Alert archive / Arizona / Red Flag Warnings in 2021
Red Flag Warning 3, NWS Tucson, AZ
NWS Tucson, AZ issued this red flag warning at Mar 8, 2021, 2:50 PM MST for 6 counties in Arizona. It took effect at Mar 9, 2021, 1:00 PM MST. It was in force for 6 hr. 1 report came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Mar 8, 2021, 2:50 PM MST (21:50 UTC)
- In effect from
- Mar 9, 2021, 1:00 PM MST
- Expired
- Mar 9, 2021, 7:00 PM MST
- In force
- 6 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 21:54 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Mar 9, 5:15 PM MST | DUST STORM | 7 Nne Maricopa, AZ | DELAYED REPORT. DENSE BLOWING DUST WAS OBSERVED ON AN ADOT WEBCAM ALONG HIGHWAY 347 BETWEEN RIGGS RD. AND CASA BLANCA RD. VISIBILITY ESTIMATED TO BE DOWN TO 1/4 MILE. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Tuscon, AZ (KTUS), launched 12:00Z, 9.8 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
- 3300 m above ground
- 0-6 km bulk shear
- 48 kt
- 0-1 km storm-relative helicity
- 174 m²/s²
- 0-3 km storm-relative helicity
- 304 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
716 WWUS85 KTWC 082150 RFWTWC URGENT - FIRE WEATHER MESSAGE National Weather Service Tucson AZ 250 PM MST Mon Mar 8 2021 AZZ151-152-154-091230- /O.NEW.KTWC.FW.W.0003.210309T2000Z-210310T0200Z/ 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- 250 PM MST Mon Mar 8 2021 ...RED FLAG WARNING IN EFFECT FROM 1 PM TO 7 PM MST TUESDAY FOR STRONG AND GUSTY SOUTHWEST WINDS, LOW RELATIVE HUMIDITY LEVELS AND A HIGH FIRE DANGER RATING FOR FIRE WEATHER ZONES 151, 152, AND 154... The National Weather Service in Tucson has issued a Red Flag Warning, which is in effect from 1 PM to 7 PM MST Tuesday. * AFFECTED AREA...Southeastern portion of Fire Weather Zone 151. Most of Fire Weather Zones 152 and 154. * TIMING...1 PM to 7 PM MST Tuesday * WINDS...Southwest 20 to 30 mph with gusts to 40-45 mph. * RELATIVE HUMIDITY...10 to 15 pct. * 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
3 follow-up statements
881 WWUS85 KTWC 091008 RFWTWC URGENT - FIRE WEATHER MESSAGE National Weather Service Tucson AZ 308 AM MST Tue Mar 9 2021 AZZ151-152-154-100115- /O.CON.KTWC.FW.W.0003.210309T2000Z-210310T0200Z/ 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- 308 AM MST Tue Mar 9 2021 ...RED FLAG WARNING REMAINS IN EFFECT FROM 1 PM THIS AFTERNOON TO 7 PM MST THIS EVENING FOR STRONG AND GUSTY SOUTHWEST WINDS, LOW RELATIVE HUMIDITY LEVELS AND A HIGH FIRE DANGER RATING FOR FIRE WEATHER ZONES 151, 152, AND 154... * AFFECTED AREA...Southeastern portion of Fire Weather Zone 151. Most of Fire Weather Zones 152 and 154. * TIMING...1 PM to 7 PM MST Tuesday * WINDS...Southwest 20 to 30 mph with gusts to 40-45 mph. * RELATIVE HUMIDITY...10 to 15 pct. * 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
584 WWUS85 KTWC 092135 RFWTWC URGENT - FIRE WEATHER MESSAGE National Weather Service Tucson AZ 235 PM MST Tue Mar 9 2021 AZZ151-152-154-100200- /O.CON.KTWC.FW.W.0003.000000T0000Z-210310T0200Z/ 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- 235 PM MST Tue Mar 9 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 PM MST THIS EVENING FOR STRONG AND GUSTY SOUTHWEST WINDS, LOW RELATIVE HUMIDITY LEVELS AND A HIGH FIRE DANGER RATING FOR FIRE WEATHER ZONES 151, 152, AND 154... * AFFECTED AREA...Southeastern portion of Fire Weather Zone 151. Most of Fire Weather Zones 152 and 154. * TIMING...Until 7 PM MST this evening. * WINDS...Southwest 20 to 30 mph with gusts to 40-45 mph. * RELATIVE HUMIDITY...10 to 15 pct. * 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. && $$ Visit us on Facebook...Twitter...YouTube...and at weather.gov/Tucson
954 WWUS85 KTWC 100157 RFWTWC URGENT - FIRE WEATHER MESSAGE National Weather Service Tucson AZ 657 PM MST Tue Mar 9 2021 AZZ151-152-154-100300- /O.EXP.KTWC.FW.W.0003.000000T0000Z-210310T0200Z/ Arizona Fire Weather Zone 151 Western half Desert Grasslands FDRA including elevations up to 5500 feet in Southeast corner of Pinal County- Extreme Eastern Pima County-Western third of Cochise County- Santa Cruz County-TDC-Arizona Fire Weather Zone 152 Eastern half Desert Grasslands FDRA including elevations up to 5500 feet in Southwest Graham County and Eastern two thirds of Cochise County-Southern San Carlos Reservation- Southern Greenlee County below 5000 feet-TDC- Arizona Fire Weather Zone 154 Forest Woodlands FDRA including the Sky Islands of Southeast Arizona above 5500 feet-Coronado NF-TDC- 657 PM MST Tue Mar 9 2021 ...RED FLAG WARNING WILL EXPIRE AT 7 PM MST THIS EVENING FOR STRONG AND GUSTY SOUTHWEST WINDS, LOW RELATIVE HUMIDITY LEVELS AND A HIGH FIRE DANGER RATING FOR FIRE WEATHER ZONES 151, 152, AND 154... Winds will slowly diminish through the evening hours. $$ 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.