Alert archive / Arizona / Red Flag Warnings in 2017
Red Flag Warning 1, NWS Tucson, AZ
NWS Tucson, AZ issued this red flag warning at Mar 27, 2017, 2:18 PM MST for 6 counties in Arizona. It took effect at Mar 28, 2017, 11:00 AM MST. It was in force for . 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 27, 2017, 2:18 PM MST (21:18 UTC)
- In effect from
- Mar 28, 2017, 11:00 AM MST
- Expired
- Mar 28, 2017, 9:08 AM MST
- In force
- 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 21:19 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, 9.3 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
- 2847 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 7 m²/s²
- 0-3 km storm-relative helicity
- 144 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
376 WWUS85 KTWC 272118 RFWTWC URGENT - FIRE WEATHER MESSAGE National Weather Service Tucson AZ 218 PM MST Mon Mar 27 2017 AZZ151-152-281400- /O.NEW.KTWC.FW.W.0001.170328T1800Z-170329T0200Z/ 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- 218 PM MST Mon Mar 27 2017 ...RED FLAG WARNING IN EFFECT FROM 11 AM TO 7 PM MST TUESDAY FOR STRONG WINDS...LOW RELATIVE HUMIDITY AND A HIGH FIRE DANGER FOR SOUTHERN FIRE WEATHER ZONES 151 AND 152 INCLUDING SOUTHEAST PIMA...EASTERN SANTA CRUZ AND COCHSIE COUNTIES... The National Weather Service in Tucson has issued a Red Flag Warning, which is in effect from 11 AM to 7 PM MST Tuesday. * TIMING...11 AM MST until 7 PM MST Tuesday. * 20 FT WINDS...West to northwest 20 TO 30 mph with gusts between 40-45 mph. The strongest winds will be in Cochise county. * RELATIVE HUMIDITY...Minimum relative humidity values of 13-16 percent will be realized in the afternoon. * 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. && $$ Visit us on Facebook...Twitter...YouTube...and at weather.gov/Tucson
2 follow-up statements
345 WWUS85 KTWC 281114 RFWTWC URGENT - FIRE WEATHER MESSAGE National Weather Service Tucson AZ 414 AM MST Tue Mar 28 2017 AZZ151-152-281915- /O.CON.KTWC.FW.W.0001.170328T1800Z-170329T0200Z/ Arizona Fire Weather Zone 151 Eastern Pima County-Southeastern Pinal County- Santa Cruz County-Western Cochise County- Coronado NF-TDC-Arizona Fire Weather Zone 152 Southern Graham County-Central and Eastern Cochise County- Southern Greenlee County- Lower Elevations of the San Carlos Apache Nation in Graham County-Coronado NF-Safford BLM-TDC- 414 AM MST Tue Mar 28 2017 ...RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM THIS MORNING TO 7 PM MST THIS EVENING FOR STRONG WINDS...LOW RELATIVE HUMIDITY AND A HIGH FIRE DANGER FOR SOUTHERN FIRE WEATHER ZONES 151 AND 152 INCLUDING SOUTHEAST PIMA...EASTERN SANTA CRUZ AND COCHSIE COUNTIES... * TIMING...11 AM MST until 7 PM MST Tuesday. * 20 FT WINDS...West to northwest 20 TO 30 mph with gusts between40-45 mph. The strongest winds will be in Cochise county. * RELATIVE HUMIDITY...Minimum relative humidity values of 13-16 percent will be realized in the afternoon. * IMPACTS...Any fires that develop or are ongoing will have the potential to spread rapidly. * For a detailed view of the hazard area...visit weather.gov/Tucson and click on the DETAILED HAZARDS TAB PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now...or are expected to develop. A combination of strong winds...low relative humidity...and dry vegetation will create the potential for rapid and erratic fire growth. Please advise the appropriate officials or fire crews in the field of the Red Flag Warning for portions of Southeast Arizona. && $$ Visit us on Facebook...Twitter...YouTube...and at weather.gov/Tucson
164 WWUS85 KTWC 281608 RFWTWC URGENT - FIRE WEATHER MESSAGE National Weather Service Tucson AZ 908 AM MST Tue Mar 28 2017 AZZ151-152-281715- /O.CAN.KTWC.FW.W.0001.170328T1800Z-170329T0200Z/ 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- 908 AM MST Tue Mar 28 2017 ...RED FLAG WARNING IS CANCELLED FOR SOUTHERN FIRE WEATHER ZONES 151 AND 152 INCLUDING SOUTHEAST PIMA...EASTERN SANTA CRUZ AND COCHSIE COUNTIES... The National Weather Service in Tucson has cancelled the Red Flag Warning. A deep plume of moisture moved into Southeast Pima, Santa Cruz and Cochise counties overnight, resulting in showers and much higher than anticipated relative humidities this morning. Although strong west to northwest winds will be present today, minimum relative humidity values this afternoon will only get down to near 20 percent. Therefore, the Red Flag Warning for Southern Fire Weather Zones 151 and 152 have 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 27, 2:18 PM MST | Wind Advisory | TWC | Cochise, Graham, Greenlee, Pima, Pinal, Santa Cruz | 23 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.