automated:SPC Day 1 Fire Weather Outlook SPC Day 1 Fire Weather Outlook DAY 1 FIRE WEATHER OUTLOOK NWS STORM PREDICTION CENTER NORMAN OK 0309 AM CDT TUE OCT 14 2014 VALID 141200Z - 151200Z ...CRITICAL FIRE WEATHER AREA FOR CNTRL NV... ...SYNOPSIS... VERTICALLY STACKED UPPER LOW -- AND STRONG MID/UPPER-LEVEL FLOW WITHIN THE TROUGH SURROUNDING THIS UPPER LOW -- WILL CONTINUE SLOWLY EWD. THIS SYSTEM IS EXPECTED TO COVER MUCH OF THE ERN CONUS BY 12Z/WED. FARTHER W...A STRONG SHORTWAVE TROUGH WILL MOVE INTO THE PACIFIC NW. ENHANCED SWLY FLOW ALOFT AHEAD OF THIS SYSTEM WILL SPREAD EWD INTO THE NRN GREAT BASIN AND NRN ROCKIES. 500-MB FLOW AROUND 80 KT IS POSSIBLE OVER NRN CA...S-CNTRL/SE OREGON...AND NW NV DURING THE AFTERNOON. AT THE SURFACE...OCCLUDED LOW WILL SLOWLY PROGRESS EWD ACROSS IL WHILE AN ASSOCIATED COLD FRONT MOVES EWD ACROSS THE TN AND OH VALLEYS AND SOUTHEAST STATES. BY 12Z/WED...THIS COLD FRONT IS EXPECTED TO EXTEND FROM WRN PA SWD INTO CNTRL FL. WEAK CYCLOGENESIS IS ANTICIPATED OVER CNTRL OREGON DURING AFTERNOON WITH THE RESULTANT LOW THEN TRANSLATING QUICKLY NEWD ACROSS NRN ID AND FAR NW MT OVERNIGHT. ...MOST OF NV...NE CA... SURFACE PRESSURE GRADIENT IS EXPECTED TO TIGHTEN THROUGHOUT THE DAY AS CYCLOGENESIS OCCURS ACROSS CNTRL OREGON. IN TANDEM...SWLY FLOW ALOFT WILL INCREASE AS THE SHORTWAVE TROUGH APPROACHES. AS A RESULT...STRONG SWLY WINDS ARE ANTICIPATED THROUGHOUT MUCH OF THE ATMOSPHERE...INCLUDING THE SURFACE. SURFACE WINDS WILL LIKELY BE STRONGEST ALONG THE NV/CA BORDER AND NEWD INTO SERN OREGON. HERE...SUSTAINED WIND SPEEDS NEAR 35 MPH WITH GUSTS UP TO 50 MPH ARE EXPECTED. FARTHER S AND W...UPPER SUPPORT WILL BE WEAKER BUT SUSTAINED WIND SPEEDS WILL STILL BE NEAR 20-25 MPH WITH GUSTS AROUND 35 MPH. A SEASONABLY DRY AIRMASS EXISTS OVER THE REGION AND RH VALUES ARE EXPECTED TO DROP BELOW 15 PERCENT ACROSS MUCH OF NV. AREAS ALONG THE CA/NV BORDER WILL EXPERIENCE SLIGHTLY HIGHER DEWPOINTS AND SLIGHTLY LOWER TEMPERATURES...LIKELY KEEPING RH VALUES ABOVE 20 PERCENT. DOWNSLOPE EFFECTS IN SE OREGON ARE EXPECTED TO PUSH TEMPERATURES INTO THE MID 70S WITH MIN RH VALUES AROUND 15 TO 20 PERCENT. THE COMBINATION OF DRY FUELS...LOW RH...AND STRONG WINDS WILL RESULT IN CRITICAL FIRE WEATHER CONDITIONS ACROSS CNTRL NV. AREAS SURROUNDING THE CRITICAL WILL LIKELY EXPERIENCE ELEVATED FIRE WEATHER CONDITIONS IN AREAS WHERE FUELS ARE DRY. ..MOSIER.. 10/14/2014 ...PLEASE SEE http://ift.tt/KCM4Ij FOR GRAPHIC PRODUCT... Read more

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