Red Flag Warning 21, NWS Tucson, AZ

Issued

May 22, 2008, 3:00 AM MST (10:00 UTC)

In effect from

May 22, 2008, 10:00 AM MST

Expired

May 22, 2008, 12:46 PM MST

In force

3 hr

Issued by

NWS Tucson, AZ

000 
WWUS85 KTWC 221000
RFWTWC

RED FLAG WARNING
NATIONAL WEATHER SERVICE TUCSON AZ
300 AM MST THU MAY 22 2008

...RED FLAG WARNING IN EFFECT FROM 10 AM MST THIS MORNING UNTIL 9
PM MST THIS EVENING FOR COCHISE COUNTY DUE TO VERY STRONG AND
GUSTY SOUTHWEST WINDS...LOW RELATIVE HUMIDITIES AND VERY HIGH TO
EXTREME FIRE DANGER RATING...

.AN UNSEASONABLY STRONG LOW PRESSURE SYSTEM OVER THE GREAT BASIN
AND NORTHERN ARIZONA WILL RESULT IN YET ANOTHER VERY WINDY DAY
ACROSS ALL OF SOUTHEAST ARIZONA TODAY. ALTHOUGH THIS SYSTEM WILL
CONTINUE TO INCREASE MOISTURE ACROSS THE AREA TODAY...RELATIVE
HUMIDITIES ARE EXPECTED TO BE NEAR OR JUST BELOW 15 PERCENT IN
COCHISE COUNTY. THUS THE FIRE WEATHER WATCH HAS BEEN UPGRADED TO
A RED FLAG WARNING.


AZZ148-230400-
/O.UPG.KTWC.FW.A.0017.080522T1700Z-080523T0400Z/
/O.NEW.KTWC.FW.W.0021.080522T1700Z-080523T0400Z/
ARIZONA FIRE WEATHER ZONE 148
GRAHAM COUNTY SOUTH OF GILA RIVER-TUCSON/MARANA/GREEN
VALLEY-SANTA CRUZ-COCHISE COUNTY-CORONADO NF/
SAFFORD BLM/TDC-
300 AM MST THU MAY 22 2008

...RED FLAG WARNING IN EFFECT FROM 10 AM THIS MORNING TO 9 PM MST
THIS EVENING FOR COCHISE COUNTY...

THE NATIONAL WEATHER SERVICE IN TUCSON HAS ISSUED A RED FLAG
WARNING...WHICH IS IN EFFECT FROM 10 AM THIS MORNING TO 9 PM MST
THIS EVENING. THE FIRE WEATHER WATCH IS NO LONGER IN EFFECT. 

AN UNSEASONABLY STRONG LOW PRESSURE SYSTEM OVER THE GREAT BASIN
AND NORTHERN ARIZONA WILL RESULT IN YET ANOTHER VERY WINDY DAY
ACROSS ALL OF SOUTHEAST ARIZONA TODAY. INITIALLY...SUSTAINED
20-FOOT WINDS WILL BE OUT OF THE SOUTHWEST BETWEEN 10 TO 20 MPH
THIS MORNING...THEN INCREASE TO 25 TO 35 MPH WITH GUSTS TO 50 MPH
BY LATE MORNING AND PERSIST INTO THE EVENING HOURS.

ALTHOUGH WINDS WILL EASILY MEET RED FLAG CRITERIA TODAY...THE
LIMITING ELEMENT WILL BE THE HUMIDITY VALUES. THIS DISTURBANCE WILL
CONTINUE TO SPREAD A CHANCE OF SHOWERS AND A SLIGHT CHANCE OF A
THUNDERSTORM FROM NORTH TO SOUTH TODAY. ALTHOUGH THIS SYSTEM WILL
BRING AN INCREASE IN MOISTURE...RELATIVE HUMIDITIES ARE EXPECTED
TO BE NEAR OR JUST BELOW 15 PERCENT IN COCHISE COUNTY.

THEREFORE...THESE STRONG WINDS...LOW RELATIVE HUMIDITY VALUES AND
THE VERY HIGH TO EXTREME FIRE DANGER RATING HAVE NECESSITATED THE
ISSUANCE OF A RED FLAG WARNING FROM 10 AM MST THIS MORNING UNTIL 9
PM MST THIS EVENING FOR COCHISE COUNTY. THIS RED FLAG WARNING
REPLACES THE FIRE WEATHER WATCH PREVIOUSLY IN EFFECT.

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 THE RED FLAG WARNING TODAY FOR PORTIONS OF SOUTHEAST
ARIZONA.

$$

000 
WWUS85 KTWC 221946
RFWTWC

RED FLAG WARNING
NATIONAL WEATHER SERVICE TUCSON AZ
1246 PM MST THU MAY 22 2008

AZZ148-222100-
/O.CAN.KTWC.FW.W.0021.000000T0000Z-080523T0400Z/
ARIZONA FIRE WEATHER ZONE 148
GRAHAM COUNTY SOUTH OF GILA RIVER-TUCSON/MARANA/GREEN
VALLEY-SANTA CRUZ-COCHISE COUNTY-CORONADO NF/
SAFFORD BLM/TDC-
1246 PM MST THU MAY 22 2008

...RED FLAG WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN TUCSON HAS CANCELLED THE RED FLAG
WARNING FOR COCHISE COUNTY.

ALTHOUGH VERY STRONG AND GUSTY WINDS WILL CONTINUE ACROSS COCHISE
COUNTY AND THE REST OF SOUTHEASTERN ARIZONA THIS AFTERNOON...
RELATIVE HUMIDITY VALUES WERE GENERALLY IN THE 20S AND 30S...WITH
HIGHER VALUES NOTED ACROSS THE HIGHER TERRAIN. WITH CLOUDS
EXPECTED TO INCREASE ACROSS THE AREA TODAY AND LITTLE ADDITIONAL
DAYTIME HEATING THIS AFTERNOON...HUMIDITY VALUES SHOULD REMAIN
WELL ABOVE THE 15 PERCENT MARK. THEREFORE...THE RED FLAG WARNING
HAS BEEN CANCELLED FOR COCHISE COUNTY.

$$

Red Flag Warnings in Arizona, 2008Every red flag warning in 2008

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