Alert archive / Idaho / Winter Storm Warnings in 2011

Winter Storm Warning 3, NWS Spokane, WA

January 21, 20114 counties in Idaho

NWS Spokane, WA issued this winter storm warning at Jan 21, 2011, 4:48 AM PST for 4 counties in Idaho. It took effect at Jan 21, 2011, 12:00 PM PST. It was in force for 8 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
Jan 21, 2011, 4:48 AM PST (12:48 UTC)
In effect from
Jan 21, 2011, 12:00 PM PST
Expired
Jan 21, 2011, 7:32 PM PST
In force
8 hr
Issued by
NWS Spokane, WA

Counties Benewah County, ID, Kootenai County, ID, Latah County, ID, Shoshone County, ID

The radar

The Spokane radar (KOTX), 97 km from the middle of the area, began a volume at 12:49 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, 0.8 hours before the alert went out and 49 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 2011-01-21Temperature 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 2011-01-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 162 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
619 m above ground
0-6 km bulk shear
63 kt
0-1 km storm-relative helicity
162 m²/s²
0-3 km storm-relative helicity
211 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.

779 
WWUS46 KOTX 211248
WSWOTX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SPOKANE WA
448 AM PST FRI JAN 21 2011

...HEAVY SNOW OVER THE CENTRAL IDAHO PANHANDLE MOUNTAINS THIS
AFTERNOON INTO TONIGHT...

.A FAST MOVING STORM SYSTEM WILL BRING RAPID SNOW ACCUMULATIONS TO
THE CENTRAL IDAHO PANHANDLE THIS AFTERNOON AND THIS EVENING. THE
HEAVIEST ACCUMULATIONS WILL BE ABOVE 4000 FEET...INCLUDING LOOKOUT
PASS ON INTERSTATE 90.

IDZ004-212100-
/O.NEW.KOTX.WS.W.0003.110121T1900Z-110122T1200Z/
CENTRAL PANHANDLE MOUNTAINS-
INCLUDING THE FOLLOWING LOCATIONS...MULLAN...LOOKOUT PASS
448 AM PST FRI JAN 21 2011

...WINTER STORM WARNING IN EFFECT FROM 11 AM THIS MORNING TO 4 AM
PST SATURDAY ABOVE 4000 FEET...

THE NATIONAL WEATHER SERVICE IN SPOKANE HAS ISSUED A WINTER STORM
WARNING ABOVE 4000 FEET FOR HEAVY SNOW...WHICH IS IN EFFECT FROM
11 AM THIS MORNING TO 4 AM PST SATURDAY.


* SNOW ACCUMULATIONS: 6 TO 10 INCHES.

* ELEVATION: ABOVE 4000 FEET.

* TIMING: SNOW WILL BEGIN BY EARLY THIS AFTERNOON. SNOW WILL BE
  HEAVY AT TIMES THIS AFTERNOON AND THIS EVENING...BEFORE
  DECREASING TO SNOW SHOWERS LATE TONIGHT.

* LOCATIONS INCLUDE: MULLAN...LOOKOUT PASS

* WINDS: WEST 15 TO 25 MPH THIS EVENING. GUSTS AS HIGH AS 40 MPH
  ON THE EXPOSED MOUNTAIN RIDGES.

* IMPACTS: TRAVEL ON INTERSTATE 90 WILL BE IMPACTED THIS AFTERNOON
  THROUGH TONIGHT. THE HEAVIEST ACCUMULATIONS WILL BE ABOVE 4000
  FEET...WHICH INCLUDES LOOKOUT PASS. THE ELEVATION OF LOOKOUT
  PASS IS ABOUT 4700 FEET.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR ELEVATIONS ABOVE 4000 FEET MEANS THAT
TRAVEL THROUGH THE MOUNTAINS WILL BE DANGEROUS OR IMPOSSIBLE. EVEN
THOUGH ROAD CONDITIONS MAY BE GOOD IN THE VALLEYS AND LOW
ELEVATIONS...DRIVING ACROSS THE PASSES IS NOT RECOMMENDED.

&&

$$
7 follow-up statements
121 
WWUS46 KOTX 211447
WSWOTX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SPOKANE WA
647 AM PST FRI JAN 21 2011

...HEAVY SNOW OVER THE CENTRAL IDAHO PANHANDLE MOUNTAINS THIS
AFTERNOON INTO TONIGHT...

.THIS MORNING...A BAND OF FREEZING RAIN WILL PRODUCE A LIGHT GLAZE
OF ICE TO PORTIONS OF THE UPPER COLUMBIA BASIN...THE WATERVILLE
PLATEAU...AND AROUND THE MOSES LAKE AREA.

FOR THIS AFTERNOON AND TONIGHT...A FAST MOVING STORM SYSTEM WILL
BRING RAPID SNOW ACCUMULATIONS TO THE CENTRAL IDAHO PANHANDLE.
THE HEAVIEST ACCUMULATIONS WILL BE ABOVE 4000 FEET...INCLUDING
LOOKOUT PASS ON INTERSTATE 90.

IDZ004-212300-
/O.CON.KOTX.WS.W.0003.110121T1900Z-110122T1200Z/
CENTRAL PANHANDLE MOUNTAINS-
INCLUDING THE FOLLOWING LOCATIONS...MULLAN...LOOKOUT PASS
647 AM PST FRI JAN 21 2011

...WINTER STORM WARNING REMAINS IN EFFECT FROM 11 AM THIS MORNING
TO 4 AM PST SATURDAY ABOVE 4000 FEET...

A WINTER STORM WARNING ABOVE 4000 FEET REMAINS IN EFFECT FROM
11 AM THIS MORNING TO 4 AM PST SATURDAY. 

* SNOW ACCUMULATIONS: 6 TO 10 INCHES.

* ELEVATION: ABOVE 4000 FEET.

* TIMING: SNOW WILL BEGIN BY EARLY THIS AFTERNOON. SNOW WILL BE 
  HEAVY AT TIMES THIS AFTERNOON AND THIS EVENING...BEFORE 
  DECREASING TO SNOW SHOWERS LATE TONIGHT.

* LOCATIONS INCLUDE: MULLAN...LOOKOUT PASS

* WINDS: WEST 15 TO 25 MPH THIS EVENING. GUSTS AS HIGH AS 40 
  MPH ON THE EXPOSED MOUNTAIN RIDGES. 

* IMPACTS: TRAVEL ON INTERSTATE 90 WILL BE IMPACTED THIS
  AFTERNOON THROUGH TONIGHT. THE HEAVIEST ACCUMULATIONS WILL 
  BE ABOVE 4000 FEET...WHICH INCLUDES LOOKOUT PASS. THE 
  ELEVATION OF LOOKOUT PASS IS ABOUT 4700 FEET. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR ELEVATIONS ABOVE 4000 FEET MEANS THAT
TRAVEL THROUGH THE MOUNTAINS WILL BE DANGEROUS OR IMPOSSIBLE.
EVEN THOUGH ROAD CONDITIONS MAY BE GOOD IN THE VALLEYS AND LOW
ELEVATIONS...DRIVING ACROSS THE PASSES IS NOT RECOMMENDED.

&&

$$

WAZ034-035-044-211900-
/O.NEW.KOTX.ZR.Y.0002.110121T1447Z-110121T1900Z/
MOSES LAKE AREA-UPPER COLUMBIA BASIN-WATERVILLE PLATEAU-
INCLUDING THE FOLLOWING LOCATIONS...MOSES LAKE...EPHRATA...
OTHELLO...RITZVILLE...GRAND COULEE...ODESSA...WILBUR...
COULEE CITY
647 AM PST FRI JAN 21 2011

...FREEZING RAIN ADVISORY IN EFFECT UNTIL 11 AM PST THIS
MORNING...

THE NATIONAL WEATHER SERVICE IN SPOKANE HAS ISSUED A FREEZING
RAIN ADVISORY...WHICH IS IN EFFECT UNTIL 11 AM PST THIS MORNING. 

* ICE ACCUMULATIONS: UP TO A TENTH OF AN INCH AROUND OTHELLO...
  RITZVILLE...ODESSA....AND WILBUR.

* TIMING: PERIODS OF FREEZING RAIN THROUGH LATE MORNING.
  TEMPERATURES WILL CLIMB ABOVE FREEZING BY NOON.

* LOCATIONS INCLUDE: RITZVILLE...GRAND COULEE...ODESSA...
  WILBUR...COULEE CITY...MOSES LAKE...EPHRATA...OTHELLO

* IMPACTS: A LIGHT GLAZE OF ICE CAN BE EXPECTED ON CARS...
  SIDEWALKS...PARKING LOTS...AND UNTREATED ROADS.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FREEZING RAIN ADVISORY MEANS THAT PERIODS OF FREEZING RAIN OR
FREEZING DRIZZLE WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR
SLIPPERY ROADS. SLOW DOWN AND USE CAUTION WHILE DRIVING.

&&

$$
903 
WWUS46 KOTX 211619 AAA
WSWOTX

URGENT - WINTER WEATHER MESSAGE...UPDATED
NATIONAL WEATHER SERVICE SPOKANE WA
819 AM PST FRI JAN 21 2011

...HEAVY SNOW OVER THE CENTRAL IDAHO PANHANDLE MOUNTAINS THIS
AFTERNOON INTO TONIGHT...

.THIS MORNING...A BAND OF FREEZING RAIN WILL PRODUCE A LIGHT
GLAZE OF ICE TO PORTIONS OF THE UPPER COLUMBIA BASIN...THE
WATERVILLE PLATEAU...THE MOSES LAKE AREA...AND THE SPOKANE REGION. 

FOR THIS AFTERNOON AND TONIGHT...A FAST MOVING STORM SYSTEM WILL
BRING RAPID SNOW ACCUMULATIONS TO THE CENTRAL IDAHO PANHANDLE.
THE HEAVIEST ACCUMULATIONS WILL BE ABOVE 4000 FEET...INCLUDING
LOOKOUT PASS ON INTERSTATE 90.

IDZ004-220030-
/O.EXT.KOTX.WS.W.0003.110121T2000Z-110122T1200Z/
CENTRAL PANHANDLE MOUNTAINS-
INCLUDING THE FOLLOWING LOCATIONS...MULLAN...LOOKOUT PASS
819 AM PST FRI JAN 21 2011

...WINTER STORM WARNING NOW IN EFFECT FROM NOON TODAY TO 4 AM PST
SATURDAY ABOVE 4000 FEET...

THE WINTER STORM WARNING ABOVE 4000 FEET IS NOW IN EFFECT FROM
NOON TODAY TO 4 AM PST SATURDAY. 

* SNOW ACCUMULATIONS: 6 TO 10 INCHES.

* ELEVATION: ABOVE 4000 FEET.

* TIMING: SNOW WILL BEGIN BY EARLY THIS AFTERNOON. SNOW WILL BE 
  HEAVY AT TIMES THIS AFTERNOON AND THIS EVENING...BEFORE 
  DECREASING TO SNOW SHOWERS LATE TONIGHT.

* LOCATIONS INCLUDE: MULLAN...LOOKOUT PASS

* WINDS: WEST 15 TO 25 MPH THIS EVENING. GUSTS AS HIGH AS 40 
  MPH ON THE EXPOSED MOUNTAIN RIDGES.

* IMPACTS: TRAVEL ON INTERSTATE 90 WILL BE IMPACTED THIS 
  AFTERNOON THROUGH TONIGHT. THE HEAVIEST ACCUMULATIONS WILL 
  BE ABOVE 4000 FEET...WHICH INCLUDES LOOKOUT PASS. THE 
  ELEVATION OF LOOKOUT PASS IS ABOUT 4700 FEET.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR ELEVATIONS ABOVE 4000 FEET MEANS THAT
TRAVEL THROUGH THE MOUNTAINS WILL BE DANGEROUS OR IMPOSSIBLE.
EVEN THOUGH ROAD CONDITIONS MAY BE GOOD IN THE VALLEYS AND LOW
ELEVATIONS...DRIVING ACROSS THE PASSES IS NOT RECOMMENDED.

&&

$$

IDZ001>003-WAZ033-036>038-212000-
/O.EXB.KOTX.ZR.Y.0002.000000T0000Z-110121T2000Z/
NORTHERN PANHANDLE-COEUR D'ALENE AREA-IDAHO PALOUSE-
WASHINGTON PALOUSE-SPOKANE AREA-NORTHEAST MOUNTAINS-
OKANOGAN HIGHLANDS-
INCLUDING THE FOLLOWING LOCATIONS...RATHDRUM...PRIEST RIVER...
COEUR D'ALENE...POST FALLS...HAYDEN...WORLEY...PLUMMER...
ROSALIA...TEKOA...SPOKANE...CHENEY...DAVENPORT...ROCKFORD...
DEER PARK...CHEWELAH...NEWPORT...SPRINGDALE-HUNTERS ROAD...
FLOWERY TRAIL ROAD
819 AM PST FRI JAN 21 2011

...FREEZING RAIN ADVISORY IN EFFECT UNTIL NOON PST TODAY...

THE NATIONAL WEATHER SERVICE IN SPOKANE HAS ISSUED A FREEZING
RAIN ADVISORY...WHICH IS IN EFFECT UNTIL NOON PST TODAY. 

* ICE ACCUMULATIONS: UP TO A TENTH OF AN INCH AROUND OTHELLO...
  RITZVILLE...ODESSA....WILBUR AND SPOKANE TO THE SOUTHERN PARTS
  OF BONNER COUNTY...STEVENS COUNTY...PEND OREILLE COUNTY AND
  FERRY COUNTY. 

* TIMING: PERIODS OF FREEZING RAIN THROUGH LATE MORNING. POCKETS
  OF SLEET WILL ALSO BE POSSIBLE. TEMPERATURES WILL CLIMB ABOVE
  FREEZING BY NOON.

* LOCATIONS INCLUDE: RITZVILLE...GRAND COULEE...ODESSA...
  WILBUR...COULEE CITY...MOSES LAKE...EPHRATA...OTHELLO...AND THE
  SPOKANE REGION NORTH TO THE SOUTHERN PARTS OF BONNER
  COUNTY...STEVENS COUNTY...PEND OREILLE COUNTY AND FERRY COUNTY. 

* IMPACTS: A LIGHT GLAZE OF ICE CAN BE EXPECTED ON CARS... 
  SIDEWALKS...PARKING LOTS...AND UNTREATED ROADS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FREEZING RAIN ADVISORY MEANS THAT PERIODS OF FREEZING RAIN OR
FREEZING DRIZZLE WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR
SLIPPERY ROADS. SLOW DOWN AND USE CAUTION WHILE DRIVING.

&&

$$

WAZ034-035-044-212000-
/O.EXT.KOTX.ZR.Y.0002.000000T0000Z-110121T2000Z/
MOSES LAKE AREA-UPPER COLUMBIA BASIN-WATERVILLE PLATEAU-
INCLUDING THE FOLLOWING LOCATIONS...MOSES LAKE...EPHRATA...
OTHELLO...RITZVILLE...GRAND COULEE...ODESSA...WILBUR...
COULEE CITY
819 AM PST FRI JAN 21 2011

...FREEZING RAIN ADVISORY NOW IN EFFECT UNTIL NOON PST TODAY...

THE FREEZING RAIN ADVISORY IS NOW IN EFFECT UNTIL NOON PST TODAY.

* ICE ACCUMULATIONS: UP TO A TENTH OF AN INCH AROUND OTHELLO... 
  RITZVILLE...ODESSA....AND WILBUR.

* TIMING: PERIODS OF FREEZING RAIN THROUGH LATE MORNING. 
  TEMPERATURES WILL CLIMB ABOVE FREEZING BY NOON.

* LOCATIONS INCLUDE: RITZVILLE...GRAND COULEE...ODESSA... 
  WILBUR...COULEE CITY...MOSES LAKE...EPHRATA...OTHELLO

* IMPACTS: A LIGHT GLAZE OF ICE CAN BE EXPECTED ON CARS... 
  SIDEWALKS...PARKING LOTS...AND UNTREATED ROADS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FREEZING RAIN ADVISORY MEANS THAT PERIODS OF FREEZING RAIN OR
FREEZING DRIZZLE WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR
SLIPPERY ROADS. SLOW DOWN AND USE CAUTION WHILE DRIVING.

&&

$$
154 
WWUS46 KOTX 211950
WSWOTX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SPOKANE WA
1150 AM PST FRI JAN 21 2011

...HEAVY SNOW OVER THE CENTRAL IDAHO PANHANDLE MOUNTAINS THIS
AFTERNOON INTO TONIGHT...WITH A COMBINATION OF SNOW...SLEET AND
FREEZING RAIN TODAY FOR NORTHEAST WASHINGTON AND THE NORTH IDAHO
PANHANDLE...

FOR THIS AFTERNOON AND TONIGHT...A FAST MOVING STORM SYSTEM WILL
BRING RAPID SNOW ACCUMULATIONS TO THE CENTRAL IDAHO PANHANDLE. THE
HEAVIEST ACCUMULATIONS WILL BE ABOVE 4000 FEET...INCLUDING LOOKOUT
PASS ON INTERSTATE 90.

IDZ001-WAZ037-220000-
/O.CAN.KOTX.ZR.Y.0002.000000T0000Z-110121T2000Z/
/O.NEW.KOTX.WW.Y.0007.110121T1950Z-110122T0000Z/
NORTHERN PANHANDLE-NORTHEAST MOUNTAINS-
INCLUDING THE FOLLOWING LOCATIONS...SANDPOINT...RATHDRUM...
BONNERS FERRY...PRIEST RIVER...SCHWEITZER MOUNTAIN ROAD...
COLVILLE...DEER PARK...CHEWELAH...NEWPORT...KETTLE FALLS...
SPRINGDALE-HUNTERS ROAD...ORIN-RICE ROAD...FLOWERY TRAIL ROAD
1150 AM PST FRI JAN 21 2011

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 4 PM PST THIS
AFTERNOON...
...FREEZING RAIN ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN SPOKANE HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW AND POCKETS OF SLEET OR FREEZING
RAIN...WHICH IS IN EFFECT UNTIL 4 PM PST THIS AFTERNOON. 

* ICE ACCUMULATIONS: LESS THAN A TENTH OF AN INCH OF ICE CAN BE
  EXPECTED. 

* SNOW ACCUMULATIONS: 1 TO 3 INCHES WILL BE LIKELY IN THE
  VALLEYS...WITH 3 TO 5 INCHES IN THE MOUNTAINS.

* TIMING: PERIODS OF FREEZING RAIN AND SNOW THROUGH TODAY. POCKETS
  OF SLEET WILL ALSO BE POSSIBLE. SNOW ACCUMULATIONS OF 1 TO 3 INCHES
  WILL BE LIKELY IN THE VALLEYS...WITH 3 TO 5 INCHES IN THE
  MOUNTAINS. TEMPERATURES WILL CLIMB ABOVE FREEZING FOR MOST TOWNS
  BY LATE AFTERNOON AS THE RAIN DEVELOPS ACROSS THE SOUTH PARTS OF
  PEND OREILLE COUNTY...STEVENS COUNTY AND AND MUCH OF BONNER
  COUNTY.

* LOCATIONS INCLUDE: SANDPOINT...RATHDRUM...BONNERS FERRY...
  PRIEST RIVER...SCHWEITZER MOUNTAIN ROAD...COLVILLE... DEER 
  PARK...CHEWELAH...NEWPORT...KETTLE FALLS... 
  SPRINGDALE-HUNTERS ROAD...ORIN-RICE ROAD...FLOWERY TRAIL 
  ROAD 

* IMPACTS: A LIGHT GLAZE OF ICE CAN BE EXPECTED ON CARS...
  SIDEWALKS...PARKING LOTS...AND UNTREATED ROADS. SNOW AND POCKETS
  OF SLEET WILL ALSO CONTRIBUTE TO HAZARDOUS ROADS.

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.

&&

$$

IDZ003-WAZ033>035-044-212100-
/O.CAN.KOTX.ZR.Y.0002.000000T0000Z-110121T2000Z/
IDAHO PALOUSE-WASHINGTON PALOUSE-MOSES LAKE AREA-
UPPER COLUMBIA BASIN-WATERVILLE PLATEAU-
INCLUDING THE FOLLOWING LOCATIONS...PLUMMER...ROSALIA...TEKOA...
MOSES LAKE...EPHRATA...OTHELLO...RITZVILLE...GRAND COULEE...
ODESSA...WILBUR...COULEE CITY
1150 AM PST FRI JAN 21 2011

...FREEZING RAIN ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN SPOKANE HAS CANCELLED THE
FREEZING RAIN ADVISORY. 

THOUGH POCKETS OF LIGHT FREEZING RAIN WILL BE POSSIBLE ACROSS THE
FAR NORTHERN PARTS OF GRANT AND LINCOLN COUNTY THROUGH MIDDAY
BEFORE TRANSITIONING THE RAIN...THE FREEZING PRECIPITATION
COVERAGE IS NOT EXPECTED TO BE WIDESPREAD. HIGHWAY 2 WILL STILL BE
UNDER THE THREAT OF FREEZING RAIN THROUGH MIDDAY BEFORE
TRANSITIONING THE RAIN.

$$

IDZ004-220400-
/O.CON.KOTX.WS.W.0003.110121T2000Z-110122T1200Z/
CENTRAL PANHANDLE MOUNTAINS-
INCLUDING THE FOLLOWING LOCATIONS...MULLAN...LOOKOUT PASS
1150 AM PST FRI JAN 21 2011

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 AM PST SATURDAY
ABOVE 4000 FEET...

A WINTER STORM WARNING ABOVE 4000 FEET REMAINS IN EFFECT UNTIL
4 AM PST SATURDAY. 

* SNOW ACCUMULATIONS: 6 TO 10 INCHES.

* ELEVATION: ABOVE 4000 FEET.

* TIMING: SNOW WILL BEGIN BY EARLY THIS AFTERNOON. SNOW WILL BE 
  HEAVY AT TIMES THIS AFTERNOON AND THIS EVENING...BEFORE 
  DECREASING TO SNOW SHOWERS LATE TONIGHT.

* LOCATIONS INCLUDE: MULLAN...LOOKOUT PASS

* WINDS: WEST 15 TO 25 MPH THIS EVENING. GUSTS AS HIGH AS 40 
  MPH ON THE EXPOSED MOUNTAIN RIDGES.

* IMPACTS: TRAVEL ON INTERSTATE 90 WILL BE IMPACTED THIS 
  AFTERNOON THROUGH TONIGHT. THE HEAVIEST ACCUMULATIONS WILL 
  BE ABOVE 4000 FEET...WHICH INCLUDES LOOKOUT PASS. THE 
  ELEVATION OF LOOKOUT PASS IS ABOUT 4700 FEET.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR ELEVATIONS ABOVE 4000 FEET MEANS THAT
TRAVEL THROUGH THE MOUNTAINS WILL BE DANGEROUS OR IMPOSSIBLE.
EVEN THOUGH ROAD CONDITIONS MAY BE GOOD IN THE VALLEYS AND LOW
ELEVATIONS...DRIVING ACROSS THE PASSES IS NOT RECOMMENDED.

&&

$$

IDZ002-WAZ036-038-212100-
/O.EXT.KOTX.ZR.Y.0002.000000T0000Z-110121T2100Z/
COEUR D'ALENE AREA-SPOKANE AREA-OKANOGAN HIGHLANDS-
INCLUDING THE FOLLOWING LOCATIONS...COEUR D'ALENE...POST FALLS...
HAYDEN...SPOKANE...DAVENPORT
1150 AM PST FRI JAN 21 2011

...FREEZING RAIN ADVISORY NOW IN EFFECT UNTIL 1 PM PST THIS
AFTERNOON...

THE FREEZING RAIN ADVISORY IS NOW IN EFFECT UNTIL 1 PM PST THIS
AFTERNOON. 

* ICE ACCUMULATIONS: UP TO A TENTH OF AN INCH ACROSS THE SOUTHERN
  PARTS OF STEVENS COUNTY...PEND OREILLE COUNTY AND FERRY COUNTY.
  THIS INCLUDES SPOKANE AND COEUR D'ALENE.

* TIMING: PERIODS OF FREEZING RAIN THROUGH MIDDAY. POCKETS OF
  SLEET WILL ALSO BE POSSIBLE. TEMPERATURES WILL CLIMB ABOVE
  FREEZING BY MIDDAY AND THE PRECIPITATION IS EXPECTED TO THEN
  TRANSITION TO RAIN. 

* LOCATIONS INCLUDE: COEUR D'ALENE...POST FALLS...HAYDEN...
  SPOKANE...DAVENPORT 

* IMPACTS: A LIGHT GLAZE OF ICE CAN BE EXPECTED ON CARS...
  SIDEWALKS...PARKING LOTS...AND UNTREATED ROADS. THIS INCLUDES
  PARTS OF INTERSTATE 90.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FREEZING RAIN ADVISORY MEANS THAT PERIODS OF FREEZING RAIN OR
FREEZING DRIZZLE WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR
SLIPPERY ROADS. SLOW DOWN AND USE CAUTION WHILE DRIVING.

&&

$$
469 
WWUS46 KOTX 212053 AAB
WSWOTX

URGENT - WINTER WEATHER MESSAGE...UPDATED
NATIONAL WEATHER SERVICE SPOKANE WA
1253 PM PST FRI JAN 21 2011

...HEAVY SNOW OVER THE CENTRAL IDAHO PANHANDLE MOUNTAINS THIS
AFTERNOON INTO TONIGHT...WITH A COMBINATION OF SNOW...SLEET AND
FREEZING RAIN TODAY FOR NORTHEAST WASHINGTON AND THE NORTH IDAHO
PANHANDLE...

FOR THIS AFTERNOON AND TONIGHT...A FAST MOVING STORM SYSTEM WILL
BRING RAPID SNOW ACCUMULATIONS TO THE CENTRAL IDAHO PANHANDLE.
THE HEAVIEST ACCUMULATIONS WILL BE ABOVE 4000 FEET...INCLUDING
LOOKOUT PASS ON INTERSTATE 90.

IDZ002-WAZ036-038-212200-
/O.CAN.KOTX.ZR.Y.0002.000000T0000Z-110121T2100Z/
COEUR D'ALENE AREA-SPOKANE AREA-OKANOGAN HIGHLANDS-
INCLUDING THE FOLLOWING LOCATIONS...COEUR D'ALENE...POST FALLS...
HAYDEN...SPOKANE...DAVENPORT
1253 PM PST FRI JAN 21 2011

...FREEZING RAIN ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN SPOKANE HAS CANCELLED THE
FREEZING RAIN ADVISORY. 

TEMPERATURES HAVE WARMED INTO THE LOWER TO MID 30S...AND ARE
EXPECTED TO BE REACH THE MID 30S FOR ALL TOWNS THIS AFTERNOON.
FREEZING RAIN IS NO LONGER EXPECTED.  

$$

IDZ004-220500-
/O.CON.KOTX.WS.W.0003.000000T0000Z-110122T1200Z/
CENTRAL PANHANDLE MOUNTAINS-
INCLUDING THE FOLLOWING LOCATIONS...MULLAN...LOOKOUT PASS
1253 PM PST FRI JAN 21 2011

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 AM PST SATURDAY
ABOVE 4000 FEET...

A WINTER STORM WARNING ABOVE 4000 FEET REMAINS IN EFFECT UNTIL
4 AM PST SATURDAY. 

* SNOW ACCUMULATIONS: 6 TO 10 INCHES.

* ELEVATION: ABOVE 4000 FEET.

* TIMING: SNOW WILL BEGIN BY EARLY THIS AFTERNOON. SNOW WILL BE 
  HEAVY AT TIMES THIS AFTERNOON AND THIS EVENING...BEFORE 
  DECREASING TO SNOW SHOWERS LATE TONIGHT.

* LOCATIONS INCLUDE: MULLAN...LOOKOUT PASS

* WINDS: WEST 15 TO 25 MPH THIS EVENING. GUSTS AS HIGH AS 40 
  MPH ON THE EXPOSED MOUNTAIN RIDGES.

* IMPACTS: TRAVEL ON INTERSTATE 90 WILL BE IMPACTED THIS 
  AFTERNOON THROUGH TONIGHT. THE HEAVIEST ACCUMULATIONS WILL 
  BE ABOVE 4000 FEET...WHICH INCLUDES LOOKOUT PASS. THE 
  ELEVATION OF LOOKOUT PASS IS ABOUT 4700 FEET.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR ELEVATIONS ABOVE 4000 FEET MEANS THAT
TRAVEL THROUGH THE MOUNTAINS WILL BE DANGEROUS OR IMPOSSIBLE.
EVEN THOUGH ROAD CONDITIONS MAY BE GOOD IN THE VALLEYS AND LOW
ELEVATIONS...DRIVING ACROSS THE PASSES IS NOT RECOMMENDED.

&&

$$

IDZ001-WAZ037-220000-
/O.CON.KOTX.WW.Y.0007.000000T0000Z-110122T0000Z/
NORTHERN PANHANDLE-NORTHEAST MOUNTAINS-
INCLUDING THE FOLLOWING LOCATIONS...SANDPOINT...RATHDRUM...
BONNERS FERRY...PRIEST RIVER...SCHWEITZER MOUNTAIN ROAD...
COLVILLE...DEER PARK...CHEWELAH...NEWPORT...KETTLE FALLS...
SPRINGDALE-HUNTERS ROAD...ORIN-RICE ROAD...FLOWERY TRAIL ROAD
1253 PM PST FRI JAN 21 2011

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 PM PST THIS
AFTERNOON...

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

* ICE ACCUMULATIONS: LESS THAN A TENTH OF AN INCH OF ICE CAN BE 
  EXPECTED.

* SNOW ACCUMULATIONS: 1 TO 3 INCHES WILL BE LIKELY IN THE 
  VALLEYS...WITH 3 TO 5 INCHES IN THE MOUNTAINS.

* TIMING: PERIODS OF FREEZING RAIN AND SNOW THROUGH TODAY.
  POCKETS OF SLEET WILL ALSO BE POSSIBLE. SNOW ACCUMULATIONS 
  OF 1 TO 3 INCHES WILL BE LIKELY IN THE VALLEYS...WITH 3 TO 5 
  INCHES IN THE MOUNTAINS. TEMPERATURES WILL CLIMB ABOVE 
  FREEZING FOR MOST TOWNS BY LATE AFTERNOON AS THE RAIN 
  DEVELOPS ACROSS THE SOUTH PARTS OF PEND OREILLE COUNTY...
  STEVENS COUNTY AND AND MUCH OF BONNER COUNTY. 

* LOCATIONS INCLUDE: SANDPOINT...RATHDRUM...BONNERS FERRY... 
  PRIEST RIVER...SCHWEITZER MOUNTAIN ROAD...COLVILLE... DEER 
  PARK...CHEWELAH...NEWPORT...KETTLE FALLS... 
  SPRINGDALE-HUNTERS ROAD...ORIN-RICE ROAD...FLOWERY TRAIL 
  ROAD 

* IMPACTS: A LIGHT GLAZE OF ICE CAN BE EXPECTED ON CARS... 
  SIDEWALKS...PARKING LOTS...AND UNTREATED ROADS. SNOW AND 
  POCKETS OF SLEET WILL ALSO CONTRIBUTE TO HAZARDOUS ROADS. 

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.

&&

$$
437 
WWUS46 KOTX 212143 AAC
WSWOTX

URGENT - WINTER WEATHER MESSAGE...UPDATED
NATIONAL WEATHER SERVICE SPOKANE WA
143 PM PST FRI JAN 21 2011

...A FAST MOVING STORM SYSTEM WILL PRODUCE HEAVY VALLEY AND
MOUNTAIN SNOW ACCUMULATIONS TO NORTHEAST WASHINGTON AND THE NORTH
IDAHO PANHANDLE....WITH A SLIGHT CHANCE OF FREEZING RAIN. FOR THE
CENTRAL IDAHO PANHANDLE THE HEAVIEST ACCUMULATIONS WILL BE ABOVE
4000 FEET TONIGHT...INCLUDING LOOKOUT PASS ON INTERSTATE 90.

IDZ004-220545-
/O.CON.KOTX.WS.W.0003.000000T0000Z-110122T1200Z/
CENTRAL PANHANDLE MOUNTAINS-
INCLUDING THE FOLLOWING LOCATIONS...MULLAN...LOOKOUT PASS
143 PM PST FRI JAN 21 2011

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 AM PST SATURDAY
ABOVE 4000 FEET...

A WINTER STORM WARNING ABOVE 4000 FEET REMAINS IN EFFECT UNTIL
4 AM PST SATURDAY. 

* SNOW ACCUMULATIONS: 6 TO 10 INCHES.

* ELEVATION: ABOVE 4000 FEET.

* TIMING: SNOW WILL BEGIN BY EARLY THIS AFTERNOON. SNOW WILL BE 
  HEAVY AT TIMES THIS AFTERNOON AND THIS EVENING...BEFORE 
  DECREASING TO SNOW SHOWERS LATE TONIGHT.

* LOCATIONS INCLUDE: MULLAN...LOOKOUT PASS

* WINDS: WEST 15 TO 25 MPH THIS EVENING. GUSTS AS HIGH AS 40 
  MPH ON THE EXPOSED MOUNTAIN RIDGES.

* IMPACTS: TRAVEL ON INTERSTATE 90 WILL BE IMPACTED THIS 
  AFTERNOON THROUGH TONIGHT. THE HEAVIEST ACCUMULATIONS WILL 
  BE ABOVE 4000 FEET...WHICH INCLUDES LOOKOUT PASS. THE 
  ELEVATION OF LOOKOUT PASS IS ABOUT 4700 FEET.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR ELEVATIONS ABOVE 4000 FEET MEANS THAT
TRAVEL THROUGH THE MOUNTAINS WILL BE DANGEROUS OR IMPOSSIBLE.
EVEN THOUGH ROAD CONDITIONS MAY BE GOOD IN THE VALLEYS AND LOW
ELEVATIONS...DRIVING ACROSS THE PASSES IS NOT RECOMMENDED.

&&

$$

IDZ001-WAZ037-220000-
/O.CON.KOTX.WW.Y.0007.000000T0000Z-110122T0000Z/
NORTHERN PANHANDLE-NORTHEAST MOUNTAINS-
INCLUDING THE FOLLOWING LOCATIONS...SANDPOINT...RATHDRUM...
BONNERS FERRY...PRIEST RIVER...SCHWEITZER MOUNTAIN ROAD...
COLVILLE...DEER PARK...CHEWELAH...NEWPORT...KETTLE FALLS...
SPRINGDALE-HUNTERS ROAD...ORIN-RICE ROAD...FLOWERY TRAIL ROAD
143 PM PST FRI JAN 21 2011

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 PM PST THIS
AFTERNOON...

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

* ICE ACCUMULATIONS: LESS THAN A TENTH OF AN INCH OF ICE CAN BE 
  EXPECTED.

* SNOW ACCUMULATIONS: 1 TO 3 INCHES WILL BE LIKELY IN THE
  VALLEYS...WITH 4 TO 7 INCHES IN THE MOUNTAINS. LOCALIZED VALLEY
  AMOUNTS OF 5 TO 6 INCHES WILL FALL ALONG AND NORTH OF A LINE
  FROM SANDPOINT TO COLVILLE THROUGH LATE AFTERNOON.

* TIMING: PERIODS OF FREEZING RAIN AND SNOW THROUGH TODAY.
  TEMPERATURES WILL CLIMB ABOVE FREEZING FOR MOST TOWNS BY LATE
  AFTERNOON AS RAIN DEVELOPS ACROSS THE SOUTH PARTS OF PEND
  OREILLE COUNTY... STEVENS COUNTY AND MUCH OF BONNER COUNTY.

* LOCATIONS INCLUDE: SANDPOINT...RATHDRUM...BONNERS FERRY... 
  PRIEST RIVER...SCHWEITZER MOUNTAIN ROAD...COLVILLE... DEER 
  PARK...CHEWELAH...NEWPORT...KETTLE FALLS... 
  SPRINGDALE-HUNTERS ROAD...ORIN-RICE ROAD...FLOWERY TRAIL 
  ROAD 

* IMPACTS: A LIGHT GLAZE OF ICE CAN BE EXPECTED ON CARS... 
  SIDEWALKS...PARKING LOTS...AND UNTREATED ROADS. SNOW AND 
  POCKETS OF SLEET WILL ALSO CONTRIBUTE TO HAZARDOUS ROADS.

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.

&&

$$
212 
WWUS46 KOTX 212352 AAA
WSWOTX

URGENT - WINTER WEATHER MESSAGE...UPDATED
NATIONAL WEATHER SERVICE SPOKANE WA
352 PM PST FRI JAN 21 2011

...THOUGH THE FAST MOVING COLD FRONT THAT PRODUCED HEAVY RAINS
AND SNOW TODAY WILL MOVE OUT OF NORTH IDAHO THIS EVENING...LINGERING
SHOWERS WILL PERSIST OVERNIGHT ACROSS THE CENTRAL IDAHO PANHANDLE.
THE HEAVIEST SNOWS WILL BE ABOVE 4000 FEET TONIGHT...INCLUDING
LOOKOUT PASS ON INTERSTATE 90.

IDZ001-WAZ037-220100-
/O.CAN.KOTX.WW.Y.0007.000000T0000Z-110122T0000Z/
NORTHERN PANHANDLE-NORTHEAST MOUNTAINS-
INCLUDING THE FOLLOWING LOCATIONS...SANDPOINT...RATHDRUM...
BONNERS FERRY...PRIEST RIVER...SCHWEITZER MOUNTAIN ROAD...
COLVILLE...DEER PARK...CHEWELAH...NEWPORT...KETTLE FALLS...
SPRINGDALE-HUNTERS ROAD...ORIN-RICE ROAD...FLOWERY TRAIL ROAD
352 PM PST FRI JAN 21 2011

...WINTER WEATHER ADVISORY IS CANCELLED...

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

A FEW LINGERING SNOW SHOWERS IN THE MOUNTAINS OF NORTH IDAHO BORDERING
MONTANA WILL PRODUCE ONLY MINOR ADDITIONAL ACCUMULATIONS THIS
EVENING. EXPECT DRY WEATHER ELSEWHERE. 

$$

IDZ004-220800-
/O.CON.KOTX.WS.W.0003.000000T0000Z-110122T1200Z/
CENTRAL PANHANDLE MOUNTAINS-
INCLUDING THE FOLLOWING LOCATIONS...MULLAN...LOOKOUT PASS
352 PM PST FRI JAN 21 2011

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 AM PST SATURDAY
ABOVE 4000 FEET...

A WINTER STORM WARNING ABOVE 4000 FEET REMAINS IN EFFECT UNTIL
4 AM PST SATURDAY. 

* SNOW ACCUMULATIONS: 6 TO 11 INCHES.

* ELEVATION: ABOVE 4000 FEET.

* TIMING: HEAVY MOUNTAIN SNOW WILL CONTINUE THIS EVENING
  BEFORE DECREASING TO SHOWERS OVERNIGHT. 

* LOCATIONS INCLUDE: MULLAN...LOOKOUT PASS

* WINDS: WEST 15 TO 25 MPH THIS EVENING. GUSTS AS HIGH AS 40 
  MPH ON THE EXPOSED MOUNTAIN RIDGES.

* IMPACTS: TRAVEL ON INTERSTATE 90 WILL BE IMPACTED THIS 
  AFTERNOON THROUGH TONIGHT. THE HEAVIEST ACCUMULATIONS WILL 
  BE ABOVE 4000 FEET...WHICH INCLUDES LOOKOUT PASS. THE 
  ELEVATION OF LOOKOUT PASS IS ABOUT 4700 FEET.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR ELEVATIONS ABOVE 4000 FEET MEANS THAT
TRAVEL THROUGH THE MOUNTAINS WILL BE DANGEROUS OR IMPOSSIBLE.
EVEN THOUGH ROAD CONDITIONS MAY BE GOOD IN THE VALLEYS AND LOW
ELEVATIONS...DRIVING ACROSS THE PASSES IS NOT RECOMMENDED.

&&

$$
738 
WWUS46 KOTX 220332
WSWOTX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SPOKANE WA
732 PM PST FRI JAN 21 2011

...SNOW QUICKLY WINDING DOWN IN THE CENTRAL PANHANDLE...


IDZ004-220445-
/O.CAN.KOTX.WS.W.0003.000000T0000Z-110122T1200Z/
CENTRAL PANHANDLE MOUNTAINS-
INCLUDING THE FOLLOWING LOCATIONS...MULLAN...LOOKOUT PASS
732 PM PST FRI JAN 21 2011

...WINTER STORM WARNING IS CANCELLED...

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

A FRONT HAS PUSHED EAST OF THE CENTRAL PANHANDLE MOUNTAINS...WITH
MUCH DRIER AIR ALOFT MOVING OVER THE AREA FOR THE REST OF THE
NIGHT. THIS WILL RESULT IN SNOWFALL CONTINUING TO DIMINISH TO
SCATTERED SNOW SHOWERS AND FLURRIES THROUGH THE NIGHT WITH ONLY
VERY MINIMAL ADDITIONAL ACCUMULATIONS.

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 21, 6:47 AM PSTFreezing Rain AdvisoryOTXBenewah, Bonner, Boundary, Kootenai, Latah6 hr
Jan 21, 11:50 AM PSTWinter Weather AdvisoryOTXBonner, Boundary, Kootenai4 hr

Nearby

Winter Storm Warnings in Idaho, 2011Every winter storm warning in 2011

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.