Alert archive / Idaho / Winter Storm Warnings in 2009

Winter Storm Warning 24, NWS Spokane, WA

March 28, 20096 counties in Idaho; 4 counties in Washington

NWS Spokane, WA issued this winter storm warning at Mar 28, 2009, 3:25 AM PDT for 6 counties in Idaho; 4 counties in Washington. It took effect at Mar 28, 2009, 5:00 PM PDT. It was in force for 26 hr. 9 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Mar 28, 2009, 3:25 AM PDT (10:25 UTC)
In effect from
Mar 28, 2009, 5:00 PM PDT
Expired
Mar 29, 2009, 6:53 PM PDT
In force
26 hr
Issued by
NWS Spokane, WA

Counties Benewah County, ID, Kootenai County, ID, Latah County, ID, Lewis County, ID, Nez Perce County, ID, Shoshone County, ID, Asotin County, WA, Garfield County, WA, Spokane County, WA, Whitman County, WA

The radar

The Spokane radar (KOTX), 106 km from the middle of the area, began a volume at 10:22 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.

What was reported inside it

TimeReportWhereRemark
Mar 29, 6:40 AM PDTHEAVY SNOW 4Garfield, WASPOTTER GARFIELD 2. ELEVATION 2500 FEET.
Mar 29, 6:45 AM PDTSNOW 36 E Moscow, IDSPOTTER LATAH 13. ELEVATION 2582 FEET.
Mar 29, 6:50 AM PDTSNOW 2.51 Se Pullman, WASPOTTER WHITMAN 1. ELEVATION 2397 FEET.
Mar 29, 8:10 AM PDTHEAVY SLEET 84 Se Gifford, IDSPOTTER NEZPERCE 25. ELEVATION 3313 FEET. 2 TO 3 FOOT DRIFTS AND STILL SNOWING.
Mar 29, 8:10 AM PDTSNOW 23 N Hauser, IDSPOTTER KOOTENAI 65. ELOEVATION 2600 FEET.
Mar 29, 8:10 AM PDTHEAVY SNOW 84 Se Gifford, IDSPOTTER NEZPERCE 25. ELEVATION 3313 FEET. 2 TO 3 FOOT DRIFTS AND STILL SNOWING.
Mar 29, 9:00 AM PDTSNOW 3Pullman, WASPOTTER WHITMAN 54. ELEVATION 2526 FEET.
Mar 29, 9:35 AM PDTHEAVY SNOW 6.3Winchester, IDSPOTTER LEWIS 2. ELEVATION 3980 FEET.
Mar 29, 11:16 AM PDTHEAVY SNOW 6.3Palouse, WASTORM TOTAL. SPOTTER WHITMAN 83. ELEVATION 2565 FEET.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Spokane, WA (KOTX), launched 00:00Z, 10.4 hours before the alert went out and 98 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 00:00Z on 2009-03-28Temperature 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°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Spokane, WA at 00:00Z on 2009-03-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 90 square meters per square second.1939587897117136Sfc1 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
1472 m above ground
0-6 km bulk shear
50 kt
0-1 km storm-relative helicity
90 m²/s²
0-3 km storm-relative helicity
156 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 281025
WSWOTX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SPOKANE WA
325 AM PDT SAT MAR 28 2009

...SIGNIFICANT LATE SEASON SNOWS EXPECTED SATURDAY NIGHT AND
SUNDAY...

IDZ004-281830-
/O.UPG.KOTX.WS.A.0005.090329T0000Z-090330T0000Z/
/O.NEW.KOTX.WS.W.0024.090329T0000Z-090330T0000Z/
CENTRAL PANHANDLE MOUNTAINS-
INCLUDING THE FOLLOWING LOCATIONS...OSBURN...WALLACE...MULLAN...
DOBSON PASS...LOOKOUT PASS
325 AM PDT SAT MAR 28 2009

...WINTER STORM WARNING IN EFFECT FROM 5 PM THIS AFTERNOON TO
5 PM PDT SUNDAY ABOVE 3000 FEET...

THE NATIONAL WEATHER SERVICE IN SPOKANE HAS ISSUED A WINTER STORM
WARNING FOR HEAVY SNOW AND BLOWING SNOW ABOVE 3000 FEET...WHICH
IS IN EFFECT FROM 5 PM THIS AFTERNOON TO 5 PM PDT SUNDAY. THE
WINTER STORM WATCH IS NO LONGER IN EFFECT.

SNOW ACCUMULATIONS OF 8 TO 15 INCHES WILL BE POSSIBLE IN THE
MOUNTAINS OF THE CENTRAL IDAHO PANHANDLE...WITH 4 TO 8 INCHES
POSSIBLE IN THE VALLEYS ABOVE 3000 FEET. BELOW 3000 FEET
PRECIPITATION WILL BEGIN AS RAIN TODAY...AND CHANGE TO SNOW
TONIGHT WITH 1 TO 3 INCHES POSSIBLE BY SUNDAY MORNING. IN
ADDITION...STRENGTHENING AND GUSTY WEST WINDS WILL LIKELY PRODUCE
BLOWING SNOW INTO SUNDAY FOR THE MOUNTAINS. TRAVELERS ALONG
INTERSTATE 90 FROM OSBURN TO THE MONTANA BORDER WILL BE
SIGNIFICANTLY AFFECTED BY THIS SNOW. ALLOW EXTRA TIME FOR TRAVEL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SIGNIFICANT AMOUNTS
OF SNOW ARE EXPECTED OR OCCURRING. SNOW ACCUMULATIONS WILL MAKE
TRAVEL VERY HAZARDOUS OR IMPOSSIBLE.

&&

THIS INCLUDES THE FOLLOWING LOCATIONS...OSBURN...WALLACE...
MULLAN...DOBSON PASS...LOOKOUT PASS.

$$

IDZ027-WAZ031-281830-
/O.NEW.KOTX.WS.A.0006.090329T0000Z-090330T0000Z/
LEWIS AND SOUTHERN NEZ PERCE COUNTIES-NORTHEAST BLUE MOUNTAINS-
INCLUDING THE FOLLOWING LOCATIONS...CRAIGMONT...NEZPERCE...
WINCHESTER...SOLDIERS MEADOW ROAD...ANATONE...PEOLA...
MOUNTAIN ROAD...CLOVERLAND ROAD
325 AM PDT SAT MAR 28 2009

...WINTER STORM WATCH IN EFFECT FROM THIS AFTERNOON THROUGH
SUNDAY AFTERNOON...

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

A STRONG LATE SEASON PACIFIC STORM SYSTEM WILL PASS THROUGH THE
REGION TONIGHT THROUGH SUNDAY. EIGHT TO 12 INCHES OF SNOW IN THE
BLUE MOUNTAINS AND 4 TO 8 INCHES OF SNOW ON THE CAMAS PRAIRIE IS
POSSIBLE WITH THIS STORM BY SUNDAY EVENING. THE HEAVIEST SNOW
ACCUMULATIONS WILL OCCUR ABOVE 3000 FEET ELEVATION.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

THIS INCLUDES THE FOLLOWING LOCATIONS...CRAIGMONT...NEZPERCE...
WINCHESTER...SOLDIERS MEADOW ROAD...ANATONE...PEOLA...MOUNTAIN
ROAD...CLOVERLAND ROAD.

$$
7 follow-up statements
000 
WWUS46 KOTX 281629 AAB
WSWOTX

URGENT - WINTER WEATHER MESSAGE...UPDATED
NATIONAL WEATHER SERVICE SPOKANE WA
929 AM PDT SAT MAR 28 2009

...SIGNIFICANT LATE SEASON SNOWS EXPECTED SATURDAY NIGHT AND
SUNDAY...

WAZ031-290030-
/O.UPG.KOTX.WS.A.0006.090329T0000Z-090330T0000Z/
/O.EXA.KOTX.WS.W.0024.090329T0000Z-090330T0000Z/
NORTHEAST BLUE MOUNTAINS-
INCLUDING THE CITIES OF...ANATONE...PEOLA
929 AM PDT SAT MAR 28 2009

...WINTER STORM WARNING IN EFFECT FROM 5 PM THIS AFTERNOON TO
5 PM PDT SUNDAY...

THE NATIONAL WEATHER SERVICE IN SPOKANE HAS ISSUED A WINTER STORM
WARNING FOR SNOW...WHICH IS IN EFFECT FROM 5 PM THIS AFTERNOON TO
5 PM PDT SUNDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT.

A STRONG LATE SEASON PACIFIC STORM SYSTEM WILL PASS THROUGH THE
REGION TONIGHT THROUGH SUNDAY. NINE TO 14 INCHES OF SNOW IN THE
BLUE MOUNTAINS ABOVE 4500 FEET IS EXPECTED WITH THIS STORM BY
SUNDAY EVENING. 

THIS INCLUDES THE FOLLOWING LOCATIONS...ANATONE...PEOLA...MOUNTAIN
ROAD...CLOVERLAND ROAD.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

$$

IDZ004-290030-
/O.CON.KOTX.WS.W.0024.090329T0000Z-090330T0000Z/
CENTRAL PANHANDLE MOUNTAINS-
INCLUDING THE CITIES OF...KELLOGG...ST MARIES...PINEHURST...
OSBURN...WALLACE...MULLAN
929 AM PDT SAT MAR 28 2009

...WINTER STORM WARNING REMAINS IN EFFECT FROM 5 PM THIS
AFTERNOON TO 5 PM PDT SUNDAY...

A WINTER STORM WARNING REMAINS IN EFFECT FROM 5 PM THIS AFTERNOON
TO 5 PM PDT SUNDAY. 

SNOW ACCUMULATIONS OF 8 TO 15 INCHES WILL BE POSSIBLE IN THE
MOUNTAINS OF THE CENTRAL IDAHO PANHANDLE...WITH 4 TO 8 INCHES
POSSIBLE IN THE VALLEYS ABOVE 2500 FEET. BELOW 2500 FEET
PRECIPITATION WILL BEGIN AS AS SNOW AND RAIN MIX TODAY...AND
CHANGE TO SNOW TONIGHT WITH 2 TO 3 INCHES POSSIBLE BY SUNDAY
MORNING. IN ADDITION...STRENGTHENING AND GUSTY WEST WINDS WILL
LIKELY PRODUCE BLOWING SNOW INTO SUNDAY FOR THE MOUNTAINS.
TRAVELERS ALONG INTERSTATE 90 FROM OSBURN TO THE MONTANA BORDER
WILL BE SIGNIFICANTLY AFFECTED BY THIS SNOW. ALLOW EXTRA TIME FOR
TRAVEL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SIGNIFICANT AMOUNTS
OF SNOW ARE EXPECTED OR OCCURRING. SNOW ACCUMULATIONS WILL MAKE
TRAVEL VERY HAZARDOUS OR IMPOSSIBLE.

&&

THIS INCLUDES THE FOLLOWING LOCATIONS...OSBURN...WALLACE...
MULLAN...DOBSON PASS...LOOKOUT PASS.

$$

IDZ001-002-WAZ036-037-290030-
/O.NEW.KOTX.WW.Y.0028.090329T0000Z-090329T1800Z/
NORTHERN PANHANDLE-COEUR DALENE AREA-SPOKANE AREA-
NORTHEAST MOUNTAINS-
INCLUDING THE CITIES OF...SANDPOINT...RATHDRUM...BONNERS FERRY...
PRIEST RIVER...EASTPORT...COEUR DALENE...POST FALLS...HAYDEN...
WORLEY...SPOKANE...CHENEY...DAVENPORT...ROCKFORD...COLVILLE...
DEER PARK...CHEWELAH...NEWPORT...KETTLE FALLS
929 AM PDT SAT MAR 28 2009

...WINTER WEATHER ADVISORY IN EFFECT FROM 5 PM THIS AFTERNOON TO
11 AM PDT SUNDAY...

THE NATIONAL WEATHER SERVICE IN SPOKANE HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT FROM 5 PM THIS
AFTERNOON TO 11 AM PDT SUNDAY.

SNOW ACCUMULATIONS OF 4 TO 7 INCHES WILL BE LIKELY IN THE MOUNTAINS
OF NORTHEAST WASHINGTON AND FAR NORTH IDAHO...WITH 2 TO 3 INCHES
EXPECTED IN THE VALLEYS. THE PRECIPITATION WILL BEGIN AS A SNOW
AND RAIN MIX THIS AFTERNOON...AND CHANGE TO SNOW SHORTLY
THEREAFTER WITH 2 TO 3 INCHES POSSIBLE BY SUNDAY MORNING. THE
HEAVIEST ACCUMULATIONS WILL BE SOUTH OF A LINE FROM COLVILLE TO
SANDPOINT. IN ADDITION...STRENGTHENING AND GUSTY WEST WINDS WILL
LIKELY PRODUCE BLOWING SNOW INTO SUNDAY FOR THE MOUNTAINS.
TRAVELERS ALONG INTERSTATE 90 FROM OSBURN TO THE MONTANA BORDER
WILL BE SIGNIFICANTLY AFFECTED BY THIS SNOW. ALLOW EXTRA TIME FOR
TRAVEL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW...SLEET...OR
FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR
SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE
DRIVING.

&&

$$

IDZ027-290030-
/O.CON.KOTX.WS.A.0006.090329T0000Z-090330T0000Z/
LEWIS AND SOUTHERN NEZ PERCE COUNTIES-
INCLUDING THE CITIES OF...KAMIAH...CRAIGMONT...NEZPERCE...
WINCHESTER
929 AM PDT SAT MAR 28 2009

...WINTER STORM WATCH REMAINS IN EFFECT FROM 5 PM PDT THIS
AFTERNOON THROUGH SUNDAY AFTERNOON...

A WINTER STORM WATCH REMAINS IN EFFECT FROM 5 PM PDT THIS
AFTERNOON THROUGH SUNDAY AFTERNOON. 

A STRONG LATE SEASON PACIFIC STORM SYSTEM WILL PASS THROUGH THE
REGION TONIGHT THROUGH SUNDAY. FOUR TO 8 INCHES OF SNOW ABOVE 3500
FEET ON THE CAMAS PRAIRIE IS POSSIBLE WITH THIS STORM BY SUNDAY
EVENING. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

THIS INCLUDES THE FOLLOWING LOCATIONS...CRAIGMONT...NEZPERCE...
WINCHESTER...SOLDIERS MEADOW ROAD...ANATONE...PEOLA...MOUNTAIN
ROAD...CLOVERLAND ROAD.

$$
000 
WWUS46 KOTX 282212 AAB
WSWOTX

URGENT - WINTER WEATHER MESSAGE...UPDATED
NATIONAL WEATHER SERVICE SPOKANE WA
312 PM PDT SAT MAR 28 2009

...SIGNIFICANT LATE SEASON SNOWS AND GUSTY WINDS EXPECTED AS A
STRONG LATE SEASON PACIFIC STORM SYSTEM PASSES THROUGH THE REGION
TONIGHT AND SUNDAY...

IDZ027-290500-
/O.UPG.KOTX.WS.A.0006.090329T0000Z-090330T0000Z/
/O.EXB.KOTX.WS.W.0024.090329T0600Z-090330T0000Z/
LEWIS AND SOUTHERN NEZ PERCE COUNTIES-
INCLUDING THE CITIES OF...KAMIAH...CRAIGMONT...NEZPERCE...
WINCHESTER
312 PM PDT SAT MAR 28 2009

...WINTER STORM WARNING IN EFFECT FROM 11 PM THIS EVENING TO 5 PM
PDT SUNDAY ABOVE 3500 FEET...

THE NATIONAL WEATHER SERVICE IN SPOKANE HAS ISSUED A WINTER STORM
WARNING FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT FROM 11 PM
THIS EVENING TO 5 PM PDT SUNDAY. THE WINTER STORM WATCH IS NO
LONGER IN EFFECT.

SNOW ACCUMULATIONS OF 4 TO 7 INCHES ABOVE 3500 FEET ON THE CAMAS
PRAIRIE IS EXPECTED OVERNIGHT AND SUNDAY. LESSER AMOUNTS AROUND
AN INCH WILL BE LIKELY DOWN TO 2000 FEET. IN ADDITION...GUSTY
WEST WINDS OVERNIGHT WILL INCREASE TO 20 TO 30 MPH...WITH GUSTS
UP TO 45 MPH...PRODUCING BLOWING AND DRIFTING SNOW ON THE EXPOSED
PARTS OF CAMAS PRAIRIE.

THIS INCLUDES THE FOLLOWING LOCATIONS...CRAIGMONT...NEZPERCE...
WINCHESTER...SOLDIERS MEADOW ROAD...ANATONE...PEOLA...MOUNTAIN
ROAD...CLOVERLAND ROAD.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

$$

IDZ004-290500-
/O.CON.KOTX.WS.W.0024.090329T0000Z-090330T0000Z/
CENTRAL PANHANDLE MOUNTAINS-
INCLUDING THE CITIES OF...KELLOGG...ST MARIES...PINEHURST...
OSBURN...WALLACE...MULLAN
312 PM PDT SAT MAR 28 2009

...WINTER STORM WARNING REMAINS IN EFFECT FROM 5 PM THIS
AFTERNOON TO 5 PM PDT SUNDAY ABOVE 2500 FEET...

A WINTER STORM WARNING FOR SNOW REMAINS IN EFFECT FROM 5 PM THIS
AFTERNOON TO 5 PM PDT SUNDAY.

SNOW ACCUMULATIONS OF 8 TO 15 INCHES WILL BE LIKELY IN THE
MOUNTAINS OF THE CENTRAL IDAHO PANHANDLE...WITH 3 TO 6 INCHES
IN THE VALLEYS ABOVE 2500 FEET. BELOW 2500 FEET PRECIPITATION
WILL BEGIN AS A SNOW AND RAIN MIX THIS EVENING...THEN CHANGE TO
SNOW TONIGHT WITH 2 TO 3 INCHES POSSIBLE BY SUNDAY MORNING. IN
ADDITION...STRENGTHENING GUSTY WEST WINDS UP TO 45 MPH WILL LIKELY
PRODUCE BLOWING SNOW SUNDAY FOR THE MOUNTAINS. TRAVELERS ALONG
INTERSTATE 90 FROM OSBURN TO THE MONTANA BORDER WILL BE
SIGNIFICANTLY AFFECTED BY THIS SNOW. ALLOW EXTRA TIME FOR TRAVEL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SIGNIFICANT AMOUNTS
OF SNOW ARE EXPECTED OR OCCURRING. SNOW ACCUMULATIONS WILL MAKE
TRAVEL VERY HAZARDOUS OR IMPOSSIBLE.

&&

THIS INCLUDES THE FOLLOWING LOCATIONS...OSBURN...WALLACE...
MULLAN...DOBSON PASS...LOOKOUT PASS.

$$

WAZ031-290500-
/O.CON.KOTX.WS.W.0024.090329T0000Z-090330T0000Z/
NORTHEAST BLUE MOUNTAINS-
INCLUDING THE CITIES OF...ANATONE...PEOLA
312 PM PDT SAT MAR 28 2009

...WINTER STORM WARNING REMAINS IN EFFECT FROM 5 PM THIS
AFTERNOON TO 5 PM PDT SUNDAY ABOVE 4500 FEET...

A WINTER STORM WARNING FOR SNOW AND BLOWING SNOW REMAINS IN EFFECT
FROM 5 PM THIS AFTERNOON TO 5 PM PDT SUNDAY.

SNOW ACCUMULATIONS OF 8 TO 14 INCHES CAN BE EXPECTED IN THE MOUNTAINS
ABOVE 4500 FEET BY SUNDAY EVENING. IN ADDITION...STRENGTHENING
GUSTY WEST WINDS UP TO 45 MPH WILL LIKELY PRODUCE BLOWING AND
DRIFTING OF SNOW TONIGHT AND SUNDAY.

THIS INCLUDES THE FOLLOWING LOCATIONS...ANATONE...PEOLA...
MOUNTAIN ROAD...CLOVERLAND ROAD.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

$$

IDZ003-026-WAZ032-033-290500-
/O.EXB.KOTX.WW.Y.0028.090329T0300Z-090329T1800Z/
IDAHO PALOUSE-LEWISTON AREA-LOWER GARFIELD AND ASOTIN COUNTIES-
WASHINGTON PALOUSE-
INCLUDING THE CITIES OF...MOSCOW...PLUMMER...POTLATCH...GENESEE...
LEWISTON...LAPWAI...PECK...CULDESAC...GIFFORD...CLARKSTON...
POMEROY...PULLMAN...COLFAX...ROSALIA...LA CROSSE...OAKESDALE...
TEKOA...UNIONTOWN
312 PM PDT SAT MAR 28 2009

...WINTER WEATHER ADVISORY IN EFFECT FROM 8 PM THIS EVENING TO
11 AM PDT SUNDAY ABOVE 2500 FEET...

THE NATIONAL WEATHER SERVICE IN SPOKANE HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW ABOVE 2500 FEET...WHICH IS IN EFFECT FROM 8
PM THIS EVENING TO 11 AM PDT SUNDAY.

A MIX OF RAIN AND SNOW LATE AFTERNOON AND EARLY EVENING WILL CHANGE
TO SNOW OVERNIGHT...WITH 1 TO 3 INCHES OF SNOW EXPECTED BY SUNDAY
MORNING ABOVE 2500 FEET. IN ADDITION...STRENGTHENING GUSTY WEST
WINDS WILL LIKELY PRODUCE POCKETS OF BLOWING SNOW AND SEVERELY
RESTRICTED VISIBILITIES. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW...SLEET...OR
FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR
SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE
DRIVING.

&&

$$

IDZ001-002-WAZ036-037-290500-
/O.EXT.KOTX.WW.Y.0028.090329T0300Z-090329T1800Z/
NORTHERN PANHANDLE-COEUR DALENE AREA-SPOKANE AREA-
NORTHEAST MOUNTAINS-
INCLUDING THE CITIES OF...SANDPOINT...RATHDRUM...BONNERS FERRY...
PRIEST RIVER...EASTPORT...COEUR DALENE...POST FALLS...HAYDEN...
WORLEY...SPOKANE...CHENEY...DAVENPORT...ROCKFORD...COLVILLE...
DEER PARK...CHEWELAH...NEWPORT...KETTLE FALLS
312 PM PDT SAT MAR 28 2009

...WINTER WEATHER ADVISORY NOW IN EFFECT FROM 8 PM THIS EVENING
TO 11 AM PDT SUNDAY ABOVE 2000 FEET...

THE WINTER WEATHER ADVISORY FOR SNOW IS NOW IN EFFECT FROM 8 PM
THIS EVENING TO 11 AM PDT SUNDAY.

SNOW ACCUMULATIONS OF 3 TO 6 INCHES WILL BE LIKELY IN THE
MOUNTAINS OF NORTHEAST WASHINGTON AND FAR NORTH IDAHO. ONE TO 3
INCHES CAN BE EXPECTED IN THE VALLEYS ABOVE 2000 FEET SOUTH OF A
LINE FROM COLVILLE TO SANDPOINT. THE PRECIPITATION WILL BEGIN AS
A SNOW AND RAIN MIX THIS AFTERNOON...AND CHANGE TO SNOW THIS
EVENING. IN ADDITION...STRENGTHENING GUSTY NORTHWEST WINDS WILL
LIKELY PRODUCE BLOWING SNOW INTO SUNDAY FOR THE MOUNTAINS.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW...SLEET...OR
FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR
SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE
DRIVING.

&&

$$
000 
WWUS46 KOTX 290309
WSWOTX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SPOKANE WA
809 PM PDT SAT MAR 28 2009

...SIGNIFICANT LATE SEASON SNOWS AND GUSTY WINDS EXPECTED AS A
STRONG LATE SEASON PACIFIC STORM SYSTEM PASSES THROUGH THE REGION
TONIGHT AND SUNDAY...

IDZ003-WAZ033-291115-
/O.UPG.KOTX.WW.Y.0028.000000T0000Z-090329T1800Z/
/O.EXB.KOTX.WS.W.0024.000000T0000Z-090329T2100Z/
IDAHO PALOUSE-WASHINGTON PALOUSE-
INCLUDING THE FOLLOWING LOCATIONS...MOSCOW...PLUMMER...POTLATCH...
GENESEE...PULLMAN...OAKESDALE...TEKOA...UNIONTOWN
809 PM PDT SAT MAR 28 2009

...WINTER STORM WARNING IN EFFECT UNTIL 2 PM PDT SUNDAY ABOVE
2500 FEET...

THE NATIONAL WEATHER SERVICE IN SPOKANE HAS ISSUED A WINTER STORM
WARNING ABOVE 2500 FEET...WHICH IS IN EFFECT UNTIL 2 PM PDT
SUNDAY. THE WINTER WEATHER ADVISORY IS NO LONGER IN EFFECT. 

SNOW ACCUMULATIONS OF 3 TO 6 INCHES ARE EXPECTED ABOVE 2500
FEET...WITH 1 TO 3 INCHES EXPECTED BELOW THIS LEVEL THROUGH
SUNDAY MIDDAY. IN ADDITION...STRENGTHENING GUSTY WEST WINDS WILL
LIKELY PRODUCE POCKETS OF BLOWING SNOW AND RESTRICTED
VISIBILITIES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SIGNIFICANT AMOUNTS
OF SNOW ARE EXPECTED OR OCCURRING. SNOW ACCUMULATIONS WILL MAKE
TRAVEL VERY HAZARDOUS OR IMPOSSIBLE.

&&

THIS INCLUDES THE FOLLOWING LOCATIONS...MOSCOW...PLUMMER...
POTLATCH...GENESEE...PULLMAN...OAKESDALE...TEKOA...UNIONTOWN.

$$

WAZ031-291115-
/O.CON.KOTX.WS.W.0024.000000T0000Z-090330T0000Z/
NORTHEAST BLUE MOUNTAINS-
INCLUDING THE FOLLOWING LOCATIONS...ANATONE...PEOLA...
MOUNTAIN ROAD...CLOVERLAND ROAD
809 PM PDT SAT MAR 28 2009

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM PDT SUNDAY...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM PDT SUNDAY. 

SNOW ACCUMULATIONS OF 8 TO 14 INCHES CAN BE EXPECTED IN THE
MOUNTAINS BY SUNDAY EVENING. IN ADDITION...STRENGTHENING GUSTY
WEST WINDS UP TO 45 MPH WILL LIKELY PRODUCE BLOWING AND DRIFTING
OF SNOW TONIGHT AND SUNDAY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 INCLUDES THE FOLLOWING LOCATIONS...ANATONE...PEOLA...
MOUNTAIN ROAD...CLOVERLAND ROAD.

$$

IDZ004-291115-
/O.CON.KOTX.WS.W.0024.000000T0000Z-090330T0000Z/
CENTRAL PANHANDLE MOUNTAINS-
INCLUDING THE FOLLOWING LOCATIONS...OSBURN...WALLACE...MULLAN...
FOURTH OF JULY PASS...DOBSON PASS...LOOKOUT PASS
809 PM PDT SAT MAR 28 2009

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM PDT SUNDAY
ABOVE 2500 FEET...

A WINTER STORM WARNING ABOVE 2500 FEET REMAINS IN EFFECT UNTIL
5 PM PDT SUNDAY. 

SNOW ACCUMULATIONS OF 8 TO 15 INCHES WILL BE LIKELY IN THE
MOUNTAINS OF THE CENTRAL IDAHO PANHANDLE...WITH 3 TO 6 INCHES IN
THE VALLEYS ABOVE 2500 FEET. BELOW 2500 FEET PRECIPITATION WILL
BEGIN AS A SNOW AND RAIN MIX THIS EVENING...THEN CHANGE TO SNOW
TONIGHT WITH 2 TO 3 INCHES POSSIBLE BY SUNDAY MORNING. IN
ADDITION...STRENGTHENING GUSTY WEST WINDS UP TO 45 MPH WILL
LIKELY PRODUCE BLOWING SNOW SUNDAY FOR THE MOUNTAINS. TRAVELERS
ALONG INTERSTATE 90 FROM OSBURN TO THE MONTANA BORDER WILL BE
SIGNIFICANTLY AFFECTED BY THIS SNOW. ALLOW EXTRA TIME FOR TRAVEL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SIGNIFICANT AMOUNTS
OF SNOW ARE EXPECTED OR OCCURRING. SNOW ACCUMULATIONS WILL MAKE
TRAVEL VERY HAZARDOUS OR IMPOSSIBLE.

&&

THIS INCLUDES THE FOLLOWING LOCATIONS...OSBURN...WALLACE...
MULLAN...FOURTH OF JULY PASS...DOBSON PASS...LOOKOUT PASS.

$$

IDZ027-291115-
/O.CON.KOTX.WS.W.0024.090329T0600Z-090330T0000Z/
LEWIS AND SOUTHERN NEZ PERCE COUNTIES-
INCLUDING THE FOLLOWING LOCATIONS...CRAIGMONT...NEZPERCE...
WINCHESTER...SOLDIERS MEADOW ROAD
809 PM PDT SAT MAR 28 2009

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM PDT SUNDAY
ABOVE 2500 FEET...

A WINTER STORM WARNING ABOVE 2500 FEET REMAINS IN EFFECT UNTIL
5 PM PDT SUNDAY. 

SNOW ACCUMULATIONS OF 5 TO 8 INCHES ABOVE 3000 FEET ON THE CAMAS
PRAIRIE IS EXPECTED OVERNIGHT AND SUNDAY. LESSER AMOUNTS AROUND AN
INCH WILL BE LIKELY DOWN TO 2000 FEET. IN ADDITION...GUSTY WEST
WINDS OVERNIGHT WILL INCREASE TO 20 TO 30 MPH...WITH GUSTS UP TO
45 MPH...PRODUCING BLOWING AND DRIFTING SNOW ON THE EXPOSED PARTS
OF CAMAS PRAIRIE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 INCLUDES THE FOLLOWING LOCATIONS...CRAIGMONT...NEZPERCE...
WINCHESTER...SOLDIERS MEADOW ROAD.

$$

IDZ001-002-WAZ036-037-291115-
/O.CON.KOTX.WW.Y.0028.000000T0000Z-090329T1800Z/
NORTHERN PANHANDLE-COEUR DALENE AREA-SPOKANE AREA-
NORTHEAST MOUNTAINS-
INCLUDING THE FOLLOWING LOCATIONS...SANDPOINT...RATHDRUM...
PRIEST RIVER...SCHWEITZER MOUNTAIN ROAD...COEUR DALENE...
POST FALLS...HAYDEN...WORLEY...CHENEY...DAVENPORT...ROCKFORD...
DEER PARK...NEWPORT...SPRINGDALE-HUNTERS ROAD...ORIN-RICE ROAD...
FLOWERY TRAIL ROAD
809 PM PDT SAT MAR 28 2009

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM PDT
SUNDAY ABOVE 2000 FEET...

A WINTER WEATHER ADVISORY ABOVE 2000 FEET REMAINS IN EFFECT UNTIL
11 AM PDT SUNDAY. 

SNOW ACCUMULATIONS OF 3 TO 6 INCHES WILL BE LIKELY IN THE
MOUNTAINS OF NORTHEAST WASHINGTON AND FAR NORTH IDAHO.
ACCUMULATIONS OF 1 TO 3 INCHES CAN BE EXPECTED IN THE VALLEYS
ABOVE 2000 FEET. THE PRECIPITATION WILL BEGIN AS A SNOW AND RAIN
MIX THIS AFTERNOON...AND CHANGE TO SNOW THIS EVENING. IN
ADDITION...STRENGTHENING GUSTY NORTHWEST WINDS WILL LIKELY PRODUCE
BLOWING SNOW INTO SUNDAY FOR THE MOUNTAINS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW...SLEET...OR
FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR
SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE
DRIVING.

&&

THIS INCLUDES THE FOLLOWING LOCATIONS...SANDPOINT...RATHDRUM...
PRIEST RIVER...SCHWEITZER MOUNTAIN ROAD...COEUR DALENE...POST
FALLS...HAYDEN...WORLEY...CHENEY...DAVENPORT...ROCKFORD...DEER
PARK...NEWPORT...SPRINGDALE-HUNTERS ROAD...ORIN-RICE ROAD...
FLOWERY TRAIL ROAD.

$$

IDZ026-WAZ032-291115-
/O.CON.KOTX.WW.Y.0028.000000T0000Z-090329T1800Z/
LEWISTON AREA-LOWER GARFIELD AND ASOTIN COUNTIES-
INCLUDING THE FOLLOWING LOCATIONS...GIFFORD...ALPOWA SUMMIT
809 PM PDT SAT MAR 28 2009

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM PDT
SUNDAY ABOVE 2500 FEET...

A WINTER WEATHER ADVISORY ABOVE 2500 FEET REMAINS IN EFFECT UNTIL
11 AM PDT SUNDAY. 

A MIX OF RAIN AND SNOW LATE AFTERNOON AND EARLY EVENING WILL
CHANGE TO SNOW OVERNIGHT...WITH 1 TO 3 INCHES OF SNOW EXPECTED BY
SUNDAY MORNING ABOVE 2500 FEET. IN ADDITION...STRENGTHENING GUSTY
WEST WINDS WILL LIKELY PRODUCE POCKETS OF BLOWING SNOW AND
SEVERELY RESTRICTED VISIBILITIES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW...SLEET...OR
FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR
SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE
DRIVING.

&&

THIS INCLUDES THE FOLLOWING LOCATIONS...GIFFORD...ALPOWA SUMMIT.

$$
000 
WWUS46 KOTX 291046
WSWOTX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SPOKANE WA
346 AM PDT SUN MAR 29 2009

IDZ004-027-291900-
/O.EXT.KOTX.WS.W.0024.000000T0000Z-090330T0600Z/
CENTRAL PANHANDLE MOUNTAINS-LEWIS AND SOUTHERN NEZ PERCE COUNTIES-
INCLUDING THE FOLLOWING LOCATIONS...OSBURN...WALLACE...MULLAN...
FOURTH OF JULY PASS...DOBSON PASS...LOOKOUT PASS...CRAIGMONT...
NEZPERCE...WINCHESTER...SOLDIERS MEADOW ROAD
346 AM PDT SUN MAR 29 2009

...WINTER STORM WARNING NOW IN EFFECT UNTIL 11 PM PDT THIS
EVENING ABOVE 2500 FEET...

THE WINTER STORM WARNING ABOVE 2500 FEET IS NOW IN EFFECT UNTIL
11 PM PDT THIS EVENING.

SNOW ACCUMULATIONS OF 8 TO 15 INCHES WILL BE LIKELY IN THE
MOUNTAINS OF THE CENTRAL IDAHO PANHANDLE...WITH 3 TO 6 INCHES IN
THE VALLEYS ABOVE 2500 FEET. BELOW 2500 FEET PRECIPITATION WILL
BE WET SNOW WITH ACCUMULATIONS OF 1 TO 3 INCHES. IN
ADDITION...STRENGTHENING GUSTY WEST WINDS UP TO 45 MPH WILL LIKELY
PRODUCE BLOWING SNOW SUNDAY FOR THE MOUNTAINS. TRAVELERS ALONG
INTERSTATE 90 FROM OSBURN TO THE MONTANA BORDER WILL BE
SIGNIFICANTLY AFFECTED BY THIS SNOW. ALLOW EXTRA TIME FOR TRAVEL.

SNOW ACCUMULATIONS OF 5 TO 9 INCHES ABOVE 3000 FEET ON THE CAMAS
PRAIRIE IS EXPECTED TODAY AND TONIGHT. LESSER AMOUNTS AROUND AN
INCH WILL BE LIKELY DOWN TO 2000 FEET. IN ADDITION...GUSTY WEST
WINDS OVERNIGHT WILL INCREASE TO 20 TO 30 MPH...WITH GUSTS UP TO
45 MPH...PRODUCING BLOWING AND DRIFTING SNOW ON THE EXPOSED PARTS
OF CAMAS PRAIRIE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 INCLUDES THE FOLLOWING LOCATIONS...OSBURN...WALLACE...
MULLAN...FOURTH OF JULY PASS...DOBSON PASS...LOOKOUT PASS...
CRAIGMONT...NEZPERCE...WINCHESTER...SOLDIERS MEADOW ROAD.

$$

WAZ031-291900-
/O.CON.KOTX.WS.W.0024.000000T0000Z-090330T0000Z/
NORTHEAST BLUE MOUNTAINS-
INCLUDING THE FOLLOWING LOCATIONS...ANATONE...PEOLA...
MOUNTAIN ROAD...CLOVERLAND ROAD
346 AM PDT SUN MAR 29 2009

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM PDT THIS
AFTERNOON...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM PDT THIS
AFTERNOON. 

SNOW ACCUMULATIONS OF 8 TO 14 INCHES CAN BE EXPECTED IN THE
MOUNTAINS BY THIS EVENING. IN ADDITION...STRENGTHENING GUSTY WEST
WINDS UP TO 45 MPH WILL LIKELY PRODUCE BLOWING AND DRIFTING OF
SNOW TONIGHT AND SUNDAY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 INCLUDES THE FOLLOWING LOCATIONS...ANATONE...PEOLA...
MOUNTAIN ROAD...CLOVERLAND ROAD.

$$

IDZ003-WAZ033-291900-
/O.CON.KOTX.WS.W.0024.000000T0000Z-090329T2100Z/
IDAHO PALOUSE-WASHINGTON PALOUSE-
INCLUDING THE FOLLOWING LOCATIONS...MOSCOW...PLUMMER...POTLATCH...
GENESEE...PULLMAN...OAKESDALE...TEKOA...UNIONTOWN
346 AM PDT SUN MAR 29 2009

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 2 PM PDT THIS
AFTERNOON ABOVE 2500 FEET...

A WINTER STORM WARNING ABOVE 2500 FEET REMAINS IN EFFECT UNTIL
2 PM PDT THIS AFTERNOON. 

SNOW ACCUMULATIONS OF 3 TO 6 INCHES ARE EXPECTED ABOVE
2500 FEET...WITH 1 TO 3 INCHES EXPECTED BELOW THIS LEVEL THROUGH
MIDDAY. IN ADDITION...STRENGTHENING GUSTY WEST WINDS WILL LIKELY
PRODUCE POCKETS OF BLOWING SNOW AND RESTRICTED VISIBILITIES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SIGNIFICANT AMOUNTS
OF SNOW ARE EXPECTED OR OCCURRING. SNOW ACCUMULATIONS WILL MAKE
TRAVEL VERY HAZARDOUS OR IMPOSSIBLE.

&&

THIS INCLUDES THE FOLLOWING LOCATIONS...MOSCOW...PLUMMER...
POTLATCH...GENESEE...PULLMAN...OAKESDALE...TEKOA...UNIONTOWN.

$$

IDZ001-002-WAZ036-037-291800-
/O.CON.KOTX.WW.Y.0028.000000T0000Z-090329T1800Z/
NORTHERN PANHANDLE-COEUR DALENE AREA-SPOKANE AREA-
NORTHEAST MOUNTAINS-
INCLUDING THE FOLLOWING LOCATIONS...SANDPOINT...RATHDRUM...
PRIEST RIVER...SCHWEITZER MOUNTAIN ROAD...COEUR DALENE...
POST FALLS...HAYDEN...WORLEY...CHENEY...DAVENPORT...ROCKFORD...
DEER PARK...NEWPORT...SPRINGDALE-HUNTERS ROAD...ORIN-RICE ROAD...
FLOWERY TRAIL ROAD
346 AM PDT SUN MAR 29 2009

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM PDT THIS
MORNING ABOVE 2000 FEET...

A WINTER WEATHER ADVISORY ABOVE 2000 FEET REMAINS IN EFFECT UNTIL
11 AM PDT THIS MORNING. 

SNOW ACCUMULATIONS OF 3 TO 6 INCHES WILL BE LIKELY IN THE
MOUNTAINS OF NORTHEAST WASHINGTON AND FAR NORTH IDAHO.
ACCUMULATIONS OF 1 TO 3 INCHES CAN BE EXPECTED IN THE VALLEYS
ABOVE 2000 FEET. SNOW WILL TAPER OFF TO SCATTERED SNOW AND RAIN
SHOWERS BY AFTERNOON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW...SLEET...OR
FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR
SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE
DRIVING.

&&

THIS INCLUDES THE FOLLOWING LOCATIONS...SANDPOINT...RATHDRUM...
PRIEST RIVER...SCHWEITZER MOUNTAIN ROAD...COEUR DALENE...POST
FALLS...HAYDEN...WORLEY...CHENEY...DAVENPORT...ROCKFORD...DEER
PARK...NEWPORT...SPRINGDALE-HUNTERS ROAD...ORIN-RICE ROAD...
FLOWERY TRAIL ROAD.

$$

IDZ026-WAZ032-291800-
/O.CON.KOTX.WW.Y.0028.000000T0000Z-090329T1800Z/
LEWISTON AREA-LOWER GARFIELD AND ASOTIN COUNTIES-
INCLUDING THE FOLLOWING LOCATIONS...GIFFORD...ALPOWA SUMMIT
346 AM PDT SUN MAR 29 2009

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM PDT THIS
MORNING ABOVE 2500 FEET...

A WINTER WEATHER ADVISORY ABOVE 2500 FEET REMAINS IN EFFECT UNTIL
11 AM PDT THIS MORNING. 

1 TO 3 INCHES OF SNOW WILL ACCUMULATE ABOVE 2500 FEET MAINLY THIS
MORNING. SNOW WILL TAPER OFF TO SCATTERED SNOW SHOWERS THIS
AFTERNOON. IN ADDITION...STRENGTHENING GUSTY WEST WINDS WILL
LIKELY PRODUCE POCKETS OF BLOWING SNOW AND RESTRICTED
VISIBILITIES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW...SLEET...OR
FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR
SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE
DRIVING.

&&

THIS INCLUDES THE FOLLOWING LOCATIONS...GIFFORD...ALPOWA SUMMIT.

$$
000 
WWUS46 KOTX 291756 AAA
WSWOTX

URGENT - WINTER WEATHER MESSAGE...UPDATED
NATIONAL WEATHER SERVICE SPOKANE WA
1056 AM PDT SUN MAR 29 2009

IDZ001-002-026-WAZ032-036-037-291900-
/O.CAN.KOTX.WW.Y.0028.000000T0000Z-090329T1800Z/
NORTHERN PANHANDLE-COEUR DALENE AREA-LEWISTON AREA-
LOWER GARFIELD AND ASOTIN COUNTIES-SPOKANE AREA-
NORTHEAST MOUNTAINS-
INCLUDING THE FOLLOWING LOCATIONS...SANDPOINT...RATHDRUM...
PRIEST RIVER...SCHWEITZER MOUNTAIN ROAD...COEUR DALENE...
POST FALLS...HAYDEN...WORLEY...GIFFORD...ALPOWA SUMMIT...CHENEY...
DAVENPORT...ROCKFORD...DEER PARK...NEWPORT...
SPRINGDALE-HUNTERS ROAD...ORIN-RICE ROAD...FLOWERY TRAIL ROAD
1056 AM PDT SUN MAR 29 2009

...WINTER WEATHER ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN SPOKANE HAS CANCELLED THE WINTER
WEATHER ADVISORY. 

A SLOW MOVING NARROW BAND OF SNOW STRETCHING NORTH TO SOUTH FROM
SPRINGDALE IN STEVENS COUNTY TO REARDAN...TYLER AND COLFAX WILL
DRIFT VERY SLOWLY SOUTHWEST THIS MORNING AND PRODUCE A CORRIDOR OF
HEAVIER SNOW. HOWEVER...WIDESPREAD SIGNIFICANT SNOW ACCUMULATIONS
ARE NO LONGER EXPECTED. THE SNOW SHOWERS WILL SLOWLY DECREASE
ACROSS THE REGION TODAY...BECOMING ISOLATED BY AFTERNOON.

THIS INCLUDES THE FOLLOWING LOCATIONS...SANDPOINT...RATHDRUM...
PRIEST RIVER...SCHWEITZER MOUNTAIN ROAD...COEUR DALENE...POST
FALLS...HAYDEN...WORLEY...GIFFORD...ALPOWA SUMMIT...CHENEY...
DAVENPORT...ROCKFORD...DEER PARK...NEWPORT...SPRINGDALE-HUNTERS
ROAD...ORIN-RICE ROAD...FLOWERY TRAIL ROAD.

$$

WAZ031-300000-
/O.EXT.KOTX.WS.W.0024.000000T0000Z-090330T0000Z/
NORTHEAST BLUE MOUNTAINS-
INCLUDING THE FOLLOWING LOCATIONS...ANATONE...PEOLA...
MOUNTAIN ROAD...CLOVERLAND ROAD
1056 AM PDT SUN MAR 29 2009

...WINTER STORM WARNING NOW IN EFFECT UNTIL 5 PM PDT THIS
AFTERNOON...

THE WINTER STORM WARNING IS NOW IN EFFECT UNTIL 5 PM PDT THIS
AFTERNOON. 

STORM TOTAL SNOW ACCUMULATIONS OF 9 TO 16 INCHES CAN BE EXPECTED
IN THE MOUNTAINS BY THIS EVENING. IN ADDITION...STRENGTHENING
GUSTY WEST WINDS UP TO 45 MPH WILL LIKELY PRODUCE BLOWING AND
DRIFTING OF SNOW TONIGHT AND SUNDAY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 INCLUDES THE FOLLOWING LOCATIONS...ANATONE...PEOLA...
MOUNTAIN ROAD...CLOVERLAND ROAD.

$$

IDZ004-027-300200-
/O.EXT.KOTX.WS.W.0024.000000T0000Z-090330T0600Z/
CENTRAL PANHANDLE MOUNTAINS-LEWIS AND SOUTHERN NEZ PERCE COUNTIES-
INCLUDING THE FOLLOWING LOCATIONS...OSBURN...WALLACE...MULLAN...
FOURTH OF JULY PASS...DOBSON PASS...LOOKOUT PASS...CRAIGMONT...
NEZPERCE...WINCHESTER...SOLDIERS MEADOW ROAD
1056 AM PDT SUN MAR 29 2009

...WINTER STORM WARNING NOW IN EFFECT UNTIL 11 PM PDT THIS
EVENING ABOVE 2500 FEET...

THE WINTER STORM WARNING ABOVE 2500 FEET IS NOW IN EFFECT UNTIL
11 PM PDT THIS EVENING. 

SNOW ACCUMULATIONS OF 8 TO 15 INCHES WILL BE LIKELY IN THE
MOUNTAINS OF THE CENTRAL IDAHO PANHANDLE...WITH 3 TO 6 INCHES IN
THE VALLEYS ABOVE 2500 FEET. BELOW 2500 FEET PRECIPITATION WILL
BE WET SNOW WITH ACCUMULATIONS OF 1 TO 3 INCHES. IN ADDITION...
STRENGTHENING GUSTY WEST WINDS UP TO 45 MPH WILL LIKELY PRODUCE
BLOWING SNOW SUNDAY FOR THE MOUNTAINS. TRAVELERS ALONG INTERSTATE
90 FROM OSBURN TO THE MONTANA BORDER WILL BE SIGNIFICANTLY
AFFECTED BY THIS SNOW. ALLOW EXTRA TIME FOR TRAVEL.

STORM TOTAL SNOW ACCUMULATIONS OF 5 TO 9 INCHES ABOVE 3000 FEET
ON THE CAMAS PRAIRIE IS EXPECTED. LESSER AMOUNTS AROUND AN INCH
WILL BE LIKELY DOWN TO 2000 FEET. IN ADDITION...GUSTY WEST WINDS
OVERNIGHT WILL INCREASE TO 20 TO 30 MPH...WITH GUSTS UP TO 45
MPH...PRODUCING BLOWING AND DRIFTING SNOW ON THE EXPOSED PARTS OF
CAMAS PRAIRIE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 INCLUDES THE FOLLOWING LOCATIONS...OSBURN...WALLACE...
MULLAN...FOURTH OF JULY PASS...DOBSON PASS...LOOKOUT PASS...
CRAIGMONT...NEZPERCE...WINCHESTER...SOLDIERS MEADOW ROAD.

$$

IDZ003-WAZ033-292100-
/O.EXT.KOTX.WS.W.0024.000000T0000Z-090329T2100Z/
IDAHO PALOUSE-WASHINGTON PALOUSE-
INCLUDING THE FOLLOWING LOCATIONS...MOSCOW...PLUMMER...POTLATCH...
GENESEE...PULLMAN...OAKESDALE...TEKOA...UNIONTOWN
1056 AM PDT SUN MAR 29 2009

...WINTER STORM WARNING NOW IN EFFECT UNTIL 2 PM PDT THIS
AFTERNOON ABOVE 2500 FEET...

THE WINTER STORM WARNING ABOVE 2500 FEET IS NOW IN EFFECT UNTIL
2 PM PDT THIS AFTERNOON. 

SNOW ACCUMULATIONS OF 3 TO 6 INCHES ARE EXPECTED ABOVE
2500 FEET...WITH 1 TO 3 INCHES EXPECTED BELOW THIS LEVEL THROUGH
MIDDAY. IN ADDITION...STRENGTHENING GUSTY WEST WINDS WILL LIKELY
PRODUCE POCKETS OF BLOWING SNOW AND RESTRICTED VISIBILITIES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SIGNIFICANT AMOUNTS
OF SNOW ARE EXPECTED OR OCCURRING. SNOW ACCUMULATIONS WILL MAKE
TRAVEL VERY HAZARDOUS OR IMPOSSIBLE.

&&

THIS INCLUDES THE FOLLOWING LOCATIONS...MOSCOW...PLUMMER...
POTLATCH...GENESEE...PULLMAN...OAKESDALE...TEKOA...UNIONTOWN.

$$
000 
WWUS46 KOTX 292101 AAB
WSWOTX

URGENT - WINTER WEATHER MESSAGE...UPDATED
NATIONAL WEATHER SERVICE SPOKANE WA
201 PM PDT SUN MAR 29 2009

WAZ031-292215-
/O.CAN.KOTX.WS.W.0024.000000T0000Z-090330T0000Z/
NORTHEAST BLUE MOUNTAINS-
INCLUDING THE FOLLOWING LOCATIONS...ANATONE...PEOLA...
MOUNTAIN ROAD...CLOVERLAND ROAD
201 PM PDT SUN MAR 29 2009

...WINTER STORM WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN SPOKANE HAS CANCELLED THE WINTER
STORM WARNING. 

THOUGH SCATTERED SNOW SHOWERS ABOVE 3500 FEET WILL PRODUCE
LOCALIZED ADDITIONAL ACCUMULATIONS OF 1 TO 2 INCHES INTO EARLY
EVENING...THE WIDESPREAD HEAVY SNOW THREAT HAS ENDED. EXPECT THE
SHOWERS TO CONTINUE TO DECREASE AND BECOME ISOLATED AFT 7 PM PDT.

THIS INCLUDES THE FOLLOWING LOCATIONS...ANATONE...PEOLA...
MOUNTAIN ROAD...CLOVERLAND ROAD.

$$

IDZ003-WAZ033-292215-
/O.CAN.KOTX.WS.W.0024.000000T0000Z-090329T2100Z/
IDAHO PALOUSE-WASHINGTON PALOUSE-
INCLUDING THE FOLLOWING LOCATIONS...MOSCOW...PLUMMER...POTLATCH...
GENESEE...PULLMAN...OAKESDALE...TEKOA...UNIONTOWN
201 PM PDT SUN MAR 29 2009

...WINTER STORM WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN SPOKANE HAS CANCELLED THE WINTER
STORM WARNING. 

THOUGH SCATTERED SNOW SHOWERS ABOVE 2500 FEET WILL PRODUCE
LOCALIZED ADDITIONAL ACCUMULATIONS LESS THAN AN INCH INTO EARLY
EVENING...THE WIDESPREAD HEAVY SNOW THREAT HAS ENDED. EXPECT THE
SHOWERS TO CONTINUE TO DECREASE AND BECOME ISOLATED AFT 7 PM PDT.

THIS INCLUDES THE FOLLOWING LOCATIONS...MOSCOW...PLUMMER...
POTLATCH...GENESEE...PULLMAN...OAKESDALE...TEKOA...UNIONTOWN.

$$

IDZ004-027-300515-
/O.CON.KOTX.WS.W.0024.000000T0000Z-090330T0600Z/
CENTRAL PANHANDLE MOUNTAINS-LEWIS AND SOUTHERN NEZ PERCE COUNTIES-
INCLUDING THE FOLLOWING LOCATIONS...OSBURN...WALLACE...MULLAN...
DOBSON PASS...LOOKOUT PASS...CRAIGMONT...NEZPERCE...WINCHESTER...
SOLDIERS MEADOW ROAD
201 PM PDT SUN MAR 29 2009

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 PM PDT THIS
EVENING ABOVE 3000 FEET...

A WINTER STORM WARNING ABOVE 3000 FEET REMAINS IN EFFECT UNTIL
11 PM PDT THIS EVENING. 

PERSISTENT SNOW SHOWERS WILL CONTINUE TO SLOWLY DECREASE INTO
EARLY EVENING...PRODUCING ADDITIONAL ACCUMULATIONS AROUND AN INCH
ON THE CAMAS PRAIRIE...AND 2 TO 3 ABOVE 3500 FEET IN THE CENTRAL
PANHANDLE MOUNTAINS. EXPECT THE SHOWERS TO CONTINUE TO DECREASE
AND BECOME ISOLATED AFT 8 PM PDT. STORM TOTAL SNOW ACCUMULATIONS
OF 8 TO 15 INCHES HAVE BEEN REPORTED IN THE MOUNTAINS OF THE
CENTRAL IDAHO PANHANDLE...WITH 2 TO 5 INCHES IN THE VALLEYS ABOVE
2500 FEET. STORM TOTAL SNOW OF 4 TO 8 INCHES WILL FALL ON THE
CAMAS PRAIRIE. IN ADDITION...GUSTY NORTHWEST WINDS UP TO 45 MPH
WILL PRODUCE BLOWING SNOW ABOVE 3500 FEET ON EXPOSED REGIONS OF
THE CAMAS PRAIRIE. TRAVELERS ALONG INTERSTATE 90 FROM WALLACE TO
THE MONTANA BORDER...AS WELL AS ON HIGHWAY 95 BETWEEN CRAIGMONT AND
REUBENS...WILL BE SIGNIFICANTLY AFFECTED BY THESE SNOW SHOWERS AND
WIND. ALLOW EXTRA TIME FOR TRAVEL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 INCLUDES THE FOLLOWING LOCATIONS...OSBURN...WALLACE...
MULLAN...DOBSON PASS...LOOKOUT PASS...CRAIGMONT...NEZPERCE...
WINCHESTER...SOLDIERS MEADOW ROAD.

$$
000 
WWUS46 KOTX 300153
WSWOTX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SPOKANE WA
653 PM PDT SUN MAR 29 2009


IDZ004-027-300300-
/O.CAN.KOTX.WS.W.0024.000000T0000Z-090330T0600Z/
CENTRAL PANHANDLE MOUNTAINS-LEWIS AND SOUTHERN NEZ PERCE COUNTIES-
INCLUDING THE FOLLOWING LOCATIONS...OSBURN...WALLACE...MULLAN...
DOBSON PASS...LOOKOUT PASS...CRAIGMONT...NEZPERCE...WINCHESTER...
SOLDIERS MEADOW ROAD
653 PM PDT SUN MAR 29 2009

...WINTER STORM WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN SPOKANE HAS CANCELLED THE WINTER
STORM WARNING. 

SNOW SHOWERS OVER THE CENTRAL PANHANDLE MOUNTAINS AND CAMAS
PRAIRIE WILL CONTINUE TO BECOME MORE ISOLATED THIS EVENING. WHILE
A FEW OF THE HIGHER ELEVATIONS MAY SEE AN ADDITIONAL INCH OF NEW
SNOWFALL...SIGNIFICANT ACCUMULATIONS WITH THIS SYSTEM HAVE ENDED.

THIS INCLUDES THE FOLLOWING LOCATIONS...OSBURN...WALLACE...
MULLAN...DOBSON PASS...LOOKOUT PASS...CRAIGMONT...NEZPERCE...
WINCHESTER...SOLDIERS MEADOW ROAD.

$$

What forecasters said that day

The local office's own words before this winter storm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Spokane, WA wrote its last area forecast discussion before this winter storm warning went out at Mar 28, 2:44 AM PDT, 41 minutes earlier.

Area forecast discussion, Mar 28, 2:44 AM PDT, 41 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SPOKANE WA
244 AM PDT SAT MAR 28 2009

.SYNOPSIS...
A STRONG EARLY SPRING STORM SYSTEM WILL SPREAD RAIN ACROSS THE
REGION TODAY. TONIGHT WINDY CONDITIONS WILL DEVELOP NEAR THE
CASCADES WHILE RAIN CHANGES OVER TO SNOW ACROSS FAR EASTERN
WASHINGTON AND NORTH IDAHO. ON SUNDAY SNOW SHOWERS WILL TAPER OFF
AS BREEZY AND COOL CONDITIONS ENVELOPE THE REGION. THROUGH THE
UPCOMING WORK WEEK THE WEATHER WILL REMAIN UNSETTLED...COOL AND
BREEZY.

&&

.DISCUSSION...
TODAY THROUGH SUNDAY...FORECAST AREA IS ABOUT TO GET WALLOPED WITH
A STRONG EARLY SPRING PACIFIC STORM SYSTEM. ON THE PACIFIC
SATELLITE LOOP THIS MORNING A BUCKLE IN THE POLAR STORM TRACK IS
EVIDENT BETWEEN 140 AND 150W. THIS IS THE DEVELOPING VIGOROUS
SHORT WAVE TROUGH WHICH WILL SUPPORT THE GENESIS OF A SURFACE LOW
OFF THE PACIFIC COAST LATER THIS MORNING...AND SUSTAIN AND DEEPEN
THIS SURFACE LOW AS IT TRACKS THROUGH THE FORECAST AREA TONIGHT.

AFTER SEVERAL RUNS OF MISERABLE MODEL TO MODEL AGREEMENT AND POOR
INTRA-MODEL RUN TO RUN CONSISTENCY...THE GFS/NAM AND ECMWF HAVE BECOME
LOOSELY AGREEABLE TO THE NOTION OF A MORE SOUTHERLY TRACK OF THE
SURFACE LOW FROM OFF THE COAST NEAR HOQUIAM AT 18Z TODAY...TO NEAR
YAKIMA BY 00Z AND PASSING BETWEEN SPOKANE AND PULLMAN OVERNIGHT
TONIGHT. INSPECTION AND EXTRAPOLATION OF WATER VAPOR LOOP WITH THE
INCIPIENT TROUGH OVER THE PACIFIC SUGGESTS THAT THE EVENTUAL TRACK
OF THIS SURFACE LOW COULD WIND UP EVEN FARTHER SOUTH THAN THE
CURRENT MODEL TRACKS.

GIVEN THIS UNCERTAINTY...AND THE MODELS TROUBLE WITH THIS
FEATURE FOR THE LAST FEW DAYS...CONFIDENCE IN CERTAIN ELEMENTS OF
THE FORECAST FOR THE NEXT 36 HOURS IS RELATIVELY LOW.
HOWEVER...CONFIDENCE IS HIGH OF DRAMATICALLY DETERIORATING
CONDITIONS TODAY...WITH TODAYS HIGHS PROBABLY OCCURRING IN THE
MORNING HOURS BEFORE HOLDING STEADY OR FALLING DURING THE AFTERNOON...
CULMINATING IN AN ONSET OF LIGHT VALLEY RAIN AND MOUNTAIN SNOW
LATE THIS MORNING OR EARLY AFTERNOON OVER MOST OF THE FORECAST
AREA. ALL OF THE MODELS INDICATE STRONG PRE-TROUGH DYNAMIC SUPPORT
AND MOIST ISENTROPIC ASCENT OVER THE REGION IN ADVANCE OF THE
SURFACE LOW. CONFIDENCE IS HIGH THAT RAIN WILL CHANGE OVER TO SNOW
SOMETIME THIS EVENING GENERALLY NORTH OF A LINE FROM OMAK TO GRAND
COULEE TO LEWISTON AS COLD AIR IS DRAWN INTO THE NORTHWEST
QUADRANT BEHIND THE LOW. CONFIDENCE IS HIGH THAT SOMEWHERE IN THIS
SNOW CHANGE-OVER REGION A TROWAL FEATURE WILL DEVELOP AND CREATE A
20 TO 40 MILE WIDE SWATH FEATURING BURSTS OF MODERATE TO HEAVY
SNOW FOR A FEW HOURS OVERNIGHT AND INTO SUNDAY MORNING. WITHIN
THIS BAND 2 TO LOCALLY 5 INCHES OF ACCUMULATION IS VERY POSSIBLE
GIVEN THE OVERNIGHT ONSET PERIOD...BUT OUTSIDE OF THIS
BAND...ACCUMULATIONS WILL BE MINOR. WHERE EXACTLY THIS TROWAL WILL
OCCUR IS NOT PINNED DOWN WITH ANY CONFIDENCE AT THIS TIME. IT IS
TOO DEPENDENT ON THE EXACT TRACK OF THE SURFACE LOW. THUS...WHILE
FORECASTS WILL MENTION WIDESPREAD SIGNIFICANT SNOW AMOUNTS OVER
THE EASTERN COLUMBIA BASIN TONIGHT...UNCERTAINTY IS STILL TOO
GREAT TO COMMIT TO ANY COLUMBIA BASIN SNOW ADVISORIES YET.

CONFIDENCE IS SIGNIFICANTLY HIGHER FOR THE PROSPECT OF HEAVY
MOUNTAIN SNOW OVER THE IDAHO CENTRAL PANHANDLE MOUNTAINS...NOT
ONLY FORM THE SYNOPTIC FORCING PROVIDED BY THE INCOMING TROUGH AND
THE SURFACE LOW...BUT ALSO FROM SUSTAINED MOIST OROGRAPHIC FLOW
INTO THESE MOUNTAINS AFTER THE COLD FRONT PASSAGE AND SURFACE LOW
EXIT ON SUNDAY. THUS THE INHERITED WATCH HAS BEEN UPGRADED TO A
WARNING. ALSO...CONFIDENCE IS HIGH ENOUGH FOR THE POSSIBILITY OF AT
LEAST LOW END WARNING CRITERIA OVER THE CAMAS PRAIRIE AND BLUE
MOUNTAINS TONIGHT AND SUNDAY TO WARRANT THE ISSUANCE OF A WINTER
STORM WATCH.

THE OTHER PROBLEM TO DEAL WITH WILL BE SIGNIFICANT WINDS AFTER THE
COLD FRONT PASSAGE TONIGHT AND SUNDAY MORNING. REGARDLESS OF WHERE
THE SURFACE LOW DECIDES TO WANDER...THE DEEP BASIN ZONES
INCLUDING THE WENATCHEE AREA...WATERVILLE PLATEAU AND GRANT COUNTY
WILL BE SUBJECT TO STRONG COLD ADVECTION SPILLING OFF THE CASCADES
TONIGHT AND SUNDAY MORNING AND A TIGHT SURFACE PRESSURE GRADIENT
FEEDING INTO THE BACK SIDE OF THE SURFACE LOW. THUS WIND
ADVISORIES FOR THESE ZONES WILL BE ISSUED WITH THE MORNING PACKAGE
FOR TONIGHT AND SUNDAY MORNING.

FINALLY...ON SUNDAY A GENERAL IMPROVEMENT FROM WEST TO EAST WILL
OCCUR WITH LINGERING MORNING SNOW SHOWERS OVER THE EASTERN
BASIN...BECOMING CONFINED LARGELY TO THE PANHANDLE MOUNTAINS BY
AFTERNOON. BREEZY CONDITIONS ALL OVER WILL ALLOW A WELL MIXED
ATMOSPHERE TO ADIABATICALLY WARM TO WELL ABOVE FREEZING OVER MOST
VALLEY LOCATIONS. /FUGAZZI

SUNDAY NIGHT AND MONDAY...THIS WEEKENDS STORM SYSTEM
WILL BE EXITING TO THE SE WITH DRIER NW FLOW AND A FEW LINGERING
LIGHT SNOW SHOWERS STRETCHING FROM THE NORTHERN BLUES....CAMAS
PRAIRIE...AND CENTRAL PANHANDLE MTNS. OTHERWISE...SKIES ARE
EXPECTED TO CLEAR AND WINDS WILL CALM AS WEAK SHORTWAVE RIDGING
BUILDS BRIEFLY OVER THE INLAND NW LEADING TO ANOTHER UNSEASONABLY
COOL MORNING ON MONDAY.

MONDAY THROUGH NEXT WEEKEND...OVERALL...THE LONGWAVE
PATTERN DOES NOT CHANGE OVER THE NEXT WEEK AND THE PAC NW WILL
REMAIN UNDER OR IN THE VCNTY OF AN ACTIVE NW JET. TEMPERATURES
WILL LIKELY CONTINUE BELOW NORMAL AND POPS WILL REMAIN NEAR TO
ABOVE NORMAL. THIS IS WELL SUPPORTED BY THE 5-WAVE CHART WHICH
SHOWERS LITTLE TO NO CHANGE THROUGH THE END OF THE WEEK.
THEREFORE...THE FORECAST WILL TREND TOWARD THE 00Z OPERATIONAL GFS
WHICH SHOWS LITTLE CHANGE WITH THE LONGWAVE PATTERN AND CONTINUES
TO DRIVE SHORTWAVES THROUGH THE PAC NW EVERY 48 HRS BRINGING
INCREASED POPS...GUSTY WINDS...AND REINFORCING SHOTS OF
UNSEASONABLY COOLER AIR.

THE FIRST WAVE OF NOTE WILL COME THROUGH MONDAY NT-TUESDAY AND A
SECOND WAVE WEDNESDAY NIGHT INTO THURSDAY. THE FIRST WAVE LOOKS
TO TAKE SE TRAJECTORY WITH THE HIGHEST POPS ACROSS THE ID
PANHANDLE AND EXTENDING INTO FAR EASTERN WA AS THE SFC LOW TRACKS
ACROSS SE BC INTO WESTERN MT. AT THIS TIME...WILL NOT PUT A LOT OF
STOCK IN THE EXACT MODEL PROGS ESPECIALLY WITH AN ACTIVE
PACIFIC...RECOGNITION OF MODEL PERFORMANCE IN SPRING AND WITH ITS
PERFORMANCE LEADING UP TO SATURDAYS STORM. SO MAIN CHANGES WERE
TO INCREASE POPS ACROSS THE OROGRAPHICALLY FAVORED ID
PANHANDLE...AND EXTENDING INTO FAR EASTERN WA.

AFTER A BRIEF BREAK IN THE UNSETTLED WEATHER WEDNESDAY...THE
NEXT STORM SYSTEM WILL LIKELY ARRIVE OVERNIGHT INTO THURSDAY. AT
THIS TIME...THIS STORM LOOKS TO TAKE A BIT MORE INSIDER...WESTERLY
TRACK WHICH PUTS OUR CWA IN A MORE FAVORABLE LOCATION FOR STRONGER
DYNAMICS AND CLOSER TO THE TRACK OF THE SFC LOW. AGAIN...FOR THE
AFOREMENTIONED REASONS... WILL NOT FOCUS ON DETAILS BUT DO WANT
TO CONVEY THE MESSAGE THAT ANOTHER ORGANIZED STORM SYSTEM IS
EXPECTED DURING THIS PERIOD AND POPS WERE ADJUSTED UPWARD. /BODNAR

&&

.AVIATION...
EXPECT HI AND MID LEVEL CLOUDS OVER THE REGION TONIGHT WITH VFR
CONDITIONS THROUGH 15Z SATURDAY. AFTER 15Z SATURDAY...A STRONGER
SYSTEM WILL APPROACH THE REGION WITH INCREASING MOISTURE AT THE
SURFACE AND ALOFT PRODUCING LOCAL MOUNTAIN OBSCURATIONS NEAR THE
CASCADES BY 18Z. BY 18Z CEILINGS AND VISIBILITIES WILL LOWER TO
IFR/MVFR IN RAIN/SNOW WITH WIDESPREAD MOUNTAIN OBSCURATIONS ACROSS
THE INLAND NORTHWEST.

&&

.PRELIMINARY POINT TEMPS/POPS...
SPOKANE        43  32  39  27  45  34 /  90  90  60  10  20  30
COEUR DALENE  44  32  39  25  43  33 / 100 100  70  20  20  40
PULLMAN        45  31  39  27  43  34 /  80  90  70  20  10  40
LEWISTON       52  34  45  32  49  37 /  80  60  70  20  10  20
COLVILLE       46  31  40  25  49  33 / 100 100  30  10  20  50
SANDPOINT      43  30  38  25  41  33 / 100 100  70  20  30  50
KELLOGG        42  29  35  26  39  30 / 100 100  90  50  30  50
MOSES LAKE     49  34  53  30  52  35 /  50  40  10   0  10  10
WENATCHEE      48  34  52  32  51  37 /  70  50  10   0  10  20
OMAK           50  33  49  29  53  34 /  60  60  10   0  20  20

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...WINTER STORM WARNING FROM 5 PM THIS AFTERNOON TO 5 PM PDT SUNDAY
     ABOVE 3000 FEET FOR CENTRAL PANHANDLE MOUNTAINS.

     WINTER STORM WATCH FROM THIS AFTERNOON THROUGH SUNDAY AFTERNOON
     FOR LEWIS AND SOUTHERN NEZ PERCE COUNTIES.

WA...WINTER STORM WATCH FROM THIS AFTERNOON THROUGH SUNDAY AFTERNOON
     FOR NORTHEAST BLUE MOUNTAINS.

     WIND ADVISORY FROM 8 PM THIS EVENING TO 8 AM PDT SUNDAY FOR
     MOSES LAKE AREA...OKANOGAN VALLEY...UPPER COLUMBIA BASIN...
     WATERVILLE PLATEAU...WENATCHEE AREA.

&&
Hazardous weather outlook, Mar 27, 4:27 PM PDT, 10 hours 58 minutes before
HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE SPOKANE WA
427 PM PDT FRI MAR 27 2009

WAZ034-035-038-041>044-282330-
MOSES LAKE AREA-UPPER COLUMBIA BASIN-OKANOGAN HIGHLANDS-
WENATCHEE AREA-EAST SLOPES NORTHERN CASCADES-OKANOGAN VALLEY-
WATERVILLE PLATEAU-
427 PM PDT FRI MAR 27 2009

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

.DAY ONE...TONIGHT

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

A STRONG STORM SYSTEM WILL MOVE INTO THE REGION LATE SATURDAY. THE
MAIN HAZARD WITH THIS STORM WILL BE STRONG WINDS AS A POWERFUL
COLD FRONT PUSHES THROUGH AND STRONG UPPER LEVEL WINDS MIX DOWN TO
THE SURFACE. SUSTAINED WINDS OF 20 TO 35 MPH WILL BE POSSIBLE WITH
LOCAL GUSTS AS HIGH AS 55 MPH. WINDS WILL BEGIN TO DECREASE
THROUGH THE DAY SUNDAY...BUT GUSTS TO 40 MPH WILL BE REMAIN
POSSIBLE BEFORE ENDING LATE AFTERNOON.

IDZ001-004-WAZ037-282330-
NORTHERN PANHANDLE-CENTRAL PANHANDLE MOUNTAINS-
NORTHEAST MOUNTAINS-
427 PM PDT FRI MAR 27 2009

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

.DAY ONE...TONIGHT

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

A STRONG STORM SYSTEM WILL MOVE THROUGH THE REGION LATE SATURDAY
AND INTO SUNDAY. THIS STORM WILL LIKELY PRODUCE SIGNIFICANT MOUNTAIN
AND VALLEY SNOWS FOR THE CENTRAL IDAHO PANHANDLE...WITH LESSER
AMOUNTS TO THE NORTH ACROSS NORTHEAST WASHINGTON. GUSTY WINDS
WILL BE LIKELY...ESPECIALLY IN THE MOUNTAINS.

IDZ002-003-026-027-WAZ031>033-036-282330-
COEUR DALENE AREA-IDAHO PALOUSE-LEWISTON AREA-
LEWIS AND SOUTHERN NEZ PERCE COUNTIES-NORTHEAST BLUE MOUNTAINS-
LOWER GARFIELD AND ASOTIN COUNTIES-WASHINGTON PALOUSE-
SPOKANE AREA-
427 PM PDT FRI MAR 27 2009

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

.DAY ONE...TONIGHT

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

A STRONG STORM SYSTEM WILL MOVE INTO THE REGION LATE SATURDAY...WITH
THE POSSIBILITY FOR SIGNIFICANT SNOWS ACROSS THE SPOKANE REGION
AS WELL AS THE IDAHO PALOUSE SATURDAY NIGHT AND SUNDAY. IN
ADDITION...VERY GUSTY WINDS AROUND 45 MPH WILL DEVELOP SATURDAY
NIGHT AND LAST THROUGH SUNDAY AFTERNOON.

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 28, 3:25 AM PDTWinter Storm WatchOTXLewis, Nez Perce12 hr
Mar 28, 9:29 AM PDTWinter Weather AdvisoryOTXBenewah, Bonner, Boundary, Kootenai, Latah, Nez Perce25 hr
Mar 28, 3:42 AM PDTWind AdvisoryOTXAdams, Chelan, Douglas, Grant, Lincoln, Okanogan24 hr

Nearby

Winter Storm Warnings in Idaho, 2009Winter Storm Warnings in Washington, 2009Every winter storm warning in 2009

Sources

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