Alert archive / Washington / High Wind Watches in 2015
High Wind Watch 1, NWS Spokane, WA
NWS Spokane, WA issued this high wind watch at Aug 27, 2015, 3:30 PM PDT for 12 counties in Washington; 8 counties in Idaho. It took effect at Aug 29, 2015, 9:00 AM PDT. It was in force for 59 min.
The area
The counties it named.
The facts
- Issued
- Aug 27, 2015, 3:30 PM PDT (22:30 UTC)
- In effect from
- Aug 29, 2015, 9:00 AM PDT
- Expired
- Aug 29, 2015, 9:59 AM PDT
- In force
- 59 min
- Issued by
- NWS Spokane, WA
Counties Benewah County, ID, Bonner County, ID, Boundary County, ID, Kootenai County, ID, Latah County, ID, Lewis County, ID, Nez Perce County, ID, Shoshone County, ID, Adams County, WA, Asotin County, WA, Douglas County, WA, Ferry County, WA, Garfield County, WA, Grant County, WA, Lincoln County, WA, Okanogan County, WA, Pend Oreille County, WA, Spokane County, WA, Stevens County, WA, Whitman County, WA
The radar
The Spokane radar (KOTX), 24 km from the middle of the area, began a volume at 22:31 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Spokane, WA (KOTX), launched 12:00Z, 10.5 hours before the alert went out and 92 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
- 3029 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- -12 m²/s²
- 0-3 km storm-relative helicity
- 32 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
272 WWUS76 KOTX 272230 NPWOTX URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE SPOKANE WA 330 PM PDT THU AUG 27 2015 ...STRONG COLD FRONT TO PRODUCE HIGH WINDS AND BLOWING DUST ON SATURDAY... .HIGH WINDS WILL BE POSSIBLE AS A COLD FRONT PUSHES ACROSS THE REGION ON SATURDAY. STRONGEST GUSTS WITH DAMAGING WINDS WILL BE POSSIBLE LATE SATURDAY MORNING INTO SATURDAY AFTERNOON. THE WINDY CONDITIONS ARE ALSO EXPECTED TO PRODUCE AREAS OF BLOWING DUST WITH REDUCED VISIBILITY. IDZ001>004-026-027-WAZ031>038-043-044-280700- /O.NEW.KOTX.HW.A.0001.150829T1600Z-150830T0300Z/ NORTHERN PANHANDLE-COEUR D'ALENE AREA-IDAHO PALOUSE- CENTRAL PANHANDLE MOUNTAINS-LEWISTON AREA- LEWIS AND SOUTHERN NEZ PERCE COUNTIES-NORTHEAST BLUE MOUNTAINS- LOWER GARFIELD AND ASOTIN COUNTIES-WASHINGTON PALOUSE- MOSES LAKE AREA-UPPER COLUMBIA BASIN-SPOKANE AREA- NORTHEAST MOUNTAINS-OKANOGAN HIGHLANDS-OKANOGAN VALLEY- WATERVILLE PLATEAU- 330 PM PDT THU AUG 27 2015 ...HIGH WIND WATCH IN EFFECT FROM SATURDAY MORNING THROUGH SATURDAY EVENING... THE NATIONAL WEATHER SERVICE IN SPOKANE HAS ISSUED A HIGH WIND WATCH...WHICH IS IN EFFECT FROM SATURDAY MORNING THROUGH SATURDAY EVENING. * WINDS...SOUTHWEST 25 TO 35 MPH WITH GUSTS TO BETWEEN 50 TO 60 MPH...EXCEPT GUSTS UP TO 60 TO 70 MPH POSSIBLE IN THE MOUNTAINS. * TIMING...WINDS WILL INCREASE SATURDAY MORNING AND PEAK BY THE EARLY AFTERNOON HOURS. WINDS WILL RELAX SATURDAY EVENING. * IMPACTS...HIGH WINDS MAY RESULT IN IN TOPPLED TREES AND DOWNED POWER LINES. STRONG CROSS WINDS WILL RESULT IN HAZARDOUS TRAVEL FOR HIGH PROFILE VEHICLES...ESPECIALLY ALONG INTERSTATE 90 AND ALONG HIGHWAY 2. WINDS WILL ALSO PRODUCE BLOWING DUST ACROSS THE BASIN INTO THE SURROUNDING VALLEYS. BLOWING DUST MAY RESULT IN VISIBILITY REDUCED TO ONE QUARTER MILE AT TIMES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A HIGH WIND WATCH MEANS THERE IS THE POTENTIAL FOR A HAZARDOUS HIGH WIND EVENT. SUSTAINED WINDS OF AT LEAST 40 MPH...OR GUSTS OF 58 MPH OR STRONGER MAY OCCUR. CONTINUE TO MONITOR THE LATEST FORECASTS. && $$
6 follow-up statements
747 WWUS76 KOTX 280400 NPWOTX URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE SPOKANE WA 900 PM PDT THU AUG 27 2015 ...STRONG COLD FRONT TO PRODUCE HIGH WINDS AND BLOWING DUST ON SATURDAY... .HIGH WINDS WILL BE POSSIBLE AS A COLD FRONT PUSHES ACROSS THE REGION ON SATURDAY. STRONGEST GUSTS WITH DAMAGING WINDS WILL BE POSSIBLE LATE SATURDAY MORNING INTO SATURDAY AFTERNOON. THE WINDY CONDITIONS ARE ALSO EXPECTED TO PRODUCE AREAS OF BLOWING DUST WITH REDUCED VISIBILITY. IDZ001>004-026-027-WAZ031>038-043-044-281500- /O.CON.KOTX.HW.A.0001.150829T1600Z-150830T0300Z/ NORTHERN PANHANDLE-COEUR D'ALENE AREA-IDAHO PALOUSE- CENTRAL PANHANDLE MOUNTAINS-LEWISTON AREA- LEWIS AND SOUTHERN NEZ PERCE COUNTIES-NORTHEAST BLUE MOUNTAINS- LOWER GARFIELD AND ASOTIN COUNTIES-WASHINGTON PALOUSE- MOSES LAKE AREA-UPPER COLUMBIA BASIN-SPOKANE AREA- NORTHEAST MOUNTAINS-OKANOGAN HIGHLANDS-OKANOGAN VALLEY- WATERVILLE PLATEAU- 900 PM PDT THU AUG 27 2015 ...HIGH WIND WATCH REMAINS IN EFFECT FROM SATURDAY MORNING THROUGH SATURDAY EVENING... * WINDS...SOUTHWEST 25 TO 35 MPH WITH GUSTS TO BETWEEN 50 TO 60 MPH...EXCEPT GUSTS UP TO 60 TO 70 MPH POSSIBLE IN THE MOUNTAINS. * TIMING...WINDS WILL INCREASE SATURDAY MORNING AND PEAK BY THE EARLY AFTERNOON HOURS. WINDS WILL RELAX SATURDAY EVENING. * IMPACTS...HIGH WINDS MAY RESULT IN IN TOPPLED TREES AND DOWNED POWER LINES. STRONG CROSS WINDS WILL RESULT IN HAZARDOUS TRAVEL FOR HIGH PROFILE VEHICLES...ESPECIALLY ALONG INTERSTATE 90 AND ALONG HIGHWAY 2. WINDS WILL ALSO PRODUCE BLOWING DUST ACROSS THE BASIN INTO THE SURROUNDING VALLEYS. BLOWING DUST MAY RESULT IN VISIBILITY REDUCED TO ONE QUARTER MILE AT TIMES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A HIGH WIND WATCH MEANS THERE IS THE POTENTIAL FOR A HAZARDOUS HIGH WIND EVENT. SUSTAINED WINDS OF AT LEAST 40 MPH...OR GUSTS OF 58 MPH OR STRONGER MAY OCCUR. CONTINUE TO MONITOR THE LATEST FORECASTS. && $$
790 WWUS76 KOTX 281330 NPWOTX URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE SPOKANE WA 630 AM PDT FRI AUG 28 2015 ...STRONG COLD FRONT TO PRODUCE HIGH WINDS AND BLOWING DUST ON SATURDAY... .HIGH WINDS WILL BE POSSIBLE AS A COLD FRONT PUSHES ACROSS THE REGION ON SATURDAY. DAMAGING WINDS WILL BE POSSIBLE LATE SATURDAY MORNING INTO SATURDAY AFTERNOON. THE WINDY CONDITIONS ARE ALSO EXPECTED TO PRODUCE AREAS OF BLOWING DUST WITH REDUCED VISIBILITY. IDZ001>004-026-027-WAZ031>038-043-044-282300- /O.CON.KOTX.HW.A.0001.150829T1600Z-150830T0300Z/ NORTHERN PANHANDLE-COEUR D'ALENE AREA-IDAHO PALOUSE- CENTRAL PANHANDLE MOUNTAINS-LEWISTON AREA- LEWIS AND SOUTHERN NEZ PERCE COUNTIES-NORTHEAST BLUE MOUNTAINS- LOWER GARFIELD AND ASOTIN COUNTIES-WASHINGTON PALOUSE- MOSES LAKE AREA-UPPER COLUMBIA BASIN-SPOKANE AREA- NORTHEAST MOUNTAINS-OKANOGAN HIGHLANDS-OKANOGAN VALLEY- WATERVILLE PLATEAU- 630 AM PDT FRI AUG 28 2015 ...HIGH WIND WATCH REMAINS IN EFFECT FROM SATURDAY MORNING THROUGH SATURDAY EVENING... * WINDS...SOUTHWEST 25 TO 35 MPH WITH GUSTS TO BETWEEN 50 TO 60 MPH...EXCEPT GUSTS UP TO 60 TO 70 MPH POSSIBLE IN THE MOUNTAINS. * TIMING...WINDS WILL INCREASE SATURDAY MORNING AND PEAK BY THE EARLY AFTERNOON HOURS. WINDS WILL RELAX LATE SATURDAY EVENING. * IMPACTS...HIGH WINDS MAY RESULT IN IN TOPPLED TREES AND DOWNED POWER LINES. STRONG CROSS WINDS WILL RESULT IN HAZARDOUS TRAVEL FOR HIGH PROFILE VEHICLES...ESPECIALLY ALONG INTERSTATE 90 AND ALONG HIGHWAY 2. WINDS WILL ALSO PRODUCE BLOWING DUST ACROSS THE BASIN INTO THE SURROUNDING VALLEYS. BLOWING DUST MAY RESULT IN VISIBILITY REDUCED TO ONE QUARTER MILE AT TIMES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A HIGH WIND WATCH MEANS THERE IS THE POTENTIAL FOR A HAZARDOUS HIGH WIND EVENT. SUSTAINED WINDS OF AT LEAST 40 MPH...OR GUSTS OF 58 MPH OR STRONGER MAY OCCUR. CONTINUE TO MONITOR THE LATEST FORECASTS. && $$
832 WWUS76 KOTX 282157 NPWOTX URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE SPOKANE WA 257 PM PDT FRI AUG 28 2015 ...STRONG COLD FRONT TO PRODUCE HIGH WINDS AND BLOWING DUST ON SATURDAY... .HIGH WINDS WILL BE POSSIBLE AS A COLD FRONT PUSHES ACROSS THE REGION ON SATURDAY. DAMAGING WINDS WILL BE POSSIBLE LATE SATURDAY MORNING INTO SATURDAY AFTERNOON. THE WINDY CONDITIONS ARE ALSO EXPECTED TO PRODUCE AREAS OF BLOWING DUST WITH REDUCED VISIBILITY. IDZ001>004-026-027-WAZ031>038-043-044-291530- /O.CON.KOTX.HW.A.0001.150829T1600Z-150830T0300Z/ NORTHERN PANHANDLE-COEUR D'ALENE AREA-IDAHO PALOUSE- CENTRAL PANHANDLE MOUNTAINS-LEWISTON AREA- LEWIS AND SOUTHERN NEZ PERCE COUNTIES-NORTHEAST BLUE MOUNTAINS- LOWER GARFIELD AND ASOTIN COUNTIES-WASHINGTON PALOUSE- MOSES LAKE AREA-UPPER COLUMBIA BASIN-SPOKANE AREA- NORTHEAST MOUNTAINS-OKANOGAN HIGHLANDS-OKANOGAN VALLEY- WATERVILLE PLATEAU- 257 PM PDT FRI AUG 28 2015 ...HIGH WIND WATCH REMAINS IN EFFECT FROM SATURDAY MORNING THROUGH SATURDAY EVENING... * WINDS...SOUTHWEST 25 TO 35 MPH WITH GUSTS OF 50 TO 65 MPH. * TIMING...WINDS WILL INCREASE SATURDAY MORNING AND PEAK BY THE EARLY AFTERNOON HOURS. WINDS WILL RELAX LATE SATURDAY EVENING. * IMPACTS...HIGH WINDS MAY RESULT IN IN TOPPLED TREES AND DOWNED POWER LINES. STRONG CROSS WINDS WILL RESULT IN HAZARDOUS TRAVEL FOR HIGH PROFILE VEHICLES...ESPECIALLY ALONG INTERSTATE 90 AND ALONG HIGHWAY 2. WINDS WILL ALSO PRODUCE BLOWING DUST ACROSS THE BASIN INTO THE SURROUNDING VALLEYS. BLOWING DUST MAY RESULT IN VISIBILITY REDUCED TO ONE QUARTER MILE AT TIMES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A HIGH WIND WATCH MEANS THERE IS THE POTENTIAL FOR A HAZARDOUS HIGH WIND EVENT. SUSTAINED WINDS OF AT LEAST 40 MPH...OR GUSTS OF 58 MPH OR STRONGER MAY OCCUR. CONTINUE TO MONITOR THE LATEST FORECASTS. && $$
731 WWUS76 KOTX 291517 NPWOTX URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE SPOKANE WA 817 AM PDT SAT AUG 29 2015 ...STRONG COLD FRONT TO PRODUCE VERY WINDY CONDITIONS AND BLOWING DUST TODAY... .A STRONG COLD FRONT WILL PRODUCE STRONG WINDS ACROSS THE REGION LATE THIS MORNING INTO THE EARLY EVENING HOURS. SOME WIND GUSTS MAY BE STRONG ENOUGH TO RESULT IN HAZARDOUS DRIVING CONDITIONS FOR HIGH PROFILE VEHICLES AND CAUSE ISOLATED TREE DAMAGE AND POWER OUTAGES. THE WINDY CONDITIONS ARE ALSO EXPECTED TO PRODUCE AREAS OF BLOWING DUST WITH REDUCED VISIBILITY. IDZ001>004-026-027-WAZ031-032-037-038-043-292330- /O.UPG.KOTX.HW.A.0001.150829T1600Z-150830T0300Z/ /O.NEW.KOTX.WI.Y.0008.150829T1600Z-150830T0300Z/ 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-NORTHEAST MOUNTAINS- OKANOGAN HIGHLANDS-OKANOGAN VALLEY- 817 AM PDT SAT AUG 29 2015 ...WIND ADVISORY IN EFFECT UNTIL 8 PM PDT THIS EVENING... THE NATIONAL WEATHER SERVICE IN SPOKANE HAS ISSUED A WIND ADVISORY...WHICH IS IN EFFECT UNTIL 8 PM PDT THIS EVENING. THE HIGH WIND WATCH IS NO LONGER IN EFFECT. * WINDS...SOUTHWEST 25 TO 35 MPH WITH GUSTS BETWEEN 40 TO 50 MPH. MOUNTAIN TOP WINDS ARE EXPECTED TO GUST TO BETWEEN 50 AND 60 MPH WITH ISOLATED GUSTS UP TO 65 MPH POSSIBLE. * TIMING...WINDS WILL INCREASE THIS MORNING AND PEAK BY THE EARLY AFTERNOON HOURS. WINDS WILL RELAX LATE SATURDAY EVENING. * IMPACTS...STRONG WINDS MAY RESULT IN IN TOPPLED TREES AND DOWNED POWER LINES. LIGHT WEIGHT OBJECTS WILL BE BLOWN AROUND IF NOT SECURED. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND ADVISORY MEANS THAT WINDS OF 30 TO 40 MPH ARE EXPECTED. WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES. USE EXTRA CAUTION. && $$ WAZ041-042-292330- /O.NEW.KOTX.WI.Y.0008.150829T1600Z-150830T0300Z/ WENATCHEE AREA-EAST SLOPES NORTHERN CASCADES- 817 AM PDT SAT AUG 29 2015 ...WIND ADVISORY IN EFFECT UNTIL 8 PM PDT THIS EVENING... THE NATIONAL WEATHER SERVICE IN SPOKANE HAS ISSUED A WIND ADVISORY...WHICH IS IN EFFECT UNTIL 8 PM PDT THIS EVENING. * WINDS...SOUTHWEST 15 TO 25 MPH WITH GUSTS BETWEEN 35 TO 45 MPH IN THE VALLEYS....EXCEPT 25 TO 35 MPH WITH GUSTS BETWEEN 45 AND 55 MPH IN THE MOUNTAINS. * TIMING...WINDS WILL INCREASE THIS MORNING AND PEAK BY THE EARLY AFTERNOON HOURS. WINDS WILL RELAX LATE SATURDAY EVENING. * IMPACTS...STRONG WINDS MAY RESULT IN IN TOPPLED TREES AND DOWNED POWER LINES. LIGHT WEIGHT OBJECTS WILL BE BLOWN AROUND IF NOT SECURED. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND ADVISORY MEANS THAT WINDS OF 30 TO 40 MPH ARE EXPECTED. WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES. USE EXTRA CAUTION. && $$ WAZ033>036-044-292330- /O.CON.KOTX.HW.A.0001.150829T1600Z-150830T0300Z/ WASHINGTON PALOUSE-MOSES LAKE AREA-UPPER COLUMBIA BASIN- SPOKANE AREA-WATERVILLE PLATEAU- 817 AM PDT SAT AUG 29 2015 ...HIGH WIND WATCH REMAINS IN EFFECT UNTIL 8 PM PDT THIS EVENING... * WINDS...SOUTHWEST 25 TO 35 MPH WITH GUSTS BETWEEN 50 AND 60 MPH. * TIMING...WINDS WILL INCREASE THIS MORNING AND PEAK BY THE EARLY AFTERNOON HOURS. WINDS WILL RELAX LATE SATURDAY EVENING. * IMPACTS...HIGH WINDS MAY RESULT IN IN TOPPLED TREES AND DOWNED POWER LINES. STRONG CROSS WINDS WILL RESULT IN HAZARDOUS TRAVEL FOR HIGH PROFILE VEHICLES...ESPECIALLY ALONG INTERSTATE 90 AND ALONG HIGHWAY 2. WINDS WILL ALSO PRODUCE BLOWING DUST ACROSS THE BASIN INTO THE SURROUNDING VALLEYS. BLOWING DUST MAY RESULT IN VISIBILITY REDUCED TO ONE QUARTER MILE AT TIMES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A HIGH WIND WATCH MEANS THERE IS THE POTENTIAL FOR A HAZARDOUS HIGH WIND EVENT. SUSTAINED WINDS OF AT LEAST 40 MPH...OR GUSTS OF 58 MPH OR STRONGER MAY OCCUR. CONTINUE TO MONITOR THE LATEST FORECASTS. && $$
487 WWUS76 KOTX 291619 NPWOTX URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE SPOKANE WA 919 AM PDT SAT AUG 29 2015 ...STRONG COLD FRONT TO PRODUCE VERY WINDY CONDITIONS AND BLOWING DUST TODAY... .A STRONG COLD FRONT WILL PRODUCE STRONG WINDS ACROSS THE REGION LATE THIS MORNING INTO THE EARLY EVENING HOURS. SOME WIND GUSTS MAY BE STRONG ENOUGH TO RESULT IN HAZARDOUS DRIVING CONDITIONS FOR HIGH PROFILE VEHICLES AND CAUSE ISOLATED TREE DAMAGE AND POWER OUTAGES. THE WINDY CONDITIONS ARE ALSO EXPECTED TO PRODUCE AREAS OF BLOWING DUST WITH REDUCED VISIBILITY. WAZ033>035-300030- /O.UPG.KOTX.HW.A.0001.000000T0000Z-150830T0300Z/ /O.NEW.KOTX.DS.W.0002.150829T1619Z-150830T0000Z/ WASHINGTON PALOUSE-MOSES LAKE AREA-UPPER COLUMBIA BASIN- 919 AM PDT SAT AUG 29 2015 ...DUST STORM WARNING IN EFFECT UNTIL 5 PM PDT THIS AFTERNOON... THE NATIONAL WEATHER SERVICE IN SPOKANE HAS ISSUED A DUST STORM WARNING...WHICH IS IN EFFECT UNTIL 5 PM PDT THIS AFTERNOON. THE HIGH WIND WATCH IS NO LONGER IN EFFECT. * VISIBILITIES...DOWN TO ONE QUARTER MILE AT TIMES. ISOLATED VISIBILITY TO NEAR ZERO WILL BE POSSIBLE. * WINDS...SOUTHWEST 25 TO 35 MPH WITH GUSTS UP TO 55 MPH. * TIMING...WINDS WILL INCREASE THIS MORNING AND PEAK BY THE EARLY AFTERNOON HOURS. WORST VISIBILITY DUE TO THE BLOWING DUST IS EXPECTED TO OCCUR BETWEEN THE HOURS OF 1000 AM TO 300 PM TODAY. * IMPACTS...STRONG WINDS ARE EXPECTED TO RESULT IN WIDESPREAD BLOWING DUST. DECREASED VISIBILITY IS EXPECTED TO RESULT IN TREACHEROUS TRAVEL CONDITIONS. THIS WILL INCLUDE INTERSTATE 90 BETWEEN VANTAGE AND SPRAGUE...HIGHWAY 395 BETWEEN RITZVILLE AND SOUTH TOWARD THE TRI-CITIES AND HIGHWAY 195 ON THE PALOUSE. STRONG CROSS WINDS WILL ALSO RESULT IN DIFFICULT DRIVING CONDITIONS FRO HIGH PROFILE VEHICLES. STRONGEST CROSS WINDS ARE EXPECTED ALONG INTERSTATE 90. PRECAUTIONARY/PREPAREDNESS ACTIONS... A DUST STORM WARNING MEANS SEVERELY LIMITED VISIBILITIES ARE EXPECTED WITH BLOWING DUST. TRAVEL COULD BECOME EXTREMELY DANGEROUS. PERSONS WITH RESPIRATORY PROBLEMS SHOULD MAKE PREPARATIONS TO STAY INDOORS UNTIL THE STORM PASSES. && $$ WAZ041-042-300030- /O.CON.KOTX.WI.Y.0008.000000T0000Z-150830T0300Z/ WENATCHEE AREA-EAST SLOPES NORTHERN CASCADES- 919 AM PDT SAT AUG 29 2015 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 8 PM PDT THIS EVENING... * WINDS...SOUTHWEST 15 TO 25 MPH WITH GUSTS BETWEEN 35 TO 45 MPH IN THE VALLEYS....EXCEPT 25 TO 35 MPH WITH GUSTS BETWEEN 45 AND 55 MPH IN THE MOUNTAINS. * TIMING...WINDS WILL INCREASE THIS MORNING AND PEAK BY THE EARLY AFTERNOON HOURS. WINDS WILL RELAX LATE SATURDAY EVENING. * IMPACTS...STRONG WINDS MAY RESULT IN IN TOPPLED TREES AND DOWNED POWER LINES. LIGHT WEIGHT OBJECTS WILL BE BLOWN AROUND IF NOT SECURED. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND ADVISORY MEANS THAT WINDS OF 30 TO 40 MPH ARE EXPECTED. WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES. USE EXTRA CAUTION. && $$ IDZ001>004-026-027-WAZ031-032-037-038-043-300030- /O.CON.KOTX.WI.Y.0008.000000T0000Z-150830T0300Z/ NORTHERN PANHANDLE-COEUR D'ALENE AREA-IDAHO PALOUSE- CENTRAL PANHANDLE MOUNTAINS-LEWISTON AREA- LEWIS AND SOUTHERN NEZ PERCE COUNTIES-NORTHEAST BLUE MOUNTAINS- LOWER GARFIELD AND ASOTIN COUNTIES-NORTHEAST MOUNTAINS- OKANOGAN HIGHLANDS-OKANOGAN VALLEY- 919 AM PDT SAT AUG 29 2015 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 8 PM PDT THIS EVENING... * WINDS...SOUTHWEST 25 TO 35 MPH WITH GUSTS BETWEEN 40 TO 50 MPH. MOUNTAIN TOP WINDS ARE EXPECTED TO GUST TO BETWEEN 50 AND 60 MPH WITH ISOLATED GUSTS UP TO 65 MPH POSSIBLE. * TIMING...WINDS WILL INCREASE THIS MORNING AND PEAK BY THE EARLY AFTERNOON HOURS. WINDS WILL RELAX LATE SATURDAY EVENING. * IMPACTS...STRONG WINDS MAY RESULT IN IN TOPPLED TREES AND DOWNED POWER LINES. LIGHT WEIGHT OBJECTS WILL BE BLOWN AROUND IF NOT SECURED. BLOWING DUST MAY ALSO REDUCE VISIBILITY TO DOWN TO 1 MILE AT TIMES...ESPECIALLY FOR AREAS AROUND THE COLUMBIA BASIN. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND ADVISORY MEANS THAT WINDS OF 30 TO 40 MPH ARE EXPECTED. WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES. USE EXTRA CAUTION. && $$ WAZ036-044-300030- /O.CON.KOTX.HW.A.0001.000000T0000Z-150830T0300Z/ SPOKANE AREA-WATERVILLE PLATEAU- 919 AM PDT SAT AUG 29 2015 ...HIGH WIND WATCH REMAINS IN EFFECT UNTIL 8 PM PDT THIS EVENING... * WINDS...SOUTHWEST 25 TO 35 MPH WITH GUSTS BETWEEN 50 AND 60 MPH. * TIMING...WINDS WILL INCREASE THIS MORNING AND PEAK BY THE EARLY AFTERNOON HOURS. WINDS WILL RELAX LATE SATURDAY EVENING. * IMPACTS...HIGH WINDS MAY RESULT IN IN TOPPLED TREES AND DOWNED POWER LINES. STRONG CROSS WINDS WILL RESULT IN HAZARDOUS TRAVEL FOR HIGH PROFILE VEHICLES...ESPECIALLY ALONG INTERSTATE 90 AND ALONG HIGHWAY 2. WINDS WILL ALSO PRODUCE BLOWING DUST ACROSS THE BASIN INTO THE SURROUNDING VALLEYS. BLOWING DUST MAY RESULT IN VISIBILITY REDUCED TO ONE QUARTER MILE AT TIMES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A HIGH WIND WATCH MEANS THERE IS THE POTENTIAL FOR A HAZARDOUS HIGH WIND EVENT. SUSTAINED WINDS OF AT LEAST 40 MPH...OR GUSTS OF 58 MPH OR STRONGER MAY OCCUR. CONTINUE TO MONITOR THE LATEST FORECASTS. && $$
220 WWUS76 KOTX 291659 NPWOTX URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE SPOKANE WA 959 AM PDT SAT AUG 29 2015 ...STRONG COLD FRONT TO PRODUCE VERY WINDY CONDITIONS AND BLOWING DUST TODAY... .A STRONG COLD FRONT WILL PRODUCE STRONG WINDS ACROSS THE REGION LATE THIS MORNING INTO THE EARLY EVENING HOURS. SOME WIND GUSTS MAY BE STRONG ENOUGH TO RESULT IN HAZARDOUS DRIVING CONDITIONS FOR HIGH PROFILE VEHICLES AND CAUSE ISOLATED TREE DAMAGE AND POWER OUTAGES. THE WINDY CONDITIONS ARE ALSO EXPECTED TO PRODUCE AREAS OF BLOWING DUST WITH REDUCED VISIBILITY. WAZ036-044-300100- /O.UPG.KOTX.HW.A.0001.000000T0000Z-150830T0300Z/ /O.EXA.KOTX.DS.W.0002.000000T0000Z-150830T0000Z/ SPOKANE AREA-WATERVILLE PLATEAU- 959 AM PDT SAT AUG 29 2015 ...DUST STORM WARNING IN EFFECT UNTIL 5 PM PDT THIS AFTERNOON... THE NATIONAL WEATHER SERVICE IN SPOKANE HAS ISSUED A DUST STORM WARNING...WHICH IS IN EFFECT UNTIL 5 PM PDT THIS AFTERNOON. THE HIGH WIND WATCH IS NO LONGER IN EFFECT. * VISIBILITIES...DOWN TO ONE QUARTER MILE AT TIMES. ISOLATED VISIBILITY TO NEAR ZERO WILL BE POSSIBLE. * WINDS...SOUTHWEST 25 TO 35 MPH WITH GUSTS UP TO 55 MPH. * TIMING...WINDS WILL INCREASE THIS MORNING AND PEAK BY THE EARLY AFTERNOON HOURS. WORST VISIBILITY DUE TO THE BLOWING DUST IS EXPECTED TO OCCUR BETWEEN THE HOURS OF 1000 AM TO 300 PM TODAY. * IMPACTS...STRONG WINDS ARE EXPECTED TO RESULT IN WIDESPREAD BLOWING DUST. DECREASED VISIBILITY IS EXPECTED TO RESULT IN TREACHEROUS TRAVEL CONDITIONS. THIS WILL INCLUDE INTERSTATE 90 BETWEEN SPRAGUE AND LIBERTY LAKE...HIGHWAY 2 BETWEEN SPOKANE AND DAVENPORT AND ON THE WATERVILLE PLATEAU...AND HIGHWAY 195 FROM SPOKANE DOWN TO THE PALOUSE. STRONG CROSS WINDS WILL ALSO RESULT IN DIFFICULT DRIVING CONDITIONS FOR HIGH PROFILE VEHICLES. STRONGEST CROSS WINDS ARE EXPECTED ALONG HIGHWAY 2. TOPPLED TREES AND POWER LINE DAMAGE MAY ALSO BE POSSIBLE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A DUST STORM WARNING MEANS SEVERELY LIMITED VISIBILITIES ARE EXPECTED WITH BLOWING DUST. TRAVEL COULD BECOME EXTREMELY DANGEROUS. PERSONS WITH RESPIRATORY PROBLEMS SHOULD MAKE PREPARATIONS TO STAY INDOORS UNTIL THE STORM PASSES. && $$ WAZ033>035-300000- /O.CON.KOTX.DS.W.0002.000000T0000Z-150830T0000Z/ WASHINGTON PALOUSE-MOSES LAKE AREA-UPPER COLUMBIA BASIN- 959 AM PDT SAT AUG 29 2015 ...DUST STORM WARNING REMAINS IN EFFECT UNTIL 5 PM PDT THIS AFTERNOON... * VISIBILITIES...DOWN TO ONE QUARTER MILE AT TIMES. ISOLATED VISIBILITY TO NEAR ZERO WILL BE POSSIBLE. * WINDS...SOUTHWEST 25 TO 35 MPH WITH GUSTS UP TO 55 MPH. * TIMING...WINDS WILL INCREASE THIS MORNING AND PEAK BY THE EARLY AFTERNOON HOURS. WORST VISIBILITY DUE TO THE BLOWING DUST IS EXPECTED TO OCCUR BETWEEN THE HOURS OF 1000 AM TO 300 PM TODAY. * IMPACTS...STRONG WINDS ARE EXPECTED TO RESULT IN WIDESPREAD BLOWING DUST. DECREASED VISIBILITY IS EXPECTED TO RESULT IN TREACHEROUS TRAVEL CONDITIONS. THIS WILL INCLUDE INTERSTATE 90 BETWEEN VANTAGE AND SPRAGUE...HIGHWAY 395 BETWEEN RITZVILLE AND SOUTH TOWARD THE TRI-CITIES...HIGHWAY 195 ON THE PALOUSE AND HIGHWAY 2 BETWEEN DAVENPORT TO COULEE CITY. STRONG CROSS WINDS WILL ALSO RESULT IN DIFFICULT DRIVING CONDITIONS FOR HIGH PROFILE VEHICLES. STRONGEST CROSS WINDS ARE EXPECTED ALONG INTERSTATE 90. TOPPLED TREES AND POWER LINE DAMAGE MAY ALSO BE POSSIBLE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A DUST STORM WARNING MEANS SEVERELY LIMITED VISIBILITIES ARE EXPECTED WITH BLOWING DUST. TRAVEL COULD BECOME EXTREMELY DANGEROUS. PERSONS WITH RESPIRATORY PROBLEMS SHOULD MAKE PREPARATIONS TO STAY INDOORS UNTIL THE STORM PASSES. && $$ WAZ041-042-300100- /O.CON.KOTX.WI.Y.0008.000000T0000Z-150830T0300Z/ WENATCHEE AREA-EAST SLOPES NORTHERN CASCADES- 959 AM PDT SAT AUG 29 2015 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 8 PM PDT THIS EVENING... * WINDS...SOUTHWEST 15 TO 25 MPH WITH GUSTS BETWEEN 35 TO 45 MPH IN THE VALLEYS....EXCEPT 25 TO 35 MPH WITH GUSTS BETWEEN 45 AND 55 MPH IN THE MOUNTAINS. * TIMING...WINDS WILL INCREASE THIS MORNING AND PEAK BY THE EARLY AFTERNOON HOURS. WINDS WILL RELAX LATE SATURDAY EVENING. * IMPACTS...STRONG WINDS MAY RESULT IN IN TOPPLED TREES AND DOWNED POWER LINES. LIGHT WEIGHT OBJECTS WILL BE BLOWN AROUND IF NOT SECURED. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND ADVISORY MEANS THAT WINDS OF 30 TO 40 MPH ARE EXPECTED. WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES. USE EXTRA CAUTION. && $$ IDZ001>004-026-027-WAZ031-032-037-038-043-300100- /O.CON.KOTX.WI.Y.0008.000000T0000Z-150830T0300Z/ 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-NORTHEAST MOUNTAINS- OKANOGAN HIGHLANDS-OKANOGAN VALLEY- 959 AM PDT SAT AUG 29 2015 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 8 PM PDT THIS EVENING... * WINDS...SOUTHWEST 25 TO 35 MPH WITH GUSTS BETWEEN 40 TO 50 MPH. MOUNTAIN TOP WINDS ARE EXPECTED TO GUST TO BETWEEN 50 AND 60 MPH WITH ISOLATED GUSTS UP TO 65 MPH POSSIBLE. * TIMING...WINDS WILL INCREASE THIS MORNING AND PEAK BY THE EARLY AFTERNOON HOURS. WINDS WILL RELAX LATE SATURDAY EVENING. * IMPACTS...STRONG WINDS MAY RESULT IN IN TOPPLED TREES AND DOWNED POWER LINES. LIGHT WEIGHT OBJECTS WILL BE BLOWN AROUND IF NOT SECURED. BLOWING DUST MAY ALSO REDUCE VISIBILITY TO DOWN TO 1 MILE AT TIMES...ESPECIALLY FOR AREAS AROUND THE COLUMBIA BASIN. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND ADVISORY MEANS THAT WINDS OF 30 TO 40 MPH ARE EXPECTED. WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES. USE EXTRA CAUTION. && $$
What forecasters said that day
The local office's own words before this high wind watch 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 high wind watch went out at Aug 27, 2:52 PM PDT, 38 minutes earlier.
Area forecast discussion, Aug 27, 2:52 PM PDT, 38 minutes before
Area Forecast Discussion
National Weather Service Spokane WA
252 PM PDT THU AUG 27 2015
.SYNOPSIS...
A cold front will approach the region tonight through Friday
night. This will result in breezy conditions Friday afternoon with
any showers expected to remain in the Cascades. Cold front passage
on Saturday will bring the potential for high winds. This will
create a situation for blowing dust with reduced visibility. Some
areas may also experience toppled trees and downed power lines. A
cooler and occasionally breezy regime with some shower activity
will persist through the next week.
&&
.DISCUSSION...
Tonight through Friday night: The region will be sandwiched
between a deep closed upper level low pressure system out at
140W/40N in the eastern Pacific and a ridge of higher pressure
over the Rocky Mtns. This will keep the region under broad
southwest flow. Satellite imagery does show a batch of moisture
pumping up on the eastern flank of the upper low, but much of this
is expected to remain west of the Cascade Mtns. The east slopes of
the northern Cascades will see an increasing chance for showers on
Friday with the best chances remaining near the crest. The rest of
the region will see increasing high clouds. Pre-frontal winds will
increase on Friday as well. This will result in breezy southerly
winds, especially up the Okanogan Valley. Temperatures will be a
little cooler compared to today with the increasing cloud cover,
but high temps will still be in the 80s for most locations.
...STRONG STORM SYSTEM TO BRING HIGH WINDS AND BLOWING DUST ON
SATURDAY...
Saturday: The low situated off the coast will eject toward the
region in the morning. This storm system will feature a strong
vorticity maximum fueled by a 120 kt upper level jet. The surface
low will track into western WA Saturday morning and then push
northeastward into southern BC through the afternoon. Models have
been consistent in showing a strong cold front passage over the
Inland Northwest. The cold front is expected to push into the
basin Saturday morning then track up to the Canadian border
between noon to 2 PM.
* Winds: Very strong winds are expected with frontal passage.
Models show 850 mb winds of near 50 kts across the Columbia
Basin with strong cold air advection. This is expected to result
in good momentum transfer to the surface with 50-60 mph gusts
possible. These stronger gusts will be most likely with frontal
passage in the morning to early afternoon. Windy conditions will
likely persist through the afternoon; although 50+ mph gusts
will become less likely by this time with the front pushing
into Canada. We will be issuing a High Wind Watch for much of
the region; the exception will be the east slopes of the
Cascades and the Wenatchee Area where the orientation of the
pressure gradient will not be as favorable for high winds. High
winds may result in pockets of toppled trees and/or downed power
lines. Strong cross winds along Interstate 90 between Vantage
and Sprague and Highway 2 west of Wenatchee to Spokane can be
expected. This will create hazardous driving conditions for high
profile vehicles.
* Blowing Dust: Strong winds are expected to pick up and blow
around a lot of dust across the Columbia Basin. Blowing dust
will be a concern as far east as the Spokane/Coeur d'Alene Areas
and the Idaho Palouse. There is also a good chance for blowing
dust on the Waterville Plateau and up the Okanogan Valley.
Widespread visibility restrictions down to 1 mile will be
possible and some areas could see near zero visibility at times.
This will include the I-90 and Highways 97, 2, 395, 195 and 95
corridors.
* Precipitation: Models have been trending the heaviest rainfall
further west. It looks like the best chances for more
significant rainfall of 0.25-0.50 inches will be in the east
slopes of the northern Cascades. Areas closer to the Cascade
crest may see rainfall totals between 0.50-1.00 inches. This
rainfall will be stratiform in nature. This will translate into
some pockets of more moderate rainfall at times. High intensity
rainfall typically found with thunderstorms is not expected.
Some minor mud flows may be possible near burn scars, but the
risk for flash flooding looks low. /SVH
Saturday night through Thursday...General long-wave trof of low
pressure allows the jet stream to remain in close proximity which
is favorable to allow numerous shortwave passages through Eastern
Washington and Northern Idaho, and as such below normal
temperatures with above normal precipitation (but not excessive)
mark this forecast interval. Of significant note is a synoptic
scale low pressure system that nests in the large trof and digs
southward into it Wednesday and Thursday which helps to intensify
it and keep it in the area. Current timing shows the most robust
synoptic scale and smaller shortwave disturbances to move through
it and bring the best chances of precipitation to Eastern
Washington and North Idaho Sunday and Wednesday. This pattern
change won't end the fire season for Eastern Washington and
Northern Idaho but will slow it down some. /Pelatti
&&
.AVIATION...
18Z TAFS: The region will be sandwiched between low pressure in
the eastern Pacific and high pressure over the Rookies. A cold
front will linger offshore through Friday morning. The proximity
of the front will promote better mixing today. This is expected to
result in at least some improvement to the smoke across the basin
and for many of the TAF sites. KLWS will have a more difficult
time mixing out today and is expected to remain MVFR through at
least this afternoon. Wind gusts to between 15-22 kts will be
possible in the afternoon. /SVH
&&
.PRELIMINARY POINT TEMPS/POPS...
Spokane 61 84 63 80 53 72 / 0 10 10 20 30 50
Coeur d'Alene 57 84 59 81 51 71 / 0 10 10 30 20 40
Pullman 55 84 59 83 51 73 / 0 10 10 20 20 20
Lewiston 64 89 66 89 58 81 / 10 10 10 20 20 20
Colville 55 83 56 79 49 72 / 0 10 10 50 30 40
Sandpoint 51 83 54 81 48 69 / 0 10 10 40 30 50
Kellogg 55 86 56 82 48 71 / 0 10 10 30 30 30
Moses Lake 60 85 62 77 55 75 / 0 10 10 20 30 30
Wenatchee 67 83 65 74 57 73 / 0 10 20 30 40 20
Omak 61 81 62 75 51 71 / 0 10 20 30 40 30
&&
.OTX WATCHES/WARNINGS/ADVISORIES...
ID...High Wind Watch from Saturday morning through Saturday evening
for Central Panhandle Mountains-Coeur d'Alene Area-Idaho
Palouse-Lewis and Southern Nez Perce Counties-Lewiston Area-
Northern Panhandle.
WA...Red Flag Warning until 8 PM PDT this evening for East Washington
Central Cascade Valleys (Zone 677)-East Washington
Northeast (Zone 686)-East Washington Northern Columbia
Basin (Zone 673)-East Washington Okanogan Highlands (Zone
687)-East Washington Okanogan/Methow Valleys (Zone 684)-
East Washington Palouse and Spokane Area (Zone 674).
High Wind Watch from Saturday morning through Saturday evening
for Lower Garfield and Asotin Counties-Moses Lake Area-
Northeast Blue Mountains-Northeast Mountains-Okanogan
Highlands-Okanogan Valley-Spokane Area-Upper Columbia Basin-
Washington Palouse-Waterville Plateau.
&&Hazardous weather outlook, Aug 27, 6:34 AM PDT, 8 hours 56 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE SPOKANE WA 634 AM PDT THU AUG 27 2015 WAZ034>038-041-043-044-281400- MOSES LAKE AREA-UPPER COLUMBIA BASIN-SPOKANE AREA- NORTHEAST MOUNTAINS-OKANOGAN HIGHLANDS-WENATCHEE AREA- OKANOGAN VALLEY-WATERVILLE PLATEAU- 634 AM PDT THU AUG 27 2015 This Hazardous Weather Outlook is for portions of Central Washington...East Central Washington...North Central Washington and Northeast Washington. .DAY ONE...TODAY AND TONIGHT Breezy southwest winds combined with low daytime relative humidities will create critical conditions on area fires this afternoon and evening. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY Saturday a cold front will push through the Pacific Northwest. This will bring breezy to windy conditions Saturday afternoon and evening. This will also bring an increased threat of blowing dust to portions of the Waterville Plateau, Columbia Basin and Spokane area. WAZ042-281400- EAST SLOPES NORTHERN CASCADES- 634 AM PDT THU AUG 27 2015 This Hazardous Weather Outlook is for portions of North Central Washington. .DAY ONE...TODAY AND TONIGHT No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY A cold front will move through the area Late Friday night/early Saturday morning. Widespread heavy rain is expected along the Cascade mountains starting late Friday afternoon and continuing through Saturday. The heaviest rain will be along the crest with an inch or more of rain expected. Further away from the crest could see a half an inch of rain. In addition to the rain...some portions will see breezy southwest winds Saturday afternoon. IDZ001>004-026-027-WAZ031>033-281400- 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- 634 AM PDT THU AUG 27 2015 This Hazardous Weather Outlook is for portions of North Idaho... North Central Idaho and Southeast Washington. .DAY ONE...TODAY AND TONIGHT No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY Saturday a cold front will push through the Pacific Northwest. This will bring breezy to windy conditions Saturday afternoon and evening. This will also bring an increased threat of blowing dust to portions of the Palouse.
Nearby
High Wind Watches in Washington, 2015High Wind Watches in Idaho, 2015Every high wind watch 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.