Alert archive / Washington / Dust Storm Warnings in 2015
Dust Storm Warning 2, NWS Spokane, WA
NWS Spokane, WA issued this dust storm warning at Aug 29, 2015, 9:19 AM PDT for 7 counties in Washington. It was in force for 8 hr. 9 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
- Aug 29, 2015, 9:19 AM PDT (16:19 UTC)
- Expired
- Aug 29, 2015, 4:57 PM PDT
- In force
- 8 hr
- Issued by
- NWS Spokane, WA
Counties Adams County, WA, Douglas County, WA, Grant County, WA, Lincoln County, WA, Okanogan County, WA, Spokane County, WA, Whitman County, WA
The radar
The Spokane radar (KOTX), 82 km from the middle of the area, began a volume at 16:20 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 |
|---|---|---|---|
| Aug 29, 10:00 AM PDT | NON-TSTM WND GST 0 | 15 W Ritzville, WA | VISIBLITY LESS THAN 1/4 MILE ALONG HWYS 395 AND 21 |
| Aug 29, 10:00 AM PDT | NON-TSTM WND GST 50 | Mansfield, WA | BLOWING DUST VISIBILITY NEAR 1/4 MILE SUSTAINED 40MPH WITH GUSTS TO 50MPH |
| Aug 29, 10:37 AM PDT | NON-TSTM WND GST 0 | Colfax, WA | VISIBILITY NEAR 1/8 MILE DUST AND SMOKE WIND MOVING LARGE TREE BRANCHES |
| Aug 29, 10:45 AM PDT | NON-TSTM WND GST 40 | 22 Sw Ritzville, WA | 33G40MPH 1/2MILE VISIBLITY OR LESS WITH 0 IN SOME SPOTS. |
| Aug 29, 11:40 AM PDT | NON-TSTM WND DMG | 8 W Spokane, WA | POWER LINES DOWN IN SPOKANE VALLEY |
| Aug 29, 12:10 PM PDT | NON-TSTM WND DMG | 2 S Spokane, WA | TREE DOWN OVER ROAD. POWERLINES DOWN UNDER TREE. |
| Aug 29, 12:17 PM PDT | NON-TSTM WND DMG | 8 W Spokane, WA | POWER LINES DOWN IN SPOKANE VALLEY |
| Aug 29, 12:30 PM PDT | NON-TSTM WND GST 40 | Vantage, WA | INTERSTATE 90 CLOSED BETWEEN VANTAGE AND GEORGE DUE TO LOW VISIBILITY IN DUST STORM. MILEPOST 138-155. |
| Aug 29, 1:00 PM PDT | NON-TSTM WND GST 50 | 2 Nw Moses Lake, WA | WIND 30G50MPH |
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, 4.3 hours before the alert went out and 173 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
- 2706 m above ground
- 0-6 km bulk shear
- 71 kt
- 0-1 km storm-relative helicity
- 278 m²/s²
- 0-3 km storm-relative helicity
- 467 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
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. && $$ WAZ036-044-300030- /O.CON.KOTX.HW.A.0001.000000T0000Z-150830T0300Z/ SPOKANE AREA-WATERVILLE PLATEAU- 919 AM PDT SAT AUG 29 2015 ...HIGH WIND WATCH REMAINS IN EFFECT UNTIL 8 PM PDT THIS EVENING... * WINDS...SOUTHWEST 25 TO 35 MPH WITH GUSTS BETWEEN 50 AND 60 MPH. * TIMING...WINDS WILL INCREASE THIS MORNING AND PEAK BY THE EARLY AFTERNOON HOURS. WINDS WILL RELAX LATE SATURDAY EVENING. * IMPACTS...HIGH WINDS MAY RESULT IN IN TOPPLED TREES AND DOWNED POWER LINES. STRONG CROSS WINDS WILL RESULT IN HAZARDOUS TRAVEL FOR HIGH PROFILE VEHICLES...ESPECIALLY ALONG INTERSTATE 90 AND ALONG HIGHWAY 2. WINDS WILL ALSO PRODUCE BLOWING DUST ACROSS THE BASIN INTO THE SURROUNDING VALLEYS. BLOWING DUST MAY RESULT IN VISIBILITY REDUCED TO ONE QUARTER MILE AT TIMES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A HIGH WIND WATCH MEANS THERE IS THE POTENTIAL FOR A HAZARDOUS HIGH WIND EVENT. SUSTAINED WINDS OF AT LEAST 40 MPH...OR GUSTS OF 58 MPH OR STRONGER MAY OCCUR. CONTINUE TO MONITOR THE LATEST FORECASTS. && $$
4 follow-up statements
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. && $$ IDZ001>004-026-027-WAZ031-032-037-038-043-300100- /O.CON.KOTX.WI.Y.0008.000000T0000Z-150830T0300Z/ NORTHERN PANHANDLE-COEUR D'ALENE AREA-IDAHO PALOUSE- CENTRAL PANHANDLE MOUNTAINS-LEWISTON AREA- LEWIS AND SOUTHERN NEZ PERCE COUNTIES-NORTHEAST BLUE MOUNTAINS- LOWER GARFIELD AND ASOTIN COUNTIES-NORTHEAST MOUNTAINS- OKANOGAN HIGHLANDS-OKANOGAN VALLEY- 959 AM PDT SAT AUG 29 2015 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 8 PM PDT THIS EVENING... * WINDS...SOUTHWEST 25 TO 35 MPH WITH GUSTS BETWEEN 40 TO 50 MPH. MOUNTAIN TOP WINDS ARE EXPECTED TO GUST TO BETWEEN 50 AND 60 MPH WITH ISOLATED GUSTS UP TO 65 MPH POSSIBLE. * TIMING...WINDS WILL INCREASE THIS MORNING AND PEAK BY THE EARLY AFTERNOON HOURS. WINDS WILL RELAX LATE SATURDAY EVENING. * IMPACTS...STRONG WINDS MAY RESULT IN IN TOPPLED TREES AND DOWNED POWER LINES. LIGHT WEIGHT OBJECTS WILL BE BLOWN AROUND IF NOT SECURED. BLOWING DUST MAY ALSO REDUCE VISIBILITY TO DOWN TO 1 MILE AT TIMES...ESPECIALLY FOR AREAS AROUND THE COLUMBIA BASIN. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND ADVISORY MEANS THAT WINDS OF 30 TO 40 MPH ARE EXPECTED. WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES. USE EXTRA CAUTION. && $$
109 WWUS76 KOTX 292103 NPWOTX URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE SPOKANE WA 203 PM PDT SAT AUG 29 2015 ...STRONG COLD FRONT TO PRODUCE VERY WINDY CONDITIONS AND BLOWING DUST INTO THE EARLY EVENING... WAZ033-036-300300- /O.CAN.KOTX.DS.W.0002.000000T0000Z-150830T0000Z/ /O.EXA.KOTX.WI.Y.0008.000000T0000Z-150830T0300Z/ WASHINGTON PALOUSE-SPOKANE AREA- 203 PM PDT SAT AUG 29 2015 ...WIND ADVISORY IN EFFECT UNTIL 8 PM PDT THIS EVENING... ...DUST STORM WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN SPOKANE HAS ISSUED A WIND ADVISORY...WHICH IS IN EFFECT UNTIL 8 PM PDT THIS EVENING. THE DUST STORM WARNING HAS BEEN CANCELLED. * WINDS...SOUTHWEST 25 TO 30 MPH WITH GUSTS UP TO 45 MPH. * TIMING...WINDY CONDITIONS WILL CONTINUE THROUGH THIS AFTERNOON AND BEGIN TO SUBSIDE THIS EVENING * IMPACTS...SMALL TREE LIMBS MAY BE BROKEN OFF AND POWER OUTAGES WILL BE POSSIBLE. 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. && $$ WAZ034-035-044-300000- /O.CON.KOTX.DS.W.0002.000000T0000Z-150830T0000Z/ MOSES LAKE AREA-UPPER COLUMBIA BASIN-WATERVILLE PLATEAU- 203 PM PDT SAT AUG 29 2015 ...DUST STORM WARNING REMAINS IN EFFECT UNTIL 5 PM PDT THIS AFTERNOON... * VISIBILITIES...DOWN TO ONE QUARTER MILE AT TIMES. ISOLATED VISIBILITY TO NEAR ZERO WILL BE POSSIBLE. * WINDS...SOUTHWEST 25 TO 35 MPH WITH GUSTS UP TO 50 MPH. * TIMING...WINDS WILL REMAIN GUSTY THIS AFTERNOON AND THEN SUBSIDE THIS EVENING. * IMPACTS...STRONG WINDS ARE EXPECTED TO RESULT IN WIDESPREAD BLOWING DUST. DECREASED VISIBILITY IS EXPECTED TO RESULT IN TREACHEROUS TRAVEL CONDITIONS. THIS WILL INCLUDE INTERSTATE 90 BETWEEN VANTAGE AND SPRAGUE...HIGHWAY 395 BETWEEN RITZVILLE AND SOUTH TOWARD THE TRI-CITIES...HIGHWAY 195 ON THE PALOUSE AND HIGHWAY 2 BETWEEN DAVENPORT TO COULEE CITY. STRONG CROSS WINDS WILL ALSO RESULT IN DIFFICULT DRIVING CONDITIONS FOR HIGH PROFILE VEHICLES. STRONGEST CROSS WINDS ARE EXPECTED ALONG INTERSTATE 90. TOPPLED TREES AND POWER LINE DAMAGE MAY ALSO BE POSSIBLE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A DUST STORM WARNING MEANS SEVERELY LIMITED VISIBILITIES ARE EXPECTED WITH BLOWING DUST. TRAVEL COULD BECOME EXTREMELY DANGEROUS. PERSONS WITH RESPIRATORY PROBLEMS SHOULD MAKE PREPARATIONS TO STAY INDOORS UNTIL THE STORM PASSES. && $$ WAZ041-042-300300- /O.CON.KOTX.WI.Y.0008.000000T0000Z-150830T0300Z/ WENATCHEE AREA-EAST SLOPES NORTHERN CASCADES- 203 PM 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 REMAIN GUSTY THROUGH THIS AFTERNOON AND THEN BEGIN TO SUBSIDE IN THE EVENING. * IMPACTS...STRONG WINDS MAY RESULT IN BROKEN TREE LIMBS 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. && $$ IDZ001>004-026-027-WAZ031-032-037-038-043-300300- /O.CON.KOTX.WI.Y.0008.000000T0000Z-150830T0300Z/ NORTHERN PANHANDLE-COEUR D'ALENE AREA-IDAHO PALOUSE- CENTRAL PANHANDLE MOUNTAINS-LEWISTON AREA- LEWIS AND SOUTHERN NEZ PERCE COUNTIES-NORTHEAST BLUE MOUNTAINS- LOWER GARFIELD AND ASOTIN COUNTIES-NORTHEAST MOUNTAINS- OKANOGAN HIGHLANDS-OKANOGAN VALLEY- 203 PM PDT SAT AUG 29 2015 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 8 PM PDT THIS EVENING... * WINDS...SOUTHWEST 25 TO 35 MPH WITH GUSTS BETWEEN 40 TO 50 MPH. MOUNTAIN TOP WINDS ARE EXPECTED TO GUST TO BETWEEN 50 AND 60 MPH WITH ISOLATED GUSTS UP TO 65 MPH POSSIBLE. * TIMING...WINDS WILL REMAIN GUSTY THIS AFTERNOON AND THEN BEGIN TO SUBSIDE IN THE EVENING. * IMPACTS...STRONG WINDS MAY RESULT IN IN TOPPLED TREES AND DOWNED POWER LINES. LIGHT WEIGHT OBJECTS WILL BE BLOWN AROUND IF NOT SECURED. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND ADVISORY MEANS THAT WINDS OF 30 TO 40 MPH ARE EXPECTED. WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES. USE EXTRA CAUTION. && $$
511 WWUS76 KOTX 292238 NPWOTX URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE SPOKANE WA 338 PM PDT SAT AUG 29 2015 ...STRONG COLD FRONT TO PRODUCE VERY WINDY CONDITIONS AND BLOWING DUST INTO THE EARLY EVENING... WAZ034-035-044-300000- /O.CON.KOTX.DS.W.0002.000000T0000Z-150830T0000Z/ MOSES LAKE AREA-UPPER COLUMBIA BASIN-WATERVILLE PLATEAU- 338 PM 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 50 MPH. * TIMING...WINDS WILL REMAIN GUSTY THIS AFTERNOON AND THEN SUBSIDE THIS EVENING. * 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 ACROSS THE UPPER COLUMBIA BASIN AND ON THE WATERVILLE PLATEAU. STRONG CROSS WINDS WILL ALSO RESULT IN TREACHEROUS DRIVING CONDITIONS FOR HIGH PROFILE VEHICLES. STRONGEST CROSS WINDS ARE EXPECTED ALONG INTERSTATE 90 AND 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. && $$ WAZ041-042-300300- /O.CON.KOTX.WI.Y.0008.000000T0000Z-150830T0300Z/ WENATCHEE AREA-EAST SLOPES NORTHERN CASCADES- 338 PM PDT SAT AUG 29 2015 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 8 PM PDT THIS EVENING... * WINDS...SOUTHWEST 15 TO 25 MPH WITH GUSTS BETWEEN 35 TO 45 MPH IN THE VALLEYS....EXCEPT 25 TO 35 MPH WITH GUSTS BETWEEN 45 AND 55 MPH IN THE MOUNTAINS. * TIMING...WINDS WILL REMAIN GUSTY THROUGH THIS AFTERNOON AND THEN BEGIN TO SUBSIDE IN THE EVENING. * IMPACTS...STRONG WINDS MAY RESULT IN BROKEN TREE LIMBS AND DOWNED POWER LINES. LIGHT WEIGHT OBJECTS WILL BE BLOWN AROUND IF NOT SECURED. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND ADVISORY MEANS THAT WINDS OF 30 TO 40 MPH ARE EXPECTED. WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES. USE EXTRA CAUTION. && $$ IDZ001>004-026-027-WAZ031-032-037-038-043-300300- /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- 338 PM 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 REMAIN GUSTY THIS AFTERNOON AND THEN BEGIN TO SUBSIDE IN THE 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. && $$ WAZ033-036-300300- /O.CON.KOTX.WI.Y.0008.000000T0000Z-150830T0300Z/ WASHINGTON PALOUSE-SPOKANE AREA- 338 PM PDT SAT AUG 29 2015 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 8 PM PDT THIS EVENING... * WINDS...SOUTHWEST 25 TO 30 MPH WITH GUSTS UP TO 45 MPH. * TIMING...WINDY CONDITIONS WILL CONTINUE THROUGH THIS AFTERNOON AND BEGIN TO SUBSIDE THIS EVENING * IMPACTS...SMALL TREE LIMBS MAY BE BROKEN OFF AND POWER OUTAGES WILL BE POSSIBLE. LIGHT WEIGHT OBJECTS WILL BE BLOWN AROUND IF NOT SECURED. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND ADVISORY MEANS THAT WINDS OF 30 TO 40 MPH ARE EXPECTED. WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES. USE EXTRA CAUTION. && $$
155 WWUS76 KOTX 292357 NPWOTX URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE SPOKANE WA 457 PM PDT SAT AUG 29 2015 ...WINDY CONDITIONS AND AREAS OF BLOWING DUST INTO THE EARLY EVENING... WAZ034-035-044-300200- /O.CAN.KOTX.DS.W.0002.000000T0000Z-150830T0000Z/ /O.EXB.KOTX.WI.Y.0008.000000T0000Z-150830T0200Z/ MOSES LAKE AREA-UPPER COLUMBIA BASIN-WATERVILLE PLATEAU- 457 PM PDT SAT AUG 29 2015 ...WIND ADVISORY IN EFFECT UNTIL 7 PM PDT THIS EVENING... ...DUST STORM WARNING IS NO LONGER IN EFFECT... THE NATIONAL WEATHER SERVICE IN SPOKANE HAS DOWNGRADED THE DUST STORM WARNING TO A WIND ADVISORY. THE WIND ADVISORY WILL BE IN EFFECT UNTIL 7 PM PDT THIS EVENING. * WINDS...SOUTHWEST 15 TO 25 MPH WITH GUSTS UP TO 40 MPH. * LOCATIONS...WATERVILLE PLATEAU...MOSES LAKE AREA...AND UPPER COLUMBIA BASIN. * TIMING...WINDS WILL REMAIN GUSTY LATE THIS AFTERNOON AND THEN BEGIN TO SUBSIDE IN THE EVENING. * IMPACTS...STRONG WINDS MAY RESULT IN IN TOPPLED TREES AND DOWNED POWER LINES. LIGHT WEIGHT OBJECTS WILL BE BLOWN AROUND IF NOT SECURED. AREAS OF BLOWING DUST WILL LOWER VISIBILITIES AND MAY CAUSE TRAFFIC SLOW DOWNS. 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. && $$ IDZ001>004-027-WAZ031-037-038-041-042-300100- /O.CAN.KOTX.WI.Y.0008.000000T0000Z-150830T0300Z/ NORTHERN PANHANDLE-COEUR D'ALENE AREA-IDAHO PALOUSE- CENTRAL PANHANDLE MOUNTAINS-LEWIS AND SOUTHERN NEZ PERCE COUNTIES- NORTHEAST BLUE MOUNTAINS-NORTHEAST MOUNTAINS-OKANOGAN HIGHLANDS- WENATCHEE AREA-EAST SLOPES NORTHERN CASCADES- 457 PM PDT SAT AUG 29 2015 ...WIND ADVISORY IS CANCELLED... THE NATIONAL WEATHER SERVICE IN SPOKANE HAS CANCELLED THE WIND ADVISORY. WINDS HAVE SUBSIDED ACROSS MUCH OF NORTH IDAHO AND NORTHEAST WASHINGTON. EXPECT WINDS OF 10 TO 20 MPH WITH GUSTS TO 30 MPH ON EXPOSED LOCATIONS THROUGH EARLY THIS EVENING. $$ IDZ026-WAZ032-043-300200- /O.EXT.KOTX.WI.Y.0008.000000T0000Z-150830T0200Z/ LEWISTON AREA-LOWER GARFIELD AND ASOTIN COUNTIES-OKANOGAN VALLEY- 457 PM PDT SAT AUG 29 2015 ...WIND ADVISORY NOW IN EFFECT UNTIL 7 PM PDT THIS EVENING... * WINDS...SOUTHWEST 15 TO 25 MPH WITH GUSTS UP TO 40 MPH. * TIMING...WINDS WILL REMAIN GUSTY LATE THIS AFTERNOON AND THEN BEGIN TO SUBSIDE IN THE EVENING. * IMPACTS...STRONG WINDS MAY RESULT IN IN TOPPLED TREES AND DOWNED POWER LINES. LIGHT WEIGHT OBJECTS WILL BE BLOWN AROUND IF NOT SECURED. AREAS OF BLOWING DUST WILL LOWER VISIBILITIES CAUSING TRAFFIC SLOW DOWNS. 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. && $$ WAZ033-036-300200- /O.EXT.KOTX.WI.Y.0008.000000T0000Z-150830T0200Z/ WASHINGTON PALOUSE-SPOKANE AREA- 457 PM PDT SAT AUG 29 2015 ...WIND ADVISORY NOW IN EFFECT UNTIL 7 PM PDT THIS EVENING WEST OF SPOKANE AND PULLMAN... * WINDS...SOUTHWEST 15 TO 25 MPH WITH GUSTS UP TO 40 MPH...ESPECIALLY FOR THE WEST PLAINS AND THE WESTERN WASHINGTON PALOUSE. * LOCATIONS...REARDAN...CHENEY...SPANGLE...ST. JOHN...LACROSSE AND DUSTY. * TIMING...WINDY CONDITIONS WILL CONTINUE LATE THIS AFTERNOON AND BEGIN TO SUBSIDE THIS EVENING * IMPACTS...SMALL TREE LIMBS MAY BE BROKEN OFF AND POWER OUTAGES WILL BE POSSIBLE. LIGHT WEIGHT OBJECTS WILL BE BLOWN AROUND IF NOT SECURED. AREAS OF BLOWING DUST MAY LOWER VISIBILITIES ON ROADWAYS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND ADVISORY MEANS THAT WINDS OF 30 TO 40 MPH ARE EXPECTED. WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES. USE EXTRA CAUTION. && $$
What forecasters said that day
The local office's own words before this dust 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 dust storm warning went out at Aug 29, 9:00 AM PDT, 19 minutes earlier.
Area forecast discussion, Aug 29, 9:00 AM PDT, 19 minutes before
Area Forecast Discussion
National Weather Service Spokane WA
900 AM PDT SAT AUG 29 2015
.SYNOPSIS...
A cold front will push through the Inland Northwest today and
bring high winds to the region. This will create a situation for
blowing dust with reduced visibility. There is the potential for
toppled trees and downed power lines as well. A cooler and
occasionally breezy regime with some shower activity will persist
through the next week.
&&
.DISCUSSION...
A quick update to upgrade the High Wind Watch around the the basin
zones (including the Waterville Plateau, Spokane Area and WA
Palouse) to a Wind Advisory. Sustained winds of 25-35 mph is
expected with frontal passage late this morning/early afternoon
into the early evening hours. Wind gusts at lower elevations will
be in the 40-50 mph range. Mountain top gusts will range from
50-60 mph with isolated gusts up to 65 mph possible. Winds this
strong can topple over trees and cause damage to power lines. High
profile vehicles may also experience hazardous driving
conditions. Blowing dust in the vicinity of the basin will also
be a concern for visibility down to near 1 to 2 miles this
afternoon. The High Wind Watch will continue for the rest of the
forecast area, but will re-evaluate through this morning,
especially for the potential of blowing dust. /SVH
&&
.AVIATION...
12Z TAFS: A vigorous cold front passage today will cause the winds
to increase and shift during the aviation period along with some
spells of LLWS this morning. When winds reach peak this afternoon
the mixing of the smoke will be replaced with some blowing dust
to impact visibilities (possibly down to IFR near KMWH this
afternoon). Showers (and some thunderstorms) that form will move
quickly to the Northeast at 40 mph or more which won't allow much
precipitation to fall in one place. High wind watch remains in
place for today. Decrease in wind and blowing dust expected in
very late afternoon and early evening. /Pelatti
&&
.PRELIMINARY POINT TEMPS/POPS...
Spokane 82 53 68 52 71 53 / 30 20 70 10 10 10
Coeur d'Alene 83 52 64 49 71 52 / 40 20 70 10 20 20
Pullman 83 52 66 50 74 51 / 30 20 60 10 10 10
Lewiston 89 58 73 55 80 57 / 20 20 50 10 10 10
Colville 83 51 70 50 70 50 / 40 30 70 20 40 20
Sandpoint 83 50 62 48 69 49 / 40 20 80 20 40 40
Kellogg 83 49 60 47 71 48 / 30 30 80 20 20 20
Moses Lake 80 55 74 54 76 55 / 20 40 50 10 10 10
Wenatchee 77 56 71 55 74 55 / 30 50 30 10 20 20
Omak 78 52 72 51 73 52 / 40 70 50 20 20 30
&&
.OTX WATCHES/WARNINGS/ADVISORIES...
ID...Red Flag Warning until 7 PM PDT this evening for Northern and
Central Idaho Panhandle (Zone 101).
Wind Advisory until 8 PM PDT this 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 7 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).
Wind Advisory until 8 PM PDT this evening for East Slopes
Northern Cascades-Lower Garfield and Asotin Counties-
Northeast Blue Mountains-Northeast Mountains-Okanogan
Highlands-Okanogan Valley-Wenatchee Area.
High Wind Watch until 8 PM PDT this evening for Moses Lake Area-
Spokane Area-Upper Columbia Basin-Washington Palouse-
Waterville Plateau.
&&Hazardous weather outlook, Aug 29, 4:39 AM PDT, 4 hours 40 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE SPOKANE WA 439 AM PDT SAT AUG 29 2015 IDZ002-003-026-027-WAZ031>036-044-301145- COEUR D'ALENE AREA-IDAHO PALOUSE-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- WATERVILLE PLATEAU- 439 AM PDT SAT AUG 29 2015 This Hazardous Weather Outlook is for portions of North Idaho... North Central Idaho...Central Washington...East Central Washington...Northeast Washington and Southeast Washington. .DAY ONE...TODAY AND TONIGHT A strong cold front will move through the region. The potential exists for very strong winds today with gusts up to 60 mph over much of the region. In addition to damage and power outages these winds will produce widespread blowing dust with local visibilities near zero and will disrupt travel on area highways throughout the Columbia Basin. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY A cooler than normal, breezy and showery weather pattern is expected through the upcoming week. WAZ041-042-301145- WENATCHEE AREA-EAST SLOPES NORTHERN CASCADES- 439 AM PDT SAT AUG 29 2015 This Hazardous Weather Outlook is for portions of North Central Washington. .DAY ONE...TODAY AND TONIGHT Moderate rain is expected across the Cascade mountains Saturday. The heaviest amounts...an inch or more will be found along the crest of the Cascades. The further away one goes from the crest, the less rain is expected. Cascade valleys and the Wenatchee area could see anywhere from a tenth of an inch up to three tenths of an inch. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY A cooler than normal, breezy and showery weather pattern is expected through the upcoming week. IDZ001-004-WAZ037-038-043-301145- NORTHERN PANHANDLE-CENTRAL PANHANDLE MOUNTAINS- NORTHEAST MOUNTAINS-OKANOGAN HIGHLANDS-OKANOGAN VALLEY- 439 AM PDT SAT AUG 29 2015 This Hazardous Weather Outlook is for portions of North Idaho... North Central Washington and Northeast Washington. .DAY ONE...TODAY AND TONIGHT A strong cold front will move through the region today. The potential exists for very strong winds today with gusts up to 60 mph. 60 to 70 mph wind gusts are possible across the mountains. Winds will likely be lower in the valleys but occasional strong gusts will aggravate fire fighting efforts and may cause scattered power outages. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY A cooler than normal, breezy and showery weather pattern is expected through the upcoming week.
The office that day
Everything else NWS Spokane, WA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 29, 8:17 AM PDT | Wind Advisory | OTX | Adams, Asotin, Chelan, Douglas, Ferry, Garfield and 7 more | 11 hr |
Nearby
Dust Storm Warnings in Washington, 2015Every dust 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.