Winter Storm Warning 14, NWS Spokane, WA

000 
WWUS46 KOTX 130601
WSWOTX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SPOKANE WA
1001 PM PST TUE DEC 12 2006

WAZ037-131415-
/O.CON.KOTX.WS.W.0014.061213T1200Z-061214T0300Z/
NORTHEAST MOUNTAINS-
INCLUDING THE CITIES OF...COLVILLE...DEER PARK...CHEWELAH...
NEWPORT...KETTLE FALLS
1001 PM PST TUE DEC 12 2006

...WINTER STORM WARNING REMAINS IN EFFECT FROM 4 AM TO 7 PM PST
WEDNESDAY ABOVE 3000 FEET...

A WINTER STORM WARNING ABOVE 3000 FEET REMAINS IN EFFECT FROM
4 AM TO 7 PM PST WEDNESDAY. 

SNOW ACCUMULATIONS OF 8 TO 12 INCHES ARE LIKELY BY WEDNESDAY
EVENING ABOVE 4000 FEET. FLUCTUATING SNOW LEVELS WILL LIKELY CUT
DOWN ON ACCUMULATIONS BELOW 3000 FEET. IN ADDITION TO THE HEAVY
SNOW IN THE MOUNTAINS...BRISK SOUTHWEST WINDS GUSTING UP TO
35 MPH WILL PRODUCE AREAS OF BLOWING AND DRIFTING SNOW...
ESPECIALLY ALONG THE RIDGE TOPS.

SNOW LEVELS WILL INITIALLY BE AROUND 2500 FEET EARLY WEDNESDAY
MORNING...BEFORE JUMPING TO 4000 FEET BY MID DAY. SNOW ACCUMULATIONS
ARE NOT EXPECTED IN THE VALLEYS...HOWEVER IN THE VALLEYS PRECIPITATION
MAY BEGIN AS FREEZING RAIN TONIGHT BEFORE CHANGING OVER TO ALL
RAIN AFTER SUNRISE WEDNESDAY.

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

$$

IDZ001-004-131415-
/O.CON.KOTX.WS.W.0014.061213T1500Z-061214T0600Z/
NORTHERN PANHANDLE-CENTRAL PANHANDLE MOUNTAINS-
INCLUDING THE CITIES OF...SANDPOINT...RATHDRUM...BONNERS FERRY...
PRIEST RIVER...ST. MARIES...KELLOGG...PINEHURST...OSBURN...
WALLACE...MULLAN
1001 PM PST TUE DEC 12 2006

...WINTER STORM WARNING REMAINS IN EFFECT FROM 7 AM TO 10 PM PST
WEDNESDAY ABOVE 4000 FEET...

A WINTER STORM WARNING ABOVE 4000 FEET REMAINS IN EFFECT FROM
7 AM TO 10 PM PST WEDNESDAY. 

SNOW ACCUMULATIONS OF 6 TO 10 INCHES ARE LIKELY WEDNESDAY AND
WEDNESDAY EVENING ABOVE 4000 FEET. THE HEAVIEST SNOW WILL FALL
WEDNESDAY AFTERNOON AND EVENING AS SNOW LEVELS FALL BEHIND A COLD
FRONT. SNOW ACCUMULATIONS IN THE SANDPOINT AND BONNERS FERRY AREA
ARE EXPECTED TO BE LESS THAN 2 INCHES...SINCE SNOW LEVELS WILL
LIKELY REMAIN ABOVE 2500 FEET THROUGH MUCH OF THE EVENT. IN
ADDITION...POCKETS OF FREEZING RAIN MAY DEVELOP OVERNIGHT IN THE
LOWER VALLEYS...BUT WILL CHANGE OVER TO RAIN OR WET SNOW AFTER
SUNRISE WEDNESDAY MORNING.

FOR THE PASSES OF INTERSTATE 90...PRECIPITATION WILL LIKELY BE A
MIX OF RAIN AND SNOW THROUGH MID AFTERNOON ON WEDNESDAY. THE MOST
SIGNIFICANT ACCUMULATIONS FOR LOOKOUT PASS WILL OCCUR LATE IN THE
DAY WEDNESDAY THROUGH WEDNESDAY NIGHT. IN ADDITION TO THE HEAVY
SNOW IN THE MOUNTAINS...BRISK SOUTHWEST WINDS GUSTING UP TO
35 MPH WILL PRODUCE AREAS OF BLOWING AND DRIFTING SNOW...
ESPECIALLY ALONG THE RIDGE TOPS.

ELEVATIONS ABOVE 5000 FEET WILL LIKELY BE SNOW THROUGH MOST OF
THE EVENT. EXPECT 12 TO 18 INCHES OF SNOW IN THESE HIGH
ELEVATIONS BY WEDNESDAY EVENING.

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

$$

WAZ042-131415-
/O.CON.KOTX.SN.Y.0028.061213T0900Z-061214T0000Z/
EAST SLOPES NORTHERN CASCADES-
INCLUDING THE CITIES OF...LEAVENWORTH...MAZAMA...TWISP...WINTHROP
1001 PM PST TUE DEC 12 2006

...SNOW ADVISORY REMAINS IN EFFECT FROM 1 AM TO 4 PM PST
WEDNESDAY...

A SNOW ADVISORY REMAINS IN EFFECT FROM 1 AM TO 4 PM PST
WEDNESDAY. 

SNOW IS EXPECTED TO BEGIN AROUND MIDNIGHT TONIGHT OVER THE EAST
SLOPES OF THE NORTHERN CASCADES. THE MOST SIGNIFICANT SNOW WILL
OCCUR DURING THE EARLY MORNING HOURS ON WEDNESDAY IN THE
COMMUNITIES OF MAZAMA...TWISP...WINTRHOP...AND LEAVENWORTH. SNOW
AMOUNTS OF 3 TO 6 INCHES ARE POSSIBLE BY MID MORNING.
ACCUMULATING SNOW IS EXPECTED TO END BY 10 AM.

SNOW ACCUMULATIONS OF 10 TO 16 INCHES ARE LIKELY BY LATE
WEDNESDAY AFTERNOON IN THE MOUNTAINS NEAR THE CASCADE CREST. THE
HEAVIEST SNOW WILL FALL WEDNESDAY MORNING. WIND GUSTS TO 30 MPH
NEAR THE MOUNTAIN RIDGES WILL CONTRIBUTE TO BLOWING AND DRIFTING.

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.

$$

WAZ043-131415-
/O.CON.KOTX.SN.Y.0028.061213T0900Z-061213T1800Z/
OKANOGAN VALLEY-
INCLUDING THE CITIES OF...OMAK...OKANOGAN...BREWSTER...
BRIDGEPORT...OROVILLE
1001 PM PST TUE DEC 12 2006

...SNOW ADVISORY REMAINS IN EFFECT FROM 1 AM TO 10 AM PST
WEDNESDAY ABOVE 2000 FEET...

A SNOW ADVISORY ABOVE 2000 FEET REMAINS IN EFFECT FROM 1 AM TO
10 AM PST WEDNESDAY. 

SNOW WILL DEVELOP SHORTLY AFTER MIDNIGHT AND CONTINUE THROUGH MID
MORNING ON WEDNESDAY. SNOW AMOUNTS OF 2 TO 3 INCHES CAN BE
EXPECTED LATE TONIGHT AND WEDNESDAY MORNING FOR ELEVATIONS ABOVE
2000 FEET. BELOW 2000 FEET...A MIXTURE OF RAIN AND WET SNOW WILL
CONTRIBUTE TO MINOR SLUSHY ACCUMULATIONS.

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 
WWUS46 KOTX 130922
WSWOTX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SPOKANE WA
122 AM PST WED DEC 13 2006

WAZ037-131730-
/O.CON.KOTX.WS.W.0014.061213T1200Z-061214T0300Z/
NORTHEAST MOUNTAINS-
INCLUDING THE CITIES OF...COLVILLE...DEER PARK...CHEWELAH...
NEWPORT...KETTLE FALLS
122 AM PST WED DEC 13 2006

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 PM PST THIS
EVENING ABOVE 3000 FEET...

A WINTER STORM WARNING ABOVE 3000 FEET REMAINS IN EFFECT UNTIL
7 PM PST THIS EVENING. 

SNOW ACCUMULATIONS OF 8 TO 12 INCHES ARE LIKELY BY THIS EVENING
ABOVE 4000 FEET. FLUCTUATING SNOW LEVELS WILL LIKELY CUT DOWN ON
ACCUMULATIONS BELOW 3000 FEET. IN ADDITION TO THE HEAVY SNOW IN
THE MOUNTAINS...BRISK SOUTHWEST WINDS GUSTING UP TO 35 MPH WILL
PRODUCE AREAS OF BLOWING AND DRIFTING SNOW... ESPECIALLY ALONG THE
RIDGE TOPS.

SNOW LEVELS WILL INITIALLY BE AROUND 2500 FEET EARLY THISMORNING...
BEFORE JUMPING TO 4000 FEET BY MID DAY. SNOW ACCUMULATIONS ARE NOT
EXPECTED IN THE VALLEYS...HOWEVER IN THE VALLEYS PRECIPITATION MAY
BEGIN AS FREEZING RAIN EARLY THIS MORNING BEFORE CHANGING OVER TO
ALL RAIN AFTER SUNRISE THIS MORNING.

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

$$

IDZ001-004-131730-
/O.CON.KOTX.WS.W.0014.061213T1500Z-061214T0600Z/
NORTHERN PANHANDLE-CENTRAL PANHANDLE MOUNTAINS-
INCLUDING THE CITIES OF...SANDPOINT...RATHDRUM...BONNERS FERRY...
PRIEST RIVER...ST. MARIES...KELLOGG...PINEHURST...OSBURN...
WALLACE...MULLAN
122 AM PST WED DEC 13 2006

...WINTER STORM WARNING REMAINS IN EFFECT FROM 7 AM THIS MORNING
TO 10 PM PST THIS EVENING ABOVE 4000 FEET...

A WINTER STORM WARNING ABOVE 4000 FEET REMAINS IN EFFECT FROM
7 AM THIS MORNING TO 10 PM PST THIS EVENING. 

SNOW ACCUMULATIONS OF 6 TO 10 INCHES ARE LIKELY TODAY AND
THIS EVENING ABOVE 4000 FEET. THE HEAVIEST SNOW WILL FALL
THIS AFTERNOON AND EVENING AS SNOW LEVELS FALL BEHIND A COLD
FRONT. SNOW ACCUMULATIONS IN THE SANDPOINT AND BONNERS FERRY AREA
ARE EXPECTED TO BE LESS THAN 2 INCHES...SINCE SNOW LEVELS WILL
LIKELY REMAIN ABOVE 2500 FEET THROUGH MUCH OF THE EVENT. IN
ADDITION...POCKETS OF FREEZING RAIN MAY DEVELOP EARLY THIS MORNINGIN
THE LOWER VALLEYS...BUT WILL CHANGE OVER TO RAIN OR WET SNOW AFTER
SUNRISE WEDNESDAY MORNING.

FOR THE PASSES OF INTERSTATE 90...PRECIPITATION WILL LIKELY BE A
MIX OF RAIN AND SNOW THROUGH MID AFTERNOON. THE MOST SIGNIFICANT
ACCUMULATIONS FOR LOOKOUT PASS WILL OCCUR LATE TODAY THROUGH
TONIGHT. IN ADDITION TO THE HEAVY SNOW IN THE MOUNTAINS...BRISK
SOUTHWEST WINDS GUSTING UP TO 35 MPH WILL PRODUCE AREAS OF BLOWING
AND DRIFTING SNOW... ESPECIALLY ALONG THE RIDGE TOPS.

ELEVATIONS ABOVE 5000 FEET WILL LIKELY BE SNOW THROUGH MOST OF
THE EVENT. EXPECT 12 TO 18 INCHES OF SNOW IN THESE HIGH
ELEVATIONS BY THIS EVENING.

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

$$

WAZ044-131500-
/O.EXB.KOTX.SN.Y.0028.000000T0000Z-061213T1500Z/
WATERVILLE PLATEAU-
INCLUDING THE CITIES OF...WATERVILLE...MANSFIELD
122 AM PST WED DEC 13 2006

...SNOW ADVISORY IN EFFECT UNTIL 7 AM PST THIS MORNING ABOVE
2000 FEET...

THE NATIONAL WEATHER SERVICE IN SPOKANE HAS ISSUED A SNOW
ADVISORY ABOVE 2000 FEET...WHICH IS IN EFFECT UNTIL 7 AM PST THIS
MORNING. 

SNOW HAS DEVELOPED OVER THE WATERVILLE PLATEAU EARLY THIS
MORNING AND WILL CONTINUE THROUGH EARLY MORNING. SNOW AMOUNTS OF
2 TO 3 INCHES CAN BE EXPECTED BY EARLY THIS MORNING FOR
ELEVATIONS ABOVE 2000 FEET. BELOW 2000 FEET...A MIXTURE OF RAIN
AND WET SNOW WILL CONTRIBUTE TO MINOR SLUSHY ACCUMULATIONS.

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.

$$

WAZ042-131730-
/O.CON.KOTX.SN.Y.0028.000000T0000Z-061214T0000Z/
EAST SLOPES NORTHERN CASCADES-
INCLUDING THE CITIES OF...LEAVENWORTH...MAZAMA...TWISP...WINTHROP
122 AM PST WED DEC 13 2006

...SNOW ADVISORY REMAINS IN EFFECT UNTIL 4 PM PST THIS
AFTERNOON...

A SNOW ADVISORY REMAINS IN EFFECT UNTIL 4 PM PST THIS AFTERNOON. 

SNOW WILL CONTINUE THIS MORNING OVER THE EAST SLOPES OF THE
NORTHERN CASCADES. THE MOST SIGNIFICANT SNOW WILL OCCUR DURING THE
EARLY MORNING HOURS TODAY IN THE COMMUNITIES OF MAZAMA...TWISP...WINTRHOP
...AND LEAVENWORTH. SNOW AMOUNTS OF 3 TO 6 INCHES ARE POSSIBLE BY
MID MORNING. ACCUMULATING SNOW IS EXPECTED TO END BY 10 AM.

SNOW ACCUMULATIONS OF 10 TO 16 INCHES ARE LIKELY BY LATE
THIS AFTERNOON IN THE MOUNTAINS NEAR THE CASCADE CREST. THE
HEAVIEST SNOW WILL FALL THIS MORNING. WIND GUSTS TO 30 MPH NEAR
THE MOUNTAIN RIDGES WILL CONTRIBUTE TO BLOWING AND DRIFTING.

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.

$$

WAZ043-131730-
/O.CON.KOTX.SN.Y.0028.000000T0000Z-061213T1800Z/
OKANOGAN VALLEY-
INCLUDING THE CITIES OF...OMAK...OKANOGAN...BREWSTER...
BRIDGEPORT...OROVILLE
122 AM PST WED DEC 13 2006

...SNOW ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST THIS MORNING
ABOVE 2000 FEET...

A SNOW ADVISORY ABOVE 2000 FEET REMAINS IN EFFECT UNTIL 10 AM PST
THIS MORNING. 

SNOW WILL CONTINUE TO FALL THROUGH MID MORNING TODAY. SNOW
AMOUNTS OF 2 TO 3 INCHES CAN BE EXPECTED BY THIS MORNING FOR
ELEVATIONS ABOVE 2000 FEET. BELOW 2000 FEET...A MIXTURE OF RAIN
AND WET SNOW WILL CONTRIBUTE TO MINOR SLUSHY ACCUMULATIONS.

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 
WWUS46 KOTX 131456
WSWOTX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SPOKANE WA
656 AM PST WED DEC 13 2006

WAZ044-131600-
/O.CAN.KOTX.SN.Y.0028.000000T0000Z-061213T1500Z/
WATERVILLE PLATEAU-
INCLUDING THE CITIES OF...WATERVILLE...MANSFIELD
656 AM PST WED DEC 13 2006

...SNOW ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN SPOKANE HAS CANCELLED THE SNOW
ADVISORY. ADDITIONAL LIGHT SNOW WILL LIONGER OVER THE WATERVILLE
PLATEAU EARLY THIS MORNING...HOWEVER ADDITIONAL ACCUMULATIONS
SHOULD LIGHT.

$$

WAZ037-132300-
/O.CON.KOTX.WS.W.0014.000000T0000Z-061214T0300Z/
NORTHEAST MOUNTAINS-
INCLUDING THE CITIES OF...COLVILLE...DEER PARK...CHEWELAH...
NEWPORT...KETTLE FALLS
656 AM PST WED DEC 13 2006

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 PM PST THIS
EVENING ABOVE 3000 FEET...

A WINTER STORM WARNING ABOVE 3000 FEET REMAINS IN EFFECT UNTIL
7 PM PST THIS EVENING. 

SNOW ACCUMULATIONS OF 8 TO 12 INCHES ARE LIKELY BY THIS EVENING
ABOVE 4000 FEET. FLUCTUATING SNOW LEVELS WILL LIKELY CUT DOWN ON
ACCUMULATIONS BELOW 3000 FEET. IN ADDITION TO THE HEAVY SNOW IN
THE MOUNTAINS...BRISK SOUTHWEST WINDS GUSTING UP TO 35 MPH WILL
PRODUCE AREAS OF BLOWING AND DRIFTING SNOW... ESPECIALLY ALONG
THE RIDGE TOPS.

SNOW LEVELS WILL INITIALLY BE AROUND 2500 FEET EARLY
THISMORNING... BEFORE JUMPING TO 4000 FEET BY MID DAY. SNOW
ACCUMULATIONS ARE NOT EXPECTED IN THE VALLEYS...HOWEVER IN THE
VALLEYS PRECIPITATION MAY BEGIN AS FREEZING RAIN EARLY THIS
MORNING BEFORE CHANGING OVER TO ALL RAIN AFTER SUNRISE THIS
MORNING.

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

$$

IDZ001-004-132300-
/O.CON.KOTX.WS.W.0014.061213T1500Z-061214T0600Z/
NORTHERN PANHANDLE-CENTRAL PANHANDLE MOUNTAINS-
INCLUDING THE CITIES OF...SANDPOINT...RATHDRUM...BONNERS FERRY...
PRIEST RIVER...ST. MARIES...KELLOGG...PINEHURST...OSBURN...
WALLACE...MULLAN
656 AM PST WED DEC 13 2006

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 PM PST THIS
EVENING ABOVE 4000 FEET...

A WINTER STORM WARNING ABOVE 4000 FEET REMAINS IN EFFECT UNTIL
10 PM PST THIS EVENING. 

SNOW ACCUMULATIONS OF 6 TO 10 INCHES ARE LIKELY TODAY AND THIS
EVENING ABOVE 4000 FEET. THE HEAVIEST SNOW WILL FALL THIS
AFTERNOON AND EVENING AS SNOW LEVELS FALL BEHIND A COLD FRONT.
SNOW ACCUMULATIONS IN THE SANDPOINT AND BONNERS FERRY AREA ARE
EXPECTED TO BE LESS THAN 2 INCHES...SINCE SNOW LEVELS WILL LIKELY
REMAIN ABOVE 2500 FEET THROUGH MUCH OF THE EVENT. IN ADDITION...
POCKETS OF FREEZING RAIN MAY DEVELOP EARLY THIS MORNINGIN THE
LOWER VALLEYS...BUT WILL CHANGE OVER TO RAIN OR WET SNOW AFTER
SUNRISE WEDNESDAY MORNING.

FOR THE PASSES OF INTERSTATE 90...PRECIPITATION WILL LIKELY BE A
MIX OF RAIN AND SNOW THROUGH MID AFTERNOON. THE MOST SIGNIFICANT
ACCUMULATIONS FOR LOOKOUT PASS WILL OCCUR LATE TODAY THROUGH
TONIGHT. IN ADDITION TO THE HEAVY SNOW IN THE MOUNTAINS...BRISK
SOUTHWEST WINDS GUSTING UP TO 35 MPH WILL PRODUCE AREAS OF
BLOWING AND DRIFTING SNOW... ESPECIALLY ALONG THE RIDGE TOPS.

ELEVATIONS ABOVE 5000 FEET WILL LIKELY BE SNOW THROUGH MOST OF
THE EVENT. EXPECT 12 TO 18 INCHES OF SNOW IN THESE HIGH
ELEVATIONS BY THIS EVENING.

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

$$

WAZ042-132300-
/O.CON.KOTX.SN.Y.0028.000000T0000Z-061214T0000Z/
EAST SLOPES NORTHERN CASCADES-
INCLUDING THE CITIES OF...LEAVENWORTH...MAZAMA...TWISP...WINTHROP
656 AM PST WED DEC 13 2006

...SNOW ADVISORY REMAINS IN EFFECT UNTIL 4 PM PST THIS
AFTERNOON...

A SNOW ADVISORY REMAINS IN EFFECT UNTIL 4 PM PST THIS AFTERNOON. 

SNOW WILL CONTINUE THIS MORNING OVER THE EAST SLOPES OF THE
NORTHERN CASCADES. THE MOST SIGNIFICANT SNOW WILL OCCUR DURING
THE EARLY MORNING HOURS TODAY IN THE COMMUNITIES OF MAZAMA...
TWISP...WINTRHOP ...AND LEAVENWORTH. SNOW AMOUNTS OF 3 TO
6 INCHES ARE POSSIBLE BY MID MORNING. ACCUMULATING SNOW IS
EXPECTED TO END BY 10 AM.

SNOW ACCUMULATIONS OF 10 TO 16 INCHES ARE LIKELY BY LATE THIS
AFTERNOON IN THE MOUNTAINS NEAR THE CASCADE CREST. THE HEAVIEST
SNOW WILL FALL THIS MORNING. WIND GUSTS TO 30 MPH NEAR THE
MOUNTAIN RIDGES WILL CONTRIBUTE TO BLOWING AND DRIFTING.

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.

$$

WAZ043-131800-
/O.CON.KOTX.SN.Y.0028.000000T0000Z-061213T1800Z/
OKANOGAN VALLEY-
INCLUDING THE CITIES OF...OMAK...OKANOGAN...BREWSTER...
BRIDGEPORT...OROVILLE
656 AM PST WED DEC 13 2006

...SNOW ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST THIS MORNING
ABOVE 2000 FEET...

A SNOW ADVISORY ABOVE 2000 FEET REMAINS IN EFFECT UNTIL 10 AM PST
THIS MORNING. 

SNOW WILL CONTINUE TO FALL THROUGH MID MORNING TODAY. SNOW
AMOUNTS OF 2 TO 3 INCHES CAN BE EXPECTED BY THIS MORNING FOR
ELEVATIONS ABOVE 2000 FEET. BELOW 2000 FEET...A MIXTURE OF RAIN
AND WET SNOW WILL CONTRIBUTE TO MINOR SLUSHY ACCUMULATIONS.

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 
WWUS46 KOTX 131716
WSWOTX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SPOKANE WA
916 AM PST WED DEC 13 2006

WAZ037-131830-
/O.CAN.KOTX.WS.W.0014.000000T0000Z-061214T0300Z/
NORTHEAST MOUNTAINS-
INCLUDING THE CITIES OF...COLVILLE...DEER PARK...CHEWELAH...
NEWPORT...KETTLE FALLS
916 AM PST WED DEC 13 2006

...WINTER STORM WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN SPOKANE HAS CANCELLED THE WINTER
STORM WARNING FOR THE NORTHEAST WASHINGTON MOUNTAINS.

THE BAND OF HEAVIEST SNOW HAS MOVED SOUTH OF THE REGION. OCCASIONAL
SNOW SHOWERS WILL LIKELY BRING AN ADDITIONAL 1 TO 3 INCHES OF SNOW
TO THE MOUNTAINS ABOVE 3500 FEET THIS AFTERNOON...BUT
ACCUMULATING SNOW IS NO LONGER EXPECTED IN THE VALLEYS.

$$

WAZ043-131830-
/O.CAN.KOTX.SN.Y.0028.000000T0000Z-061213T1800Z/
OKANOGAN VALLEY-
INCLUDING THE CITIES OF...OMAK...OKANOGAN...BREWSTER...
BRIDGEPORT...OROVILLE
916 AM PST WED DEC 13 2006

...SNOW ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN SPOKANE HAS CANCELLED THE SNOW
ADVISORY FOR THE OKANOGAN VALLEY. SNOW HAS COME TO AN END IN THE
OKANOGAN VALLEY...AND NO ADDITIONAL ACCUMULATIONS ARE EXPECTED TODAY.

$$

IDZ001-004-140130-
/O.CON.KOTX.WS.W.0014.000000T0000Z-061214T0600Z/
NORTHERN PANHANDLE-CENTRAL PANHANDLE MOUNTAINS-
INCLUDING THE CITIES OF...SANDPOINT...RATHDRUM...BONNERS FERRY...
PRIEST RIVER...ST. MARIES...KELLOGG...PINEHURST...OSBURN...
WALLACE...MULLAN
916 AM PST WED DEC 13 2006

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 PM PST THIS
EVENING ABOVE 4000 FEET...

A WINTER STORM WARNING ABOVE 4000 FEET REMAINS IN EFFECT UNTIL
10 PM PST THIS EVENING. 

SNOW LEVELS HAVE RISEN TO 5000 FEET OVER THE MOUNTAINS OF THE CENTRAL
IDAHO PANHANDLE...AND THE MAJOR PASSES ON INTERSTATE 90 ARE
EXPERIENCING A MIXTURE OF RAIN AND WET SNOW. SNOW LEVELS ARE
EXPECTED TO DROP DURING THE AFTERNOON TO BETWEEN 3500 AND 4000
FEET. AN ADDITIONAL 2 TO 4 INCHES OF SNOW IS LIKELY LATE IN THE
AFTERNOON AND EARLY THIS EVENING AROUND LOOKOUT PASS.

FOR THE NORTHERN PANHANDLE MOUNTAINS...SNOW LEVELS RANGE FROM NEAR
2500 FEET NEAR THE CANADIAN BORDER TO 3500 FEET NEAR SANDPOINT.
PERIODIC SNOW SHOWERS WILL BRING AN ADDITIONAL 2 TO 4 INCHES OF
SNOW TO THE MOUNTAINS ABOVE 3000 FEET THIS AFTERNOON.

IN ADDITION TO THE SNOW IN THE MOUNTAINS...BRISK SOUTHWEST WINDS
GUSTING UP TO 40 MPH WILL PRODUCE AREAS OF BLOWING AND DRIFTING
SNOW...ESPECIALLY ALONG THE RIDGE TOPS.

ELEVATIONS ABOVE 5000 FEET WILL LIKELY BE SNOW THROUGH MOST OF
THE EVENT. EXPECT TOTAL STORM ACCUMULATIONS OF 12 TO 18 INCHES IN
THESE HIGH ELEVATIONS BY THIS EVENING.

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

$$

WAZ042-140000-
/O.CON.KOTX.SN.Y.0028.000000T0000Z-061214T0000Z/
EAST SLOPES NORTHERN CASCADES-
INCLUDING THE CITIES OF...LEAVENWORTH...MAZAMA...TWISP...WINTHROP
916 AM PST WED DEC 13 2006

...SNOW ADVISORY REMAINS IN EFFECT UNTIL 4 PM PST THIS
AFTERNOON...

A SNOW ADVISORY REMAINS IN EFFECT UNTIL 4 PM PST THIS AFTERNOON. 

THE THREAT OF ACCUMULATING SNOW HAS ENDED IN THE VALLEYS ALONG THE
EAST SLOPES OF THE CASCADES. THE COMMUNITIES OF LEAVENWORTH...MAZAMA...
TWISP...AND WINTHROP ARE NOT EXPECTED TO RECEIVE ADDITIONAL
ACCUMULATIONS TODAY.

HOWEVER...SNOW SHOWERS WILL BRING AN ADDITIONAL 4 TO 6 INCHES OF
SNOW TO THE MOUNTAINS ALONG THE CASCADE CREST. TOTAL STORM
ACCUMULATIONS WILL RANGE FROM ONE TO TWO FEET BEFORE SNOW
DECREASES THIS EVENING.

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 
WWUS46 KOTX 132326
WSWOTX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SPOKANE WA
326 PM PST WED DEC 13 2006

WAZ042-140030-
/O.CAN.KOTX.SN.Y.0028.000000T0000Z-061214T0000Z/
EAST SLOPES NORTHERN CASCADES-
INCLUDING THE CITIES OF...LEAVENWORTH...MAZAMA...TWISP...WINTHROP
326 PM PST WED DEC 13 2006

...SNOW ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN SPOKANE HAS CANCELLED THE SNOW
ADVISORY. SNOW SHOWERS WILL LINGER ALONG THE CREST OF THE NORTHERN
CASCADES THROUGH THE EVENING...BUT ADDITIONAL ACCUMULATIONS ARE
NOT EXPECTED TO AFFECT THE COMMUNITIES OF MAZAMA...LEAVENWORTH...
WINTHROP...OR TWISP.

TRAVELERS SHOULD BE AWARE THAT SIGNIFICANT SNOWS HAVE FALLEN OVER
THE PASSES OVER THE LAST 12 TO 18 HOURS. DRIVING MAY BE
TREACHEROUS. CHECK THE LATEST PASS CONDITIONS BEFORE ATTEMPTING TO
TRAVEL.

$$

IDZ001-004-140600-
/O.NEW.KOTX.WS.A.0016.061215T0600Z-061216T0000Z/
/O.CON.KOTX.WS.W.0014.000000T0000Z-061214T0600Z/
NORTHERN PANHANDLE-CENTRAL PANHANDLE MOUNTAINS-
INCLUDING THE CITIES OF...SANDPOINT...RATHDRUM...BONNERS FERRY...
PRIEST RIVER...ST. MARIES...KELLOGG...PINEHURST...OSBURN...
WALLACE...MULLAN
326 PM PST WED DEC 13 2006

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 PM PST THIS
EVENING ABOVE 4000 FEET...
...WINTER STORM WATCH IN EFFECT FROM THURSDAY EVENING THROUGH
FRIDAY AFTERNOON ABOVE 3500 FEET...

THE NATIONAL WEATHER SERVICE IN SPOKANE HAS ISSUED A WINTER STORM
WATCH ABOVE 3500 FEET...WHICH IS IN EFFECT FROM THURSDAY EVENING
THROUGH FRIDAY AFTERNOON. A WINTER STORM WARNING ABOVE 4000 FEET
REMAINS IN EFFECT UNTIL 10 PM PST THIS EVENING. 

SNOW LEVELS HAVE GRADUALLY RISEN TO ABOUT 4000 FEET IN THE
CENTRAL IDAHO PANHANDLE DURING THE AFTERNOON. BY 8 PM SNOW LEVELS
ARE EXPECTED TO FALL TO NEAR 3500 FEET. AN ADDITIONAL 2 TO 4
INCHES OF SNOW IS EXPECTED ABOVE 4000 FEET BY LATE EVENING. GUSTY
WEST WINDS WILL ACCOMPANY THE FALLING SNOW...MAKING FOR NEAR ZERO
VISIBILITY IN SOME OF THE HEAVIER SNOW SQUALLS. TRAVELERS SHOULD
BE PREPARED FOR DETERIORATING CONDITIONS ON INTERSTATE 90 AROUND
LOOKOUT PASS AS WELL AS FOURTH OF JULY PASS.

FOR THE NORTHERN PANHANDLE MOUNTAINS...SNOW LEVELS WILL BE AROUND
2500 FEET THIS EVENING. PERIODIC SNOW SHOWERS WILL BRING AN
ADDITIONAL 1 TO 3 INCHES OF SNOW TO THE MOUNTAINS THIS EVENING ABOVE
3000 FEET.

ANOTHER POTENT WINTER STORM WILL HIT THE PANHANDLE MOUNTAINS
THURSDAY EVENING. STRONG WINDS AND SIGNIFICANT SNOWS WILL AFFECT
THE REGION ABOVE 3500 FEET.

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

$$

000 
WWUS46 KOTX 140549
WSWOTX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SPOKANE WA
949 PM PST WED DEC 13 2006

IDZ001-004-141800-
/O.EXP.KOTX.WS.W.0014.000000T0000Z-061214T0600Z/
/O.CON.KOTX.WS.A.0016.061215T0600Z-061216T0000Z/
NORTHERN PANHANDLE-CENTRAL PANHANDLE MOUNTAINS-
INCLUDING THE CITIES OF...SANDPOINT...RATHDRUM...BONNERS FERRY...
PRIEST RIVER...ST. MARIES...KELLOGG...PINEHURST...OSBURN...
WALLACE...MULLAN
949 PM PST WED DEC 13 2006

...WINTER STORM WARNING WILL EXPIRE AT 10 PM PST THIS EVENING
ABOVE 4000 FEET...
...WINTER STORM WATCH REMAINS IN EFFECT FROM THURSDAY EVENING
THROUGH FRIDAY AFTERNOON ABOVE 3500 FEET...

THE WINTER STORM WARNING ABOVE 4000 FEET WILL EXPIRE AT 10 PM PST
THIS EVENING. A WINTER STORM WATCH ABOVE 3500 FEET REMAINS IN
EFFECT FROM THURSDAY EVENING THROUGH FRIDAY AFTERNOON. 

ANOTHER POTENT WINTER STORM WILL HIT THE PANHANDLE MOUNTAINS
THURSDAY EVENING. STRONG WINDS AND SIGNIFICANT SNOWS WILL AFFECT
THE REGION ABOVE 3500 FEET.

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

$$

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SPOKANE WA
309 PM PST TUE DEC 12 2006

.SYNOPSIS...A PAIR OF POWERFUL STORM SYSTEMS WILL BRING
WIND...RAIN...AND MOUNTAIN SNOW TO THE REGION THIS WEEK. THE FIRST
STORM WILL ARRIVE EARLY WEDNESDAY MORNING. THE SECOND...
POTENTIALLY STRONGER STORM...WILL TRACK THROUGH THE REGION ON
FRIDAY.

&&

.DISCUSSION...

.TONIGHT THROUGH WEDNESDAY NIGHT...A STRONG AND MOISTURE LADEN
STORM SYSTEM IS TAKING AIM ON THE PACIFIC NORTHWEST. WATER VAPOR
IMAGERY AT 21Z SHOWS THE DEVELOPMENT OF A CLASSIC BAROCLINIC LEAF
OVER THE EASTERN PACIFIC. A LONG SUBTROPICAL MOISTURE FETCH
EXTENDS OVER HALF OF THE PACIFIC BASIN. THE NAM AND GFS
INITIALIZED PRECIPITABLE WATER VALUES APPROACHING 1.5 INCHES.
THE COMBINATION OF STRONG ISENTROPIC ASCENT AND POSITIVE VORTICITY
ADVECTION WILL QUICKLY SPREAD PRECIPITATION INTO THE INLAND
NORTHWEST AFTER 06Z.

FOR THE OKANOGAN AND METHOW VALLEYS...AS WELL AS THE CHELAN
AREA...SNOW LEVELS WILL LIKELY START AROUND 2000 FEET. DESPITE
TEMPERATURES CLIMBING WELL INTO THE 40S THIS AFTERNOON...
EVAPORATIVE PROCESSES COMBINED WITH UPSLOPE FLOW WILL DRIVE SNOW
LEVELS DOWN TO 2000 FEET. THE NAM FORECASTS 5 TO 8 HOURS OF STRONG
ISENTROPIC ASCENT DURING THE EARLY MORNING HOURS...SO IT IS
REASONABLE TO EXPECT 3 TO 6 INCHES OF SNOW ABOVE 2500 FEET...AND 1
TO 3 INCHES FOR SPOTS BETWEEN 2000 FEET AND 2500 FEET.

WINTER STORM WATCHES FOR THE NORTHEAST WASHINGTON MOUNTAINS AS
WELL AS THE PANHANDLE ZONES HAVE BEEN UPGRADED TO WINTER STORM
WARNINGS. SNOW LEVELS WILL BE ONE POTENTIAL LIMITING FACTOR FOR
THE CENTRAL PANHANDLE MOUNTAINS. SNOW LEVELS WEDNESDAY MORNING
WILL BE ABOVE 5000 FEET AND GRADUALLY FALL TO 3500 FEET BY
WEDNESDAY EVENING. THIS HIGH QPF EVENT WILL PRODUCE BIG SNOW
AMOUNTS FOR THE HIGHEST ELEVATIONS (WELL OVER A FOOT)...BUT
ELEVATIONS AT 4000 FEET ARE STILL SOMEWHAT IN QUESTION. THE
MAJORITY OF ACCUMULATION WILL LIKELY OCCUR LATE IN THE DAY
WEDNESDAY AT THE PASS LEVELS FOR IDAHO ZONE 4.

WIND ADVISORIES HAVE BEEN POSTED FOR THE SPOKANE...PULLMAN...
RITZVILLE AND POMEROY AREAS FROM 12Z TO 03Z WEDNESDAY. STRONG LOW
LEVEL JET DEVELOPMENT AHEAD OF THE COLD FRONT MAY CAUSE SOME OF
THE ELEVATIONS ABOVE 2500 FEET TO BLOW BEFORE THE FRONT ARRIVES.
FOR THE AFTERNOON...THE COLUMBIA BASIN HAS BEEN ADDED TO THE WIND
ADVISORY FOR THE WELL MIXED POST FRONTAL ENVIRONMENT. WITH 850MB
WINDS RANGING FROM 45 TO 55 KTS ON THE MODELS...GUSTS REACHING 45
MPH WILL BE POSSIBLE. /GKOCH

THURSDAY THROUGH FRIDAY NIGHT...A BRIEF BREAK IN THE WEATHER
THURSDAY MORNING AS A SHORTWAVE RIDGE MOVES IN AHEAD OF THE NEXT
WEATHER SYSTEM. AN ALMOST VERTICALLY STACKED LOW WILL MOVE TOWARD
THE WEST COAST THURSDAY AFTERNOON. THE TRACK OF THE SURFACE LOW IS
THAT WHICH WILL FAVOR SOUTH TO SOUTHEAST FLOW ON THE EAST SLOPES
OF THE CASCADES PROVIDING COLD AIR DAMMING. THIS IN TURN WILL
ALLOW FOR A MAINLY SNOW EVENT THUR AFTERNOON AND EVENING FOR THE
WENATCHEE/WATERVILLE PLATEAU AND EAST SLOPES OF THE NORTHERN
CASCADES. PRECIPITABLE WATER VALUES IN THE PACIFIC ARE NEARING AN
INCH...SO PLENTY OF MOISTURE TO WORK WITH. THE WARM FRONT WILL
MOVE INTO THE SOUTHERN PART OF THE COUNTY WARNING AREA THURSDAY
LATE EVENING FOLLOWED BY A COLD FRONT FRIDAY MORNING. THE WARM AIR
NEVER MAKES IT FURTHER NORTH THAN ABOUT DEER PARK...SO SNOW FOR
NORTHERN WASHINGTON AND IDAHO. THE MAIN FORECAST CONCERN WILL BE
WINDS ASSOCIATED WITH THIS SYSTEM. GFS MODEL SHOWING 850 MB WINDS
OF 60-70 KTS THURSDAY EVENING AS THE WINDS VEER TO THE SOUTHWEST
AND CONTINUES THROUGH FRIDAY MORNING. THE POTENTIAL EXISTS FOR
WIND HIGHLIGHTS NEEDED DURING THIS TIME PERIOD FOR THE
BASIN...PALOUSE...AND SPOKANE/COE AREAS...ALONG WITH WINTER
HIGHLIGHTS IN THE MOUNTAINS. THE WINDS SHIFT WESTERLY BY FRIDAY
AFTERNOON AND PRECIPITATION WILL BE ON THE DECREASE...ALONG WITH THE
WINDS. BY FRIDAY NIGHT...THE SURFACE LOW WILL ALREADY BE INTO
SASKATCHEWAN AND WE WILL BE LEFT IN THE COLD WEST TO NORTHWEST FLOW
WITH ONLY MAINLY MOUNTAIN SHOWERS REMAINING. /KOCH

SATURDAY THROUGH TUESDAY...THE GENERAL IDEA OF A PATTERN SHIFT
FROM AUTUMNAL WEATHER BACK INTO WINTER WILL ALREADY BE WELL
UNDERWAY SATURDAY. GOOD CONSENSUS AMONGST GLOBAL GUIDANCE ON THE
FORMATION OF A DEEP UPPER TROUGH ENCOMPASSING THE PACIFIC
NORTHWEST BY SATURDAY...WITH AN AXIS ALIGNED SOMEWHERE NEARBY OR
OVER THE PUGET SOUND. WITH SIGNIFICANT COLD AIR AHEAD OF IT...AND
STILL THE REMNANTS OF SOME MOISTURE FROM THE SYSTEM OF THURSDAY
NIGHT AND FRIDAY AROUND...BELIEVE ENOUGH INSTABILITY WILL STILL BE
AROUND PER THE SOUNDINGS FROM THE GFS TO SUPPORT SNOW SHOWERS IN
THE MOUNTAINS AND FLURRIES IN THE LOWER ELEVATIONS. WITH
SIGNIFICANT SYNOPTIC FORCING FOR ASCENT HAVING ALREADY PASSED THE
AREA...DECIPHERING A LOCATION FOR ANY ACCUMULATIONS WILL BE
TOUGH...AND IT IS LIKELY THAT NOBODY WILL SEE VERY MUCH SNOWFALL
ANYWAY. AS WE GO INTO SUNDAY...A WEAK SHORT WAVE TROUGH CENTERS
LIFT JUST TO OUR WEST AND SOUTH AS IT DIVES INTO THE BASE OF THE
MEAN UPPER TROUGH...GENERALLY LEAVING US DRY. AS WE CONTINUE INTO
THE PERIOD...THE DEEP UPPER TROUGH BEGINS TO BE REPLACED BY
SIGNIFICANT SHORT WAVE RIDGING FOR THE BEGINNING OF NEXT WEEK. GFS
SOUNDINGS INDICATE STRONG INVERSIONS SHOULD SET UP UNDERNEATH THIS
RIDGE BY SUNDAY NIGHT. ADDITIONALLY...LOW LEVEL MOISTURE WILL LIKELY
BEGIN TO GET TRAPPED IN THE BOUNDARY LAYER AND WITH STRONG
VERTICAL DECOUPLING...BELIEVE WINDS WILL MARKEDLY DECREASE AND
STRATUS WILL BECOME AN ISSUE AGAIN. TEMPERATURES AT 850 MB WILL
HAVE ALREADY PLUMMETED BY THIS POINT...SO BELIEVE MOST LOCATIONS
IN THE CWA SHOULD BE BACK TO OR BELOW NORMAL. THE SHORT WAVE RIDGE
BEGINS TO PUSH EAST OF US BY TUESDAY...WITH SOLID DIFFLUENCE AND
GOOD VERTICAL CONSISTENCY TO Q-CONVERGENCE FIELD ENCROACHING ON
THE CWA. WITH ONLY A MODEST INCREASE IN THE ON SHORE FLOW AND
MIXING RATIOS JUST NUDGING TOWARD 1 G/KG WITH WEAK TO MODEST
ASCENT IN THE 275-285K LAYER...BELIEVE THERE WILL BE A CHANCE FOR
SNOW EVERYWHERE ON TUESDAY...HOWEVER AT THIS TIME IT DOES NOT LOOK
LIKE ANYTHING TO WRITE HOME ABOUT. WHILE TEMPERATURES THROUGHOUT
THE PERIOD LOOK TO BE COLD ENOUGH FOR SNOW EVERYWHERE...THE STORM
TRACK WILL PRIMARILY BE TO OUR SOUTH AT LEAST UNTIL THE END OF THE
PERIOD AND THE SYSTEM FOR TUESDAY LOOKS WEAK. WE WILL NEED A LOT
MORE HELP FROM MOTHER NATURE FOR A WHITE CHRISTMAS IN THE LOWER
ELEVATIONS...WHILE A WHITE CHRISTMAS IN THE MOUNTAINS IS ASSURED
AT THIS POINT. IN LOOKING AT THE MODELS BEYOND THE EXTENDED
FORECAST PERIOD...THE GFS AND MANY OF ITS ENSEMBLES DO SHOW A
LARGER SYSTEM APPROACHING FOR THE LATTER PART OF NEXT WEEK. THIS
MAY WELL BE OUR LAST CHANCE TO TRY TO GET SOME SNOW ON THE GROUND
IN THE LOWER ELEVATIONS BEFORE THE HOLIDAYS...ONLY TIME WILL TELL.

TEMPERATURES THROUGH THE PERIOD WILL BECOME AND REMAIN QUITE COLD.
FOLLOWED WELL BELOW GUIDANCE FOR MOST AREAS FOR THE ENTIRE
PERIOD...ESPECIALLY IN THE OKANOGAN VALLEY AS CONDITIONS SEEM TO
BE RIPE FOR COLD AIR DRAINAGE WITH THE GFS AND ECMWF DEPICTING A
DECENT COLD AIR POOL MOVING INTO SOUTHERN BRITISH COLUMBIA...WITH
A SURFACE PATTERN SUGGESTIVE OF NORTHERLY FLOW DOWN THE VALLEY. AS
SUCH...SNOW LEVELS WILL BEGIN THE PERIOD AND STAY AT THE VALLEY
FLOORS SO WHATEVER LITTLE MOISTURE AND LIFT DOES TRAVERSE THE AREA
WILL FALL OUT ENTIRELY AS SNOW. /FRIES

&&

.AVIATION...GUSTY WINDS THIS AFTERNOON SHOULD SUBSIDE BRIEFLY
OVERNIGHT ACROSS THE EASTERN PORTIONS OF THE AREA.  WITH HIGH CLOUDS
ALREADY BEGINNING TO APPROACH THE CASCADES PER LAST FEW IMAGES OF
VISIBLE IMAGERY...EXPECT SKY COVER TO INCREASE OVERNIGHT AT ALL
TAFS...WITH CEILINGS LOWERING TOWARD MORNING.  PRECIPITATION SHOULD
BE ALL RAIN FOR MOST LOCATIONS BEGINNING IN THE EARLY MORNING.  AS
WINDS A FEW THOUSAND FEET OFF THE SURFACE GO TO OVER 50 KTS
TOMORROW...EXPECT SOME MIXING TO THE SURFACE TO OCCUR...ESPECIALLY
NEAR KGEG AND KPUW THROUGH THE MORNING.  OTHER EASTERN TAF SITES
WILL ALSO LIKELY GET RATHER GUSTY IN THE AFTERNOON WITH DIURNAL
INSTABILITY HELPING TO MIX HIGHER MOMENTUM DOWNWARD...HOWEVER BEFORE
THEY DO...WITH RELATIVELY STRONG WINDS NOT FAR OFF THE
SURFACE...SOME WIND SHEAR HAS BEEN DEPICTED IN THE EASTERN TAFS
THROUGH THE MORNING HOURS TOMORROW BEFORE HIGH WINDS MIX DOWN TO THE
SURFACE. /FRIES

&&

.PRELIMINARY POINT TEMPS/POPS...
SPOKANE        33  43  31  38  32  40 /  70  90  20  50  90  50
COEUR DALENE  33  42  32  36  31  39 /  60  90  20  60  90  60
PULLMAN        35  46  34  41  35  43 /  60  90  20  60  80  40
LEWISTON       39  51  37  47  38  47 /  30  70  20  50  80  20
COLVILLE       32  37  31  34  27  34 / 100  90  50  60  90  60
SANDPOINT      33  39  30  35  28  33 /  70  90  60  50  90  60
KELLOGG        34  38  32  37  29  38 /  60  90  60  60  90  70
MOSES LAKE     33  45  31  37  31  39 /  80  50  10  60  80  20
WENATCHEE      33  42  31  34  28  35 /  90  40  10  60  80  20
OMAK           30  41  30  34  26  32 / 100  70  10  60  80  40

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...WIND ADVISORY FROM 4 AM TO 7 PM PST WEDNESDAY FOR COEUR DALENE
     AREA...IDAHO PALOUSE.

     WINTER STORM WARNING FROM 7 AM TO 10 PM PST WEDNESDAY ABOVE 4000
     FEET FOR CENTRAL PANHANDLE MOUNTAINS...NORTHERN PANHANDLE.

WA...SNOW ADVISORY FROM 1 AM TO 4 PM PST WEDNESDAY FOR EAST SLOPES
     NORTHERN CASCADES.

     WIND ADVISORY FROM 4 AM TO 7 PM PST WEDNESDAY FOR SPOKANE AREA...
     WASHINGTON PALOUSE.

     WINTER STORM WARNING FROM 4 AM TO 7 PM PST WEDNESDAY ABOVE 3000
     FEET FOR NORTHEAST MOUNTAINS.

     SNOW ADVISORY FROM 1 AM TO 10 AM PST WEDNESDAY ABOVE 2000 FEET
     FOR OKANOGAN VALLEY.

     WIND ADVISORY FROM 10 AM TO 7 PM PST WEDNESDAY FOR LOWER
     GARFIELD AND ASOTIN COUNTIES...UPPER COLUMBIA BASIN.

&&

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SPOKANE WA
606 AM PST TUE DEC 12 2006

IDZ002-003-026-027-WAZ031>036-038-041-044-131415-
COEUR DALENE AREA-IDAHO PALOUSE-LEWISTON AREA-
LEWIS AND SOUTHERN NEZ PERCE COUNTIES-NORTHEAST BLUE MOUNTAINS-
LOWER GARFIELD AND ASOTIN COUNTIES-WASHINGTON PALOUSE-
MOSES LAKE AREA-UPPER COLUMBIA BASIN-SPOKANE AREA-
OKANOGAN HIGHLANDS-WENATCHEE AREA-WATERVILLE PLATEAU-
INCLUDING THE CITIES OF...COEUR DALENE...POST FALLS...HAYDEN...
MOSCOW...LEWISTON...KAMIAH...CRAIGMONT...NEZPERCE...WINCHESTER...
ANATONE...PEOLA...CLARKSTON...PULLMAN...MOSES LAKE...EPHRATA...
OTHELLO...QUINCY...RITZVILLE...COULEE DAM...ODESSA...
ELECTRIC CITY...WILBUR...GRAND COULEE...COULEE CITY...SPOKANE...
REPUBLIC...INCHELIUM...WENATCHEE...WATERVILLE...MANSFIELD
606 AM PST TUE DEC 12 2006

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTH
IDAHO...NORTH CENTRAL IDAHO...CENTRAL WASHINGTON...EAST CENTRAL
WASHINGTON...NORTH CENTRAL WASHINGTON...NORTHEAST WASHINGTON AND
SOUTHEAST WASHINGTON.

.DAY ONE...TODAY AND TONIGHT

MILD WEATHER WITH POSSIBLE SHOWERS THIS ACFTERNOON. THEN THE NEXT
IN A SERIES OF WEATHER SYSTEM WILL MOVE INTO THE REGION TONIGHT.
THIS WILL BRING ANOTHER ROUND OF WET WEATHER TO THE REGION TONIGHT
AND WEDNESDAY.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

A STRONG PACIFIC WEATHER SYSTEM WILL CONTINUE TO BRING
RAIN...SNOW AND WINDY CONDITIONS THROUGH WEDNESDAY. THE UNSETTLED
WEATHER WILL CONTINUE AS A SERIES OF PACIFIC WEATHER SYSTEMS WILL
BRING A MIXTURE OF RAIN AND SNOW THROUGH THE REMAINDER OF THE
WEEK.

IDZ001-004-131415-
NORTHERN PANHANDLE-CENTRAL PANHANDLE MOUNTAINS-
INCLUDING THE CITIES OF...SANDPOINT...RATHDRUM...BONNERS FERRY...
PRIEST RIVER...ST. MARIES...KELLOGG...PINEHURST...OSBURN...
WALLACE...MULLAN
606 AM PST TUE DEC 12 2006

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTH IDAHO.

THE FOLLOWING WATCHES WARNINGS OR ADVISORIES ARE CURRENTLY IN EFFECT
   WINTER STORM WATCH IN EFFECT FROM WEDNESDAY MORNING THROUGH
     WEDNESDAY EVENING ABOVE 4000 FEET.

PLEASE SEE THE FOLLOWING PRODUCTS FOR MORE INFORMATION.
   SEAWSWOTX  /WWUS46 KOTX/

.DAY ONE...TODAY AND TONIGHT

MILD WEATHER WITH MOUNTAIN SNOW SHOWERS THIS AFTERNOON. THEN THE
NEXT IN A SERIES OF WEATHER SYSTEM WILL MOVE INTO THE REGION
TONIGHT. THIS WILL BRING ANOTHER ROUND OF VALLEY RAIN AND MOUNTAIN
SNOW THE AREA TONIGHT AND WEDNESDAY.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

A STRONG PACIFIC WEATHER SYSTEM WILL CONTINUE TO BRING
RAIN...SNOW AND WINDY CONDITIONS THROUGH WEDNESDAY. THE UNSETTLED
WEATHER WILL CONTINUE AS A SERIES OF PACIFIC WEATHER SYSTEMS WILL
BRING A MIXTURE OF RAIN AND SNOW THROUGH THE REMAINDER OF THE
WEEK.

WAZ037-131415-
NORTHEAST MOUNTAINS-
INCLUDING THE CITIES OF...COLVILLE...DEER PARK...CHEWELAH...
NEWPORT...KETTLE FALLS
606 AM PST TUE DEC 12 2006

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHEAST
WASHINGTON.

THE FOLLOWING WATCHES WARNINGS OR ADVISORIES ARE CURRENTLY IN EFFECT
   WINTER STORM WATCH IN EFFECT FROM LATE TONIGHT THROUGH
     WEDNESDAY AFTERNOON ABOVE 3000 FEET.

PLEASE SEE THE FOLLOWING PRODUCTS FOR MORE INFORMATION.
   SEAWSWOTX  /WWUS46 KOTX/

.DAY ONE...TODAY AND TONIGHT

MILD WEATHER WITH MOUNTAIN SNOW SHOWERS THIS AFTERNOON. THEN THE
NEXT IN A SERIES OF WEATHER SYSTEM WILL MOVE INTO THE REGION
TONIGHT. THIS WILL BRING ANOTHER ROUND OF VALLEY RAIN AND MOUNTAIN
SNOW THE AREA TONIGHT AND WEDNESDAY.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

A STRONG PACIFIC WEATHER SYSTEM WILL CONTINUE TO BRING
RAIN...SNOW AND WINDY CONDITIONS THROUGH WEDNESDAY. THE UNSETTLED
WEATHER WILL CONTINUE AS A SERIES OF PACIFIC WEATHER SYSTEMS WILL
BRING A MIXTURE OF VALLEY RAIN AND MOUNTAIN SNOW THROUGH THE
REMAINDER OF THE WEEK.

WAZ042-131415-
EAST SLOPES NORTHERN CASCADES-
INCLUDING THE CITIES OF...LEAVENWORTH...MAZAMA...TWISP...WINTHROP
606 AM PST TUE DEC 12 2006

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

THE FOLLOWING WATCHES WARNINGS OR ADVISORIES ARE CURRENTLY IN EFFECT
   SNOW ADVISORY IN EFFECT FROM 1 AM TO 4 PM PST WEDNESDAY.

PLEASE SEE THE FOLLOWING PRODUCTS FOR MORE INFORMATION.
   SEAWSWOTX  /WWUS46 KOTX/

.DAY ONE...TODAY AND TONIGHT

MILD WEATHER WITH SNOW SHOWERS NEAR THE CASCADES CREST TODAY. THEN
THE NEXT IN A SERIES OF WEATHER SYSTEM WILL MOVE INTO THE REGION
TONIGHT. THIS WILL BRING ANOTHER ROUND OF VALLEY RAIN AND MOUNTAIN
SNOW THE AREA TONIGHT AND WEDNESDAY.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

A STRONG PACIFIC WEATHER SYSTEM WILL CONTINUE TO BRING
VALLEY RAIN...MOUNTAIN SNOW AND WINDY CONDITIONS THROUGH
WEDNESDAY. THE UNSETTLED WEATHER WILL CONTINUE AS A SERIES OF
PACIFIC WEATHER SYSTEMS WILL BRING A MIXTURE OF RAIN AND SNOW
THROUGH THE REMAINDER OF THE WEEK.

WAZ043-131415-
OKANOGAN VALLEY-
INCLUDING THE CITIES OF...OMAK...OKANOGAN...BREWSTER...
BRIDGEPORT...OROVILLE
606 AM PST TUE DEC 12 2006

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

THE FOLLOWING WATCHES WARNINGS OR ADVISORIES ARE CURRENTLY IN EFFECT
   SNOW ADVISORY IN EFFECT FROM 1 AM TO 10 AM PST WEDNESDAY ABOVE
     2000 FEET.

PLEASE SEE THE FOLLOWING PRODUCTS FOR MORE INFORMATION.
   SEAWSWOTX  /WWUS46 KOTX/

.DAY ONE...TODAY AND TONIGHT

MILD WEATHER WITH A FEW SHOWERS EXPECTED  THIS AFTERNOON. THEN
THE NEXT IN A SERIES OF WEATHER SYSTEMS WILL MOVE INTO THE REGION
TONIGHT. THIS WILL BRING ANOTHER ROUND OF VALLEY RAIN AND MOUNTAIN
SNOW THE AREA THROUGH WEDNESDAY.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

A STRONG PACIFIC WEATHER SYSTEM WILL CONTINUE TO BRING
VALLEY RAIN...MOUNTAIN SNOW AND WINDY CONDITIONS THROUGH
WEDNESDAY. THE UNSETTLED WEATHER WILL CONTINUE AS A SERIES OF
PACIFIC WEATHER SYSTEMS WILL BRING A MIXTURE OF RAIN AND SNOW
THROUGH THE REMAINDER OF THE WEEK.