Alert archive / California / Red Flag Warnings in 2012
Red Flag Warning 5, NWS San Francisco Bay Area, CA
NWS San Francisco Bay Area, CA issued this red flag warning at Oct 17, 2012, 10:35 AM PDT. It took effect at Oct 17, 2012, 6:00 PM PDT. It was in force for 14 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
- Oct 17, 2012, 10:35 AM PDT (17:35 UTC)
- In effect from
- Oct 17, 2012, 6:00 PM PDT
- Expired
- Oct 18, 2012, 8:00 AM PDT
- In force
- 14 hr
- Issued by
- NWS San Francisco Bay Area, CA
The text
As transmitted, in the capitals the NWS used until 2016.
888 WWUS86 KMTR 171735 RFWMTR URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA 1035 AM PDT WED OCT 17 2012 ...BREEZY OFFSHORE WINDS AND POOR HUMIDITY RECOVERIES OVER THE NORTH BAY MOUNTAINS AND EAST BAY HILLS WEDNESDAY NIGHT... .HIGH PRESSURE OVER THE GREAT BASIN AND LOW PRESSURE ALONG THE CENTRAL COAST WILL RESULT IN OFFSHORE FLOW. NORTHERLY WINDS WILL BE STRONGEST OVER THE NORTH BAY MOUNTAINS AND EAST BAY HILLS WEDNESDAY NIGHT AND THURSDAY MORNING. IN ADDITION...THE OFFSHORE FLOW WILL ALLOW FOR POOR HUMIDITY RECOVERIES ABOVE 1000 FEET FRIDAY NIGHT. CAZ507-511-180545- /O.NEW.KMTR.FW.W.0005.121018T0100Z-121018T1500Z/ NORTH BAY MOUNTAINS-EAST BAY HILLS AND DIABLO RANGE- 1035 AM PDT WED OCT 17 2012 ...RED FLAG WARNING IN EFFECT FROM 6 PM THIS EVENING TO 8 AM PDT THURSDAY FOR GUSTY WINDS AND LOW HUMIDITY FOR FOR THE NORTH BAY MOUNTAINS AND EAST BAY HILLS... THE NATIONAL WEATHER SERVICE THE SAN FRANCISCO BAY AREA HAS ISSUED A RED FLAG WARNING...WHICH IS IN EFFECT FROM 6 PM THIS EVENING TO 8 AM PDT THURSDAY. * AFFECTED AREA: FIRE ZONE 507 NORTH BAY MOUNTAINS...FIRE ZONE 511 EAST BAY HILLS AND DIABLO RANGE. * TIMING: BREEZY CONDITIONS AND LOW RELATIVE HUMIDITIES WILL BE POSSIBLE WEDNESDAY EVENING THROUGH EARLY THURSDAY MORNING. * WIND:NORTH TO NORTHEAST WINDS FROM 8 TO 15 MPH WITH GUSTS UP TO 20 MPH OVER THE RIDGES AND PEAKS. * HUMIDITY:POOR HUMIDITY RECOVERIES WEDNESDAY NIGHT WITH RELATIVE HUMIDITY VALUES REMAINING BELOW 30 PERCENT. * IMPACTS: THE COMBINATION OF POOR RELATIVE HUMIDITIES TONIGHT AND BREEZY OFFSHORE WINDS HAS THE POTENTIAL TO CREATE CRITICAL FIRE WEATHER CONDITIONS...ESPECIALLY AT ELEVATIONS ABOVE 1000 FEET. 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. && $$ HTTP://WEATHER.GOV/SANFRANCISCO
3 follow-up statements
692 WWUS86 KMTR 180339 RFWMTR URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA 839 PM PDT WED OCT 17 2012 .HIGH PRESSURE OVER THE GREAT BASIN AND LOW PRESSURE ALONG THE CENTRAL COAST WILL RESULT IN OFFSHORE FLOW. NORTHERLY WINDS WILL BE STRONGEST OVER THE NORTH BAY MOUNTAINS AND EAST BAY HILLS WEDNESDAY NIGHT AND THURSDAY MORNING. IN ADDITION...THE OFFSHORE FLOW WILL ALLOW FOR POOR HUMIDITY RECOVERIES ABOVE 1000 FEET FRIDAY NIGHT. CAZ507-511-181500- /O.CON.KMTR.FW.W.0005.000000T0000Z-121018T1500Z/ NORTH BAY MOUNTAINS-EAST BAY HILLS AND DIABLO RANGE- 839 PM PDT WED OCT 17 2012 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 AM PDT THURSDAY FOR GUSTY WINDS AND LOW HUMIDITY FOR FOR THE NORTH BAY MOUNTAINS AND EAST BAY HILLS... * AFFECTED AREA: FIRE ZONE 507 NORTH BAY MOUNTAINS...FIRE ZONE 511 EAST BAY HILLS AND DIABLO RANGE. * TIMING: BREEZY CONDITIONS AND LOW RELATIVE HUMIDITIES WILL BE POSSIBLE WEDNESDAY EVENING THROUGH EARLY THURSDAY MORNING. * WIND:NORTH TO NORTHEAST WINDS FROM 8 TO 15 MPH WITH GUSTS UP TO 20 MPH OVER THE RIDGES AND PEAKS. * HUMIDITY:POOR HUMIDITY RECOVERIES WEDNESDAY NIGHT WITH RELATIVE HUMIDITY VALUES REMAINING BELOW 30 PERCENT. * IMPACTS: THE COMBINATION OF POOR RELATIVE HUMIDITIES TONIGHT AND BREEZY OFFSHORE WINDS HAS THE POTENTIAL TO CREATE CRITICAL FIRE WEATHER CONDITIONS...ESPECIALLY AT ELEVATIONS ABOVE 1000 FEET. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$ HTTP://WEATHER.GOV/SANFRANCISCO
977 WWUS86 KMTR 180952 RFWMTR URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA 252 AM PDT THU OCT 18 2012 CAZ507-511-181500- /O.CON.KMTR.FW.W.0005.000000T0000Z-121018T1500Z/ NORTH BAY MOUNTAINS-EAST BAY HILLS AND DIABLO RANGE- 252 AM PDT THU OCT 18 2012 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 AM PDT THIS MORNING FOR GUSTY WINDS AND LOW HUMIDITY FOR FOR THE NORTH BAY MOUNTAINS AND EAST BAY HILLS... * AFFECTED AREA: FIRE ZONE 507 NORTH BAY MOUNTAINS...FIRE ZONE 511 EAST BAY HILLS AND DIABLO RANGE. * TIMING: BREEZY CONDITIONS AND LOW RELATIVE HUMIDITIES WILL CONTINUE THROUGH EARLY THIS MORNING. * WIND: NORTH TO NORTHEAST WINDS FROM 8 TO 15 MPH WITH GUSTS UP TO 20 MPH OVER THE RIDGES AND PEAKS. * HUMIDITY: POOR HUMIDITY RECOVERIES EARLY THIS MORNING WITH RELATIVE HUMIDITY VALUES REMAINING BELOW 30 PERCENT. * IMPACTS: THE COMBINATION OF POOR RELATIVE HUMIDITIES AND BREEZY OFFSHORE WINDS HAS THE POTENTIAL TO CREATE CRITICAL FIRE WEATHER CONDITIONS...ESPECIALLY AT ELEVATIONS ABOVE 1000 FEET. 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. && $$ HTTP://WEATHER.GOV/SANFRANCISCO
704 WWUS86 KMTR 181443 RFWMTR URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA 743 AM PDT THU OCT 18 2012 CAZ507-511-181545- /O.EXP.KMTR.FW.W.0005.000000T0000Z-121018T1500Z/ NORTH BAY MOUNTAINS-EAST BAY HILLS AND DIABLO RANGE- 743 AM PDT THU OCT 18 2012 ...RED FLAG WARNING WILL EXPIRE AT 8 AM PDT THIS MORNING FOR GUSTY WINDS AND LOW HUMIDITY FOR FOR THE NORTH BAY MOUNTAINS AND EAST BAY HILLS... THE RED FLAG WARNING WILL EXPIRE AT 8 AM PDT THIS MORNING. BREEZY NORTHERLY WINDS WILL GRADUALLY DECREASE THROUGH THE DAY AND EVENTUALLY TURN ONSHORE LATER TODAY. LOW HUMIDITIES WILL CONTINUE TODAY WITH MILD TEMPERATURES BUT BETTER HUMIDITY RECOVERY IS EXPECTED TONIGHT. WITH WINDS DECREASING...THE RED FLAG WARNING WILL BE ALLOWED TO EXPIRE. $$ HTTP://WEATHER.GOV/SANFRANCISCO
Nearby
Red Flag Warnings in California, 2012Every red flag warning in 2012
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.