| D3 | Sun, Oct 19, 2008 - Mon, Oct 20, 2008 | D6 | Wed, Oct 22, 2008 - Thu, Oct 23, 2008 |
| D4 | Mon, Oct 20, 2008 - Tue, Oct 21, 2008 | D7 | Thu, Oct 23, 2008 - Fri, Oct 24, 2008 |
| D5 | Tue, Oct 21, 2008 - Wed, Oct 22, 2008 | D8 | Fri, Oct 24, 2008 - Sat, Oct 25, 2008 |
| (All days are valid from 12 UTC - 12 UTC) | |||
ZCZC SPCFWDD38 ALL FNUS28 KWNS 170858 DAY 3-8 FIRE WEATHER OUTLOOK NWS STORM PREDICTION CENTER NORMAN OK 0358 AM CDT FRI OCT 17 2008 VALID 191200Z - 251200Z ...DISCUSSION... ON SUN D3...A RATHER WEAK UPPER TROUGH WILL BE LOCATED OVER THE DESERT SW...WHILE AN UPPER TROUGH EXITS THE MID ATLANTIC. A DRY AIR MASS WILL REMAIN OVER SRN CA...NV AND AZ...BUT FLOW WILL BE ONSHORE. TO THE SE...HIGH PRESSURE WILL MAKE FOR A LARGE AREA OF DRY AND COOL WEATHER ACROSS THE OH/TN VALLEYS...MID ATLANTIC AND SE STATES. MARGINAL FIRE WEATHER CONCERNS MAY ARISE OVER AL...GA...AND NRN FL DUE TO 10-15 MPH WIND AND LOW RH. ON MON D4...A POWERFUL UPPER TROUGH WILL MOVE INTO THE PACIFIC NW. A STRONG COLD FRONT WILL SURGE EWD ACROSS ERN OR...ID AND NWRN NV WITH WINDS SHIFTING TO THE W. SUSTAINED WIND SPEEDS AHEAD OF THE FRONT MAY NOT REACH CRITICAL CRITERIA...AND...TEMPERATURES WILL BE RELATIVELY COOL WITH HIGHS IN THE 60S F. HOWEVER...SHIFTING WINDS IN THE VICINITY OF ANY FIRES COULD POSE A HAZARD. THE UPPER TROUGH WILL DIG SEWD ON TUE D5...WITH THE COLD FRONT DROPPING SWD ACROSS NRN CA. DRY OFFSHORE FLOW AND LOW HUMIDITY MAY CREATE CRITICAL FIRE CONDITIONS FOR MUCH OF NRN CA. NLY WINDS AROUND 15 MPH WITH HIGHER GUSTS ARE EXPECTED DURING THE DAY ON TUE...WITH GUSTY WINDS AND POOR RH RECOVERY OVERNIGHT. FARTHER S ON D5...HIGH PRESSURE WILL CONTINUE TO MOVE S AND BY LATE TUE NIGHT INTO WED MORNING...A SUITABLE PRESSURE GRADIENT FOR GUSTY OFFSHORE WINDS WILL EXIST ACROSS SRN CA. EXTREMELY LOW RH VALUES IN THE SINGLE DIGITS WILL COMBINE WITH VERY DRY FUELS AND GUSTY WINDS TO CREATE DANGEROUS FIRE WEATHER CONDITIONS ALONG AND W OF THE COASTAL RANGE. THESE CONDITIONS MAY PERSIST INTO THURSDAY MORNING. WHILE UPPER LEVEL WIND SUPPORT FOR THIS EVENT SUGGESTS A SOMEWHAT WEAKER EVENT...THE VERY LOW RH AND SUFFICIENT PRESSURE GRADIENT IS EXPECTED TO CREATE CRITICAL FIRE CONDITIONS FOR SRN CA. ALSO...GIVEN THE EXTENDED NATURE OF THIS FORECAST...PLEASE REFER TO LATER UPDATES AS A MINOR CHANGE IN THE TROUGH PATTERN COULD RESULT IN A WEAKER...OR STRONGER...SANTA ANA WIND EVENT. ..JEWELL.. 10/17/2008 ...PLEASE SEE WWW.SPC.NOAA.GOV/FIRE FOR GRAPHIC PRODUCT... $$ CLICK TO GET FNUS38 KWNS PFWF38 FIRE WEATHER OUTLOOK DAY 3-8 AREAL OUTLINE PRODUCT