Alert archive / Arizona / Red Flag Warnings in 2021
Red Flag Warning 1, NWS Tucson, AZ
NWS Tucson, AZ issued this red flag warning at Feb 27, 2021, 2:06 PM MST for 6 counties in Arizona. It took effect at Feb 28, 2021, 12:00 PM MST. It was in force for 7 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
- Feb 27, 2021, 2:06 PM MST (21:06 UTC)
- In effect from
- Feb 28, 2021, 12:00 PM MST
- Expired
- Feb 28, 2021, 7:00 PM MST
- In force
- 7 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 21:07 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 12:00Z, 9.1 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 3492 m above ground
- 0-6 km bulk shear
- 51 kt
- 0-1 km storm-relative helicity
- 120 m²/s²
- 0-3 km storm-relative helicity
- 132 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
455 WWUS85 KTWC 272106 RFWTWC URGENT - FIRE WEATHER MESSAGE National Weather Service Tucson AZ 206 PM MST Sat Feb 27 2021 AZZ151-152-154-281300- /O.UPG.KTWC.FW.A.0001.210228T2000Z-210301T0200Z/ /O.NEW.KTWC.FW.W.0001.210228T1900Z-210301T0200Z/ Arizona Fire Weather Zone 151 Western half Desert Grasslands FDRA including elevations up to 5500 feet in Southeast corner of Pinal County- Extreme Eastern Pima County-Western third of Cochise County- Santa Cruz County-TDC-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- 206 PM MST Sat Feb 27 2021 ...RED FLAG WARNING IN EFFECT FROM NOON TO 7 PM MST SUNDAY FOR STRONG AND GUSTY WEST TO NORTHWEST WINDS, LOW RELATIVE HUMIDITY AND A HIGH DANGER RATING FOR MOST OF FIRE WEATHER ZONES 151, 152 AND PARTS OF 154... The National Weather Service in Tucson has issued a Red Flag Warning, which is in effect from noon to 7 PM MST Sunday. The Fire Weather Watch is no longer in effect. * AFFECTED AREA...Zones 151, 152 and 154, generally terrain below about 7,000 ft east and south of a line from Patagonia Lake, to near Cascabel, Klondike, Fort Thomas and east to Clifton. * TIMING...Sunday from Noon through 7 PM. * WINDS...West to northwest 20 to 30 mph with gusts up to 45 mph. Higher gusts possible over higher terrain, especially the Chiricahua Mountains. * RELATIVE HUMIDITY...7 to 13 percent. * IMPACTS...Any fires that develop or are ongoing will have the potential to spread rapidly and be resistant to control. * 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. && $$ Cerniglia Visit us on Facebook...Twitter...YouTube...and at weather.gov/Tucson
3 follow-up statements
267 WWUS85 KTWC 281144 RFWTWC URGENT - FIRE WEATHER MESSAGE National Weather Service Tucson AZ 444 AM MST Sun Feb 28 2021 AZZ151-152-154-282300- /O.CON.KTWC.FW.W.0001.210228T1900Z-210301T0200Z/ Arizona Fire Weather Zone 151 Western half Desert Grasslands FDRA including elevations up to 5500 feet in Southeast corner of Pinal County- Extreme Eastern Pima County-Western third of Cochise County- Santa Cruz County-TDC-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- 444 AM MST Sun Feb 28 2021 ...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TODAY TO 7 PM MST THIS EVENING FOR STRONG AND GUSTY WEST TO NORTHWEST WINDS, LOW RELATIVE HUMIDITY AND A HIGH DANGER RATING FOR MOST OF FIRE WEATHER ZONES 151, 152 AND PARTS OF 154... * AFFECTED AREA...Zones 151, 152 and parts of 154. Generally terrain below about 7,000 ft and east and south of a line from Patagonia Lake, to near Cascabel, to Klondyke, to Fort Thomas and then to east to Clifton. * TIMING...Noon through 7 PM today. * WINDS...West to northwest 20 to 35 mph with gusts up to 45 mph. Some stronger gusts possible over the higher terrain. * RELATIVE HUMIDITY...6 to 13 percent. * IMPACTS...Any fires that develop or are ongoing will have the potential to spread rapidly and be resistant to control. * 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
371 WWUS85 KTWC 282120 RFWTWC URGENT - FIRE WEATHER MESSAGE National Weather Service Tucson AZ 220 PM MST Sun Feb 28 2021 AZZ151-152-154-010200- /O.CON.KTWC.FW.W.0001.000000T0000Z-210301T0200Z/ Arizona Fire Weather Zone 151 Western half Desert Grasslands FDRA including elevations up to 5500 feet in Southeast corner of Pinal County- Extreme Eastern Pima County-Western third of Cochise County- Santa Cruz County-TDC-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- 220 PM MST Sun Feb 28 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 PM MST THIS EVENING FOR STRONG AND GUSTY WEST TO NORTHWEST WINDS, VERY LOW RELATIVE HUMIDITY AND A HIGH DANGER RATING FOR MOST OF FIRE WEATHER ZONES 151, 152 AND PARTS OF 154... * AFFECTED AREA...Zones 151, 152 and parts of 154. Generally terrain below about 7,000 ft and east and south of a line from Patagonia Lake, to near Cascabel, to Klondyke, to Fort Thomas and then to east to Clifton. * TIMING...Through 7 PM today. * WINDS...Currently West to northwest 20 to 35 mph with gusts up to 45 mph. Winds will begin to ease most locations after 1600. The Gila River Valley will hold onto strong winds a bit later into the evening hours. * RELATIVE HUMIDITY...6 to 11 percent. * IMPACTS...Any fires that develop or are ongoing will have the potential to spread rapidly and be resistant to control. * 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. && $$ Cerniglia Visit us on Facebook...Twitter...YouTube...and at weather.gov/Tucson
486 WWUS85 KTWC 010153 RFWTWC URGENT - FIRE WEATHER MESSAGE National Weather Service Tucson AZ 653 PM MST Sun Feb 28 2021 AZZ151-152-154-010300- /O.EXP.KTWC.FW.W.0001.000000T0000Z-210301T0200Z/ Arizona Fire Weather Zone 151 Western half Desert Grasslands FDRA including elevations up to 5500 feet in Southeast corner of Pinal County- Extreme Eastern Pima County-Western third of Cochise County- Santa Cruz County-TDC-Arizona Fire Weather Zone 152 Eastern half Desert Grasslands FDRA including elevations up to 5500 feet in Southwest Graham County and Eastern two thirds of Cochise County-Southern San Carlos Reservation- Southern Greenlee County below 5000 feet-TDC- Arizona Fire Weather Zone 154 Forest Woodlands FDRA including the Sky Islands of Southeast Arizona above 5500 feet-Coronado NF-TDC- 653 PM MST Sun Feb 28 2021 ...RED FLAG WARNING WILL EXPIRE AT 7 PM MST THIS EVENING FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 151, 152, AND 154... Winds will gradually diminish through the next hour or so, therefore the Red Flag Waring will be allowed to expire. $$ Visit us on Facebook...Twitter...YouTube...and at weather.gov/Tucson
Nearby
Red Flag Warnings in Arizona, 2021Every red flag warning in 2021
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.