Snow Advisory 3, NWS Spokane, WA

000 
WWUS46 KOTX 051647
WSWOTX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SPOKANE WA
847 AM PST FRI JAN 5 2007

ANOTHER MOISTURE-LADEN SYSTEM WILL MOVE INTO THE PACIFIC
NORTHWEST FRIDAY AND FRIDAY NIGHT...AND WILL LIKELY PRODUCE HEAVY
SNOW OVER THE NORTHERN CASCADES STARTING LATE THIS MORNING OR
EARLY AFTERNOON. THESE SNOWS WILL ALSO SPREAD TOWARD NORTHEAST WASHINGTON
AND IDAHO PANHANDLE FRIDAY AFTERNOON AND FRIDAY NIGHT...BRINGING
LIKELY HEAVY SNOW HERE AS WELL. THE SNOWS FROM THIS SYSTEM ARE
EXPECTED TO BEGIN TO DECREASE TOWARD SATURDAY MORNING AFTER A COLD
FRONT MOVES THROUGH.

WAZ042-060100-
/O.EXT.KOTX.WS.W.0002.070105T1900Z-070106T1200Z/
EAST SLOPES NORTHERN CASCADES-
INCLUDING THE CITIES OF...LEAVENWORTH...MAZAMA...TWISP...WINTHROP
847 AM PST FRI JAN 5 2007

...WINTER STORM WARNING NOW IN EFFECT UNTIL 4 AM PST SATURDAY...

THE WINTER STORM WARNING IS NOW IN EFFECT UNTIL 4 AM PST
SATURDAY. 

BY SATURDAY MORNING...SNOW ACCUMULATIONS OF 8 TO 14 INCHES ARE
LIKELY FOR THE MOUNTAINS OF THE EAST SLOPES OF THE CASCADES. THE
HEAVIEST SNOW WILL OCCUR LATE FRIDAY AFTERNOON AND CONTINUE
THROUGH THE EARLY MORNING HOURS ON SATURDAY. THE COMMUNITIES OF
MAZAMA...LEAVENWORTH...AND HOLDEN VILLAGE CAN EXPECT THE HIGHEST
SNOW TOTALS WITH THIS STORM. TWISP...CARLTON...AND CONCONULLY CAN
EXPECT SNOW IN THE 2 TO 5 INCH RANGE.

IN ADDITION TO THE HEAVY SNOW WINDS OF 20 TO 30 MPH WITH GUSTS
ABOVE 40 MPH WILL ACCOMPANY THE PASSAGE OF A COLD FRONT FRIDAY
NIGHT. HEAVY SNOW ACCOMPANIED WITH BLOWING AND DRIFTING WILL MAKE
TRAVEL DANGEROUS.

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.

$$

IDZ001-004-WAZ037-060100-
/O.EXT.KOTX.WS.W.0002.070105T2100Z-070106T2000Z/
NORTHERN PANHANDLE-CENTRAL PANHANDLE MOUNTAINS-
NORTHEAST MOUNTAINS-
INCLUDING THE CITIES OF...SANDPOINT...RATHDRUM...BONNERS FERRY...
PRIEST RIVER...ST. MARIES...KELLOGG...PINEHURST...OSBURN...
WALLACE...MULLAN...COLVILLE...DEER PARK...CHEWELAH...NEWPORT...
KETTLE FALLS
847 AM PST FRI JAN 5 2007

...WINTER STORM WARNING NOW IN EFFECT FROM 1 PM THIS AFTERNOON TO
12 PM PST SATURDAY...

THE WINTER STORM WARNING IS NOW IN EFFECT FROM 1 PM THIS
AFTERNOON TO 12 PM PST SATURDAY. 

ANOTHER SYSTEM WILL MOVE INTO THE AREA FRIDAY AFTERNOON AND
CONTINUE THROUGH LATE SATURDAY MORNING. SNOW ACCUMULATIONS OF 4 TO
8 INCHES IN THE VALLEYS AND 8 TO 14 INCHES IN THE MOUNTAINS ARE
EXPECTED.

IN ADDITION TO THE HEAVY SNOW WINDS OF 20 TO 30 MPH WITH GUSTS
ABOVE 40 MPH WILL ACCOMPANY THE PASSAGE OF A COLD FRONT FRIDAY
NIGHT AND EARLY SATURDAY. HEAVY SNOW ACCOMPANIED WITH BLOWING AND
DRIFTING WILL MAKE TRAVEL DANGEROUS.

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.

$$

IDZ002-WAZ036-060100-
/O.EXT.KOTX.SN.Y.0003.070105T2100Z-070106T1500Z/
COEUR DALENE AREA-SPOKANE AREA-
INCLUDING THE CITIES OF...COEUR DALENE...POST FALLS...HAYDEN...
SPOKANE
847 AM PST FRI JAN 5 2007

...SNOW ADVISORY NOW IN EFFECT FROM 1 PM THIS AFTERNOON TO 7 AM
PST SATURDAY...

THE SNOW ADVISORY IS NOW IN EFFECT FROM 1 PM THIS AFTERNOON TO
7 AM PST SATURDAY. 

STEADY LIGHT SNOW WILL BEGIN THIS AFTERNOON AND CONTINUE THROUGH
TONIGHT. EXPECT 1 TO 3 INCHES OF ACCUMULATION IN THE SPOKANE AREA
AND 2 TO 4 INCHES IN THE COEUR DALENE AREA. IN ADDITION GUSTY
WINDS WILL CREATE AREAS OF BLOWING AND DRIFTING SNOW WITH REDUCED
VISIBILITIES OVER EXPOSED LOCATIONS.

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.

$$

IDZ003-WAZ033-060100-
/O.EXT.KOTX.SN.Y.0003.070105T2100Z-070106T1500Z/
IDAHO PALOUSE-WASHINGTON PALOUSE-
INCLUDING THE CITIES OF...MOSCOW...PULLMAN
847 AM PST FRI JAN 5 2007

...SNOW ADVISORY NOW IN EFFECT FROM 1 PM THIS AFTERNOON TO 7 AM
PST SATURDAY ABOVE 2000 FEET...

THE SNOW ADVISORY IS NOW IN EFFECT FROM 1 PM THIS AFTERNOON TO
7 AM PST SATURDAY. 

STEADY LIGHT SNOW WILL BEGIN LATE THIS AFTERNOON AND CONTINUE
THROUGH TONIGHT. EXPECT 2 TO 4 INCHES OF ACCUMULATION ABOVE
2000 FEET ELEVATION. IN ADDITION GUSTY WINDS WILL CREATE AREAS OF
BLOWING AND DRIFTING SNOW WITH REDUCED VISIBILITIES OVER EXPOSED
LOCATIONS.

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 051942
WSWOTX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SPOKANE WA
1142 AM PST FRI JAN 5 2007

ANOTHER MOISTURE-LADEN SYSTEM WILL MOVE INTO THE PACIFIC
NORTHWEST TODAY AND TONIGHT...AND WILL LIKELY PRODUCE HEAVY SNOW
OVER THE NORTHERN CASCADES STARTING BY MIDDAY. THE HEAVY SNOW
WILL ALSO SPREAD TOWARD NORTHEAST WASHINGTON AND IDAHO PANHANDLE
LATE THIS AFTERNOON AND TONIGHT. THE SNOW FROM THIS SYSTEM WILL DECREASE
SATURDAY MORNING WITH THE PASSAGE OF A COLD FRONT. THIS SYSTEM
WILL ALSO BE ACCOMPANIED BY STRONG WEST TO SOUTHWEST WINDS WHICH
WILL LIKELY PRODUCE AREAS OF BLOWING AND DRIFTING SNOW.

WAZ033-060745-
/O.CAN.KOTX.SN.Y.0003.070105T2100Z-070106T1500Z/
/O.NEW.KOTX.SB.Y.0001.070105T2100Z-070106T1500Z/
WASHINGTON PALOUSE-
INCLUDING THE CITY OF...PULLMAN
1142 AM PST FRI JAN 5 2007

...SNOW ADVISORY IS CANCELLED...
...SNOW AND BLOWING SNOW ADVISORY IN EFFECT UNTIL 7 AM PST
SATURDAY ABOVE 2000 FEET...

THE NATIONAL WEATHER SERVICE IN SPOKANE HAS ISSUED A SNOW AND
BLOWING SNOW ADVISORY ABOVE 2000 FEET...WHICH IS IN EFFECT UNTIL
7 AM PST SATURDAY. THE SNOW ADVISORY HAS BEEN CANCELLED. 

STEADY LIGHT SNOW WILL BEGIN LATE THIS AFTERNOON AND CONTINUE
THROUGH TONIGHT. EXPECT 2 TO 4 INCHES OF ACCUMULATION ABOVE 2000
FEET ELEVATION...IMPACTING THE CITIES OF COLFAX AND PULLMAN. IN ADDITION
GUSTY WINDS WILL CREATE AREAS OF BLOWING AND DRIFTING SNOW WITH
REDUCED VISIBILITIES OVER EXPOSED LOCATIONS.

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.

$$

WAZ036-060745-
/O.CAN.KOTX.SN.Y.0003.070105T2100Z-070106T1500Z/
/O.NEW.KOTX.SB.Y.0001.070105T2100Z-070106T1500Z/
SPOKANE AREA-
INCLUDING THE CITY OF...SPOKANE
1142 AM PST FRI JAN 5 2007

...SNOW ADVISORY IS CANCELLED...
...SNOW AND BLOWING SNOW ADVISORY IN EFFECT UNTIL 7 AM PST
SATURDAY...

THE NATIONAL WEATHER SERVICE IN SPOKANE HAS ISSUED A SNOW AND
BLOWING SNOW ADVISORY...WHICH IS IN EFFECT UNTIL 7 AM PST
SATURDAY. THE SNOW ADVISORY HAS BEEN CANCELLED. 

STEADY LIGHT SNOW WILL BEGIN LATER THIS AFTERNOON AND CONTINUE
THROUGH THE NIGHT. EXPECT 1 TO 3 INCHES OF ACCUMULATION IN THE
SPOKANE AREA. IN ADDITION GUSTY WINDS WILL CREATE AREAS OF BLOWING
AND DRIFTING SNOW WITH REDUCED VISIBILITIES OVER EXPOSED
LOCATIONS.

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.

$$

IDZ002-003-060745-
/O.UPG.KOTX.SN.Y.0003.070105T2100Z-070106T1500Z/
/O.EXB.KOTX.WS.W.0002.070105T2100Z-070106T1500Z/
COEUR DALENE AREA-IDAHO PALOUSE-
INCLUDING THE CITIES OF...COEUR DALENE...POST FALLS...HAYDEN...
MOSCOW
1142 AM PST FRI JAN 5 2007

...WINTER STORM WARNING IN EFFECT UNTIL 7 AM PST SATURDAY...
...SNOW ADVISORY NO LONGER IN EFFECT...

THE NATIONAL WEATHER SERVICE IN SPOKANE HAS ISSUED A WINTER STORM
WARNING...WHICH IS IN EFFECT UNTIL 7 AM PST SATURDAY. THE SNOW
ADVISORY IS NO LONGER IN EFFECT. 

STEADY LIGHT SNOW WILL BEGIN LATE THIS AFTERNOON AND CONTINUE
THROUGH TONIGHT. EXPECT 3 TO 5 INCHES OF SNOW ACCUMULATION...WITH
THE HIGHEST AMOUNTS LIKELY OVER THE HIGHER TERRAIN EAST OF MOSCOW
AND COEUR DALENE. IN ADDITION GUSTY WINDS WILL CREATE AREAS OF
BLOWING AND DRIFTING SNOW WITH REDUCED VISIBILITIES OVER EXPOSED
LOCATIONS.

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.

$$

IDZ001-004-WAZ037-060745-
/O.EXT.KOTX.WS.W.0002.070105T2100Z-070106T1800Z/
NORTHERN PANHANDLE-CENTRAL PANHANDLE MOUNTAINS-
NORTHEAST MOUNTAINS-
INCLUDING THE CITIES OF...SANDPOINT...RATHDRUM...BONNERS FERRY...
PRIEST RIVER...ST. MARIES...KELLOGG...PINEHURST...OSBURN...
WALLACE...MULLAN...COLVILLE...DEER PARK...CHEWELAH...NEWPORT...
KETTLE FALLS
1142 AM PST FRI JAN 5 2007

...WINTER STORM WARNING NOW IN EFFECT UNTIL 10 AM PST SATURDAY...

THE WINTER STORM WARNING IS NOW IN EFFECT UNTIL 10 AM PST
SATURDAY. 

ANOTHER SYSTEM WILL MOVE INTO THE AREA THIS AFTERNOON AND
CONTINUE THROUGH LATE SATURDAY MORNING. SNOW ACCUMULATIONS OF
4 TO 8 INCHES IN THE VALLEYS AND 8 TO 14 INCHES IN THE MOUNTAINS
ARE EXPECTED.

IN ADDITION TO THE HEAVY SNOW...WINDS OF 20 TO 30 MPH WITH GUSTS
ABOVE 40 MPH WILL ACCOMPANY THE PASSAGE OF A COLD FRONT LATE FRIDAY
NIGHT AND EARLY SATURDAY. HEAVY SNOW ACCOMPANIED WITH BLOWING AND
DRIFTING WILL MAKE TRAVEL CONDITIONS DANGEROUS AT TIMES.

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.

$$

WAZ042-060745-
/O.CON.KOTX.WS.W.0002.000000T0000Z-070106T1200Z/
EAST SLOPES NORTHERN CASCADES-
INCLUDING THE CITIES OF...LEAVENWORTH...MAZAMA...TWISP...WINTHROP
1142 AM PST FRI JAN 5 2007

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 AM PST
SATURDAY...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 AM PST SATURDAY.

SNOW WILL DEVELOP OVER THE EAST SLOPES OF THE NORTH CASCADES TODAY
AND CONTINUE THROUGH SATURDAY MORNING. SNOW ACCUMULATIONS OF 8 TO
14 INCHES ARE LIKELY...WITH THE HEAVIEST AMOUNTS EXPECTED TO OCCUR
NEAR THE CREST AND OVER UPPER PORTIONS OF THE WENATCHEE AND METHOW
VALLEYS.  THE COMMUNITIES OF MAZAMA...LEAVENWORTH...AND HOLDEN
VILLAGE CAN EXPECT THE HIGHEST SNOW TOTALS WITH THIS STORM.
TWISP...CARLTON...AND CONCONULLY CAN EXPECT SNOW IN THE 2 TO 5
INCH RANGE.

IN ADDITION TO THE HEAVY SNOW WINDS OF 20 TO 30 MPH WITH GUSTS
ABOVE 40 MPH WILL ACCOMPANY THE PASSAGE OF A COLD FRONT TONIGHT.
HEAVY SNOW ACCOMPANIED WITH BLOWING AND DRIFTING WILL MAKE TRAVEL
DANGEROUS.

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.

$$

WAZ031-060745-
/O.NEW.KOTX.SB.Y.0001.070106T0000Z-070106T1800Z/
NORTHEAST BLUE MOUNTAINS-
INCLUDING THE CITIES OF...ANATONE...PEOLA
1142 AM PST FRI JAN 5 2007

...SNOW AND BLOWING SNOW ADVISORY IN EFFECT FROM 4 PM THIS
AFTERNOON TO 10 AM PST SATURDAY...

THE NATIONAL WEATHER SERVICE IN SPOKANE HAS ISSUED A SNOW AND
BLOWING SNOW ADVISORY...WHICH IS IN EFFECT FROM 4 PM THIS
AFTERNOON TO 10 AM PST SATURDAY. 

STEADY SNOW WILL BEGIN LATE THIS AFTERNOON AND CONTINUE THROUGH
SATURDAY MORNING...WITH 5 TO 10 INCHES OF ACCUMULATION. IN ADDITION 
GUSTY WINDS WILL CREATE AREAS OF BLOWING AND DRIFTING SNOW WITH
REDUCED VISIBILITIES OVER EXPOSED LOCATIONS.

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.

$$

WAZ038-060745-
/O.NEW.KOTX.SB.Y.0001.070105T2100Z-070106T1200Z/
OKANOGAN HIGHLANDS-
INCLUDING THE CITIES OF...REPUBLIC...INCHELIUM
1142 AM PST FRI JAN 5 2007

...SNOW AND BLOWING SNOW ADVISORY IN EFFECT UNTIL 4 AM PST
SATURDAY...

THE NATIONAL WEATHER SERVICE IN SPOKANE HAS ISSUED A SNOW AND
BLOWING SNOW ADVISORY...WHICH IS IN EFFECT UNTIL 4 AM PST
SATURDAY. 

STEADY LIGHT SNOW WILL BEGIN THIS AFTERNOON AND CONTINUE THROUGH
TONIGHT...WITH 1 TO 3 INCHES OF ACCUMULATION IN THE VALLEYS AND 3
TO 5 INCHES IN THE MOUNTAINS. IN ADDITION GUSTY WINDS WILL CREATE
AREAS OF BLOWING AND DRIFTING SNOW WITH REDUCED VISIBILITIES OVER
EXPOSED LOCATIONS.

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

$$

AREA FORECAST DISCUSSION...CORRECTED
NATIONAL WEATHER SERVICE SPOKANE WA
438 AM PST FRI JAN 5 2007

.SYNOPSIS...A SERIES OF PACIFIC STORMS WILL TRACK ACROSS THE
INLAND NORTHWEST THROUGH THE REMAINDER OF WEEK AND INTO EARLY
NEXT WEEK...BRINGING COOL AND UNSETTLED CONDITIONS TO THE REGION.

&&

.DISCUSSION...UPDATED ZONE FORECAST TO ADD A SNOW ADVISORY FOR THE
PALOUSE REGION AND SPOKANE/CDA AREA FOR TONIGHT TO ACCENTUATE
FORECAST WORDING OF ADVISORY CRITERIA SNOW AMOUNTS WITH THE
PROBABILITY OF GUSTY CONDITIONS CREATING DRIFTING AND SIGNIFICANTLY
REDUCED VISIBILITIES DURING AND IMMEDIATELY AFTER THE SNOW EVENT.

&&

.AVIATION...GENERALLY VFR CONDITIONS WILL PREVAIL THROUGH 21Z EXCEPT
FOR LOCAL LINGERING MOUNTAIN OBSCURATIONS OVER THE IDAHO PANHANDLE
MOUNTAINS. AFTER 21Z A STRONG PACIFIC STORM WILL SPREAD WIDESPREAD
MVFR AND AREAS OF IFR CEILINGS AND VISIBILITIES IN SNOW WITH
EXTENSIVE MOUNTAIN OBSCURATIONS OVER THE ENTIRE REGION AND CONTINUE
THROUGH 12Z SATURDAY. LLWS IS LIKELY OVER THE EASTERN TAF LOCATIONS
AFTER 21Z. /MJF

&&

.PREV DISCUSSION... /ISSUED 337 AM PST FRI JAN 5 2007/

SYNOPSIS...A SERIES OF PACIFIC STORMS WILL TRACK ACROSS THE
INLAND NORTHWEST THROUGH THE REMAINDER OF WEEK AND INTO EARLY
NEXT WEEK...BRINGING COOL AND UNSETTLED CONDITIONS TO THE REGION.

DISCUSSION...
FRIDAY THROUGH SATURDAY NIGHT...A MOISTURE LADEN SYSTEM COMING IN ON
A STRONG JET WILL BE PUSHING INTO THE REGION LATER THIS AFTERNOON...
WITH THE BRUNT OF THE SYSTEM MOVING IN TONIGHT. GUIDANCE IS IN GOOD
AGREEMENT ON THE OVERALL LARGER-SCALE SYNOPTIC FEATURES OF THIS
SYSTEM.  THIS MORNING...INSTABILITY SNOW SHOWERS LINGERING
OVER THE IDAHO PANHANDLE MTNS TO PALOUSE AND BLUES IS EXPECTED TO
CONTINUE WINDING DOWN...AS A MID-LEVEL VORT MAX EXITS AND THE
ATMOSPHERE OVER THE REGION BEGINS TO STABILIZE (AS INDICATED BY
SOME WARMING ABOVE 800 MB AND LAPSE RATES DECREASE).  AS SUCH HAVE
DROPPED THE REMAINING ADVISORIES OVER THIS REGION.

MOISTURE NOSING IN ON THE JET ASSOCIATED WITH THE NEXT SYSTEM IS
ALREADY PUSHING INTO WESTERN WA AND BEGINNING TO IMPINGE ON THE
CASCADES. ISENTROPIC LIFT INCREASES BY MIDDAY OVER THE WESTERN CWA
AND WITH THE WESTERLY FLOW AND MODEST PACIFIC MOISTURE TAP (WITH PWAT
VALUES OF 0.40 TO 0.50 INCHES) COLLIDING WITH THE MTNS...EXPECTING
SOME GOOD QPF AMOUNTS.  WITH THE WESTERLY FLOW FROM ABOUT 850 MB
UP...A SHADOWING EFFECT IS EXPECTED TO CAUSE THE QPF AMOUNTS TO
DECREASE AWAY FROM THE CREST.  STILL ENOUGH ENOUGH ISENTROPIC LIFT
AND MOISTURE IS EXPECTED TO SLOP OVER AND THUS WINTER STORM WARNINGS
ARE IN PLACE FOR THE WAZ042.  THIS ISENTROPIC LIFT AND MOISTURE
ADVANCE EAST THROUGH THE DAY...ENVELOPING ALL OF THE CWA IN CLOUDS
WITH PRECIPITATION CHANCES INCREASING AGAIN THE AFTERNOON.  BY FRIDAY
EVENING (00Z SATURDAY) THE BEST MOISTURE AND LIFT COMBINATION MAKE
IN TO THE PANHANDLE. PRECIPITATION...PRIMARILY IN THE FORM OF SNOW...
IS EXPECTED TO INCREASE THROUGHOUT MUCH OF EASTERN WA AND IDAHO.
HEAVIEST QPF AMOUNTS WILL BE SQUEEZED OUT OVER THE NE MTNS AND
PORTIONS OF THE IDAHO PANHANDLE.  AS SUCH...HAVE UPGRADED WINTER
STORM WATCHES TO WINTER STORM WARNINGS FOR WAZ037 AND IDZ001 AND
IZ004...WHERE SNOW IS EXPECTED TO COMBINED WITH WINDS TONIGHT TO
MIDDAY SATURDAY. STILL SOME UNCERTAINTY IN SNOW AMOUNTS OVER
SPOKANE/CDA...AND TO A LESSER EXTENT THE PALOUSE...MAINLY DUE TO
THE EXTENT OF MILDER AIR THAT MAY GET INTO THE REGION OVERNIGHT
TONIGHT.  IF THERE IS MORE OF A MIX OF RAIN AND SNOW OVERNIGHT...THIS
WOULD HOLD SNOW AMOUNTS DOWN.  PRECIPITATION IS EXPECTED TO BE SNOW
AT THE START HOWEVER...WITH TEMPERATURES SLOWLY RISING OVERNIGHT...
AND THERE IS EXPECTED TO BE SOME ACCUMULATIONS. MAY NEED ADVISORIES
FOR SPOKANE/CDA (THOUGH BETTER RISK LAYS TOWARD CDA) AND
PERHAPS THE IDAHO PALOUSE. (COULD BE MARGINAL HVY SNOW WARNING
VALUES NEAR CDA/IDAHO PALOUSE.) TONIGHT (BETWEEN 09-12Z) THE
COLD FRONT IS EXPECTED TO BE MOVING INTO THE CASCADES AND WILL BE
ADVANCING RAPIDLY TOWARD THE EAST BY SATURDAY MORNING.  THE DYNAMICS
AND MECHANICAL FORCING WITH THE FRONT WILL HELP TO BRIEFLY RAISE POPS
OVER PORTIONS OF THE OKANOGAN VALLEY THROUGH WATERVILLE PLATEAU.  BY
MIDDAY SATURDAY DRIER AIR MOVES IN AND PRECIPITATION IS EXPECTED TO
RAPIDLY DECREASE...WITH MAINLY THE MTNS SEEING PRECIPITATION CHANCES
BY EARLY SATURDAY NIGHT. IN ADDITION TO THE SNOW...THIS SYSTEM WILL
ALSO BRING BREEZY TO WINDY CONDITIONS.  IT WILL BECOME BREEZY THIS
AFTERNOON BUT THE STRONGEST WINDS ARE EXPECTED TO DEVELOP TONIGHT
INTO SATURDAY MORNING...AS A STRONG LOW LEVEL JET TRAVERSES THE
REGION. WILL HAVE TO MONITOR PORTIONS OF THE BASIN/SPOKANE/CDA AND
SOUTHEAST CWA (INCLUDING THE PALOUSE) FOR POTENTIAL WIND ADVISORIES.
/JCOTE

SUNDAY THROUGH THURSDAY...THERE IS PRETTY GOOD AGREEMENT BETWEEN THE
GFS AND ECMWF THROUGH THE LATER PERIODS OF THE SHORT TERM AND
FARTHER OUT INTO THE EXTENDED FORECAST PERIOD. A MOIST FAST ZONAL
FLOW WILL DOMINATE THROUGH ABOUT WEDNESDAY CHARACTERIZED BY
CONTINUED UNSETTLED WEATHER WITH AT LEAST CHANCE OF MOUNTAIN SNOW
AND VALLEY RAIN OR SNOW EACH DAY GIVEN THE LIKELIHOOD OF TRANSIENT
DISTURBANCES WHICH WILL BE POORLY TIMED BY THE MODELS IN THIS FAST
FLOW REGIME. STRONGEST WEATHER SYSTEM APPEARS TO MOVE THROUGH
SUNDAY...AND CONFIDENCE IS REASONABLY HIGH FOR THE TIMING OF THIS
SYSTEM SINCE IT IS CLOSER TO THE MODEL INITIALIZATION TIME. A
WIDESPREAD SIGNIFICANT ACCUMULATION SNOW EVENT FEATURING A STRONG
PRECIPITABLE WATER FETCH AND LONG RUNNING ISENTROPIC ASCENT
OVER THE EASTERN ZONES WILL LIKELY NECESSITATE ISSUING SNOW
HIGHLIGHTS FOR AT LEAST THE MOUNTAINS OF IDAHO AND NORTHEAST
WASHINGTON...AND MAYBE THE EAST BASIN RISING TERRAIN AS WELL FOR
SUNDAY. AT THIS TIME WILL NOT CLUTTER AND CONFUSE CURRENT HIGHLIGHT
SUITE BY ADDING ON A WATCH FOR SUNDAYS STORM JUST YET. OVERALL
ZONAL FLOW ASSOCIATED WITH SUNDAYS STORM WILL PROBABLY LEAD TO A
FAIRLY GOOD DOWNSLOPE PRECIPITATION SHADOW IN THE LEE OF THE
CASCADES. MAIN THREAT FOR SIGNIFICANT SNOW WILL BE EAST OF A
RITZVILLE-OMAK LINE WITH THIS SYSTEM.

FURTHER OUT IN THE EXTENDED PERIOD BEYOND WEDNESDAY MODELS ARE
HINTING AT A DRAMATIC COOL DOWN WITH A MEAN TROUGH OVER THE WEST
SUPPORTING A COLD POLAR OR MODIFIED ARCTIC AIR INTRUSION FROM
CANADA. THUS A SHARP COOLING TREND BY THURSDAY WITH DRY NORTHERLY
FLOW REDUCING CHANCES OF FURTHER PRECIPITATION. /FUGAZZI

AVIATION...GENERALLY VFR CONDITIONS WILL PREVAIL THROUGH 21Z EXCEPT
FOR LOCAL LINGERING MOUNTAIN OBSCURATIONS OVER THE IDAHO PANHANDLE
MOUNTAINS. AFTER 21Z A STRONG PACIFIC STORM WILL SPREAD WIDESPREAD
MVFR AND AREAS OF IFR CEILINGS AND VISIBILITIES IN SNOW WITH
EXTENSIVE MOUNTAIN OBSCURATIONS OVER THE ENTIRE REGION AND CONTINUE
THROUGH 12Z SATURDAY. LLWS IS LIKELY OVER THE EASTERN TAF LOCATIONS
AFTER 21Z. /MJF

&&

.PRELIMINARY POINT TEMPS/POPS...
SPOKANE        32  29  36  27  36  32 /  40  90  40  30  80  40
COEUR DALENE  32  29  37  27  37  32 /  40 100  50  40  80  50
PULLMAN        34  29  37  29  38  35 /  30  90  70  30  60  40
LEWISTON       40  35  45  32  46  38 /  20  60  80  40  60  30
COLVILLE       33  28  38  21  35  29 /  50  80  30  30  80  30
SANDPOINT      32  28  37  27  35  32 /  50 100  60  40  80  60
KELLOGG        32  29  34  28  35  31 /  50 100 100  50  80  70
MOSES LAKE     37  34  40  30  41  37 /  20  40  20  20  50  20
WENATCHEE      35  28  38  28  42  34 /  30  60  30  30  30  20
OMAK           32  27  36  22  36  28 /  50  60  20  30  30  20

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...SNOW AND BLOWING SNOW ADVISORY FROM 4 PM THIS AFTERNOON TO 7 AM
     PST SATURDAY ABOVE 2000 FEET FOR IDAHO PALOUSE.

     WINTER STORM WARNING FROM 4 PM THIS AFTERNOON TO 12 PM PST
     SATURDAY FOR CENTRAL PANHANDLE MOUNTAINS...NORTHERN
     PANHANDLE.

     SNOW AND ADVISORY FROM 4 PM THIS AFTERNOON TO 7 AM PST
     SATURDAY FOR COEUR DALENE AREA.

WA...SNOW ADVISORY FROM 4 PM THIS AFTERNOON TO 7 AM
     PST SATURDAY ABOVE 2000 FEET FOR WASHINGTON PALOUSE.

     WINTER STORM WARNING FROM 4 PM THIS AFTERNOON TO 12 PM PST
     SATURDAY FOR NORTHEAST MOUNTAINS.

     SNOW ADVISORY FROM 4 PM THIS AFTERNOON TO 7 AM
     PST SATURDAY FOR SPOKANE AREA.

     WINTER STORM WARNING FROM 1 PM THIS AFTERNOON TO 4 AM PST
     SATURDAY FOR EAST SLOPES NORTHERN CASCADES.

&&

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SPOKANE WA
1051 PM PST THU JAN 4 2007

IDZ002-003-WAZ032>036-038-041-043-044-051400-
COEUR DALENE AREA-IDAHO PALOUSE-
LOWER GARFIELD AND ASOTIN COUNTIES-WASHINGTON PALOUSE-
MOSES LAKE AREA-UPPER COLUMBIA BASIN-SPOKANE AREA-
OKANOGAN HIGHLANDS-WENATCHEE AREA-OKANOGAN VALLEY-
WATERVILLE PLATEAU-
INCLUDING THE CITIES OF...COEUR DALENE...POST FALLS...HAYDEN...
MOSCOW...CLARKSTON...PULLMAN...MOSES LAKE...EPHRATA...OTHELLO...
QUINCY...RITZVILLE...COULEE DAM...ODESSA...ELECTRIC CITY...
WILBUR...GRAND COULEE...COULEE CITY...SPOKANE...REPUBLIC...
INCHELIUM...WENATCHEE...OMAK...OKANOGAN...BREWSTER...BRIDGEPORT...
OROVILLE...WATERVILLE...MANSFIELD
1051 PM PST THU JAN 4 2007

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

.DAY ONE...TONIGHT

NO HAZARDOUS WEATHER IS EXPECTED.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

A SERIES OF PACIFIC STORMS WILL BRING GUSTY WINDS AND SIGNIFICANT
SNOW...ESPECIALLY TO THE HIGHER TERRAIN...TO THE AREA THROUGH THE
WEEKEND AND INTO EARLY NEXT WEEK.

IDZ026-027-WAZ031-051400-
LEWISTON AREA-LEWIS AND SOUTHERN NEZ PERCE COUNTIES-
NORTHEAST BLUE MOUNTAINS-
INCLUDING THE CITIES OF...LEWISTON...KAMIAH...CRAIGMONT...
NEZPERCE...WINCHESTER...ANATONE...PEOLA
1051 PM PST THU JAN 4 2007

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

THE FOLLOWING WATCHES WARNINGS OR ADVISORIES ARE CURRENTLY IN EFFECT
   SNOW ADVISORY IN EFFECT UNTIL 4 AM PST FRIDAY ABOVE2000 FEET.

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

.DAY ONE...TONIGHT

SNOW SHOWERS WILL BRING ACCUMULATING SNOW TO THE HIGHER ELEVATIONS
OF SOUTHEAST WASHINGTON AND THE IDAHO PANHANDLE TONIGHT.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

A SERIES OF PACIFIC STORMS WILL BRING GUSTY WINDS AND SIGNIFICANT
SNOW...ESPECIALLY TO THE HIGHER TERRAIN...TO THE AREA THROUGH THE
WEEKEND AND INTO EARLY NEXT WEEK.

IDZ004-051400-
CENTRAL PANHANDLE MOUNTAINS-
INCLUDING THE CITIES OF...ST. MARIES...KELLOGG...PINEHURST...
OSBURN...WALLACE...MULLAN
1051 PM PST THU JAN 4 2007

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTH IDAHO.

THE FOLLOWING WATCHES WARNINGS OR ADVISORIES ARE CURRENTLY IN EFFECT
   SNOW ADVISORY IN EFFECT UNTIL 4 AM PST FRIDAY ABOVE2000 FEET.
   WINTER STORM WATCH IN EFFECT FROM FRIDAY AFTERNOON THROUGH
     SATURDAY MORNING.

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

.DAY ONE...TONIGHT

SNOW SHOWERS WILL BRING ACCUMULATING SNOW TO THE HIGHER ELEVATIONS
OF SOUTHEAST WASHINGTON AND THE IDAHO PANHANDLE TONIGHT.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

A SERIES OF PACIFIC STORMS WILL BRING GUSTY WINDS AND SIGNIFICANT
SNOW...ESPECIALLY TO THE HIGHER TERRAIN...TO THE AREA THROUGH THE
WEEKEND AND INTO EARLY NEXT WEEK.

IDZ001-WAZ037-051400-
NORTHERN PANHANDLE-NORTHEAST MOUNTAINS-
INCLUDING THE CITIES OF...SANDPOINT...RATHDRUM...BONNERS FERRY...
PRIEST RIVER...COLVILLE...DEER PARK...CHEWELAH...NEWPORT...
KETTLE FALLS
1051 PM PST THU JAN 4 2007

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

THE FOLLOWING WATCHES WARNINGS OR ADVISORIES ARE CURRENTLY IN EFFECT
   WINTER STORM WATCH IN EFFECT FROM FRIDAY AFTERNOON THROUGH
     SATURDAY MORNING.

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

.DAY ONE...TONIGHT

SNOW SHOWERS WILL BRING ACCUMULATING SNOW TO THE HIGHER ELEVATIONS
OF SOUTHEAST WASHINGTON AND THE IDAHO PANHANDLE TONIGHT.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

A SERIES OF PACIFIC STORMS WILL BRING GUSTY WINDS AND SIGNIFICANT
SNOW...ESPECIALLY TO THE HIGHER TERRAIN...TO THE AREA THROUGH THE
WEEKEND AND INTO EARLY NEXT WEEK.

WAZ042-051400-
EAST SLOPES NORTHERN CASCADES-
INCLUDING THE CITIES OF...LEAVENWORTH...MAZAMA...TWISP...WINTHROP
1051 PM PST THU JAN 4 2007

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

THE FOLLOWING WATCHES WARNINGS OR ADVISORIES ARE CURRENTLY IN EFFECT
   WINTER STORM WARNING IN EFFECT FROM 1 PM FRIDAY TO 4 AM PST
     SATURDAY.

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

.DAY ONE...TONIGHT

SNOW SHOWERS WILL BRING ACCUMULATING SNOW TO THE HIGHER ELEVATIONS
OF THE CASCADES TONIGHT.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

A SERIES OF PACIFIC STORMS WILL BRING GUSTY WINDS AND SIGNIFICANT
SNOW...ESPECIALLY TO THE HIGHER TERRAIN...TO THE AREA THROUGH THE
WEEKEND AND INTO EARLY NEXT WEEK.