Alert archive / Arizona / Red Flag Warnings in 2011

Red Flag Warning 13, NWS Tucson, AZ

April 25, 2011

NWS Tucson, AZ issued this red flag warning at Apr 25, 2011, 2:05 PM MST. It took effect at Apr 26, 2011, 11:00 AM MST. It was in force for 8 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: Apr 25, 2011, 2:05 PM MST (21:05 UTC)
In effect from: Apr 26, 2011, 11:00 AM MST
Expired: Apr 26, 2011, 7:00 PM MST
In force: 8 hr
Issued by: NWS Tucson, AZ

The text

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

260 
WWUS85 KTWC 252105
RFWTWC

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE TUCSON AZ
205 PM MST MON APR 25 2011

...RED FLAG WARNING IN EFFECT FROM 11 AM MST TO 7 PM MST TUESDAY FOR
ALL OF COCHISE...GRAHAM...GREENLEE COUNTIES AND EASTERN PORTIONS
OF SANTA CRUZ AND PIMA COUNTIES DUE TO STRONG AND GUSTY WEST WINDS...
LOW RELATIVE HUMIDITIES AND A VERY HIGH FIRE DANGER RATING...

AZZ146-148-261400-
/O.UPG.KTWC.FW.A.0007.110426T1800Z-110427T0200Z/
/O.NEW.KTWC.FW.W.0013.110426T1800Z-110427T0200Z/
ARIZONA FIRE WEATHER ZONE 146
NORTHERN GREENLEE COUNTY-GRAHAM COUNTY NORTH OF GILA RIVER-
APACHE NF/SAN CARLOS BIA/SDC-ARIZONA FIRE WEATHER ZONE 148
GRAHAM COUNTY SOUTH OF GILA RIVER-TUCSON/MARANA/GREEN
VALLEY-SANTA CRUZ-COCHISE COUNTY-CORONADO NF/
SAFFORD BLM/TDC-
205 PM MST MON APR 25 2011

...RED FLAG WARNING IN EFFECT FROM 11 AM TO 7 PM MST TUESDAY...

THE NATIONAL WEATHER SERVICE IN TUCSON HAS ISSUED A RED FLAG
WARNING...WHICH IS IN EFFECT FROM 11 AM TO 7 PM MST TUESDAY. THE
FIRE WEATHER WATCH IS NO LONGER IN EFFECT. 

* AFFECTED AREA...THE RED FLAG WARNING IS IN EFFECT FOR ALL OF
  COCHISE...GRAHAM...GREENLEE COUNTIES AND EASTERN PORTIONS OF
  SANTA CRUZ AND PIMA COUNTIES.

* TIMING...CRITICAL FIRE WEATHER CONDITIONS ARE EXPECTED FROM LATE
  TUESDAY MORNING THROUGH TUESDAY EVENING.

* WINDS...SUSTAINED 20-FOOT WEST AND NORTHWEST WINDS OF 15 TO 30 MPH
  WITH GUSTS TO 45 MPH.

* RELATIVE HUMIDITY...RELATIVE HUMIDITIES WILL RANGE FROM 7 TO 15
  PERCENT.

* IMPACTS...THE STRONG WINDS...LOW RELATIVE HUMIDITIES AND A VERY
  HIGH FIRE DANGER RATING WILL COMBINE TO CREATE CRITICAL FIRE
  WEATHER CONDITIONS.

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 THE POTENTIAL FOR RAPID AND ERRATIC FIRE GROWTH.

PLEASE ADVISE THE APPROPRIATE OFFICIALS OR FIRE CREWS IN THE
FIELD OF THE RED FLAG WARNING FOR PORTIONS OF SOUTHEAST ARIZONA.

&&

$$


HTTP://WEATHER.GOV/TUCSON

3 follow-up statements

439 
WWUS85 KTWC 261213
RFWTWC

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE TUCSON AZ
513 AM MST TUE APR 26 2011

...RED FLAG WARNING IN EFFECT FROM 11 AM MST TO 7 PM MST TUESDAY
FOR ALL OF COCHISE...GRAHAM...GREENLEE COUNTIES AND EASTERN
PORTIONS OF SANTA CRUZ AND PIMA COUNTIES DUE TO STRONG AND GUSTY
WEST WINDS...LOW RELATIVE HUMIDITIES AND A VERY HIGH FIRE DANGER
RATING...

AZZ146-148-262200-
/O.CON.KTWC.FW.W.0013.110426T1800Z-110427T0200Z/
ARIZONA FIRE WEATHER ZONE 146
NORTHERN GREENLEE COUNTY-GRAHAM COUNTY NORTH OF GILA RIVER-
APACHE NF/SAN CARLOS BIA/SDC-ARIZONA FIRE WEATHER ZONE 148
GRAHAM COUNTY SOUTH OF GILA RIVER-TUCSON/MARANA/GREEN
VALLEY-SANTA CRUZ-COCHISE COUNTY-CORONADO NF/
SAFFORD BLM/TDC-
513 AM MST TUE APR 26 2011

...RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM THIS MORNING TO
7 PM MST THIS EVENING...

A RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM THIS MORNING TO
7 PM MST THIS EVENING. 

* AFFECTED AREA...THE RED FLAG WARNING IS IN EFFECT FOR ALL OF 
  COCHISE...GRAHAM...GREENLEE COUNTIES AND EASTERN PORTIONS OF 
  SANTA CRUZ AND PIMA COUNTIES. 

* TIMING...CRITICAL FIRE WEATHER CONDITIONS ARE EXPECTED TO
  DEVELOP AFTER 11 AM THIS MORNING AND CONTINUE THOUGH THE
  AFTERNOON. WIND SPEEDS ARE EXPECTED TO DIMINISH TO BELOW
  CRITICAL FIRE WEATHER THRESHOLDS AFTER 7 PM THIS EVENING.
  RELATIVE HUMIDITY VALUES ARE EXPECTED TO RISE ABOVE 15 PERCENT
  LATER...BY 11 PM TONIGHT.

* WINDS...SUSTAINED 20-FOOT WEST AND NORTHWEST WINDS OF 15 TO 30
  MPH WITH GUSTS TO 45 MPH. LOCATIONS IN HIGHER ELEVATIONS MAY SEE
  SUSTAINED 20-FOOT WINDS REACHING 30 TO 40 MPH WITH GUSTS TO
  AROUND 50 MPH.

* RELATIVE HUMIDITY...RELATIVE HUMIDITIES WILL RANGE FROM 7 TO 
  15 PERCENT. 

* IMPACTS...THE STRONG WINDS...LOW RELATIVE HUMIDITIES AND A 
  VERY HIGH FIRE DANGER RATING WILL COMBINE TO CREATE CRITICAL 
  FIRE WEATHER CONDITIONS. 

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 THE POTENTIAL FOR RAPID AND ERRATIC FIRE GROWTH.

PLEASE ADVISE THE APPROPRIATE OFFICIALS OR FIRE CREWS IN THE
FIELD OF THE RED FLAG WARNING FOR PORTIONS OF SOUTHEAST ARIZONA.

&&

$$

113 
WWUS85 KTWC 262117
RFWTWC

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE TUCSON AZ
217 PM MST TUE APR 26 2011

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 PM MST TUESDAY FOR
ALL OF COCHISE...GRAHAM...GREENLEE COUNTIES AND EASTERN PORTIONS
OF SANTA CRUZ AND PIMA COUNTIES DUE TO STRONG AND GUSTY WEST
WINDS...LOW RELATIVE HUMIDITY AND A VERY HIGH FIRE DANGER
RATING...

AZZ146-148-270200-
/O.CON.KTWC.FW.W.0013.000000T0000Z-110427T0200Z/
ARIZONA FIRE WEATHER ZONE 146
NORTHERN GREENLEE COUNTY-GRAHAM COUNTY NORTH OF GILA RIVER-
APACHE NF/SAN CARLOS BIA/SDC-ARIZONA FIRE WEATHER ZONE 148
GRAHAM COUNTY SOUTH OF GILA RIVER-TUCSON/MARANA/GREEN
VALLEY-SANTA CRUZ-COCHISE COUNTY-CORONADO NF/
SAFFORD BLM/TDC-
217 PM MST TUE APR 26 2011

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 PM MST THIS EVENING...

A RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 PM MST THIS EVENING.

* AFFECTED AREA...THE RED FLAG WARNING IS IN EFFECT FOR ALL OF 
  COCHISE...GRAHAM...GREENLEE COUNTIES AND EASTERN PORTIONS OF 
  SANTA CRUZ AND PIMA COUNTIES. 

* TIMING...CRITICAL FIRE WEATHER CONDITIONS ARE EXPECTED TO
  CONTINUE THROUGH 7 PM MST. WIND SPEEDS ARE EXPECTED TO DIMINISH
  TO BELOW CRITICAL FIRE WEATHER THRESHOLDS AFTER SUNSET.
  RELATIVE HUMIDITY VALUES ARE EXPECTED TO RISE ABOVE 15 PERCENT
  BY 11 PM TONIGHT.

* WINDS...SUSTAINED 20-FOOT WEST AND NORTHWEST WINDS OF 20 TO 30
  MPH WITH GUSTS NEAR 50 MPH. 

* RELATIVE HUMIDITY...RELATIVE HUMIDITY WILL RANGE FROM 7 TO 15
  PERCENT.

* IMPACTS...THE STRONG WINDS...LOW RELATIVE HUMIDITY AND A 
  VERY HIGH FIRE DANGER RATING WILL COMBINE TO CREATE CRITICAL 
  FIRE WEATHER CONDITIONS. 

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 THE POTENTIAL FOR RAPID AND ERRATIC FIRE GROWTH.

PLEASE ADVISE THE APPROPRIATE OFFICIALS OR FIRE CREWS IN THE
FIELD OF THE RED FLAG WARNING FOR PORTIONS OF SOUTHEAST ARIZONA.

&&

$$

446 
WWUS85 KTWC 270145
RFWTWC

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE TUCSON AZ
645 PM MST TUE APR 26 2011

...RED FLAG WARNING WILL EXPIRE AT 7 PM MST THIS EVENING...

AZZ146-148-270245-
/O.EXP.KTWC.FW.W.0013.000000T0000Z-110427T0200Z/
ARIZONA FIRE WEATHER ZONE 146
NORTHERN GREENLEE COUNTY-GRAHAM COUNTY NORTH OF GILA RIVER-
APACHE NF/SAN CARLOS BIA/SDC-ARIZONA FIRE WEATHER ZONE 148
GRAHAM COUNTY SOUTH OF GILA RIVER-TUCSON/MARANA/GREEN
VALLEY-SANTA CRUZ-COCHISE COUNTY-CORONADO NF/
SAFFORD BLM/TDC-
645 PM MST TUE APR 26 2011

...RED FLAG WARNING WILL EXPIRE AT 7 PM MST THIS EVENING...

THE RED FLAG WARNING WILL EXPIRE AT 7 PM MST THIS EVENING. 

WINDS WILL SLOWLY DIMINISH THROUGH THE EVENING HOURS TONIGHT.
ALTHOUGH A FEW LOCATIONS WILL CONTINUE TO EXPERIENCE CRITICAL
FIRE WEATHER THRESHOLDS FOR THE NEXT HOUR OR SO...WINDS WILL
CONTINUE TO DECREASE AND RELATIVE HUMIDITY VALUES WILL SLOWLY
INCREASE OVERNIGHT.

$$


HTTP://WEATHER.GOV/TUCSON

The office that day

Everything else NWS Tucson, AZ issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 25, 2:16 AM MST	Fire Weather Watch	TWC		12 hr
Apr 25, 2:05 PM MST	Wind Advisory	TWC	Cochise, Graham, Greenlee, Pima, Pinal, Santa Cruz	29 hr

Nearby

Red Flag Warnings in Arizona, 2011 Every red flag warning in 2011

Sources

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