Alert archive / Arizona / Red Flag Warnings in 2017
Red Flag Warning 2, NWS Tucson, AZ
NWS Tucson, AZ issued this red flag warning at Mar 30, 2017, 3:25 PM MST for 6 counties in Arizona. It took effect at Mar 31, 2017, 11:00 AM MST. It was in force for 2 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 30, 2017, 3:25 PM MST (22:25 UTC)
- In effect from
- Mar 31, 2017, 11:00 AM MST
- Expired
- Mar 31, 2017, 1:25 PM MST
- In force
- 2 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 22:23 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 (KDMA), launched 12:00Z, 10.4 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
- 2978 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 22 m²/s²
- 0-3 km storm-relative helicity
- 104 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
772 WWUS85 KTWC 302225 RFWTWC URGENT - FIRE WEATHER MESSAGE National Weather Service Tucson AZ 325 PM MST Thu Mar 30 2017 AZZ151-152-311200- /O.NEW.KTWC.FW.W.0002.170331T1800Z-170401T0200Z/ Arizona Fire Weather Zone 151 Eastern Pima County-Southeastern Pinal County- Santa Cruz County-Western Cochise County- Coronado NF-TDC-Arizona Fire Weather Zone 152 Southern Graham County-Central and Eastern Cochise County- Southern Greenlee County- Lower Elevations of the San Carlos Apache Nation in Graham County-Coronado NF-Safford BLM-TDC- 325 PM MST Thu Mar 30 2017 ...RED FLAG WARNING IN EFFECT FROM 11 AM TO 7 PM MST FRIDAY FOR STRONG WINDS...LOW RELATIVE HUMIDITY AND A HIGH FIRE DANGER FOR SOUTHERN PORTIONS OF FIRE WEATHER ZONES 151 AND 152 INCLUDING MOST OF COCHISE COUNTY AND PORTIONS OF SOUTHERN GRAHAM AND GREENLEE COUNTIES. The National Weather Service in Tucson has issued a Red Flag Warning, which is in effect from 11 AM to 7 PM MST Friday. * TIMING...11 AM MST to 7 PM MST Friday. * WINDS...South to southwest winds 20 to 30 mph with gusts between 40 and 45 mph. Winds turning to the west and remaining gusty with cold frontal passage in the afternoon. * RELATIVE HUMIDITY...Minimum relative humidity values of 10 to 18 percent during the afternoon hours. * 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 TAB. 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. && $$ Visit us on Facebook...Twitter...YouTube...and at weather.gov/Tucson
2 follow-up statements
142 WWUS85 KTWC 311141 RFWTWC URGENT - FIRE WEATHER MESSAGE National Weather Service Tucson AZ 441 AM MST Fri Mar 31 2017 AZZ151-152-010200- /O.CON.KTWC.FW.W.0002.170331T1800Z-170401T0200Z/ Arizona Fire Weather Zone 151 Eastern Pima County-Southeastern Pinal County- Santa Cruz County-Western Cochise County- Coronado NF-TDC-Arizona Fire Weather Zone 152 Southern Graham County-Central and Eastern Cochise County- Southern Greenlee County- Lower Elevations of the San Carlos Apache Nation in Graham County-Coronado NF-Safford BLM-TDC- 441 AM MST Fri Mar 31 2017 ...RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM THIS MORNING TO 7 PM MST THIS EVENING FOR STRONG WINDS...LOW RELATIVE HUMIDITY AND A HIGH FIRE DANGER FOR SOUTHERN PORTIONS OF FIRE WEATHER ZONES 151 AND 152 INCLUDING MOST OF COCHISE COUNTY AND PORTIONS OF SOUTHERN GRAHAM AND GREENLEE COUNTIES... * TIMING...11 AM MST this morning to 7 PM MST this evening. * WINDS...South to southwest winds 20 to 30 mph with gusts between 40 and 45 mph. Winds turning to the west and remaining gusty following cold frontal passage by midday. * RELATIVE HUMIDITY...Minimum relative humidity values of 10 to 18 percent during the afternoon hours. * IMPACTS...Any fires that develop or are ongoing will have the potential to spread rapidly. * For a detailed view of the hazard area...visit weather.gov/Tucson and click on the DETAILED HAZARDS TAB. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now...or are expected to develop. A combination of strong winds...low relative humidity...and dry vegetation will create the potential for rapid and erratic fire growth. Please advise the appropriate officials or fire crews in the field of the Red Flag Warning for portions of Southeast Arizona. && $$ Visit us on Facebook...Twitter...YouTube...and at weather.gov/Tucson
436 WWUS85 KTWC 312025 RFWTWC URGENT - FIRE WEATHER MESSAGE National Weather Service Tucson AZ 125 PM MST Fri Mar 31 2017 AZZ151-152-312130- /O.CAN.KTWC.FW.W.0002.000000T0000Z-170401T0200Z/ Arizona Fire Weather Zone 151 Eastern Pima County-Southeastern Pinal County- Santa Cruz County-Western Cochise County- Coronado NF-TDC-Arizona Fire Weather Zone 152 Southern Graham County-Central and Eastern Cochise County- Southern Greenlee County- Lower Elevations of the San Carlos Apache Nation in Graham County-Coronado NF-Safford BLM-TDC- 125 PM MST Fri Mar 31 2017 ...RED FLAG WARNING IS CANCELLED FOR FOR FIRE WEATHER ZONES 151 AND 152... The National Weather Service in Tucson has cancelled the Red Flag Warning. Moisture associated with the cold front has resulted in higher relative humidity levels than anticipated. Although strong and gusty west to southwest winds are expected to continue this afternoon, minimum relative humidity values will not reach critically low levels. Therefore, the Red Flag Warning has been cancelled. $$ Visit us on Facebook...Twitter...YouTube...and at weather.gov/Tucson
The office that day
Everything else NWS Tucson, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 30, 10:18 AM MST | Wind Advisory | TWC | Cochise, Graham, Greenlee, Pima, Pinal, Santa Cruz | 31 hr |
| Mar 30, 3:35 PM MST | Blowing Dust Advisory | TWC | Cochise | 25 hr |
Nearby
Red Flag Warnings in Arizona, 2017Every red flag warning in 2017
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.