Alert archive / Washington / Winter Weather Advisories in 2012
Winter Weather Advisory 13, NWS Spokane, WA
NWS Spokane, WA issued this winter weather advisory at Mar 11, 2012, 3:36 PM PDT for 4 counties in Washington. It took effect at Mar 12, 2012, 5:00 AM PDT. It was in force for 21 hr.
The area
The counties it named.
The facts
- Issued
- Mar 11, 2012, 3:36 PM PDT (22:36 UTC)
- In effect from
- Mar 12, 2012, 5:00 AM PDT
- Expired
- Mar 13, 2012, 1:55 AM PDT
- In force
- 21 hr
- Issued by
- NWS Spokane, WA
Counties Chelan County, WA, Douglas County, WA, Grant County, WA, Okanogan County, WA
The radar
The Spokane radar (KOTX), 169 km from the middle of the area, began a volume at 22:36 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, 10.6 hours before the alert went out and 260 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1119 m above ground
- 0-6 km bulk shear
- 69 kt
- 0-1 km storm-relative helicity
- 65 m²/s²
- 0-3 km storm-relative helicity
- 118 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
331 WWUS46 KOTX 112236 WSWOTX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE SPOKANE WA 336 PM PDT SUN MAR 11 2012 ...LATE WINTER STORM TO BRING SIGNIFICANT SNOW LATE TONIGHT THROUGH MONDAY NIGHT... WAZ038-120645- /O.UPG.KOTX.WS.A.0007.120312T1300Z-120313T0000Z/ /O.NEW.KOTX.WS.W.0008.120312T1200Z-120313T1200Z/ OKANOGAN HIGHLANDS- INCLUDING THE FOLLOWING LOCATIONS...REPUBLIC...INCHELIUM... WAUCONDA...CHESAW ROAD...HIGHWAY 20 WAUCONDA SUMMIT... BOULDER CREEK ROAD...SHERMAN PASS 336 PM PDT SUN MAR 11 2012 ...WINTER STORM WARNING IN EFFECT FROM 5 AM MONDAY TO 5 AM PDT TUESDAY... THE NATIONAL WEATHER SERVICE IN SPOKANE HAS ISSUED A WINTER STORM WARNING FOR SNOW...WHICH IS IN EFFECT FROM 5 AM MONDAY TO 5 AM PDT TUESDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. * SNOW ACCUMULATIONS: 4 TO 7 INCHES OF SNOW IN THE VALLEYS AND 8 TO 14 INCHES IN THE MOUNTAINS. * WINDS: SOUTH 10 TO 20 MPH WITH GUSTS UP TO 35 MPH. * TIMING: STEADY SNOW WILL BEGIN LATE TONIGHT LAST INTO MONDAY EVENING. * LOCATIONS: REPUBLIC...INCHELIUM...WAUCONDA...CHESAW ROAD... HIGHWAY 20 WAUCONDA SUMMIT...BOULDER CREEK ROAD...SHERMAN PASS. * SNOW LEVEL: VALLEY FLOORS MONDAY MORNING...RISING TO 3000 FEET IN THE AFTERNOON. * IMPACTS: HEAVY SNOW ACCUMULATION ON LOWER ELEVATION ROADWAYS WILL MAKE TRAVEL HAZARDOUS THROUGH MIDDAY MONDAY. SHERMAN PASS WILL CONTINUE TO BE HAZARDOUS THROUGH THE ENTIRE EVENT. EXPOSED MOUNTAIN TERRAIN AND RIDGES MAY SEE BLOWING AND DRIFTING SNOW. 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. && $$ WAZ042-120645- /O.UPG.KOTX.WS.A.0007.120312T1300Z-120313T0000Z/ /O.NEW.KOTX.WS.W.0008.120312T1200Z-120313T0600Z/ EAST SLOPES NORTHERN CASCADES- INCLUDING THE FOLLOWING LOCATIONS...LEAVENWORTH...MAZAMA... TWISP...WINTHROP...STEHEKIN...CONCONULLY...BLEWETT PASS... LOUP LOUP PASS 336 PM PDT SUN MAR 11 2012 ...WINTER STORM WARNING IN EFFECT FROM 5 AM TO 11 PM PDT MONDAY... THE NATIONAL WEATHER SERVICE IN SPOKANE HAS ISSUED A WINTER STORM WARNING FOR SNOW...WHICH IS IN EFFECT FROM 5 AM TO 11 PM PDT MONDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. * SNOW ACCUMULATIONS: THE HEAVIEST SNOWS...6 TO 10 INCHES...WILL FALL ACROSS THE METHOW VALLEY...ESPECIALLY THE WESTERN PORTION FROM TWISP TO MAZAMA. LESSER AMOUNTS CAN BE EXPECTED SOUTH OF LAKE CHELAN...WHERE VALLEY TOWNS WILL SEE 4 TO 8 INCHES OF SNOW. * WINDS: SOUTH GUSTS UP TO 40 MPH ON EXPOSED MOUNTAIN RIDGES. * TIMING: STEADY SNOW WILL BEGIN EARLY MONDAY MORNING AND TAPER OFF TO SCATTERED SNOW SHOWERS BY MONDAY EVENING. * LOCATIONS: LEAVENWORTH...MAZAMA...TWISP...WINTHROP... STEHEKIN... CONCONULLY...BLEWETT PASS...LOUP LOUP PASS. * SNOW LEVEL: VALLEY FLOORS. SNOW LEVEL RISING TO 2000 FEET SOUTH OF LAKE CHELAN IN THE AFTERNOON. THIS INCLUDES LEAVENWORTH AND PLAIN. * IMPACTS: HEAVY SNOW ACCUMULATION ON ROADWAYS WILL MAKE TRAVEL HAZARDOUS. ON EXPOSED TERRAIN AND RIDGES BLOWING SNOW WILL CREATE DRIFTS AND LOW VISIBILITIES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ WAZ043-120645- /O.UPG.KOTX.WS.A.0007.120312T1300Z-120313T0000Z/ /O.NEW.KOTX.WW.Y.0013.120312T1200Z-120313T0600Z/ OKANOGAN VALLEY- INCLUDING THE FOLLOWING LOCATIONS...OMAK...OKANOGAN...BREWSTER... BRIDGEPORT...OROVILLE...NESPELEM...DISAUTEL PASS 336 PM PDT SUN MAR 11 2012 ...WINTER WEATHER ADVISORY IN EFFECT FROM 5 AM TO 11 PM PDT MONDAY... THE NATIONAL WEATHER SERVICE IN SPOKANE HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT FROM 5 AM TO 11 PM PDT MONDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. * SNOW ACCUMULATIONS: 2 TO 4 INCHES...ESPECIALLY ABOVE 2000 FEET. * WINDS: SOUTH 10 TO 15 MPH. * TIMING: STEADY SNOW WILL BEGIN EARLY MONDAY MORNING. SNOW LEVELS MAY RISE TO 2500 FEET AFTER NOON WITH RAIN OR A MIX OF PRECIPITATION IN THE OKANOGAN VALLEY FLOOR. PRECIPITATION WILL TAPER OFF TO SCATTERED SHOWERS LATE MONDAY AFTERNOON. * LOCATIONS: OMAK...OKANOGAN...BREWSTER...BRIDGEPORT... OROVILLE... NESPELEM...DISAUTEL PASS. * SNOW LEVEL: RISING TO 2500 FEET. * IMPACTS: HEAVY WET SNOW ACCUMULATION ON ROADWAYS WILL MAKE TRAVEL HAZARDOUS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ WAZ037-120645- /O.NEW.KOTX.WS.A.0008.120312T1800Z-120313T1200Z/ NORTHEAST MOUNTAINS- INCLUDING THE FOLLOWING LOCATIONS...COLVILLE...DEER PARK... CHEWELAH...NEWPORT...KETTLE FALLS...SPRINGDALE-HUNTERS ROAD... ORIN-RICE ROAD...FLOWERY TRAIL ROAD 336 PM PDT SUN MAR 11 2012 ...WINTER STORM WATCH IN EFFECT FROM MONDAY MORNING THROUGH LATE MONDAY NIGHT... THE NATIONAL WEATHER SERVICE IN SPOKANE HAS ISSUED A WINTER STORM WATCH...WHICH IS IN EFFECT FROM MONDAY MORNING THROUGH LATE MONDAY NIGHT. * SNOW ACCUMULATIONS: 6 TO 12 INCHES POSSIBLE IN THE MOUNTAINS ABOVE 3500 FEET. 1 TO 3 INCHES MAY FALL IN THE VALLEYS ABOVE 2500 FEET BEFORE CHANGING TO RAIN IN THE AFTERNOON. * WINDS: SOUTHEAST 10 TO 15 MPH WITH GUSTS UP TO 30 MPH. * LOCATIONS: COLVILLE...DEER PARK...CHEWELAH...NEWPORT...KETTLE FALLS...SPRINGDALE-HUNTERS ROAD...ORIN-RICE ROAD...FLOWERY TRAIL ROAD. * SNOW LEVEL: 2500 FEET. * IMPACTS: HEAVY SNOW ACCUMULATIONS ON ROADWAYS MAY MAKE TRAVEL HAZARDOUS MONDAY AND MONDAY NIGHT MAINLY ABOVE 2500 FEET. EXPOSED MOUNTAIN TERRAIN AND RIDGES MAY SEE BLOWING AND DRIFTING SNOW. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WATCH MEANS THERE IS A POTENTIAL FOR SIGNIFICANT SNOW ACCUMULATIONS THAT MAY IMPACT TRAVEL. CONTINUE TO MONITOR THE LATEST FORECASTS. && $$
9 follow-up statements
425 WWUS46 KOTX 120412 WSWOTX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE SPOKANE WA 912 PM PDT SUN MAR 11 2012 ...LATE WINTER STORM TO BRING SIGNIFICANT SNOW LATE TONIGHT THROUGH MONDAY NIGHT... WAZ038-121230- /O.CON.KOTX.WS.W.0008.120312T1200Z-120313T1200Z/ OKANOGAN HIGHLANDS- INCLUDING THE FOLLOWING LOCATIONS...REPUBLIC...INCHELIUM... WAUCONDA...CHESAW ROAD...HIGHWAY 20 WAUCONDA SUMMIT... BOULDER CREEK ROAD...SHERMAN PASS 912 PM PDT SUN MAR 11 2012 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 5 AM MONDAY TO 5 AM PDT TUESDAY... * SNOW ACCUMULATIONS: 4 TO 7 INCHES OF SNOW IN THE VALLEYS AND 8 TO 14 INCHES IN THE MOUNTAINS. * WINDS: SOUTH 10 TO 20 MPH WITH GUSTS UP TO 35 MPH. * TIMING: STEADY SNOW WILL BEGIN LATE TONIGHT LAST INTO MONDAY EVENING. * LOCATIONS: REPUBLIC...INCHELIUM...WAUCONDA...CHESAW ROAD... HIGHWAY 20 WAUCONDA SUMMIT...BOULDER CREEK ROAD...SHERMAN PASS. * SNOW LEVEL: VALLEY FLOORS MONDAY MORNING...RISING TO 3000 FEET IN THE AFTERNOON. * IMPACTS: HEAVY SNOW ACCUMULATION ON LOWER ELEVATION ROADWAYS WILL MAKE TRAVEL HAZARDOUS THROUGH MIDDAY MONDAY. SHERMAN PASS WILL CONTINUE TO BE HAZARDOUS THROUGH THE ENTIRE EVENT. EXPOSED MOUNTAIN TERRAIN AND RIDGES MAY SEE BLOWING AND DRIFTING SNOW. 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. && $$ WAZ042-121230- /O.CON.KOTX.WS.W.0008.120312T1200Z-120313T0600Z/ EAST SLOPES NORTHERN CASCADES- INCLUDING THE FOLLOWING LOCATIONS...LEAVENWORTH...MAZAMA... TWISP...WINTHROP...STEHEKIN...CONCONULLY...BLEWETT PASS... LOUP LOUP PASS 912 PM PDT SUN MAR 11 2012 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 5 AM TO 11 PM PDT MONDAY... * SNOW ACCUMULATIONS: THE HEAVIEST SNOWS...6 TO 10 INCHES...WILL FALL ACROSS THE METHOW VALLEY...ESPECIALLY THE WESTERN PORTION FROM TWISP TO MAZAMA. LESSER AMOUNTS CAN BE EXPECTED SOUTH OF LAKE CHELAN...WHERE VALLEY TOWNS WILL SEE 4 TO 8 INCHES OF SNOW. * WINDS: SOUTH GUSTS UP TO 40 MPH ON EXPOSED MOUNTAIN RIDGES. * TIMING: STEADY SNOW WILL BEGIN EARLY MONDAY MORNING AND TAPER OFF TO SCATTERED SNOW SHOWERS BY MONDAY EVENING. * LOCATIONS: LEAVENWORTH...MAZAMA...TWISP...WINTHROP... STEHEKIN... CONCONULLY...BLEWETT PASS...LOUP LOUP PASS. * SNOW LEVEL: VALLEY FLOORS. SNOW LEVEL RISING TO 2000 FEET SOUTH OF LAKE CHELAN IN THE AFTERNOON. THIS INCLUDES LEAVENWORTH AND PLAIN. * IMPACTS: HEAVY SNOW ACCUMULATION ON ROADWAYS WILL MAKE TRAVEL HAZARDOUS. ON EXPOSED TERRAIN AND RIDGES BLOWING SNOW WILL CREATE DRIFTS AND LOW VISIBILITIES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ WAZ043-121230- /O.CON.KOTX.WW.Y.0013.120312T1200Z-120313T0600Z/ OKANOGAN VALLEY- INCLUDING THE FOLLOWING LOCATIONS...OMAK...OKANOGAN...BREWSTER... BRIDGEPORT...OROVILLE...NESPELEM...DISAUTEL PASS 912 PM PDT SUN MAR 11 2012 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 5 AM TO 11 PM PDT MONDAY... * SNOW ACCUMULATIONS: 2 TO 4 INCHES...ESPECIALLY ABOVE 2000 FEET. * WINDS: SOUTH 10 TO 15 MPH. * TIMING: STEADY SNOW WILL BEGIN EARLY MONDAY MORNING. SNOW LEVELS MAY RISE TO 2500 FEET AFTER NOON WITH RAIN OR A MIX OF PRECIPITATION IN THE OKANOGAN VALLEY FLOOR. PRECIPITATION WILL TAPER OFF TO SCATTERED SHOWERS LATE MONDAY AFTERNOON. * LOCATIONS: OMAK...OKANOGAN...BREWSTER...BRIDGEPORT... OROVILLE... NESPELEM...DISAUTEL PASS. * SNOW LEVEL: RISING TO 2500 FEET. * IMPACTS: HEAVY WET SNOW ACCUMULATION ON ROADWAYS WILL MAKE TRAVEL HAZARDOUS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ WAZ037-121230- /O.CON.KOTX.WS.A.0008.120312T1800Z-120313T1200Z/ NORTHEAST MOUNTAINS- INCLUDING THE FOLLOWING LOCATIONS...COLVILLE...DEER PARK... CHEWELAH...NEWPORT...KETTLE FALLS...SPRINGDALE-HUNTERS ROAD... ORIN-RICE ROAD...FLOWERY TRAIL ROAD 912 PM PDT SUN MAR 11 2012 ...WINTER STORM WATCH REMAINS IN EFFECT FROM MONDAY MORNING THROUGH LATE MONDAY NIGHT... * SNOW ACCUMULATIONS: 6 TO 12 INCHES POSSIBLE IN THE MOUNTAINS ABOVE 3500 FEET. 1 TO 3 INCHES MAY FALL IN THE VALLEYS ABOVE 2500 FEET BEFORE CHANGING TO RAIN IN THE AFTERNOON. * WINDS: SOUTHEAST 10 TO 15 MPH WITH GUSTS UP TO 30 MPH. * LOCATIONS: COLVILLE...DEER PARK...CHEWELAH...NEWPORT...KETTLE FALLS...SPRINGDALE-HUNTERS ROAD...ORIN-RICE ROAD...FLOWERY TRAIL ROAD. * SNOW LEVEL: 2500 FEET. * IMPACTS: HEAVY SNOW ACCUMULATIONS ON ROADWAYS MAY MAKE TRAVEL HAZARDOUS MONDAY AND MONDAY NIGHT MAINLY ABOVE 2500 FEET. EXPOSED MOUNTAIN TERRAIN AND RIDGES MAY SEE BLOWING AND DRIFTING SNOW. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WATCH MEANS THERE IS A POTENTIAL FOR SIGNIFICANT SNOW ACCUMULATIONS THAT MAY IMPACT TRAVEL. CONTINUE TO MONITOR THE LATEST FORECASTS. && $$
183 WWUS46 KOTX 120424 WSWOTX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE SPOKANE WA 924 PM PDT SUN MAR 11 2012 ...LATE WINTER STORM TO BRING SIGNIFICANT SNOW LATE TONIGHT THROUGH MONDAY NIGHT... WAZ037-121230- /O.UPG.KOTX.WS.A.0008.120312T1800Z-120313T1200Z/ /O.EXB.KOTX.WS.W.0008.120312T1800Z-120313T1200Z/ NORTHEAST MOUNTAINS- INCLUDING THE FOLLOWING LOCATIONS...COLVILLE...DEER PARK... CHEWELAH...NEWPORT...KETTLE FALLS...SPRINGDALE-HUNTERS ROAD... ORIN-RICE ROAD...FLOWERY TRAIL ROAD 924 PM PDT SUN MAR 11 2012 ...WINTER STORM WARNING IN EFFECT FROM 11 AM MONDAY TO 5 AM PDT TUESDAY... THE NATIONAL WEATHER SERVICE IN SPOKANE HAS ISSUED A WINTER STORM WARNING FOR HEAVY SNOW...WHICH IS IN EFFECT FROM 11 AM MONDAY TO 5 AM PDT TUESDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. * SNOW ACCUMULATIONS: 6 TO 12 INCHES POSSIBLE IN THE MOUNTAINS ABOVE 3500 FEET. 1 TO 3 INCHES MAY FALL IN THE VALLEYS ABOVE 2500 FEET BEFORE CHANGING TO RAIN IN THE AFTERNOON. * WINDS: SOUTHEAST 10 TO 15 MPH WITH GUSTS UP TO 30 MPH. * LOCATIONS: COLVILLE...DEER PARK...CHEWELAH...NEWPORT...KETTLE FALLS...SPRINGDALE-HUNTERS ROAD...ORIN-RICE ROAD...FLOWERY TRAIL ROAD. * SNOW LEVEL: 2500 FEET. * IMPACTS: HEAVY SNOW ACCUMULATIONS ON ROADWAYS MAY MAKE TRAVEL HAZARDOUS MONDAY AND MONDAY NIGHT MAINLY ABOVE 2500 FEET. EXPOSED MOUNTAIN TERRAIN AND RIDGES MAY SEE BLOWING AND DRIFTING SNOW. 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. && $$ WAZ038-121230- /O.CON.KOTX.WS.W.0008.120312T1200Z-120313T1200Z/ OKANOGAN HIGHLANDS- INCLUDING THE FOLLOWING LOCATIONS...REPUBLIC...INCHELIUM... WAUCONDA...CHESAW ROAD...HIGHWAY 20 WAUCONDA SUMMIT... BOULDER CREEK ROAD...SHERMAN PASS 924 PM PDT SUN MAR 11 2012 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 5 AM MONDAY TO 5 AM PDT TUESDAY... * SNOW ACCUMULATIONS: 4 TO 7 INCHES OF SNOW IN THE VALLEYS AND 8 TO 14 INCHES IN THE MOUNTAINS. * WINDS: SOUTH 10 TO 20 MPH WITH GUSTS UP TO 35 MPH. * TIMING: STEADY SNOW WILL BEGIN LATE TONIGHT LAST INTO MONDAY EVENING. * LOCATIONS: REPUBLIC...INCHELIUM...WAUCONDA...CHESAW ROAD... HIGHWAY 20 WAUCONDA SUMMIT...BOULDER CREEK ROAD...SHERMAN PASS. * SNOW LEVEL: VALLEY FLOORS MONDAY MORNING...RISING TO 3000 FEET IN THE AFTERNOON. * IMPACTS: HEAVY SNOW ACCUMULATION ON LOWER ELEVATION ROADWAYS WILL MAKE TRAVEL HAZARDOUS THROUGH MIDDAY MONDAY. SHERMAN PASS WILL CONTINUE TO BE HAZARDOUS THROUGH THE ENTIRE EVENT. EXPOSED MOUNTAIN TERRAIN AND RIDGES MAY SEE BLOWING AND DRIFTING SNOW. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ WAZ042-121230- /O.CON.KOTX.WS.W.0008.120312T1200Z-120313T0600Z/ EAST SLOPES NORTHERN CASCADES- INCLUDING THE FOLLOWING LOCATIONS...LEAVENWORTH...MAZAMA... TWISP...WINTHROP...STEHEKIN...CONCONULLY...BLEWETT PASS... LOUP LOUP PASS 924 PM PDT SUN MAR 11 2012 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 5 AM TO 11 PM PDT MONDAY... * SNOW ACCUMULATIONS: THE HEAVIEST SNOWS...6 TO 10 INCHES...WILL FALL ACROSS THE METHOW VALLEY...ESPECIALLY THE WESTERN PORTION FROM TWISP TO MAZAMA. LESSER AMOUNTS CAN BE EXPECTED SOUTH OF LAKE CHELAN...WHERE VALLEY TOWNS WILL SEE 4 TO 8 INCHES OF SNOW. * WINDS: SOUTH GUSTS UP TO 40 MPH ON EXPOSED MOUNTAIN RIDGES. * TIMING: STEADY SNOW WILL BEGIN EARLY MONDAY MORNING AND TAPER OFF TO SCATTERED SNOW SHOWERS BY MONDAY EVENING. * LOCATIONS: LEAVENWORTH...MAZAMA...TWISP...WINTHROP... STEHEKIN... CONCONULLY...BLEWETT PASS...LOUP LOUP PASS. * SNOW LEVEL: VALLEY FLOORS. SNOW LEVEL RISING TO 2000 FEET SOUTH OF LAKE CHELAN IN THE AFTERNOON. THIS INCLUDES LEAVENWORTH AND PLAIN. * IMPACTS: HEAVY SNOW ACCUMULATION ON ROADWAYS WILL MAKE TRAVEL HAZARDOUS. ON EXPOSED TERRAIN AND RIDGES BLOWING SNOW WILL CREATE DRIFTS AND LOW VISIBILITIES. 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. && $$ WAZ043-121230- /O.CON.KOTX.WW.Y.0013.120312T1200Z-120313T0600Z/ OKANOGAN VALLEY- INCLUDING THE FOLLOWING LOCATIONS...OMAK...OKANOGAN...BREWSTER... BRIDGEPORT...OROVILLE...NESPELEM...DISAUTEL PASS 924 PM PDT SUN MAR 11 2012 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 5 AM TO 11 PM PDT MONDAY... * SNOW ACCUMULATIONS: 2 TO 4 INCHES...ESPECIALLY ABOVE 2000 FEET. * WINDS: SOUTH 10 TO 15 MPH. * TIMING: STEADY SNOW WILL BEGIN EARLY MONDAY MORNING. SNOW LEVELS MAY RISE TO 2500 FEET AFTER NOON WITH RAIN OR A MIX OF PRECIPITATION IN THE OKANOGAN VALLEY FLOOR. PRECIPITATION WILL TAPER OFF TO SCATTERED SHOWERS LATE MONDAY AFTERNOON. * LOCATIONS: OMAK...OKANOGAN...BREWSTER...BRIDGEPORT... OROVILLE... NESPELEM...DISAUTEL PASS. * SNOW LEVEL: RISING TO 2500 FEET. * IMPACTS: HEAVY WET SNOW ACCUMULATION ON ROADWAYS WILL MAKE TRAVEL HAZARDOUS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$
364 WWUS46 KOTX 121050 WSWOTX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE SPOKANE WA 350 AM PDT MON MAR 12 2012 ...LATE WINTER STORM TO BRING SIGNIFICANT SNOW LATE TODAY THROUGH TONIGHT... WAZ038-121900- /O.CON.KOTX.WS.W.0008.120312T1200Z-120313T1200Z/ OKANOGAN HIGHLANDS- INCLUDING THE FOLLOWING LOCATIONS...REPUBLIC...INCHELIUM... WAUCONDA...CHESAW ROAD...HIGHWAY 20 WAUCONDA SUMMIT... BOULDER CREEK ROAD...SHERMAN PASS 350 AM PDT MON MAR 12 2012 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM PDT TUESDAY... * SNOW ACCUMULATIONS: 4 TO 7 INCHES OF SNOW IN THE VALLEYS AND 8 TO 14 INCHES IN THE MOUNTAINS. * WINDS: SOUTH 10 TO 20 MPH WITH GUSTS UP TO 35 MPH. * TIMING: STEADY SNOW WILL BEGIN THIS MORNING AND LAST THROUGH TONIGHT. BELOW 3000 FEET MOST OF THE SNOW ACCUMULATION WILL OCCUR TODAY...AND CHANGE TO RAIN OR A MIX OF RAIN AND SNOW TONIGHT. * LOCATIONS: REPUBLIC...INCHELIUM...WAUCONDA...CHESAW ROAD... HIGHWAY 20 WAUCONDA SUMMIT...BOULDER CREEK ROAD...SHERMAN PASS. * SNOW LEVEL: VALLEY FLOORS TODAY...RISING TO 3000 FEET THIS EVENING. * IMPACTS: HEAVY SNOW ACCUMULATION ON LOWER ELEVATION ROADWAYS WILL MAKE TRAVEL HAZARDOUS THROUGH MIDDAY MONDAY. SHERMAN PASS WILL CONTINUE TO BE HAZARDOUS THROUGH THE ENTIRE EVENT. EXPOSED MOUNTAIN TERRAIN AND RIDGES MAY SEE BLOWING AND DRIFTING SNOW. 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. && $$ WAZ042-121900- /O.CON.KOTX.WS.W.0008.120312T1200Z-120313T0600Z/ EAST SLOPES NORTHERN CASCADES- INCLUDING THE FOLLOWING LOCATIONS...LEAVENWORTH...MAZAMA... TWISP...WINTHROP...STEHEKIN...CONCONULLY...BLEWETT PASS... LOUP LOUP PASS 350 AM PDT MON MAR 12 2012 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 PM PDT THIS EVENING... * SNOW ACCUMULATIONS: THE HEAVIEST SNOWS...6 TO 10 INCHES...WILL FALL ACROSS THE METHOW VALLEY...ESPECIALLY THE WESTERN PORTION FROM TWISP TO MAZAMA. LESSER AMOUNTS CAN BE EXPECTED SOUTH OF LAKE CHELAN...WHERE VALLEY TOWNS WILL SEE 4 TO 8 INCHES OF SNOW. * WINDS: SOUTH 10 TO 20 MPH WITH GUSTS UP TO 35 MPH. * TIMING: STEADY SNOW WILL BEGIN THIS MORNING AND TAPER OFF TO SCATTERED SNOW SHOWERS LATE TONIGHT. * LOCATIONS: LEAVENWORTH...MAZAMA...TWISP...WINTHROP... STEHEKIN... CONCONULLY...BLEWETT PASS...LOUP LOUP PASS. * SNOW LEVEL: VALLEY FLOORS. * IMPACTS: HEAVY SNOW ACCUMULATION ON ROADWAYS WILL MAKE TRAVEL HAZARDOUS. ON EXPOSED TERRAIN AND RIDGES BLOWING SNOW WILL CREATE DRIFTS AND LOW VISIBILITIES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ WAZ037-121900- /O.CON.KOTX.WS.W.0008.120312T1800Z-120313T1200Z/ NORTHEAST MOUNTAINS- INCLUDING THE FOLLOWING LOCATIONS...SPRINGDALE-HUNTERS ROAD... ORIN-RICE ROAD...FLOWERY TRAIL ROAD 350 AM PDT MON MAR 12 2012 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 11 AM THIS MORNING TO 5 AM PDT TUESDAY ABOVE 3000 FEET... * SNOW ACCUMULATIONS: MOUNTAINS 6 TO 12 INCHES. IN THE VALLEYS ONE TO LOCALLY 4 INCHES WILL ACCUMULATE THIS MORNING BEFORE SNOW LEVELS RISE THIS AFTERNOON. HEAVIEST VALLEY ACCUMULATIONS ARE EXPECTED NEAR THE CANADIAN BORDER. * WINDS: SOUTHEAST 10 TO 15 MPH WITH GUSTS UP TO 30 MPH. * LOCATIONS: SPRINGDALE-HUNTERS ROAD...ORIN-RICE ROAD...FLOWERY TRAIL ROAD. * SNOW LEVEL: VALLEY FLOORS RISING TO 3000 FEET. * IMPACTS: HEAVY SNOW ACCUMULATIONS ON ROADWAYS MAY MAKE TRAVEL HAZARDOUS MONDAY AND MONDAY NIGHT MAINLY ABOVE 3000 FEET. EXPOSED MOUNTAIN TERRAIN AND RIDGES MAY SEE BLOWING AND DRIFTING SNOW. 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. && $$ WAZ041-044-121900- /O.EXB.KOTX.WW.Y.0013.120312T1200Z-120313T0000Z/ WENATCHEE AREA-WATERVILLE PLATEAU- INCLUDING THE FOLLOWING LOCATIONS...WENATCHEE...CHELAN...ENTIAT... CASHMERE...WATERVILLE...MANSFIELD...BADGER MOUNTAIN ROAD 350 AM PDT MON MAR 12 2012 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 5 PM PDT THIS AFTERNOON... THE NATIONAL WEATHER SERVICE IN SPOKANE HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT UNTIL 5 PM PDT THIS AFTERNOON. * SNOW ACCUMULATIONS: 2 TO 4 INCHES OF SNOW. LOCAL ACCUMULATIONS TO 6 INCHES ARE POSSIBLE ON HIGHER BENCHES AROUND WENATCHEE AND THE WATERVILLE PLATEAU. * WINDS: SOUTH 10 TO 20 MPH WITH GUSTS UP TO 30 MPH. * TIMING: STEADY SNOW WILL BEGIN THIS MORNING. SNOW LEVELS MAY RISE TO 2500 FEET AFTER NOON WITH RAIN OR A MIX OF PRECIPITATION IN THE COLUMBIA RIVER VALLEY. PRECIPITATION WILL TAPER OFF TO SCATTERED SHOWERS LATE THIS AFTERNOON. * LOCATIONS: WENATCHEE...CHELAN...ENTIAT...CASHMERE... WATERVILLE...MANSFIELD...BADGER MOUNTAIN ROAD. * SNOW LEVEL: RISING TO 2500 FEET. * IMPACTS: HEAVY WET SNOW ACCUMULATION ON ROADWAYS WILL MAKE TRAVEL HAZARDOUS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ WAZ043-121900- /O.CON.KOTX.WW.Y.0013.120312T1200Z-120313T0600Z/ OKANOGAN VALLEY- INCLUDING THE FOLLOWING LOCATIONS...OMAK...OKANOGAN...BREWSTER... BRIDGEPORT...OROVILLE...NESPELEM...DISAUTEL PASS 350 AM PDT MON MAR 12 2012 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM PDT THIS EVENING... * SNOW ACCUMULATIONS: 2 TO LOCALLY 6 INCHES OF SNOW. HEAVIEST ACCUMULATIONS EXPECTED NEAR THE CANADIAN BORDER AND ON HIGHER TERRAIN. * WINDS: SOUTH 10 TO 20 MPH WITH GUSTS UP TO 25 MPH. * TIMING: STEADY SNOW WILL BEGIN THIS MORNING. SNOW LEVELS MAY RISE TO 2500 FEET AFTER NOON WITH RAIN OR A MIX OF PRECIPITATION IN THE OKANOGAN VALLEY FLOOR. PRECIPITATION WILL TAPER OFF TO SCATTERED SHOWERS THIS EVENING. * LOCATIONS: OMAK...OKANOGAN...BREWSTER...BRIDGEPORT... OROVILLE...NESPELEM...DISAUTEL PASS. * SNOW LEVEL: RISING TO 2500 FEET. * IMPACTS: HEAVY WET SNOW ACCUMULATION ON ROADWAYS WILL MAKE TRAVEL HAZARDOUS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$
388 WWUS46 KOTX 121526 WSWOTX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE SPOKANE WA 826 AM PDT MON MAR 12 2012 ...LATE WINTER STORM TO BRING SIGNIFICANT SNOW LATE TODAY THROUGH TONIGHT... IDZ001-130100- /O.EXB.KOTX.WS.W.0008.120312T2100Z-120313T1800Z/ NORTHERN PANHANDLE- INCLUDING THE FOLLOWING LOCATIONS...EASTPORT... SCHWEITZER MOUNTAIN ROAD 826 AM PDT MON MAR 12 2012 ...WINTER STORM WARNING IN EFFECT FROM 2 PM THIS AFTERNOON TO 11 AM PDT TUESDAY ABOVE 3000 FEET... THE NATIONAL WEATHER SERVICE IN SPOKANE HAS ISSUED A WINTER STORM WARNING ABOVE 3000 FEET FOR HEAVY SNOW...WHICH IS IN EFFECT FROM 2 PM THIS AFTERNOON TO 11 AM PDT TUESDAY. * SNOW ACCUMULATIONS: 2 TO 5 INCHES OF SNOW IN THE VALLEYS AND IN THE MOUNTAINS 8 TO 14 INCHES. HEAVIEST VALLEY ACCUMULATIONS ARE EXPECTED NEAR THE CANADIAN BORDER. * WINDS: SOUTH 5 TO 15 MPH WITH GUSTS UP TO 30 MPH. * TIMING: STEADY SNOW WILL BEGIN LATE THIS MORNING AND LAST THROUGH TONIGHT. BELOW 3000 FEET MOST OF THE SNOW ACCUMULATION WILL OCCUR TODAY...AND CHANGE TO RAIN OR A MIX OF RAIN AND SNOW TONIGHT. * HAZARD ELEVATION: ABOVE 3000 FEET. * LOCATIONS: EASTPORT...SCHWEITZER MOUNTAIN ROAD. * IMPACTS: SNOW ACCUMULATION ON LOWER ELEVATION ROADWAYS WILL MAKE TRAVEL HAZARDOUS THROUGH THIS AFTERNOON. SHERMAN PASS WILL CONTINUE TO BE HAZARDOUS THROUGH THE ENTIRE EVENT. EXPOSED MOUNTAIN TERRAIN AND RIDGES MAY SEE BLOWING AND DRIFTING SNOW. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SIGNIFICANT AMOUNTS OF SNOW ARE EXPECTED OR OCCURRING. SNOW ACCUMULATIONS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ WAZ038-130100- /O.CON.KOTX.WS.W.0008.000000T0000Z-120313T1200Z/ OKANOGAN HIGHLANDS- INCLUDING THE FOLLOWING LOCATIONS...REPUBLIC...INCHELIUM... WAUCONDA...CHESAW ROAD...HIGHWAY 20 WAUCONDA SUMMIT... BOULDER CREEK ROAD...SHERMAN PASS 826 AM PDT MON MAR 12 2012 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM PDT TUESDAY... * SNOW ACCUMULATIONS: AN ADDITIONAL 3 TO 6 INCHES OF SNOW IN THE VALLEYS AND IN THE MOUNTAINS AN ADDITIONAL 7 TO 12 INCHES. * WINDS: SOUTH 10 TO 20 MPH WITH GUSTS UP TO 35 MPH. * TIMING: STEADY SNOW WILL CONTINUE THIS MORNING AND LAST THROUGH TONIGHT. BELOW 3000 FEET MOST OF THE SNOW ACCUMULATION WILL OCCUR TODAY...AND CHANGE TO RAIN OR A MIX OF RAIN AND SNOW TONIGHT. * LOCATIONS: REPUBLIC...INCHELIUM...WAUCONDA...CHESAW ROAD... HIGHWAY 20 WAUCONDA SUMMIT...BOULDER CREEK ROAD...SHERMAN PASS. * SNOW LEVEL: VALLEY FLOORS RISING TO 3000 FEET THIS EVENING. * IMPACTS: HEAVY SNOW ACCUMULATION ON LOWER ELEVATION ROADWAYS WILL MAKE TRAVEL HAZARDOUS THROUGH MIDDAY MONDAY. SHERMAN PASS WILL CONTINUE TO BE HAZARDOUS THROUGH THE ENTIRE EVENT. EXPOSED MOUNTAIN TERRAIN AND RIDGES MAY SEE BLOWING AND DRIFTING SNOW. 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. && $$ WAZ042-130100- /O.CON.KOTX.WS.W.0008.000000T0000Z-120313T0600Z/ EAST SLOPES NORTHERN CASCADES- INCLUDING THE FOLLOWING LOCATIONS...LEAVENWORTH...MAZAMA... TWISP...WINTHROP...STEHEKIN...CONCONULLY...BLEWETT PASS... LOUP LOUP PASS 826 AM PDT MON MAR 12 2012 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 PM PDT THIS EVENING... * SNOW ACCUMULATIONS: THE HEAVIEST SNOWS...6 TO 10 INCHES...WILL FALL ACROSS THE METHOW VALLEY...ESPECIALLY THE WESTERN PORTION FROM TWISP TO MAZAMA. LESSER AMOUNTS CAN BE EXPECTED SOUTH OF LAKE CHELAN...WHERE VALLEY TOWNS WILL SEE 4 TO 8 INCHES OF SNOW. * WINDS: SOUTH 10 TO 20 MPH WITH GUSTS UP TO 35 MPH. * TIMING: STEADY SNOW WILL CONTINUE THIS MORNING AND TAPER OFF TO SCATTERED SNOW SHOWERS LATE TONIGHT. * LOCATIONS: LEAVENWORTH...MAZAMA...TWISP...WINTHROP... STEHEKIN... CONCONULLY...BLEWETT PASS...LOUP LOUP PASS. * SNOW LEVEL: VALLEY FLOORS. * IMPACTS: HEAVY SNOW ACCUMULATION ON ROADWAYS WILL MAKE TRAVEL HAZARDOUS. ON EXPOSED TERRAIN AND RIDGES BLOWING SNOW WILL CREATE DRIFTS AND LOW VISIBILITIES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ WAZ037-130100- /O.CON.KOTX.WS.W.0008.120312T1800Z-120313T1200Z/ NORTHEAST MOUNTAINS- INCLUDING THE FOLLOWING LOCATIONS...SPRINGDALE-HUNTERS ROAD... ORIN-RICE ROAD...FLOWERY TRAIL ROAD 826 AM PDT MON MAR 12 2012 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM PDT TUESDAY... * SNOW ACCUMULATIONS: MOUNTAINS 6 TO 12 INCHES. IN THE VALLEYS ONE TO LOCALLY 4 INCHES WILL ACCUMULATE THIS MORNING BEFORE SNOW LEVELS RISE THIS AFTERNOON. HEAVIEST VALLEY ACCUMULATIONS ARE EXPECTED NEAR THE CANADIAN BORDER. * WINDS: SOUTHEAST 10 TO 15 MPH WITH GUSTS UP TO 30 MPH. * LOCATIONS: SPRINGDALE-HUNTERS ROAD...ORIN-RICE ROAD...FLOWERY TRAIL ROAD. * SNOW LEVEL: VALLEY FLOORS RISING TO 3500 FEET. * IMPACTS: HEAVY SNOW ACCUMULATIONS ON ROADWAYS MAY MAKE TRAVEL HAZARDOUS MONDAY AND MONDAY NIGHT MAINLY ABOVE 3000 FEET. EXPOSED MOUNTAIN TERRAIN AND RIDGES MAY SEE BLOWING AND DRIFTING SNOW. 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. && $$ WAZ043-130100- /O.CON.KOTX.WW.Y.0013.000000T0000Z-120313T0600Z/ OKANOGAN VALLEY- INCLUDING THE FOLLOWING LOCATIONS...OMAK...OKANOGAN...BREWSTER... BRIDGEPORT...OROVILLE...NESPELEM...DISAUTEL PASS 826 AM PDT MON MAR 12 2012 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM PDT THIS EVENING... * SNOW ACCUMULATIONS: 2 TO LOCALLY 6 INCHES OF SNOW. HEAVIEST ACCUMULATIONS EXPECTED NEAR THE CANADIAN BORDER AND ON HIGHER TERRAIN. * WINDS: SOUTH 10 TO 20 MPH WITH GUSTS UP TO 25 MPH. * TIMING: STEADY SNOW WILL CONTINUE THIS MORNING. SNOW LEVELS MAY RISE TO 2500 FEET AFTER NOON WITH RAIN OR A MIX OF PRECIPITATION IN THE OKANOGAN VALLEY FLOOR. PRECIPITATION WILL TAPER OFF TO SCATTERED SHOWERS THIS EVENING. * LOCATIONS: OMAK...OKANOGAN...BREWSTER...BRIDGEPORT... OROVILLE... NESPELEM...DISAUTEL PASS. * SNOW LEVEL: RISING TO 2500 FEET. * IMPACTS: HEAVY WET SNOW ACCUMULATION ON ROADWAYS WILL MAKE TRAVEL HAZARDOUS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ WAZ041-044-130000- /O.CON.KOTX.WW.Y.0013.000000T0000Z-120313T0000Z/ WENATCHEE AREA-WATERVILLE PLATEAU- INCLUDING THE FOLLOWING LOCATIONS...WENATCHEE...CHELAN...ENTIAT... CASHMERE...WATERVILLE...MANSFIELD...BADGER MOUNTAIN ROAD 826 AM PDT MON MAR 12 2012 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM PDT THIS AFTERNOON... * SNOW ACCUMULATIONS: 2 TO 4 INCHES OF SNOW. LOCAL ACCUMULATIONS TO 6 INCHES ARE POSSIBLE ON HIGHER BENCHES AROUND WENATCHEE AND THE WATERVILLE PLATEAU. * WINDS: SOUTH 10 TO 20 MPH WITH GUSTS UP TO 30 MPH. * TIMING: STEADY SNOW WILL CONTINUE THIS MORNING. SNOW LEVELS MAY RISE TO 2500 FEET AFTER NOON WITH RAIN OR A MIX OF PRECIPITATION IN THE COLUMBIA RIVER VALLEY. PRECIPITATION WILL TAPER OFF TO SCATTERED SHOWERS LATE THIS AFTERNOON. * LOCATIONS: WENATCHEE...CHELAN...ENTIAT...CASHMERE... WATERVILLE...MANSFIELD...BADGER MOUNTAIN ROAD. * SNOW LEVEL: RISING TO 2500 FEET. * IMPACTS: HEAVY WET SNOW ACCUMULATION ON ROADWAYS WILL MAKE TRAVEL HAZARDOUS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$
930 WWUS46 KOTX 121543 CCA WSWOTX URGENT - WINTER WEATHER MESSAGE...CORRECTED NATIONAL WEATHER SERVICE SPOKANE WA 838 AM PDT MON MAR 12 2012 ...LATE WINTER STORM TO BRING SIGNIFICANT SNOW LATE TODAY THROUGH TONIGHT... IDZ001-130130- /O.COR.KOTX.WS.W.0008.120312T2100Z-120313T1800Z/ NORTHERN PANHANDLE- INCLUDING THE FOLLOWING LOCATIONS...EASTPORT... SCHWEITZER MOUNTAIN ROAD 838 AM PDT MON MAR 12 2012 ...WINTER STORM WARNING IN EFFECT FROM 2 PM THIS AFTERNOON TO 11 AM PDT TUESDAY ABOVE 3000 FEET... THE NATIONAL WEATHER SERVICE IN SPOKANE HAS ISSUED A WINTER STORM WARNING ABOVE 3000 FEET FOR HEAVY SNOW...WHICH IS IN EFFECT FROM 2 PM THIS AFTERNOON TO 11 AM PDT TUESDAY. * SNOW ACCUMULATIONS: 2 TO 5 INCHES OF SNOW IN THE VALLEYS AND IN THE MOUNTAINS 8 TO 14 INCHES. HEAVIEST VALLEY ACCUMULATIONS ARE EXPECTED NEAR THE CANADIAN BORDER. * WINDS: SOUTH 5 TO 15 MPH WITH GUSTS UP TO 30 MPH. * TIMING: STEADY SNOW WILL THIS AFTERNOON AND LAST EARLY TUESDAY. BELOW 3000 FEET MOST OF THE SNOW ACCUMULATION WILL OCCUR TODAY...AND CHANGE TO RAIN OR A MIX OF RAIN AND SNOW TONIGHT. * HAZARD ELEVATION: ABOVE 3000 FEET. * LOCATIONS: EASTPORT...SCHWEITZER MOUNTAIN ROAD. * IMPACTS: SNOW ACCUMULATION ON LOWER ELEVATION ROADWAYS WILL MAKE TRAVEL HAZARDOUS THROUGH THIS AFTERNOON. EXPOSED MOUNTAIN TERRAIN AND RIDGES MAY SEE BLOWING AND DRIFTING SNOW. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SIGNIFICANT AMOUNTS OF SNOW ARE EXPECTED OR OCCURRING. SNOW ACCUMULATIONS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ WAZ038-130130- /O.CON.KOTX.WS.W.0008.000000T0000Z-120313T1200Z/ OKANOGAN HIGHLANDS- INCLUDING THE FOLLOWING LOCATIONS...REPUBLIC...INCHELIUM... WAUCONDA...CHESAW ROAD...HIGHWAY 20 WAUCONDA SUMMIT... BOULDER CREEK ROAD...SHERMAN PASS 838 AM PDT MON MAR 12 2012 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM PDT TUESDAY... * SNOW ACCUMULATIONS: AN ADDITIONAL 3 TO 6 INCHES OF SNOW IN THE VALLEYS AND IN THE MOUNTAINS AN ADDITIONAL 7 TO 12 INCHES. * WINDS: SOUTH 10 TO 20 MPH WITH GUSTS UP TO 35 MPH. * TIMING: STEADY SNOW WILL CONTINUE THIS MORNING AND LAST THROUGH TONIGHT. BELOW 3000 FEET MOST OF THE SNOW ACCUMULATION WILL OCCUR TODAY...AND CHANGE TO RAIN OR A MIX OF RAIN AND SNOW TONIGHT. * LOCATIONS: REPUBLIC...INCHELIUM...WAUCONDA...CHESAW ROAD... HIGHWAY 20 WAUCONDA SUMMIT...BOULDER CREEK ROAD...SHERMAN PASS. * SNOW LEVEL: VALLEY FLOORS RISING TO 3000 FEET THIS EVENING. * IMPACTS: HEAVY SNOW ACCUMULATION ON LOWER ELEVATION ROADWAYS WILL MAKE TRAVEL HAZARDOUS THROUGH MIDDAY MONDAY. SHERMAN PASS WILL CONTINUE TO BE HAZARDOUS THROUGH THE ENTIRE EVENT. EXPOSED MOUNTAIN TERRAIN AND RIDGES MAY SEE BLOWING AND DRIFTING SNOW. 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. && $$ WAZ042-130130- /O.CON.KOTX.WS.W.0008.000000T0000Z-120313T0600Z/ EAST SLOPES NORTHERN CASCADES- INCLUDING THE FOLLOWING LOCATIONS...LEAVENWORTH...MAZAMA... TWISP...WINTHROP...STEHEKIN...CONCONULLY...BLEWETT PASS... LOUP LOUP PASS 838 AM PDT MON MAR 12 2012 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 PM PDT THIS EVENING... * SNOW ACCUMULATIONS: THE HEAVIEST SNOWS...6 TO 10 INCHES...WILL FALL ACROSS THE METHOW VALLEY...ESPECIALLY THE WESTERN PORTION FROM TWISP TO MAZAMA. LESSER AMOUNTS CAN BE EXPECTED SOUTH OF LAKE CHELAN...WHERE VALLEY TOWNS WILL SEE 4 TO 8 INCHES OF SNOW. * WINDS: SOUTH 10 TO 20 MPH WITH GUSTS UP TO 35 MPH. * TIMING: STEADY SNOW WILL CONTINUE THIS MORNING AND TAPER OFF TO SCATTERED SNOW SHOWERS LATE TONIGHT. * LOCATIONS: LEAVENWORTH...MAZAMA...TWISP...WINTHROP... STEHEKIN... CONCONULLY...BLEWETT PASS...LOUP LOUP PASS. * SNOW LEVEL: VALLEY FLOORS. * IMPACTS: HEAVY SNOW ACCUMULATION ON ROADWAYS WILL MAKE TRAVEL HAZARDOUS. ON EXPOSED TERRAIN AND RIDGES BLOWING SNOW WILL CREATE DRIFTS AND LOW VISIBILITIES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ WAZ037-130130- /O.COR.KOTX.WS.W.0008.120312T1800Z-120313T1200Z/ NORTHEAST MOUNTAINS- INCLUDING THE FOLLOWING LOCATIONS...SPRINGDALE-HUNTERS ROAD... ORIN-RICE ROAD...FLOWERY TRAIL ROAD 838 AM PDT MON MAR 12 2012 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM PDT TUESDAY... * SNOW ACCUMULATIONS: MOUNTAINS 6 TO 12 INCHES. IN THE VALLEYS ONE TO LOCALLY 4 INCHES WILL ACCUMULATE THIS MORNING BEFORE SNOW LEVELS RISE THIS AFTERNOON. HEAVIEST VALLEY ACCUMULATIONS ARE EXPECTED NEAR THE CANADIAN BORDER. * WINDS: SOUTHEAST 10 TO 15 MPH WITH GUSTS UP TO 30 MPH. * TIMING: STEADY SNOW WILL DEVELOP AROUND MIDDAY AND CONTINUE THROUGH EARLY TUESDAY MORNING. SNOW SHOWERS ARE THEN EXPECTED FOR MUCH OF TUESDAY. * LOCATIONS: SPRINGDALE-HUNTERS ROAD...ORIN-RICE ROAD...FLOWERY TRAIL ROAD. * SNOW LEVEL: VALLEY FLOORS RISING TO 3500 FEET. * IMPACTS: HEAVY SNOW ACCUMULATIONS ON ROADWAYS MAY MAKE TRAVEL HAZARDOUS MONDAY AND MONDAY NIGHT MAINLY ABOVE 3000 FEET. EXPOSED MOUNTAIN TERRAIN AND RIDGES MAY SEE BLOWING AND DRIFTING SNOW. 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. && $$ WAZ043-130130- /O.COR.KOTX.WW.Y.0013.000000T0000Z-120313T0600Z/ OKANOGAN VALLEY- INCLUDING THE FOLLOWING LOCATIONS...OMAK...OKANOGAN...BREWSTER... BRIDGEPORT...OROVILLE...NESPELEM...DISAUTEL PASS 838 AM PDT MON MAR 12 2012 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM PDT THIS EVENING... * SNOW ACCUMULATIONS: 2 TO LOCALLY 6 INCHES OF SNOW. HEAVIEST ACCUMULATIONS EXPECTED NEAR THE CANADIAN BORDER AND ON HIGHER TERRAIN. * WINDS: SOUTH 10 TO 20 MPH WITH GUSTS UP TO 25 MPH. * TIMING: STEADY SNOW WILL CONTINUE THIS MORNING. SNOW LEVELS MAY RISE TO 2500 FEET AFTER NOON WITH RAIN OR A MIX OF PRECIPITATION IN THE OKANOGAN VALLEY FLOOR. PRECIPITATION WILL TAPER OFF TO SCATTERED SHOWERS THIS EVENING. * LOCATIONS: OMAK...OKANOGAN...BREWSTER...BRIDGEPORT... OROVILLE... NESPELEM...DISAUTEL PASS. * SNOW LEVEL: ALL ELEVATIONS THIS MORNING RISING TO 2500 FEET DURING THE AFTERNOON. * IMPACTS: HEAVY WET SNOW ACCUMULATION ON ROADWAYS WILL MAKE TRAVEL HAZARDOUS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ WAZ041-044-130000- /O.CON.KOTX.WW.Y.0013.000000T0000Z-120313T0000Z/ WENATCHEE AREA-WATERVILLE PLATEAU- INCLUDING THE FOLLOWING LOCATIONS...WENATCHEE...CHELAN...ENTIAT... CASHMERE...WATERVILLE...MANSFIELD...BADGER MOUNTAIN ROAD 838 AM PDT MON MAR 12 2012 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM PDT THIS AFTERNOON... * SNOW ACCUMULATIONS: 2 TO 4 INCHES OF SNOW. LOCAL ACCUMULATIONS TO 6 INCHES ARE POSSIBLE ON HIGHER BENCHES AROUND WENATCHEE AND THE WATERVILLE PLATEAU. * WINDS: SOUTH 10 TO 20 MPH WITH GUSTS UP TO 30 MPH. * TIMING: STEADY SNOW WILL CONTINUE THIS MORNING. SNOW LEVELS MAY RISE TO 2500 FEET AFTER NOON WITH RAIN OR A MIX OF PRECIPITATION IN THE COLUMBIA RIVER VALLEY. PRECIPITATION WILL TAPER OFF TO SCATTERED SHOWERS LATE THIS AFTERNOON. * LOCATIONS: WENATCHEE...CHELAN...ENTIAT...CASHMERE... WATERVILLE...MANSFIELD...BADGER MOUNTAIN ROAD. * SNOW LEVEL: RISING TO 2500 FEET. * IMPACTS: HEAVY WET SNOW ACCUMULATION ON ROADWAYS WILL MAKE TRAVEL HAZARDOUS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$
047 WWUS46 KOTX 122107 WSWOTX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE SPOKANE WA 207 PM PDT MON MAR 12 2012 ...LATE WINTER STORM TO BRING SIGNIFICANT SNOW LATE TODAY THROUGH TONIGHT... WAZ041-044-122215- /O.CAN.KOTX.WW.Y.0013.000000T0000Z-120313T0000Z/ WENATCHEE AREA-WATERVILLE PLATEAU- INCLUDING THE FOLLOWING LOCATIONS...WENATCHEE...CHELAN...ENTIAT... CASHMERE...WATERVILLE...MANSFIELD...BADGER MOUNTAIN ROAD 207 PM PDT MON MAR 12 2012 ...WINTER WEATHER ADVISORY IS CANCELLED... THE NATIONAL WEATHER SERVICE IN SPOKANE HAS CANCELLED THE WINTER WEATHER ADVISORY FOR THE WENATCHEE VALLEY AND WATERVILLE PLATEAU. SNOW IS CHANGING TO RAIN ACROSS THE AREA. LITTLE ADDITIONAL SNOWFALL ACCUMULATION IS EXPECTED. $$ WAZ037-038-130600- /O.CON.KOTX.WS.W.0008.000000T0000Z-120313T1200Z/ NORTHEAST MOUNTAINS-OKANOGAN HIGHLANDS- INCLUDING THE FOLLOWING LOCATIONS...SPRINGDALE-HUNTERS ROAD... ORIN-RICE ROAD...FLOWERY TRAIL ROAD...REPUBLIC...INCHELIUM... WAUCONDA...CHESAW ROAD...HIGHWAY 20 WAUCONDA SUMMIT... BOULDER CREEK ROAD...SHERMAN PASS 207 PM PDT MON MAR 12 2012 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM PDT TUESDAY... * SNOW ACCUMULATIONS: AN ADDITIONAL 6 TO 12 INCHES. * WINDS: SOUTHEAST 10 TO 20 MPH WITH GUSTS UP TO 35 MPH. * TIMING: STEADY SNOW WILL CONTINUE THIS AFTERNOON AND LAST THROUGH TONIGHT. BELOW 3000 FEET MOST OF THE SNOW ACCUMULATION WILL OCCUR TODAY...AND CHANGE TO RAIN OR A MIX OF RAIN AND SNOW TONIGHT. * LOCATIONS: REPUBLIC...INCHELIUM...WAUCONDA...CHESAW ROAD... HIGHWAY 20 WAUCONDA SUMMIT...BOULDER CREEK ROAD...SHERMAN PASS... SPRINGDALE-HUNTERS ROAD...ORIN-RICE ROAD...FLOWERY TRAIL ROAD. * SNOW LEVEL: VALLEY FLOORS RISING TO 3500 FEET. * IMPACTS: HEAVY SNOW ACCUMULATION ON LOWER ELEVATION ROADWAYS WILL MAKE TRAVEL HAZARDOUS THROUGH THIS AFTERNOON. SHERMAN PASS WILL CONTINUE TO BE HAZARDOUS THROUGH THE ENTIRE EVENT. EXPOSED MOUNTAIN TERRAIN AND RIDGES MAY SEE BLOWING AND DRIFTING SNOW. 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. && $$ WAZ042-130600- /O.CON.KOTX.WS.W.0008.000000T0000Z-120313T0600Z/ EAST SLOPES NORTHERN CASCADES- INCLUDING THE FOLLOWING LOCATIONS...LEAVENWORTH...MAZAMA... TWISP...WINTHROP...STEHEKIN...CONCONULLY...BLEWETT PASS... LOUP LOUP PASS 207 PM PDT MON MAR 12 2012 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 PM PDT THIS EVENING... * SNOW ACCUMULATIONS: AN ADDITIONAL 1 TO 4 INCHES OF SNOW IN THE VALLEYS AND IN THE MOUNTAINS AN ADDITIONAL 5 TO 8 INCHES. * WINDS: SOUTH 10 TO 20 MPH WITH GUSTS UP TO 45 MPH. * TIMING: STEADY SNOW WILL CONTINUE THIS AFTERNOON AND TAPER OFF TO SCATTERED SNOW SHOWERS LATE TONIGHT. * LOCATIONS: LEAVENWORTH...MAZAMA...TWISP...WINTHROP... STEHEKIN... CONCONULLY...BLEWETT PASS...LOUP LOUP PASS. * IMPACTS: HEAVY SNOW ACCUMULATION ON ROADWAYS WILL MAKE TRAVEL HAZARDOUS. ON EXPOSED TERRAIN AND RIDGES BLOWING SNOW WILL CREATE DRIFTS AND LOW VISIBILITIES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ IDZ001-130600- /O.CON.KOTX.WS.W.0008.000000T0000Z-120313T1800Z/ NORTHERN PANHANDLE- INCLUDING THE FOLLOWING LOCATIONS...EASTPORT... SCHWEITZER MOUNTAIN ROAD 207 PM PDT MON MAR 12 2012 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 AM PDT TUESDAY ABOVE 3000 FEET... * SNOW ACCUMULATIONS: AN ADDITIONAL 6 TO 12 INCHES. * WINDS: SOUTH 10 TO 20 MPH WITH GUSTS UP TO 35 MPH. * TIMING: STEADY SNOW WILL THIS AFTERNOON AND LAST THROUGH EARLY TUESDAY. BELOW 3000 FEET MOST OF THE SNOW ACCUMULATION WILL OCCUR TODAY...AND CHANGE TO RAIN OR A MIX OF RAIN AND SNOW TONIGHT. * HAZARD ELEVATION: ABOVE 3000 FEET. * LOCATIONS: EASTPORT...SCHWEITZER MOUNTAIN ROAD. * IMPACTS: SNOW ACCUMULATION ON LOWER ELEVATION ROADWAYS WILL MAKE TRAVEL HAZARDOUS THROUGH THIS AFTERNOON. EXPOSED MOUNTAIN TERRAIN AND RIDGES MAY SEE BLOWING AND DRIFTING SNOW. 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. && $$ WAZ043-130600- /O.CON.KOTX.WW.Y.0013.000000T0000Z-120313T0600Z/ OKANOGAN VALLEY- INCLUDING THE FOLLOWING LOCATIONS...OMAK...OKANOGAN...BREWSTER... BRIDGEPORT...OROVILLE...NESPELEM...DISAUTEL PASS 207 PM PDT MON MAR 12 2012 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM PDT THIS EVENING... * SNOW ACCUMULATIONS: AN ADDITIONAL 1 TO 3 INCHES. * WINDS: SOUTH 15 TO 25 MPH WITH GUSTS UP TO 35 MPH. * TIMING: STEADY SNOW WILL CONTINUE THIS AFTERNOON. SNOW LEVELS MAY RISE TO 2500 FEET AFTER NOON WITH RAIN OR A MIX OF PRECIPITATION IN THE OKANOGAN VALLEY FLOOR. PRECIPITATION WILL TAPER OFF TO SCATTERED SHOWERS THIS EVENING. * LOCATIONS: OMAK...OKANOGAN...BREWSTER...BRIDGEPORT... OROVILLE... NESPELEM...DISAUTEL PASS. * SNOW LEVEL: 2500 FEET. * IMPACTS: HEAVY WET SNOW ACCUMULATION ON ROADWAYS WILL MAKE TRAVEL HAZARDOUS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$
417 WWUS46 KOTX 130037 WSWOTX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE SPOKANE WA 537 PM PDT MON MAR 12 2012 WAZ037-038-130845- /O.CON.KOTX.WS.W.0008.000000T0000Z-120313T1200Z/ NORTHEAST MOUNTAINS-OKANOGAN HIGHLANDS- INCLUDING THE FOLLOWING LOCATIONS...SPRINGDALE-HUNTERS ROAD... ORIN-RICE ROAD...FLOWERY TRAIL ROAD...REPUBLIC...INCHELIUM... WAUCONDA...CHESAW ROAD...HIGHWAY 20 WAUCONDA SUMMIT... BOULDER CREEK ROAD...SHERMAN PASS 537 PM PDT MON MAR 12 2012 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM PDT TUESDAY... * SNOW ACCUMULATIONS: AN ADDITIONAL 6 TO 12 INCHES ABOVE 3000 FEET. LESS THAN TWO INCHES BELOW 3000 FEET. * WINDS: SOUTHEAST 10 TO 20 MPH WITH GUSTS UP TO 35 MPH. * TIMING: STEADY SNOW WILL CONTINUE THIS AFTERNOON AND LAST THROUGH TONIGHT. BELOW 3000 FEET MOST OF THE SNOW ACCUMULATION WILL OCCUR TODAY...AND CHANGE TO RAIN OR A MIX OF RAIN AND SNOW TONIGHT. * LOCATIONS: REPUBLIC...INCHELIUM...WAUCONDA...CHESAW ROAD... HIGHWAY 20 WAUCONDA SUMMIT...BOULDER CREEK ROAD...SHERMAN PASS... SPRINGDALE-HUNTERS ROAD...ORIN-RICE ROAD...FLOWERY TRAIL ROAD. * SNOW LEVEL: VALLEY FLOORS RISING TO 3500 FEET. * IMPACTS: HEAVY SNOW ACCUMULATION ON LOWER ELEVATION ROADWAYS WILL MAKE TRAVEL HAZARDOUS THROUGH THIS AFTERNOON. SHERMAN PASS WILL CONTINUE TO BE HAZARDOUS THROUGH THE ENTIRE EVENT. EXPOSED MOUNTAIN TERRAIN AND RIDGES MAY SEE BLOWING AND DRIFTING SNOW. 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. && $$ WAZ042-130600- /O.CON.KOTX.WS.W.0008.000000T0000Z-120313T0600Z/ EAST SLOPES NORTHERN CASCADES- INCLUDING THE FOLLOWING LOCATIONS...LEAVENWORTH...MAZAMA... TWISP...WINTHROP...STEHEKIN...CONCONULLY...BLEWETT PASS... LOUP LOUP PASS 537 PM PDT MON MAR 12 2012 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 PM PDT THIS EVENING... * SNOW ACCUMULATIONS: AN ADDITIONAL 1 TO 4 INCHES OF SNOW IN THE VALLEYS AND IN THE MOUNTAINS AN ADDITIONAL 5 TO 8 INCHES. * WINDS: SOUTH 10 TO 20 MPH WITH GUSTS UP TO 45 MPH. * TIMING: STEADY SNOW WILL CONTINUE THIS AFTERNOON AND TAPER OFF TO SCATTERED SNOW SHOWERS LATE TONIGHT. * LOCATIONS: LEAVENWORTH...MAZAMA...TWISP...WINTHROP... STEHEKIN... CONCONULLY...BLEWETT PASS...LOUP LOUP PASS. * IMPACTS: HEAVY SNOW ACCUMULATION ON ROADWAYS WILL MAKE TRAVEL HAZARDOUS. ON EXPOSED TERRAIN AND RIDGES BLOWING SNOW WILL CREATE DRIFTS AND LOW VISIBILITIES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ IDZ001-130845- /O.CON.KOTX.WS.W.0008.000000T0000Z-120313T1800Z/ NORTHERN PANHANDLE- INCLUDING THE FOLLOWING LOCATIONS...EASTPORT... SCHWEITZER MOUNTAIN ROAD 537 PM PDT MON MAR 12 2012 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 AM PDT TUESDAY ABOVE 3000 FEET... * SNOW ACCUMULATIONS: AN ADDITIONAL 6 TO 12 INCHES. * WINDS: SOUTH 10 TO 20 MPH WITH GUSTS UP TO 35 MPH. * TIMING: STEADY SNOW WILL THIS AFTERNOON AND LAST THROUGH EARLY TUESDAY. BELOW 3000 FEET MOST OF THE SNOW ACCUMULATION WILL OCCUR TODAY...AND CHANGE TO RAIN OR A MIX OF RAIN AND SNOW TONIGHT. * HAZARD ELEVATION: ABOVE 3000 FEET. * LOCATIONS: EASTPORT...SCHWEITZER MOUNTAIN ROAD. * IMPACTS: SNOW ACCUMULATION ON LOWER ELEVATION ROADWAYS WILL MAKE TRAVEL HAZARDOUS THROUGH THIS AFTERNOON. EXPOSED MOUNTAIN TERRAIN AND RIDGES MAY SEE BLOWING AND DRIFTING SNOW. 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. && $$ WAZ043-130600- /O.CON.KOTX.WW.Y.0013.000000T0000Z-120313T0600Z/ OKANOGAN VALLEY- INCLUDING THE FOLLOWING LOCATIONS...OMAK...OKANOGAN...BREWSTER... BRIDGEPORT...OROVILLE...NESPELEM...DISAUTEL PASS 537 PM PDT MON MAR 12 2012 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM PDT THIS EVENING... * SNOW ACCUMULATIONS: AN ADDITIONAL 1 TO 3 INCHES. * WINDS: SOUTH 15 TO 25 MPH WITH GUSTS UP TO 35 MPH. * TIMING: STEADY SNOW WILL CONTINUE THIS AFTERNOON. SNOW LEVELS MAY RISE TO 2500 FEET AFTER NOON WITH RAIN OR A MIX OF PRECIPITATION IN THE OKANOGAN VALLEY FLOOR. PRECIPITATION WILL TAPER OFF TO SCATTERED SHOWERS THIS EVENING. * LOCATIONS: OMAK...OKANOGAN...BREWSTER...BRIDGEPORT... OROVILLE... NESPELEM...DISAUTEL PASS. * SNOW LEVEL: 2500 FEET. * IMPACTS: HEAVY WET SNOW ACCUMULATION ON ROADWAYS WILL MAKE TRAVEL HAZARDOUS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$
959 WWUS46 KOTX 130358 WSWOTX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE SPOKANE WA 858 PM PDT MON MAR 12 2012 WAZ042-131200- /O.EXT.KOTX.WS.W.0008.000000T0000Z-120313T1200Z/ EAST SLOPES NORTHERN CASCADES- INCLUDING THE FOLLOWING LOCATIONS...LEAVENWORTH...MAZAMA... TWISP...WINTHROP...STEHEKIN...CONCONULLY...BLEWETT PASS... LOUP LOUP PASS 858 PM PDT MON MAR 12 2012 ...WINTER STORM WARNING NOW IN EFFECT UNTIL 5 AM PDT TUESDAY... * SNOW ACCUMULATIONS: AN ADDITIONAL 1 TO 4 INCHES OF SNOW IN THE VALLEYS AND IN THE MOUNTAINS AN ADDITIONAL 5 TO 8 INCHES. * WINDS: SOUTH 10 TO 20 MPH WITH GUSTS UP TO 45 MPH. * TIMING: STEADY SNOW WILL TAPER OFF TO SCATTERED SNOW SHOWERS OVERNIGHT. * LOCATIONS: LEAVENWORTH...MAZAMA...TWISP...WINTHROP... STEHEKIN... CONCONULLY...BLEWETT PASS...LOUP LOUP PASS. * IMPACTS: HEAVY SNOW ACCUMULATION ON ROADWAYS WILL MAKE TRAVEL HAZARDOUS. ON EXPOSED TERRAIN AND RIDGES BLOWING SNOW WILL CREATE DRIFTS AND LOW VISIBILITIES. 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. && $$ WAZ037-038-131200- /O.CON.KOTX.WS.W.0008.000000T0000Z-120313T1200Z/ NORTHEAST MOUNTAINS-OKANOGAN HIGHLANDS- INCLUDING THE FOLLOWING LOCATIONS...SPRINGDALE-HUNTERS ROAD... ORIN-RICE ROAD...FLOWERY TRAIL ROAD...REPUBLIC...INCHELIUM... WAUCONDA...CHESAW ROAD...HIGHWAY 20 WAUCONDA SUMMIT... BOULDER CREEK ROAD...SHERMAN PASS 858 PM PDT MON MAR 12 2012 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM PDT TUESDAY... * SNOW ACCUMULATIONS: AN ADDITIONAL 6 TO 12 INCHES ABOVE 3000 FEET. LESS THAN TWO INCHES BELOW 3000 FEET. * WINDS: SOUTHEAST 10 TO 20 MPH WITH GUSTS UP TO 35 MPH. * TIMING: STEADY SNOW TONIGHT. BELOW 3000 FEET A MIXTURE OF RAIN AND SNOW. * LOCATIONS: REPUBLIC...INCHELIUM...WAUCONDA...CHESAW ROAD... HIGHWAY 20 WAUCONDA SUMMIT...BOULDER CREEK ROAD...SHERMAN PASS... SPRINGDALE-HUNTERS ROAD...ORIN-RICE ROAD...FLOWERY TRAIL ROAD. * SNOW LEVEL: SOME ACCUMULATION ABOVE 2000 FEET BUT THE HEAVIEST ACCUMULATIONS ARE ABOVE 3000 FEET. * IMPACTS: SNOW ACCUMULATION ON LOWER ELEVATION ROADWAYS WILL MAKE TRAVEL HAZARDOUS AT TIMES. SHERMAN PASS WILL CONTINUE TO BE HAZARDOUS THROUGH THE ENTIRE EVENT. EXPOSED MOUNTAIN TERRAIN AND RIDGES MAY SEE BLOWING AND DRIFTING SNOW. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ IDZ001-131200- /O.CON.KOTX.WS.W.0008.000000T0000Z-120313T1800Z/ NORTHERN PANHANDLE- INCLUDING THE FOLLOWING LOCATIONS...EASTPORT... SCHWEITZER MOUNTAIN ROAD 858 PM PDT MON MAR 12 2012 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 AM PDT TUESDAY ABOVE 3000 FEET... * SNOW ACCUMULATIONS: AN ADDITIONAL 6 TO 12 INCHES. * WINDS: SOUTH 10 TO 20 MPH WITH GUSTS UP TO 35 MPH. * TIMING: STEADY SNOW THROUGH EARLY TUESDAY. BELOW 3000 FEET IS MOSTLY A MIX OF RAIN AND SNOW. * HAZARD ELEVATION: ABOVE 3000 FEET...WITH LIGHTER SNOW ACCUMULATION BETWEEN 2000 AND 3000 FEET. * LOCATIONS: EASTPORT...SCHWEITZER MOUNTAIN ROAD. * IMPACTS: SNOW ACCUMULATION ON LOWER ELEVATION ROADWAYS WILL MAKE TRAVEL HAZARDOUS THROUGH THIS AFTERNOON. EXPOSED MOUNTAIN TERRAIN AND RIDGES MAY SEE BLOWING AND DRIFTING SNOW. 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. && $$ WAZ043-130900- /O.EXT.KOTX.WW.Y.0013.000000T0000Z-120313T0900Z/ OKANOGAN VALLEY- INCLUDING THE FOLLOWING LOCATIONS...OMAK...OKANOGAN...BREWSTER... BRIDGEPORT...OROVILLE...NESPELEM...DISAUTEL PASS 858 PM PDT MON MAR 12 2012 ...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 2 AM PDT TUESDAY... * SNOW ACCUMULATIONS: AN ADDITIONAL 1 TO 3 INCHES. * WINDS: SOUTH 15 TO 25 MPH WITH GUSTS UP TO 35 MPH. * TIMING: A MIX OF PRECIPITATION IN THE OKANOGAN VALLEY FLOOR. PRECIPITATION WILL TAPER OFF TO SCATTERED SHOWERS LATE TONIGHT. * LOCATIONS: OMAK...OKANOGAN...BREWSTER...BRIDGEPORT... OROVILLE... NESPELEM...DISAUTEL PASS. * SNOW LEVEL: NON ACCUMULATING RAIN OR SNOW BELOW 2000 FEET WITH LIGHT ACCUMULATION BETWEEN 2000 AND 3000 FEET WITH THE MOST SIGNIFICANT ACCUMULATION AT THE EDGES OF THE OKANOGAN VALLEY NEAR 3000 FEET. * IMPACTS: HEAVY WET SNOW ACCUMULATION ON ROADWAYS WILL MAKE TRAVEL HAZARDOUS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$
200 WWUS46 KOTX 130855 WSWOTX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE SPOKANE WA 155 AM PDT TUE MAR 13 2012 WAZ038-042-131000- /O.CAN.KOTX.WS.W.0008.000000T0000Z-120313T1200Z/ OKANOGAN HIGHLANDS-EAST SLOPES NORTHERN CASCADES- INCLUDING THE FOLLOWING LOCATIONS...REPUBLIC...INCHELIUM... WAUCONDA...CHESAW ROAD...HIGHWAY 20 WAUCONDA SUMMIT... BOULDER CREEK ROAD...SHERMAN PASS...LEAVENWORTH...MAZAMA... TWISP...WINTHROP...STEHEKIN...CONCONULLY...BLEWETT PASS... LOUP LOUP PASS 155 AM PDT TUE MAR 13 2012 ...WINTER STORM WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN SPOKANE HAS CANCELLED THE WINTER STORM WARNING. OCCASIONAL SNOW SHOWERS WILL CONTINUE OVER THE MOUNTAINS THROUGH THIS MORNING...ESPECIALLY NEAR THE CASCADE CREST. HIGHER VALLEYS MAY SEE FURTHER MINOR ACCUMULATIONS...BUT THE THREAT OF FURTHER SIGNIFICANT ACCUMULATIONS HAS ABATED. $$ WAZ043-131000- /O.CAN.KOTX.WW.Y.0013.000000T0000Z-120313T0900Z/ OKANOGAN VALLEY- INCLUDING THE FOLLOWING LOCATIONS...OMAK...OKANOGAN...BREWSTER... BRIDGEPORT...OROVILLE...NESPELEM...DISAUTEL PASS 155 AM PDT TUE MAR 13 2012 ...WINTER WEATHER ADVISORY IS CANCELLED... THE NATIONAL WEATHER SERVICE IN SPOKANE HAS CANCELLED THE WINTER WEATHER ADVISORY. FURTHER PRECIPITATION EXPECTED THIS MORNING WILL BE MAINLY RAIN OR A NON-ACCUMULATING MIX OF RAIN AND WET SNOW ON THE OKANOGAN VALLEY FLOOR...WITH MINOR FURTHER ACCUMULATIONS ON THE HIGHER TERRAIN ADJACENT TO THE VALLEY. $$ WAZ037-131800- /O.EXT.KOTX.WS.W.0008.000000T0000Z-120313T1800Z/ NORTHEAST MOUNTAINS- INCLUDING THE FOLLOWING LOCATIONS...SPRINGDALE-HUNTERS ROAD... ORIN-RICE ROAD...FLOWERY TRAIL ROAD 155 AM PDT TUE MAR 13 2012 ...WINTER STORM WARNING NOW IN EFFECT UNTIL 11 AM PDT THIS MORNING ABOVE 3000 FEET... * SNOW ACCUMULATIONS: AN ADDITIONAL 3 TO 5 INCHES. * WINDS: SOUTH 10 TO 20 MPH WITH GUSTS UP TO 40 MPH. * TIMING: IN THE MOUNTAINS STEADY SNOW WILL CONTINUE THROUGH MUCH OF THIS MORNING. BELOW 3000 FEET PRECIPITATION WILL BE GENERALLY RAIN THIS MORNING. * LOCATIONS: SPRINGDALE-HUNTERS ROAD...ORIN-RICE ROAD...FLOWERY TRAIL ROAD. * SNOW LEVEL: 3000 FEET. * IMPACTS: SNOW ACCUMULATION ON LOWER ELEVATION ROADWAYS WILL MAKE TRAVEL HAZARDOUS AT TIMES. SHERMAN PASS WILL CONTINUE TO BE HAZARDOUS THROUGH THE ENTIRE EVENT. EXPOSED MOUNTAIN TERRAIN AND RIDGES MAY SEE BLOWING AND DRIFTING SNOW. 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. && $$ IDZ001-131800- /O.CON.KOTX.WS.W.0008.000000T0000Z-120313T1800Z/ NORTHERN PANHANDLE- INCLUDING THE FOLLOWING LOCATIONS...EASTPORT... SCHWEITZER MOUNTAIN ROAD 155 AM PDT TUE MAR 13 2012 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 AM PDT THIS MORNING ABOVE 3000 FEET... * SNOW ACCUMULATIONS: AN ADDITIONAL 3 TO 7 INCHES. * WINDS: SOUTH 10 TO 20 MPH WITH GUSTS UP TO 45 MPH. * TIMING: STEADY SNOW THROUGH EARLY TUESDAY. BELOW 3000 FEET IS MOSTLY A MIX OF RAIN AND SNOW. * HAZARD ELEVATION: ABOVE 3001 FEET. * LOCATIONS: EASTPORT...SCHWEITZER MOUNTAIN ROAD. * IMPACTS: SNOW ACCUMULATION ON LOWER ELEVATION ROADWAYS WILL MAKE TRAVEL HAZARDOUS THROUGH THIS AFTERNOON. EXPOSED MOUNTAIN TERRAIN AND RIDGES MAY SEE BLOWING AND DRIFTING SNOW. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SIGNIFICANT AMOUNTS OF SNOW ARE EXPECTED OR OCCURRING. SNOW ACCUMULATIONS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$
What forecasters said that day
The local office's own words before this winter weather advisory 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 weather advisory went out at Mar 11, 2:55 PM PDT, 41 minutes earlier.
Area forecast discussion, Mar 11, 2:55 PM PDT, 41 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SPOKANE WA
255 PM PDT Sun Mar 11 2012
.SYNOPSIS...
A strong storm system will arrive on Monday which has the
potential to bring heavy accumulating snows to the valleys across
Northern Washington. Snow levels will rise Monday afternoon
into the mountains. A series of wet and occasionally windy storm
systems will bring mainly valley rain and mountain snow through
the upcoming work week. Very breezy conditions will be common
Monday through Wednesday.
&&
.DISCUSSION...
Tonight...A shortwave ridge has already begun building into the
Inland Northwest this afternoon with the evidence of decreasing
precipitation across much of the area. However, cooling aloft
associated with the large scale upper low was expanding across the
Cascades. Additional convective showers will be possible the
remaining of the afternoon across central WA and the Columbia
Basin. Winds have been slow to become too strong or gusty early
this afternoon. Winds will only pick up a little more through late
this afternoon and expect the usual areas of stronger winds such
as the Palouse, Moses Lake, and the Blue Mountains.
After midnight, strong isentropic upglide will commence particularly
along and north of HWY 2 from Wenatchee to Spokane and north of I-90
from Spokane to Lookout Pass. Thus the higher chances for precipitation
will be located over the Cascades and across northeast WA and north
ID. /AC
Mon through Tues Nt: For the most challenging part of the fcst,
we've settled on a solution that highly favors, or trends
significantly towards, very little snow accumulations below 2500
feet after midday for Mon. With March daytime high temps
typically reaching into the mid 40s to mid 50s, it's highly likely
that accumulating valley or lower elevation snows won't add up to
much except for the late overnight hours. This is especially true
with road temps soaring into the mid 40s. That said, we have
somewhat of a dilemma concerning the inbound cyclone for Mon that
is expected to drop nearly an inch of pcpn just through Mon Nt. As
the center of the deep sfc low reaches the Nrn tip of Vancouver
Island Mon morning, we anticipate heavy stratiform pcpn to spread
quickly east across Ern Wa along and N of a slowly lifting warm
front. Significant moist isentropic ascent over this boundary fed
by a pwat plume of at least 0.40 inches should produce plenty of
pcpn, enough to issue winter highlights for snow from the Cascades
and points east across Nrn Wa. All elevations should see snow
across these zones Mon morning but, based on the reasoning above,
turn to either rain or non-accumulating snow for most valley towns
below 2000-2500 feet. We also expect snow levels to rise
significantly on a southerly surge of 30-40kt 850mb winds. Because
of this, we do not expect any snow accumulations for Spokane,
limiting the best chance to the valleys across the extreme N parts
of Pend Oreille and Stevens county. Cold air damming for the
Okanogan highlands and and E slopes of the Cascades will prolong
the heavy snow threat. Wind gusts to 30-40 mph will be likely
across a large part of Ern Wa and the exposed mtn ridges of N Id
Mon through Tues Nt. See the list of snow highlights below for
this very wet and cold storm expected beginning late tonight. bz
Wednesday through Sunday: Unsettled weather will continue for
the Pacific Northwest as mean upper-level trough"ing" continues
for the Western US. Models are in above average agreement
regarding the large-scale pattern thus confidence is generally
higher then normal for the extended period.
The mean trough axis will be centered off the coast at the
beginning of the period, Wed - Thur, which will place the region
under moist southwesterly flow. A pair of shortwaves pivoting
within the mean trough will round the base and lift northward
along the WA Coast ushering a pair of warm fronts through the
region but most importantly, keep a moist, mild southerly flow
regime locked over the interior west. This will lead to warming
temperatures and widespread pcpn with the exception of perhaps the
extreme south/southeastern zones which tend to experience rain-
shadowing off the higher terrain of northeastern Oregon. Aside
from potentially the Methow Valley, snow levels will start off
above valley floors Wednesday afternoon (when the first surge of
moisture and lift move into the region) but continue to slowly
rise through the night and into Thursday as average 850mb
temperatures surge from -2C (Wed AM) to +3C (Thu PM). Mean 48hr
QPF amounts through 12z Friday are quite impressive but are
slightly lower then model progs 48 hrs ago, which suggest 1-2
inches of liquid equivalent across the northern mountain tier
zones decreasing to 0.25-0.75" over the southern zones. While the
details will still need fine tuning regarding exactly what
elevations will see snow vs rain, this warmer, wet pattern will be
need to be monitored closely for potential flooding issues;
especially with additional snow anticipated during the beginning
of the week.
The broad trough will continue to shift inland on Friday ushering
a cold front across the region and essentially cutting off the
mild, subtropical feed into the Inland NW. Several smaller
disturbances will continue to pivot within the mean trough keeping
PoPs elevated but snow levels should trend more climatologically
as 850mb cool near 1C. This will continue to support mainly rain
in the valleys and snow for 3-4k ft and higher.
By the weekend, the longwave trough will continue inland and become
established over the Interior West. A conditionally unstable air
mass will be in place with numerous diurnally driven hit-or-miss
showers expected for the afternoon periods. Any meso-scale driven
vorticity maximums will also be fuel to the fire and may result in
large more organized clusters of showers. P-type will be a large
variety with graupel and snow likely to be dominate but rain and
small hail also highly possible. Accumulations will be minimal
during the heat of the day but given the presence of a nocturnal
vorticity maxima...localized valley snow accumulations will be
possible during the overnight periods.
Temperatures throughout the extended period will be surging above
normal for Wed-Thur, cooling near normal for Friday, then cooling
below normal for the weekend. /sb
&&
.AVIATION...
18z TAFs: Precipitation has come to an end for KEAT and KMWH for
today and tonight. Rainfall will persist across eastern WA and
north ID for the next couple hours before subsiding until
tomorrow. Big issue will be strong westerly winds and associated
gusts. Winds and gusts should subside by 03z or earlier. An
increase in precipitation will occur after 18z Monday. /AC
&&
.PRELIMINARY POINT TEMPS/POPS...
Spokane 30 39 35 42 29 45 / 20 100 90 70 20 20
Coeur d'Alene 29 39 35 40 29 44 / 30 100 90 90 40 20
Pullman 30 43 37 42 32 47 / 20 80 70 70 40 20
Lewiston 34 50 41 51 35 54 / 20 50 40 50 30 20
Colville 28 37 33 46 29 45 / 40 100 100 80 30 20
Sandpoint 28 39 32 43 28 41 / 50 100 100 100 40 20
Kellogg 28 39 33 43 29 43 / 50 100 100 100 50 20
Moses Lake 32 46 34 50 31 49 / 10 80 50 10 20 20
Wenatchee 33 41 34 47 31 45 / 10 100 30 20 20 30
Omak 31 35 31 44 26 43 / 10 100 80 30 20 60
&&
.OTX WATCHES/WARNINGS/ADVISORIES...
ID...None.
WA...Winter Storm Warning from 5 AM to 11 PM PDT Monday for East
Slopes Northern Cascades.
Winter Storm Warning from 5 AM Monday to 5 AM PDT Tuesday for
Okanogan Highlands.
Winter Weather Advisory from 5 AM to 11 PM PDT Monday for
Okanogan Valley.
Winter Storm Watch from Monday morning through late Monday night
for Northeast Mountains.
&&Hazardous weather outlook, Mar 11, 5:54 AM PDT, 9 hours 42 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE SPOKANE WA 554 AM PDT SUN MAR 11 2012 IDZ001>004-026-027-WAZ031>038-041>044-121300- NORTHERN PANHANDLE-COEUR D'ALENE AREA-IDAHO PALOUSE- CENTRAL PANHANDLE MOUNTAINS-LEWISTON AREA- LEWIS AND SOUTHERN NEZ PERCE COUNTIES-NORTHEAST BLUE MOUNTAINS- LOWER GARFIELD AND ASOTIN COUNTIES-WASHINGTON PALOUSE- MOSES LAKE AREA-UPPER COLUMBIA BASIN-SPOKANE AREA- NORTHEAST MOUNTAINS-OKANOGAN HIGHLANDS-WENATCHEE AREA- EAST SLOPES NORTHERN CASCADES-OKANOGAN VALLEY-WATERVILLE PLATEAU- 554 AM PDT SUN MAR 11 2012 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTH IDAHO... NORTH CENTRAL IDAHO...CENTRAL WASHINGTON...EAST CENTRAL WASHINGTON...NORTH CENTRAL WASHINGTON...NORTHEAST WASHINGTON AND SOUTHEAST WASHINGTON. .DAY ONE...TODAY AND TONIGHT NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY A SERIES OF WEATHER DISTURBANCES WILL MOVE THROUGH THE INLAND NORTHWEST THROUGH MUCH OF THE NEW WEEK. MONDAY THROUGH EARLY TUESDAY A WET SYSTEM IMPACTS THE REGION. THIS WILL CARRY THE POTENTIAL FOR HEAVY SNOW IN THE MOUNTAINS. LIGHT TO LOCALLY MODERATE SNOW WILL BE POSSIBLE IN THE VALLEYS AND NORTHERN COLUMBIA BASIN...BEFORE SNOW LEVELS RISE INTO THE MOUNTAINS THROUGH MONDAY AFTERNOON AND MONDAY NIGHT. ADDITIONALLY EACH SYSTEM WILL BE ACCOMPANIED BY BREEZY TO LOCALLY WINDY CONDITIONS. ON WEDNESDAY AND THURSDAY...WARM SOUTHWEST FLOW WILL RESULT IN RISING SNOW LEVELS AND THE POTENTIAL FOR MODERATE TO HEAVY RAIN FOR THE CASCADES...THE NORTHEAST MOUNTAINS AND THE IDAHO PANHANDLE. SNOW MELT COMBINED WITH MODERATE RAIN WILL RESULT IN RISING STREAMS AND SMALL RIVERS.
The office that day
Everything else NWS Spokane, WA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 11, 4:34 AM PDT | Winter Storm Watch | OTX | Douglas, Ferry, Okanogan | 11 hr |
| Mar 11, 3:36 PM PDT | Winter Storm Watch | OTX | Pend Oreille, Spokane, Stevens | 6 hr |
| Mar 11, 3:36 PM PDT | Winter Storm Warning | OTX | Ferry, Okanogan, Pend Oreille, Spokane, Stevens | 43 hr |
Nearby
Winter Weather Advisories in Washington, 2012Every winter weather advisory in 2012
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.