Snow Advisory 3, NWS Missoula, MT

000 
WWUS45 KMSO 050331
WSWMSO

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE MISSOULA MT
831 PM MST THU JAN 4 2007

.A WEATHER DISTURBANCE WILL MOVE ACROSS NORTH CENTRAL IDAHO AND
WESTERN MONTANA THROUGH THE OVERNIGHT HOURS BRINGING MODERATE
SNOWFALL AMOUNTS TO THE AREA. AS THIS FIRST SYSTEM EXITS THE
REGION FRIDAY MORNING...AN INTENSE FRONTAL SYSTEM WILL MOVE ON
SHORE AND WILL BEGIN ITS APPROACH TO THE INTER MOUNTAIN WEST. HEAVY
SNOWFALL AND VERY WINDY CONDITIONS WILL DEVELOP ACROSS EXTREME
NORTHWEST MONTANA IN THE EVENING AND GRADUALLY SPREAD
SOUTHEASTWARD AS THE COLD FRONT MOVES THROUGH THE AREA ON
SATURDAY. WINDS WILL BEGIN TO DIMINISH SATURDAY AFTERNOON AS THE
PRESSURE GRADIENTS BEGIN TO RELAX. HOWEVER...THE SNOW WILL
CONTINUE ACROSS PORTIONS OF SOUTHWEST MONTANA AND EAST CENTRAL
IDAHO INTO SATURDAY NIGHT AS THE FRONT CONTINUES TO MOVE TO THE
SOUTHEAST. TRAVEL WILL BECOME HAZARDOUS AT TIMES...ESPECIALLY OVER
MOUNTAIN PASSES.

MTZ004-051200-
/O.CON.KMSO.SN.Y.0003.000000T0000Z-070105T1500Z/
/O.CON.KMSO.WS.A.0002.070106T0000Z-070107T0000Z/
LOWER CLARK FORK REGION-
831 PM MST THU JAN 4 2007

...SNOW ADVISORY REMAINS IN EFFECT UNTIL 8 AM MST FRIDAY...
...WINTER STORM WATCH REMAINS IN EFFECT FROM FRIDAY AFTERNOON
THROUGH SATURDAY AFTERNOON...

A SNOW ADVISORY REMAINS IN EFFECT UNTIL 8 AM MST FRIDAY. A WINTER
STORM WATCH REMAINS IN EFFECT FROM FRIDAY AFTERNOON THROUGH
SATURDAY AFTERNOON. 

3 TO 5 INCHES OF SNOW ARE EXPECTED BY FRIDAY MORNING. LOCATIONS
ALONG INTERSTATE 90...INCLUDING LOOKOUT PASS...SAINT REGIS AND
SUPERIOR WILL BE AMONG THE AREAS IMPACTED BY THIS SYSTEM.

IN ADDITION...AN INTENSE WINTER WEATHER SYSTEM IS EXPECTED TO
MOVE ACROSS THE AREA LATE FRIDAY AFTERNOON THROUGH SATURDAY
AFTERNOON. THIS SYSTEM HAS THE POTENTIAL TO BRING VERY HEAVY
SNOWFALL AMOUNTS OF 12 TO 24 INCHES WITH GUSTY SOUTHWESTERLY
WINDS TO THE MOUNTAINS AND LESSER AMOUNTS OF 4 TO 8 INCHES TO THE
LOWER ELEVATIONS.

$$

MTZ006-051200-
/O.CON.KMSO.SN.Y.0003.000000T0000Z-070105T1500Z/
/O.CON.KMSO.WS.A.0002.070106T0600Z-070107T0600Z/
BITTERROOT/SAPPHIRE MOUNTAINS-
831 PM MST THU JAN 4 2007

...SNOW ADVISORY REMAINS IN EFFECT UNTIL 8 AM MST FRIDAY...
...WINTER STORM WATCH REMAINS IN EFFECT FROM FRIDAY EVENING
THROUGH SATURDAY EVENING...

A SNOW ADVISORY REMAINS IN EFFECT UNTIL 8 AM MST FRIDAY. A WINTER
STORM WATCH REMAINS IN EFFECT FROM FRIDAY EVENING THROUGH
SATURDAY EVENING. 

3 TO 6 INCHES OF SNOW WITH LOCAL AMOUNTS UP TO 8 INCHES IN THE
HIGHER TERRAIN ARE EXPECTED BY FRIDAY MORNING. LOLO PASS WILL BE
AMONG THE AREAS IMPACTED BY THIS SYSTEM.

IN ADDITION...AN INTENSE WINTER WEATHER SYSTEM IS EXPECTED TO
MOVE ACROSS THE AREA FRIDAY EVENING THROUGH SATURDAY EVENING.
THIS SYSTEM HAS THE POTENTIAL TO BRING VERY HEAVY SNOWFALL
AMOUNTS OF 12 TO 24 INCHES WITH GUSTY SOUTHWESTERLY WINDS TO THE
MOUNTAINS AND LESSER AMOUNTS OF 6 TO 12 INCHES TO THE LOWER
ELEVATIONS.

$$

IDZ005-006-051200-
/O.CON.KMSO.SN.Y.0003.000000T0000Z-070105T1200Z/
/O.CON.KMSO.WS.A.0002.070106T0600Z-070107T0600Z/
NORTHERN CLEARWATER MOUNTAINS-SOUTHERN CLEARWATER MOUNTAINS-
731 PM PST THU JAN 4 2007

...SNOW ADVISORY REMAINS IN EFFECT UNTIL 4 AM PST FRIDAY...
...WINTER STORM WATCH REMAINS IN EFFECT FROM FRIDAY EVENING
THROUGH SATURDAY EVENING...

A SNOW ADVISORY REMAINS IN EFFECT UNTIL 4 AM PST FRIDAY. A WINTER
STORM WATCH REMAINS IN EFFECT FROM FRIDAY EVENING THROUGH
SATURDAY EVENING. 

3 TO 6 INCHES OF SNOW WITH LOCAL AMOUNTS UP TO 8 INCHES IN THE
HIGHER TERRAIN ARE EXPECTED BY FRIDAY MORNING. LOLO PASS...ELK
RIVER...HEADQUARTERS AND ELK CITY WILL BE AMONG THE AREAS
IMPACTED BY THIS SYSTEM.

IN ADDITION...AN INTENSE WINTER WEATHER SYSTEM IS EXPECTED TO
MOVE ACROSS THE AREA FRIDAY EVENING THROUGH SATURDAY EVENING. THIS
SYSTEM HAS THE POTENTIAL TO BRING VERY HEAVY SNOWFALL AMOUNTS OF
12 TO 24 INCHES WITH GUSTY SOUTHWESTERLY WINDS TO THE MOUNTAINS
AND LESSER AMOUNTS OF 6 TO 12 INCHES TO THE LOWER ELEVATIONS.

$$

IDZ007-008-051200-
/O.CON.KMSO.SN.Y.0003.000000T0000Z-070105T1200Z/
OROFINO/GRANGEVILLE REGION-LOWER HELLS CANYON/SALMON RIVER REGION-
731 PM PST THU JAN 4 2007

...SNOW ADVISORY REMAINS IN EFFECT UNTIL 4 AM PST FRIDAY...

A SNOW ADVISORY REMAINS IN EFFECT UNTIL 4 AM PST FRIDAY. 

3 TO 6 INCHES OF SNOW WITH LOCAL AMOUNTS UP TO 8 INCHES IN THE
HIGHER TERRAIN ARE EXPECTED BY FRIDAY MORNING. GRANGEVILLE...
OROFINO AND THE WHITEBIRD GRADE WILL BE AMONG THE AREAS IMPACTED
BY THIS SYSTEM. SOUTHWEST AND WEST WINDS OVER THE CAMAS PRAIRIE
WILL RESULT IN SOME LOCAL BLOWING SNOW IN THAT REGION...MAINLY
GRANGEVILLE. 

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

$$

MTZ001-051200-
/O.CON.KMSO.WS.A.0002.070106T0000Z-070107T0000Z/
KOOTENAI/CABINET REGION-
831 PM MST THU JAN 4 2007

...WINTER STORM WATCH REMAINS IN EFFECT FROM FRIDAY AFTERNOON
THROUGH SATURDAY AFTERNOON...

A WINTER STORM WATCH REMAINS IN EFFECT FROM FRIDAY AFTERNOON
THROUGH SATURDAY AFTERNOON. 

AN INTENSE WINTER WEATHER SYSTEM IS EXPECTED TO MOVE ACROSS THE
AREA LATE FRIDAY AFTERNOON THROUGH SATURDAY AFTERNOON. THIS
SYSTEM HAS THE POTENTIAL TO BRING VERY HEAVY SNOWFALL AMOUNTS OF
8 TO 16 INCHES WITH GUSTY SOUTHWESTERLY WINDS TO THE MOUNTAINS
AND LESSER AMOUNTS OF 6 TO 10 INCHES TO THE LOWER ELEVATIONS.

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

$$

MTZ002-051200-
/O.CON.KMSO.WS.A.0002.070106T0300Z-070107T0000Z/
WEST GLACIER REGION-
831 PM MST THU JAN 4 2007

...WINTER STORM WATCH REMAINS IN EFFECT FROM FRIDAY EVENING
THROUGH SATURDAY AFTERNOON...

A WINTER STORM WATCH REMAINS IN EFFECT FROM FRIDAY EVENING
THROUGH SATURDAY AFTERNOON. 

AN INTENSE WINTER WEATHER SYSTEM IS EXPECTED TO MOVE ACROSS THE
AREA FRIDAY EVENING THROUGH SATURDAY AFTERNOON. THIS SYSTEM HAS
THE POTENTIAL TO BRING VERY HEAVY SNOWFALL AMOUNTS OF 10 TO
20 INCHES WITH GUSTY SOUTHWESTERLY WINDS TO THE MOUNTAINS AND
LESSER AMOUNTS OF 6 TO 10 INCHES TO THE LOWER ELEVATIONS.

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

$$

MTZ043-051200-
/O.CON.KMSO.WS.A.0002.070106T0600Z-070107T0600Z/
POTOMAC/SEELEY LAKE REGION-
831 PM MST THU JAN 4 2007

...WINTER STORM WATCH REMAINS IN EFFECT FROM FRIDAY EVENING
THROUGH SATURDAY EVENING...

A WINTER STORM WATCH REMAINS IN EFFECT FROM FRIDAY EVENING
THROUGH SATURDAY EVENING. 

AN INTENSE WINTER WEATHER SYSTEM IS EXPECTED TO MOVE ACROSS THE
AREA FRIDAY EVENING THROUGH SATURDAY EVENING. THIS SYSTEM HAS THE
POTENTIAL TO BRING VERY HEAVY SNOWFALL AMOUNTS OF 10 TO 20 INCHES
WITH GUSTY SOUTHWESTERLY WINDS TO THE MOUNTAINS AND LESSER
AMOUNTS OF 6 TO 10 INCHES TO THE LOWER ELEVATIONS.

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

$$

MTZ007-051200-
/O.CON.KMSO.WS.A.0002.070106T0600Z-070107T0600Z/
BUTTE/BLACKFOOT REGION-
831 PM MST THU JAN 4 2007

...WINTER STORM WATCH REMAINS IN EFFECT FROM FRIDAY EVENING
THROUGH SATURDAY EVENING...

A WINTER STORM WATCH REMAINS IN EFFECT FROM FRIDAY EVENING
THROUGH SATURDAY EVENING. 

AN INTENSE WINTER WEATHER SYSTEM IS EXPECTED TO MOVE ACROSS THE
AREA FRIDAY EVENING THROUGH SATURDAY EVENING. THIS SYSTEM HAS THE
POTENTIAL TO BRING HEAVY SNOWFALL AMOUNTS OF 8 TO 14 INCHES WITH
GUSTY SOUTHWESTERLY WINDS TO THE MOUNTAINS AND LESSER AMOUNTS OF
3 TO 5 INCHES TO THE VALLEYS AND FOOTHILLS.

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

$$

IDZ009-010-051200-
/O.CON.KMSO.WS.A.0002.070106T1200Z-070107T1200Z/
WESTERN LEMHI COUNTY-EASTERN LEMHI COUNTY-
831 PM MST THU JAN 4 2007

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

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

AN INTENSE WINTER WEATHER SYSTEM IS EXPECTED TO MOVE ACROSS THE
AREA LATE FRIDAY NIGHT THROUGH SATURDAY NIGHT. THIS SYSTEM HAS
THE POTENTIAL TO BRING HEAVY SNOWFALL AMOUNTS OF 8 TO 14 INCHES
WITH GUSTY SOUTHWESTERLY WINDS TO THE MOUNTAINS AND LESSER
AMOUNTS OF 3 TO 5 INCHES TO THE LOWER ELEVATIONS.

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

$$

000 
WWUS45 KMSO 050813
WSWMSO

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE MISSOULA MT
113 AM MST FRI JAN 5 2007

.A STRONG FRONTAL SYSTEM WILL BRING HEAVY SNOWFALL AND WINDY
CONDITIONS ACROSS EXTREME NORTHWEST MONTANA THIS EVENING AND
GRADUALLY SPREAD SOUTHEAST THROUGH SATURDAY. WINDS WILL BEGIN TO
DIMINISH SATURDAY AFTERNOON. HOWEVER...THE SNOW WILL CONTINUE
ACROSS PORTIONS OF SOUTHWEST MONTANA AND EAST CENTRAL IDAHO INTO
SATURDAY NIGHT AS THE FRONT CONTINUES TO MOVE TO THE SOUTHEAST.
TRAVEL WILL BECOME HAZARDOUS AT TIMES...ESPECIALLY OVER MOUNTAIN
PASSES.

MTZ004-052200-
/O.CAN.KMSO.SN.Y.0003.000000T0000Z-070105T1500Z/
/O.CON.KMSO.WS.A.0002.070106T0000Z-070107T0000Z/
LOWER CLARK FORK REGION-
113 AM MST FRI JAN 5 2007

...SNOW ADVISORY IS CANCELLED...
...WINTER STORM WATCH REMAINS IN EFFECT FROM THIS AFTERNOON
THROUGH SATURDAY AFTERNOON...

THE NATIONAL WEATHER SERVICE IN MISSOULA HAS CANCELLED THE SNOW
ADVISORY. A WINTER STORM WATCH REMAINS IN EFFECT FROM THIS
AFTERNOON THROUGH SATURDAY AFTERNOON. 

SNOW HAS TAPERED TO SCATTERED MOUNTAIN SNOW SHOWERS ACROSS THE
AREA. THEREFORE THE THE SNOW ADVISORY HAS BEEN CANCELLED.

A STRONG WINTER WEATHER SYSTEM IS EXPECTED TO MOVE ACROSS THE
AREA LATE THIS AFTERNOON THROUGH SATURDAY AFTERNOON. THIS SYSTEM
HAS THE POTENTIAL TO BRING HEAVY SNOWFALL AMOUNTS OF 12 TO 24
INCHES WITH GUSTY SOUTHWEST WINDS TO THE MOUNTAINS AND 4 TO 8
INCHES TO THE LOWER ELEVATIONS.

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

$$

MTZ006-052200-
/O.CAN.KMSO.SN.Y.0003.000000T0000Z-070105T1500Z/
/O.CON.KMSO.WS.A.0002.070106T0600Z-070107T0600Z/
BITTERROOT/SAPPHIRE MOUNTAINS-
113 AM MST FRI JAN 5 2007

...SNOW ADVISORY IS CANCELLED...
...WINTER STORM WATCH REMAINS IN EFFECT FROM THIS EVENING THROUGH
SATURDAY EVENING...

THE NATIONAL WEATHER SERVICE IN MISSOULA HAS CANCELLED THE SNOW
ADVISORY. A WINTER STORM WATCH REMAINS IN EFFECT FROM THIS
EVENING THROUGH SATURDAY EVENING. 

SNOW HAS TAPERED TO SCATTERED MOUNTAIN SNOW SHOWERS ACROSS THE
AREA. THEREFORE THE THE SNOW ADVISORY HAS BEEN CANCELLED.

A STRONG WINTER WEATHER SYSTEM IS EXPECTED TO MOVE ACROSS THE
AREA LATE THIS AFTERNOON THROUGH SATURDAY AFTERNOON. THIS SYSTEM
HAS THE POTENTIAL TO BRING HEAVY SNOWFALL AMOUNTS OF 12 TO 24
INCHES WITH GUSTY SOUTHWEST WINDS TO THE MOUNTAINS AND 6 TO 12 INCHES
TO THE LOWER ELEVATIONS.

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

$$

IDZ005-006-052200-
/O.CAN.KMSO.SN.Y.0003.000000T0000Z-070105T1200Z/
/O.CON.KMSO.WS.A.0002.070106T0600Z-070107T0600Z/
NORTHERN CLEARWATER MOUNTAINS-SOUTHERN CLEARWATER MOUNTAINS-
1213 AM PST FRI JAN 5 2007

...SNOW ADVISORY IS CANCELLED...
...WINTER STORM WATCH REMAINS IN EFFECT FROM FRIDAY EVENING
THROUGH SATURDAY EVENING...

THE NATIONAL WEATHER SERVICE IN MISSOULA HAS CANCELLED THE SNOW
ADVISORY. A WINTER STORM WATCH REMAINS IN EFFECT FROM FRIDAY
EVENING THROUGH SATURDAY EVENING. 

SNOW HAS TAPERED TO SCATTERED MOUNTAIN SNOW SHOWERS ACROSS THE
AREA. THEREFORE THE THE SNOW ADVISORY HAS BEEN CANCELLED.

A STRONG WINTER WEATHER SYSTEM IS EXPECTED TO MOVE ACROSS THE
AREA LATE THIS AFTERNOON THROUGH SATURDAY AFTERNOON. THIS SYSTEM
HAS THE POTENTIAL TO BRING HEAVY SNOWFALL AMOUNTS OF 12 TO 24
INCHES WITH GUSTY SOUTHWEST WINDS TO THE MOUNTAINS AND 6 TO 12
INCHES TO THE LOWER ELEVATIONS.

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

$$

IDZ007-008-050915-
/O.CAN.KMSO.SN.Y.0003.000000T0000Z-070105T1200Z/
OROFINO/GRANGEVILLE REGION-LOWER HELLS CANYON/SALMON RIVER REGION-
1213 AM PST FRI JAN 5 2007

...SNOW ADVISORY IS CANCELLED...

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

SNOW HAS TAPERED TO SCATTERED LIGHT MOUNTAIN SNOW SHOWERS ACROSS
THE AREA. THEREFORE THE THE SNOW ADVISORY HAS BEEN CANCELLED.


$$

MTZ001-052200-
/O.CON.KMSO.WS.A.0002.070106T0000Z-070107T0000Z/
KOOTENAI/CABINET REGION-
113 AM MST FRI JAN 5 2007

...WINTER STORM WATCH REMAINS IN EFFECT FROM THIS AFTERNOON
THROUGH SATURDAY AFTERNOON...

A WINTER STORM WATCH REMAINS IN EFFECT FROM THIS AFTERNOON
THROUGH SATURDAY AFTERNOON. 

A STRONG WINTER WEATHER SYSTEM IS EXPECTED TO MOVE ACROSS THE
AREA LATE THIS AFTERNOON THROUGH SATURDAY AFTERNOON. THIS SYSTEM
HAS THE POTENTIAL TO BRING HEAVY SNOWFALL AMOUNTS OF 8 TO 16
INCHES WITH GUSTY SOUTHWEST WINDS TO THE MOUNTAINS AND 6 TO 10
INCHES TO THE LOWER ELEVATIONS.

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

$$

MTZ002-052200-
/O.CON.KMSO.WS.A.0002.070106T0300Z-070107T0000Z/
WEST GLACIER REGION-
113 AM MST FRI JAN 5 2007

...WINTER STORM WATCH REMAINS IN EFFECT FROM THIS EVENING THROUGH
SATURDAY AFTERNOON...

A WINTER STORM WATCH REMAINS IN EFFECT FROM THIS EVENING THROUGH
SATURDAY AFTERNOON. 

A STRONG WINTER WEATHER SYSTEM IS EXPECTED TO MOVE ACROSS THE
AREA THIS EVENING THROUGH SATURDAY AFTERNOON. THIS SYSTEM HAS
THE POTENTIAL TO BRING HEAVY SNOWFALL AMOUNTS OF 10 TO 20 INCHES
WITH GUSTY SOUTHWEST WINDS TO THE MOUNTAINS AND 6 TO 10 INCHES TO
THE LOWER ELEVATIONS.

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

$$

MTZ043-052200-
/O.CON.KMSO.WS.A.0002.070106T0600Z-070107T0600Z/
POTOMAC/SEELEY LAKE REGION-
113 AM MST FRI JAN 5 2007

...WINTER STORM WATCH REMAINS IN EFFECT FROM THIS EVENING THROUGH
SATURDAY EVENING...

A WINTER STORM WATCH REMAINS IN EFFECT FROM THIS EVENING THROUGH
SATURDAY EVENING. 

A STRONG WINTER WEATHER SYSTEM IS EXPECTED TO MOVE ACROSS THE
AREA THIS EVENING THROUGH SATURDAY EVENING. THIS SYSTEM HAS THE
POTENTIAL TO BRING HEAVY SNOWFALL AMOUNTS OF 10 TO 20 INCHES WITH
GUSTY SOUTHWEST WINDS TO THE MOUNTAINS AND 6 TO 10 INCHES TO THE
LOWER ELEVATIONS.

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

$$

MTZ007-052200-
/O.CON.KMSO.WS.A.0002.070106T0600Z-070107T0600Z/
BUTTE/BLACKFOOT REGION-
113 AM MST FRI JAN 5 2007

...WINTER STORM WATCH REMAINS IN EFFECT FROM THIS EVENING THROUGH
SATURDAY EVENING...

A WINTER STORM WATCH REMAINS IN EFFECT FROM THIS EVENING THROUGH
SATURDAY EVENING. 

A STRONG WINTER WEATHER SYSTEM IS EXPECTED TO MOVE ACROSS THE
AREA THIS EVENING THROUGH SATURDAY EVENING. THIS SYSTEM HAS THE
POTENTIAL TO BRING HEAVY SNOWFALL AMOUNTS OF 8 TO 14 INCHES WITH
GUSTY SOUTHWEST WINDS TO THE MOUNTAINS AND 3 TO 5 INCHES TO THE
VALLEYS AND FOOTHILLS.

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

$$

IDZ009-010-052200-
/O.CON.KMSO.WS.A.0002.070106T1200Z-070107T1200Z/
WESTERN LEMHI COUNTY-EASTERN LEMHI COUNTY-
113 AM MST FRI JAN 5 2007

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

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

A STRONG WINTER WEATHER SYSTEM IS EXPECTED TO MOVE ACROSS THE
AREA LATE TONIGHT THROUGH SATURDAY NIGHT. THIS SYSTEM HAS THE
POTENTIAL TO BRING HEAVY SNOWFALL AMOUNTS OF 8 TO 14 INCHES WITH
GUSTY SOUTHWEST WINDS TO THE MOUNTAINS AND 3 TO 5 INCHES TO THE
LOWER ELEVATIONS.

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

$$

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MISSOULA MT
853 AM MST THU JAN 4 2007

.DISCUSSION...A ZONE UPDATE WILL BE ISSUED SHORTLY TO RAISE HIGH
TEMPERATURES ACROSS THE AREA AND TO REDUCE CLOUD COVER. THE
DECREASING CLOUD COVER SHOULD ALLOW FOR SLIGHTLY BETTER SURFACE
HEATING...WHICH WILL ALLOW FOR TEMPERATURES TO RISE A FEW DEGREES
HIGHER THAN ORIGINALLY ANTICIPATED.

I WILL LIKELY BE ISSUING A HIGH WIND WATCH FOR THE CAMAS PRAIRIE FOR
FRIDAY NIGHT AND SATURDAY ALONG WITH WINTER STORM WATCHES FOR THE
MOUNTAINS LATER TODAY.

&&

.AVIATION...NO SIGNIFICANT WEATHER IMPACT TO AVIATION EXPECTED...SEE
APPROPRIATE TAFS AND TWEBS.

&&

.PREV DISCUSSION... /ISSUED 316 AM MST THU JAN 4 2007/

DISCUSSION...TODAY THROUGH SATURDAY...COLD AIR ALOFT CONTINUES TO
FILTER IN OVER NORTH CENTRAL IDAHO AND WESTERN MONTANA EARLY THIS
MORNING. THIS COLD AIR IS CREATING AN UNSTABLE AIRMASS WITH SCATTERED
SNOW SHOWERS THE RESULT. FORECAST MODELS NOW IN GOOD AGREEMENT
REGARDING THE EVOLUTION OF LARGE UPPER LEVEL TROUGH MOVING SOUTH
ALONG THE CALIFORNIA COAST AND THEN SOUTHEASTWARD TO THE FOUR
CORNERS AREA ON FRIDAY. BOTH THE 00Z GFS AND NAM12 ARE STRONGER
WITH LIFT ASSOCIATED WITH THE NORTHERN PORTION OF THIS TROUGH...
WHICH WILL IMPACT THE AREA TONIGHT AND EARLY FRIDAY MORNING.
INCREASED SNOW CHANCES AREAWIDE...ESPECIALLY IN HIGHER TERRAIN OF
NORTHERN IDAHO AND WEST- CENTRAL MONTANA WITH THE BEST LIFT
ASSOCIATED WITH THE JET STREAM NOSING OVER THIS AREA FROM THE
NORTHWEST.

A VERY BRIEF BREAK IN THE ACTION IS EXPECTED FRIDAY AFTERNOON. AS SURFACE
PRESSURES BEGIN TO FALL OVER WASHINGTON AHEAD OF THE NEXT PACIFIC
TROUGH AND ASSOCIATED STRONG JET STREAM CORE...A MOIST LOW LEVEL
SOUTHERLY FLOW WILL DEVELOP AND BRING A GOOD CHANCE FOR LIGHT
SNOWFALL TO NORTHWEST MONTANA BY FRIDAY EVENING. THE SURFACE
PRESSURE GRADIENT CONTINUES TO STRENGTHEN FRIDAY NIGHT WITH MOST
AREAS BECOMING BREEZY TO WINDY. THE POTENTIAL FOR VERY STRONG SOUTH
WINDS IN THE CAMAS PRAIRIE WILL HAVE TO BE CLOSELY MONITORED WITH
SUCH A STRONG SURFACE GRADIENT. MINOR CHANGES IN THE WINDS NEAR
MOUNTAIN TOP LEVEL MAY PRODUCE HIGH WIND WARNING CRITERIA FOR THIS
AREA FRIDAY NIGHT. WIDESPREAD SIGNIFICANT SNOW IN COMBINATION
WITH STRONG WINDS OVER NORTHERN IDAHO AND WESTERN MONTANA WILL BE
THE MAIN CONCERN WITH THIS SYSTEM. WHITEOUT CONDITIONS APPEAR
LIKELY FOR MOST MOUNTAIN PASSES WITH LOCAL VALLEY AREAS OF
NORTHWEST MONTANA SEEING SIMILAR CONDITIONS. BLIZZARD CONDITIONS
IN WEST TO EAST ORIENTED PASSES NOT OUT OF THE QUESTION ALONG THE
DIVIDE FRIDAY NIGHT INTO SATURDAY MORNING. AT THIS POINT...WITH STRONG
WESTERLY FLOW ALOFT...THE MISSOULA AND BITTERROOT VALLEYS WILL
MISS OUT OF THE ACTION...INITIALLY. STRONG LIFT ASSOCIATED WITH A MID-LEVEL
WAVE SHOULD OVERCOME ANY DOWNSLOPING EFFECTS ON SATURDAY WITH WHAT
SHOULD BE A NICE SNOW SQUALL MOVING FROM NORTHWEST TO SOUTHEAST
DURING THE DAY SATURDAY. SCATTERED TO NUMEROUS SNOW SHOWERS WILL
GRADUALLY DEVELOP BEHIND THE MAIN COLD FRONT SATURDAY NIGHT.

SATURDAY NIGHT THROUGH WEDNESDAY LOOK VERY ACTIVE WITH A ROLLER
COASTER OF TEMPERATURES THROUGH THE PERIOD...ENDING WITH AN ARCTIC
AIRMASS FOR VERY COLD READINGS POSSIBLE FOR THE MIDDLE OF NEXT
WEEK. SATURDAY NIGHT...THE REMNANTS OF A MOIST PACIFIC STORM
SYSTEM WILL BEGIN TO EXIT THE REGION. THIS WILL DECREASE WINDS AND
PRECIPITATION ACROSS THE AREA. A PROGRESSIVE WEST TO NORTHWEST
FLOW WILL KEEP MOISTURE AND UPPER LEVEL SYSTEMS MOVING ACROSS THE
INTERMOUNTAIN WEST...KEEPING THREAT OF SNOW SHOWERS THROUGH EARLY
MONDAY. MONDAY THROUGH TUESDAY...TEMPERATURES WILL WARM SLIGHTLY
AS A WARM PACIFIC SYSTEM MOVES INTO THE REGION. BEHIND THIS SYSTEM
A BIG CHANGE IS ANTICIPATED BY MID WEEK. A HIGH PRESSURE RIDGE OFF
THE COAST WILL AMPLIFY OVER THE GULF OF ALASKA SENDING AN ARCTIC
FRONT INTO THE REGION LATE TUESDAY INTO WEDNESDAY. THERE ARE SOME
TIMING DIFFERENCES IN THE LONG RANGE MODELS IN REGARD TO THE
PASSAGE OF THE ARCTIC FRONT...BUT COLD TEMPERATES AND HAZARDOUS
WINTER CONDITIONS LOOK POSSIBLE WITH THIS FRONT. STAY TUNED TO
LATTER FORECASTS FOR FURTHER DETAILS.

&&

.MSO WATCHES/WARNINGS/ADVISORIES...
MT...NONE.
ID...NONE.
&&

DISCUSSION...HENRY
PREVIOUS DISCUSSION....CHURCH
AVIATION...HENRY

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE MISSOULA MT
612 AM MST THU JAN 4 2007

IDZ005>008-MTZ001>006-043-042200-
NORTHERN CLEARWATER MOUNTAINS-SOUTHERN CLEARWATER MOUNTAINS-
OROFINO/GRANGEVILLE REGION-LOWER HELLS CANYON/SALMON RIVER REGION-
KOOTENAI/CABINET REGION-WEST GLACIER REGION-
FLATHEAD/MISSION VALLEYS-LOWER CLARK FORK REGION-
MISSOULA/BITTERROOT VALLEYS-BITTERROOT/SAPPHIRE MOUNTAINS-
POTOMAC/SEELEY LAKE REGION-
612 AM MST THU JAN 4 2007 /512 AM PST THU JAN 4 2007/

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

.DAY ONE...TODAY AND TONIGHT

SCATTERED SNOW SHOWERS ARE EXPECTED TODAY BUT SIGNIFICANT
ACCUMULATIONS ARE NOT ANTICIPATED.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

A POTENT PACIFIC STORM SYSTEM WILL MOVE THROUGH NORTHERN IDAHO AND
WESTERN MONTANA FRIDAY NIGHT AND SATURDAY. THIS SYSTEM IS EXPECTED
TO BRING HEAVY MOUNTAIN SNOW ALONG WITH STRONG AND GUSTY WINDS.
WHITEOUT CONDITIONS OVER MANY MOUNTAINS PASSES IS LIKELY WITH THIS
SYSTEM ALONG WITH LOCAL BLIZZARD CONDITIONS EXPECTED THROUGH WEST TO
EAST ORIENTED PASSES AND CANYONS.

ANOTHER MAJOR WINTER STORM IS EXPECTED FOR MID-WEEK NEXT WEEK.
THIS STORM HAS THE POTENTIAL TO BRING WIDESPREAD SIGNIFICANT
SNOWFALL...WIND...AND VERY COLD TEMPERATURES TO ALL OF WESTERN
MONTANA AND PORTIONS OF NORTH CENTRAL IDAHO. THE TIMING OF THIS
SYSTEM IS STILL UNCERTAIN SO KEEP ABREAST OF THE LATEST FORECASTS
REGARDING THIS VIGOROUS STORM.

TRAVELERS SHOULD BE PREPARED FOR WINTER DRIVING CONDITIONS
ESPECIALLY OVER MOUNTAIN PASSES.

.SPOTTER INFORMATION STATEMENT...

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