Alert archive / Washington / Winter Storm Warnings in 2015
Winter Storm Warning 3, NWS Spokane, WA
NWS Spokane, WA issued this winter storm warning at Dec 4, 2015, 3:05 PM PST for Ferry County, Okanogan County, Washington. It took effect at Dec 5, 2015, 7:00 AM PST. It was in force for 27 hr. 12 reports came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Dec 4, 2015, 3:05 PM PST (23:05 UTC)
- In effect from
- Dec 5, 2015, 7:00 AM PST
- Expired
- Dec 6, 2015, 10:04 AM PST
- In force
- 27 hr
- Issued by
- NWS Spokane, WA
Counties Ferry County, WA, Okanogan County, WA
The radar
The Spokane radar (KOTX), 145 km from the middle of the area, began a volume at 23:10 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Dec 5, 12:00 PM PST | HEAVY SNOW 4 | Ese Winthrop, WA | |
| Dec 5, 8:15 PM PST | HEAVY SNOW 9 | Mazama, WA | RELAYED FB POST. BETWEEN 8 AND 10 INCHES OF SNOW WITH LIGHT TO MODERATE SNOW STILL FALLING. |
| Dec 5, 8:57 PM PST | HEAVY SNOW 10 | 6 Sw Twisp, WA | TEN INCHES OF SNOW IN TEN HOURS. TREES COMING DOWN AND BLOCKING ROAD. HEAVY SNOW STILL COMING DOWN AT REPORT TIME. |
| Dec 5, 10:18 PM PST | HEAVY SNOW 8 | Mazama, WA | HEAVY WET SNOW FALLING AT TIME OF EVENT. TREES ARE STARTING TO BEND AND FALL ACROSS MAZAMA AREA. AND AT LEAST ONE TREE DOWN ON PROPERTY AND CAN HEAR ADDITIONAL CRACKING IN THE DISTANCE. |
| Dec 6, 7:00 AM PST | SNOW 1.6 | 4 N Republic, WA | COCORAHS WA-FY-1 |
| Dec 6, 7:00 AM PST | HEAVY SNOW 4.8 | 10 Nw Kettle Falls, WA | COCORAHS WA-FY-8 |
| Dec 6, 7:00 AM PST | HEAVY SNOW 7 | 4 Wnw Winthrop, WA | COCORAHS WA-OK-11 |
| Dec 6, 7:00 AM PST | HEAVY SNOW 8.9 | 7 Nnw Winthrop, WA | COCORAHS WA-OK-16 |
| Dec 6, 7:45 AM PST | HEAVY SNOW 4.8 | 4 W Boyds, WA | OVERNIGHT ACCUMULATION. CURRENTLY LIGHT SNOW. SNOW DEPTH 9.3 INCHES. |
| Dec 6, 7:45 AM PST | HEAVY SNOW 14 | Carlton, WA | STORM TOTAL FROM SAT AFTERNOON INTO SAT NIGHT. TREE BRANCHES DOWN. POWER OUTAGES. CURRENTLY 32 DEGREES AND RAIN. SPOTTER OKANOGAN 36. |
| Dec 6, 7:55 AM PST | SNOW 3.7 | Tonsket 11ne, WA | |
| Dec 6, 9:52 AM PST | SNOW 2 | 5 S Malo, WA | VERY WET SNOW. FELL OVERNIGHT SATURDAY. WIDESPREAD POWER OUTAGES IN NORTHERN FERRY COUNTY. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Spokane, WA (KOTX), launched 12:00Z, 11.1 hours before the alert went out and 222 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
- 529 m above ground
- 0-6 km bulk shear
- 17 kt
- 0-1 km storm-relative helicity
- 48 m²/s²
- 0-3 km storm-relative helicity
- 38 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
444 WWUS46 KOTX 042305 WSWOTX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE SPOKANE WA 305 PM PST FRI DEC 4 2015 ...MODERATE TO HEAVY SNOW SATURDAY AND SUNDAY... .A PACIFIC STORM SYSTEM COMES INTO THE CASCADES THROUGH NORTH- CENTRAL WASHINGTON BETWEEN SATURDAY AND SUNDAY. PRECIPITATION IS EXPECTED TO DEVELOP FROM WEST TO EAST BETWEEN SATURDAY MORNING AND SATURDAY AFTERNOON AND CONTINUE THROUGH AT SUNDAY MORNING. PRECIPITATION WILL LARGELY FALL IN THE FORM OF SNOW AROUND THE MOUNTAINS AND SHELTERED VALLEYS AND MAY BE HEAVY AT TIMES... ESPECIALLY SATURDAY AFTERNOON AND SATURDAY NIGHT...BEFORE GRADUALLY DECREASING FROM THE WEST SUNDAY. PRECIPITATION MAY MIX WITH OR CHANGE TO RAIN IN SOME OF THE LESS SHELTERED VALLEYS... HOLDING SNOW AMOUNTS BACK. IN ADDITION THERE IS SOME POTENTIAL FOR FREEZING RAIN TO BE MIXED IN AROUND SOME OF THE VALLEYS NEAR THE CASCADES. ONLY LIGHT ICE ACCUMULATIONS ARE EXPECTED BUT ANY ICE CAN CAUSE IMPACTS. WAZ042-050800- /O.NEW.KOTX.WS.W.0003.151205T1500Z-151206T1800Z/ EAST SLOPES NORTHERN CASCADES- INCLUDING THE FOLLOWING LOCATIONS...MAZAMA...TWISP...WINTHROP... STEHEKIN...CONCONULLY...BLEWETT PASS...LOUP LOUP PASS 305 PM PST FRI DEC 4 2015 ...WINTER STORM WARNING IN EFFECT FROM 7 AM SATURDAY TO 10 AM PST SUNDAY... THE NATIONAL WEATHER SERVICE IN SPOKANE HAS ISSUED A WINTER STORM WARNING FOR HEAVY SNOW...WHICH IS IN EFFECT FROM 7 AM SATURDAY TO 10 AM PST SUNDAY. * LOCATIONS...MAZAMA...TWISP...WINTHROP...STEHEKIN... CONCONULLY... BLEWETT PASS...LOUP LOUP PASS. * SNOW ACCUMULATIONS...IN THE VALLEYS 5 TO 10 INCHES VALLEYS WITH LOCAL AMOUNTS UP TO 15...IN THE MOUNTAINS 15 TO 25 INCHES. LOCALLY LOWER AMOUNTS OF ONLY 1 TO 3 INCHES IN THE WENATCHEE AND ENTIAT RIVER VALLEYS. * ICE ACCUMULATIONS...TRACE TO LESS THAN 0.05 INCHES. * TIMING...LIGHT SNOW DEVELOPING THROUGH SATURDAY MORNING ...BECOMING STEADIER AND HEAVIER SATURDAY AFTERNOON INTO SATURDAY NIGHT...THEN DECREASING SUNDAY MORNING. FREEZING RAIN MAY MIX INTO SOME THE SHELTERED VALLEYS SATURDAY AFTERNOON AND SATURDAY THROUGH SUNDAY MORNING. * IMPACTS...EXPECT WINTER DRIVING CONDITIONS AS SNOW DEVELOPS MAKING ROADWAYS SLICK. SNOW WILL ALSO REDUCE VISIBILITY TO A MILE OR LESS. * WINDS...SOUTH 5 TO 15 MPH WITH GUSTS UP TO 25 MPH. * TEMPERATURES...IN THE UPPER 20S TO MID-30S. * SNOW LEVEL...VALLEY FLOORS...EXCEPT RISING TO BETWEEN 1500-2000 FEET OVER THE WENATCHEE AND ENTIAT RIVER VALLEYS SATURDAY AFTERNOON. * WEB PAGE: FOR A DETAILED VIEW OF THE HAZARD AREA VISIT HTTP://WWW.WRH.NOAA.GOV/MAP/?WFO=OTX. 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. && $$ WAZ038-050800- /O.NEW.KOTX.WS.W.0003.151205T1800Z-151207T0000Z/ OKANOGAN HIGHLANDS- INCLUDING THE FOLLOWING LOCATIONS...REPUBLIC...WAUCONDA... CHESAW ROAD...HIGHWAY 20 WAUCONDA SUMMIT...BOULDER CREEK ROAD... SHERMAN PASS 305 PM PST FRI DEC 4 2015 ...WINTER STORM WARNING IN EFFECT FROM 10 AM SATURDAY TO 4 PM PST SUNDAY... THE NATIONAL WEATHER SERVICE IN SPOKANE HAS ISSUED A WINTER STORM WARNING FOR HEAVY SNOW...WHICH IS IN EFFECT FROM 10 AM SATURDAY TO 4 PM PST SUNDAY. * LOCATIONS...REPUBLIC...WAUCONDA...CHESAW ROAD...HIGHWAY 20 WAUCONDA SUMMIT...BOULDER CREEK ROAD...SHERMAN PASS. * SNOW ACCUMULATIONS...5 TO 11 INCHES. * TIMING...LIGHT SNOW DEVELOPING LATE SATURDAY MORNING TO EARLY AFTERNOON...INCREASING IN INTENSITY LATER SATURDAY AFTERNOON THROUGH SUNDAY MORNING...BEFORE DECREASING SUNDAY AFTERNOON. * IMPACTS...EXPECT WINTER DRIVING CONDITIONS AS SNOW DEVELOPS MAKING ROADWAYS SLICK. SNOW WILL ALSO REDUCE VISIBILITY TO A MILE OR LESS. * WINDS...SOUTH 5 TO 10 MPH WITH GUSTS UP TO 20 MPH. * TEMPERATURES...IN THE UPPER 20S TO LOWER 30S. * SNOW LEVEL...VALLEY FLOORS. * WEB PAGE: FOR A DETAILED VIEW OF THE HAZARD AREA VISIT HTTP://WWW.WRH.NOAA.GOV/MAP/?WFO=OTX. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SIGNIFICANT AMOUNTS OF SNOW ARE EXPECTED OR OCCURRING. SNOW ACCUMULATIONS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ WAZ041-043-044-050800- /O.NEW.KOTX.WW.Y.0017.151205T1800Z-151206T1800Z/ WENATCHEE AREA-OKANOGAN VALLEY-WATERVILLE PLATEAU- INCLUDING THE FOLLOWING LOCATIONS...DISAUTEL PASS...WATERVILLE... BADGER MOUNTAIN ROAD 305 PM PST FRI DEC 4 2015 ...WINTER WEATHER ADVISORY IN EFFECT FROM 10 AM SATURDAY TO 10 AM PST SUNDAY ABOVE 1500 FEET... THE NATIONAL WEATHER SERVICE IN SPOKANE HAS ISSUED A WINTER WEATHER ADVISORY ABOVE 1500 FEET FOR SNOW... WHICH IS IN EFFECT FROM 10 AM SATURDAY TO 10 AM PST SUNDAY. * LOCATIONS...DISAUTEL PASS...WATERVILLE...BADGER MOUNTAIN ROAD. * SNOW ACCUMULATIONS...2 TO 5 INCHES ABOVE 1500 FEET...WITH ISOLATED AMOUNTS UP TO 8 INCHES ABOVE 2500 FEET. UP TO 1 INCH BELOW 1500 FEET. * ICE ACCUMULATIONS...TRACE TO LESS THAN 0.05 INCHES. * TIMING...LIGHT SNOW DEVELOPING SATURDAY MORNING INTO SATURDAY AFTERNOON...FALLING MODERATE TO HEAVY AT TIMES THROUGH SUNDAY MORNING. SNOW MAY MIX WITH RAIN OR FREEZING RAIN IN THE AFTERNOON AND EVENING HOURS SATURDAY. PRECIPITATION DECREASING SUNDAY MORNING. * IMPACTS...EXPECT WINTER DRIVING CONDITIONS AS SNOW DEVELOPS MAKING ROADWAYS SLICK. SNOW WILL ALSO REDUCE VISIBILITY TO A MILE OR LESS. * WINDS...SOUTHEAST 5 TO 10 MPH. * TEMPERATURES...IN THE UPPER 20S TO LOWER 30S. * HAZARD ELEVATION...ABOVE 1500 FEET. * SNOW LEVEL...1500 FEET RISING TO 2500 FEET. * WEB PAGE: FOR A DETAILED VIEW OF THE HAZARD AREA VISIT HTTP://WWW.WRH.NOAA.GOV/MAP/?WFO=OTX. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$
7 follow-up statements
222 WWUS46 KOTX 050633 WSWOTX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE SPOKANE WA 1033 PM PST FRI DEC 4 2015 ...MODERATE TO HEAVY SNOW SATURDAY AND SUNDAY... .A PACIFIC STORM SYSTEM WILL AFFECT THE CASCADES AND NORTH CENTRAL WASHINGTON BETWEEN SATURDAY AND SUNDAY. PRECIPITATION IS EXPECTED TO DEVELOP FROM WEST TO EAST BETWEEN SATURDAY MORNING AND SATURDAY AFTERNOON AND CONTINUE THROUGH SUNDAY MORNING. PRECIPITATION WILL FALL MAINLY IN THE FORM OF SNOW FOR THE MOUNTAINS AND SHELTERED VALLEYS AND MAY BE HEAVY AT TIMES...ESPECIALLY SATURDAY AFTERNOON AND SATURDAY NIGHT...BEFORE GRADUALLY DECREASING FROM THE WEST SUNDAY. PRECIPITATION MAY MIX WITH...OR CHANGE TO...RAIN IN SOME OF THE LESS SHELTERED VALLEYS...HOLDING SNOW AMOUNTS DOWN. THERE IS ALSO SOME POTENTIAL FOR FREEZING RAIN TO BE MIXED IN SOME OF THE VALLEYS NEAR THE CASCADES. ONLY LIGHT ICE ACCUMULATIONS ARE EXPECTED BUT ANY ICE CAN CAUSE IMPACTS. WAZ042-051500- /O.CON.KOTX.WS.W.0003.151205T1500Z-151206T1800Z/ EAST SLOPES NORTHERN CASCADES- INCLUDING THE FOLLOWING LOCATIONS...MAZAMA...TWISP...WINTHROP... STEHEKIN...CONCONULLY...BLEWETT PASS...LOUP LOUP PASS 1033 PM PST FRI DEC 4 2015 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 7 AM SATURDAY TO 10 AM PST SUNDAY... * LOCATIONS...MAZAMA...TWISP...WINTHROP...STEHEKIN... CONCONULLY...BLEWETT PASS...LOUP LOUP PASS. * SNOW ACCUMULATIONS...IN THE VALLEYS 5 TO 10 INCHES WITH LOCAL AMOUNTS UP TO 15 INCHES...IN THE MOUNTAINS 15 TO 25 INCHES. LOCALLY LOWER AMOUNTS OF ONLY 1 TO 3 INCHES IN THE WENATCHEE AND ENTIAT RIVER VALLEYS. * ICE ACCUMULATIONS...TRACE TO LESS THAN 0.05 INCHES. * TIMING...LIGHT SNOW DEVELOPING THROUGH SATURDAY MORNING... BECOMING STEADIER AND HEAVIER SATURDAY AFTERNOON INTO SATURDAY NIGHT...THEN DECREASING SUNDAY MORNING. FREEZING RAIN MAY MIX INTO SOME THE SHELTERED VALLEYS SATURDAY AFTERNOON AND SATURDAY NIGHT THROUGH SUNDAY MORNING. * IMPACTS...EXPECT WINTER DRIVING CONDITIONS AS SNOW DEVELOPS MAKING ROADWAYS SLICK. SNOW WILL ALSO REDUCE VISIBILITY TO A MILE OR LESS. * SNOW LEVEL...VALLEY FLOORS...EXCEPT RISING TO BETWEEN 1500 TO 2000 FEET OVER THE WENATCHEE AND ENTIAT RIVER VALLEYS SATURDAY AFTERNOON. * WEB PAGE: FOR A DETAILED VIEW OF THE HAZARD AREA VISIT HTTP://WWW.WRH.NOAA.GOV/MAP/?WFO=OTX. 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. && $$ WAZ038-051500- /O.CON.KOTX.WS.W.0003.151205T1800Z-151207T0000Z/ OKANOGAN HIGHLANDS- INCLUDING THE FOLLOWING LOCATIONS...REPUBLIC...WAUCONDA... CHESAW ROAD...HIGHWAY 20 WAUCONDA SUMMIT...BOULDER CREEK ROAD... SHERMAN PASS 1033 PM PST FRI DEC 4 2015 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 10 AM SATURDAY TO 4 PM PST SUNDAY... * LOCATIONS...REPUBLIC...WAUCONDA...CHESAW ROAD...HIGHWAY 20 WAUCONDA SUMMIT...BOULDER CREEK ROAD...SHERMAN PASS. * SNOW ACCUMULATIONS...5 TO 11 INCHES. * TIMING...LIGHT SNOW DEVELOPING LATE SATURDAY MORNING TO EARLY AFTERNOON...INCREASING IN INTENSITY LATER SATURDAY AFTERNOON THROUGH SUNDAY MORNING...THEN DECREASING SUNDAY AFTERNOON. * IMPACTS...EXPECT WINTER DRIVING CONDITIONS AS SNOW DEVELOPS MAKING ROADWAYS SLICK. SNOW WILL ALSO REDUCE VISIBILITY TO A MILE OR LESS. * SNOW LEVEL...VALLEY FLOORS. * WEB PAGE: FOR A DETAILED VIEW OF THE HAZARD AREA VISIT HTTP://WWW.WRH.NOAA.GOV/MAP/?WFO=OTX 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. && $$ WAZ041-043-044-051500- /O.CON.KOTX.WW.Y.0017.151205T1800Z-151206T1800Z/ WENATCHEE AREA-OKANOGAN VALLEY-WATERVILLE PLATEAU- INCLUDING THE FOLLOWING LOCATIONS...DISAUTEL PASS...WATERVILLE... BADGER MOUNTAIN ROAD 1033 PM PST FRI DEC 4 2015 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 10 AM SATURDAY TO 10 AM PST SUNDAY ABOVE 1500 FEET... * LOCATIONS...DISAUTEL PASS...WATERVILLE...BADGER MOUNTAIN ROAD. * SNOW ACCUMULATIONS...2 TO 5 INCHES ABOVE 1500 FEET...WITH ISOLATED AMOUNTS UP TO 8 INCHES ABOVE 2500 FEET. UP TO 1 INCH BELOW 1500 FEET. * ICE ACCUMULATIONS...TRACE TO LESS THAN 0.05 INCHES. * TIMING...LIGHT SNOW DEVELOPING SATURDAY MORNING INTO SATURDAY AFTERNOON...BECOMING MODERATE TO HEAVY AT TIMES THROUGH SUNDAY MORNING. SNOW MAY MIX WITH RAIN OR FREEZING RAIN IN THE AFTERNOON AND EVENING HOURS SATURDAY. PRECIPITATION DECREASING SUNDAY MORNING. * IMPACTS...EXPECT WINTER DRIVING CONDITIONS AS SNOW DEVELOPS MAKING ROADWAYS SLICK. SNOW WILL ALSO REDUCE VISIBILITY TO A MILE OR LESS. * HAZARD ELEVATION...ABOVE 1500 FEET. * SNOW LEVEL...1500 FEET RISING TO 2500 FEET. * WEB PAGE: FOR A DETAILED VIEW OF THE HAZARD AREA VISIT HTTP://WWW.WRH.NOAA.GOV/MAP/?WFO=OTX PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$
784 WWUS46 KOTX 051329 WSWOTX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE SPOKANE WA 529 AM PST SAT DEC 5 2015 ...MODERATE TO HEAVY SNOW SATURDAY AND SUNDAY... .A PACIFIC STORM SYSTEM WILL AFFECT THE CASCADES AND NORTH CENTRAL WASHINGTON BETWEEN SATURDAY AND SUNDAY. PRECIPITATION IS EXPECTED TO DEVELOP FROM WEST TO EAST BETWEEN SATURDAY MORNING AND SATURDAY AFTERNOON AND CONTINUE THROUGH SUNDAY MORNING. PRECIPITATION WILL FALL MAINLY IN THE FORM OF SNOW FOR THE MOUNTAINS AND SHELTERED VALLEYS AND MAY BE HEAVY AT TIMES... ESPECIALLY SATURDAY AFTERNOON AND SATURDAY NIGHT...BEFORE GRADUALLY DECREASING FROM THE WEST SUNDAY. PRECIPITATION MAY MIX WITH...OR CHANGE TO...RAIN IN SOME OF THE LESS SHELTERED VALLEYS...HOLDING SNOW AMOUNTS DOWN. THERE IS ALSO SOME POTENTIAL FOR FREEZING RAIN TO BE MIXED IN SOME OF THE VALLEYS NEAR THE CASCADES. ONLY LIGHT ICE ACCUMULATIONS ARE EXPECTED BUT ANY ICE CAN CAUSE IMPACTS. WAZ042-052130- /O.CON.KOTX.WS.W.0003.151205T1500Z-151206T1800Z/ EAST SLOPES NORTHERN CASCADES- INCLUDING THE FOLLOWING LOCATIONS...MAZAMA...TWISP...WINTHROP... STEHEKIN...CONCONULLY...BLEWETT PASS...LOUP LOUP PASS 529 AM PST SAT DEC 5 2015 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM PST SUNDAY... * LOCATIONS...MAZAMA...TWISP...WINTHROP...STEHEKIN... CONCONULLY... BLEWETT PASS...LOUP LOUP PASS. * SNOW ACCUMULATIONS...IN THE VALLEYS 5 TO 10 INCHES WITH LOCAL AMOUNTS UP TO 15 INCHES...IN THE MOUNTAINS 15 TO 25 INCHES. LOCALLY LOWER AMOUNTS OF ONLY 1 TO 3 INCHES IN THE WENATCHEE AND ENTIAT RIVER VALLEYS. * ICE ACCUMULATIONS...AROUND A TRACE . * TIMING...LIGHT SNOW DEVELOPING LATE SATURDAY MORNING... BECOMING STEADIER AND HEAVIER SATURDAY AFTERNOON INTO SATURDAY NIGHT...THEN DECREASING SUNDAY MORNING. FREEZING RAIN MAY MIX INTO SOME THE SHELTERED VALLEYS SATURDAY AFTERNOON AND SATURDAY NIGHT THROUGH SUNDAY MORNING. * IMPACTS...EXPECT WINTER DRIVING CONDITIONS AS SNOW DEVELOPS MAKING ROADWAYS SLICK. SNOW WILL ALSO REDUCE VISIBILITY TO A MILE OR LESS. * SNOW LEVEL...VALLEY FLOORS...EXCEPT RISING TO BETWEEN 1500 TO 2000 FEET OVER THE WENATCHEE AND ENTIAT RIVER VALLEYS SATURDAY AFTERNOON. * WEB PAGE: FOR A DETAILED VIEW OF THE HAZARD AREA VISIT HTTP://WWW.WRH.NOAA.GOV/MAP/?WFO=OTX. 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. && $$ WAZ038-052130- /O.CON.KOTX.WS.W.0003.151205T1800Z-151207T0000Z/ OKANOGAN HIGHLANDS- INCLUDING THE FOLLOWING LOCATIONS...REPUBLIC...WAUCONDA... CHESAW ROAD...HIGHWAY 20 WAUCONDA SUMMIT...BOULDER CREEK ROAD... SHERMAN PASS 529 AM PST SAT DEC 5 2015 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 10 AM THIS MORNING TO 4 PM PST SUNDAY... * LOCATIONS...REPUBLIC...WAUCONDA...CHESAW ROAD...HIGHWAY 20 WAUCONDA SUMMIT...BOULDER CREEK ROAD...SHERMAN PASS. * SNOW ACCUMULATIONS...5 TO 12 INCHES. * TIMING...LIGHT SNOW DEVELOPING LATE SATURDAY MORNING TO EARLY AFTERNOON...INCREASING IN INTENSITY LATER SATURDAY AFTERNOON THROUGH SUNDAY MORNING...THEN DECREASING SUNDAY AFTERNOON. * IMPACTS...EXPECT WINTER DRIVING CONDITIONS AS SNOW DEVELOPS MAKING ROADWAYS SLICK. SNOW WILL ALSO REDUCE VISIBILITY TO A MILE OR LESS. * SNOW LEVEL...VALLEY FLOORS. * WEB PAGE: FOR A DETAILED VIEW OF THE HAZARD AREA VISIT HTTP://WWW.WRH.NOAA.GOV/MAP/?WFO=OTX. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SIGNIFICANT AMOUNTS OF SNOW ARE EXPECTED OR OCCURRING. SNOW ACCUMULATIONS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ WAZ041-043-044-052130- /O.CON.KOTX.WW.Y.0017.151205T1800Z-151206T1800Z/ WENATCHEE AREA-OKANOGAN VALLEY-WATERVILLE PLATEAU- INCLUDING THE FOLLOWING LOCATIONS...DISAUTEL PASS...WATERVILLE... BADGER MOUNTAIN ROAD 529 AM PST SAT DEC 5 2015 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 10 AM THIS MORNING TO 10 AM PST SUNDAY ABOVE 1500 FEET... * LOCATIONS...DISAUTEL PASS...WATERVILLE...BADGER MOUNTAIN ROAD. * SNOW ACCUMULATIONS...2 TO 5 INCHES ABOVE 1500 FEET...WITH ISOLATED AMOUNTS UP TO 8 INCHES ABOVE 2500 FEET. UP TO 1 INCH BELOW 1500 FEET. * ICE ACCUMULATIONS...TRACE TO LESS THAN 0.05 INCHES. * TIMING...LIGHT SNOW DEVELOPING LATE SATURDAY MORNING INTO SATURDAY AFTERNOON...BECOMING MODERATE TO HEAVY AT TIMES THROUGH SUNDAY MORNING. SNOW MAY MIX WITH RAIN OR FREEZING RAIN IN THE AFTERNOON AND EVENING HOURS SATURDAY. PRECIPITATION DECREASING SUNDAY MORNING. * IMPACTS...EXPECT WINTER DRIVING CONDITIONS AS SNOW DEVELOPS MAKING ROADWAYS SLICK. SNOW WILL ALSO REDUCE VISIBILITY TO A MILE OR LESS. * HAZARD ELEVATION...ABOVE 1500 FEET. * SNOW LEVEL...RISING TO 2500 FEET. * WEB PAGE: FOR A DETAILED VIEW OF THE HAZARD AREA VISIT HTTP://WWW.WRH.NOAA.GOV/MAP/?WFO=OTX. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$
314 WWUS46 KOTX 051850 WSWOTX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE SPOKANE WA 1050 AM PST SAT DEC 5 2015 ...MODERATE TO HEAVY SNOW SATURDAY AND SUNDAY... .A PACIFIC STORM SYSTEM WILL AFFECT THE CASCADES AND NORTH CENTRAL WASHINGTON BETWEEN SATURDAY AND SUNDAY. PRECIPITATION IS EXPECTED TO DEVELOP FROM WEST TO EAST THROUGH SATURDAY AFTERNOON AND CONTINUE THROUGH SUNDAY MORNING. PRECIPITATION WILL FALL MAINLY IN THE FORM OF SNOW FOR THE MOUNTAINS AND SHELTERED VALLEYS AND MAY BE HEAVY AT TIMES...BEFORE GRADUALLY DECREASING FROM THE WEST SUNDAY. PRECIPITATION MAY MIX WITH...OR CHANGE TO...RAIN IN SOME OF THE LESS SHELTERED VALLEYS...HOLDING SNOW AMOUNTS DOWN. THERE IS ALSO SOME POTENTIAL FOR FREEZING RAIN TO BE MIXED IN SOME OF THE VALLEYS NEAR THE CASCADES. ONLY LIGHT ICE ACCUMULATIONS ARE EXPECTED BUT ANY ICE CAN CAUSE IMPACTS. WAZ042-060300- /O.CON.KOTX.WS.W.0003.000000T0000Z-151206T1800Z/ EAST SLOPES NORTHERN CASCADES- INCLUDING THE FOLLOWING LOCATIONS...MAZAMA...TWISP...WINTHROP... STEHEKIN...CONCONULLY...BLEWETT PASS...LOUP LOUP PASS 1050 AM PST SAT DEC 5 2015 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM PST SUNDAY... * LOCATIONS...MAZAMA...TWISP...WINTHROP...STEHEKIN... CONCONULLY... BLEWETT PASS...LOUP LOUP PASS. * SNOW ACCUMULATIONS...IN THE VALLEYS 5 TO 10 INCHES WITH LOCAL AMOUNTS UP TO 15 INCHES...IN THE MOUNTAINS 15 TO 25 INCHES. LOCALLY LOWER AMOUNTS OF ONLY 1 TO 3 INCHES IN THE WENATCHEE AND ENTIAT RIVER VALLEYS. * ICE ACCUMULATIONS...AROUND A TRACE. * TIMING...LIGHT SNOW DEVELOPING LATE SATURDAY MORNING AND AFTERNOON... BECOMING STEADIER AND HEAVIER...THEN DECREASING SUNDAY MORNING TO EARLY AFTERNOON. FREEZING RAIN MAY MIX INTO SOME THE SHELTERED VALLEYS SATURDAY AFTERNOON AND SATURDAY NIGHT THROUGH SUNDAY MORNING. * IMPACTS...EXPECT WINTER DRIVING CONDITIONS AS SNOW DEVELOPS MAKING ROADWAYS SLICK. SNOW WILL ALSO REDUCE VISIBILITY TO A MILE OR LESS. * SNOW LEVEL...VALLEY FLOORS...EXCEPT RISING TO BETWEEN 1500 TO 2000 FEET OVER THE WENATCHEE AND ENTIAT RIVER VALLEYS SATURDAY AFTERNOON. * WEB PAGE: FOR A DETAILED VIEW OF THE HAZARD AREA VISIT HTTP://WWW.WRH.NOAA.GOV/MAP/?WFO=OTX. 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. && $$ WAZ038-060300- /O.CON.KOTX.WS.W.0003.000000T0000Z-151207T0000Z/ OKANOGAN HIGHLANDS- INCLUDING THE FOLLOWING LOCATIONS...REPUBLIC...WAUCONDA... CHESAW ROAD...HIGHWAY 20 WAUCONDA SUMMIT...BOULDER CREEK ROAD... SHERMAN PASS 1050 AM PST SAT DEC 5 2015 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 PM PST SUNDAY... * LOCATIONS...REPUBLIC...WAUCONDA...CHESAW ROAD...HIGHWAY 20 WAUCONDA SUMMIT...BOULDER CREEK ROAD...SHERMAN PASS. * SNOW ACCUMULATIONS...5 TO 12 INCHES. * TIMING...LIGHT SNOW DEVELOPING LATE SATURDAY MORNING TO EARLY AFTERNOON...INCREASING IN INTENSITY...THEN DECREASING SUNDAY AFTERNOON. * IMPACTS...EXPECT WINTER DRIVING CONDITIONS AS SNOW DEVELOPS MAKING ROADWAYS SLICK. SNOW WILL ALSO REDUCE VISIBILITY TO A MILE OR LESS. * SNOW LEVEL...VALLEY FLOORS. * WEB PAGE: FOR A DETAILED VIEW OF THE HAZARD AREA VISIT HTTP://WWW.WRH.NOAA.GOV/MAP/?WFO=OTX. 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. && $$ WAZ041-043-044-060300- /O.CON.KOTX.WW.Y.0017.000000T0000Z-151206T1800Z/ WENATCHEE AREA-OKANOGAN VALLEY-WATERVILLE PLATEAU- INCLUDING THE FOLLOWING LOCATIONS...DISAUTEL PASS...WATERVILLE... BADGER MOUNTAIN ROAD 1050 AM PST SAT DEC 5 2015 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST SUNDAY ABOVE 1500 FEET... * LOCATIONS...DISAUTEL PASS...WATERVILLE...BADGER MOUNTAIN ROAD. * SNOW ACCUMULATIONS...2 TO 5 INCHES ABOVE 1500 FEET...WITH ISOLATED AMOUNTS UP TO 8 INCHES ABOVE 2500 FEET. UP TO 1 INCH OF ACCUMULATION BELOW 1500 FEET. * ICE ACCUMULATIONS...TRACE TO LESS THAN 0.05 INCHES. * TIMING...LIGHT SNOW DEVELOPING LATE SATURDAY MORNING INTO SATURDAY AFTERNOON...BECOMING MODERATE TO HEAVY AT TIMES THROUGH SUNDAY MORNING. SNOW MAY MIX WITH RAIN OR FREEZING RAIN IN THE AFTERNOON AND EVENING HOURS SATURDAY. PRECIPITATION DECREASING SUNDAY MORNING. * IMPACTS...EXPECT WINTER DRIVING CONDITIONS AS SNOW DEVELOPS MAKING ROADWAYS SLICK. SNOW WILL ALSO REDUCE VISIBILITY TO A MILE OR LESS. * HAZARD ELEVATION...ABOVE 1500 FEET. * SNOW LEVEL...RISING TO 2500 FEET. * WEB PAGE: FOR A DETAILED VIEW OF THE HAZARD AREA VISIT HTTP://WWW.WRH.NOAA.GOV/MAP/?WFO=OTX. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$
535 WWUS46 KOTX 052239 WSWOTX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE SPOKANE WA 239 PM PST SAT DEC 5 2015 ...MODERATE TO HEAVY SNOW SATURDAY NIGHT AND SUNDAY... .A PACIFIC STORM SYSTEM WILL AFFECT THE CASCADES AND NORTH CENTRAL MOUNTAINS THROUGH SUNDAY. PRECIPITATION WILL FALL MAINLY IN THE FORM OF SNOW FOR THE MOUNTAINS AND SHELTERED VALLEYS. SNOWFALL RATES ARE EXPECTED TO BE HEAVIEST THROUGH SATURDAY EVENING TO EARLY OVERNIGHT...THEN GRADUALLY DECREASING THROUGH SUNDAY. PRECIPITATION MAY MIX WITH...OR CHANGE TO... RAIN IN SOME OF THE LESS SHELTERED VALLEYS...HOLDING SNOW AMOUNTS DOWN. THERE IS ALSO SOME POTENTIAL FOR FREEZING RAIN TO BE MIXED IN SOME OF THE VALLEYS NEAR THE CASCADES. ONLY LIGHT ICE ACCUMULATIONS ARE EXPECTED BUT ANY ICE CAN CAUSE IMPACTS. WAZ042-060800- /O.CON.KOTX.WS.W.0003.000000T0000Z-151206T1800Z/ EAST SLOPES NORTHERN CASCADES- INCLUDING THE FOLLOWING LOCATIONS...LEAVENWORTH...MAZAMA... TWISP...WINTHROP...STEHEKIN...CONCONULLY...BLEWETT PASS... LOUP LOUP PASS 239 PM PST SAT DEC 5 2015 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM PST SUNDAY... * LOCATIONS...LEAVENWORTH...MAZAMA...TWISP...WINTHROP... STEHEKIN...CONCONULLY...BLEWETT PASS...LOUP LOUP PASS. * SNOW ACCUMULATIONS...IN THE VALLEYS 5 TO 10 INCHES WITH LOCAL AMOUNTS UP TO 15 INCHES...IN THE MOUNTAINS 15 TO 25 INCHES. LOCALLY LOWER AMOUNTS OF ONLY 1 TO 3 INCHES IN THE WENATCHEE AND ENTIAT RIVER VALLEYS. * ICE ACCUMULATIONS...AROUND A TRACE TO 0.05 INCHES * TIMING...SNOW WILL CONTINUE SATURDAY NIGHT...WITH SOME OF THE HIGHER ACCUMULATIONS RATES EXPECTED IN THE EVENING TO EARLY OVERNIGHT HOURS. SNOW IS EXPECTED TO DECREASING SUNDAY MORNING TO EARLY AFTERNOON. FREEZING RAIN MAY MIX INTO SOME THE SHELTERED VALLEYS THROUGH SUNDAY MORNING. * IMPACTS...EXPECT WINTER DRIVING CONDITIONS AS SNOW DEVELOPS MAKING ROADWAYS SLICK. SNOW WILL ALSO REDUCE VISIBILITY TO A MILE OR LESS. * SNOW LEVEL...VALLEY FLOORS...EXCEPT RISING TO BETWEEN 1500 TO 2000 FEET OVER THE LOWER WENATCHEE AND ENTIAT RIVER VALLEYS. * WEB PAGE: FOR A DETAILED VIEW OF THE HAZARD AREA VISIT HTTP://WWW.WRH.NOAA.GOV/MAP/?WFO=OTX. 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. && $$ WAZ038-060800- /O.CON.KOTX.WS.W.0003.000000T0000Z-151207T0000Z/ OKANOGAN HIGHLANDS- INCLUDING THE FOLLOWING LOCATIONS...REPUBLIC...WAUCONDA... CHESAW ROAD...HIGHWAY 20 WAUCONDA SUMMIT...BOULDER CREEK ROAD... SHERMAN PASS 239 PM PST SAT DEC 5 2015 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 PM PST SUNDAY... * LOCATIONS...REPUBLIC...WAUCONDA...CHESAW ROAD...HIGHWAY 20 WAUCONDA SUMMIT...BOULDER CREEK ROAD...SHERMAN PASS. * SNOW ACCUMULATIONS...3 TO 6 INCHES...WITH LOCAL AMOUNTS UP TO 1O INCHES IN THE MOUNTAINS TERRAIN. * TIMING...LIGHT SNOW INCREASING SATURDAY AFTERNOON AND EVENING...THEN DECREASING SUNDAY AFTERNOON. * IMPACTS...EXPECT WINTER DRIVING CONDITIONS AS SNOW DEVELOPS MAKING ROADWAYS SLICK. SNOW WILL ALSO REDUCE VISIBILITY TO A MILE OR LESS. * WEB PAGE: FOR A DETAILED VIEW OF THE HAZARD AREA VISIT HTTP://WWW.WRH.NOAA.GOV/MAP/?WFO=OTX. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SIGNIFICANT AMOUNTS OF SNOW ARE EXPECTED OR OCCURRING. SNOW ACCUMULATIONS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ WAZ041-043-044-060800- /O.CON.KOTX.WW.Y.0017.000000T0000Z-151206T1800Z/ WENATCHEE AREA-OKANOGAN VALLEY-WATERVILLE PLATEAU- INCLUDING THE FOLLOWING LOCATIONS...DISAUTEL PASS...WATERVILLE... BADGER MOUNTAIN ROAD 239 PM PST SAT DEC 5 2015 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST SUNDAY ABOVE 1500 FEET... * LOCATIONS...DISAUTEL PASS...WATERVILLE...BADGER MOUNTAIN ROAD. * SNOW ACCUMULATIONS...2 TO 5 INCHES ABOVE 1500 FEET...WITH ISOLATED AMOUNTS UP TO 8 INCHES ABOVE 2500 FEET. UP TO 1 INCH OF ACCUMULATION BELOW 1500 FEET. * ICE ACCUMULATIONS...TRACE TO LESS THAN 0.05 INCHES. * TIMING...LIGHT TO MODERATE SNOW SATURDAY AFTERNOON...MODERATE TO HEAVY AT TIMES THROUGH THE EVENING AND EARLY OVERNIGHT. SNOW MAY MIX WITH RAIN OR FREEZING RAIN THROUGH SUNDAY MORNING. PRECIPITATION DECREASING SUNDAY MORNING. * IMPACTS...EXPECT WINTER DRIVING CONDITIONS AS SNOW DEVELOPS MAKING ROADWAYS SLICK. SNOW WILL ALSO REDUCE VISIBILITY TO A MILE OR LESS. * WEB PAGE: FOR A DETAILED VIEW OF THE HAZARD AREA VISIT HTTP://WWW.WRH.NOAA.GOV/MAP/?WFO=OTX. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$
014 WWUS46 KOTX 060423 WSWOTX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE SPOKANE WA 823 PM PST SAT DEC 5 2015 ...MODERATE TO HEAVY SNOW SATURDAY NIGHT AND SUNDAY... .A PACIFIC STORM SYSTEM WILL AFFECT THE CASCADES AND NORTH CENTRAL MOUNTAINS THROUGH SUNDAY. PRECIPITATION WILL FALL MAINLY IN THE FORM OF SNOW FOR THE MOUNTAINS AND SHELTERED VALLEYS. SNOWFALL RATES ARE EXPECTED TO BE HEAVIEST THROUGH SATURDAY EVENING TO EARLY OVERNIGHT...THEN GRADUALLY DECREASE THROUGH SUNDAY. PRECIPITATION MAY MIX WITH...OR CHANGE TO...RAIN IN SOME OF THE LESS SHELTERED VALLEYS...HOLDING SNOW AMOUNTS DOWN. THERE IS ALSO SOME POTENTIAL FOR FREEZING RAIN TO BE MIXED IN SOME OF THE VALLEYS NEAR THE CASCADES. ONLY LIGHT ICE ACCUMULATIONS ARE EXPECTED BUT ANY ICE CAN CAUSE IMPACTS. WAZ042-061500- /O.CON.KOTX.WS.W.0003.000000T0000Z-151206T1800Z/ EAST SLOPES NORTHERN CASCADES- INCLUDING THE FOLLOWING LOCATIONS...LEAVENWORTH...MAZAMA... TWISP...WINTHROP...STEHEKIN...CONCONULLY...BLEWETT PASS... LOUP LOUP PASS 823 PM PST SAT DEC 5 2015 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM PST SUNDAY... * LOCATIONS...LEAVENWORTH...MAZAMA...TWISP...WINTHROP... STEHEKIN...CONCONULLY...BLEWETT PASS...LOUP LOUP PASS. * SNOW ACCUMULATIONS...AN ADDITIONAL 2 TO 10 INCHES. STORM TOTAL SNOWFALL...IN THE VALLEYS 5 TO 10 INCHES WITH LOCAL AMOUNTS UP TO 15 INCHES...IN THE MOUNTAINS 15 TO 25 INCHES. LOCALLY LOWER AMOUNTS OF ONLY 1 TO 3 INCHES IN THE WENATCHEE AND ENTIAT RIVER VALLEYS. * ICE ACCUMULATIONS...AROUND AN ADDITIONAL A TRACE . * TIMING...SNOW WILL CONTINUE SATURDAY NIGHT...WITH SOME OF THE HIGHER ACCUMULATIONS RATES EXPECTED IN THE EVENING TO EARLY OVERNIGHT HOURS. SNOW IS EXPECTED TO DECREASING SUNDAY MORNING TO EARLY AFTERNOON. FREEZING RAIN MAY MIX INTO SOME THE SHELTERED VALLEYS THROUGH SUNDAY MORNING. * IMPACTS...EXPECT WINTER DRIVING CONDITIONS AS SNOW DEVELOPS MAKING ROADWAYS SLICK. SNOW WILL ALSO REDUCE VISIBILITY TO A MILE OR LESS. * WEB PAGE: FOR A DETAILED VIEW OF THE HAZARD AREA VISIT HTTP://WWW.WRH.NOAA.GOV/MAP/?WFO=OTX. 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. && $$ WAZ038-061500- /O.CON.KOTX.WS.W.0003.000000T0000Z-151207T0000Z/ OKANOGAN HIGHLANDS- INCLUDING THE FOLLOWING LOCATIONS...REPUBLIC...WAUCONDA... CHESAW ROAD...HIGHWAY 20 WAUCONDA SUMMIT...BOULDER CREEK ROAD... SHERMAN PASS 823 PM PST SAT DEC 5 2015 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 PM PST SUNDAY... * LOCATIONS...REPUBLIC...WAUCONDA...CHESAW ROAD...HIGHWAY 20 WAUCONDA SUMMIT...BOULDER CREEK ROAD...SHERMAN PASS. * SNOW ACCUMULATIONS...AN ADDITIONAL 3 TO 7 INCHES...WITH LOCAL AMOUNTS UP TO 1O INCHES IN THE MOUNTAINS TERRAIN. * TIMING...LIGHT SNOW INCREASING SATURDAY EVENING...THEN DECREASING SUNDAY AFTERNOON. * IMPACTS...EXPECT WINTER DRIVING CONDITIONS AS SNOW DEVELOPS MAKING ROADWAYS SLICK. SNOW WILL ALSO REDUCE VISIBILITY TO A MILE OR LESS. * WEB PAGE: FOR A DETAILED VIEW OF THE HAZARD AREA VISIT HTTP://WWW.WRH.NOAA.GOV/MAP/?WFO=OTX. 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. && $$ WAZ041-043-044-061500- /O.CON.KOTX.WW.Y.0017.000000T0000Z-151206T1800Z/ WENATCHEE AREA-OKANOGAN VALLEY-WATERVILLE PLATEAU- INCLUDING THE FOLLOWING LOCATIONS...DISAUTEL PASS...WATERVILLE... BADGER MOUNTAIN ROAD 823 PM PST SAT DEC 5 2015 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST SUNDAY ABOVE 1500 FEET... * LOCATIONS...DISAUTEL PASS...WATERVILLE...MANSFIELD...BADGER MOUNTAIN ROAD. * SNOW ACCUMULATIONS...AN ADDITIONAL 1 TO 2 INCHES ABOVE 2000 FEET ON THE WATERVILLE PLATEAU. STORM TOTAL SNOWFALL WILL RANGE FROM 8 TO 12 INCHES ABOVE 2000 FEET ON THE WATERVILLE PLATEAU...2 TO 5 INCHES FOR MID ELEVATIONS...AND UP TO AN INCH BELOW 1500 FEET. * ICE ACCUMULATIONS...AROUND AN ADDITIONAL A TRACE . * TIMING...LIGHT TO MODERATE SNOW AT TIMES THROUGH THE EVENING AND EARLY OVERNIGHT. SNOW MAY MIX WITH RAIN OR FREEZING RAIN THROUGH SUNDAY MORNING. PRECIPITATION DECREASING SUNDAY MORNING. * IMPACTS...EXPECT WINTER DRIVING CONDITIONS AS SNOW DEVELOPS MAKING ROADWAYS SLICK. SNOW WILL ALSO REDUCE VISIBILITY TO A MILE OR LESS. * WEB PAGE: FOR A DETAILED VIEW OF THE HAZARD AREA VISIT HTTP://WWW.WRH.NOAA.GOV/MAP/?WFO=OTX. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$
856 WWUS46 KOTX 061231 WSWOTX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE SPOKANE WA 431 AM PST SUN DEC 6 2015 ...MODERATE TO HEAVY SNOW SATURDAY NIGHT AND SUNDAY... .SNOW WILL GRADUALLY END OVER THE AREA THIS MORNING. HOWEVER MORE SNOW IS EXPECTED TO DEVELOP TONIGHT AND CONTINUE INTO MONDAY. WAZ042-061800- /O.CON.KOTX.WS.W.0003.000000T0000Z-151206T1800Z/ EAST SLOPES NORTHERN CASCADES- INCLUDING THE FOLLOWING LOCATIONS...LEAVENWORTH...MAZAMA... TWISP...WINTHROP...STEHEKIN...CONCONULLY...BLEWETT PASS... LOUP LOUP PASS 431 AM PST SUN DEC 6 2015 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM PST THIS MORNING... * LOCATIONS...LEAVENWORTH...MAZAMA...TWISP...WINTHROP... STEHEKIN...CONCONULLY...BLEWETT PASS...LOUP LOUP PASS. * SNOW ACCUMULATIONS...AN ADDITIONAL 1 TO 3 INCHES. * ICE ACCUMULATIONS...AROUND AN ADDITIONAL TRACE . * TIMING...SNOW WILL GRADUALLY TAPER OFF THIS MORNING. * IMPACTS...IN ADDITION TO POOR DRIVING CONDITIONS...THE HEAVY SNOW WILL CAUSE TREE DAMAGE WHICH COULD RESULT IN BLOCKED ROADS AND POWER OUTAGES. * WEB PAGE: FOR A DETAILED VIEW OF THE HAZARD AREA VISIT HTTP://WWW.WRH.NOAA.GOV/MAP/?WFO=OTX. 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. && $$ WAZ038-062045- /O.CON.KOTX.WS.W.0003.000000T0000Z-151207T0000Z/ OKANOGAN HIGHLANDS- INCLUDING THE FOLLOWING LOCATIONS...REPUBLIC...WAUCONDA... CHESAW ROAD...HIGHWAY 20 WAUCONDA SUMMIT...BOULDER CREEK ROAD... SHERMAN PASS 431 AM PST SUN DEC 6 2015 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 PM PST THIS AFTERNOON... * LOCATIONS...REPUBLIC...WAUCONDA...CHESAW ROAD...HIGHWAY 20 WAUCONDA SUMMIT...BOULDER CREEK ROAD...SHERMAN PASS. * SNOW ACCUMULATIONS...UP TO AN 1 TO 3 INCHES MAINLY IN THE MOUNTAINS. * TIMING...SNOW WILL GRADUALLY TAPER OFF THIS AFTERNOON. * IMPACTS...EXPECT WINTER DRIVING CONDITIONS AS SNOW DEVELOPS MAKING ROADWAYS SLICK. SNOW WILL ALSO REDUCE VISIBILITY TO A MILE OR LESS. * WEB PAGE: FOR A DETAILED VIEW OF THE HAZARD AREA VISIT HTTP://WWW.WRH.NOAA.GOV/MAP/?WFO=OTX. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SIGNIFICANT AMOUNTS OF SNOW ARE EXPECTED OR OCCURRING. SNOW ACCUMULATIONS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ WAZ041-043-044-061800- /O.CON.KOTX.WW.Y.0017.000000T0000Z-151206T1800Z/ WENATCHEE AREA-OKANOGAN VALLEY-WATERVILLE PLATEAU- INCLUDING THE FOLLOWING LOCATIONS...DISAUTEL PASS...WATERVILLE... BADGER MOUNTAIN ROAD 431 AM PST SUN DEC 6 2015 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST THIS MORNING ABOVE 1500 FEET... * LOCATIONS...DISAUTEL PASS...WATERVILLE...BADGER MOUNTAIN ROAD. THE CITIES ALONG THE HIGHWAY 97 CORRIDOR INCLUDING WENATCHEE... CHELAN...AND OMAK HAVE WARMED ABOVE FREEZING AND SHOULD SEE ONLY RAIN THIS MORNING. * SNOW ACCUMULATIONS...UP TO AN ADDITIONAL 1 INCH. * TIMING...RAIN AND SNOW WILL GRADUALLY TAPER OFF THIS MORNING. * IMPACTS...EXPECT WINTER DRIVING CONDITIONS AS SNOW DEVELOPS MAKING ROADWAYS SLICK. SNOW WILL ALSO REDUCE VISIBILITY TO A MILE OR LESS. * WEB PAGE: FOR A DETAILED VIEW OF THE HAZARD AREA VISIT HTTP://WWW.WRH.NOAA.GOV/MAP/?WFO=OTX. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$
232 WWUS46 KOTX 061804 WSWOTX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE SPOKANE WA 1004 AM PST SUN DEC 6 2015 WAZ038-061915- /O.CAN.KOTX.WS.W.0003.000000T0000Z-151207T0000Z/ OKANOGAN HIGHLANDS- 1004 AM PST SUN DEC 6 2015 ...WINTER STORM WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN SPOKANE HAS CANCELLED THE WINTER STORM WARNING. THE THREAT OF SIGNIFICANT SNOW IS ENDING. PRECIPITATION RATES WILL CONTINUE TO DECREASE THROUGH THIS AFTERNOON AND IN SOME PLACES TEMPERATURES ARE RISING ABOVE FREEZING...LEAVING THE MAIN THREAT OF ADDITIONAL SNOW ACCUMULATIONS EARLY THIS AFTERNOON IN THE MOUNTAINS AND NEAR THE CANADIAN BORDER. $$ WAZ042-061915- /O.EXP.KOTX.WS.W.0003.000000T0000Z-151206T1800Z/ EAST SLOPES NORTHERN CASCADES- 1004 AM PST SUN DEC 6 2015 ...WINTER STORM WARNING HAS EXPIRED... THE THREAT OF SIGNIFICANT SNOW IS ENDING. PRECIPITATION RATES ARE DECREASING AND IN SOME PLACES TEMPERATURES ARE RISING ABOVE FREEZING...ALLOWING FOR A MIXTURE OF RAIN AND SNOW SHOWERS. THUS THE WARNING HAS BEEN ALLOWED TO EXPIRE. $$ WAZ041-043-044-061915- /O.EXP.KOTX.WW.Y.0017.000000T0000Z-151206T1800Z/ WENATCHEE AREA-OKANOGAN VALLEY-WATERVILLE PLATEAU- 1004 AM PST SUN DEC 6 2015 ...WINTER WEATHER ADVISORY HAS EXPIRED... THE THREAT OF SIGNIFICANT SNOW IS ENDING. PRECIPITATION RATES ARE DECREASING AND IN SOME PLACES TEMPERATURES ARE RISING ABOVE FREEZING...ALLOWING FOR A MIXTURE OF RAIN AND SNOW SHOWERS. THUS THE WARNING HAS BEEN ALLOWED TO EXPIRE. $$
What forecasters said that day
The local office's own words before this winter storm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Spokane, WA wrote its last area forecast discussion before this winter storm warning went out at Dec 4, 2:50 PM PST, 15 minutes earlier.
Area forecast discussion, Dec 4, 2:50 PM PST, 15 minutes before
Area Forecast Discussion
National Weather Service Spokane WA
250 PM PST FRI DEC 4 2015
.SYNOPSIS...
Moderate to heavy snow is expected Saturday into Sunday over
portions of north central Washington, including the Methow Valley
and Okanogan Highlands. The remainder of the region will
experience low elevation rain and mountain snow this weekend. A
wet and breezy weather pattern will continue into next week with
mild temperatures and several chances for rain.
&&
.DISCUSSION...
Tonight: Cold conditionally unstable air-mass contained in a trof
of low pressure keeping a varying degree of snow shower activity
over the area moves to the east overnight and is replaced with a
ridge of high pressure in its wake. This allows for gradual
decrease in pops from west to east overnight with the North Idaho
Panhandle holding onto the highest pops overnight yet still they
are still showing a decrease in comparison to earlier today.
Southerly winds remain and with abundant low level moisture from
recent precipitation more fog and low clouds remain in the
forecast for tonight. The warm southerly trajectory of the wind
tonight with the ridge moving in place along with expected
abundant sky coverage allow for tonight's forecast low
temperatures to remain on the warm side of climo. /Pelatti
...MODERATE TO HEAVY SNOW POTENTIAL FOR THE CASCADES...METHOW
VALLEY AND NORTHERN MOUNTAINS THIS WEEKEND...
Saturday and Sunday: the next significant system moves through.
The leading warm front and associated precipitation is projected
to start into the Cascades between early to late morning Saturday
and on toward the Okanogan Highlands between late morning to early
afternoon. This includes the Wenatchee Area, Okanogan Valley and
Waterville Plateau. This is where the best chances remain through
Saturday night, in low level the southeast flow. The eastern third
of WA and ID will also have some threat, but the best risk here
holds off until Sunday with the cold front. While the risk is
starting to peak in the east, it will begin to wane in the west
going into later Sunday morning and afternoon. The overall
precipitation risk wanes region-wide for Sunday evening. Yet this
will be very brief because the next system will already begin to
move in from the west overnight to increase the threat of
precipitation again.
In addition to the precipitation, the threat of fog will be found
across the valleys and central to northeast Columbia Basin
Saturday morning. The low level southeast and upslope flow could
bring some locally dense fog Saturday morning across portions of
the I-90 corridor between the West Plains of Spokane into the
central Columbia Basin and northward into the Okanogan Valley.
Patchy freezing drizzle could also be squeezed out in these areas
too. Areas such of the Palouse would be more apt to remain out of
this fog threat with the drier and slightly higher southeast
winds. In fact some of the southeastern CWA is apt to see some
sunshine.
* Precipitation-Type and Confidence: Confidence in snow levels and
the adjoining precipitation-type in some portions of the CWA is
only fair. This is especially so for the sheltered valleys near
the Cascades and the Okanogan Valley. The crux of the
uncertainty is over how effectively the cold air will be dammed
up against the Cascades and Okanogan Valley. Overall after going
through the temperature forecast and considering the forecast
soundings and the tendency for the Methow Valley (and similar
areas) to hold onto cold air, I kept snow levels below the model
guidance here. Model resolution is not good enough to resolve
complex terrain of the Cascades and appears to be washing out
the finer snow level details. The result: more snow than rain
over the Cascades, including some of the northern valleys. The
exception is toward the Wenatchee River Valley, around places
such as Leavenworth, where the milder air already in place
should keep the snow threat lower. Confidence in precipitation-
type across the Okanogan Valley may be the lowest of the region.
However, with all the above considerations, the main snow threat
appears to come during the morning and night hours with a
rain/snow mix in the afternoon.
Some of the more high-resolution models also show some milder
air nosing in aloft across southern Chelan through Douglas and
lower Okanogan county, with surface temperatures lingering
within a few degrees of freezing. So some threat of freezing
rain is in the forecast here for Saturday afternoon into Sunday
morning too. Confidence in freezing rain is low.
As for the remainder of the CWA snow levels rise to between 2500
and 4000 feet through Saturday afternoon and evening and by Sunday
they generally rise to between 3500 to 5000 feet, highest toward
the deeper Columbia Basin and L-C valley southward and lowest over
the northern WA and ID Panhandle mountains.
* Precipitation-amounts: between Saturday and Sunday models
depict between 0.50 to 1.0 inches of liquid precipitation across
the west and northern CWA, with local amounts up to 2 inches in
the Cascades. Where this falls as snow expect some moderate to
heavy accumulations. Across the south and eastern CWA
precipitation amounts average between 0.10 to 0.50 inches, with
the highest over the northeast WA and north ID Panhandle
mountains and lowest toward the L-C Valley and Camas Prairie.
* Highlights: Winter storm warnings are being issued for the
Cascades (excluding portions of the Wenatchee and Entiat River
Valley) for Saturday morning through Sunday morning. Winter
storm warnings are also being issued for the Okanogan Highlands,
largely for areas north of Keller and going up in elevation west
of Stevens/Ferry county border for Saturday afternoon through
Sunday. Winter weather advisories are being issued above 1500
feet for the Wenatchee, Waterville Plateau and Okanogan Valley
zones from late morning Saturday through Sunday morning. Should
the colder air become more entrenched and the snow is more
intense or persistent, it is possible some portions of this
advisory may need to be upgraded to warning. Elsewhere we will
hold off on issuing any highlights for the northeast WA/north ID
mountain zones. While some snow is expected in the valleys
Saturday night and Sunday morning, the better threat of
significant snow develops through the day Sunday when snow
levels are on the rise. Yet again we will have to monitor this
should colder air become more difficult to scour out and snow
becomes more intense or persistent.
* Impacts: With any winter precipitation there will be the
potential for adverse impacts to travel, including slick and/or
impassable roads. Any potential freezing drizzle Saturday
morning, no matter how light, may also cause some slick spots on
roads.
* Bust potential: there are a couple ways the weather could diverge
from current forecast thinking in large ways. First, if milder
air gets into some of the sheltered valleys there could be much
more rain than snow and snow amounts could be orders of
magnitude less than what is in the forecast. Second, on the
other side, if the colder air holds on in some of sheltered
valleys, particularly the Okanogan Valley, there could be
several more inches of snow than what is currently forecast. /J.
Cote'
Monday through Friday: The upcoming work week looks as if it will
feature at least 2 mild and wet storm systems...one on Monday and
another potentially more prolonged event in the Tuesday night
through Thursday time frame. Our primary concern with the upcoming
mild and wet pattern will be the potential for heavy rain combined
with mountain snow melt. At this time, the ECMWF, GFS and Canadian
models are progressive enough with Monday's system that it will
probably not be prolonged enough to produce the precipitation
needed for significant rises on area streams. However, if the
moist frontal system Tuesday night into Thursday sets up over
Washington for 36 hours or more of moderate to heavy rain, we may
have issues on some of our rivers along the East Slopes of the
Cascades and streams in the Idaho Panhandle. We will also have a
good chance of a couple breezy to windy events next week. South
winds on Monday gusting in the 30 to 40 mph range look probable at
this time for the Palouse, West Plains, and portions of the
Columbia Basin. Wednesday and Thursday also have the potential to
be windy as well, but timing differences between the models make
it difficult to pin that down at this time. /GKoch
&&
.AVIATION...
18Z TAFS: Minor small and weak disturbances rotating around and
behind a very slow exiting trof of low pressure over the aviation
area will keep some minor shower activity going, mostly in the
form of spotty light snow showers. The airmass below is very moist
from earlier precipitation so fog and low clouds will continue to
be problematic in the aviation area. Since this is not a typical
high pressure ridge stagnant fog and low clouds setup but rather
fog and low clouds under a cluttered trof with light showers in it
the confidence in forecasting the appearance and exit of both fog
and low clouds is low. /Pelatti
&&
.PRELIMINARY POINT TEMPS/POPS...
Spokane 30 39 34 40 36 44 / 30 20 30 70 60 80
Coeur d'Alene 31 39 34 40 36 43 / 40 10 20 70 60 90
Pullman 30 41 36 41 37 45 / 20 10 20 70 30 80
Lewiston 31 44 38 46 39 49 / 20 10 10 70 30 80
Colville 33 37 32 38 36 42 / 30 50 70 80 70 90
Sandpoint 32 38 31 38 35 41 / 50 30 30 70 60 90
Kellogg 29 35 31 37 34 39 / 50 20 20 80 60 90
Moses Lake 29 39 35 42 38 47 / 10 50 80 70 50 70
Wenatchee 29 35 32 39 35 41 / 10 70 90 60 60 70
Omak 30 35 33 37 36 41 / 10 80 100 80 70 80
&&
.OTX WATCHES/WARNINGS/ADVISORIES...
ID...None.
WA...Winter Weather Advisory from 10 AM Saturday to 10 AM PST Sunday
for Okanogan Valley-Waterville Plateau-Wenatchee Area.
Winter Storm Warning from 7 AM Saturday to 10 AM PST Sunday for
East Slopes Northern Cascades.
Winter Storm Warning from 10 AM Saturday to 4 PM PST Sunday for
Okanogan Highlands.
&&Hazardous weather outlook, Dec 4, 6:37 AM PST, 8 hours 28 minutes before
Hazardous Weather Outlook National Weather Service SPOKANE WA 637 AM PST FRI DEC 4 2015 WAZ038-041>044-051445- OKANOGAN HIGHLANDS-WENATCHEE AREA-EAST SLOPES NORTHERN CASCADES- OKANOGAN VALLEY-WATERVILLE PLATEAU- 637 AM PST FRI DEC 4 2015 This Hazardous Weather Outlook is for portions of Central Washington and North Central Washington. .DAY ONE...TODAY AND TONIGHT Snow showers will fall along the Cascade Crest today bringing the potential for an additional 1 to 3 inches. Mountain passes may be slick and snow covered at times. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY There is moderate to high confidence for another heavy snow event in the North Cascades possibly extending into the Okanogan Highlands. Light to moderate snow is possible in the lower elevations stretching along the Highway 97 corridor between Oroville and Wenatchee and Waterville Plateau however confidence is much lower due to uncertainty with exact snow levels and precipitation type. A mild and very moist jet stream will be aimed into the Pacific Northwest through much of next week bringing the potential for heavy wet mountain snow...moderate valley rain...gusty winds and mild temperatures. The chance for river rises and rock slides will be increasing by the end of next week. IDZ001>004-026-027-WAZ031>037-051445- 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- 636 AM PST FRI DEC 4 2015 This Hazardous Weather Outlook is for portions of North Idaho... North Central Idaho...East Central Washington...Northeast Washington and Southeast Washington. .DAY ONE...TODAY AND TONIGHT No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY A mild and very moist jet stream will be aimed into the Pacific Northwest through much of next week bringing the potential for heavy wet mountain snow...moderate valley rain...gusty winds and mild temperatures. The chance for river rises and rock slides will be increasing by the end of next week.
The office that day
Everything else NWS Spokane, WA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 4, 3:05 PM PST | Winter Weather Advisory | OTX | Chelan, Douglas, Grant, Okanogan | 43 hr |
Nearby
Winter Storm Warnings in Washington, 2015Every winter storm warning in 2015
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.