Alert archive / Washington / Red Flag Warnings in 2011
Red Flag Warning 7, NWS Pendleton, OR
NWS Pendleton, OR issued this red flag warning at Aug 24, 2011, 2:20 AM PDT for Clark County, Skamania County, Washington. It took effect at Aug 24, 2011, 1:00 PM PDT. It was in force for 33 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Aug 24, 2011, 2:20 AM PDT (09:20 UTC)
- In effect from
- Aug 24, 2011, 1:00 PM PDT
- Expired
- Aug 25, 2011, 9:53 PM PDT
- In force
- 33 hr
- Issued by
- NWS Pendleton, OR
Counties Clark County, WA, Skamania County, WA
The radar
The Portland,OR radar (KRTX), 63 km from the middle of the area, began a volume at 09:18 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
Salem/Mcnary, OR (KSLE), launched 00:00Z, 9.3 hours before the alert went out and 126 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
- 1799 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- 8 m²/s²
- 0-3 km storm-relative helicity
- 29 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
341 WWUS86 KPDT 240920 RFWPDT URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE PENDLETON OR 220 AM PDT WED AUG 24 2011 ...THUNDERSTORMS ARE EXPECTED TODAY OVER PARTS OF CENTRAL AND NORTHEAST OREGON AND THE BLUE MOUNTAINS OF SOUTHEAST WASHINGTON... .A WEATHER SYSTEM MOVING ACROSS THE REGION WILL PRODUCE SCATTERED THUNDERSTORMS WITH ABUNDANT LIGHTNING. ORZ610-611-630-632>635-638-WAZ633-241800- /O.UPG.KPDT.FW.A.0006.110824T2000Z-110825T0600Z/ /O.NEW.KPDT.FW.W.0007.110824T2000Z-110825T0600Z/ EAST SLOPES OF CENTRAL OREGON CASCADES-DESCHUTES NATIONAL FOREST- CENTRAL MOUNTAINS OF OREGON- SOUTHERN BLUE AND STRAWBERRY MOUNTAINS- NORTHERN BLUE MOUNTAINS OF OREGON-EAGLE CAP DISTRICT- WALLOWA DISTRICT-BAKER VALLEY-BLUE MOUNTAINS OF WASHINGTON- 220 AM PDT WED AUG 24 2011 ...RED FLAG WARNING IN EFFECT FROM 1 PM THIS AFTERNOON TO 11 PM PDT THIS EVENING FOR THUNDERSTORMS PRODUCING ABUNDANT LIGHTNING ACROSS FIRE WEATHER ZONES OR610...OR611...OR630...OR632...OR633... OR634...OR635...OR638 AND WA633... THE NATIONAL WEATHER SERVICE IN PENDLETON HAS ISSUED A RED FLAG WARNING FOR THUNDERSTORMS PRODUCING ABUNDANT LIGHTNING...WHICH IS IN EFFECT FROM 1 PM THIS AFTERNOON TO 11 PM PDT THIS EVENING. THE FIRE WEATHER WATCH IS NO LONGER IN EFFECT. * AFFECTED AREA...IN OREGON...FIRE WEATHER ZONE 610 EAST SLOPES OF CENTRAL OREGON CASCADES...FIRE WEATHER ZONE 611 DESCHUTES NATIONAL FOREST...FIRE WEATHER ZONE 630 CENTRAL MOUNTAINS OF OREGON...FIRE WEATHER ZONE 632 SOUTHERN BLUE AND STRAWBERRY MOUNTAINS...FIRE WEATHER ZONE 633 NORTHERN BLUE MOUNTAINS OF OREGON...FIRE WEATHER ZONE 634 EAGLE CAP DISTRICT...FIRE WEATHER ZONE 635 WALLOWA DISTRICT AND FIRE WEATHER ZONE 638 BAKER VALLEY. IN WASHINGTON...FIRE WEATHER ZONE 633 BLUE MOUNTAINS OF WASHINGTON. * TIMING...THIS AFTERNOON AND EVENING. * THUNDERSTORMS...SCATTERED THUNDERSTORMS WILL DEVELOP OVER CENTRAL OREGON IN THE AFTERNOON AND SPREAD NORTHEAST DURING THE EVENING. * PRECIPITATION...THE STORMS ARE EXPECTED TO PRODUCE SOME RAINFALL. * LIGHTNING ACTIVITY LEVEL...LAL 3 WITH SOME STORMS POSSIBLY PRODUCING LAL 4. * IMPACTS...FREQUENT LIGHTNING AND CRITICALLY DRY FUELS MAY RESULT IN NUMEROUS FIRE STARTS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND VERY WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$ FOR MORE INFORMATION FROM NOAA/NATIONAL WEATHER SERVICE VISIT... HTTP://WEATHER.GOV/PENDLETON (ALL LOWER CASE) RSC
6 follow-up statements
908 WWUS86 KPDT 241707 RFWPDT URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE PENDLETON OR 1007 AM PDT WED AUG 24 2011 ...THUNDERSTORMS ARE EXPECTED TODAY OVER PARTS OF CENTRAL AND NORTHEAST OREGON AND THE BLUE MOUNTAINS OF SOUTHEAST WASHINGTON... .A WEATHER SYSTEM MOVING ACROSS THE REGION WILL PRODUCE SCATTERED THUNDERSTORMS WITH ABUNDANT LIGHTNING. ORZ610-611-630-632>635-638-WAZ633-250600- /O.CON.KPDT.FW.W.0007.110824T2000Z-110825T0600Z/ EAST SLOPES OF CENTRAL OREGON CASCADES-DESCHUTES NATIONAL FOREST- CENTRAL MOUNTAINS OF OREGON- SOUTHERN BLUE AND STRAWBERRY MOUNTAINS- NORTHERN BLUE MOUNTAINS OF OREGON-EAGLE CAP DISTRICT- WALLOWA DISTRICT-BAKER VALLEY-BLUE MOUNTAINS OF WASHINGTON- 1007 AM PDT WED AUG 24 2011 ...RED FLAG WARNING REMAINS IN EFFECT FROM 1 PM THIS AFTERNOON TO 11 PM PDT THIS EVENING FOR THUNDERSTORMS PRODUCING ABUNDANT LIGHTNING ACROSS FIRE WEATHER ZONES OR610...OR611...OR630... OR632...OR633...OR634...OR635...OR638 AND WA633... A RED FLAG WARNING REMAINS IN EFFECT FROM 1 PM THIS AFTERNOON TO 11 PM PDT THIS EVENING. * AFFECTED AREA...IN OREGON...FIRE WEATHER ZONE 610 EAST SLOPES OF CENTRAL OREGON CASCADES...FIRE WEATHER ZONE 611 DESCHUTES NATIONAL FOREST...FIRE WEATHER ZONE 630 CENTRAL MOUNTAINS OF OREGON...FIRE WEATHER ZONE 632 SOUTHERN BLUE AND STRAWBERRY MOUNTAINS...FIRE WEATHER ZONE 633 NORTHERN BLUE MOUNTAINS OF OREGON...FIRE WEATHER ZONE 634 EAGLE CAP DISTRICT...FIRE WEATHER ZONE 635 WALLOWA DISTRICT AND FIRE WEATHER ZONE 638 BAKER VALLEY. IN WASHINGTON...FIRE WEATHER ZONE 633 BLUE MOUNTAINS OF WASHINGTON. * TIMING...THIS AFTERNOON AND EVENING. * THUNDERSTORMS...SCATTERED THUNDERSTORMS WILL DEVELOP OVER CENTRAL OREGON IN THE AFTERNOON AND SPREAD NORTHEAST DURING THE EVENING. * PRECIPITATION...THE STORMS ARE EXPECTED TO PRODUCE SOME RAINFALL. * LIGHTNING ACTIVITY LEVEL...LAL 3 WITH SOME STORMS POSSIBLY PRODUCING LAL 4. * IMPACTS...FREQUENT LIGHTNING AND CRITICALLY DRY FUELS MAY RESULT IN NUMEROUS FIRE STARTS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND VERY WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$ FOR MORE INFORMATION FROM NOAA/NATIONAL WEATHER SERVICE VISIT... HTTP://WEATHER.GOV/PENDLETON (ALL LOWER CASE)
991 WWUS86 KPDT 250606 RFWPDT URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE PENDLETON OR 1106 PM PDT WED AUG 24 2011 ...THUNDERSTORMS ARE EXPECTED THROUGH TONIGHT OVER THE MOUNTAINS OF NORTHEAST OREGON AND THE BLUE MOUNTAINS OF SOUTHEAST WASHINGTON... .A WEATHER SYSTEM MOVING ACROSS THE REGION WILL PRODUCE SCATTERED THUNDERSTORMS WITH ABUNDANT LIGHTNING IN THE MOUNTAINS OF NORTHEAST OREGON AND SOUTHEAST WASHINGTON THROUGH TONIGHT. ORZ610-611-630-632-250715- /O.CAN.KPDT.FW.W.0007.000000T0000Z-110825T0600Z/ EAST SLOPES OF CENTRAL OREGON CASCADES-DESCHUTES NATIONAL FOREST- CENTRAL MOUNTAINS OF OREGON- SOUTHERN BLUE AND STRAWBERRY MOUNTAINS- 1106 PM PDT WED AUG 24 2011 ...RED FLAG WARNING IS CANCELLED FOR THUNDERSTORMS PRODUCING ABUNDANT LIGHTNING ACROSS FIRE WEATHER ZONES OR610...OR611... OR630...OR632...OR633...OR634...OR635...OR638 AND WA633... THE NATIONAL WEATHER SERVICE IN PENDLETON HAS CANCELLED THE RED FLAG WARNING. THUNDERSTORMS HAVE DIMINISHED THIS EVENING IN CENTRAL OREGON. ABUNDANT LIGHTNING IS THEREFORE NO LONGER EXPECTED IN THE AREA. $$ ORZ633>635-638-WAZ633-251300- /O.EXT.KPDT.FW.W.0007.000000T0000Z-110825T1300Z/ NORTHERN BLUE MOUNTAINS OF OREGON-EAGLE CAP DISTRICT- WALLOWA DISTRICT-BAKER VALLEY-BLUE MOUNTAINS OF WASHINGTON- 1106 PM PDT WED AUG 24 2011 ...RED FLAG WARNING NOW IN EFFECT UNTIL 6 AM PDT THURSDAY FOR THUNDERSTORMS PRODUCING ABUNDANT LIGHTNING ACROSS FIRE WEATHER ZONES OR633...OR634...OR635...OR638 AND WA633... THE RED FLAG WARNING IS NOW IN EFFECT UNTIL 6 AM PDT THURSDAY. * AFFECTED AREA...IN OREGON...FIRE WEATHER ZONE 633 NORTHERN BLUE MOUNTAINS OF OREGON...FIRE WEATHER ZONE 634 EAGLE CAP DISTRICT...FIRE WEATHER ZONE 635 WALLOWA DISTRICT AND FIRE WEATHER ZONE 638 BAKER VALLEY. IN WASHINGTON...FIRE WEATHER ZONE 633 BLUE MOUNTAINS OF WASHINGTON. * TIMING...THROUGH THE REMAINDER OF TONIGHT. * THUNDERSTORMS...SCATTERED THUNDERSTORMS WILL CONTINUE OVER THE MOUNTAINS OF NORTHEAST OREGON AND SOUTHEAST WASHINGTON THROUGH TONIGHT. * PRECIPITATION...THE STORMS ARE EXPECTED TO PRODUCE SOME RAINFALL. * LIGHTNING ACTIVITY LEVEL...LAL 3 WITH SOME STORMS POSSIBLY PRODUCING LAL 4. * IMPACTS...FREQUENT LIGHTNING AND CRITICALLY DRY FUELS MAY RESULT IN NUMEROUS FIRE STARTS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND VERY WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$ FOR MORE INFORMATION FROM NOAA/NATIONAL WEATHER SERVICE VISIT... HTTP://WEATHER.GOV/PENDLETON (ALL LOWER CASE)
357 WWUS86 KPDT 250744 CCA RFWPDT URGENT - FIRE WEATHER MESSAGE...CORRECTED NATIONAL WEATHER SERVICE PENDLETON OR 1241 AM PDT THU AUG 25 2011 CORRECTED HEADLINE IN FIRST SEGMENT. ...THUNDERSTORMS ARE EXPECTED THROUGH TONIGHT OVER THE MOUNTAINS OF NORTHEAST OREGON AND THE BLUE MOUNTAINS OF SOUTHEAST WASHINGTON... .A WEATHER SYSTEM MOVING ACROSS THE REGION WILL PRODUCE SCATTERED THUNDERSTORMS WITH ABUNDANT LIGHTNING IN THE MOUNTAINS OF NORTHEAST OREGON AND SOUTHEAST WASHINGTON THROUGH TONIGHT. ORZ610-611-630-632-250715- /O.COR.KPDT.FW.W.0007.000000T0000Z-110825T0600Z/ EAST SLOPES OF CENTRAL OREGON CASCADES-DESCHUTES NATIONAL FOREST- CENTRAL MOUNTAINS OF OREGON- SOUTHERN BLUE AND STRAWBERRY MOUNTAINS- 1241 AM PDT THU AUG 25 2011 ...RED FLAG WARNING IS CANCELLED FOR THUNDERSTORMS PRODUCING ABUNDANT LIGHTNING ACROSS FIRE WEATHER ZONES OR610...OR611... OR630...OR632... THE NATIONAL WEATHER SERVICE IN PENDLETON HAS CANCELLED THE RED FLAG WARNING. THUNDERSTORMS HAVE DIMINISHED THIS EVENING IN CENTRAL OREGON. ABUNDANT LIGHTNING IS THEREFORE NO LONGER EXPECTED IN THE AREA. $$ ORZ633>635-638-WAZ633-251300- /O.EXT.KPDT.FW.W.0007.000000T0000Z-110825T1300Z/ NORTHERN BLUE MOUNTAINS OF OREGON-EAGLE CAP DISTRICT- WALLOWA DISTRICT-BAKER VALLEY-BLUE MOUNTAINS OF WASHINGTON- 1241 AM PDT THU AUG 25 2011 ...RED FLAG WARNING NOW IN EFFECT UNTIL 6 AM PDT THURSDAY FOR THUNDERSTORMS PRODUCING ABUNDANT LIGHTNING ACROSS FIRE WEATHER ZONES OR633...OR634...OR635...OR638 AND WA633... THE RED FLAG WARNING IS NOW IN EFFECT UNTIL 6 AM PDT THURSDAY. * AFFECTED AREA...IN OREGON...FIRE WEATHER ZONE 633 NORTHERN BLUE MOUNTAINS OF OREGON...FIRE WEATHER ZONE 634 EAGLE CAP DISTRICT...FIRE WEATHER ZONE 635 WALLOWA DISTRICT AND FIRE WEATHER ZONE 638 BAKER VALLEY. IN WASHINGTON...FIRE WEATHER ZONE 633 BLUE MOUNTAINS OF WASHINGTON. * TIMING...THROUGH THE REMAINDER OF TONIGHT. * THUNDERSTORMS...SCATTERED THUNDERSTORMS WILL CONTINUE OVER THE MOUNTAINS OF NORTHEAST OREGON AND SOUTHEAST WASHINGTON THROUGH TONIGHT. * PRECIPITATION...THE STORMS ARE EXPECTED TO PRODUCE SOME RAINFALL. * LIGHTNING ACTIVITY LEVEL...LAL 3 WITH SOME STORMS POSSIBLY PRODUCING LAL 4. * IMPACTS...FREQUENT LIGHTNING AND CRITICALLY DRY FUELS MAY RESULT IN NUMEROUS FIRE STARTS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND VERY WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$ FOR MORE INFORMATION FROM NOAA/NATIONAL WEATHER SERVICE VISIT... HTTP://WEATHER.GOV/PENDLETON (ALL LOWER CASE)
306 WWUS86 KPDT 251035 RFWPDT URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE PENDLETON OR 335 AM PDT THU AUG 25 2011 ...THUNDERSTORMS ARE EXPECTED THIS MORNING ACROSS THE MOUNTAINS OF NORTHEAST OREGON AND SOUTHEAST WASHINGTON AND WILL CONTINUE THROUGH THIS EVENING. ELSEWHERE THUNDERSTORMS WILL DEVELOP AGAIN BY THIS AFTERNOON AND CONTINUE THROUGH LATE THIS EVENING OVER THE MOUNTAINS OF CENTRAL AND EAST CENTRAL OREGON... .A WEATHER SYSTEM MOVING ACROSS THE REGION WILL PRODUCE SCATTERED THUNDERSTORMS WITH ABUNDANT LIGHTNING IN THE MOUNTAINS OF NORTHEAST OREGON AND SOUTHEAST WASHINGTON THIS MORNING THROUGH LATE THIS EVENING. IN ADDITION ANOTHER WEATHER SYSTEM WILL MOVE INTO THE REGION AND CAUSE THUNDERSTORMS AGAIN BY THIS AFTERNOON OVER THE MOUNTAINS OF CENTRAL AND EAST CENTRAL OREGON AND WILL CONTINUE THROUGH LATE THIS EVENING. ORZ610-611-630-632-251900- /O.NEW.KPDT.FW.W.0008.110825T1900Z-110826T0600Z/ EAST SLOPES OF CENTRAL OREGON CASCADES-DESCHUTES NATIONAL FOREST- CENTRAL MOUNTAINS OF OREGON- SOUTHERN BLUE AND STRAWBERRY MOUNTAINS- 335 AM PDT THU AUG 25 2011 ...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 11 PM PDT THIS EVENING FOR THUNDERSTORMS PRODUCING ABUNDANT LIGHTNING ACROSS FIRE WEATHER ZONES OR610...OR611...OR630 AND OR632... THE NATIONAL WEATHER SERVICE IN PENDLETON HAS ISSUED A RED FLAG WARNING FOR THUNDERSTORMS PRODUCING ABUNDANT LIGHTNING...WHICH IS IN EFFECT FROM NOON TODAY TO 11 PM PDT THIS EVENING. * AFFECTED AREA...IN OREGON...FIRE WEATHER ZONE 610 EAST SLOPES OF CENTRAL OREGON CASCADES...FIRE WEATHER ZONE 611 DESCHUTES NATIONAL FOREST...FIRE WEATHER ZONE 630 CENTRAL MOUNTAINS OF OREGON AND FIRE WEATHER ZONE 632 SOUTHERN BLUE AND STRAWBERRY MOUNTAINS. * TIMING...FROM NOON TODAY THROUGH LATE THIS EVENING. * THUNDERSTORMS...SCATTERED THUNDERSTORMS WILL DEVELOP AGAIN BY THIS AFTERNOON AND CONTINUE THROUGH THIS EVENING. * PRECIPITATION...THE STORMS ARE EXPECTED TO PRODUCE SOME RAINFALL. * LIGHTNING ACTIVITY LEVEL...LAL 3 WITH SOME STORMS POSSIBLY PRODUCING LAL 4. * IMPACTS...FREQUENT LIGHTNING AND CRITICALLY DRY FUELS MAY RESULT IN NUMEROUS FIRE STARTS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$ ORZ633>635-638-WAZ633-251900- /O.EXT.KPDT.FW.W.0007.000000T0000Z-110826T0600Z/ NORTHERN BLUE MOUNTAINS OF OREGON-EAGLE CAP DISTRICT- WALLOWA DISTRICT-BAKER VALLEY-BLUE MOUNTAINS OF WASHINGTON- 335 AM PDT THU AUG 25 2011 ...RED FLAG WARNING NOW IN EFFECT UNTIL 11 PM PDT THIS EVENING FOR THUNDERSTORMS PRODUCING ABUNDANT LIGHTNING ACROSS FIRE WEATHER ZONES OR633...OR634...OR635...OR638 AND WA633... THE RED FLAG WARNING IS NOW IN EFFECT UNTIL 11 PM PDT THIS EVENING. * AFFECTED AREA...IN OREGON...FIRE WEATHER ZONE 633 NORTHERN BLUE MOUNTAINS OF OREGON...FIRE WEATHER ZONE 634 EAGLE CAP DISTRICT...FIRE WEATHER ZONE 635 WALLOWA DISTRICT AND FIRE WEATHER ZONE 638 BAKER VALLEY. IN WASHINGTON...FIRE WEATHER ZONE 633 BLUE MOUNTAINS OF WASHINGTON. * TIMING...THIS MORNING THROUGH LATE THIS EVENING. * THUNDERSTORMS...SCATTERED THUNDERSTORMS WILL CONTINUE OVER THE MOUNTAINS OF NORTHEAST OREGON AND SOUTHEAST WASHINGTON THIS MORNING AND WILL CONTINUE THROUGH LATE THIS EVENING. * PRECIPITATION...THE STORMS ARE EXPECTED TO PRODUCE SOME RAINFALL. * LIGHTNING ACTIVITY LEVEL...LAL 3 WITH SOME STORMS POSSIBLY PRODUCING LAL 4. * IMPACTS...FREQUENT LIGHTNING AND CRITICALLY DRY FUELS MAY RESULT IN NUMEROUS FIRE STARTS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND VERY WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$ FOR MORE INFORMATION FROM NOAA/NATIONAL WEATHER SERVICE VISIT... HTTP://WEATHER.GOV/PENDLETON (ALL LOWER CASE)
160 WWUS86 KPDT 251859 RFWPDT URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE PENDLETON OR 1159 AM PDT THU AUG 25 2011 ...SCATTERED THUNDERSTORMS POSSIBLE ACROSS THE AREA TODAY AND TONIGHT... .THUNDERSTORMS WILL DEVELOP AGAIN BY THIS AFTERNOON AND CONTINUE THROUGH LATE THIS EVENING OVER THE MOUNTAINS OF CENTRAL AND NORTHEAST OREGON.ANOTHER LOW PRESSURE SYSTEM WILL MOVE INTO NORTH CENTRAL OREGON LATER THIS EVENING AND THEN INTO CENTRAL WASHINGTON OVERNIGHT. ISOLATED TO SCATTERED THUNDERSTORMS WITH ABUNDANT LIGHTNING WILL THEREFORE BE POSSIBLE IN THESE AREAS THROUGH EARLY MORNING FRIDAY. ORZ609-631-WAZ609-631-675-681-260600- /O.EXB.KPDT.FW.W.0008.110826T0300Z-110826T1600Z/ EAST SLOPES OF NORTH OREGON CASCADES-COLUMBIA BASIN OF OREGON- EAST SLOPES OF THE SOUTHERN WASHINGTON CASCADES- LOWER COLUMBIA BASIN OF WASHINGTON- EASTERN WASHINGTON SOUTHERN COLUMBIA BASIN-YAKAMA ALPINE DISTRICT- 1159 AM PDT THU AUG 25 2011 ...RED FLAG WARNING IN EFFECT FROM 8 PM THIS EVENING TO 9 AM PDT FRIDAY FOR THUNDERSTORMS PRODUCING ABUNDANT LIGHTNING ACROSS FIRE WEATHER ZONES OR609...OR631...WA609...WA631...WA675 AND WA681... THE NATIONAL WEATHER SERVICE IN PENDLETON HAS ISSUED A RED FLAG WARNING FOR THUNDERSTORMS PRODUCING ABUNDANT LIGHTNING...WHICH IS IN EFFECT FROM 8 PM THIS EVENING TO 9 AM PDT FRIDAY. * AFFECTED AREA...IN OREGON...FIRE WEATHER ZONE 609 EAST SLOPES OF NORTH OREGON CASCADES AND WESTERN PORTIONS OF FIRE WEATHER ZONE 631 COLUMBIA BASIN OF OREGON. IN WASHINGTON...FIRE WEATHER ZONE 609 EAST SLOPES OF THE SOUTHERN WASHINGTON CASCADES...WESTERN PORTIONS OF FIRE WEATHER ZONE 631 LOWER COLUMBIA BASIN OF WASHINGTON...FIRE WEATHER ZONE 675 EASTERN WASHINGTON SOUTHERN COLUMBIA BASIN AND FIRE WEATHER ZONE 681 YAKAMA ALPINE DISTRICT. * TIMING...THUNDERSTORMS WILL MOVE INTO NORTH CENTRAL OREGON LATER THIS EVENING AND THEN INTO SOUTH CENTRAL WASHINGTON AFTER MIDNIGHT. STORMS WILL MOVE THROUGH CENTRAL WASHINGTON AND THEN DISSIPATE BY MID-MORNING FRIDAY. * THUNDERSTORMS...ISOLATED TO SCATTERED STORMS THAT COULD PRODUCE ABUNDANT LIGHTNING AND BRIEF GUSTY WINDS. * PRECIPITATION...GENERALLY LESS THAN ONE TENTH OF AN INCH. * LIGHTNING ACTIVITY LEVEL...LAL 3 WITH SOME STORMS POSSIBLY PRODUCING LAL 4. * IMPACTS...FREQUENT LIGHTNING AND CRITICALLY DRY FUELS MAY RESULT IN NUMEROUS FIRE STARTS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$ ORZ633>635-638-WAZ633-260600- /O.CON.KPDT.FW.W.0007.000000T0000Z-110826T0600Z/ NORTHERN BLUE MOUNTAINS OF OREGON-EAGLE CAP DISTRICT- WALLOWA DISTRICT-BAKER VALLEY-BLUE MOUNTAINS OF WASHINGTON- 1159 AM PDT THU AUG 25 2011 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 11 PM PDT THIS EVENING FOR THUNDERSTORMS PRODUCING ABUNDANT LIGHTNING ACROSS FIRE WEATHER ZONES OR633...OR634...OR635...OR638 AND WA633... A RED FLAG WARNING REMAINS IN EFFECT UNTIL 11 PM PDT THIS EVENING. * AFFECTED AREA...IN OREGON...FIRE WEATHER ZONE 633 NORTHERN BLUE MOUNTAINS OF OREGON...FIRE WEATHER ZONE 634 EAGLE CAP DISTRICT...FIRE WEATHER ZONE 635 WALLOWA DISTRICT AND FIRE WEATHER ZONE 638 BAKER VALLEY. IN WASHINGTON...FIRE WEATHER ZONE 633 BLUE MOUNTAINS OF WASHINGTON. * TIMING...THIS AFTERNOON THROUGH LATE THIS EVENING. * THUNDERSTORMS...SCATTERED THUNDERSTORMS WILL DEVELOP THIS AFTERNOON OVER THE MOUNTAINS OF NORTHEAST OREGON AND SOUTHEAST WASHINGTON AND WILL CONTINUE THROUGH LATE THIS EVENING. * PRECIPITATION...THE STORMS ARE EXPECTED TO PRODUCE SOME RAINFALL BUT WILL GENERALLY BE LESS THAN ONE TENTH OF AN INCH. * LIGHTNING ACTIVITY LEVEL...LAL 3 WITH SOME STORMS POSSIBLY PRODUCING LAL 4. * IMPACTS...FREQUENT LIGHTNING AND CRITICALLY DRY FUELS MAY RESULT IN NUMEROUS FIRE STARTS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND VERY WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$ ORZ610-611-630-632-260600- /O.CON.KPDT.FW.W.0008.110825T1900Z-110826T0600Z/ EAST SLOPES OF CENTRAL OREGON CASCADES-DESCHUTES NATIONAL FOREST- CENTRAL MOUNTAINS OF OREGON- SOUTHERN BLUE AND STRAWBERRY MOUNTAINS- 1159 AM PDT THU AUG 25 2011 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 11 PM PDT THIS EVENING FOR THUNDERSTORMS PRODUCING ABUNDANT LIGHTNING ACROSS FIRE WEATHER ZONES OR610...OR611...OR630 AND OR632... A RED FLAG WARNING REMAINS IN EFFECT UNTIL 11 PM PDT THIS EVENING. * AFFECTED AREA...IN OREGON...FIRE WEATHER ZONE 610 EAST SLOPES OF CENTRAL OREGON CASCADES...FIRE WEATHER ZONE 611 DESCHUTES NATIONAL FOREST...FIRE WEATHER ZONE 630 CENTRAL MOUNTAINS OF OREGON AND FIRE WEATHER ZONE 632 SOUTHERN BLUE AND STRAWBERRY MOUNTAINS. * TIMING...FROM THIS AFTERNOON THROUGH LATE THIS EVENING. * THUNDERSTORMS...SCATTERED THUNDERSTORMS WILL DEVELOP AGAIN THIS AFTERNOON AND CONTINUE THROUGH THIS EVENING. * PRECIPITATION...THE STORMS ARE EXPECTED TO PRODUCE SOME RAINFALL BUT WILL GENERALLY BE LESS THAN ONE TENTH OF AN INCH. * LIGHTNING ACTIVITY LEVEL...LAL 3 WITH SOME STORMS POSSIBLY PRODUCING LAL 4. * IMPACTS...FREQUENT LIGHTNING AND CRITICALLY DRY FUELS MAY RESULT IN NUMEROUS FIRE STARTS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$ FOR MORE INFORMATION FROM NOAA/NATIONAL WEATHER SERVICE VISIT... HTTP://WEATHER.GOV/PENDLETON (ALL LOWER CASE)
849 WWUS86 KPDT 260453 RFWPDT URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE PENDLETON OR 953 PM PDT THU AUG 25 2011 ...SCATTERED THUNDERSTORMS POSSIBLE ACROSS THE AREA TONIGHT AND FRIDAY MORNING... .THUNDERSTORMS WILL DEVELOP AGAIN STARTING LATE THIS EVENING AND THEN OVERNIGHT IN THE COLUMBIA BASIN OF WASHINGTON AND OREGON AS WELL AS IN SOUTH CENTRAL WASHINGTON...INCLUDING THE YAKIMA VALLEY AND THE LOWER PORTION OF THE KITTITAS VALLEY. ANOTHER LOW PRESSURE SYSTEM WILL MOVE INTO NORTH CENTRAL OREGON LATER THIS EVENING AND THEN INTO CENTRAL WASHINGTON OVERNIGHT. ISOLATED TO SCATTERED THUNDERSTORMS WITH ABUNDANT LIGHTNING WILL THEREFORE BE POSSIBLE IN THESE AREAS THROUGH MID-MORNING FRIDAY. ORZ633>635-638-WAZ633-260600- /O.CAN.KPDT.FW.W.0007.000000T0000Z-110826T0600Z/ NORTHERN BLUE MOUNTAINS OF OREGON-EAGLE CAP DISTRICT- WALLOWA DISTRICT-BAKER VALLEY-BLUE MOUNTAINS OF WASHINGTON- 953 PM PDT THU AUG 25 2011 ...RED FLAG WARNING IS CANCELLED FOR THUNDERSTORMS PRODUCING ABUNDANT LIGHTNING ACROSS FIRE WEATHER ZONES OR633...OR634... OR635...OR638 AND WA633... THE NATIONAL WEATHER SERVICE IN PENDLETON HAS CANCELLED THE RED FLAG WARNING. THUNDERSTORMS ARE NOT EXPECTED DUE TO A DRIER AIR MASS MOVING THROUGH THE REGION THIS EVENING. $$ ORZ611-630-632-260600- /O.CAN.KPDT.FW.W.0008.000000T0000Z-110826T0600Z/ DESCHUTES NATIONAL FOREST-CENTRAL MOUNTAINS OF OREGON- SOUTHERN BLUE AND STRAWBERRY MOUNTAINS- 953 PM PDT THU AUG 25 2011 ...RED FLAG WARNING IS CANCELLED FOR THUNDERSTORMS PRODUCING ABUNDANT LIGHTNING ACROSS FIRE WEATHER ZONES OR611...OR630 AND OR632... THE NATIONAL WEATHER SERVICE IN PENDLETON HAS CANCELLED THE RED FLAG WARNING. THUNDERSTORMS ARE NOT EXPECTED DUE TO A DRIER AIR MASS MOVING THROUGH THE REGION THIS EVENING. $$ ORZ610-260600- /O.CON.KPDT.FW.W.0008.000000T0000Z-110826T0600Z/ EAST SLOPES OF CENTRAL OREGON CASCADES- 953 PM PDT THU AUG 25 2011 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 11 PM PDT THIS EVENING FOR THUNDERSTORMS PRODUCING ABUNDANT LIGHTNING ACROSS FIRE WEATHER ZONE OR610. A RED FLAG WARNING REMAINS IN EFFECT UNTIL 11 PM PDT THIS EVENING. * AFFECTED AREA...IN OREGON...FIRE WEATHER ZONE 610 EAST SLOPES OF CENTRAL OREGON CASCADES...FIRE WEATHER ZONE 611 DESCHUTES NATIONAL FOREST...FIRE WEATHER ZONE 630 CENTRAL MOUNTAINS OF OREGON AND FIRE WEATHER ZONE 632 SOUTHERN BLUE AND STRAWBERRY MOUNTAINS. * TIMING...FROM THIS AFTERNOON THROUGH LATE THIS EVENING. * THUNDERSTORMS...SCATTERED THUNDERSTORMS WILL DEVELOP AGAIN THIS AFTERNOON AND CONTINUE THROUGH THIS EVENING. * PRECIPITATION...THE STORMS ARE EXPECTED TO PRODUCE SOME RAINFALL BUT WILL GENERALLY BE LESS THAN ONE TENTH OF AN INCH. * LIGHTNING ACTIVITY LEVEL...LAL 3 WITH SOME STORMS POSSIBLY PRODUCING LAL 4. * IMPACTS...FREQUENT LIGHTNING AND CRITICALLY DRY FUELS MAY RESULT IN NUMEROUS FIRE STARTS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$ ORZ609-631-WAZ609-631-675-681-261300- /O.CON.KPDT.FW.W.0008.000000T0000Z-110826T1600Z/ EAST SLOPES OF NORTH OREGON CASCADES-COLUMBIA BASIN OF OREGON- EAST SLOPES OF THE SOUTHERN WASHINGTON CASCADES- LOWER COLUMBIA BASIN OF WASHINGTON- EASTERN WASHINGTON SOUTHERN COLUMBIA BASIN-YAKAMA ALPINE DISTRICT- 953 PM PDT THU AUG 25 2011 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 AM PDT FRIDAY FOR THUNDERSTORMS PRODUCING ABUNDANT LIGHTNING ACROSS FIRE WEATHER ZONES OR609...OR631...WA609...WA631...WA675 AND WA681... A RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 AM PDT FRIDAY. * AFFECTED AREA...IN OREGON...FIRE WEATHER ZONE 609 EAST SLOPES OF NORTH OREGON CASCADES AND WESTERN PORTIONS OF FIRE WEATHER ZONE 631 COLUMBIA BASIN OF OREGON. IN WASHINGTON...FIRE WEATHER ZONE 609 EAST SLOPES OF THE SOUTHERN WASHINGTON CASCADES... WESTERN PORTIONS OF FIRE WEATHER ZONE 631 LOWER COLUMBIA BASIN OF WASHINGTON...FIRE WEATHER ZONE 675 EASTERN WASHINGTON SOUTHERN COLUMBIA BASIN AND FIRE WEATHER ZONE 681 YAKIMA ALPINE DISTRICT. * TIMING...THUNDERSTORMS WILL MOVE INTO NORTH CENTRAL OREGON LATER THIS EVENING AND THEN INTO SOUTH CENTRAL WASHINGTON AFTER MIDNIGHT. STORMS WILL MOVE THROUGH CENTRAL WASHINGTON AND THEN DISSIPATE BY MID-MORNING FRIDAY. * THUNDERSTORMS...ISOLATED TO SCATTERED STORMS THAT COULD PRODUCE ABUNDANT LIGHTNING AND BRIEF GUSTY WINDS. * PRECIPITATION...GENERALLY LESS THAN ONE TENTH OF AN INCH. * LIGHTNING ACTIVITY LEVEL...LAL 3 WITH SOME STORMS POSSIBLY PRODUCING LAL 4. * IMPACTS...FREQUENT LIGHTNING AND CRITICALLY DRY FUELS MAY RESULT IN NUMEROUS FIRE STARTS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$ FOR MORE INFORMATION FROM NOAA/NATIONAL WEATHER SERVICE VISIT... HTTP://WEATHER.GOV/PENDLETON (ALL LOWER CASE)
What forecasters said that day
The local office's own words before this red flag warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Pendleton, OR wrote its last area forecast discussion before this red flag warning went out at Aug 23, 10:44 PM PDT, 3 hours 36 minutes earlier.
Area forecast discussion, Aug 23, 10:44 PM PDT, 3 hours 36 minutes before
AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE PENDLETON OR
1044 PM PDT TUE AUG 23 2011
UPDATED AVIATION DISCUSSION
.SHORT TERM...TONIGHT THROUGH WEDNESDAY NIGHT...AN MID/UPPER LEVEL
LOW OFF THE SOUTHERN CALIFORNIA COAST WILL EVOLVE INTO AN OPEN SHORT
WAVE OVER THE NEXT 24 HOURS AS IT MOVES NORTHWARD. THE SHORT WAVE
WILL REACH SOUTHWEST OREGON WEDNESDAY AFTERNOON AND THEN MOVE
NORTHEASTWARD INTO CENTRAL OREGON WEDNESDAY EVENING AND THEN ACROSS
NORTHEAST OREGON OVERNIGHT. THIS DISTURBANCE WILL BRING SUBTROPICAL
MOISTURE INTO CENTRAL OREGON WEDNESDAY AFTERNOON/EVENING...WHICH
WILL COMBINE WITH DAYTIME SURFACE HEATING TO DESTABILIZE THE
ATMOSPHERE AND SET THE STAGE FOR SCATTERED THUNDERSTORMS WITH
ABUNDANT LIGHTNING WEDNESDAY AFTERNOON/EVENING IN CENTRAL...EAST
CENTRAL AND NORTHEAST OREGON AND IN THE BLUE MOUNTAINS OF SOUTHEAST
WASHINGTON. AS SUCH A FIRE WEATHER WATCH IS IN EFFECT FOR WEDNESDAY
AFTERNOON/EVENING FOR THUNDERSTORMS PRODUCING ABUNDANT LIGHTNING.
FOR MORE INFORMATION SEE PRODUCT PDXRFWPDT (WMO HEADER WWUS86 KPDT).
IN ADDITION...THERE WILL BE SUFFICIENT VERTICAL WIND SHEAR FOR SOME
THUNDERSTORMS IN CENTRAL OREGON TO BECOME STRONG OR POSSIBLY SEVERE
WEDNESDAY AFTERNOON/EVENING. THE MAIN THREAT WILL BE GUSTY WINDS AND
LARGE HAIL.
THE CHANCE FOR THUNDERSTORMS WILL SPREAD NORTH AND NORTHEAST ACROSS
NORTH CENTRAL AND NORTHEAST OREGON LATE WEDNESDAY AFTERNOON AND
EVENING. POLAN
&&
.AVIATION...06Z TAFS...VFR CONDITIONS WILL CONTINUE FOR THE NEXT 18
HOURS UNDER MOSTLY CLEAR SKIES. LOOK FOR INCREASING MID LEVEL CLOUDS
WITH BASES AROUND 12000-15000 FT AGL WEDNESDAY AFTERNOON SPREADING
NORTHWARD AS THE AFTERNOON WEARS ON. WINDS WILL BE LIGHT DRAINAGE
WINDS UP TO AROUND 8 KTS OVERNIGHT AND THEN INCREASE AND BECOME
UPSLOPE TERRAIN DRIVEN WINDS OF 5-15 KTS BY LATE WEDNESDAY MORNING.
NO REAL CHANGE ON WEDNESDAY OTHER THAN THE POSSIBILITY OF SOME CB
AND THUNDERSTORMS IN THE AFTERNOON AND EVENING. THIS WILL MAINLY
IMPACT KRDM...KBDN...KPDT AND KALW. POLAN
.PREVIOUS DISCUSSION... /ISSUED 231 PM PDT TUE AUG 23 2011/
SHORT TERM...TONIGHT THROUGH FRIDAY...A RIDGE OF HIGH PRESSURE WILL
DOMINATE THE AREA'S WEATHER WITH DRY CONDITIONS TONIGHT AND
WEDNESDAY MORNING.
THE CHALLENGE WILL BE WITH THE TIMING OF SOME MID LEVEL
MOISTURE...PWATS AROUND AN INCH...ALONG WITH AN UPPER LEVEL JET AND
A WEAK DISTURBANCE APPROACHING OREGON WEDNESDAY AFTERNOON. THE
COMBINATION OF THESE THREE WILL MAKE THE ATMOSPHERE INCREASINGLY
UNSTABLE AND TSRA ARE POSSIBLE AROUND CENTRAL OREGON WEDNESDAY
AFTERNOON. THIS AREA IS EXPECTED TO EXPAND IN COVERAGE WEDNESDAY
EVENING AND MOVE INTO THE BASIN/JOHN DAY HIGHLANDS AND BLUE/WALLOWA
MOUNTAIN AREAS BY WEDNESDAY EVENING. SOME OF THE STORMS COULD BECOME
STRONG AND PRODUCE GUSTY WINDS AND HAIL. THE CONVECTION SHOULD
DECREASE IN COVERAGE AND THE SHOWERS ARE EXPECTED TO PERSIST
OVERNIGHT.
BY THURSDAY THE MOISTURE CONTINUES AND WITH DAYTIME HEATING TSRA ARE
EXPECTED TO DEVELOP AGAIN ACROSS THE AREA. A LOW PRESSURE SYSTEM OFF
THE OR COAST WILL TRACK INLAND FRIDAY AND THEN ACROSS THE SOUTHERN
PORTIONS OF THE REGION FRIDAY NIGHT. THE LOCATION OF THE TRACK HAS
BEEN DRIFTING FURTHER SOUTH WITH EACH MODEL RUN. HOWEVER TSRA ARE
STILL POSSIBLE ALONG THE OR CASCADES FRIDAY AFTN/EVEN.
AFTERNOON HIGH TEMPERATURES ARE EXPECTED TO REMAIN ABOVE NORMAL
THROUGH THE END OF THE WEEK.
LONG TERM...FRIDAY NIGHT THROUGH TUESDAY...AFTER A WEAK SYSTEM
MOVES THROUGH THE REGION FRIDAY NIGHT IT LOOKS THE A COOLER AND DRY
WEST TO NORTHWEST FLOW WILL ENSUE. THERE WILL LIKELY BE A COUPLE OF
WEAK FRONTAL SYSTEMS CLIPPING THE REGION WHICH WILL RESULT IN SOME
BREEZY PERIODS BUT OTHER THAN THAT NOT SEEING PRECIPITATION THREAT
DURING THE EXTENDED PERIOD.
FIRE WEATHER...A FIRE WEATHER WATCH IS IN EFFECT FOR WEDNESDAY
AFTERNOON AND EVENING FOR CENTRAL AND NORTHEAST OREGON. THIS WILL
COVER THE CENTRAL OREGON CASCADES NORTHEAST ACROSS THE JOHN DAY
HIGHLANDS AND BLUES TO WALLOWA COUNTY. THE WATCH IS IN EFFECT FOR
ABUNDANT LIGHTNING AND DRY FUELS. AN UPPER LEVEL TROUGH WILL BE
MOVING THROUGH THE AREA AND WILL GENERATE THUNDERSTORMS IN THE
AFTERNOON AND EVENING. SOME OF THE LONGER LIVED STORMS WILL PRODUCE
LAL 3 OR POSSIBLE 4. THE STORMS SHOULD DIMINISH OR MOVE EAST OUT THE
THE FORECAST AREA BY MIDNIGHT. 94
&&
.PRELIMINARY POINT TEMPS/POPS...
PDT 56 91 60 90 / 0 20 20 20
ALW 61 92 63 90 / 0 10 20 20
PSC 58 93 59 92 / 0 10 20 10
YKM 54 89 57 88 / 10 10 20 10
HRI 57 92 61 91 / 0 20 20 10
ELN 54 89 58 87 / 10 10 20 10
RDM 46 90 52 88 / 0 30 30 20
LGD 49 92 55 87 / 0 10 20 20
GCD 49 91 54 86 / 0 30 30 20
DLS 59 92 61 88 / 0 20 30 10
&&
.PDT WATCHES/WARNINGS/ADVISORIES...
OR...FIRE WEATHER WATCH FROM WEDNESDAY AFTERNOON THROUGH WEDNESDAY
EVENING ORZ042-049-050-502-503-505>507-509.
WA...FIRE WEATHER WATCH FROM WEDNESDAY AFTERNOON THROUGH WEDNESDAY
EVENING WAZ030.
&&
THREAT INDEX
WEDNESDAY : YELLOW
THURSDAY : GREEN
FRIDAY : GREEN
GREEN: NONE OR LIMITED NEED FOR WATCHES, WARNINGS, OR ADVISORIES.
YELLOW: A FEW WATCHES, WARNINGS, OR ADVISORIES POSSIBLE OR IN EFFECT.
RED: NUMEROUS WATCHES, WARNINGS, OR ADVISORIES POSSIBLE OR IN EFFECT.
FOR ADDITIONAL WEATHER INFORMATION, CHECK OUR WEB SITE AT...
WWW.WEATHER.GOV/PENDLETON
99/97/91Hazardous weather outlook, Aug 23, 8:30 PM PDT, 5 hours 50 minutes before
HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE PENDLETON OR
830 PM PDT TUE AUG 23 2011
UPDATED THIRD AND FOURTH PARAGRAPHS IN DAYS TWO THROUGH SEVEN
DISCUSSION.
ORZ041-042-044-049-050-502-503-505>509-WAZ024-026>030-520-521-
241415-
EASTERN COLUMBIA RIVER GORGE OF OREGON-NORTH CENTRAL OREGON-
LOWER COLUMBIA BASIN OF OREGON-GRANDE RONDE VALLEY-WALLOWA COUNTY-
NORTHERN BLUE MOUNTAINS OF OREGON-
SOUTHERN BLUE MOUNTAINS OF OREGON-JOHN DAY BASIN-OCHOCO-
JOHN DAY HIGHLANDS-
FOOTHILLS OF THE NORTHERN BLUE MOUNTAINS OF OREGON-
FOOTHILLS OF THE SOUTHERN BLUE MOUNTAINS OF OREGON-
EAST SLOPES OF THE OREGON CASCADES-
EASTERN COLUMBIA RIVER GORGE OF WASHINGTON-KITTITAS VALLEY-
YAKIMA VALLEY-LOWER COLUMBIA BASIN OF WASHINGTON-
FOOTHILLS OF THE BLUE MOUNTAINS OF WASHINGTON-
NORTHWEST BLUE MOUNTAINS OF WASHINGTON-
EAST SLOPES OF THE WASHINGTON CASCADES-SIMCOE HIGHLANDS-
830 PM PDT TUE AUG 23 2011
THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL AND NORTHEAST OREGON
AS WELL AS SOUTH CENTRAL AND SOUTHEAST WASHINGTON.
.DAY ONE...TONIGHT
THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW.
HIGH PRESSURE BEGINS TO REBUILD OVER THE AREA TONIGHT WITH PARTLY
CLOUDY SKIES BECOMING MOSTLY CLEAR BY LATE AFTERNOON TO EARLY
EVENING.
.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY
WEDNESDAY AFTERNOON AND EVENING...FIRE WEATHER WATCH
FOR THUNDERSTORMS PRODUCING ABUNDANT LIGHTNING
BLUE MOUNTAINS OF WASHINGTON, NORTH CENTRAL OREGON SOUTH OF
SHANIKO, EAST SLOPES OF THE OREGON CASCADES, WALLOWA COUNTY,
GRANDE RONDE VALLEY, NORTHERN BLUE MOUNTAINS OF OREGON,
SOUTHERN BLUE MOUNTAINS OF OREGON, JOHN DAY BASIN,
OCHOCO-JOHN DAY HIGHLANDS
CONTACT YOUR LOCAL FOREST OR LAND MANAGEMENT AGENCY FOR
CURRENT FIRE DANGER CONDITIONS IN YOUR AREA.
WEDNESDAY AFTERNOON AND WEDNESDAY NIGHT...CHANCE OF THUNDERSTORMS
EAST SLOPES OF THE WASHINGTON CASCADES, SIMCOE HIGHLANDS,
EASTERN COLUMBIA RIVER GORGE OF WASHINGTON, KITTITAS VALLEY,
YAKIMA VALLEY, LOWER COLUMBIA BASIN OF WASHINGTON, FOOTHILLS
OF THE BLUE MOUNTAINS OF WASHINGTON, NORTHWEST BLUE MOUNTAINS
OF WASHINGTON, EASTERN COLUMBIA RIVER GORGE OF OREGON, NORTH
CENTRAL OREGON, EAST SLOPES OF THE OREGON CASCADES, LOWER
COLUMBIA BASIN OF OREGON, FOOTHILLS OF THE NORTHERN BLUE
MOUNTAINS OF OREGON, FOOTHILLS OF THE SOUTHERN BLUE MOUNTAINS
OF OREGON
AN UPPER LEVEL LOW OFF THE SOUTHERN CALIFORNIA COAST WILL EVOLVE
INTO AN OPEN MID/UPPER LEVEL SHORT WAVE OVER THE NEXT 24 HOURS AS IT
MOVES NORTHWARD. THE SHORT WAVE WILL REACH SOUTHWEST OREGON
WEDNESDAY AFTERNOON AND THEN MOVE NORTHEASTWARD INTO CENTRAL OREGON
WEDNESDAY EVENING AND THEN ACROSS NORTHEAST OREGON OVERNIGHT. THE
SHORT WAVE WILL BRING SUBTROPICAL MOISTURE INTO CENTRAL OREGON
WEDNESDAY AFTERNOON/EVENING...WHICH WILL COMBINE WITH DAYTIME
SURFACE HEATING...WHICH WILL DESTABILIZE THE ATMOSPHERE AND SET THE
STAGE FOR SCATTERED THUNDERSTORMS WITH ABUNDANT LIGHTNING WEDNESDAY
AFTERNOON/EVENING IN CENTRAL...EAST CENTRAL AND NORTHEAST OREGON AND
IN THE BLUE MOUNTAINS OF SOUTHEAST WASHINGTON. AS SUCH A FIRE
WEATHER WATCH IS IN EFFECT FOR WEDNESDAY AFTERNOON/EVENING FOR
THUNDERSTORMS PRODUCING ABUNDANT LIGHTNING IN THE AREAS LISTED
ABOVE. FOR ADDITIONAL INFORMATION...SEE NWS PRODUCT PDXRFWPDT (WMO
HEADER WWUS86 KPDT).
IN ADDITION...THERE WILL BE SUFFICIENT VERTICAL WIND SHEAR FOR SOME
THUNDERSTORMS IN CENTRAL OREGON TO BECOME STRONG OR POSSIBLY SEVERE
WEDNESDAY AFTERNOON/EVENING. THE MAIN THREAT WILL ISOLATED DAMAGING
WINDS AND LARGE HAIL.
THE CHANCE FOR THUNDERSTORMS WILL SPREAD NORTH AND NORTHEAST ACROSS
NORTH CENTRAL AND NORTHEAST OREGON LATE WEDNESDAY AFTERNOON AND
EVENING.
HIGH PRESSURE WILL DOMINATE THE PACIFIC NORTHWEST FOR THE REST OF
THE WEEK...AND THROUGH THE WEEKEND INTO MONDAY. ALTHOUGH TIMING AND
POSITION ARE STILL UNCERTAIN THERE WILL BE A COUPLE OF EMBEDDED
DISTURBANCES IN THE UPSTREAM WESTERLY FLOW ALOFT OVER THE NORTHEAST
PACIFIC THAT MAY PRODUCE A SLIGHT CHANCE FOR THUNDERSTORMS ACROSS
CENTRAL OREGON AND THE MOUNTAINS OF NORTHEAST OREGON. OTHERWISE...
WARM TEMPERATURES WILL CONTINUE WITH MOSTLY DRY WEATHER.
.SPOTTER INFORMATION STATEMENT...
SPOTTER ACTIVATION MAY BE REQUIRED WEDNESDAY AFTERNOON AND EVENING
FOR THUNDERSTORMS...ESPECIALLY IN CENTRAL...NORTH CENTRAL AND
NORTHEAST OREGON.
WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.
GRAPHICAL FORECASTS OF WEATHER HAZARDS OUT TO SEVEN DAYS
ARE DISPLAYED ON THE WORLD WIDE WEB AT:
WWW.WRH.NOAA.GOV/PDT/CURRENTHAZARDS/HWO.HTML
ALL LETTERS IN THE ABOVE URL ARE LOWER CASE.
POLANThe office that day
Everything else NWS Pendleton, OR issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 24, 4:50 PM PDT | Special Weather Statement | PDT | Jefferson | 55 min |
Nearby
Red Flag Warnings in Washington, 2011Red Flag Warnings in Oregon, 2011Every red flag warning in 2011
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.