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| Red Flag Warnings and Fire Weather Watches posted throughout much of the Western United States for Dry Lightning. |
URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE EUREKA CA 1117 AM PDT SUN JUL 25 2010 PRECAUTIONARY/PREPAREDNESS ACTIONS... A FIRE WEATHER WATCH MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE FORECAST TO OCCUR. LISTEN FOR LATER FORECASTS AND POSSIBLE RED FLAG WARNINGS. A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. CONTINUE TO CHECK WEATHER.GOV/ELKO FOR UPDATES. WESTERN PORTION OF THE SHASTA TRINITY NATIONAL FOREST.- 1117 AM PDT SUN JUL 25 2010 ...FIRE WEATHER WATCH NOW IN EFFECT FROM 3 PM PDT THIS AFTERNOON THROUGH MONDAY EVENING FOR DRY THUNDERSTORMS AND GUSTY OUTFLOW WINDS FOR FIRE ZONE 283... THE FIRE WEATHER WATCH IS NOW IN EFFECT FROM 3 PM PDT THIS AFTERNOON THROUGH MONDAY EVENING. * AFFECTED AREA: FIRE ZONE 283 * DRY THUNDERSTORMS: THUNDERSTORMS ARE EXPECTED TO DEVELOP BY SUNDAY AFTERNOON. WHILE THESE WILL INITIALLY BE ISOLATED IN NATURE...LITTLE OR NO RAIN IS EXPECTED. ADDITIONALLY... THUNDERSTORM ACTIVITY MAY PERSIST INTO THE OVERNIGHT HOURS. THUNDERSTORMS ARE EXPECTED TO CONTINUE THROUGH MONDAY. * OUTFLOW WINDS: GUSTY WINDS TO 35 MPH MAY ACCOMPANY DRY THUNDERSTORMS. THE GREATEST THREAT FOR THUNDERSTORM INDUCED OUTFLOW IS LATE THIS AFTERNOON THROUGH THIS EVENING BEFORE GREATER MOISTURE ARRIVES. * IMPACTS: GIVEN RECEPTIVE FUELS...ESPECIALLY AT MIDDLE AND LOWER ELEVATIONS...AND MINIMAL RAINFALL INITIALLY...LIGHTNING MAY RESULT IN WILDFIRE STARTS. WHILE WETTING RAINS MAY ACCOMPANY THUNDERSTORMS TODAY...LIGHTNING AWAY FROM THE CORE MAY RESULT IN ADDITIONAL WILDFIRE STARTS.
CENTRAL LANDER AND EUREKA COUNTIES- LANDER/EUREKA COUNTIES SOUTH OF HIGHWAY 50 PLUS NORTHERN NYE COUNTY-CENTRAL AND WESTERN HUMBOLDT COUNTY- EASTERN HUMBOLDT COUNTY AND NORTHWESTERN ELKO COUNTY- ...RED FLAG WARNING IN EFFECT UNTIL 9 PM PDT THIS EVENING FOR DRY THUNDERSTORMS AND GUSTY OUTFLOW WINDS FOR FIRE ZONES 454...457... 467 AND 468... ...FIRE WEATHER WATCH NOW IN EFFECT FROM 9 PM PDT THIS EVENING THROUGH MONDAY AFTERNOON FOR DRY THUNDERSTORMS AND GUSTY OUTFLOW WINDS FOR FIRE ZONES 454...457... 467 AND 468.... THE NATIONAL WEATHER SERVICE IN ELKO HAS ISSUED A RED FLAG WARNING FOR DRY THUNDERSTORMS AND GUSTY OUTFLOW WINDS FOR FIRE ZONES 454...457... 467 AND 468...WHICH IS IN EFFECT UNTIL 9 PM PDT THIS EVENING. THE FIRE WEATHER WATCH IS NOW IN EFFECT FROM 9 PM PDT THIS EVENING THROUGH MONDAY AFTERNOON FOR DRY THUNDERSTORMS AND GUSTY OUTFLOW WINDS FOR FIRE ZONES 454...457... 467 AND 468... THIS RED FLAG WARNING AND FIRE WEATHER WATCH IS FOR THE FOLLOWING FIRE WEATHER ZONES: 454 - LANDER AND EUREKA COUNTIES BETWEEN I-80 AND HIGHWAY 50 457 - NORTHERN NYE COUNTY AND SOUTH OF HIGHWAY 50 IN LANDER AND EUREKA COUNTIES 468 - EASTERN HUMBOLDT COUNTY AND NORTHWESTERN ELKO COUNTY 469 - SOUTHWESTERN AND CENTRAL ELKO COUNTY * DRY THUNDERSTORMS: ISOLATED TO SCATTERED DRY THUNDERSTORMS ARE EXPECTED TO BEGIN LATER THIS AFTERNOON. THUNDERSTORMS WILL TRANSITION FROM DRY TO WET FROM WEST TO EAST BEGINNING MONDAY AFTERNOON. * OUTFLOW WINDS: ERRATIC OUTFLOW WINDS IN EXCESS OF 45 MPH ARE POSSIBLE WITH THE STRONGER THUNDERSTORMS. * IMPACTS: LIGHTNING FROM THUNDERSTORMS MAY CREATE NEW FIRE STARTS AND COMBINE WITH STRONG OUTFLOW WINDS TO PRODUCE RAPID FIRE GROWTH. WHITE PINE COUNTY-SOUTHWESTERN AND CENTRAL ELKO COUNTY- EASTERN ELKO COUNTY- THE FIRE WEATHER WATCH IS NOW IN EFFECT FROM 9 PM PDT THIS EVENING THROUGH MONDAY AFTERNOON FOR DRY THUNDERSTORMS AND GUSTY OUTFLOW WINDS FOR FIRE ZONES 455...469 AND 470. THIS FIRE WEATHER WATCH IS FOR THE FOLLOWING FIRE WEATHER ZONES: 455 - WHITE PINE COUNTY 469 - SOUTHWESTERN AND CENTRAL ELKO COUNTY 470 - EASTERN ELKO COUNTY * DRY THUNDERSTORMS: ISOLATED TO SCATTERED DRY THUNDERSTORMS ARE POSSIBLE SUNDAY EVENING THROUGH MONDAY. THUNDERSTORMS WILL TRANSITION FROM DRY TO WET FROM WEST TO EAST BEGINNING MONDAY AFTERNOON. * OUTFLOW WINDS: ERRATIC OUTFLOW WINDS OF 45 MPH ARE POSSIBLE WITH THE STRONGER THUNDERSTORMS. * IMPACTS: LIGHTNING FROM THUNDERSTORMS MAY CREATE NEW FIRE STARTS AND COMBINE WITH STRONG OUTFLOW WINDS TO PRODUCE RAPID FIRE GROWTH. Utah: SANPETE AND SEVIER VALLEYS-WEST CENTRAL DESERTS AND MOUNTAINS- SOUTHWEST DESERTS AND MOUNTAINS- .AFTER A PROLONGED DRY SPELL ACROSS MUCH OF THE REGION...MOISTURE IS FORECAST TO SURGE NORTHWARD ACROSS MUCH OF UTAH MONDAY INTO MONDAY NIGHT. SCATTERED DRY THUNDERSTORMS ACCOMPANIED BY STRONG MICROBURST WINDS CAN BE EXPECTED MONDAY AFTERNOON INTO MONDAY EVENING WITH THIS INITIAL SURGE OF MOISTURE ACROSS MOST WESTERN AND CENTRAL VALLEYS. DEEP MOISTURE IS EXPECTED TO QUICKLY MOVE NORTH INTO THE AREA MONDAY NIGHT INTO TUESDAY...ALLOWING FOR A TRANSITION TO WET THUNDERSTORMS FOR THE REMAINDER OF THE WEEK...AS WELL AS MUCH HIGHER RH VALUES. ...FIRE WEATHER WATCH IN EFFECT FROM MONDAY AFTERNOON THROUGH MONDAY EVENING FOR DRY THUNDERSTORMS AND GUSTY OUTFLOW WINDS FOR FIRE ZONES 433...434 AND 435... * AFFECTED AREA: FIRE ZONE 433 SANPETE AND SEVIER VALLEYS... FIRE ZONE 434 WEST CENTRAL DESERTS AND MOUNTAINS...FIRE ZONE 435 SOUTHWEST DESERTS AND MOUNTAINS. * THUNDERSTORMS: SCATTERED DRY THUNDERSTORMS ARE EXPECTED TO DEVELOP MONDAY AFTERNOON ACROSS THE VALLEYS OF WEST CENTRAL AND SOUTHWEST UTAH...AND CONTINUE INTO MONDAY EVENING. DRY LIGHTNING...WITH LITTLE IF ANY MEASURABLE RAINFALL...CAN BE EXPECTED THROUGH MONDAY EVENING. * OUTFLOW WINDS: STRONG MICROBURST WINDS...WITH GUSTS IN EXCESS OF 50 MPH...WILL BE POSSIBLE WITH THUNDERSTORMS MONDAY AFTERNOON AND EVENING. * IMPACTS: DRY LIGHTNING MAY CAUSE NUMEROUS FIRE STARTS MONDAY AFTERNOON AND EVENING...WITH GUSTY MICROBURST WINDS RESULTING IN ERRATIC FIRE BEHAVIOR.1200Z-100727T0600Z/ SISKIYOU MOUNTAINS-EASTERN ROGUE VALLEY-SOUTHERN OREGON CASCADES- KLAMATH BASIN AND THE FREMONT-WINEMA NATIONAL FOREST- 244 AM PDT SUN JUL 25 2010 ...RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM THIS MORNING TO 5 AM PDT MONDAY FOR LIGHTNING WITH INSUFFICIENT MOISTURE FOR FIRE ZONES 621...622...623...AND 624... FIRE WEATHER WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH MONDAY EVENING FOR LIGHTNING WITH INSUFFICIENT MOISTURE FOR FIRE ZONES 621...622...623...AND 624... * THUNDERSTORMS: SCATTERED THUNDERSTORMS ARE EXPECTED. STORMS WILL START OUT SOMEWHAT DRY THIS AFTERNOON...BUT WILL BECOME MORE WET WITH TIME INTO THIS EVENING. MONDAY STORMS WILL BE WET...WITH LOCALLY HEAVY RAIN POSSIBLE. * OUTFLOW WINDS: OUTFLOW WIND GUSTS OF 30 TO 45 MPH ARE POSSIBLE IN AND NEAR STRONG THUNDERSTORM CELLS. THE STRONGEST WINDS GUSTS ARE EXPECTED EAST OF THE CASCADES. * IMPACTS: DUE TO HIGH FIRE DANGER WITH DRY TO VERY DRY FUELS SCATTERED LIGHTNING WILL RESULT IN A HIGH PROBABILITY OF A SIGNIFICANT NUMBER OF NEW FIRE STARTS. * TIMING: MOISTURE AND INSTABILITY WILL BEGIN TO ARRIVE FROM THE SOUTH THIS MORNING WITH THUNDERSTORMS DEVELOPING BY THIS AFTERNOON AND INCREASING INTO THIS EVENING. A DECREASE IN ACTIVITY IS EXPECTED IN THE OVERNIGHT AND MORNING MONDAY... BUT STORMS WILL INCREASE AGAIN MONDAY AFTERNOON AND EVENING. ...SCATTERED THUNDERSTORMS WILL POSE A FIRE THREAT TODAY THROUGH MONDAY OVER PORTIONS OF NORTHERN CALIFORNIA AND SOUTHERN OREGON... .SOUTH FLOW WITH AMPLE MOISTURE AND INSTABILITY WILL LEAD TO DEVELOPING THUNDERSTORMS OVER PARTS OF THE REGION THIS AFTERNOON. SOME STORMS WILL BEGIN DRY...BUT THE ATMOSPHERE WILL MOISTEN WITH TIME INTO TONIGHT. ACTIVITY SHOULD DECREASE LATER TONIGHT...BUT WILL INCREASE AGAIN IN A SIMILAR FASHION MONDAY AFTERNOON AND EVENING. SOUTH CENTRAL OREGON DESERT INCLUDING THE BLM LAND IN EASTERN LAKE AND WESTERN HARNEY COUNTIES- ...RED FLAG WARNING IN EFFECT FROM 11 AM THIS MORNING TO 5 AM PDT MONDAY FOR LIGHTNING WITH INSUFFICIENT MOISTURE FOR FIRE ZONE 625... ...FIRE WEATHER WATCH NOW IN EFFECT FROM LATE TONIGHT THROUGH MONDAY EVENING FOR LIGHTNING WITH INSUFFICIENT MOISTURE FOR FIRE ZONE 625... * AFFECTED AREA: FIRE ZONE 625 * THUNDERSTORMS: SCATTERED THUNDERSTORMS ARE EXPECTED. STORMS WILL START OUT SOMEWHAT DRY LATE THIS MORNING...BUT WILL BECOME MORE WET WITH TIME INTO THIS EVENING. STORMS ARE EXPECTED TO WEAKEN OVERNIGHT. * OUTFLOW WINDS: OUTFLOW WIND GUSTS OF 30 TO 45 MPH ARE POSSIBLE IN AND NEAR STRONG THUNDERSTORM CELLS. * IMPACTS: DUE TO HIGH FIRE DANGER WITH DRY TO VERY DRY FUELS SCATTERED LIGHTNING WILL RESULT IN A HIGH PROBABILITY OF A SIGNIFICANT NUMBER OF NEW FIRE STARTS. * TIMING: MOISTURE AND INSTABILITY WILL BEGIN TO ARRIVE FROM THE SOUTH EARLY THIS MORNING WITH THUNDERSTORMS DEVELOPING BY LATE THIS MORNING AND INCREASING THIS AFTERNOON AND INTO THIS EVENING. A DECREASE IN ACTIVITY IS EXPECTED IN THE OVERNIGHT HOURS...BUT STORMS WILL INCREASE AGAIN MONDAY AFTERNOON AND EVENING AND WILL BE WETTER.

