Alert archive / California / Red Flag Warnings in 2012

Red Flag Warning 2, NWS San Francisco Bay Area, CA

June 15, 2012

NWS San Francisco Bay Area, CA issued this red flag warning at Jun 15, 2012, 7:33 AM PDT. It took effect at Jun 15, 2012, 8:00 PM PDT. It was in force for 13 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: Jun 15, 2012, 7:33 AM PDT (14:33 UTC)
In effect from: Jun 15, 2012, 8:00 PM PDT
Expired: Jun 16, 2012, 9:00 AM PDT
In force: 13 hr
Issued by: NWS San Francisco Bay Area, CA

The text

As transmitted, in the capitals the NWS used until 2016.

914 
WWUS86 KMTR 151433
RFWMTR

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
733 AM PDT FRI JUN 15 2012

CAZ507-160245-
/O.UPG.KMTR.FW.A.0001.120616T0300Z-120616T1600Z/
/O.NEW.KMTR.FW.W.0002.120616T0300Z-120616T1600Z/
NORTH BAY MOUNTAINS-
733 AM PDT FRI JUN 15 2012

...RED FLAG WARNING IN EFFECT FROM 8 PM THIS EVENING TO 9 AM PDT
SATURDAY FOR NORTH BAY MOUNTAINS FOR WIND AND LOW HUMIDITY...

THE NATIONAL WEATHER SERVICE THE SAN FRANCISCO BAY AREA HAS
ISSUED A RED FLAG WARNING...WHICH IS IN EFFECT FROM 8 PM THIS
EVENING TO 9 AM PDT SATURDAY. THE FIRE WEATHER WATCH IS NO LONGER
IN EFFECT. 

* AFFECTED AREA: FIRE ZONE 507 NORTH BAY MOUNTAINS.

* TIMING:WINDS WILL INCREASE FRIDAY EVENING AND PEAK DURING THE
  OVERNIGHT HOURS. WINDS WILL GRADUALLY DECREASE SATURDAY MORNING.

* WIND:NORTH TO NORTHEAST WINDS FROM 15 TO 25 MPH WITH GUSTS UP 
  TO 40 MPH OVER THE RIDGES AND PEAKS.

* HUMIDITY: POOR HUMIDITY RECOVERIES FRIDAY NIGHT WITH RELATIVE 
  HUMIDITY VALUES REMAINING BELOW 30 PERCENT.

* IMPACTS: THE COMBINATION OF LOW RELATIVE HUMIDITIES AND GUSTY
  OFFSHORE WINDS HAS THE POTENTIAL TO CREATE CRITICAL FIRE WEATHER
  CONDITIONS...ESPECIALLY AT ELEVATIONS BETWEEN 1000 AND 2000 FEET
  WHERE FUELS ARE DRY.


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

2 follow-up statements

653 
WWUS86 KMTR 160243
RFWMTR

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
743 PM PDT FRI JUN 15 2012

CAZ507-161600-
/O.CON.KMTR.FW.W.0002.120616T0300Z-120616T1600Z/
NORTH BAY MOUNTAINS-
743 PM PDT FRI JUN 15 2012

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 AM PDT SATURDAY FOR
GUSTY WINDS AND LOW HUMIDITY FOR THE NORTH BAY MOUNTAINS...

* AFFECTED AREA: FIRE ZONE 507 NORTH BAY MOUNTAINS.

* TIMING:WINDS WILL INCREASE FRIDAY EVENING AND PEAK DURING THE 
  OVERNIGHT HOURS. WINDS WILL GRADUALLY DECREASE SATURDAY 
  MORNING.

* WIND:NORTH TO NORTHEAST WINDS FROM 15 TO 25 MPH WITH GUSTS UP 
  TO 40 MPH OVER THE RIDGES AND PEAKS.

* HUMIDITY: POOR HUMIDITY RECOVERIES FRIDAY NIGHT WITH RELATIVE 
  HUMIDITY VALUES REMAINING BELOW 30 PERCENT.

* IMPACTS: THE COMBINATION OF LOW RELATIVE HUMIDITIES AND GUSTY 
  OFFSHORE WINDS HAS THE POTENTIAL TO CREATE CRITICAL FIRE 
  WEATHER CONDITIONS...ESPECIALLY AT ELEVATIONS BETWEEN 1000 
  AND 2000 FEET WHERE FUELS ARE DRY. 

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

578 
WWUS86 KMTR 161553
RFWMTR

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
853 AM PDT SAT JUN 16 2012

CAZ507-161700-
/O.EXP.KMTR.FW.W.0002.000000T0000Z-120616T1600Z/
NORTH BAY MOUNTAINS-
853 AM PDT SAT JUN 16 2012

...RED FLAG WARNING WILL EXPIRE AT 9 AM PDT THIS MORNING FOR
GUSTY WINDS AND LOW HUMIDITY FOR THE NORTH BAY MOUNTAINS...

THE RED FLAG WARNING WILL EXPIRE AT 9 AM PDT THIS MORNING. 

GUSTY NORTH WINDS HAVE DECREASED IN MOST AREAS AND SHOULD THEN
TURN ONSHORE LATER TODAY. LOW HUMIDITIES WILL CONTINUE TODAY BUT
BETTER RECOVERY IS EXPECTED TONIGHT. WITH WINDS DECREASING...THE
RED FLAG WARNING WILL BE ALLOWED TO EXPIRE.

$$


HTTP://WEATHER.GOV/SANFRANCISCO

The office that day

Everything else NWS San Francisco Bay Area, CA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 15, 2:55 AM PDT	Small Craft Advisory for Rough Bar	MTR		6 hr
Jun 15, 2:55 AM PDT	Small Craft Advisory	MTR		7 days
Jun 15, 2:24 PM PDT	Beach Hazards Statement	MTR	Monterey, Santa Cruz	3 days

Nearby

Red Flag Warnings in California, 2012 Every 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.