Alert archive / Arizona / Red Flag Warnings in 2022

Red Flag Warning 13, NWS Tucson, AZ

May 10, 20226 counties in Arizona

NWS Tucson, AZ issued this red flag warning at May 10, 2022, 2:32 AM MST for 6 counties in Arizona. It took effect at May 11, 2022, 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
May 10, 2022, 2:32 AM MST (09:32 UTC)
In effect from
May 11, 2022, 10:00 AM MST
Expired
May 11, 2022, 7:00 PM MST
In force
9 hr
Issued by
NWS Tucson, AZ

Counties Cochise County, AZ, Graham County, AZ, Greenlee County, AZ, Pima County, AZ, Pinal County, AZ, Santa Cruz County, AZ

The radar

The Tucson radar (KEMX), 61 km from the middle of the area, began a volume at 09:29 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Tuscon, AZ (KTUS), launched 00:00Z, 9.5 hours before the alert went out and 49 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Tuscon, AZ at 00:00Z on 2022-05-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Tuscon, AZ at 00:00Z on 2022-05-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 40 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
4237 m above ground
0-6 km bulk shear
45 kt
0-1 km storm-relative helicity
40 m²/s²
0-3 km storm-relative helicity
60 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

552 
WWUS85 KTWC 100932
RFWTWC

URGENT - FIRE WEATHER MESSAGE
National Weather Service Tucson AZ
232 AM MST Tue May 10 2022

AZZ153-102300-
/O.NEW.KTWC.FW.W.0013.220511T1700Z-220512T0200Z/
Arizona Fire Weather Zone 153
Northern Graham County-Northern Greenlee County-
White and Gila Mountains-Apache Sitgreaves NF-
Southern San Carlos Reservation above 5000 feet-SDC-
232 AM MST Tue May 10 2022

...RED FLAG WARNING IN EFFECT FROM 10 AM TO 7 PM MST WEDNESDAY
FOR STRONG WINDS, LOW HUMIDITY AND A VERY HIGH TO EXTREME FIRE
DANGER RATING FOR FIRE WEATHER ZONE 153...

The National Weather Service in Tucson has issued a Red Flag
Warning, which is in effect from 10 AM to 7 PM MST Wednesday. 

* AFFECTED AREA...Fire weather zone 153, the White Mountains.

* TIMING...10 AM TO 7 PM Wednesday. 

* 20 FT WINDS...15 to 25 mph with gusts to 40 mph. 

* RELATIVE HUMIDITY...7 to 14 percent. 

* IMPACTS...Any fires that develop or are ongoing will have the 
  potential to spread rapidly.

* FOR A DETAILED VIEW OF THE HAZARD AREA...Visit 
  weather.gov/Tucson and click on the Detailed Hazards Icon.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Red Flag Warning means that critical fire weather conditions
are either occurring now...or are expected to develop. A
combination of strong winds...low relative humidity...and dry
vegetation 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.

&&

$$


Visit us on Facebook...Twitter...YouTube...and at weather.gov/Tucson
4 follow-up statements
281 
WWUS85 KTWC 101928
RFWTWC

URGENT - FIRE WEATHER MESSAGE
National Weather Service Tucson AZ
1228 PM MST Tue May 10 2022

AZZ152-154-111200-
/O.EXA.KTWC.FW.W.0013.220511T1700Z-220512T0200Z/
Arizona Fire Weather Zone 152
Eastern half Desert Grasslands FDRA including elevations up to
5500 feet in Southwest Graham County and Eastern two thirds of
Cochise County-Southern San Carlos Reservation-
Southern Greenlee County below 5000 feet-TDC-
Arizona Fire Weather Zone 154
Forest Woodlands FDRA including the Sky Islands of Southeast
Arizona above 5500 feet-Coronado NF-TDC-
1228 PM MST Tue May 10 2022

...RED FLAG WARNING IN EFFECT FROM 10 AM TO 7 PM MST WEDNESDAY
FOR STRONG WINDS, LOW HUMIDITY AND A VERY HIGH TO EXTREME FIRE
DANGER RATING FOR FIRE WEATHER ZONES 152 AND 154...

The National Weather Service in Tucson has issued a Red Flag
Warning, which is in effect from 10 AM to 7 PM MST Wednesday. 

* AFFECTED AREA...Fire weather zones 152 AND 154.

* TIMING...10 AM TO 7 PM Wednesday.

* 20 FT WINDS...15 to 25 mph with gusts to 40 mph.

* RELATIVE HUMIDITY...6 to 14 percent.

* IMPACTS...Any fires that develop or are ongoing will have the 
  potential to spread rapidly.

* FOR A DETAILED VIEW OF THE HAZARD AREA...Visit 
  weather.gov/Tucson and click on the Detailed Hazards Icon.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Red Flag Warning means that critical fire weather conditions
are either occurring now...or are expected to develop. A
combination of strong winds...low relative humidity...and dry
vegetation 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.

&&

$$

AZZ153-111200-
/O.CON.KTWC.FW.W.0013.220511T1700Z-220512T0200Z/
Arizona Fire Weather Zone 153
Northern Graham County-Northern Greenlee County-
White and Gila Mountains-Apache Sitgreaves NF-
Southern San Carlos Reservation above 5000 feet-SDC-
1228 PM MST Tue May 10 2022

...RED FLAG WARNING REMAINS IN EFFECT FROM 10 AM TO 7 PM MST
WEDNESDAY FOR STRONG WINDS, LOW HUMIDITY AND A VERY HIGH TO
EXTREME FIRE DANGER RATING FOR FIRE WEATHER ZONE 153...

* AFFECTED AREA...Fire weather zone 153, the White Mountains.

* TIMING...10 AM TO 7 PM Wednesday.

* 20 FT WINDS...20 to 25 mph with gusts to around 40 mph.

* RELATIVE HUMIDITY...7 to 14 percent.

* IMPACTS...Any fires that develop or are ongoing will have the 
  potential to spread rapidly.

* FOR A DETAILED VIEW OF THE HAZARD AREA...Visit 
  weather.gov/Tucson and click on the Detailed Hazards Icon.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Red Flag Warning means that critical fire weather conditions
are either occurring now...or are expected to develop. A
combination of strong winds...low relative humidity...and dry
vegetation 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.

&&

$$


Visit us on Facebook...Twitter...YouTube...and at weather.gov/Tucson
958 
WWUS85 KTWC 110854
RFWTWC

URGENT - FIRE WEATHER MESSAGE
National Weather Service Tucson AZ
154 AM MST Wed May 11 2022

AZZ152>154-112200-
/O.CON.KTWC.FW.W.0013.220511T1700Z-220512T0200Z/
Arizona Fire Weather Zone 152
Eastern half Desert Grasslands FDRA including elevations up to
5500 feet in Southwest Graham County and Eastern two thirds of
Cochise County-Southern San Carlos Reservation-
Southern Greenlee County below 5000 feet-TDC-
Arizona Fire Weather Zone 153
Northern Graham County-Northern Greenlee County-
White and Gila Mountains-Apache Sitgreaves NF-
Southern San Carlos Reservation above 5000 feet-SDC-
Arizona Fire Weather Zone 154
Forest Woodlands FDRA including the Sky Islands of Southeast
Arizona above 5500 feet-Coronado NF-TDC-
154 AM MST Wed May 11 2022

...RED FLAG WARNING REMAINS IN EFFECT FROM 10 AM THIS MORNING TO
7 PM MST THIS EVENING FOR STRONG WINDS, LOW HUMIDITY AND A VERY
HIGH TO EXTREME FIRE DANGER RATING FOR FIRE WEATHER ZONES 152 AND
154...

* AFFECTED AREA...Fire weather zones 152 AND 154.

* TIMING...10 AM TO 7 PM Wednesday.

* 20 FT WINDS...15 to 25 mph with gusts to 40 mph.

* RELATIVE HUMIDITY...6 to 14 percent.

* IMPACTS...Any fires that develop or are ongoing will have the 
  potential to spread rapidly.

* FOR A DETAILED VIEW OF THE HAZARD AREA...Visit 
  weather.gov/Tucson and click on the Detailed Hazards Icon.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Red Flag Warning means that critical fire weather conditions
are either occurring now...or are expected to develop. A
combination of strong winds...low relative humidity...and dry
vegetation 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.

&&

$$


Visit us on Facebook...Twitter...YouTube...and at weather.gov/Tucson
921 
WWUS85 KTWC 112103
RFWTWC

URGENT - FIRE WEATHER MESSAGE
National Weather Service Tucson AZ
203 PM MST Wed May 11 2022

AZZ152>154-120200-
/O.CON.KTWC.FW.W.0013.000000T0000Z-220512T0200Z/
Arizona Fire Weather Zone 152
Eastern half Desert Grasslands FDRA including elevations up to
5500 feet in Southwest Graham County and Eastern two thirds of
Cochise County-Southern San Carlos Reservation-
Southern Greenlee County below 5000 feet-TDC-
Arizona Fire Weather Zone 153
Northern Graham County-Northern Greenlee County-
White and Gila Mountains-Apache Sitgreaves NF-
Southern San Carlos Reservation above 5000 feet-SDC-
Arizona Fire Weather Zone 154
Forest Woodlands FDRA including the Sky Islands of Southeast
Arizona above 5500 feet-Coronado NF-TDC-
203 PM MST Wed May 11 2022

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 PM MST THIS EVENING
FOR STRONG WINDS, LOW HUMIDITY, AND A VERY HIGH TO EXTREME FIRE
DANGER RATING FOR FIRE WEATHER ZONES 152, 153, AND 154...

* AFFECTED AREA...Fire weather zone 152.Fire weather zone 
  153.Fire weather zone 154. 

* TIMING...through 7 PM Wednesday.

* 20 FT WINDS...15 to 25 mph with gusts to 40 mph.

* RELATIVE HUMIDITY...6 to 14 percent.

* IMPACTS...Any fires that develop or are ongoing will have the 
  potential to spread rapidly.

* FOR A DETAILED VIEW OF THE HAZARD AREA...Visit 
  weather.gov/Tucson and click on the Detailed Hazards Icon.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Red Flag Warning means that critical fire weather conditions
are either occurring now...or are expected to develop. A
combination of strong winds...low relative humidity...and dry
vegetation 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.

&&

$$


Visit us on Facebook...Twitter...YouTube...and at weather.gov/Tucson
078 
WWUS85 KTWC 120214
RFWTWC

URGENT - FIRE WEATHER MESSAGE
National Weather Service Tucson AZ
714 PM MST Wed May 11 2022

AZZ152>154-120315-
/O.EXP.KTWC.FW.W.0013.000000T0000Z-220512T0200Z/
Arizona Fire Weather Zone 152
Eastern half Desert Grasslands FDRA including elevations up to
5500 feet in Southwest Graham County and Eastern two thirds of
Cochise County-Southern San Carlos Reservation-
Southern Greenlee County below 5000 feet-TDC-
Arizona Fire Weather Zone 153
Northern Graham County-Northern Greenlee County-
White and Gila Mountains-Apache Sitgreaves NF-
Southern San Carlos Reservation above 5000 feet-SDC-
Arizona Fire Weather Zone 154
Forest Woodlands FDRA including the Sky Islands of Southeast
Arizona above 5500 feet-Coronado NF-TDC-
714 PM MST Wed May 11 2022

...RED FLAG WARNING HAS EXPIRED...

Winds continue to decrease and the Red Flag Warning has been
allowed to expire at 7 PM MST.

$$


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Nearby

Red Flag Warnings in Arizona, 2022Every red flag warning in 2022

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.