Alert archive / Arizona / Red Flag Warnings in 2011

Red Flag Warning 6, NWS Tucson, AZ

March 20, 2011

NWS Tucson, AZ issued this red flag warning at Mar 20, 2011, 3:12 PM MST. It took effect at Mar 21, 2011, 10:00 AM MST. It was in force for 9 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
Mar 20, 2011, 3:12 PM MST (22:12 UTC)
In effect from
Mar 21, 2011, 10:00 AM MST
Expired
Mar 21, 2011, 7:00 PM MST
In force
9 hr
Issued by
NWS Tucson, AZ

The text

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

778 
WWUS85 KTWC 202212
RFWTWC

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE TUCSON AZ
312 PM MST SUN MAR 20 2011

...RED FLAG WARNING IN EFFECT FROM 10 AM TO 7 PM MST MONDAY FOR 
GREENLEE...GRAHAM...COCHISE...SOUTHEAST AND SOUTH CENTRAL PINAL... 
SANTA CRUZ...AND CENTRAL AND EASTERN PIMA COUNTIES DUE TO THE 
POTENTIAL FOR STRONG AND GUSTY WINDS...LOW RELATIVE HUMIDITIES... 
AND A HIGH TO VERY HIGH FIRE DANGER RATING...

AZZ146>148-210615-
/O.UPG.KTWC.FW.A.0004.110321T1700Z-110322T0200Z/
/O.NEW.KTWC.FW.W.0006.110321T1700Z-110322T0200Z/
ARIZONA FIRE WEATHER ZONE 146
NORTHERN GREENLEE COUNTY-GRAHAM COUNTY NORTH OF GILA RIVER-
APACHE NF/SAN CARLOS BIA/SDC-ARIZONA FIRE WEATHER ZONE 147
SOUTHEAST PINAL COUNTY-WESTERN PIMA COUNTY-
TOHONO OODHAM NATION-CORONADO NF/PAPAGO BIA/TDC-
ARIZONA FIRE WEATHER ZONE 148
GRAHAM COUNTY SOUTH OF GILA RIVER-TUCSON/MARANA/GREEN
VALLEY-SANTA CRUZ-COCHISE COUNTY-CORONADO NF/
SAFFORD BLM/TDC-
312 PM MST SUN MAR 20 2011

...RED FLAG WARNING IN EFFECT FROM 10 AM TO 7 PM MST MONDAY...

THE NATIONAL WEATHER SERVICE IN TUCSON HAS ISSUED A RED FLAG
WARNING...WHICH IS IN EFFECT FROM 10 AM TO 7 PM MST MONDAY. THE
FIRE WEATHER WATCH IS NO LONGER IN EFFECT. 

* AFFECTED AREA...THE RED FLAG WARNING IS IN EFFECT FOR
  GREENLEE...GRAHAM...COCHISE...SOUTHEAST AND SOUTH CENTRAL
  PINAL...SANTA CRUZ...AND CENTRAL AND EASTERN PIMA COUNTIES.

* TIMING...WINDS WILL BECOME VERY STRONG AND GUSTY MONDAY 
  MORNING AND CONTINUE THROUGH THE EARLY EVENING HOURS MONDAY. 
  DURING THIS PERIOD...RELATIVE HUMIDITY VALUES WILL BE BELOW 15 
  PERCENT. 

* WINDS...SUSTAINED 20-FOOT SOUTHWEST TO WEST WINDS OF 15 TO 30
  MPH WITH GUSTS BETWEEN 35 AND 50 MPH.

* RELATIVE HUMIDITY...THE MINIMUM RELATIVE HUMIDITY VALUES WILL 
  RANGE FROM 5 TO 15 PERCENT. 

* IMPACTS...THE STRONG WINDS AND LOW RELATIVE HUMIDITIES WILL 
  COMBINE TO CREATE CRITICAL FIRE WEATHER CONDITIONS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

PLEASE ADVISE THE APPROPRIATE OFFICIALS OR FIRE CREWS IN THE
FIELD OF THE FIRE WEATHER WATCH FOR MUCH OF SOUTHEAST ARIZONA.

&&

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.

&&

$$
4 follow-up statements
278 
WWUS85 KTWC 210357
RFWTWC

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE TUCSON AZ
857 PM MST SUN MAR 20 2011

...RED FLAG WARNING IN EFFECT FROM 10 AM TO 7 PM MST MONDAY FOR
GREENLEE...GRAHAM...COCHISE...SOUTHEAST AND SOUTH CENTRAL PINAL...
SANTA CRUZ...AND CENTRAL AND EASTERN PIMA COUNTIES DUE TO THE
POTENTIAL FOR STRONG AND GUSTY WINDS...LOW RELATIVE HUMIDITIES...
AND A HIGH TO VERY HIGH FIRE DANGER RATING...

AZZ146>148-211400-
/O.CON.KTWC.FW.W.0006.110321T1700Z-110322T0200Z/
ARIZONA FIRE WEATHER ZONE 146
NORTHERN GREENLEE COUNTY-GRAHAM COUNTY NORTH OF GILA RIVER-
APACHE NF/SAN CARLOS BIA/SDC-ARIZONA FIRE WEATHER ZONE 147
SOUTHEAST PINAL COUNTY-WESTERN PIMA COUNTY-
TOHONO OODHAM NATION-CORONADO NF/PAPAGO BIA/TDC-
ARIZONA FIRE WEATHER ZONE 148
GRAHAM COUNTY SOUTH OF GILA RIVER-TUCSON/MARANA/GREEN
VALLEY-SANTA CRUZ-COCHISE COUNTY-CORONADO NF/
SAFFORD BLM/TDC-
857 PM MST SUN MAR 20 2011

...RED FLAG WARNING REMAINS IN EFFECT FROM 10 AM TO 7 PM MST
MONDAY...

A RED FLAG WARNING REMAINS IN EFFECT FROM 10 AM TO 7 PM MST
MONDAY. 

* AFFECTED AREA...THE RED FLAG WARNING IS IN EFFECT FOR 
  GREENLEE...GRAHAM...COCHISE...SOUTHEAST AND SOUTH CENTRAL 
  PINAL...SANTA CRUZ...AND CENTRAL AND EASTERN PIMA COUNTIES. 

* TIMING...WINDS WILL BECOME VERY STRONG AND GUSTY MONDAY 
  MORNING AND CONTINUE THROUGH THE EARLY EVENING HOURS MONDAY. 
  DURING THIS PERIOD...RELATIVE HUMIDITY VALUES WILL BE BELOW 15 
  PERCENT. 

* WINDS...SUSTAINED 20-FOOT SOUTHWEST TO WEST WINDS OF 15 TO 30 
  MPH WITH GUSTS BETWEEN 35 AND 50 MPH. 

* RELATIVE HUMIDITY...THE MINIMUM RELATIVE HUMIDITY VALUES WILL 
  RANGE FROM 5 TO 15 PERCENT. 

* IMPACTS...THE STRONG WINDS AND LOW RELATIVE HUMIDITIES WILL 
  COMBINE TO CREATE CRITICAL FIRE WEATHER CONDITIONS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

PLEASE ADVISE THE APPROPRIATE OFFICIALS OR FIRE CREWS IN THE
FIELD OF THE FIRE WEATHER WATCH FOR MUCH OF SOUTHEAST ARIZONA.

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.

&&

$$
426 
WWUS85 KTWC 211044
RFWTWC

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE TUCSON AZ
344 AM MST MON MAR 21 2011

...RED FLAG WARNING IN EFFECT FROM 10 AM THIS MORNING TO 7 PM THIS
EVENING FOR GREENLEE...GRAHAM...COCHISE...SOUTHEAST AND SOUTH
CENTRAL PINAL... SANTA CRUZ...AND CENTRAL AND EASTERN PIMA
COUNTIES DUE TO THE POTENTIAL FOR STRONG AND GUSTY WINDS...LOW
RELATIVE HUMIDITIES... AND A HIGH TO VERY HIGH FIRE DANGER
RATING...

AZZ146>148-220000-
/O.CON.KTWC.FW.W.0006.110321T1700Z-110322T0200Z/
ARIZONA FIRE WEATHER ZONE 146
NORTHERN GREENLEE COUNTY-GRAHAM COUNTY NORTH OF GILA RIVER-
APACHE NF/SAN CARLOS BIA/SDC-ARIZONA FIRE WEATHER ZONE 147
SOUTHEAST PINAL COUNTY-WESTERN PIMA COUNTY-
TOHONO OODHAM NATION-CORONADO NF/PAPAGO BIA/TDC-
ARIZONA FIRE WEATHER ZONE 148
GRAHAM COUNTY SOUTH OF GILA RIVER-TUCSON/MARANA/GREEN
VALLEY-SANTA CRUZ-COCHISE COUNTY-CORONADO NF/
SAFFORD BLM/TDC-
344 AM MST MON MAR 21 2011

...RED FLAG WARNING REMAINS IN EFFECT FROM 10 AM THIS MORNING TO
7 PM MST THIS EVENING...

A RED FLAG WARNING REMAINS IN EFFECT FROM 10 AM THIS MORNING TO
7 PM MST THIS EVENING. 

* AFFECTED AREA...THE RED FLAG WARNING IS IN EFFECT FOR 
  GREENLEE...GRAHAM...COCHISE...SOUTHEAST AND SOUTH CENTRAL 
  PINAL...SANTA CRUZ...AND CENTRAL AND EASTERN PIMA COUNTIES. 

* TIMING...WINDS WILL BECOME VERY STRONG AND GUSTY THIS MORNING
  AND CONTINUE THROUGH THE EARLY EVENING HOURS. DURING THIS
  PERIOD...RELATIVE HUMIDITY VALUES WILL BE BELOW 15 PERCENT.

* WINDS...SUSTAINED 20-FOOT SOUTHWEST TO WEST WINDS OF 15 TO 30 
  MPH WITH GUSTS BETWEEN 35 AND 50 MPH. 

* RELATIVE HUMIDITY...THE MINIMUM RELATIVE HUMIDITY VALUES WILL 
  RANGE FROM 5 TO 15 PERCENT. 

* IMPACTS...THE STRONG WINDS AND LOW RELATIVE HUMIDITIES WILL 
  COMBINE TO CREATE CRITICAL FIRE WEATHER CONDITIONS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

PLEASE ADVISE THE APPROPRIATE OFFICIALS OR FIRE CREWS IN THE
FIELD OF THE FIRE WEATHER WATCH FOR MUCH OF SOUTHEAST ARIZONA.

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.

&&

$$
638 
WWUS85 KTWC 212212
RFWTWC

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE TUCSON AZ
312 PM MST MON MAR 21 2011

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 PM THIS EVENING FOR
GREENLEE...GRAHAM...COCHISE...SANTA CRUZ...AND EASTERN PIMA
COUNTIES DUE TO STRONG AND GUSTY WINDS...LOW RELATIVE HUMIDITIES...
AND A HIGH TO VERY HIGH FIRE DANGER RATING...

AZZ147-212315-
/O.CAN.KTWC.FW.W.0006.000000T0000Z-110322T0200Z/
ARIZONA FIRE WEATHER ZONE 147
SOUTHEAST PINAL COUNTY-WESTERN PIMA COUNTY-
TOHONO OODHAM NATION-CORONADO NF/PAPAGO BIA/TDC-
312 PM MST MON MAR 21 2011

...RED FLAG WARNING IS CANCELLED...

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

ALTHOUGH WIND SPEEDS REMAIN STRONG ACROSS FIRE WEATHER ZONE 147...
RELATIVE HUMIDITY VALUES HAVE INCREASED MARKEDLY THIS AFTERNOON
AND ARE WELL ABOVE CRITICAL FIRE WEATHER THRESHOLDS. THEREFORE...
THE RED FLAG WARNING FOR SOUTHEAST AND SOUTH CENTRAL PINAL COUNTY
AND THE TOHONO OODHAM NATIONAL HAS BEEN CANCELLED.

$$

AZZ146-148-220200-
/O.CON.KTWC.FW.W.0006.000000T0000Z-110322T0200Z/
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-
312 PM MST MON MAR 21 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 REMAINS IN EFFECT FOR
  GREENLEE...GRAHAM...COCHISE...SANTA CRUZ...AND EASTERN PIMA
  COUNTIES.

* TIMING...STRONG AND GUSTY SOUTHWEST TO WEST WINDS WILL CONTINUE
  THROUGH THE EARLY EVENING HOURS TONIGHT BEFORE DIMINISHING. DURING
  THIS PERIOD...RELATIVE HUMIDITY VALUES WILL BE BELOW 15 PERCENT.

* WINDS...SUSTAINED 20-FOOT SOUTHWEST TO WEST WINDS OF 15 TO 35 MPH
  WITH GUSTS BETWEEN 35 AND 50 MPH.

* RELATIVE HUMIDITY...THE MINIMUM RELATIVE HUMIDITY VALUES WILL 
  RANGE FROM 5 TO 15 PERCENT. 

* IMPACTS...THE STRONG WINDS AND LOW RELATIVE HUMIDITIES 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.

&&

$$
841 
WWUS85 KTWC 220200
RFWTWC

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE TUCSON AZ
700 PM MST MON MAR 21 2011

AZZ146-148-220300-
/O.EXP.KTWC.FW.W.0006.000000T0000Z-110322T0200Z/
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-
700 PM MST MON MAR 21 2011

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

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

ALTHOUGH THE STORM SYSTEM RESPONSIBLE FOR THE STRONG AND GUSTY
SOUTHWEST WINDS ACROSS ALL OF SOUTHEAST ARIZONA TODAY CONTINUES TO
MAKE ITS WAY EAST THROUGH THE AREA THIS EVENING...RELATIVE
HUMIDITY VALUES CONTINUE TO RISE AND AND WIND SPEEDS CONTINUE TO
LOWER INTO THE EVENING HOURS.

SINCE BOTH RELATIVE HUMIDITY VALUES AND WIND SPEEDS ARE NO LONGER
WITHIN CRITICAL FIRE WEATHER THRESHOLDS OVER THE MAJORITY OF THE
WARNING AREA...THE RED FLAG WARNING WILL BE ALLOWED TO EXPIRE.

$$


HTTP://WEATHER.GOV/TUCSON

Nearby

Red Flag Warnings in Arizona, 2011Every 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.