Alert archive / California / Red Flag Warnings in 2007

Red Flag Warning 3, NWS Hanford, CA

September 12, 2007

NWS Hanford, CA issued this red flag warning at Sep 12, 2007, 12:43 PM PDT. It was in force for 4 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
Sep 12, 2007, 12:43 PM PDT (19:43 UTC)
Expired
Sep 12, 2007, 5:00 PM PDT
In force
4 hr
Issued by
NWS Hanford, CA

The text

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

000 
WWUS86 KHNX 121943
RFWHNX

RED FLAG WARNING
NATIONAL WEATHER SERVICE SAN JOAQUIN VALLEY - HANFORD CA
1243 PM PDT WED SEP 12 2007

CAZ295-297-130000-
/O.NEW.KHNX.FW.W.0003.070912T1943Z-070913T0000Z/
KERN COUNTY MOUNTAINS-TULARE COUNTY MOUNTAINS-
1243 PM PDT WED SEP 12 2007

...RED FLAG WARNING IN EFFECT UNTIL 5 PM PDT THIS AFTERNOON
FOR THE TULARE AND KERN COUNTY MOUNTAINS FOR VERY LOW HUMIDITY...

THE NATIONAL WEATHER SERVICE IN HANFORD HAS ISSUED A RED FLAG
WARNING FOR THE TULARE AND KERN COUNTY MOUNTAINS FOR VERY LOW
RELATIVE HUMIDITY...WHICH IS IN EFFECT UNTIL 5 PM PDT THIS AFTERNOON.

RELATIVE HUMIDITIES ARE CURRENTLY IN THE SINGLE DIGITS AT MANY
LOCATIONS IN THE TULARE AND KERN COUNTY MOUNTAINS. ALTHOUGH
INCREASING ONSHORE FLOW AHEAD OF A LOW PRESSURE SYSTEM OFF THE
COAST WILL BRING A SLIGHT INCREASE IN HUMIDITY THIS AFTERNOON...
SINGLE DIGIT HUMIDITIES WILL LIKELY REMAIN OVER MUCH OF THE
SEQUOIA NATIONAL FOREST AND THE KERN COUNTY MOUNTAINS EAST OF
TEHACHAPI THROUGH THE REMAINDER OF THE AFTERNOON.

IN ADDITION...SOUTHWEST TO WEST WINDS WILL INCREASE OVER THE
RIDGES AND THROUGH THE PASSES THIS AFTERNOON AND EVENING. LOCAL
WIND GUSTS OF 25 TO 35 MPH ARE POSSIBLE LATE THIS AFTERNOON AND
EVENING.

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. PLEASE ADVISE THE
APPROPRIATE OFFICIALS OR FIRE CREWS IN THE FIELD OF THIS RED
FLAG WARNING.

$$

BEAN

WEATHER.GOV/HANFORD
1 follow-up statement
000 
WWUS86 KHNX 130008
RFWHNX

RED FLAG WARNING
NATIONAL WEATHER SERVICE SAN JOAQUIN VALLEY - HANFORD CA
508 PM PDT WED SEP 12 2007


CAZ295-297-130115-
/O.EXP.KHNX.FW.W.0003.000000T0000Z-070913T0000Z/
KERN COUNTY MOUNTAINS-TULARE COUNTY MOUNTAINS-
508 PM PDT WED SEP 12 2007

...RED FLAG WARNING HAS EXPIRED FOR THE TULARE AND KERN COUNTY
MOUNTAINS...

THE RED FLAG WARNING FOR THE TULARE AND KERN COUNTY MOUNTAINS IS
NO LONGER IN EFFECT. HUMIDITIES IN MOST AREAS HAVE RISEN ABOVE 10
PERCENT...AND WIND GUSTS WERE LESS THAN 25 MPH.



$$
BINGHAM
 
WEATHER.GOV/HANFORD

What forecasters said that day

The local office's own words before this red flag warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Hanford, CA wrote its last area forecast discussion before this red flag warning went out at Sep 12, 8:50 AM PDT, 3 hours 53 minutes earlier.

Area forecast discussion, Sep 12, 8:50 AM PDT, 3 hours 53 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN JOAQUIN VALLEY - HANFORD CA
850 AM PDT WED SEP 12 2007

.UPDATE...NO CHANGES TO CURRENT ZONE FORECAST PKG.

&&

.DISCUSSION...THE MARINE LAYER IS SIGNIFICANTLY DEEPER ALONG THE
COAST THIS MORNING WHILE THE INLAND PENETRATION OF STRATUS IS
MORE WIDESPREAD...EXTENDING JUST BELOW PACHECO PASS IN WESTERN
MERCED COUNTY ON CURRENT SATELLITE IMAGERY. THE 12Z OAK SOUNDING
SHOWED A MARINE LAYER DEPTH OF ABOUT 2500 FT. AS ONE WOULD SURMISE...
THE ONSHORE FLOW STRENGTHENED LAST NIGHT AND MARINE AIR IS FLOWING
RATHER BRISKLY THROUGH THE SAC DELTA. (WINDS AT TRAVIS AFB CURRENTLY
SUSTAINED AT 26 MPH). THIS MARKS THE BEGINNING OF A SIGNIFICANT
COOLING TREND ACROSS THE CENTRAL CA INTERIOR WHICH WILL CONTINUE
INTO THE WEEKEND.

THE INTRUSION OF MARINE AIR INTO THE SJ VLY WILL BE QUITE SHALLOW
TODAY BUT WILL DEEPEN TONIGHT AND THURSDAY AS AN UPPER LEVEL LOW
OVER THE EASTERN PACIFIC APPROACHES THE NRN CA COAST. THE MODELS
FORECAST THIS LOW TO STALL OVER THE PAC NW THIS WEEKEND WHILE
POSITIONING THE CORE OF THE 300 MB JET RIGHT OVER CENTRAL CA.
THIS SETUP SUPPORTS A MODERATELY STRONG ONSHORE FLOW ACROSS THE
CWA WITH COOLER THAN NORMAL TEMPS. THE GFS FORECASTS ANOTHER
UPPER LEVEL TROUGH TO DROP INTO THE PAC NW EARLY NEXT WEEK THEN
DIG SOUTHWARD ALONG THE CA COAST DURING MIDWEEK WITH FURTHER
COOLING. IN SUMMARY...TODAY WILL BE THE WARMEST DAY OF THE NEXT
7 DAYS.

&&

.AVIATION...VFR CONDITIONS WILL PREVAIL ACROSS THE CENTRAL CALIFORNIA
INTERIOR THROUGH 18Z THURSDAY.

FOR SPECIFIC DETAILS...PLEASE REFER TO THE TAFS FOR KMCE...KFAT AND
KBFL...AND TWEB ROUTES 421 AND 423.

&&

.AIR QUALITY ISSUES...
NONE

&&

.HNX WATCHES/WARNINGS/ADVISORIES...
NONE.
&&

PUBLIC...DURFEE
AVIATION/FIRE WEATHER...BEAN

WEATHER.GOV/HANFORD

Nearby

Red Flag Warnings in California, 2007Every red flag warning in 2007

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.