Wind Advisory 23, NWS Missoula, MT

000 
WWUS75 KMSO 160837
NPWMSO

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE MISSOULA MT
137 AM MST THU NOV 16 2006

IDZ008-161300-
/O.UPG.KMSO.WI.Y.0023.000000T0000Z-061116T1300Z/
/O.NEW.KMSO.HW.W.0008.061116T0837Z-061116T1300Z/
LOWER HELLS CANYON/SALMON RIVER REGION-
1237 AM PST THU NOV 16 2006

...HIGH WIND WARNING IN EFFECT UNTIL 5 AM PST EARLY THIS
MORNING ALONG US HIGHWAY 95...
...WIND ADVISORY NO LONGER IN EFFECT...

THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A HIGH WIND
WARNING...WHICH IS IN EFFECT UNTIL 5 AM PST EARLY THIS MORNING.
THE WIND ADVISORY IS NO LONGER IN EFFECT. 

SUSTAINED SOUTH WINDS 25 TO 35 MPH WITH LOCAL GUSTS UP TO 65 MPH
HAVE DEVELOPED ALONG THE US HIGHWAY 95 CORRIDOR. THESE CONDITIONS
ARE EXPECTED CONTINUE INTO EARLY THURSDAY MORNING AS STRONG LOW
PRESSURE SYSTEM MOVES THROUGH NORTH CENTRAL IDAHO.

WINDS THIS STRONG CAN MAKE DRIVING VERY DIFFICULT... ESPECIALLY
FOR HIGH PROFILE VEHICLES. ALSO...DAMAGE TO PROPERTY IS PROBABLE
WITH WIND SPEEDS THIS HIGH.


$$

IDZ007-161300-
/O.CON.KMSO.WI.Y.0023.000000T0000Z-061116T1300Z/
OROFINO/GRANGEVILLE REGION-
1237 AM PST THU NOV 16 2006

...WIND ADVISORY REMAINS IN EFFECT UNTIL 5 AM PST EARLY THIS
MORNING...

SUSTAINED SOUTH WINDS 25 TO 35 MPH WITH LOCAL GUSTS UP TO 45 MPH
HAVE DEVELOPED ON THE CAMAS PRAIRIE. THESE CONDITIONS ARE EXPECTED
CONTINUE INTO EARLY THURSDAY MORNING AS STRONG LOW PRESSURE SYSTEM
MOVES THROUGH NORTH CENTRAL IDAHO.

WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT... ESPECIALLY FOR
HIGH PROFILE VEHICLES. USE EXTRA CAUTION.

$$


HENRY

000 
WWUS75 KMSO 161201
NPWMSO

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE MISSOULA MT
501 AM MST THU NOV 16 2006


IDZ008-161315-
/O.CAN.KMSO.HW.W.0008.000000T0000Z-061116T1300Z/
LOWER HELLS CANYON/SALMON RIVER REGION-
401 AM PST THU NOV 16 2006

...HIGH WIND WARNING IS CANCELLED ALONG THE US HIGHWAY 95 CORRIDOR...

THE NATIONAL WEATHER SERVICE IN MISSOULA HAS CANCELLED THE HIGH
WIND WARNING. PRESSURE GRADIENTS OVER THE AREA HAVE WEAKENED AND
HAVE ALLOWED FOR THE WINDS TO DIMINISH.

$$

IDZ007-161315-
/O.CAN.KMSO.WI.Y.0023.000000T0000Z-061116T1300Z/
OROFINO/GRANGEVILLE REGION-
401 AM PST THU NOV 16 2006

...WIND ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN MISSOULA HAS CANCELLED THE WIND
ADVISORY. PRESSURE GRADIENTS ACROSS THE CAMAS PRAIRIE HAVE
WEAKENED AND HAVE ALLOWED FOR THE WINDS TO DIMINISH.

$$

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MISSOULA MT
945 PM MST WED NOV 15 2006

.UPDATE...POCKETS OF FREEZING RAIN THROUGH MIDNIGHT ARE POSSIBLE ALONG
THE I-90 CORRIDOR FROM BONNER TO CLINTON AND HIGHWAY 83 FROM
CLEARWATER JUNCTION TO SEELEY LAKE. TEMPERATURES ALONG THESE
CORRIDORS ARE BELOW FREEZING. APPROACHING RAIN IN COMBINATION
WITH THESE FREEZING TEMPERATURES COULD PRODUCE POCKETS OF FREEZING
RAIN THROUGH MIDNIGHT. HAVE MADE UPDATES IN THE ZONES TO REFLECT
THIS.

&&

AVIATION...CLOUD BASES WILL CONTINUE TO LOWER ACROSS THE NORTHERN
IDAHO PANHANDLE AND NORTHWEST MONTANA THIS EVENING AS A SYSTEM
MOVE OVER THE NORTHERN ROCKIES. HIGHER MOUNTAINS ALONG THE
BITTERROOT DIVIDE HAVE ALREADY BECOME OBSCURED...WITH MOUNTAINS
FARTHER EAST FOLLOWING SUIT DURING THE EVENING HOURS. WESTERLY
WINDS HAVE INCREASED TO AROUND 50KTS AT 10K FEET MSL...AND WILL
SUSTAIN THESE SPEEDS THROUGH THE NIGHT. PLEASE SEE APPROPRIATE
TAFS AND TWEBS.

&&

.PREV DISCUSSION... /ISSUED 714 PM MST WED NOV 15 2006/

UPDATE...MONTANA ROAD REPORTS HAVE REPORTED ISOLATED AREAS OF ICY
ROAD CONDITIONS. THESE CONDITIONS ARE NOT EXPECTED TO BE
WIDESPREAD AS MANY AREAS IN NORTHWEST MONTANA REPORT TEMPERATURES
SLIGHTLY ABOVE FREEZING.RAINFALL IN AREAS WHERE WHERE
TEMPERATURES ARE AT FREEZING OR BELOW WILL COMBINE FOR POSSIBLE
FREEZING RAIN CONDITIONS THIS EVENING. WILL UPDATED THE ZONES TO
REFLECT THIS.WINDS HAVE PICKED UP IN GRANGEVILLE. WILL ADD A WIND
ADVISORY TO THE CAMAS PRAIRIE.

PREV DISCUSSION... /ISSUED 222 PM MST WED NOV 15 2006/

DISCUSSION...TONIGHT THROUGH FRIDAY...WARM ADVECTION PATTERN
STILL ON TRACK WITH LIGHT PRECIPITATION AND RISING SNOW LEVELS
ALREADY MOVING INTO WESTERN IDAHO. SNOW ACCUMULATIONS WILL BE
CONFINED PRIMARILY TO THE HIGHER TERRAIN...PREDOMINANTLY ABOVE
MAIN PASS LEVEL. THEREFORE...DO NOT ANTICIPATE ANY HEAVY SNOW
HIGHLIGHTS. THE DEVELOPING SURFACE PRESSURE GRADIENT HAS CAUSED
QUITE A BIT OF WIND IN THE MOUNTAINS...HIGHER VALLEYS...AND THE
LOWER SNAKE/SALMON RIVER CANYONS TODAY. WINDS ARE TRYING TO GET
GOING IN THE GRANGEVILLE AREA...BUT THUS FAR THE PRESSURE GRADIENT
HAS BEEN ORIENTED SOUTHEAST RATHER THAN SOUTH...A MORE FAVORABLE
DIRECTION FOR THE CAMAS PRAIRIE. GRADIENT LOOKS BETTER RIGHT AHEAD
OF THE FRONT LATE THIS EVENING...BUT THE WINDOW OF STRONG WINDS
FOR GRANGEVILLE SHOULD BE BRIEF AND MAY BE MARGINAL FOR ADVISORY
SPEEDS. WILL THUS RESTRICT THE ADVISORY TO LOWER SNAKE/SALMON
RIVER CANYONS THROUGH THE NIGHT.

COLD FRONT WILL MOVE ACROSS NORTHERN IDAHO AND NORTHWEST MONTANA
LATE TONIGHT...THEN WESTERN MONTANA EARLY THURSDAY. THIS WILL
HELP MIX WINDS DOWN TO THE LOWER VALLEYS OF MONTANA...AND PRODUCE
A GENERALLY BREEZY DAY THURSDAY. THE AIR MASS WILL DRY FAIRLY
RAPIDLY BEHIND THE FRONT...AND REMAIN SO THROUGH FRIDAY. THIS WILL
ALLOW BETTER NIGHTTIME RADIATIONAL COOLING THURSDAY NIGHT...MAKING
COOLER OVERNIGHT TEMPERATURES AND VALLEY FOG A GOOD BET.

A DRY WESTERLY FLOW SHOULD DOMINATE FRIDAY THROUGH
SATURDAY...LEADING TO INCREASING VALLEY INVERSIONS AND POSSIBLY
SOME VALLEY FOG DEVELOPMENT. THE OFFSHORE WEATHER SYSTEM MAY BEGIN
TO PUSH ADDITIONAL MOISTURE AND WEATHER DISTURBANCES ACROSS
NORTH CENTRAL IDAHO AND WESTERN MONTANA LATE SUNDAY INTO EARLY NEXT
WEEK. INITIALLY...THIS INCREASINGLY MOIST PATTERN WILL RESULT IN
QUITE HIGH SNOW LEVELS. THE GFS MODEL IS GENERALLY
FOLLOWED.

&&

.MSO WATCHES/WARNINGS/ADVISORIES...
MT...NONE.
ID...WIND ADVISORY UNTIL 10 PM PST THIS EVENING FOR LOWER HELLS
     CANYON/SALMON RIVER REGION-OROFINO/GRANGEVILLE REGION.

&&

SHORT TERM...RPN
LONG TERM....WHITMORE/BAUCK
AVIATION...RPN

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE MISSOULA MT
407 PM MST WED NOV 15 2006

IDZ008-161200-
LOWER HELLS CANYON/SALMON RIVER REGION-
307 PM PST WED NOV 15 2006

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

THE FOLLOWING WATCHES WARNINGS OR ADVISORIES ARE CURRENTLY IN EFFECT
   WIND ADVISORY IN EFFECT UNTIL 10 PM PST THIS EVENING.

PLEASE SEE THE FOLLOWING PRODUCTS FOR MORE INFORMATION.
   GTFNPWMSO  /WWUS75 KMSO/

.DAY ONE...TONIGHT

ANOTHER PACIFIC FRONTAL SYSTEM WITH MUCH WARMER AIR WILL INTO THE
REGION THIS EVENING. SOUTHERLY WINDS WILL BE INCREASING TO 20 TO 30 MPH
SUSTAINED WITH GUSTS NEAR 50 MPH IN THE LOWER SALMON AND SNAKE
RIVER CANYONS LATER TODAY AND TONIGHT. PLEASE REFER TO GTFNPWMSO
FOR FURTHER INFORMATION.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

THE PACIFIC FRONTAL SYSTEM WILL EXIT TO THE SOUTH AND EAST
THURSDAY WITH A SHORT PERIOD OF SNOW SHOWERS.

.SPOTTER INFORMATION STATEMENT...

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

IDZ005>007-009-010-MTZ001>007-043-161200-
NORTHERN CLEARWATER MOUNTAINS-SOUTHERN CLEARWATER MOUNTAINS-
OROFINO/GRANGEVILLE REGION-WESTERN LEMHI COUNTY-
EASTERN LEMHI COUNTY-KOOTENAI/CABINET REGION-WEST GLACIER REGION-
FLATHEAD/MISSION VALLEYS-LOWER CLARK FORK REGION-
MISSOULA/BITTERROOT VALLEYS-BITTERROOT/SAPPHIRE MOUNTAINS-
BUTTE/BLACKFOOT REGION-POTOMAC/SEELEY LAKE REGION-
407 PM MST WED NOV 15 2006 /307 PM PST WED NOV 15 2006/

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

.DAY ONE...TONIGHT

ANOTHER PACIFIC FRONTAL SYSTEM WITH MUCH WARMER AIR WILL MOVE
THROUGH THE REGION TONIGHT. SNOW LEVELS WILL RISE CONSIDERABLY...
BUT POCKETS OF COLD AIR IN THE VALLEYS COULD PRODUCE A MIX OF
PRECIPITATION TYPES TONIGHT.

SOUTHERLY WINDS WILL BE INCREASING TO 20 TO 30 MPH PARTICULARLY IN
THE MOUNTAINS AND HIGHER VALLEYS TONIGHT.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

THE PACIFIC FRONTAL SYSTEM WILL EXIT TO THE SOUTH AND EAST
THURSDAY WITH A PERIOD OF SNOW SHOWERS AND LOCAL ACCUMULATIONS.

.SPOTTER INFORMATION STATEMENT...

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