...RED FLAG WARNING REMAINS IN EFFECT FROM 11 PM THIS EVENING TO 3 PM PDT FRIDAY FOR GUSTY NORTH WINDS AND LOWERING HUMIDITY VALUES... * AFFECTED AREA: FIRE ZONE 507 NORTH BAY MOUNTAINS...FIRE ZONE 511 EAST BAY HILLS AND DIABLO RANGE. THIS INCLUDES ALL HILLS IN THE NORTH AND EAST BAY ABOVE 1000 FEET INCLUDING MOUNT TAMALPAIS...MOUNT DIABLO AND MOUNT SAINT HELENA. * TIMING: STRONG WINDS WILL DEVELOP AROUND 11 PM TONIGHT AND LAST INTO THURSDAY MORNING. WINDS WILL INCREASE AGAIN THURSDAY NIGHT INTO EARLY FRIDAY. * WIND: NORTHERLY WINDS 15 TO 25 MPH WITH FREQUENT GUSTS 35 TO 45 MPH OVER THE HIGHEST PEAKS OF NAPA COUNTY AS WELL AS MOUNT SAINT HELENA AND MOUNT DIABLO. STRONGEST WINDS EXPECTED FROM LATE TONIGHT THROUGH THURSDAY MORNING AND THEN AGAIN LATE THURSDAY EVENING THROUGH FRIDAY MORNING. * HUMIDITY: INITIALLY MOIST VALUES AROUND 50-60% TONIGHT WILL LOWER TO 30-40% BY THURSDAY MORNING...THEN CONTINUE TO DRY OUT TO LESS THAN 30% FROM THURSDAY AFTERNOON THROUGH FRIDAY WITH NO OVERNIGHT HUMIDITY RECOVERY EXPECTED THURSDAY NIGHT. * IMPACTS: ANY NEW IGNITIONS WILL HAVE THE POTENTIAL TO PRODUCE WIND DRIVEN FIRE BEHAVIOR TONIGHT INTO EARLY THURSDAY. WARMING AND DRYING ALONG WITH PERSISTENT OFFSHORE FLOW WILL MAKE SUPPRESSION DIFFICULT. SIMILAR WEATHER EVENTS IN THE PAST HAVE BROUGHT DOWN POWER LINES AND OTHER IGNITION SOURCES THAT HAVE STARTED NEW FIRES. EXTRA CARE WITH IGNITION SOURCES IS URGED. 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 CAN CONTRIBUTE TO EXTREME FIRE BEHAVIOR. && $$
URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA 250 PM PDT WED SEP 25 2013 CAZ512-517-518-261300- /O.CON.KMTR.FW.W.0004.130926T2000Z-130927T2200Z/ SANTA CRUZ MOUNTAINS- SANTA LUCIA MOUNTAINS AND LOS PADRES NATIONAL FOREST- MOUNTAINS OF SAN BENITO AND INTERIOR MONTEREY COUNTY INCLUDING PINNACLES NATIONAL PARK- 250 PM PDT WED SEP 25 2013 ...RED FLAG WARNING REMAINS IN EFFECT FROM 1 PM THURSDAY TO 3 PM PDT FRIDAY FOR GUSTY NORTH WINDS AND LOWERING HUMIDITY VALUES... * AFFECTED AREA: FIRE ZONE 512 SANTA CRUZ MOUNTAINS...FIRE ZONE 517 SANTA LUCIA MOUNTAINS AND LOS PADRES NATIONAL FOREST... FIRE ZONE 518 MOUNTAINS OF SAN BENITO AND INTERIOR MONTEREY COUNTY INCLUDING PINNACLES NATIONAL PARK. THIS INCLUDES ALL HILLS ABOVE 1000 FEET IN MONTEREY AND SAN BENITO COUNTY AS WELL AS THE SANTA CRUZ MOUNTAINS. * TIMING: WARM AND DRY CONDITIONS WILL DEVELOP BY EARLY THURSDAY AFTERNOON. IN ADDITION...STRONG AND GUSTY OFFSHORE WINDS WILL CONTINUE IN THE HILLS. NO HUMIDITY RECOVERY IS EXPECTED THURSDAY NIGHT. CONTINUED WARMING AND DRYING ALONG WITH PERSISTENT OFFSHORE WIND FLOW IS FORECAST THROUGH AT LEAST FRIDAY AFTERNOON. * WIND: NORTHERLY WINDS 10 TO 20 MPH WITH FREQUENT GUSTS 25 TO 35 MPH. STRONGEST WINDS OVER THE HILLS IN THE LOS PADRES NATIONAL FOREST AS WELL AS THE HIGHER RIDGES ABOVE 2500 FEET IN SANTA CRUZ AND SAN BENITO COUNTIES. STRONGEST WINDS ARE FORECAST TO OCCUR ON THURSDAY AND THURSDAY NIGHT WITH WINDS GRADUALLY EASING BY FRIDAY AFTERNOON. * HUMIDITY: 20-30% THURSDAY AFTERNOON WITH LITTLE OR NO RECOVERY THURSDAY NIGHT. CONTINUED DRYING ON FRIDAY WITH WIDESPREAD HUMIDITY VALUES OF 10-20%. * IMPACTS: MANY OF THE HILLS OF MONTEREY AND SAN BENITO COUNTY HAVE RECEIVED LITTLE OR NO RAINFALL THIS SEASON. RAPID FIRE GROWTH WILL BE LIKELY UNDER THIS WEATHER PATTERN. HUNTERS... CAMPERS AND OTHERS VISITING THE OUTDOORS AS WELL AS PRESCRIBED BURNERS SHOULD EXERCISE EXTREME CAUTION THURSDAY AND FRIDAY. 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 CAN CONTRIBUTE TO EXTREME FIRE BEHAVIOR. && $$ HTTP://WEATHER.GOV/SANFRANCISCO
URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE SACRAMENTO CA 1143 PM PDT WED SEP 25 2013 ...GUSTY NORTH WINDS THURSDAY MORNING INTO FRIDAY LEADING TO DRIER CONDITIONS... .A LOW PRESSURE SYSTEM DROPPING SOUTH OF THE REGION EARLY THURSDAY WILL BRING A PERIOD OF GUSTY NORTH WINDS AND LOWERING HUMIDITY TO NORTHERN CALIFORNIA. DESPITE RECENT LIGHT RAIN...FUELS IN THE WARNING AREA REMAIN VERY DRY. THE STRONGEST WINDS ARE EXPECTED THURSDAY INTO EARLY FRIDAY ABOVE 2000 FEET ELEVATION ESPECIALLY DURING THE EVENING AND MORNING HOURS. LIGHTER WINDS ARE EXPECTED BY FRIDAY AFTERNOON BUT RELATIVE HUMIDITY WILL REMAIN LOW INTO THE EVENING HOURS. CAZ264-270000- /O.CON.KSTO.FW.W.0011.130926T1200Z-130927T2200Z/ LAKE COUNTY PORTION OF LAKE-NAPA-SONOMA UNIT- 1143 PM PDT WED SEP 25 2013 ...RED FLAG WARNING REMAINS IN EFFECT FROM 5 AM THURSDAY TO 3 PM PDT FRIDAY FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE 264 ABOVE 2000 FEET... * AFFECTED AREA...FIRE WEATHER ZONE 264 LAKE COUNTY PORTION OF LAKE-NAPA-SONOMA UNIT ABOVE 2000 FEET. * WINDS...NORTH 10 TO 20 MPH WITH GUSTS UP TO 35 MPH. * RELATIVE HUMIDITY...AS LOW AS 13 PERCENT. * IMPACTS...GUSTY WINDS AND LOW HUMIDITY COULD CREATE DANGEROUS FIRE WEATHER CONDITIONS...ESPECIALLY ABOVE 2000 FEET ELEVATION WHERE THE WINDS WILL BE STRONGEST. * FOR A DETAILED VIEW OF THE HAZARD AREA...VISIT HTTP://WWW.WEATHER.GOV/SACRAMENTO/HAZARDS 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 CAN CONTRIBUTE TO EXTREME FIRE BEHAVIOR. && INTERACT WITH US VIA SOCIAL MEDIA WWW.FACEBOOK.COM/NWS.SACRAMENTO WWW.TWITTER.COM/NWSSACRAMENTO--
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