Alert archive / Washington / Winter Storm Warnings in 2007
Winter Storm Warning 5, NWS Spokane, WA
NWS Spokane, WA issued this winter storm warning at Oct 18, 2007, 4:55 AM PDT for Bonner County, Boundary County, Kootenai County, Idaho; 5 counties in Washington. It took effect at Oct 18, 2007, 6:00 AM PDT. It was in force for 26 hr. 5 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
- Oct 18, 2007, 4:55 AM PDT (11:55 UTC)
- In effect from
- Oct 18, 2007, 6:00 AM PDT
- Expired
- Oct 19, 2007, 8:16 AM PDT
- In force
- 26 hr
- Issued by
- NWS Spokane, WA
Counties Bonner County, ID, Boundary County, ID, Kootenai County, ID, Ferry County, WA, Okanogan County, WA, Pend Oreille County, WA, Spokane County, WA, Stevens County, WA
The radar
The Spokane radar (KOTX), 68 km from the middle of the area, began a volume at 11:56 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 |
|---|---|---|---|
| Oct 18, 7:00 PM PDT | HEAVY SNOW 5 | 6 Nw Sandpoint, ID | SNOTEL AT SCHWEITZER BUTTE |
| Oct 18, 7:00 PM PDT | HEAVY SNOW 5 | 8 Nw Conconully, WA | SNOTEL AT SALMON MEADOWS |
| Oct 19, 7:00 AM PDT | SNOW 4.4 | 5 Wsw Colburn, ID | SCHWEITZER BASIN RAWS ELEV 6090 FT |
| Oct 19, 7:00 AM PDT | SNOW 6 | 12 Nw Mazama, WA | REPORT FROM HARTS PASS AT 6198 FT |
| Oct 19, 7:00 AM PDT | SNOW 6 | 8 Nnw Conconully, WA | SALMON MEADOWS RAWS ELEV 4500 FT |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Spokane, WA (KOTX), launched 00:00Z, 11.9 hours before the alert went out and 109 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
- 57 J/kg
- Mixed-layer CIN
- -3 J/kg
- Mixed-layer LCL
- 880 m above ground
- 0-6 km bulk shear
- 5 kt
- 0-1 km storm-relative helicity
- 34 m²/s²
- 0-3 km storm-relative helicity
- 53 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WWUS46 KOTX 181155 WSWOTX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE SPOKANE WA 455 AM PDT THU OCT 18 2007 ...TWO STRONG STORMS TO BRING MOUNTAIN SNOWS AND STRONG WINDS BOTH TODAY AND FRIDAY... A PAIR OF STRONG EARLY SEASON STORMS WILL BRING TWO ROUNDS OF WINTRY WEATHER TO THE MOUNTAINS OF NORTH WASHINGTON AND NORTH IDAHO. THE FIRST STORM WILL ARRIVE THIS MORNING. A SECOND VIGOROUS STORM WILL TAKE A SIMILAR TRACK ON FRIDAY. THIS WILL BE THE FIRST SIGNIFICANT BOUT OF HEAVY SNOW COMBINED WITH STRONG WINDS FOR MANY LOCATIONS THIS SEASON. WAZ038-190000- /O.CAN.KOTX.HS.W.0008.071018T1500Z-071019T2200Z/ /O.NEW.KOTX.WS.W.0005.071018T1500Z-071019T2200Z/ OKANOGAN HIGHLANDS- INCLUDING THE CITIES OF...REPUBLIC...INCHELIUM 455 AM PDT THU OCT 18 2007 ...WINTER STORM WARNING IN EFFECT FROM 8 AM THIS MORNING TO 3 PM PDT FRIDAY ABOVE 5000 FEET... ...HEAVY SNOW WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN SPOKANE HAS ISSUED A WINTER STORM WARNING ABOVE 5000 FEET...WHICH IS IN EFFECT FROM 8 AM THIS MORNING TO 3 PM PDT FRIDAY. THE HEAVY SNOW WARNING HAS BEEN CANCELLED. HEAVY EARLY SEASON SNOWS ARE LIKELY TODAY AND AGAIN ON FRIDAY AS A PAIR OF POTENT STORMS MOVE THROUGH THE REGION. SNOW WILL DEVELOP THIS MORNING AROUND 3500 FEET...BEFORE CLIMBING TO 5000 FEET DURING THE AFTERNOON. ACCUMULATIONS OF 2 TO 4 INCHES ARE LIKELY IN THE MOUNTAINS ABOVE 5000 FEET WITH LOCALLY HEAVIER AMOUNTS POSSIBLE THROUGH EARLY THIS EVENING. SOUTHEAST WINDS OF 25-35 MPH IN THE MOUNTAINS WILL ALSO PRODUCE AREAS OF BLOWING SNOW. AFTER A BRIEF BREAK IN THE ACTION...ANOTHER STORM WILL ARRIVE FRIDAY MORNING...WITH AN ADDITIONAL 2 TO 4 INCHES OF SNOW POSSIBLE IN THE MOUNTAINS ABOVE 5000 FEET. SNOW AT THE FORECAST ELEVATIONS WILL AFFECT SHERMAN PASS ALONG HIGHWAY 20. ALSO PEOPLE WITH RECREATION INTERESTS IN THE HIGHER MOUNTAINS SHOULD PAY CLOSE ATTENTION TO THE CHANGING WEATHER. 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. $$ WAZ037-190000- /O.CAN.KOTX.HS.W.0008.071018T1600Z-071020T0500Z/ /O.NEW.KOTX.WS.W.0005.071018T1600Z-071020T0500Z/ NORTHEAST MOUNTAINS- INCLUDING THE CITIES OF...COLVILLE...DEER PARK...CHEWELAH... NEWPORT...KETTLE FALLS 455 AM PDT THU OCT 18 2007 ...WINTER STORM WARNING IN EFFECT FROM 9 AM THIS MORNING TO 10 PM PDT FRIDAY ABOVE 5000 FEET... ...HEAVY SNOW WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN SPOKANE HAS ISSUED A WINTER STORM WARNING ABOVE 5000 FEET...WHICH IS IN EFFECT FROM 9 AM THIS MORNING TO 10 PM PDT FRIDAY. THE HEAVY SNOW WARNING HAS BEEN CANCELLED. HEAVY EARLY SEASON SNOWS ARE LIKELY TODAY AND AGAIN ON FRIDAY AS A PAIR OF POTENT STORMS MOVE THROUGH THE REGION. SNOW WILL DEVELOP THIS MORNING AROUND 4000 FEET...BEFORE CLIMBING TO 5000 FEET DURING THE AFTERNOON. ACCUMULATIONS OF 2 TO 4 INCHES ARE LIKELY IN THE MOUNTAINS ABOVE 5000 FEET WITH LOCALLY HEAVIER AMOUNTS POSSIBLE THROUGH EARLY THIS EVENING. SOUTHEAST WINDS OF 25-35 MPH IN THE MOUNTAINS WILL ALSO PRODUCE AREAS OF BLOWING SNOW. AFTER A BRIEF BREAK IN THE ACTION...ANOTHER STORM WILL ARRIVE FRIDAY MORNING...WITH AN ADDITIONAL 2 TO 4 INCHES OF SNOW POSSIBLE IN THE MOUNTAINS ABOVE 5000 FEET. SNOW AT THE FORECAST ELEVATIONS WILL OCCUR ABOVE ALL MAJOR PASS LEVELS...HOWEVER IT WILL IMPACT PERSONS WITH RECREATION INTERESTS IN THE HIGHER MOUNTAINS. A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. $$ IDZ001-190000- /O.CAN.KOTX.HS.W.0008.071018T1800Z-071020T0500Z/ /O.NEW.KOTX.WS.W.0005.071018T1800Z-071020T0500Z/ NORTHERN PANHANDLE- INCLUDING THE CITIES OF...SANDPOINT...RATHDRUM...BONNERS FERRY... PRIEST RIVER 455 AM PDT THU OCT 18 2007 ...WINTER STORM WARNING IN EFFECT FROM 11 AM THIS MORNING TO 10 PM PDT FRIDAY ABOVE 5000 FEET... ...HEAVY SNOW WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN SPOKANE HAS ISSUED A WINTER STORM WARNING ABOVE 5000 FEET...WHICH IS IN EFFECT FROM 11 AM THIS MORNING TO 10 PM PDT FRIDAY. THE HEAVY SNOW WARNING HAS BEEN CANCELLED. HEAVY EARLY SEASON SNOWS ARE LIKELY TODAY AND AGAIN ON FRIDAY AS A PAIR OF POTENT STORMS MOVE THROUGH THE REGION. SNOW WILL DEVELOP BY MIDDAY AROUND 4500 FEET...BEFORE CLIMBING TO 5000 FEET DURING THE AFTERNOON. ACCUMULATIONS OF 2 TO 4 INCHES ARE LIKELY IN THE MOUNTAINS ABOVE 5000 FEET WITH LOCALLY HEAVIER AMOUNTS POSSIBLE THROUGH EARLY THIS EVENING. SOUTHEAST WINDS OF 25-35 MPH IN THE MOUNTAINS WILL ALSO PRODUCE AREAS OF BLOWING SNOW. AFTER A BRIEF BREAK IN THE ACTION...ANOTHER STORM WILL ARRIVE FRIDAY MORNING...WITH AN ADDITIONAL 2 TO 4 INCHES OF SNOW POSSIBLE IN THE MOUNTAINS ABOVE 5000 FEET. SNOW AT THE FORECAST ELEVATIONS WILL OCCUR ABOVE ALL MAJOR PASS LEVELS...HOWEVER IT WILL IMPACT PERSONS WITH RECREATION INTERESTS IN THE HIGHER MOUNTAINS. A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. $$ WAZ042-190000- /O.UPG.KOTX.SN.Y.0018.071018T1300Z-071019T0100Z/ /O.NEW.KOTX.WS.W.0005.071018T1300Z-071019T2200Z/ EAST SLOPES NORTHERN CASCADES- INCLUDING THE CITIES OF...LEAVENWORTH...MAZAMA...TWISP...WINTHROP 455 AM PDT THU OCT 18 2007 ...WINTER STORM WARNING IN EFFECT FROM 6 AM THIS MORNING TO 3 PM PDT FRIDAY ABOVE 3000 FEET... ...SNOW ADVISORY NO LONGER IN EFFECT... THE NATIONAL WEATHER SERVICE IN SPOKANE HAS ISSUED A WINTER STORM WARNING ABOVE 3000 FEET...WHICH IS IN EFFECT FROM 6 AM THIS MORNING TO 3 PM PDT FRIDAY. THE SNOW ADVISORY IS NO LONGER IN EFFECT. SNOW WILL DEVELOP IN THE MOUNTAINS OF THE EAST SLOPES OF THE NORTHERN CASCADES DURING THE MORNING. SNOW WILL OCCUR AT ALL ELEVATIONS...INCLUDING THE VALLEYS...DURING THE ONSET OF THE EVENT...HOWEVER THE WILL SLOWLY RISE THROUGH THE DAY...REACHING 3000 FEET BY LATE AFTERNOON. MINOR SNOW ACCUMULATIONS ARE POSSIBLE THIS MORNING IN THE VALLEYS...INCLUDING LOCATIONS NEAR MAZAMA...PLAIN...AND LUCERNE...BUT THE HEAVIEST AMOUNTS OF SNOW WILL OCCUR ABOVE 3000 FEET. LOCATIONS NEAR THE CASCADE CREST WILL RECEIVE ANYWHERE FROM 4 TO 8 INCHES OF NEW SNOW. ADDITIONALLY SOUTHEAST WINDS OF 20-30 MPH IN THE MOUNTAINS WILL PRODUCE AREAS OF BLOWING SNOW. THE SNOW WILL TAPER OFF DURING THE EVENING TO SCATTERED SNOW SHOWERS...BUT WILL RETURN BY EARLY FRIDAY MORNING WITH THE ARRIVAL OF THE NEXT STORM. THIS STORM WILL LIKELY DROP ANOTHER SEVERAL INCHES OF SNOW ACROSS THE MOUNTAINS...HOWEVER THE VALLEYS WILL SEE PRIMARILY RAIN. HAZARDOUS WINTER TRAVEL CONDITIONS ARE EXPECTED TO DEVELOP ALONG THE NORTH CASCADE HIGHWAY WEST OF MAZAMA THROUGH THE DAY...AS WELL AS LOCATIONS JUST EAST OF STAMPEDE AND STEVENS PASS. THE SNOWS WILL IMPACT PERSONS WITH RECREATION INTERESTS THROUGHOUT THIS PORTION OF THE CASCADES. A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. $$
6 follow-up statements
000 WWUS46 KOTX 181511 WSWOTX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE SPOKANE WA 811 AM PDT THU OCT 18 2007 ...TWO STRONG STORMS TO BRING MOUNTAIN SNOWS AND STRONG WINDS BOTH TODAY AND FRIDAY... A PAIR OF STRONG EARLY SEASON STORMS WILL BRING TWO ROUNDS OF WINTRY WEATHER TO THE MOUNTAINS OF NORTH WASHINGTON AND NORTH IDAHO. THE FIRST STORM WILL ARRIVE THIS MORNING. A SECOND VIGOROUS STORM WILL TAKE A SIMILAR TRACK ON FRIDAY. THIS WILL BE THE FIRST SIGNIFICANT BOUT OF HEAVY SNOW COMBINED WITH STRONG WINDS FOR MANY LOCATIONS THIS SEASON. WAZ042-182315- /O.CON.KOTX.WS.W.0005.000000T0000Z-071019T2200Z/ EAST SLOPES NORTHERN CASCADES- INCLUDING THE CITIES OF...LEAVENWORTH...MAZAMA...TWISP...WINTHROP 811 AM PDT THU OCT 18 2007 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 3 PM PDT FRIDAY ABOVE 3000 FEET... A WINTER STORM WARNING ABOVE 3000 FEET REMAINS IN EFFECT UNTIL 3 PM PDT FRIDAY. SNOW WILL DEVELOP IN THE MOUNTAINS OF THE EAST SLOPES OF THE NORTHERN CASCADES DURING THE MORNING. SNOW WILL OCCUR AT MOST ELEVATIONS...WITH A MIX OF RAIN AND SNOW IN THE LOWEST VALLEYS...DURING THE ONSET OF THE EVENT...HOWEVER SNOW LEVELS WILL SLOWLY RISE THROUGH THE DAY...REACHING 3000 FEET BY LATE AFTERNOON. MINOR SNOW ACCUMULATIONS ARE POSSIBLE THIS MORNING IN THE VALLEYS...INCLUDING LOCATIONS NEAR MAZAMA...PLAIN...AND LUCERNE...BUT THE HEAVIEST AMOUNTS OF SNOW WILL OCCUR ABOVE 3000 FEET. LOCATIONS NEAR THE CASCADE CREST WILL RECEIVE ANYWHERE FROM 4 TO 8 INCHES OF NEW SNOW. ADDITIONALLY SOUTHEAST WINDS OF 20-30 MPH IN THE MOUNTAINS WILL PRODUCE AREAS OF BLOWING SNOW. THE SNOW WILL TAPER OFF DURING THE EVENING TO SCATTERED SNOW SHOWERS...BUT WILL RETURN BY EARLY FRIDAY MORNING WITH THE ARRIVAL OF THE NEXT STORM. THIS STORM WILL LIKELY DROP ANOTHER SEVERAL INCHES OF SNOW ACROSS THE MOUNTAINS...HOWEVER THE VALLEYS WILL SEE PRIMARILY RAIN. HAZARDOUS WINTER TRAVEL CONDITIONS ARE EXPECTED TO DEVELOP ALONG THE NORTH CASCADE HIGHWAY WEST OF MAZAMA THROUGH THE DAY...AS WELL AS LOCATIONS JUST EAST OF STAMPEDE AND STEVENS PASS. THE SNOWS WILL IMPACT PERSONS WITH RECREATION INTERESTS THROUGHOUT THIS PORTION OF THE CASCADES. 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. $$ WAZ038-182315- /O.CON.KOTX.WS.W.0005.000000T0000Z-071019T2200Z/ OKANOGAN HIGHLANDS- INCLUDING THE CITIES OF...REPUBLIC...INCHELIUM 811 AM PDT THU OCT 18 2007 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 3 PM PDT FRIDAY ABOVE 5000 FEET... A WINTER STORM WARNING ABOVE 5000 FEET REMAINS IN EFFECT UNTIL 3 PM PDT FRIDAY. HEAVY EARLY SEASON SNOWS ARE LIKELY TODAY AND AGAIN ON FRIDAY AS A PAIR OF POTENT STORMS MOVE THROUGH THE REGION. SNOW WILL DEVELOP THIS MORNING AROUND 3500 FEET...BEFORE CLIMBING TO 5000 FEET DURING THE AFTERNOON. ACCUMULATIONS OF 2 TO 4 INCHES ARE LIKELY IN THE MOUNTAINS ABOVE 5000 FEET WITH LOCALLY HEAVIER AMOUNTS POSSIBLE THROUGH EARLY THIS EVENING. SOUTHEAST WINDS OF 25-35 MPH IN THE MOUNTAINS WILL ALSO PRODUCE AREAS OF BLOWING SNOW. AFTER A BRIEF BREAK IN THE ACTION...ANOTHER STORM WILL ARRIVE FRIDAY MORNING...WITH AN ADDITIONAL 2 TO 4 INCHES OF SNOW POSSIBLE IN THE MOUNTAINS ABOVE 5000 FEET. SNOW AT THE FORECAST ELEVATIONS WILL AFFECT SHERMAN PASS ALONG HIGHWAY 20. ALSO PEOPLE WITH RECREATION INTERESTS IN THE HIGHER MOUNTAINS SHOULD PAY CLOSE ATTENTION TO THE CHANGING WEATHER. A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. $$ WAZ037-182315- /O.CON.KOTX.WS.W.0005.071018T1600Z-071020T0500Z/ NORTHEAST MOUNTAINS- INCLUDING THE CITIES OF...COLVILLE...DEER PARK...CHEWELAH... NEWPORT...KETTLE FALLS 811 AM PDT THU OCT 18 2007 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 PM PDT FRIDAY ABOVE 5000 FEET... A WINTER STORM WARNING ABOVE 5000 FEET REMAINS IN EFFECT UNTIL 10 PM PDT FRIDAY. HEAVY EARLY SEASON SNOWS ARE LIKELY TODAY AND AGAIN ON FRIDAY AS A PAIR OF POTENT STORMS MOVE THROUGH THE REGION. SNOW WILL DEVELOP THIS MORNING AROUND 4000 FEET...BEFORE CLIMBING TO 5000 FEET DURING THE AFTERNOON. ACCUMULATIONS OF 2 TO 4 INCHES ARE LIKELY IN THE MOUNTAINS ABOVE 5000 FEET WITH LOCALLY HEAVIER AMOUNTS POSSIBLE THROUGH EARLY THIS EVENING. SOUTHEAST WINDS OF 25-35 MPH IN THE MOUNTAINS WILL ALSO PRODUCE AREAS OF BLOWING SNOW. AFTER A BRIEF BREAK IN THE ACTION...ANOTHER STORM WILL ARRIVE FRIDAY MORNING...WITH AN ADDITIONAL 2 TO 4 INCHES OF SNOW POSSIBLE IN THE MOUNTAINS ABOVE 5000 FEET. SNOW AT THE FORECAST ELEVATIONS WILL OCCUR ABOVE ALL MAJOR PASS LEVELS...HOWEVER IT WILL IMPACT PERSONS WITH RECREATION INTERESTS IN THE HIGHER MOUNTAINS. A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. $$ IDZ001-182315- /O.CON.KOTX.WS.W.0005.071018T1800Z-071020T0500Z/ NORTHERN PANHANDLE- INCLUDING THE CITIES OF...SANDPOINT...RATHDRUM...BONNERS FERRY... PRIEST RIVER 811 AM PDT THU OCT 18 2007 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 PM PDT FRIDAY ABOVE 5000 FEET... A WINTER STORM WARNING ABOVE 5000 FEET REMAINS IN EFFECT UNTIL 10 PM PDT FRIDAY. HEAVY EARLY SEASON SNOWS ARE LIKELY TODAY AND AGAIN ON FRIDAY AS A PAIR OF POTENT STORMS MOVE THROUGH THE REGION. SNOW WILL DEVELOP BY MIDDAY AROUND 4500 FEET...BEFORE CLIMBING TO 5000 FEET DURING THE AFTERNOON. ACCUMULATIONS OF 2 TO 4 INCHES ARE LIKELY IN THE MOUNTAINS ABOVE 5000 FEET WITH LOCALLY HEAVIER AMOUNTS POSSIBLE THROUGH EARLY THIS EVENING. SOUTHEAST WINDS OF 25-35 MPH IN THE MOUNTAINS WILL ALSO PRODUCE AREAS OF BLOWING SNOW. AFTER A BRIEF BREAK IN THE ACTION...ANOTHER STORM WILL ARRIVE FRIDAY MORNING...WITH AN ADDITIONAL 2 TO 4 INCHES OF SNOW POSSIBLE IN THE MOUNTAINS ABOVE 5000 FEET. SNOW AT THE FORECAST ELEVATIONS WILL OCCUR ABOVE ALL MAJOR PASS LEVELS...HOWEVER IT WILL IMPACT PERSONS WITH RECREATION INTERESTS IN THE HIGHER MOUNTAINS. A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. $$
000 WWUS46 KOTX 182156 WSWOTX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE SPOKANE WA 256 PM PDT THU OCT 18 2007 ...ONE STORM TO EXIT THE AREA TONIGHT FOLLOWED BY ANOTHER STORM FRIDAY... A PAIR OF STRONG EARLY SEASON STORMS WILL BRING TWO ROUNDS OF WINTRY WEATHER TO THE MOUNTAINS OF NORTH WASHINGTON AND NORTH IDAHO. THE FIRST STORM WILL EXIT THE AREA TONIGHT. A SECOND VIGOROUS STORM WILL TRACK CENTRAL WASHINGTON ON FRIDAY. THIS WILL BE THE FIRST SIGNIFICANT BOUT OF HEAVY SNOW COMBINED WITH STRONG WINDS FOR MANY LOCATIONS THIS SEASON. WAZ042-190600- /O.CON.KOTX.WS.W.0005.000000T0000Z-071019T2200Z/ EAST SLOPES NORTHERN CASCADES- INCLUDING THE CITIES OF...LEAVENWORTH...MAZAMA...TWISP...WINTHROP 256 PM PDT THU OCT 18 2007 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 3 PM PDT FRIDAY ABOVE 3500 FEET... A WINTER STORM WARNING ABOVE 3500 FEET REMAINS IN EFFECT UNTIL 3 PM PDT FRIDAY. SNOW WILL CONTINUE IN THE MOUNTAINS OF THE EAST SLOPES OF THE NORTHERN CASCADES THROUGH EARLY THIS EVENING AND THEN DECREASE OVERNIGHT. ADDITIONALLY SOUTHEAST WINDS OF 20-30 MPH IN THE MOUNTAINS WILL PRODUCE AREAS OF BLOWING SNOW. SNOW WILL INCREASE FRIDAY MORNING WITH THE ARRIVAL OF THE NEXT STORM. THIS STORM WILL LIKELY DROP ANOTHER 2 TO 4 INCHES OF SNOW ABOVE 3500 FEET. TOTAL SNOW ACCUMULATIONS FROM BOTH SYSTEMS WILL RANGE FROM 6 TO 10 INCHES ABOVE 3500 FEET. HAZARDOUS WINTER TRAVEL CONDITIONS ARE EXPECTED TO DEVELOP ALONG THE NORTH CASCADE HIGHWAY WEST OF MAZAMA THROUGH THE DAY...AS WELL AS LOCATIONS JUST EAST OF STAMPEDE AND STEVENS PASS. THE SNOWS WILL IMPACT PERSONS WITH RECREATION INTERESTS THROUGHOUT THIS PORTION OF THE CASCADES. 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. $$ WAZ038-190600- /O.CON.KOTX.WS.W.0005.000000T0000Z-071019T2200Z/ OKANOGAN HIGHLANDS- INCLUDING THE CITIES OF...REPUBLIC...INCHELIUM 256 PM PDT THU OCT 18 2007 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 3 PM PDT FRIDAY ABOVE 5000 FEET... A WINTER STORM WARNING ABOVE 5000 FEET REMAINS IN EFFECT UNTIL 3 PM PDT FRIDAY. SNOW WILL CONTINUE THROUGH EARLY THIS EVENING AND THEN TAPER OFF. SNOW WILL DEVELOP AGAIN FRIDAY MORNING ABOVE 4000 FEET. ADDITIONAL ACCUMULATIONS OF 3 TO 6 INCHES ARE LIKELY IN THE MOUNTAINS ABOVE 5000 FEET WITH 1 TO 3 INCHES POSSIBLE DOWN TO 4000 FEET. TOTAL SNOW ACCUMULATIONS FROM BOTH SYSTEMS WILL RANGE FROM 5 TO 9 INCHES ABOVE 5000 FEET. SOUTHEAST WINDS OF 25-35 MPH IN THE MOUNTAINS WILL ALSO PRODUCE AREAS OF BLOWING SNOW THROUGH THIS EVENING. SNOW AT THE FORECAST ELEVATIONS WILL AFFECT SHERMAN PASS ALONG HIGHWAY 20. ALSO PEOPLE WITH RECREATION INTERESTS IN THE HIGHER MOUNTAINS SHOULD PAY CLOSE ATTENTION TO THE CHANGING WEATHER. A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. $$ IDZ001-WAZ037-190600- /O.CON.KOTX.WS.W.0005.000000T0000Z-071020T0500Z/ NORTHERN PANHANDLE-NORTHEAST MOUNTAINS- INCLUDING THE CITIES OF...SANDPOINT...RATHDRUM...BONNERS FERRY... PRIEST RIVER...COLVILLE...DEER PARK...CHEWELAH...NEWPORT... KETTLE FALLS 256 PM PDT THU OCT 18 2007 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 PM PDT FRIDAY ABOVE 5000 FEET... A WINTER STORM WARNING ABOVE 5000 FEET REMAINS IN EFFECT UNTIL 10 PM PDT FRIDAY. SNOW WILL CONTINUE THROUGH EARLY THIS EVENING AND THEN TAPER OFF. SNOW WILL DEVELOP AGAIN FRIDAY MORNING ABOVE 4000 FEET. ADDITIONAL ACCUMULATIONS OF 3 TO 6 INCHES ARE LIKELY IN THE MOUNTAINS ABOVE 5000 FEET. TOTAL SNOW ACCUMULATIONS FROM BOTH SYSTEMS WILL RANGE FROM 5 TO 9 INCHES ABOVE 5000 FEET. SOUTHEAST WINDS OF 25-35 MPH IN THE MOUNTAINS WILL ALSO PRODUCE AREAS OF BLOWING SNOW THROUGH THIS EVENING. SNOW AT THE FORECAST ELEVATIONS WILL OCCUR ABOVE ALL MAJOR PASS LEVELS...HOWEVER IT WILL IMPACT PERSONS WITH RECREATION INTERESTS IN THE HIGHER MOUNTAINS. A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. $$
000 WWUS46 KOTX 190140 WSWOTX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE SPOKANE WA 640 PM PDT THU OCT 18 2007 ...SECOND OF TWO QUICK MOVING STORMS TO ARRIVE FRIDAY MORNING... A BREAK IN THE STORMY WEATHER IS EXPECTED THIS EVENING BEFORE THE SECOND IN A PAIR OF FAST MOVING STORMS MOVES INTO EASTERN WASHINGTON FRIDAY MORNING. SIGNIFICANT SNOW ACCUMULATIONS ACCOMPANIED BY GUSTY WINDS WILL OCCUR IN MANY MOUNTAIN LOCATIONS IN THE INLAND NORTHWEST. WINTER STORM CONDITIONS ARE EXPECTED FROM THE EAST SLOPES OF THE NORTHERN CASCADES THROUGH THE NORTHERN MOUNTAINS OF WASHINGTON INTO THE MOUNTAINS OF THE NORTHERN PANHANDLE. WAZ042-190945- /O.CON.KOTX.WS.W.0005.000000T0000Z-071019T2200Z/ EAST SLOPES NORTHERN CASCADES- INCLUDING THE CITIES OF...LEAVENWORTH...MAZAMA...TWISP...WINTHROP 640 PM PDT THU OCT 18 2007 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 3 PM PDT FRIDAY ABOVE 3500 FEET... A WINTER STORM WARNING ABOVE 3500 FEET REMAINS IN EFFECT UNTIL 3 PM PDT FRIDAY FOR THE EAST SLOPES OF THE NORTHERN CASCADES. FOR THIS EVENING...AN ADDITIONAL INCH OR TWO OF SNOW ACCUMULATION WILL BE POSSIBLE ALONG THE CREST OF THE CASCADES...WITH SNOW LEVELS AROUND 3500 FEET. AWAY FROM THE CREST...LITTLE ADDITIONAL SNOW ACCUMULATION IS ANTICIPATED UNTIL AFTER MIDNIGHT. ANOTHER ROUND OF SNOW WILL BEGIN PRIOR TO SUNRISE AND CONTINUE THROUGH THE MORNING. THIS STORM WILL LIKELY DROP ANOTHER 2 TO 4 INCHES OF SNOW ABOVE 3500 FEET. TOTAL SNOW ACCUMULATIONS FROM BOTH SYSTEMS WILL RANGE FROM 6 TO 10 INCHES ABOVE 3500 FEET. A WINTER STORM WARNING FOR ELEVATIONS ABOVE 3500 FEET FEET MEANS THAT TRAVEL THROUGH THE MOUNTAINS WILL BE DANGEROUS OR IMPOSSIBLE. EVEN THOUGH ROAD CONDITIONS MAY BE GOOD IN THE VALLEYS AND LOW ELEVATIONS...DRIVING ACROSS THE PASSES IS NOT RECOMMENDED. HAZARDOUS WINTER TRAVEL CONDITIONS ARE EXPECTED TO DEVELOP ALONG THE NORTH CASCADE HIGHWAY WEST OF MAZAMA THROUGH THE DAY...AS WELL AS LOCATIONS JUST EAST OF STAMPEDE AND STEVENS PASS. $$ WAZ038-190945- /O.CON.KOTX.WS.W.0005.000000T0000Z-071019T2200Z/ OKANOGAN HIGHLANDS- INCLUDING THE CITIES OF...REPUBLIC...INCHELIUM 640 PM PDT THU OCT 18 2007 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 3 PM PDT FRIDAY ABOVE 5000 FEET... A WINTER STORM WARNING ABOVE 5000 FEET REMAINS IN EFFECT UNTIL 3 PM PDT FRIDAY FOR THE OKANOGAN HIGHLANDS. FOR THIS EVENING...THE THREAT OF ADDITIONAL SNOW ACCUMULATIONS HAS ENDED. SOME SCATTERED SNOW SHOWERS ARE POSSIBLE THROUGH THE EVENING...BUT ACCUMULATING SNOW IS NOT EXPECTED AGAIN UNTIL AROUND SUNRISE. THIS SECOND ROUND OF SNOW WILL LIKELY PRODUCE ANOTHER 2 TO 4 INCHES OF SNOW ABOVE 3500 FEET. TOTAL SNOW ACCUMULATIONS FROM TODAY ALONG WITH SNOW TOMORROW SHOULD ADD UP TO 6 TO 10 INCHES ABOVE 5000 FEET. A WINTER STORM WARNING FOR ELEVATIONS ABOVE 3500 FEET FEET MEANS THAT TRAVEL THROUGH THE MOUNTAINS WILL BE DANGEROUS OR IMPOSSIBLE. EVEN THOUGH ROAD CONDITIONS MAY BE GOOD IN THE VALLEYS AND LOW ELEVATIONS...DRIVING ACROSS THE PASSES IS NOT RECOMMENDED. SNOW WILL AFFECT SHERMAN PASS ALONG HIGHWAY 20. ALSO PEOPLE WITH RECREATION INTERESTS IN THE HIGHER MOUNTAINS SHOULD PAY CLOSE ATTENTION TO THE CHANGING WEATHER. $$ IDZ001-WAZ037-190945- /O.CON.KOTX.WS.W.0005.000000T0000Z-071020T0500Z/ NORTHERN PANHANDLE-NORTHEAST MOUNTAINS- INCLUDING THE CITIES OF...SANDPOINT...RATHDRUM...BONNERS FERRY... PRIEST RIVER...COLVILLE...DEER PARK...CHEWELAH...NEWPORT... KETTLE FALLS 640 PM PDT THU OCT 18 2007 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 PM PDT FRIDAY ABOVE 5000 FEET... A WINTER STORM WARNING ABOVE 5000 FEET REMAINS IN EFFECT UNTIL 10 PM PDT FRIDAY FOR THE NORTHEAST MOUNTAINS IN WASHINGTON AS WELL AS THE NORTHERN PANHANDLE MOUNTAINS IN IDAHO. FOR THIS EVENING...SNOW SHOWERS ABOVE 5000 FEET WILL HAVE THE POTENTIAL TO PRODUCE ADDITIONAL ACCUMULATIONS UP TO AN INCH BEFORE SNOW SHOWERS DIMINISH BETWEEN 7 PM AND 8 PM. SOUTHEAST WINDS OF 25-35 MPH IN THE MOUNTAINS WILL ALSO PRODUCE AREAS OF BLOWING SNOW THROUGH THIS EVENING. SNOW WILL REDEVELOP FRIDAY MORNING ABOVE 4000 FEET. ADDITIONAL ACCUMULATIONS OF 3 TO 6 INCHES ARE LIKELY IN THE MOUNTAINS ABOVE 5000 FEET. TOTAL SNOW ACCUMULATIONS FROM TODAY AND TOMORROW WILL RANGE FROM 5 TO 9 INCHES ABOVE 5000 FEET. A WINTER STORM WARNING FOR ELEVATIONS ABOVE 5000 FEET FEET MEANS THAT TRAVEL THROUGH THE MOUNTAINS WILL BE DANGEROUS OR IMPOSSIBLE. EVEN THOUGH ROAD CONDITIONS MAY BE GOOD IN THE VALLEYS AND LOW ELEVATIONS...DRIVING ACROSS THE PASSES IS NOT RECOMMENDED. SNOW AT THE FORECAST ELEVATIONS WILL OCCUR ABOVE ALL MAJOR PASS LEVELS...HOWEVER IT WILL IMPACT PERSONS WITH RECREATION INTERESTS IN THE HIGHER MOUNTAINS. $$
000 WWUS46 KOTX 190556 WSWOTX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE SPOKANE WA 1056 PM PDT THU OCT 18 2007 ...SECOND OF TWO QUICK MOVING STORMS TO ARRIVE FRIDAY MORNING... PRECIPITATION WILL REDEVELOP IN THE MOUNTAINS OF THE INLAND NORTHWEST DURING THE EARLY MORNING HOURS. SIGNIFICANT SNOW ACCUMULATIONS ACCOMPANIED BY GUSTY WINDS WILL OCCUR IN MANY MOUNTAIN LOCATIONS INCLUDING THE EAST SLOPES OF THE NORTHERN CASCADES...THE NORTHERN MOUNTAINS OF WASHINGTON...AND THE MOUNTAINS OF THE NORTHERN PANHANDLE. WAZ042-191400- /O.CON.KOTX.WS.W.0005.000000T0000Z-071019T2200Z/ EAST SLOPES NORTHERN CASCADES- INCLUDING THE CITIES OF...LEAVENWORTH...MAZAMA...TWISP...WINTHROP 1056 PM PDT THU OCT 18 2007 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 3 PM PDT FRIDAY ABOVE 3500 FEET... A WINTER STORM WARNING ABOVE 3500 FEET REMAINS IN EFFECT UNTIL 3 PM PDT FRIDAY. ANOTHER ROUND OF SNOW WILL BEGIN PRIOR TO SUNRISE AND CONTINUE THROUGH THE MORNING. THIS STORM WILL LIKELY DROP ANOTHER 2 TO 4 INCHES OF SNOW ABOVE 3500 FEET. THE MOST SIGNIFICANT ACCUMULATIONS WILL LIKELY OCCUR BETWEEN 5 AM AND 10 AM. TOTAL SNOW ACCUMULATIONS FROM THURSDAY AND FRIDAY WILL RANGE FROM 6 TO 10 INCHES ABOVE 3500 FEET. ELEVATIONS ABOVE 5000 FEET MAY RECEIVE 10 TO 15 INCHES OF TOTAL SNOW ACCUMULATION...WITH THE HIGHEST ACCUMULATIONS NEAR THE CASCADE CREST. A WINTER STORM WARNING FOR ELEVATIONS ABOVE 3500 FEET FEET MEANS THAT TRAVEL THROUGH THE MOUNTAINS WILL BE DANGEROUS OR IMPOSSIBLE. EVEN THOUGH ROAD CONDITIONS MAY BE GOOD IN THE VALLEYS AND LOW ELEVATIONS...DRIVING ACROSS THE PASSES IS NOT RECOMMENDED. HAZARDOUS WINTER TRAVEL CONDITIONS ARE EXPECTED TO DEVELOP ALONG THE NORTH CASCADE HIGHWAY WEST OF MAZAMA THROUGH THE DAY...AS WELL AS LOCATIONS JUST EAST OF STAMPEDE AND STEVENS PASS. $$ WAZ038-191400- /O.CON.KOTX.WS.W.0005.000000T0000Z-071019T2200Z/ OKANOGAN HIGHLANDS- INCLUDING THE CITIES OF...REPUBLIC...INCHELIUM 1056 PM PDT THU OCT 18 2007 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 3 PM PDT FRIDAY ABOVE 5000 FEET... A WINTER STORM WARNING ABOVE 5000 FEET REMAINS IN EFFECT UNTIL 3 PM PDT FRIDAY. ANOTHER ROUND OF MOUNTAIN SNOW WILL SPREAD INTO THE OKANOGAN HIGHLANDS AROUND SUNRISE AND CONTINUE THROUGH THE MORNING HOURS. AN ADDITIONAL 2 TO 5 INCHES OF SNOW IS LIKELY ABOVE 5000 FEET. TOTAL SNOW ACCUMULATIONS FROM TODAY ALONG WITH SNOW TOMORROW SHOULD ADD UP TO 6 TO 10 INCHES ABOVE 5000 FEET. A WINTER STORM WARNING FOR ELEVATIONS ABOVE 5000 FEET MEANS THAT TRAVEL THROUGH THE MOUNTAINS WILL BE DANGEROUS OR IMPOSSIBLE. EVEN THOUGH ROAD CONDITIONS MAY BE GOOD IN THE VALLEYS AND LOW ELEVATIONS...DRIVING ACROSS THE PASSES IS NOT RECOMMENDED. SNOW WILL AFFECT SHERMAN PASS ALONG HIGHWAY 20. ALSO PEOPLE WITH RECREATION INTERESTS IN THE HIGHER MOUNTAINS SHOULD PAY CLOSE ATTENTION TO THE CHANGING WEATHER. $$ IDZ001-WAZ037-191400- /O.CON.KOTX.WS.W.0005.000000T0000Z-071020T0500Z/ NORTHERN PANHANDLE-NORTHEAST MOUNTAINS- INCLUDING THE CITIES OF...SANDPOINT...RATHDRUM...BONNERS FERRY... PRIEST RIVER...COLVILLE...DEER PARK...CHEWELAH...NEWPORT... KETTLE FALLS 1056 PM PDT THU OCT 18 2007 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 PM PDT FRIDAY ABOVE 5000 FEET... A WINTER STORM WARNING ABOVE 5000 FEET REMAINS IN EFFECT UNTIL 10 PM PDT FRIDAY. SNOW WILL REDEVELOP FRIDAY MORNING WITH ADDITIONAL SNOW ACCUMULATIONS OF 2 TO 4 INCHES ABOVE 4000 FEET. SNOW LEVELS WILL INITIALLY RANGE FROM 4000 TO 5000 FEET AND RISE TO ABOVE 6000 FEET BY LATE MORNING. TOTAL SNOW ACCUMULATIONS FROM THURSDAY AND FRIDAY WILL RANGE FROM 5 TO 9 INCHES ABOVE 5000 FEET. A FEW SPOTS ABOVE 6000 FEET COULD RECEIVE UP TO A FOOT OF TOTAL ACCUMULATION. A WINTER STORM WARNING FOR ELEVATIONS ABOVE 5000 FEET FEET MEANS THAT TRAVEL THROUGH THE MOUNTAINS WILL BE DANGEROUS OR IMPOSSIBLE. EVEN THOUGH ROAD CONDITIONS MAY BE GOOD IN THE VALLEYS AND LOW ELEVATIONS...DRIVING ACROSS THE PASSES IS NOT RECOMMENDED. SNOW AT THE FORECAST ELEVATIONS WILL OCCUR ABOVE ALL MAJOR PASS LEVELS...HOWEVER IT WILL IMPACT PERSONS WITH RECREATION INTERESTS IN THE HIGHER MOUNTAINS. $$
000 WWUS46 KOTX 191333 CCA WSWOTX URGENT - WINTER WEATHER MESSAGE...CORRECTED NATIONAL WEATHER SERVICE SPOKANE WA 623 AM PDT FRI OCT 19 2007 ...SECOND OF TWO QUICK MOVING STORMS PUSHING THROUGH THE AREA TODAY... SIGNIFICANT SNOW ACCUMULATIONS ACCOMPANIED BY GUSTY WINDS WILL OCCUR IN MANY MOUNTAIN LOCATIONS INCLUDING THE EAST SLOPES OF THE NORTHERN CASCADES...THE NORTHERN MOUNTAINS OF WASHINGTON...AND THE MOUNTAINS OF THE NORTHERN PANHANDLE. WAZ042-192145- /O.COR.KOTX.WS.W.0005.000000T0000Z-071019T2200Z/ EAST SLOPES NORTHERN CASCADES- INCLUDING THE CITIES OF...LEAVENWORTH...MAZAMA...TWISP...WINTHROP 623 AM PDT FRI OCT 19 2007 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 3 PM PDT FRIDAY ABOVE 3500 FEET... A WINTER STORM WARNING ABOVE 3500 FEET REMAINS IN EFFECT UNTIL 3 PM PDT TODAY. ANOTHER ROUND OF SNOW WILL LIKELY DROP ANOTHER 2 TO 4 INCHES OF SNOW ABOVE 3500 FEET. TOTAL SNOW ACCUMULATIONS BEGINNING THURSDAY WILL RANGE FROM 6 TO 10 INCHES ABOVE 3500 FEET. ELEVATIONS ABOVE 5000 FEET MAY RECEIVE 10 TO 15 INCHES OF TOTAL SNOW ACCUMULATION...WITH THE HIGHEST ACCUMULATIONS NEAR THE CASCADE CREST. A WINTER STORM WARNING FOR ELEVATIONS ABOVE 3500 FEET FEET MEANS THAT TRAVEL THROUGH THE MOUNTAINS WILL BE DANGEROUS OR IMPOSSIBLE. EVEN THOUGH ROAD CONDITIONS MAY BE GOOD IN THE VALLEYS AND LOW ELEVATIONS...DRIVING ACROSS THE PASSES IS NOT RECOMMENDED. HAZARDOUS WINTER TRAVEL CONDITIONS ARE EXPECTED TO DEVELOP ALONG THE NORTH CASCADE HIGHWAY WEST OF MAZAMA THROUGH THE DAY...AS WELL AS LOCATIONS JUST EAST OF STAMPEDE AND STEVENS PASS. $$ WAZ038-192145- /O.COR.KOTX.WS.W.0005.000000T0000Z-071019T2200Z/ OKANOGAN HIGHLANDS- INCLUDING THE CITIES OF...REPUBLIC...INCHELIUM 623 AM PDT FRI OCT 19 2007 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 3 PM PDT FRIDAY ABOVE 5000 FEET... A WINTER STORM WARNING ABOVE 5000 FEET REMAINS IN EFFECT UNTIL 3 PM PDT TODAY. EXPECT AN ADDITIONAL 2 TO 5 INCHES OF SNOW ABOVE 5000 FEET TODAY. TOTAL SNOW ACCUMULATIONS WILL RANGE FROM 6 TO 10 INCHES ABOVE 5000 FEET. A WINTER STORM WARNING FOR ELEVATIONS ABOVE 5000 FEET MEANS THAT TRAVEL THROUGH THE MOUNTAINS WILL BE DANGEROUS OR IMPOSSIBLE. EVEN THOUGH ROAD CONDITIONS MAY BE GOOD IN THE VALLEYS AND LOW ELEVATIONS...DRIVING ACROSS THE PASSES IS NOT RECOMMENDED. SNOW WILL AFFECT SHERMAN PASS ALONG HIGHWAY 20. ALSO PEOPLE WITH RECREATION INTERESTS IN THE HIGHER MOUNTAINS SHOULD PAY CLOSE ATTENTION TO THE CHANGING WEATHER. $$ IDZ001-WAZ037-192145- /O.COR.KOTX.WS.W.0005.000000T0000Z-071020T0500Z/ NORTHERN PANHANDLE-NORTHEAST MOUNTAINS- INCLUDING THE CITIES OF...SANDPOINT...RATHDRUM...BONNERS FERRY... PRIEST RIVER...COLVILLE...DEER PARK...CHEWELAH...NEWPORT... KETTLE FALLS 623 AM PDT FRI OCT 19 2007 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 PM PDT FRIDAY ABOVE 5000 FEET... A WINTER STORM WARNING ABOVE 5000 FEET REMAINS IN EFFECT UNTIL 10 PM PDT TODAY. EXPECT ADDITIONAL SNOW ACCUMULATIONS OF 3 TO 5 INCHES ABOVE 4500 FEET. TOTAL SNOW ACCUMULATIONS BEGINNING THURSDAY WILL RANGE FROM 5 TO 9 INCHES ABOVE 5000 FEET. A FEW SPOTS ABOVE 6000 FEET COULD RECEIVE UP TO A FOOT OF TOTAL ACCUMULATION. A WINTER STORM WARNING FOR ELEVATIONS ABOVE 5000 FEET FEET MEANS THAT TRAVEL THROUGH THE MOUNTAINS WILL BE DANGEROUS OR IMPOSSIBLE. EVEN THOUGH ROAD CONDITIONS MAY BE GOOD IN THE VALLEYS AND LOW ELEVATIONS...DRIVING ACROSS THE PASSES IS NOT RECOMMENDED. SNOW AT THE FORECAST ELEVATIONS WILL OCCUR ABOVE ALL MAJOR PASS LEVELS...HOWEVER IT WILL IMPACT PERSONS WITH RECREATION INTERESTS IN THE HIGHER MOUNTAINS. $$
000 WWUS46 KOTX 191516 WSWOTX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE SPOKANE WA 816 AM PDT FRI OCT 19 2007 WAZ038-042-191630- /O.CAN.KOTX.WS.W.0005.000000T0000Z-071019T2200Z/ OKANOGAN HIGHLANDS-EAST SLOPES NORTHERN CASCADES- INCLUDING THE CITIES OF...REPUBLIC...INCHELIUM...LEAVENWORTH... MAZAMA...TWISP...WINTHROP 816 AM PDT FRI OCT 19 2007 ...WINTER STORM WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN SPOKANE HAS CANCELLED THE WINTER STORM WARNING. MOUNTAIN SNOW HAS TAPERED OFF EXCEPT NEAR THE CASCADE CREST...AND SNOW LEVELS HAVE RISEN ABOVE 4000 FEET. THUS...THE WINTER STORM WARNING HAS BEEN CANCELLED. $$ IDZ001-WAZ037-191630- /O.CAN.KOTX.WS.W.0005.000000T0000Z-071020T0500Z/ NORTHERN PANHANDLE-NORTHEAST MOUNTAINS- INCLUDING THE CITIES OF...SANDPOINT...RATHDRUM...BONNERS FERRY... PRIEST RIVER...COLVILLE...DEER PARK...CHEWELAH...NEWPORT... KETTLE FALLS 816 AM PDT FRI OCT 19 2007 ...WINTER STORM WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN SPOKANE HAS CANCELLED THE WINTER STORM WARNING. SNOW LEVELS HAVE RISEN TO ABOVE 6000 FEET THIS MORNING WITH SNOW TURNING TO RAIN AT ALL ELEVATIONS. SNOW LEVELS WILL LOWER TO AROUND 5500 FEET THIS AFTERNOON...BUT WITH LITTLE OR NO ADDITIONAL ACCUMULATION. $$
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 Oct 18, 3:44 AM PDT, 1 hour 11 minutes earlier.
Area forecast discussion, Oct 18, 3:44 AM PDT, 1 hour 11 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SPOKANE WA
344 AM PDT THU OCT 18 2007
.SYNOPSIS...
COOL AND STORMY WEATHER WILL PERSIST THROUGH THE END OF THE WORK-WEEK
AS A STRONG UPPER LEVEL TROUGH WILL REMAIN POISED RIGHT OFF THE
COAST. THE STRONGEST AND COLDEST DISTURBANCES WILL OCCUR TODAY AND
FRIDAY BRINGING SIGNIFICANT SNOWS TO SOME OF THE HIGHER MOUNTAINS. THE
WEATHER WILL GRADUALLY DRY AND WARM BY THE LATTER HALF OF THE
WEEKEND AS RIDGING REPLACES THE TROUGH.
&&
.DISCUSSION...
TODAY AND TONIGHT...STRONGEST STORM OF THE EARLY AUTUMN SEASON TO
BEAR DOWN ON THE INLAND NW LATER TODAY. AS OF 09Z...SURFACE LOW
CENTER ASSOCIATED WITH THIS STORM WAS LOCATED NEAR 44/132. THE RUC
FORECAST THE LOW DEPTH TO BE AROUND 990 MBS...HOWEVER IT IS LIKELY
1-2 MBS DEEPER THAN THIS BASED ON NEARBY BUOY 5 REPORT OF 990 MBS.
THIS BODES WELL FOR THE DEEPER NAM AND GFS PROGS WHICH DEEPEN THE
LOW TO AROUND 980 AROUND 18Z AS IT HEADS TOWARD VANCOUVER ISLAND.
WHILE THE DEPTH OF THE LOW WONT BE TERRIBLY CRITICAL FOR OUR
FORECAST THIS MORNING...IT WILL ENHANCE THE UPSLOPE FLOW INTO THE
CASCADES AS WELL AS STRENGTHEN THE COLD AIR DAMMING RESULTING IN
A SIGNIFICANT WINTER WEATHER EVENT FOR THAT AREA.
THE ONSET OF THE PRECIP WILL OCCUR AS WARM FRONTAL/ISENTROPIC
ASCENT BEGINS TO SATURATE THE AREA FROM SW TO NE THROUGH THE DAY.
THE 295K ISENTROPIC SURFACE OFF THE GFS SHOWS A GOOD CORRELATION
WITH WIDESPREAD PRECIP BAND CURRENTLY COVERING MOST OF NW OREGON
AND SW WA. THE ISENTROPIC ASCENT ON THIS SURFACE SHOWS VERY
IMPRESSIVE LIFTING POTENTIAL...WITH PRESSURE VALUES RANGING FROM
AROUND 800 MBS ALONG THE OREGON BORDER UP TO 650 MBS BY THE TIME
IT REACHES THE CANADIAN BORDER WITH DUE SOUTHERLY FLOW THROUGHOUT.
IN OTHER WORDS...LIFTING WILL BE NO PROBLEM. THROW IN THE
OROGRAPHIC ASCENT INTO THE CASCADES AND NORTHERN MOUNTAINS...AND
PRECIP WILL BE A GIVEN...SOME OF IT HEAVY AT TIMES. WHILE PRECIP
ITSELF WONT BE A PROBLEM...SNOW LEVELS COULD PROVE A LITTLE
TRICKY. GIVEN THE TRACK OF THE LOW FROM ITS CURRENT POSITION TO
VANCOUVER ISLAND BY 00Z THIS AFTERNOON...COLD AIR DAMMING WILL BE
PREVALENT IN THE NORTH CASCADES AS THE LOW-LEVEL PRESSURE GRADIENTS
WILL EXHIBIT A HEALTHY OFFSHORE ORIENTATION. LATEST MESOWEST
ANALYSIS PLACES SNOW LEVEL ON THE GROUND OVER MOST LOCATIONS...A
BIT LOWER THAN THE SUGGESTED BY THE MODEL SNOW LEVELS. NOT
CONFIDENT THEY WILL RISE SIGNIFICANTLY THROUGH THE DAY EITHER AS
PERIODS OF PRECIP COMBINED WITH COLD AIR DAMMING MITIGATE THE
TYPICAL DAYTIME HEATING. FOR THIS REASON WE WILL ISSUE A WINTER
STORM WARMING FOR THE CASCADES...WITH THE HEAVIEST SNOWS
OCCURRING ABOVE 3000 FEET...HOWEVER EVEN THE VALLEYS COULD
POTENTIALLY SEE A COUPLE INCHES OF SNOW DEPENDING ON GROUND
TEMPERATURES. THE REASON FOR A WINTER STORM WARNING VS. A HEAVY
SNOW WARNING IS DUE TO THE STRONG WINDS COMBINED WITH THE SNOW IN
THE MOUNTAINS.
WHILE THE CASCADE ZONES WILL LIKELY BEAR THE BRUNT OF THE
STORM...THE OTHER NORTHERN MOUNTAIN ZONES WILL SEE SOME ACTIVITY
AS WELL...HOWEVER NOT CONFIDENT THE IMPACT WILL BE WIDESPREAD OR SIGNIFICANT.
THESE ZONES WILL NOT BE THE BENEFICIARIES OF STRONG COLD AIR
DAMMING DUE TO PERSISTENT S-SE FLOW THROUGH THE LOWER ATMOSPHERE
WITH THE APPROACHING WARM FRONT. PRECIP IN THESE ZONES WILL TAKE SOME
TIME TO DEVELOP AS THE FRONT CONTINUES TO DRIFT NORTH-
NORTHEASTWARD THROUGH THE DAY. AS THE FRONT NEARS...THE SNOW
LEVELS WILL ALSO CLIMB...REACHING AN APEX OF 5K FEET OR HIGHER
OVER IDAHO ZONE 1 BY AFTERNOON. NOT SURE ENOUGH PRECIP WILL
ACCUMULATE IN THIS ZONE BEFORE THE SNOW LEVELS CLIMB ABOVE
MENTIONABLE LEVELS AFTER 00Z. HOWEVER ANY SNOW WHICH DOES FALL
WILL BE BUFFETED BY STRONG 850 MB WINDS OF 25-35 KTS OR STRONGER.
THUS USING THE EARLY SEASON CRITERIA WE WILL CHANGE HEAVY SNOW
WARNING TO WINTER STORM WARNING BASED ON THE SNOW AND BLOWING SNOW
CRITERIA.
OTHER ZONES WILL ALL RECEIVE APPRECIABLE RAINFALL THROUGH THE DAY
AS THE WARM FRONT WORKS ACROSS THE AREA. THE PRECIP WILL BEGIN TO
TAPER OFF LATE IN THE AFTERNOON AS THE WARM SECTOR MOVES INTO THE
SOUTHERN COLUMBIA BASIN...LEWISTON AREA...AND PALOUSE LATE IN THE
DAY.
FOR TONIGHT BOTH THE GFS AND NAM FORECAST THE LOW TO TRACK ACROSS
NE THROUGH BC...A DECENT PATH FOR STRONG WINDS ACROSS THE AREA AS THE
SW LOW-LEVEL JET KICKS IN. WE WOULD PREFER TO SEE A DUE EAST TRACK
FOR THE LOW WITH STRONG PRESSURE RISES MOVING IN FROM THE WEST TO
GET OUR OPTIMUM WIND PATTERN. HOWEVER IT LOOKS LIKE CONDITIONS
COULD FLIRT WITH WIND ADVISORY CRITERIA BETWEEN 03Z-06Z ACROSS THE
EASTERN COLUMBIA BASIN...PALOUSE...AND SPOKANE AREA. AT THIS POINT
THE MOS WIND FORECAST DOES NOT SUPPORT A WIND ADVISORY...NOR DOES
THE MM5...HOWEVER IT WILL BE A CLOSE CALL. WILL REVISIT THIS IDEA
AND POSSIBLY ISSUE A WIND HIGHLIGHT LATER THIS MORNING.
AS THE LOW MOVE NE THROUGH BC... THE PRECIP WILL GRADUALLY TAPER
OFF AS MUCH DRIER AIR BEGINS TO MOVE IN THROUGH THE MIDDLE
ATMOSPHERE WITH THE WARM SECTOR HEADING INTO THE AREA. ALSO...THE
PRESSURE GRADIENTS ACROSS THE CASCADES WILL TURN ONSHORE...RESULTING
IN DOWNSLOPE FLOW. THE BREAK WILL BE BRIEF HOWEVER AS WARM FRONTAL
PRECIP WITH ANOTHER SYSTEM MOVES INTO THE SOUTHERN ZONES LATE
TONIGHT...RESULTING IN ANOTHER BATCH OF AT LEAST MODERATE PRECIP.
FX
FRIDAY THROUGH THURSDAY...MODEL SOLUTIONS SHOW MEAGER AGREEMENT
FRIDAY THEN TRANSLATE MUCH CLOSER TOGETHER THROUGH THE REST OF THE
PERIOD. THOUGH AT 500 MB THROUGH THE LATE PORTION OF THE WORK
WEEK...THE GFS...CANADIAN...ECMWF...AND NAM ALL INDICATE JUST WEAK
SHORT WAVE ACTIVITY TRAVERSING THE AREA...THE STORY IS REALLY
GENERALLY FALLING WELL BELOW THAT LEVEL.
BY 12Z FRIDAY...THE GFS...NAM...AND CANADIAN HAVE ALL BEGUN TO
SPIN UP A SURFACE LOW PRESSURE CENTER NEAR OR JUST SOUTH OF OUR
CWA. THROUGH FRIDAY MORNING THE NAM AND CANADIAN GENERALLY TRACK
THE LOW LEVEL CENTER ACROSS THE SOUTHERN CWA TOWARD
PULLMAN...WHILE THE GFS TAKES A MORE NORTHERLY TRACK TOWARD
SPOKANE WHILE AT THE SAME TIME INDICATING A MUCH MORE COHERENT LOW
LEVEL FLOW REGIME AROUND THE SURFACE CYCLONE. THOUGH THESE TWO
SCENARIOS WORK OUT DIFFERENTLY IN TERMS OF WHERE DYNAMICAL AND
FRONTOGENETICAL FORCING FALLS THROUGH THE DAY...THEY DO NOT
REALLY IMPACT WHERE LARGE SCALE ISENTROPIC ASCENT AND WIDESPREAD
STRATIFORM PRECIPITATION DEVELOPS AND SO HAVE RAISED BASICALLY THE
ENTIRE CWA TO 100 POPS. HOWEVER THE DETAILS WITH THIS SYSTEM THAT
ARE IMPORTANT ARE MORE LIKELY TO BE THERMAL PROFILES NEAR THE
MOUNTAINS...UPSLOPE FLOW REGIMES...AND POTENTIAL INSTABILITY. ALL
OF THESE ARE NOT NECESSARILY AGREED UPON FROM MODEL TO MODEL.
THE GFS AND NAM DO INDICATE RATHER SIMILAR THERMAL PROFILES ACROSS
THE CASCADES AND OKANOGAN HIGHLANDS THROUGH FRIDAY...HOWEVER THE
STORY ISNT THE SAME FARTHER EAST. WITH THE STRONGER AND FARTHER
NORTH SURFACE LOW TRACK...WARM SECTOR AIR ENCROACHES ON THE
NORTHEAST MOUNTAINS AND NORTHERN PANHANDLE BY LATE MORNING FRIDAY.
HOWEVER...THE GFS INDICATES THAT WHILE STRONG THETA-E ADVECTION
CONTINUES TO TAKE PLACE INTO THESE AREAS...THEY ARE UNLIKELY TO
ENTER THE WARM SECTOR AS THE SURFACE CYCLONE IS NOT ALLOWED TO
DEVELOP SUFFICIENTLY ENOUGH TO OCCLUDE THE SYSTEM AND DRAG WARM
AIR NORTHWARD AND WESTWARD ALL THE WAY BACK TO THE MAIN LOW
CENTER. AS A RESULT...SNOW LEVELS ARE LIKELY TO VARY WILDLY ACROSS
THE ID PANHANDLE. ADDITIONALLY...GOOD UPSLOPE FLOW COMPONENT INTO
THE CASCADES SHOULD TRAP THE COLD AIR IN THAT AREA...KEEPING SNOW
LEVELS LOW THROUGH THE INITIAL ONSET OF PRECIPITATION AND AS
NORTHERLY FLOW ESTABLISHES ITSELF AT THE SURFACE PER GFS/MAV WIND
FIELDS AND COLD AIR CAN BE ADDITIONALLY LOCKED IN VIA ADVECTIVE
PROCESSES.
WITH THE MAIN UPPER JET TOPPING 150 KTS AS IT APPROACHES THE AREA
FRIDAY MORNING...AND ADDITIONALLY COUPLING RATHER WELL WITH THE
RIGHT REAR QUADRANT OF THE DEPARTING UPPER JET STREAK FROM
THURSDAY...UPPER DIVERGENCE SHOULD BE AMPLE TO SUPPORT STRONG
VERTICAL MOTIONS FRIDAY. ADDITIONALLY...FLOW AROUND THE LOW LEVEL
CENTER AT 850 MB TOPS 50 KTS ACROSS THE EASTERN AND SOUTHERN CWA
THROUGH FRIDAY. AS THIS FLOW ASCENDS INTO THE TROWAL REGION AND
FORMS THE RATHER IMPRESSIVE THETA-E CANYON EVIDENT AT 700 MB AND
500 MB...A VERY IMPRESSIVE FRONTOGENETICAL MAXIMA DEVELOPS IN THIS
LAYER RIGHT ACROSS THE CWA. WITH HELP FROM CONVERGENCE AROUND 850
MB...DIVERGENCE ALOFT...THE FRONTOGENETICAL CIRCULATION IS LIKELY
TO FOCUS ASCENT VERY STRONGLY ALONG THE EAST SLOPES AND OKANOGAN
HIGHLANDS THROUGH THE MORNING HOURS FRIDAY...BEFORE PUSHING EAST.
ADDITIONALLY...MODEL CROSS SECTIONS ACROSS THE AREA SUGGEST THAT
WHILE NEGATIVE EPV IS TOUGH TO COME BY...A RATHER IMPRESSIVE SWATH
OF THE UPWARD BRANCH OF THE FRONTOGENETICAL CIRCULATION IS ALSO
OVERLAID WITH STRONGLY TILTING THETA-E CONTOURS SUCH THAT THE
SLOPE OF THE THETA-E LINES NEARS AND/OR SURPASSES THAT OF THE
GEOSTROPHIC MOMENTUM CONTOURS. AS A RESULT...THE POTENTIAL IS
STILL THERE FOR SLANTWISE INSTABILITY BEING PRESENT AND THE FACT
THAT THE UPWARD BRANCH OF THE FRONTOGENETICAL CIRCULATION IS CO-
LOCATED WITH THE MODEL OMEGA MAXIMUM AS WELL AS IN THE -12C TO
-16C DENDRITIC GROWTH LAYER BODES WELL FOR STRONG VERTICAL MOTION
AS WELL AS EFFICIENT SNOW CRYSTAL FORMATION. THE ONLY REAL
QUESTION IS WHETHER THE LOW LEVEL WARM ADVECTION AHEAD OF THE
SYSTEM WILL BE STRONG ENOUGH TO BRING SNOW LEVELS UP TOO HIGH. IT
SEEMS THAT SNOW LEVELS FROM MODEL PROFILES FROM BOTH THE NAM AND
GFS INDICATE THAT THE HEADLINE CRITERIA SHOULD EASILY BE MET FOR
THE EAST SLOPES OF THE CASCADES AND A HEAVY SNOW WARNING HAS BEEN
HOISTED FOR THIS AS GENEROUS QPF COUPLED WITH 850 MB TEMPERATURES
A FEW DEGREES BELOW ZERO CELSIUS ON EVERY MODEL SHOULD ALLOW FOR
QUITE A SNOWFALL THERE. HOWEVER...FARTHER EAST...ITS NOT AS
CLEAR FOR NORTHERN IDAHO AND THE NORTHEASTERN MOUNTAINS AS THE NAM
INDICATES COLD ENOUGH PROFILES BUT THE GFS DOESNT. WHILE THE GFS
WAS A BIT WARMER THAN OTHER SOLUTIONS...THE NAM CONCENTRATED THE
BEST DYNAMICAL FORCING VIA FRONTOGENETICAL LIFT BASICALLY TO THE
SOUTH OF THE NORTHEAST MOUNTAINS AND NORTHERN IDAHO PANHANDLE AND
THEREFORE EVEN WITH COLDER PROFILES...WARNING SNOWFALL AMOUNTS
SEEM QUESTIONABLE. HOWEVER...THE GFS QPF WITH COOLER PROFILES
WOULD STILL SUPPORT WARNING SNOWFALL AMOUNTS ABOVE 5000 FEET...AND
WILL KEEP WITH THIS THINKING FOR NOW. IN THE LOWLANDS...IT SEEMS
CLEAR THAT STRONG ISENTROPIC ASCENT AND DEEP LAYER SATURATION
COUPLED WITH STRONG UPPER SUPPORT SHOULD ALLOW ABOUT A QUARTER TO
HALF AN INCH OF RAINFALL TO DROP IN MANY LOCATIONS. ALL IN
ALL...FRIDAY LOOKS TO BE A VERY ACTIVE DAY AS WINDS PER THE GFS
AND NAM TOP 50 KTS AT 850 MB IN THE WARM SECTOR SO GUSTY
CONDITIONS ARE LIKELY WHEREVER THE WARM SECTOR ACTUALLY EVENTUALLY
SETS UP.
AFTER FRIDAY...THINGS WIND DOWN WITH A COLD UPPER TROUGH SETTLING
OVERHEAD THROUGH SATURDAY. AS 500 MB TEMPERATURES DROP TOWARD -28
TO -30C...MID-LEVEL LAPSE RATES INCREASE AND SHOWERY PRECIPITATION
IS LIKELY TO BREAKOUT AGAIN SATURDAY WITH HELP FROM MODEST UPSLOPE
INTO MOUNTAIN AREAS ACROSS THE EASTERN AND NORTHERN CWA. THE COLD
CORE SHIFTS EASTWARD SWIFTING SATURDAY NIGHT AND IS REPLACED BY
VERY STRONG WARM ADVECTION AHEAD OF AN ADVANCING RIDGE. THE GFS
AND ECMWF HAVE BOTH BEEN VERY INSISTENT ON WARMING INTO NEXT
WEEK...AND THE 00Z CYCLE TONIGHT IS NO DIFFERENT. THE FORECAST
ACCURATELY REFLECTS THIS TREND AND HAS BEEN LITTLE CHANGED BEYOND
THE WEEKEND. /FRIES
&&
.AVIATION...POTENT EARLY SEASON STORM WILL SPREAD RAIN...MOUNTAIN
SNOW...AND LOCALLY LOW CEILINGS INTO THE INLAND NORTHWEST THURSDAY
MORNING. STRONG LOW PRESSURE OVER THE NORTHWESTERN WASHINGTON WILL
INDUCE UPSLOPE FLOW INTO THE EAST SLOPES OF THE CASCADES BY 15Z.
EXPECT MODERATE RAIN IN THE WENATCHEE AND OMAK AREAS THROUGH 20Z
WITH CEILINGS IN THE MVFR TO IFR RANGE UNTIL WESTERLY DOWNSLOPE
CONDITIONS BEGIN AROUND 21Z. WARM FRONTAL PRECIPITATION SHOULD BEGIN
BETWEEN 18Z AND 21Z FOR THE SPOKANE...PULLMAN...AND COEUR DALENE
TERMINALS. MVFR TO IFR CONDITIONS ARE EXPECTED THROUGH 03Z AS
PRECIPITATION FALLS INTO COOL AIR. /GKOCH
&&
.PRELIMINARY POINT TEMPS/POPS...
SPOKANE 46 39 48 37 50 36 / 100 40 100 30 40 20
COEUR DALENE 47 39 49 38 49 37 / 100 40 100 30 50 30
PULLMAN 49 41 52 35 51 37 / 60 50 100 30 50 30
LEWISTON 54 46 57 42 57 41 / 60 50 80 10 40 30
COLVILLE 49 38 45 34 50 35 / 100 90 100 40 50 20
SANDPOINT 46 40 46 38 48 37 / 100 90 100 50 60 20
KELLOGG 44 38 49 36 45 36 / 100 80 100 50 60 40
MOSES LAKE 54 40 55 37 58 36 / 80 50 100 10 20 10
WENATCHEE 48 39 52 38 56 39 / 90 50 100 10 10 10
OMAK 49 36 49 35 54 36 / 100 30 100 10 20 10
&&
.OTX WATCHES/WARNINGS/ADVISORIES...
ID...WINTER STORM WARNING FROM 11 AM THIS MORNING TO 10 PM PDT FRIDAY
ABOVE 5000 FEET FOR NORTHERN PANHANDLE.
WA...WINTER STORM WARNING FROM 6 AM THIS MORNING TO 3 PM PDT FRIDAY
ABOVE 3000 FEET FOR EAST SLOPES NORTHERN CASCADES.
WINTER STORM WARNING FROM 8 AM THIS MORNING TO 3 PM PDT FRIDAY
ABOVE 5000 FEET FOR OKANOGAN HIGHLANDS.
WINTER STORM WARNING FROM 9 AM THIS MORNING TO 10 PM PDT FRIDAY
ABOVE 5000 FEET FOR NORTHEAST MOUNTAINS.
&&Hazardous weather outlook, Oct 17, 2:49 PM PDT, 14 hours 6 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SPOKANE WA
249 PM PDT WED OCT 17 2007
IDZ001-WAZ037-038-042-182200-
NORTHERN PANHANDLE-NORTHEAST MOUNTAINS-OKANOGAN HIGHLANDS-
EAST SLOPES NORTHERN CASCADES-
INCLUDING THE CITIES OF...SANDPOINT...RATHDRUM...BONNERS FERRY...
PRIEST RIVER...COLVILLE...DEER PARK...CHEWELAH...NEWPORT...
KETTLE FALLS...REPUBLIC...INCHELIUM...LEAVENWORTH...MAZAMA...
TWISP...WINTHROP
249 PM PDT WED OCT 17 2007
THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTH
IDAHO...NORTH CENTRAL WASHINGTON AND NORTHEAST WASHINGTON.
THE FOLLOWING WATCHES WARNINGS OR ADVISORIES ARE CURRENTLY IN EFFECT
SNOW ADVISORY IN EFFECT FROM 6 AM TO 6 PM PDT THURSDAY ABOVE
3000 FEET FOR EAST SLOPES NORTH CASCADES
HEAVY SNOW WARNING IN EFFECT FROM 8 AM THURSDAY TO 3 PM PDT
FRIDAY ABOVE 5000 FEET FOR OKANOGAN HIGHLANDS
HEAVY SNOW WARNING IN EFFECT FROM 11 AM THURSDAY TO 10 PM PDT
FRIDAY ABOVE 5000 FEET FOR NORTH IDAHO PANHANDLE
HEAVY SNOW WARNING IN EFFECT FROM 9 AM THURSDAY TO 10 PM PDT
FRIDAY ABOVE 5000 FEET FOR NORTHEAST MOUNTAINS
PLEASE SEE THE FOLLOWING PRODUCTS FOR MORE INFORMATION.
SEAWSWOTX /WWUS46 KOTX/
.DAY ONE...THIS AFTERNOON AND TONIGHT
A WEAK SYSTEM WILL PASS THROUGH THE AREA THROUGH TONIGHT WITH NO
HAZARDOUS WEATHER EXPECTED.
.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY
A COUPLE STRONG SYSTEMS WILL IMPACT THE AREA THURSDAY AND FRIDAY.
SIGNIFICANT EARLY SEASON SNOW ACCUMULATIONS ARE LIKELY ABOVE 5000
FEET OM THE OKANOGAN HIGHLANDS...NORTHEAST MOUNTAINS...AND NORTH PANHANDLE.
MODERATE ACCUMULATIONS ARE ALSO LIKELY ON THURSDAY ABOVE 3000 FEET
ALONG THE EAST SLOPES OF THE NORTH WASHINGTON CASCADES.
IDZ002>004-026-027-WAZ031>036-041-043-044-182200-
COEUR DALENE 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-WENATCHEE AREA-OKANOGAN VALLEY-WATERVILLE PLATEAU-
INCLUDING THE CITIES OF...COEUR DALENE...POST FALLS...HAYDEN...
MOSCOW...ST. MARIES...KELLOGG...PINEHURST...OSBURN...WALLACE...
MULLAN...LEWISTON...KAMIAH...CRAIGMONT...NEZPERCE...WINCHESTER...
ANATONE...PEOLA...CLARKSTON...PULLMAN...MOSES LAKE...EPHRATA...
OTHELLO...QUINCY...RITZVILLE...COULEE DAM...ODESSA...
ELECTRIC CITY...WILBUR...GRAND COULEE...COULEE CITY...SPOKANE...
WENATCHEE...OMAK...OKANOGAN...BREWSTER...BRIDGEPORT...OROVILLE...
WATERVILLE...MANSFIELD
249 PM PDT WED OCT 17 2007
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...THIS AFTERNOON AND TONIGHT
A WEAK SYSTEM WILL PASS THROUGH THE AREA TODAY WITH NO HAZARDOUS WEATHER
EXPECTED.
.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY
A STRONG SYSTEM WILL IMPACT THE AREA ON THURSDAY...BRINGING RAIN
TO MOST VALLEY LOCATIONS AND SNOW IN THE MOUNTAINS WITH SNOW
LEVELS RISING FROM 4500-5000 FEET THURSDAY MORNING TO NEAR
5500-6000 FEET THURSDAY AFTERNOON AND EVENING. AS A SURFACE LOW
TRACKS NORTH INTO BRITISH COLUMBIA...WINDY CONDITIONS MAY DEVELOP
ESPECIALLY IN THE SPOKANE/COEUR DALENE AREAS...AND THE PALOUSE
THURSDAY EVENING. A SECOND SYSTEM WILL MOVE INTO THE AREA ON
FRIDAY...BRINGING ANOTHER ROUND OF VALLEY RAIN AND MOUNTAIN SNOW TO
THE AREA. WINDY CONDITIONS CAN ALSO BE EXPECTED ACROSS THE UPPER
COLUMBIA BASIN AND PALOUSE LATE FRIDAY MORNING THROUGH THE EARLY
EVENING.The office that day
Everything else NWS Spokane, WA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 18, 2:55 PM PDT | Wind Advisory | OTX | Benewah, Kootenai, Latah | 24 hr |
Nearby
Winter Storm Warnings in Washington, 2007Winter Storm Warnings in Idaho, 2007Every winter storm warning in 2007
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.