at Dec 29, 2007, 4:00 AM PST. It was in force for 34 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Dec 29, 2007, 1:27 AM PST (09:27 UTC)
In effect from
Dec 29, 2007, 4:00 AM PST
Expired
Dec 30, 2007, 1:47 PM PST
In force
34 hr
Issued by
NWS Missoula, MT

Counties Clearwater County, ID, Idaho County, ID, Flathead County, MT, Granite County, MT, Lake County, MT, Mineral County, MT, Missoula County, MT, Powell County, MT, Ravalli County, MT, Sanders County, MT

The radar

The Missoula radar (KMSX), 31 km from the middle of the area, began a volume at 09:30 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Spokane, WA (KOTX), launched 00:00Z, 9.5 hours before the alert went out and 173 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Spokane, WA at 00:00Z on 2007-12-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Spokane, WA at 00:00Z on 2007-12-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 109 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
597 m above ground
0-6 km bulk shear
44 kt
0-1 km storm-relative helicity
109 m²/s²
0-3 km storm-relative helicity
99 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WWUS45 KMSO 290927
WSWMSO

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE MISSOULA MT
227 AM MST SAT DEC 29 2007

...SEVERAL WINTER STORMS EXPECTED TO IMPACT THE REGION...

.A STRONG AND MOIST NORTHWESTERLY FLOW PATTERN WILL PUSH A SERIES
OF WINTER STORMS 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. THERE IS A CHANCE THAT
THIS EVENT COULD CONTINUE INTO MONDAY AS THE ENERGETIC
NORTHWESTERLY FLOW REMAINS OVERHEAD.

MTZ006-291030-
/O.CAN.KMSO.SN.Y.0047.000000T0000Z-071229T1200Z/
/O.UPG.KMSO.WS.A.0022.071229T1300Z-071231T0000Z/
/O.NEW.KMSO.WS.W.0011.071229T1200Z-071231T0000Z/
BITTERROOT/SAPPHIRE MOUNTAINS-
227 AM MST SAT DEC 29 2007

...WINTER STORM WARNING IN EFFECT FROM 5 AM EARLY THIS MORNING TO
5 PM MST SUNDAY...
...SNOW ADVISORY IS CANCELLED...
...WINTER STORM WATCH NO LONGER IN EFFECT...

THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WINTER
STORM WARNING...WHICH IS IN EFFECT FROM 5 AM EARLY THIS MORNING
TO 5 PM MST SUNDAY. THE SNOW ADVISORY HAS BEEN CANCELED. THE
WINTER STORM WATCH IS NO LONGER IN EFFECT. 

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 OR
IMPOSSIBLE.

$$

MTZ004-291030-
/O.CAN.KMSO.SN.Y.0047.000000T0000Z-071229T1200Z/
/O.UPG.KMSO.WS.A.0022.071229T1300Z-071231T0000Z/
/O.NEW.KMSO.WS.W.0011.071229T1200Z-071231T0000Z/
LOWER CLARK FORK REGION-
227 AM MST SAT DEC 29 2007

...WINTER STORM WARNING IN EFFECT FROM 5 AM EARLY THIS MORNING TO
5 PM MST SUNDAY ABOVE 3000 FEET...
...SNOW ADVISORY IS CANCELLED...
...WINTER STORM WATCH NO LONGER IN EFFECT...

THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WINTER
STORM WARNING ABOVE 3000 FEET...WHICH IS IN EFFECT FROM 5 AM
EARLY THIS MORNING TO 5 PM MST SUNDAY. THE SNOW ADVISORY HAS BEEN
CANCELED. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. 

TOTAL SNOWFALL AMOUNTS OF 11 TO 16 INCHES WITH LOCAL AMOUNTS UP
TO 24 INCHES ARE EXPECTED BY LATE SUNDAY AFTERNOON ABOVE 3000 FEET.
IN ADDITION... BREEZY WEST TO NORTHWEST WINDS WILL CREATE AREAS OF
BLOWING AND DRIFTING SNOW LATE TONIGHT THROUGH THROUGH SUNDAY
AFTERNOON. WEST FACING MOUNTAIN SLOPES WILL BE THE MOST IMPACTED
BY THIS EVENT...INCLUDING LOOKOUT PASS.

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

$$

IDZ005-006-291030-
/O.NEW.KMSO.WS.W.0011.071229T1200Z-071231T0000Z/
/O.EXT.KMSO.HS.W.0024.000000T0000Z-071229T1200Z/
NORTHERN CLEARWATER MOUNTAINS-SOUTHERN CLEARWATER MOUNTAINS-
127 AM PST SAT DEC 29 2007

...HEAVY SNOW WARNING NOW IN EFFECT UNTIL 4 AM PST EARLY THIS
MORNING...
...WINTER STORM WARNING IN EFFECT FROM 4 AM EARLY THIS MORNING TO
4 PM PST SUNDAY...

THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WINTER
STORM WARNING...WHICH IS IN EFFECT FROM 4 AM EARLY THIS MORNING
TO 4 PM PST SUNDAY. THE HEAVY SNOW WARNING IS NOW IN EFFECT UNTIL
4 AM PST EARLY THIS MORNING. 

TOTAL SNOWFALL AMOUNTS OF 12 TO 18 INCHES WITH LOCAL AMOUNTS UP
TO 26 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 THROUGH SUNDAY AFTERNOON. WEST
FACING MOUNTAIN SLOPES WILL BE THE MOST IMPACTED BY THIS
EVENT...INCLUDING LOLO PASS.

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

$$

MTZ002-043-291030-
/O.UPG.KMSO.WS.A.0022.071229T1300Z-071231T0000Z/
/O.NEW.KMSO.WS.W.0011.071229T1200Z-071231T0000Z/
WEST GLACIER REGION-POTOMAC/SEELEY LAKE REGION-
227 AM MST SAT DEC 29 2007

...WINTER STORM WARNING IN EFFECT FROM 5 AM EARLY THIS MORNING TO
5 PM MST SUNDAY ABOVE 4000 FEET...
...WINTER STORM WATCH NO LONGER IN EFFECT...

THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WINTER
STORM WARNING ABOVE 4000 FEET...WHICH IS IN EFFECT FROM 5 AM
EARLY THIS MORNING TO 5 PM MST SUNDAY. THE WINTER STORM WATCH IS
NO LONGER IN EFFECT. 

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 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 OR
IMPOSSIBLE.

$$

IDZ010-291030-
/O.UPG.KMSO.WS.A.0022.071229T1300Z-071231T0000Z/
/O.EXB.KMSO.HS.W.0024.071229T1200Z-071231T0000Z/
EASTERN LEMHI COUNTY-
227 AM MST SAT DEC 29 2007

...HEAVY SNOW WARNING IN EFFECT FROM 5 AM EARLY THIS MORNING TO
5 PM MST SUNDAY ABOVE 6500 FEET...
...WINTER STORM WATCH NO LONGER IN EFFECT...

THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A HEAVY SNOW
WARNING ABOVE 6500 FEET...WHICH IS IN EFFECT FROM 5 AM EARLY THIS
MORNING TO 5 PM MST SUNDAY. THE WINTER STORM WATCH IS NO LONGER
IN EFFECT. 

TOTAL SNOWFALL AMOUNTS OF 6 TO 12 INCHES ARE EXPECTED BY LATE
SUNDAY AFTERNOON ABOVE 6500 FEET. WEST FACING MOUNTAIN SLOPES WILL
BE THE MOST IMPACTED BY THIS EVENT...INCLUDING LOST TRAIL PASS.

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

$$

MTZ007-291030-
/O.UPG.KMSO.WS.A.0022.071229T1800Z-071231T0000Z/
/O.EXB.KMSO.HS.W.0024.071229T1800Z-071231T0600Z/
BUTTE/BLACKFOOT REGION-
227 AM MST SAT DEC 29 2007

...HEAVY SNOW WARNING IN EFFECT FROM 11 AM THIS MORNING TO 11 PM
MST SUNDAY ABOVE 6000 FEET...
...WINTER STORM WATCH NO LONGER IN EFFECT...

THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A HEAVY SNOW
WARNING ABOVE 6000 FEET...WHICH IS IN EFFECT FROM 11 AM THIS
MORNING TO 11 PM MST SUNDAY. THE WINTER STORM WATCH IS NO LONGER
IN EFFECT. 

TOTAL SNOWFALL AMOUNTS OF 10 TO 13 INCHES ARE EXPECTED BY LATE
SUNDAY AFTERNOON ABOVE 6000 FEET. WEST FACING MOUNTAIN SLOPES WILL
BE THE MOST IMPACTED BY THIS EVENT...INCLUDING AREAS ABOVE BUTTE
ALONG THE CONTINENTAL DIVIDE AND US HIGHWAY 12 HEADING EAST TOWARD
MCDONALD PASS.

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

$$

MTZ001-291030-
/O.EXB.KMSO.HS.W.0024.071229T1200Z-071231T0000Z/
KOOTENAI/CABINET REGION-
227 AM MST SAT DEC 29 2007

...HEAVY SNOW WARNING IN EFFECT FROM 5 AM EARLY THIS MORNING TO
5 PM MST SUNDAY ABOVE 3000 FEET...

THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A HEAVY SNOW
WARNING ABOVE 3000 FEET...WHICH IS IN EFFECT FROM 5 AM EARLY THIS
MORNING TO 5 PM MST SUNDAY. 

TOTAL SNOWFALL AMOUNTS OF 8 TO 13 INCHES WITH LOCAL AMOUNTS UP TO
17 INCHES ARE EXPECTED BY LATE SUNDAY AFTERNOON ABOVE 3000 FEET.
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. 

$$

IDZ007-008-291030-
/O.NEW.KMSO.SB.Y.0012.071229T2100Z-071231T0000Z/
OROFINO/GRANGEVILLE REGION-LOWER HELLS CANYON/SALMON RIVER REGION-
127 AM PST SAT DEC 29 2007

...SNOW AND BLOWING SNOW ADVISORY IN EFFECT FROM 1 PM THIS
AFTERNOON TO 4 PM PST SUNDAY ABOVE 3000 FEET...

THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A SNOW AND
BLOWING SNOW ADVISORY ABOVE 3000 FEET...WHICH IS IN EFFECT FROM
1 PM THIS AFTERNOON TO 4 PM PST SUNDAY. 

TOTAL SNOWFALL AMOUNTS OF 5 TO 9 INCHES ARE EXPECTED ABOVE 3000 FEET
FROM EARLY THIS AFTERNOON THROUGH SUNDAY AFTERNOON. BREEZY WEST TO
NORTHWEST WINDS WILL CREATE LOCAL BLOWING AND DRIFTING
SNOW...ESPECIALLY OVER THE CAMAS PRAIRIE.

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.

$$
12 follow-up statements
000 
WWUS45 KMSO 290931
WSWMSO

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE MISSOULA MT
231 AM MST SAT DEC 29 2007

...SEVERAL WINTER STORMS EXPECTED TO IMPACT THE REGION...

.A STRONG AND MOIST NORTHWESTERLY FLOW PATTERN WILL PUSH A SERIES
OF WINTER STORMS 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. THERE IS A CHANCE THAT
THIS EVENT COULD CONTINUE INTO MONDAY AS THE ENERGETIC
NORTHWESTERLY FLOW REMAINS OVERHEAD.

IDZ005-006-291045-
/O.CAN.KMSO.HS.W.0024.000000T0000Z-071229T1200Z/
/O.CON.KMSO.WS.W.0011.071229T1200Z-071231T0000Z/
NORTHERN CLEARWATER MOUNTAINS-SOUTHERN CLEARWATER MOUNTAINS-
131 AM PST SAT DEC 29 2007

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 PM PST SUNDAY...
...HEAVY SNOW WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN MISSOULA HAS CANCELLED THE HEAVY
SNOW WARNING. A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 PM
PST SUNDAY. 

TOTAL SNOWFALL AMOUNTS OF 12 TO 18 INCHES WITH LOCAL AMOUNTS UP
TO 26 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 THROUGH SUNDAY AFTERNOON. WEST
FACING MOUNTAIN SLOPES WILL BE THE MOST IMPACTED BY THIS EVENT...
INCLUDING LOLO PASS.

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

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

$$

MTZ001-291045-
/O.CON.KMSO.HS.W.0024.071229T1200Z-071231T0000Z/
KOOTENAI/CABINET REGION-
231 AM MST SAT DEC 29 2007

...HEAVY SNOW WARNING REMAINS IN EFFECT UNTIL 5 PM MST SUNDAY
ABOVE 3000 FEET...

A HEAVY SNOW WARNING ABOVE 3000 FEET REMAINS IN EFFECT UNTIL 5 PM
MST SUNDAY. 

TOTAL SNOWFALL AMOUNTS OF 8 TO 13 INCHES WITH LOCAL AMOUNTS UP TO
17 INCHES ARE EXPECTED BY LATE SUNDAY AFTERNOON ABOVE 3000 FEET.
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.

$$

MTZ007-291045-
/O.CON.KMSO.HS.W.0024.071229T1800Z-071231T0600Z/
BUTTE/BLACKFOOT REGION-
231 AM MST SAT DEC 29 2007

...HEAVY SNOW WARNING REMAINS IN EFFECT FROM 11 AM THIS MORNING
TO 11 PM MST SUNDAY ABOVE 6000 FEET...

A HEAVY SNOW WARNING ABOVE 6000 FEET REMAINS IN EFFECT FROM 11 AM
THIS MORNING TO 11 PM MST SUNDAY. 

TOTAL SNOWFALL AMOUNTS OF 10 TO 13 INCHES ARE EXPECTED BY LATE
SUNDAY AFTERNOON ABOVE 6000 FEET. WEST FACING MOUNTAIN SLOPES
WILL BE THE MOST IMPACTED BY THIS EVENT...INCLUDING AREAS ABOVE
BUTTE ALONG THE CONTINENTAL DIVIDE AND US HIGHWAY 12 HEADING EAST
TOWARD MCDONALD PASS.

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

$$

IDZ010-291045-
/O.CON.KMSO.HS.W.0024.071229T1200Z-071231T0000Z/
EASTERN LEMHI COUNTY-
231 AM MST SAT DEC 29 2007

...HEAVY SNOW WARNING REMAINS IN EFFECT UNTIL 5 PM MST SUNDAY
ABOVE 6500 FEET...

A HEAVY SNOW WARNING ABOVE 6500 FEET REMAINS IN EFFECT UNTIL 5 PM
MST SUNDAY. 

TOTAL SNOWFALL AMOUNTS OF 6 TO 12 INCHES ARE EXPECTED BY LATE
SUNDAY AFTERNOON ABOVE 6500 FEET. WEST FACING MOUNTAIN SLOPES
WILL BE THE MOST IMPACTED BY THIS EVENT...INCLUDING LOST TRAIL
PASS.

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

$$

MTZ006-291045-
/O.CON.KMSO.WS.W.0011.071229T1200Z-071231T0000Z/
BITTERROOT/SAPPHIRE MOUNTAINS-
231 AM 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. 

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
OR IMPOSSIBLE.

$$

MTZ004-291045-
/O.CON.KMSO.WS.W.0011.071229T1200Z-071231T0000Z/
LOWER CLARK FORK REGION-
231 AM MST SAT DEC 29 2007

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST SUNDAY
ABOVE 3000 FEET...

A WINTER STORM WARNING ABOVE 3000 FEET REMAINS IN EFFECT UNTIL
5 PM MST SUNDAY. 

TOTAL SNOWFALL AMOUNTS OF 11 TO 16 INCHES WITH LOCAL AMOUNTS UP
TO 24 INCHES ARE EXPECTED BY LATE SUNDAY AFTERNOON ABOVE
3000 FEET. IN ADDITION... BREEZY WEST TO NORTHWEST WINDS WILL
CREATE AREAS OF BLOWING AND DRIFTING SNOW LATE TONIGHT THROUGH
THROUGH SUNDAY AFTERNOON. WEST FACING MOUNTAIN SLOPES WILL BE THE
MOST IMPACTED BY THIS EVENT...INCLUDING LOOKOUT PASS.

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

$$

MTZ002-043-291045-
/O.CON.KMSO.WS.W.0011.071229T1200Z-071231T0000Z/
WEST GLACIER REGION-POTOMAC/SEELEY LAKE REGION-
231 AM MST SAT DEC 29 2007

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST SUNDAY
ABOVE 4000 FEET...

A WINTER STORM WARNING ABOVE 4000 FEET REMAINS IN EFFECT UNTIL
5 PM MST SUNDAY. 

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 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
OR IMPOSSIBLE.

$$

IDZ007-008-291045-
/O.CON.KMSO.SB.Y.0012.071229T2100Z-071231T0000Z/
OROFINO/GRANGEVILLE REGION-LOWER HELLS CANYON/SALMON RIVER REGION-
131 AM PST SAT DEC 29 2007

...SNOW AND BLOWING SNOW ADVISORY REMAINS IN EFFECT FROM 1 PM
THIS AFTERNOON TO 4 PM PST SUNDAY ABOVE 3000 FEET...

A SNOW AND BLOWING SNOW ADVISORY ABOVE 3000 FEET REMAINS IN
EFFECT FROM 1 PM THIS AFTERNOON TO 4 PM PST SUNDAY. 

TOTAL SNOWFALL AMOUNTS OF 5 TO 9 INCHES ARE EXPECTED ABOVE
3000 FEET FROM EARLY THIS AFTERNOON THROUGH SUNDAY AFTERNOON.
BREEZY WEST TO NORTHWEST WINDS WILL CREATE LOCAL BLOWING AND
DRIFTING SNOW...ESPECIALLY OVER THE CAMAS PRAIRIE.

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 290932
WSWMSO

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE MISSOULA MT
232 AM MST SAT DEC 29 2007

...SEVERAL WINTER STORMS EXPECTED TO IMPACT THE REGION...

.A STRONG AND MOIST NORTHWESTERLY FLOW PATTERN WILL PUSH A SERIES
OF WINTER STORMS 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. THERE IS A CHANCE THAT
THIS EVENT COULD CONTINUE INTO MONDAY AS THE ENERGETIC
NORTHWESTERLY FLOW REMAINS OVERHEAD.

MTZ001-292200-
/O.CON.KMSO.HS.W.0024.071229T1200Z-071231T0000Z/
KOOTENAI/CABINET REGION-
232 AM MST SAT DEC 29 2007

...HEAVY SNOW WARNING REMAINS IN EFFECT UNTIL 5 PM MST SUNDAY
ABOVE 3000 FEET...

A HEAVY SNOW WARNING ABOVE 3000 FEET REMAINS IN EFFECT UNTIL 5 PM
MST SUNDAY. 

TOTAL SNOWFALL AMOUNTS OF 8 TO 13 INCHES WITH LOCAL AMOUNTS UP TO
17 INCHES ARE EXPECTED BY LATE SUNDAY AFTERNOON ABOVE 3000 FEET.
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.

$$

MTZ007-292200-
/O.CON.KMSO.HS.W.0024.071229T1800Z-071231T0600Z/
BUTTE/BLACKFOOT REGION-
232 AM MST SAT DEC 29 2007

...HEAVY SNOW WARNING REMAINS IN EFFECT FROM 11 AM THIS MORNING
TO 11 PM MST SUNDAY ABOVE 6000 FEET...

A HEAVY SNOW WARNING ABOVE 6000 FEET REMAINS IN EFFECT FROM 11 AM
THIS MORNING TO 11 PM MST SUNDAY. 

TOTAL SNOWFALL AMOUNTS OF 10 TO 13 INCHES ARE EXPECTED BY LATE
SUNDAY AFTERNOON ABOVE 6000 FEET. WEST FACING MOUNTAIN SLOPES
WILL BE THE MOST IMPACTED BY THIS EVENT...INCLUDING AREAS ABOVE
BUTTE ALONG THE CONTINENTAL DIVIDE AND US HIGHWAY 12 HEADING EAST
TOWARD MCDONALD PASS.

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

$$

IDZ010-292200-
/O.CON.KMSO.HS.W.0024.071229T1200Z-071231T0000Z/
EASTERN LEMHI COUNTY-
232 AM MST SAT DEC 29 2007

...HEAVY SNOW WARNING REMAINS IN EFFECT UNTIL 5 PM MST SUNDAY
ABOVE 6500 FEET...

A HEAVY SNOW WARNING ABOVE 6500 FEET REMAINS IN EFFECT UNTIL 5 PM
MST SUNDAY. 

TOTAL SNOWFALL AMOUNTS OF 6 TO 12 INCHES ARE EXPECTED BY LATE
SUNDAY AFTERNOON ABOVE 6500 FEET. WEST FACING MOUNTAIN SLOPES
WILL BE THE MOST IMPACTED BY THIS EVENT...INCLUDING LOST TRAIL
PASS.

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-MTZ006-292200-
/O.CON.KMSO.WS.W.0011.071229T1200Z-071231T0000Z/
NORTHERN CLEARWATER MOUNTAINS-SOUTHERN CLEARWATER MOUNTAINS-
BITTERROOT/SAPPHIRE MOUNTAINS-
232 AM MST SAT DEC 29 2007 /132 AM 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. 

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
OR IMPOSSIBLE.

$$

MTZ004-292200-
/O.CON.KMSO.WS.W.0011.071229T1200Z-071231T0000Z/
LOWER CLARK FORK REGION-
232 AM MST SAT DEC 29 2007

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST SUNDAY
ABOVE 3000 FEET...

A WINTER STORM WARNING ABOVE 3000 FEET REMAINS IN EFFECT UNTIL
5 PM MST SUNDAY. 

TOTAL SNOWFALL AMOUNTS OF 11 TO 16 INCHES WITH LOCAL AMOUNTS UP
TO 24 INCHES ARE EXPECTED BY LATE SUNDAY AFTERNOON ABOVE
3000 FEET. IN ADDITION... BREEZY WEST TO NORTHWEST WINDS WILL
CREATE AREAS OF BLOWING AND DRIFTING SNOW LATE TONIGHT THROUGH
THROUGH SUNDAY AFTERNOON. WEST FACING MOUNTAIN SLOPES WILL BE THE
MOST IMPACTED BY THIS EVENT...INCLUDING LOOKOUT PASS.

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

$$

MTZ002-043-292200-
/O.CON.KMSO.WS.W.0011.071229T1200Z-071231T0000Z/
WEST GLACIER REGION-POTOMAC/SEELEY LAKE REGION-
232 AM MST SAT DEC 29 2007

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST SUNDAY
ABOVE 4000 FEET...

A WINTER STORM WARNING ABOVE 4000 FEET REMAINS IN EFFECT UNTIL
5 PM MST SUNDAY. 

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 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
OR IMPOSSIBLE.

$$

IDZ007-008-292200-
/O.CON.KMSO.SB.Y.0012.071229T2100Z-071231T0000Z/
OROFINO/GRANGEVILLE REGION-LOWER HELLS CANYON/SALMON RIVER REGION-
132 AM PST SAT DEC 29 2007

...SNOW AND BLOWING SNOW ADVISORY REMAINS IN EFFECT FROM 1 PM
THIS AFTERNOON TO 4 PM PST SUNDAY ABOVE 3000 FEET...

A SNOW AND BLOWING SNOW ADVISORY ABOVE 3000 FEET REMAINS IN
EFFECT FROM 1 PM THIS AFTERNOON TO 4 PM PST SUNDAY. 

TOTAL SNOWFALL AMOUNTS OF 5 TO 9 INCHES ARE EXPECTED ABOVE
3000 FEET FROM EARLY THIS AFTERNOON THROUGH SUNDAY AFTERNOON.
BREEZY WEST TO NORTHWEST WINDS WILL CREATE LOCAL BLOWING AND
DRIFTING SNOW...ESPECIALLY OVER THE CAMAS PRAIRIE.

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 291223
WSWMSO

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE MISSOULA MT
523 AM MST SAT DEC 29 2007

...SEVERAL WINTER STORMS EXPECTED TO IMPACT THE REGION...

.A STRONG AND MOIST NORTHWESTERLY FLOW PATTERN WILL PUSH A SERIES
OF WINTER STORMS 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. THERE IS A CHANCE THAT
THIS EVENT COULD CONTINUE INTO MONDAY AS THE ENERGETIC
NORTHWESTERLY FLOW REMAINS OVERHEAD.

MTZ001-292200-
/O.CON.KMSO.HS.W.0024.000000T0000Z-071231T0000Z/
KOOTENAI/CABINET REGION-
523 AM MST SAT DEC 29 2007

...HEAVY SNOW WARNING REMAINS IN EFFECT UNTIL 5 PM MST SUNDAY
ABOVE 3000 FEET...

A HEAVY SNOW WARNING ABOVE 3000 FEET REMAINS IN EFFECT UNTIL 5 PM
MST SUNDAY. 

TOTAL SNOWFALL AMOUNTS OF 8 TO 13 INCHES WITH LOCAL AMOUNTS UP TO
17 INCHES ARE EXPECTED BY LATE SUNDAY AFTERNOON ABOVE 3000 FEET.
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.

$$

MTZ007-292200-
/O.CON.KMSO.HS.W.0024.071229T1800Z-071231T0600Z/
BUTTE/BLACKFOOT REGION-
523 AM MST SAT DEC 29 2007

...HEAVY SNOW WARNING REMAINS IN EFFECT FROM 11 AM THIS MORNING
TO 11 PM MST SUNDAY ABOVE 6000 FEET...

A HEAVY SNOW WARNING ABOVE 6000 FEET REMAINS IN EFFECT FROM 11 AM
THIS MORNING TO 11 PM MST SUNDAY. 

TOTAL SNOWFALL AMOUNTS OF 10 TO 13 INCHES ARE EXPECTED BY LATE
SUNDAY AFTERNOON ABOVE 6000 FEET. WEST FACING MOUNTAIN SLOPES
WILL BE THE MOST IMPACTED BY THIS EVENT...INCLUDING AREAS ABOVE
BUTTE ALONG THE CONTINENTAL DIVIDE AND US HIGHWAY 12 HEADING EAST
TOWARD MCDONALD PASS.

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

$$

IDZ010-292200-
/O.CON.KMSO.HS.W.0024.000000T0000Z-071231T0000Z/
EASTERN LEMHI COUNTY-
523 AM MST SAT DEC 29 2007

...HEAVY SNOW WARNING REMAINS IN EFFECT UNTIL 5 PM MST SUNDAY
ABOVE 6500 FEET...

A HEAVY SNOW WARNING ABOVE 6500 FEET REMAINS IN EFFECT UNTIL 5 PM
MST SUNDAY. 

TOTAL SNOWFALL AMOUNTS OF 6 TO 12 INCHES ARE EXPECTED BY LATE
SUNDAY AFTERNOON ABOVE 6500 FEET. WEST FACING MOUNTAIN SLOPES
WILL BE THE MOST IMPACTED BY THIS EVENT...INCLUDING LOST TRAIL
PASS.

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-MTZ006-292200-
/O.CON.KMSO.WS.W.0011.000000T0000Z-071231T0000Z/
NORTHERN CLEARWATER MOUNTAINS-SOUTHERN CLEARWATER MOUNTAINS-
BITTERROOT/SAPPHIRE MOUNTAINS-
523 AM MST SAT DEC 29 2007 /423 AM 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. 

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
OR IMPOSSIBLE.

$$

MTZ004-292200-
/O.CON.KMSO.WS.W.0011.000000T0000Z-071231T0000Z/
LOWER CLARK FORK REGION-
523 AM MST SAT DEC 29 2007

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST SUNDAY
ABOVE 3000 FEET...

A WINTER STORM WARNING ABOVE 3000 FEET REMAINS IN EFFECT UNTIL
5 PM MST SUNDAY. 

TOTAL SNOWFALL AMOUNTS OF 11 TO 16 INCHES WITH LOCAL AMOUNTS UP
TO 24 INCHES ARE EXPECTED BY LATE SUNDAY AFTERNOON ABOVE
3000 FEET. IN ADDITION... BREEZY WEST TO NORTHWEST WINDS WILL
CREATE AREAS OF BLOWING AND DRIFTING SNOW LATE TONIGHT THROUGH
THROUGH SUNDAY AFTERNOON. WEST FACING MOUNTAIN SLOPES WILL BE THE
MOST IMPACTED BY THIS EVENT...INCLUDING LOOKOUT PASS.

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

$$

MTZ002-043-292200-
/O.CON.KMSO.WS.W.0011.000000T0000Z-071231T0000Z/
WEST GLACIER REGION-POTOMAC/SEELEY LAKE REGION-
523 AM MST SAT DEC 29 2007

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST SUNDAY
ABOVE 4000 FEET...

A WINTER STORM WARNING ABOVE 4000 FEET REMAINS IN EFFECT UNTIL
5 PM MST SUNDAY. 

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 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
OR IMPOSSIBLE.

$$

MTZ003-292200-
/O.NEW.KMSO.SN.Y.0048.071229T1223Z-071230T1800Z/
FLATHEAD/MISSION VALLEYS-
523 AM MST SAT DEC 29 2007

...SNOW ADVISORY IN EFFECT UNTIL 11 AM MST SUNDAY...

THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A SNOW
ADVISORY...WHICH IS IN EFFECT UNTIL 11 AM MST SUNDAY. 

PERIODS OF SNOW WILL PRODUCE 3 TO 6 INCHES OF SNOWFALL ACROSS THE
FLATHEAD AND MISSION VALLEYS THROUGH SUNDAY MORNING.
KALISPELL...COLUMBIA FALLS...WHITEFISH AND POLSON WILL BE AMONG
THE AREAS IMPACTED BY THE INTERMITTENT HEAVY SNOW SHOWERS.

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.

$$

MTZ005-292200-
/O.NEW.KMSO.SN.Y.0048.071229T1223Z-071230T1800Z/
MISSOULA/BITTERROOT VALLEYS-
523 AM MST SAT DEC 29 2007

...SNOW ADVISORY IN EFFECT UNTIL 11 AM MST SUNDAY...

THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A SNOW
ADVISORY...WHICH IS IN EFFECT UNTIL 11 AM MST SUNDAY. 

PERIODS OF SNOW WILL PRODUCE 2 TO 4 INCHES OF SNOWFALL ACROSS THE
MISSOULA VALLEY AND ALONG THE BENCHES OF THE BITTERROOT VALLEY
THROUGH SUNDAY MORNING. THE US HIGHWAY 93 CORRIDOR BETWEEN LOLO
AND DARBY CAN EXPECT TO SEE UP TO 2 INCHES FROM THE INTERMITTENT
HEAVY SNOW SHOWERS DURING THIS PERIOD.

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.

$$

IDZ007-008-292200-
/O.CON.KMSO.SB.Y.0012.071229T2100Z-071231T0000Z/
OROFINO/GRANGEVILLE REGION-LOWER HELLS CANYON/SALMON RIVER REGION-
423 AM PST SAT DEC 29 2007

...SNOW AND BLOWING SNOW ADVISORY REMAINS IN EFFECT FROM 1 PM
THIS AFTERNOON TO 4 PM PST SUNDAY ABOVE 3000 FEET...

A SNOW AND BLOWING SNOW ADVISORY ABOVE 3000 FEET REMAINS IN
EFFECT FROM 1 PM THIS AFTERNOON TO 4 PM PST SUNDAY. 

TOTAL SNOWFALL AMOUNTS OF 5 TO 9 INCHES ARE EXPECTED ABOVE
3000 FEET FROM EARLY THIS AFTERNOON THROUGH SUNDAY AFTERNOON.
BREEZY WEST TO NORTHWEST WINDS WILL CREATE LOCAL BLOWING AND
DRIFTING SNOW...ESPECIALLY OVER THE CAMAS PRAIRIE.

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 291506
WSWMSO

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE MISSOULA MT
806 AM MST SAT DEC 29 2007

...SEVERAL WINTER STORMS EXPECTED TO IMPACT THE REGION...

.A STRONG AND MOIST NORTHWESTERLY FLOW PATTERN WILL PUSH A SERIES
OF WINTER STORMS 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. THERE IS A CHANCE THAT
THIS EVENT COULD CONTINUE INTO MONDAY AS THE ENERGETIC
NORTHWESTERLY FLOW REMAINS OVERHEAD.

MTZ001-292200-
/O.CON.KMSO.HS.W.0024.000000T0000Z-071231T0000Z/
KOOTENAI/CABINET REGION-
806 AM 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. 

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.

$$

MTZ007-292200-
/O.CON.KMSO.HS.W.0024.071229T1800Z-071231T0600Z/
BUTTE/BLACKFOOT REGION-
806 AM MST SAT DEC 29 2007

...HEAVY SNOW WARNING REMAINS IN EFFECT FROM 11 AM THIS MORNING
TO 11 PM MST SUNDAY ABOVE 6000 FEET...

A HEAVY SNOW WARNING ABOVE 6000 FEET REMAINS IN EFFECT FROM 11 AM
THIS MORNING TO 11 PM MST SUNDAY. 

TOTAL SNOWFALL AMOUNTS OF 10 TO 13 INCHES ARE EXPECTED BY LATE
SUNDAY AFTERNOON ABOVE 6000 FEET. WEST FACING MOUNTAIN SLOPES
WILL BE THE MOST IMPACTED BY THIS EVENT...INCLUDING AREAS ABOVE
BUTTE ALONG THE CONTINENTAL DIVIDE AND US HIGHWAY 12 HEADING EAST
TOWARD MCDONALD PASS.

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

$$

IDZ010-292200-
/O.CON.KMSO.HS.W.0024.000000T0000Z-071231T0000Z/
EASTERN LEMHI COUNTY-
806 AM MST SAT DEC 29 2007

...HEAVY SNOW WARNING REMAINS IN EFFECT UNTIL 5 PM MST SUNDAY
ABOVE 6500 FEET...

A HEAVY SNOW WARNING ABOVE 6500 FEET REMAINS IN EFFECT UNTIL 5 PM
MST SUNDAY. 

TOTAL SNOWFALL AMOUNTS OF 8 TO 12 INCHES ARE EXPECTED BY LATE
SUNDAY AFTERNOON ABOVE 6500 FEET. WEST FACING MOUNTAIN SLOPES WILL
BE THE MOST IMPACTED BY THIS EVENT...INCLUDING LOST TRAIL PASS.

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-MTZ004-006-292200-
/O.CON.KMSO.WS.W.0011.000000T0000Z-071231T0000Z/
NORTHERN CLEARWATER MOUNTAINS-SOUTHERN CLEARWATER MOUNTAINS-
LOWER CLARK FORK REGION-BITTERROOT/SAPPHIRE MOUNTAINS-
806 AM MST SAT DEC 29 2007 /706 AM 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. 

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
OR IMPOSSIBLE.

$$

MTZ002-043-292200-
/O.CON.KMSO.WS.W.0011.000000T0000Z-071231T0000Z/
WEST GLACIER REGION-POTOMAC/SEELEY LAKE REGION-
806 AM MST SAT DEC 29 2007

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST SUNDAY
ABOVE 4000 FEET...

A WINTER STORM WARNING ABOVE 4000 FEET REMAINS IN EFFECT UNTIL
5 PM MST SUNDAY. 

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 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
OR IMPOSSIBLE.

$$

IDZ007-008-292200-
/O.EXT.KMSO.SB.Y.0012.071229T1506Z-071231T0000Z/
OROFINO/GRANGEVILLE REGION-LOWER HELLS CANYON/SALMON RIVER REGION-
706 AM PST SAT DEC 29 2007

...SNOW AND BLOWING SNOW ADVISORY NOW IN EFFECT UNTIL 4 PM PST
SUNDAY...

THE SNOW AND BLOWING SNOW ADVISORY IS NOW IN EFFECT UNTIL 4 PM
PST SUNDAY. 

TOTAL SNOWFALL AMOUNTS OF 5 TO 9 INCHES ARE EXPECTED THROUGH
SUNDAY AFTERNOON. BREEZY WEST TO NORTHWEST WINDS WILL CREATE LOCAL
BLOWING AND DRIFTING SNOW...ESPECIALLY OVER THE CAMAS PRAIRIE.

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.

$$

MTZ003-292200-
/O.CON.KMSO.SN.Y.0048.000000T0000Z-071230T1800Z/
FLATHEAD/MISSION VALLEYS-
806 AM MST SAT DEC 29 2007

...SNOW ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST SUNDAY...

A SNOW ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST SUNDAY. 

PERIODS OF SNOW WILL PRODUCE 3 TO 6 INCHES OF SNOWFALL ACROSS THE
FLATHEAD AND MISSION VALLEYS THROUGH SUNDAY MORNING. KALISPELL...
COLUMBIA FALLS...WHITEFISH AND POLSON WILL BE AMONG THE AREAS
IMPACTED BY THE INTERMITTENT HEAVY SNOW SHOWERS.

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.

$$

MTZ005-292200-
/O.CON.KMSO.SN.Y.0048.000000T0000Z-071230T1800Z/
MISSOULA/BITTERROOT VALLEYS-
806 AM MST SAT DEC 29 2007

...SNOW ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST SUNDAY...

A SNOW ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST SUNDAY. 

PERIODS OF SNOW WILL PRODUCE 2 TO 4 INCHES OF SNOWFALL ACROSS THE
MISSOULA VALLEY AND ALONG THE BENCHES OF THE BITTERROOT VALLEY
THROUGH SUNDAY MORNING. THE US HIGHWAY 93 CORRIDOR BETWEEN LOLO
AND DARBY CAN EXPECT TO SEE UP TO 2 INCHES FROM THE INTERMITTENT
HEAVY SNOW SHOWERS DURING THIS PERIOD.

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 291717
WSWMSO

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE MISSOULA MT
1017 AM 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. THERE IS A CHANCE THAT THIS EVENT
COULD CONTINUE INTO MONDAY AS THE ENERGETIC NORTHWESTERLY FLOW
REMAINS OVERHEAD.

IDZ007-008-291830-
/O.CAN.KMSO.SB.Y.0012.000000T0000Z-071231T0000Z/
OROFINO/GRANGEVILLE REGION-LOWER HELLS CANYON/SALMON RIVER REGION-
917 AM PST SAT DEC 29 2007

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

THE NATIONAL WEATHER SERVICE IN MISSOULA HAS CANCELLED THE SNOW
AND BLOWING SNOW ADVISORY. ANOTHER WINTER WEATHER HIGHLIGHT FOR
TONIGHT MAY BE ISSUED THIS AFTERNOON. AN ADDITIONAL 1-2 INCHES MAY
ACCUMULATE THIS AFTERNOON AS SHOWERS MOVE TROUGH THE REGION.

$$

MTZ005-291830-
/O.CAN.KMSO.SN.Y.0048.000000T0000Z-071230T1800Z/
MISSOULA/BITTERROOT VALLEYS-
1017 AM MST SAT DEC 29 2007

...SNOW ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN MISSOULA HAS CANCELLED THE SNOW
ADVISORY. ANOTHER WINTER WEATHER HIGHLIGHT FOR TONIGHT MAY BE
ISSUED THIS AFTERNOON. AN ADDITIONAL 1-2 INCHES MAY ACCUMULATE
THIS AFTERNOON AS SHOWERS MOVE TROUGH THE REGION.

$$

MTZ007-292300-
/O.EXT.KMSO.HS.W.0024.071230T0000Z-071231T0600Z/
BUTTE/BLACKFOOT REGION-
1017 AM MST SAT DEC 29 2007

...HEAVY SNOW WARNING NOW IN EFFECT FROM 5 PM THIS AFTERNOON TO
11 PM MST SUNDAY ABOVE 6000 FEET...

THE HEAVY SNOW WARNING ABOVE 6000 FEET IS NOW IN EFFECT FROM 5 PM
THIS AFTERNOON TO 11 PM MST SUNDAY. 

TOTAL SNOWFALL AMOUNTS OF 10 TO 13 INCHES ARE EXPECTED BY LATE
SUNDAY AFTERNOON ABOVE 6000 FEET. WEST FACING MOUNTAIN SLOPES
WILL BE THE MOST IMPACTED BY THIS EVENT...INCLUDING AREAS ABOVE
BUTTE ALONG THE CONTINENTAL DIVIDE AND US HIGHWAY 12 HEADING EAST
TOWARD MCDONALD PASS.

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

$$

MTZ001-292300-
/O.CON.KMSO.HS.W.0024.000000T0000Z-071231T0000Z/
KOOTENAI/CABINET REGION-
1017 AM 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 IS TAPERING OFF THIS MORNING...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.

$$

IDZ010-292300-
/O.CON.KMSO.HS.W.0024.000000T0000Z-071231T0000Z/
EASTERN LEMHI COUNTY-
1017 AM MST SAT DEC 29 2007

...HEAVY SNOW WARNING REMAINS IN EFFECT UNTIL 5 PM MST SUNDAY
ABOVE 6500 FEET...

A HEAVY SNOW WARNING ABOVE 6500 FEET REMAINS IN EFFECT UNTIL 5 PM
MST SUNDAY. 

TOTAL SNOWFALL AMOUNTS OF 8 TO 12 INCHES ARE EXPECTED BY LATE
SUNDAY AFTERNOON ABOVE 6500 FEET. WEST FACING MOUNTAIN SLOPES
WILL BE THE MOST IMPACTED BY THIS EVENT...INCLUDING LOST TRAIL
PASS.

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-MTZ004-006-292300-
/O.CON.KMSO.WS.W.0011.000000T0000Z-071231T0000Z/
NORTHERN CLEARWATER MOUNTAINS-SOUTHERN CLEARWATER MOUNTAINS-
LOWER CLARK FORK REGION-BITTERROOT/SAPPHIRE MOUNTAINS-
1017 AM MST SAT DEC 29 2007 /917 AM 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 IS TAPERING OFF THIS MORNING...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
OR IMPOSSIBLE.

$$

MTZ002-043-292300-
/O.CON.KMSO.WS.W.0011.000000T0000Z-071231T0000Z/
WEST GLACIER REGION-POTOMAC/SEELEY LAKE REGION-
1017 AM 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 IS TAPERING OFF THIS MORNING...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 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
OR IMPOSSIBLE.

$$

MTZ003-292300-
/O.CON.KMSO.SN.Y.0048.000000T0000Z-071230T1800Z/
FLATHEAD/MISSION VALLEYS-
1017 AM MST SAT DEC 29 2007

...SNOW ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST SUNDAY...

A SNOW ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST SUNDAY. 

PERIODS OF SNOW WILL PRODUCE 3 TO 6 INCHES OF SNOWFALL ACROSS THE
FLATHEAD AND MISSION VALLEYS THROUGH SUNDAY MORNING. KALISPELL...
COLUMBIA FALLS...WHITEFISH AND POLSON WILL BE AMONG THE AREAS
IMPACTED BY THE INTERMITTENT HEAVY SNOW SHOWERS.

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 291950
WSWMSO

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE MISSOULA MT
1250 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. THERE IS A
CHANCE THAT THIS EVENT COULD CONTINUE INTO MONDAY AS THE
ENERGETIC NORTHWESTERLY FLOW REMAINS OVERHEAD.

MTZ003-292100-
/O.CAN.KMSO.SN.Y.0048.000000T0000Z-071230T1800Z/
FLATHEAD/MISSION VALLEYS-
1250 PM MST SAT DEC 29 2007

...SNOW ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN MISSOULA HAS CANCELLED THE SNOW
ADVISORY. ANOTHER WINTER WEATHER HIGHLIGHT FOR TONIGHT MAY BE
ISSUED THIS AFTERNOON. AN ADDITIONAL 1-2 INCHES MAY ACCUMULATE
THIS AFTERNOON AS SHOWERS MOVE TROUGH THE REGION.

$$

MTZ001-292300-
/O.CON.KMSO.HS.W.0024.000000T0000Z-071231T0000Z/
KOOTENAI/CABINET REGION-
1250 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 IS TAPERING OFF THIS MORNING...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.

$$

MTZ007-292300-
/O.CON.KMSO.HS.W.0024.071230T0000Z-071231T0600Z/
BUTTE/BLACKFOOT REGION-
1250 PM MST SAT DEC 29 2007

...HEAVY SNOW WARNING REMAINS IN EFFECT FROM 5 PM THIS AFTERNOON
TO 11 PM MST SUNDAY ABOVE 6000 FEET...

A HEAVY SNOW WARNING ABOVE 6000 FEET REMAINS IN EFFECT FROM 5 PM
THIS AFTERNOON TO 11 PM MST SUNDAY. 

TOTAL SNOWFALL AMOUNTS OF 10 TO 13 INCHES ARE EXPECTED BY LATE
SUNDAY AFTERNOON ABOVE 6000 FEET. WEST FACING MOUNTAIN SLOPES
WILL BE THE MOST IMPACTED BY THIS EVENT...INCLUDING AREAS ABOVE
BUTTE ALONG THE CONTINENTAL DIVIDE AND US HIGHWAY 12 HEADING EAST
TOWARD MCDONALD PASS.

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

$$

IDZ010-292300-
/O.CON.KMSO.HS.W.0024.000000T0000Z-071231T0000Z/
EASTERN LEMHI COUNTY-
1250 PM MST SAT DEC 29 2007

...HEAVY SNOW WARNING REMAINS IN EFFECT UNTIL 5 PM MST SUNDAY
ABOVE 6500 FEET...

A HEAVY SNOW WARNING ABOVE 6500 FEET REMAINS IN EFFECT UNTIL 5 PM
MST SUNDAY. 

TOTAL SNOWFALL AMOUNTS OF 8 TO 12 INCHES ARE EXPECTED BY LATE
SUNDAY AFTERNOON ABOVE 6500 FEET. WEST FACING MOUNTAIN SLOPES
WILL BE THE MOST IMPACTED BY THIS EVENT...INCLUDING LOST TRAIL
PASS.

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-MTZ004-006-292300-
/O.CON.KMSO.WS.W.0011.000000T0000Z-071231T0000Z/
NORTHERN CLEARWATER MOUNTAINS-SOUTHERN CLEARWATER MOUNTAINS-
LOWER CLARK FORK REGION-BITTERROOT/SAPPHIRE MOUNTAINS-
1250 PM MST SAT DEC 29 2007 /1150 AM 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 IS TAPERING OFF THIS MORNING...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
OR IMPOSSIBLE.

$$

MTZ002-043-292300-
/O.CON.KMSO.WS.W.0011.000000T0000Z-071231T0000Z/
WEST GLACIER REGION-POTOMAC/SEELEY LAKE REGION-
1250 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 IS TAPERING OFF THIS MORNING...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 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
OR IMPOSSIBLE.

$$
000 
WWUS45 KMSO 292218
WSWMSO

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE MISSOULA MT
318 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. 

MTZ007-292330-
/O.CAN.KMSO.HS.W.0024.071230T0000Z-071231T0600Z/
BUTTE/BLACKFOOT REGION-
318 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.

$$

IDZ010-292330-
/O.CAN.KMSO.HS.W.0024.000000T0000Z-071231T0000Z/
EASTERN LEMHI COUNTY-
318 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.

$$

MTZ001-300400-
/O.CON.KMSO.HS.W.0024.000000T0000Z-071231T0000Z/
KOOTENAI/CABINET REGION-
318 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-MTZ004-006-300400-
/O.CON.KMSO.WS.W.0011.000000T0000Z-071231T0000Z/
NORTHERN CLEARWATER MOUNTAINS-SOUTHERN CLEARWATER MOUNTAINS-
LOWER CLARK FORK REGION-BITTERROOT/SAPPHIRE MOUNTAINS-
318 PM MST SAT DEC 29 2007 /218 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
OR IMPOSSIBLE.

$$

MTZ002-043-300400-
/O.CON.KMSO.WS.W.0011.000000T0000Z-071231T0000Z/
WEST GLACIER REGION-POTOMAC/SEELEY LAKE REGION-
318 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 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
OR IMPOSSIBLE.

$$

IDZ007-008-300400-
/O.NEW.KMSO.SB.Y.0013.071230T0300Z-071230T1200Z/
OROFINO/GRANGEVILLE REGION-LOWER HELLS CANYON/SALMON RIVER REGION-
218 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.

$$

MTZ003-005-300400-
/O.NEW.KMSO.SN.Y.0049.071230T0300Z-071231T0000Z/
FLATHEAD/MISSION VALLEYS-MISSOULA/BITTERROOT VALLEYS-
318 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 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.

$$

What forecasters said that day

The local office's own words before this winter storm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Missoula, MT wrote its last area forecast discussion before this winter storm warning went out at Dec 29, 12:42 AM PST, 45 minutes earlier.

Area forecast discussion, Dec 29, 12:42 AM PST, 45 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MISSOULA MT
142 AM MST SAT DEC 29 2007

...HEAVY SNOWFALL EVENT TO IMPACT MOUNTAINS THROUGH SUNDAY
AFTERNOON...

.DISCUSSION...A STRONG AND MOIST WEST TO NORTHWEST FLOW WILL
PERSIST OVER WESTERN MONTANA AND NORTH CENTRAL IDAHO THROUGH
SUNDAY AFTERNOON. DURING THIS PERIOD A SERIES OF DISTURBANCES WILL
MOVE OVER THE AREA IN THE FLOW PRODUCING HEAVY SNOWFALL IN THE
MOUNTAINS. SNOWFALL AMOUNTS WILL BE ENHANCED BY THE EXPECTED
STRONG UPSLOPE FLOW AND AN UPPER LEVEL JET STREAM THAT WILL
POSITION ITSELF OVER THE AREA LATER THIS AFTERNOON THROUGH SUNDAY.
AS THE PRESSURE GRADIENTS AND LOW LEVEL WIND FLOW INTENSIFY ON
SUNDAY...WINDS WILL INCREASE ACROSS THE HIGHER TERRAIN. FOR THIS
REASON...WINTER STORM WARNINGS HAVE BEEN ISSUED FOR NORTH CENTRAL
IDAHO...THE BITTERROOT/SAPPHIRE MOUNTAINS...LOOKOUT PASS
AREA...AND THE GLACIER PARK AREA (INCLUDING US HIGHWAY 2 NEAR
MARIAS PASS.)

THERE IS A POSSIBILITY THAT THE WARNINGS COULD BE EXTENDED INTO
MONDAY (AS HEAVY SNOW WARNINGS.) THOUGH THE LOW LEVEL WIND FLOW
WEAKENS...THE NW FLOW ALOFT IS EXPECTED TO INTENSIFY AS THE UPPER
LEVEL JET ONCE AGAIN MOVES OVER THE AREA. AS A RESULT...HAVE KEPT
LIKELY POPS IN THE FORECAST THROUGH MONDAY.

AN UPPER LEVEL RIDGE BUILDS INTO THE INTERMOUNTAIN WEST ON TUESDAY
BRINGING WITH IT DRIER AIR ALOFT THAT WILL LEAD TO SOME CLEAR
SKIES. A LITTLE MOISTURE LEFT OVER IN THE LOW LEVELS MAY BE JUST
ENOUGH FOR SOME FOG EARLY TUESDAY. WITH THE FRESH SNOW COVER AND CLEAR
SKIES...VALLEY INVERSIONS WILL SETUP AND WITH WARM AIR MOVING IN
ALOFT IT WILL BE HARD TO MIX THEM OUT. A STRONG PRESSURE GRADIENT
ON WEDNESDAY SHOULD BE ENOUGH TO MIX OUT SOME OF THE LARGER
VALLEYS ACROSS WESTERN MONTANA AND CENTRAL IDAHO. THE MISSOULA
VALLEY NORTH TO EXTREME NORTHWEST MONTANA WILL LIKELY NOT HAVE A
STRONG ENOUGH GRADIENT TO MIX OUT THE INVERSION LEAVING THESE
LOCATIONS A BIT COOLER. THE RIDGE WILL START TO BREAK DOWN ON
THURSDAY AS OUR NEXT PACIFIC STORM APPROACHES BRINGING THE CHANCE
OF PRECIPITATION BY THURSDAY NIGHT.

&&

.AVIATION...SNOW WILL OBSCURE MOUNTAINS AND PEAKS THROUGH SUNDAY
AS A SERIES OF WINTER WEATHER SYSTEMS MOVE ACROSS THE AREA.
AIRFIELDS AT KMSO AND KGPI MAY PICK UP A FEW INCHES OF SNOW.
BREEZY WINDS AND FALLING SNOW NEAR GRANGEVILLE MAY CREATE LOCAL
WHITEOUT CONDITIONS THROUGH SUNDAY AFTERNOON.

&&

.MSO WATCHES/WARNINGS/ADVISORIES...
MT...WINTER STORM WARNING FROM 5 AM EARLY THIS MORNING TO 5 PM
     MST SUNDAY FOR BITTERROOT/SAPPHIRE MOUNTAINS.

     WINTER STORM WARNING FROM 5 AM EARLY THIS MORNING TO 5 PM MST
     SUNDAY ABOVE 3000 FEET FOR LOWER CLARK FORK REGION.

     WINTER STORM WARNING FROM 5 AM EARLY THIS MORNING TO 5 PM MST
     SUNDAY ABOVE 4000 FEET FOR POTOMAC/SEELEY LAKE REGION-WEST
     GLACIER REGION.

     HEAVY SNOW WARNING FROM 5 AM EARLY THIS MORNING TO 5 PM MST
     SUNDAY ABOVE 3000 FEET FOR KOOTENAI/CABINET REGION.

     HEAVY SNOW WARNING FROM 11 AM THIS MORNING TO 11 PM MST SUNDAY
     ABOVE 6000 FEET FOR BUTTE/BLACKFOOT REGION.

ID...HEAVY SNOW WARNING UNTIL 4 AM PST EARLY THIS MORNING FOR
     NORTHERN CLEARWATER MOUNTAINS-SOUTHERN CLEARWATER MOUNTAINS.

     WINTER STORM WARNING FROM 4 AM EARLY THIS MORNING TO 4 PM PST
     SUNDAY FOR NORTHERN CLEARWATER MOUNTAINS-SOUTHERN
     CLEARWATER MOUNTAINS.

     HEAVY SNOW WARNING FROM 5 AM EARLY THIS MORNING TO 5 PM MST
     SUNDAY ABOVE 6500 FEET FOR EASTERN LEMHI COUNTY.

&&

SHORT TERM...HENRY
LONG TERM....LOEFFELBEIN
AVIATION...HENRY
Hazardous weather outlook, Dec 29, 1:17 AM PST, 10 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE MISSOULA MT
217 AM MST SAT DEC 29 2007

MTZ003-005-292200-
FLATHEAD/MISSION VALLEYS-MISSOULA/BITTERROOT VALLEYS-
217 AM MST SAT DEC 29 2007

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

.DAY ONE...TODAY AND TONIGHT

LIGHT TO MODERATE SNOWFALL AMOUNTS ARE POSSIBLE ACROSS THE VALLEYS
LATER TODAY THROUGH SUNDAY. WINTER WEATHER HIGHLIGHTS MAY BE
NEEDED.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

ACCUMULATING SNOWFALL MAY CONTINUE INTO SUNDAY NIGHT AS THE ACTIVE
PATTERN PERSISTS OVER THE AREA.

.SPOTTER INFORMATION STATEMENT...

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

The office that day

Everything else NWS Missoula, MT issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Dec 29, 1:27 AM PSTSnow and Blowing Snow AdvisoryMSOClearwater, Idaho8 hr
Dec 29, 2:18 PM PSTSnow and Blowing Snow AdvisoryMSOClearwater, Idaho, Lemhi29 hr
Dec 29, 4:23 AM PSTSnow AdvisoryMSOFlathead, Lake, Missoula, Ravalli, Sanders7 hr
Dec 29, 2:18 PM PSTSnow AdvisoryMSOFlathead, Lake, Missoula, Ravalli, Sanders24 hr

Nearby

Winter Storm Warnings in Montana, 2007Winter Storm Warnings in Idaho, 2007Every winter storm warning in 2007

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.