Alert archive / Washington / Wind Chill Warnings in 2008

Wind Chill Warning 2, NWS Spokane, WA

December 20, 2008Douglas County, Okanogan County, Washington

NWS Spokane, WA issued this wind chill warning at Dec 20, 2008, 6:06 AM PST for Douglas County, Okanogan County, Washington. It was in force for 5 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Dec 20, 2008, 6:06 AM PST (14:06 UTC)
Expired
Dec 20, 2008, 11:00 AM PST
In force
5 hr
Issued by
NWS Spokane, WA

Counties Douglas County, WA, Okanogan County, WA

The radar

The Spokane radar (KOTX), 164 km from the middle of the area, began a volume at 14:05 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

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

The nearest sounding before it

Spokane, WA (KOTX), launched 12:00Z, 2.1 hours before the alert went out and 252 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Spokane, WA at 12:00Z on 2008-12-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Spokane, WA at 12:00Z on 2008-12-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 65 square meters per square second.1939587897117Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
819 m above ground
0-6 km bulk shear
66 kt
0-1 km storm-relative helicity
65 m²/s²
0-3 km storm-relative helicity
128 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
WWUS46 KOTX 201406 AAA
WSWOTX

URGENT - WINTER WEATHER MESSAGE...UPDATED
NATIONAL WEATHER SERVICE SPOKANE WA
606 AM PST SAT DEC 20 2008

...THE NEXT WINTER STORM IS EXPECTED TONIGHT THROUGH LATE SUNDAY
NIGHT...

.A STRONG PACIFIC STORM SYSTEM WILL TRACK ACROSS THE PACIFIC
NORTHWEST TONIGHT THROUGH SUNDAY NIGHT AND SPREAD SNOW ACROSS ALL
PARTS OF THE INLAND NORTHWEST. THE HEAVIEST SNOW WILL GENERALLY
FALL ALONG AND SOUTH OF U.S. HIGHWAY 2 IN THE COLUMBIA BASIN AND
SOUTH OF I-90 FROM SPOKANE INTO THE IDAHO PANHANDLE.

WAZ041-042-044-202215-
/O.UPG.KOTX.WS.A.0012.081221T0600Z-081222T0400Z/
/O.NEW.KOTX.WS.W.10000.081221T0600Z-081222T0400Z/
WENATCHEE AREA-EAST SLOPES NORTHERN CASCADES-WATERVILLE PLATEAU-
INCLUDING THE FOLLOWING LOCATIONS...WENATCHEE...CHELAN...ENTIAT...
CASHMERE...LEAVENWORTH...MAZAMA...TWISP...WINTHROP...STEHEKIN...
CONCONULLY...WATERVILLE...MANSFIELD
606 AM PST SAT DEC 20 2008

...WINTER STORM WARNING IN EFFECT FROM 10 PM THIS EVENING TO 8 PM
PST SUNDAY...

THE NATIONAL WEATHER SERVICE IN SPOKANE HAS ISSUED A WINTER STORM
WARNING FOR HEAVY SNOW...WHICH IS IN EFFECT FROM 10 PM THIS
EVENING TO 8 PM PST SUNDAY. THE WINTER STORM WATCH IS NO LONGER IN
EFFECT.

4 TO 8 INCHES OF SNOWFALL WILL BE POSSIBLE ACROSS THE WENATCHEE
VALLEY AND WATERVILLE PLATEAU WITH HIGHER AMOUNTS IN THE ADJACENT
FOOTHILLS. FOR THE EAST SLOPES...6 TO 10 INCHES ARE EXPECTED IN
THE VALLEYS WITH ONE TO TWO FEET IN THE MOUNTAINS.*

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.

THIS WARNING INCLUDES THE FOLLOWING LOCATIONS...WENATCHEE...
CHELAN...ENTIAT...CASHMERE...LEAVENWORTH...MAZAMA...TWISP...
WINTHROP...STEHEKIN...CONCONULLY...WATERVILLE...MANSFIELD.

$$

WAZ043-202215-
/O.NEW.KOTX.WC.W.0002.081220T1406Z-081220T1900Z/
/O.EXB.KOTX.WS.A.0012.081221T0600Z-081222T0400Z/
OKANOGAN VALLEY-
INCLUDING THE FOLLOWING LOCATIONS...OMAK...OKANOGAN...BREWSTER...
BRIDGEPORT...OROVILLE...NESPELEM
606 AM PST SAT DEC 20 2008

...WIND CHILL WARNING IN EFFECT UNTIL 11 AM PST THIS MORNING...
...WINTER STORM WATCH IN EFFECT FROM THIS EVENING THROUGH SUNDAY
EVENING...

THE NATIONAL WEATHER SERVICE IN SPOKANE HAS ISSUED A WINTER STORM
WATCH...WHICH IS IN EFFECT FROM THIS EVENING THROUGH SUNDAY
EVENING. 

A WIND CHILL WARNING IS IN EFFECT THIS MORNING AS GUSTY NORTH
WINDS AND COLD TEMPERATURES PRODUCE WIND CHILL READINGS OF 20
BELOW ZERO. BITTER COLD AND STRONG WINDS CAN LEAD TO DANGEROUS
WIND CHILLS. UNDER THESE CONDITIONS...FROSTBITE CAN OCCUR ON
EXPOSED SKIN IN 30 MINUTES OR LESS. PETS ARE ALSO SUSPECT TO COLD
WEATHER. KEEP PETS INDOORS OR IN A SAFE SHELTER AS MUCH AS
POSSIBLE. THIS WILL RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA
OR DEATH IF PRECAUTIONS ARE NOT TAKEN.

3 TO 5 INCHES OF SNOWFALL WILL BE POSSIBLE ACROSS THE OKANOGAN 
VALLEY GENERALLY FROM OMAK SOUTHWARD WITH LESSER AMOUNTS TO 
THE NORTH.

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

THIS WATCH INCLUDES THE FOLLOWING LOCATIONS...OMAK...OKANOGAN...
BREWSTER...BRIDGEPORT...OROVILLE...NESPELEM.

$$

WAZ034-035-202215-
/O.CON.KOTX.WS.A.0012.081221T0600Z-081222T1200Z/
MOSES LAKE AREA-UPPER COLUMBIA BASIN-
INCLUDING THE FOLLOWING LOCATIONS...MOSES LAKE...EPHRATA...
OTHELLO...QUINCY...RITZVILLE...GRAND COULEE...ODESSA...WILBUR...
COULEE CITY
606 AM PST SAT DEC 20 2008

...WINTER STORM WATCH REMAINS IN EFFECT FROM THIS EVENING THROUGH
LATE SUNDAY NIGHT...

A WINTER STORM WATCH REMAINS IN EFFECT FROM THIS EVENING THROUGH
LATE SUNDAY NIGHT. 

4 TO 6 INCHES OF SNOWFALL WILL BE POSSIBLE ACROSS THE COLUMBIA
BASIN AND MOSES LAKE AREA SATURDAY NIGHT THROUGH SUNDAY NIGHT. THE
HEAVIEST AMOUNTS WILL LIKELY FALL ALONG THE I-90 CORRIDOR.

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

THIS WATCH INCLUDES THE FOLLOWING LOCATIONS...RITZVILLE...GRAND
COULEE...ODESSA...WILBUR...COULEE CITY...MOSES LAKE...EPHRATA...
OTHELLO...QUINCY.

$$

IDZ002-WAZ036-202215-
/O.CON.KOTX.WS.A.0012.081221T1200Z-081222T1200Z/
COEUR DALENE AREA-SPOKANE AREA-
INCLUDING THE FOLLOWING LOCATIONS...COEUR DALENE...POST FALLS...
HAYDEN...SPOKANE...CHENEY...DAVENPORT...ROCKFORD
606 AM PST SAT DEC 20 2008

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

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

5 TO 9 INCHES OF SNOWFALL WILL BE POSSIBLE ACROSS THE SPOKANE AND
COEUR DALENE AREAS. THE HEAVIEST SNOWFALL IS EXPECTED SUNDAY 
MORNING THEN AGAIN SUNDAY EVENING INTO SUNDAY NIGHT.

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

THIS WATCH INCLUDES THE FOLLOWING LOCATIONS...COEUR DALENE...
POST FALLS...HAYDEN...SPOKANE...CHENEY...DAVENPORT...ROCKFORD.

$$

IDZ003-004-WAZ031>033-202215-
/O.CON.KOTX.WS.A.0012.081221T1200Z-081222T1800Z/
IDAHO PALOUSE-CENTRAL PANHANDLE MOUNTAINS-
NORTHEAST BLUE MOUNTAINS-LOWER GARFIELD AND ASOTIN COUNTIES-
WASHINGTON PALOUSE-
INCLUDING THE FOLLOWING LOCATIONS...MOSCOW...PLUMMER...POTLATCH...
GENESEE...KELLOGG...ST MARIES...PINEHURST...OSBURN...WALLACE...
MULLAN...ANATONE...PEOLA...CLARKSTON...POMEROY...PULLMAN...
COLFAX...ROSALIA...LA CROSSE
606 AM PST SAT DEC 20 2008

...WINTER STORM WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH
MONDAY MORNING...

A WINTER STORM WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH
MONDAY MORNING.

5 TO 9 INCHES OF SNOWFALL WILL BE POSSIBLE ACROSS THE PALOUSE...
LOWER GARFIELD COUNTY ESPECIALLY POMEROY...AS WELL AS IN THE
VALLEYS OF THE CENTRAL IDAHO PANHANDLE. FOR THE MOUNTAINS...10 TO
15 INCHES OF SNOW ARE POSSIBLE SUNDAY THROUGH MONDAY MORNING.

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

THIS WATCH INCLUDES THE FOLLOWING LOCATIONS...MOSCOW...PLUMMER...
POTLATCH...GENESEE...KELLOGG...ST MARIES...PINEHURST...OSBURN...
WALLACE...MULLAN...ANATONE...PEOLA...PULLMAN...COLFAX...ROSALIA...
LA CROSSE...CLARKSTON...POMEROY.

$$
2 follow-up statements
000 
WWUS46 KOTX 201749
WSWOTX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SPOKANE WA
949 AM PST SAT DEC 20 2008

...THE NEXT WINTER STORM IS EXPECTED SATURDAY NIGHT INTO SUNDAY...

.A STRONG PACIFIC STORM SYSTEM WILL TRACK ACROSS THE PACIFIC
NORTHWEST SATURDAY NIGHT THROUGH SUNDAY NIGHT SPREADING SNOW
ACROSS ALL PARTS OF THE INLAND NORTHWEST. THE HEAVIEST SNOW WILL
GENERALLY FALL ALONG AND SOUTH OF U.S. HIGHWAY 2 IN THE COLUMBIA
BASIN AND SOUTH OF I-90 FROM SPOKANE INTO THE IDAHO PANHANDLE.

WAZ041-042-044-210200-
/O.UPG.KOTX.WS.A.0012.081221T0600Z-081222T0400Z/
/O.NEW.KOTX.WS.W.0011.081221T0600Z-081222T0400Z/
WENATCHEE AREA-EAST SLOPES NORTHERN CASCADES-WATERVILLE PLATEAU-
INCLUDING THE FOLLOWING LOCATIONS...WENATCHEE...CHELAN...ENTIAT...
CASHMERE...LEAVENWORTH...MAZAMA...TWISP...WINTHROP...STEHEKIN...
CONCONULLY...WATERVILLE...MANSFIELD
949 AM PST SAT DEC 20 2008

...WINTER STORM WARNING IN EFFECT FROM 10 PM THIS EVENING TO 8 PM
PST SUNDAY...

THE NATIONAL WEATHER SERVICE IN SPOKANE HAS ISSUED A WINTER STORM
WARNING...WHICH IS IN EFFECT FROM 10 PM THIS EVENING TO 8 PM PST
SUNDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. 

5 TO 9 INCHES OF SNOWFALL WILL BE POSSIBLE ACROSS THE WENATCHEE
VALLEY AND WATERVILLE PLATEAU WITH HIGHER AMOUNTS IN THE ADJACENT
FOOTHILLS. FOR THE EAST SLOPES...6 TO 10 INCHES ARE EXPECTED IN
THE VALLEYS WITH UP TO A FOOT AND A HALF IN THE MOUNTAINS.

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.

THIS WARNING INCLUDES THE FOLLOWING LOCATIONS...WENATCHEE...
CHELAN...ENTIAT...CASHMERE...LEAVENWORTH...MAZAMA...TWISP...
WINTHROP...STEHEKIN...CONCONULLY...WATERVILLE...MANSFIELD.

$$

WAZ043-210200-
/O.NEW.KOTX.WC.W.0002.081220T1749Z-081220T1900Z/
/O.EXB.KOTX.WS.A.0012.081221T0600Z-081222T0400Z/
OKANOGAN VALLEY-
INCLUDING THE FOLLOWING LOCATIONS...OMAK...OKANOGAN...BREWSTER...
BRIDGEPORT...OROVILLE...NESPELEM
949 AM PST SAT DEC 20 2008

...WIND CHILL WARNING IN EFFECT UNTIL 11 AM PST THIS MORNING...
...WINTER STORM WATCH IN EFFECT FROM THIS EVENING THROUGH SUNDAY
EVENING...

THE NATIONAL WEATHER SERVICE IN SPOKANE HAS ISSUED A WIND CHILL
WARNING...WHICH IS IN EFFECT UNTIL 11 AM PST THIS MORNING. A
WINTER STORM WATCH HAS ALSO BEEN ISSUED. THIS WINTER STORM WATCH
IS IN EFFECT FROM THIS EVENING THROUGH SUNDAY EVENING. 

THE COMBINATION OF SUB-ZERO TEMPERATURES AND BRISK NORTH WINDS
WILL RESULT IN WIND CHILL READINGS AROUND 20 BELOW ZERO THIS
MORNING. WINDS AND TEMPERATURES WILL MODERATE BY LATE THIS
MORNING RESULTING IN RELATIVELY WARMER WIND CHILL VALUES. 

SNOWFALL ACCUMULATIONS OF 2 TO 5 INCHES ARE EXPECTED TO FALL OVER
THE OKANOGAN VALLEYS BETWEEN THIS EVENING AND SUNDAY EVENING.
HEAVIER AMOUNTS ARE EXPECTED SOUTH OF THE OKANOGAN
VALLEY...HOWEVER A SMALL NORTHWARD DEVIATION IN THE STORM TRACK
COULD BRING EVEN HEAVIER AMOUNTS TO THE AREA. 

A WIND CHILL WARNING MEANS WIND CHILL VALUES OF 20 BELOW OR
COLDER ARE LIKELY. THE COMBINATION OF THE BITTER COLD AND STRONG
WINDS CAN FREEZE EXPOSED SKIN IN A MATTER OF MINUTES...SO DRESS
WARMLY. LAYERS OF PROTECTIVE CLOTHING ARE MORE EFFECTIVE THAN A
SINGLE LAYER OF THICK CLOTHING. 

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

THIS WARNING INCLUDES THE FOLLOWING LOCATIONS...OMAK...OKANOGAN...
BREWSTER...BRIDGEPORT...OROVILLE...NESPELEM.

$$

WAZ034-035-210200-
/O.CON.KOTX.WS.A.0012.081221T0600Z-081222T1200Z/
MOSES LAKE AREA-UPPER COLUMBIA BASIN-
INCLUDING THE FOLLOWING LOCATIONS...MOSES LAKE...EPHRATA...
OTHELLO...QUINCY...RITZVILLE...GRAND COULEE...ODESSA...WILBUR...
COULEE CITY
949 AM PST SAT DEC 20 2008

...WINTER STORM WATCH REMAINS IN EFFECT FROM THIS EVENING THROUGH
LATE SUNDAY NIGHT...

A WINTER STORM WATCH REMAINS IN EFFECT FROM THIS EVENING THROUGH
LATE SUNDAY NIGHT. 

5 TO 9 INCHES OF SNOWFALL WILL BE POSSIBLE ACROSS THE COLUMBIA
BASIN AND MOSES LAKE AREA TONIGHT THROUGH SUNDAY NIGHT.
THE HEAVIEST AMOUNTS WILL LIKELY FALL ALONG THE I-90 CORRIDOR.

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

THIS WATCH INCLUDES THE FOLLOWING LOCATIONS...RITZVILLE...GRAND
COULEE...ODESSA...WILBUR...COULEE CITY...MOSES LAKE...EPHRATA...
OTHELLO...QUINCY.

$$

IDZ002-WAZ036-210200-
/O.CON.KOTX.WS.A.0012.081221T1200Z-081222T1200Z/
COEUR DALENE AREA-SPOKANE AREA-
INCLUDING THE FOLLOWING LOCATIONS...COEUR DALENE...POST FALLS...
HAYDEN...SPOKANE...CHENEY...DAVENPORT...ROCKFORD
949 AM PST SAT DEC 20 2008

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

5 TO 9 INCHES OF SNOWFALL WILL BE POSSIBLE ACROSS THE SPOKANE AND
COEUR DALENE AREAS FROM LATE TONIGHT THROUGH SUNDAY NIGHT. THE
HEAVIEST AMOUNTS WILL GENERALLY FALL ALONG AND SOUTH OF I-90 WITH
LESSER AMOUNTS TO THE NORTH.

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

THIS WATCH INCLUDES THE FOLLOWING LOCATIONS...COEUR DALENE...
POST FALLS...HAYDEN...SPOKANE...CHENEY...DAVENPORT...ROCKFORD.


$$

IDZ003-004-WAZ031>033-210200-
/O.CON.KOTX.WS.A.0012.081221T1200Z-081222T1800Z/
IDAHO PALOUSE-CENTRAL PANHANDLE MOUNTAINS-
NORTHEAST BLUE MOUNTAINS-LOWER GARFIELD AND ASOTIN COUNTIES-
WASHINGTON PALOUSE-
INCLUDING THE FOLLOWING LOCATIONS...MOSCOW...PLUMMER...POTLATCH...
GENESEE...KELLOGG...ST MARIES...PINEHURST...OSBURN...WALLACE...
MULLAN...ANATONE...PEOLA...CLARKSTON...POMEROY...PULLMAN...
COLFAX...ROSALIA...LA CROSSE
949 AM PST SAT DEC 20 2008

...WINTER STORM WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH
MONDAY MORNING...

A WINTER STORM WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH
MONDAY MORNING. 

7 TO 11 INCHES OF SNOWFALL WILL BE POSSIBLE ACROSS THE PALOUSE...
LOWER GARFIELD COUNTY ESPECIALLY POMEROY...AS WELL AS IN THE
VALLEYS OF THE CENTRAL IDAHO PANHANDLE FROM LATE TONIGHT THROUGH
MONDAY MORNING.  FOR THE MOUNTAINS...10 TO 15 INCHES OF SNOW ARE
POSSIBLE SUNDAY THROUGH MONDAY MORNING.

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

THIS WATCH INCLUDES THE FOLLOWING LOCATIONS...MOSCOW...PLUMMER...
POTLATCH...GENESEE...KELLOGG...ST MARIES...PINEHURST...OSBURN...
WALLACE...MULLAN...ANATONE...PEOLA...PULLMAN...COLFAX...ROSALIA...
LA CROSSE...CLARKSTON...POMEROY.


$$
000 
WWUS46 KOTX 201852
WSWOTX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SPOKANE WA
1052 AM PST SAT DEC 20 2008

...THE NEXT WINTER STORM IS EXPECTED SATURDAY NIGHT INTO SUNDAY...

.A STRONG PACIFIC STORM SYSTEM WILL TRACK ACROSS THE PACIFIC
NORTHWEST SATURDAY NIGHT THROUGH SUNDAY NIGHT SPREADING SNOW
ACROSS ALL PARTS OF THE INLAND NORTHWEST. THE HEAVIEST SNOW WILL
GENERALLY FALL ALONG AND SOUTH OF U.S. HIGHWAY 2 IN THE COLUMBIA
BASIN AND SOUTH OF I-90 FROM SPOKANE INTO THE IDAHO PANHANDLE.

WAZ043-210300-
/O.EXP.KOTX.WC.W.0002.000000T0000Z-081220T1900Z/
/O.CON.KOTX.WS.A.0012.081221T0600Z-081222T0400Z/
OKANOGAN VALLEY-
INCLUDING THE FOLLOWING LOCATIONS...OMAK...OKANOGAN...BREWSTER...
BRIDGEPORT...OROVILLE...NESPELEM
1052 AM PST SAT DEC 20 2008

...WINTER STORM WATCH REMAINS IN EFFECT FROM 10 PM PST THIS
EVENING THROUGH SUNDAY EVENING...
...WIND CHILL WARNING WILL EXPIRE AT 11 AM PST THIS MORNING...

THE WIND CHILL WARNING WILL EXPIRE AT 11 AM PST THIS MORNING. A
WINTER STORM WATCH REMAINS IN EFFECT FROM 10 PM PST THIS EVENING
THROUGH SUNDAY EVENING. 

TEMPERATURES HAVE RISEN TO ABOVE ZERO AND WINDS WILL CONTINUE TO
DIMINISH THIS MORNING RESULTING IN RELATIVELY WARMER WIND CHILL
VALUES.

SNOWFALL ACCUMULATIONS OF 2 TO 5 INCHES ARE EXPECTED TO FALL OVER
THE OKANOGAN VALLEYS BETWEEN THIS EVENING AND SUNDAY EVENING.
HEAVIER AMOUNTS ARE EXPECTED SOUTH OF THE OKANOGAN VALLEY...
HOWEVER A SMALL NORTHWARD DEVIATION IN THE STORM TRACK COULD BRING
EVEN HEAVIER AMOUNTS TO THE AREA.

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

$$

WAZ041-042-044-210300-
/O.CON.KOTX.WS.W.0011.081221T0600Z-081222T0400Z/
WENATCHEE AREA-EAST SLOPES NORTHERN CASCADES-WATERVILLE PLATEAU-
INCLUDING THE FOLLOWING LOCATIONS...WENATCHEE...CHELAN...ENTIAT...
CASHMERE...LEAVENWORTH...MAZAMA...TWISP...WINTHROP...STEHEKIN...
CONCONULLY...WATERVILLE...MANSFIELD
1052 AM PST SAT DEC 20 2008

...WINTER STORM WARNING REMAINS IN EFFECT FROM 10 PM THIS EVENING
TO 8 PM PST SUNDAY...

A WINTER STORM WARNING REMAINS IN EFFECT FROM 10 PM THIS EVENING
TO 8 PM PST SUNDAY. 

5 TO 9 INCHES OF SNOWFALL WILL BE POSSIBLE ACROSS THE WENATCHEE
VALLEY AND WATERVILLE PLATEAU WITH HIGHER AMOUNTS IN THE ADJACENT
FOOTHILLS. FOR THE EAST SLOPES...6 TO 10 INCHES ARE EXPECTED IN
THE VALLEYS WITH UP TO A FOOT AND A HALF IN THE MOUNTAINS.

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.

THIS WARNING INCLUDES THE FOLLOWING LOCATIONS...WENATCHEE...
CHELAN...ENTIAT...CASHMERE...LEAVENWORTH...MAZAMA...TWISP...
WINTHROP...STEHEKIN...CONCONULLY...WATERVILLE...MANSFIELD.

$$

WAZ034-035-210300-
/O.CON.KOTX.WS.A.0012.081221T0600Z-081222T1200Z/
MOSES LAKE AREA-UPPER COLUMBIA BASIN-
INCLUDING THE FOLLOWING LOCATIONS...MOSES LAKE...EPHRATA...
OTHELLO...QUINCY...RITZVILLE...GRAND COULEE...ODESSA...WILBUR...
COULEE CITY
1052 AM PST SAT DEC 20 2008

...WINTER STORM WATCH REMAINS IN EFFECT FROM 10 PM PST THIS
EVENING THROUGH LATE SUNDAY NIGHT...

A WINTER STORM WATCH REMAINS IN EFFECT FROM 10 PM PST THIS
EVENING THROUGH LATE SUNDAY NIGHT. 

5 TO 9 INCHES OF SNOWFALL WILL BE POSSIBLE ACROSS THE COLUMBIA
BASIN AND MOSES LAKE AREA TONIGHT THROUGH SUNDAY NIGHT. THE
HEAVIEST AMOUNTS WILL LIKELY FALL ALONG THE I-90 CORRIDOR.

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

THIS WATCH INCLUDES THE FOLLOWING LOCATIONS...RITZVILLE...GRAND
COULEE...ODESSA...WILBUR...COULEE CITY...MOSES LAKE...EPHRATA...
OTHELLO...QUINCY.

$$

IDZ002-WAZ036-210300-
/O.CON.KOTX.WS.A.0012.081221T1200Z-081222T1200Z/
COEUR DALENE AREA-SPOKANE AREA-
INCLUDING THE FOLLOWING LOCATIONS...COEUR DALENE...POST FALLS...
HAYDEN...SPOKANE...CHENEY...DAVENPORT...ROCKFORD
1052 AM PST SAT DEC 20 2008

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

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

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

THIS WATCH INCLUDES THE FOLLOWING LOCATIONS...COEUR DALENE...
POST FALLS...HAYDEN...SPOKANE...CHENEY...DAVENPORT...ROCKFORD.

$$

IDZ003-004-WAZ031>033-210300-
/O.CON.KOTX.WS.A.0012.081221T1200Z-081222T1800Z/
IDAHO PALOUSE-CENTRAL PANHANDLE MOUNTAINS-
NORTHEAST BLUE MOUNTAINS-LOWER GARFIELD AND ASOTIN COUNTIES-
WASHINGTON PALOUSE-
INCLUDING THE FOLLOWING LOCATIONS...MOSCOW...PLUMMER...POTLATCH...
GENESEE...KELLOGG...ST MARIES...PINEHURST...OSBURN...WALLACE...
MULLAN...ANATONE...PEOLA...CLARKSTON...POMEROY...PULLMAN...
COLFAX...ROSALIA...LA CROSSE
1052 AM PST SAT DEC 20 2008

...WINTER STORM WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH
MONDAY MORNING...

A WINTER STORM WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH
MONDAY MORNING. 

7 TO 11 INCHES OF SNOWFALL WILL BE POSSIBLE ACROSS THE PALOUSE...
LOWER GARFIELD COUNTY ESPECIALLY POMEROY...AS WELL AS IN THE
VALLEYS OF THE CENTRAL IDAHO PANHANDLE FROM LATE TONIGHT THROUGH
MONDAY MORNING.  FOR THE MOUNTAINS...10 TO 15 INCHES OF SNOW ARE
POSSIBLE SUNDAY THROUGH MONDAY MORNING.

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

THIS WATCH INCLUDES THE FOLLOWING LOCATIONS...MOSCOW...PLUMMER...
POTLATCH...GENESEE...KELLOGG...ST MARIES...PINEHURST...OSBURN...
WALLACE...MULLAN...ANATONE...PEOLA...PULLMAN...COLFAX...ROSALIA...
LA CROSSE...CLARKSTON...POMEROY.

$$

The office that day

Everything else NWS Spokane, WA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Dec 20, 3:16 AM PSTWinter Storm WarningOTXAsotin, Chelan, Douglas, Garfield, Grant, Pend Oreille and 2 more9 days
Dec 20, 9:49 AM PSTWinter Storm WarningOTXAsotin, Chelan, Douglas, Ferry, Garfield, Grant and 4 more54 hr
Dec 20, 2:41 PM PSTWinter Weather AdvisoryOTXAdams, Douglas, Ferry, Grant, Lincoln, Okanogan and 4 more43 hr

Nearby

Wind Chill Warnings in Washington, 2008Every wind chill warning in 2008

Sources

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