Alert archive / Arizona / Red Flag Warnings in 2017
Red Flag Warning 9, NWS Tucson, AZ
NWS Tucson, AZ issued this red flag warning at May 5, 2017, 1:05 PM MST for 6 counties in Arizona. It took effect at May 6, 2017, 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 5, 2017, 1:05 PM MST (20:05 UTC)
- In effect from
- May 6, 2017, 10:00 AM MST
- Expired
- May 6, 2017, 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 20:04 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, 8.1 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
- 4411 m above ground
- 0-6 km bulk shear
- 9 kt
- 0-1 km storm-relative helicity
- -17 m²/s²
- 0-3 km storm-relative helicity
- 47 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
284 WWUS85 KTWC 052005 RFWTWC URGENT - FIRE WEATHER MESSAGE National Weather Service Tucson AZ 105 PM MST Fri May 5 2017 AZZ150>152-061200- /O.UPG.KTWC.FW.A.0006.170506T1700Z-170507T0200Z/ /O.NEW.KTWC.FW.W.0009.170506T1700Z-170507T0200Z/ Arizona Fire Weather Zone 150 Western Pima County-South Central Pinal County- Tohono O'Odham Nation-TDC-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 Greenlee County-Central and Eastern Cochise County- Southern Graham County-Southern San Carlos Apache Nation- 105 PM MST Fri May 5 2017 ...RED FLAG WARNING IN EFFECT FROM 10 AM TO 7 PM MST SATURDAY FOR high fire danger, low humidities, and gusty winds... The National Weather Service in Tucson has issued a Red Flag Warning, which is in effect from 10 AM to 7 PM MST Saturday. The Fire Weather Watch is no longer in effect. * TIMING...10 am Saturday until 7 pm Saturday. * WINDS...South to southwest winds will increase through the morning hours and peak in the afternoon at 20 to 30 mph with gusts to 40 mph. The winds will generally be stronger across zone 150 and higher terrain across the watch area. * RELATIVE HUMIDITY...Expected to begin dropping below 15% around 10 am with minimum humidity levels in the 9-14% range. * IMPACTS...Any fires that develop or are ongoing will have the potential to spread rapidly, especially across lower elevation grasslands. * 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. && $$ Visit us on Facebook...Twitter...YouTube...and at weather.gov/Tucson
3 follow-up statements
046 WWUS85 KTWC 061058 RFWTWC URGENT - FIRE WEATHER MESSAGE National Weather Service Tucson AZ 358 AM MST Sat May 6 2017 AZZ150>152-062230- /O.CON.KTWC.FW.W.0009.170506T1700Z-170507T0200Z/ Arizona Fire Weather Zone 150 Western Pima County-South Central Pinal County- Tohono O'Odham Nation-TDC-Arizona Fire Weather Zone 151 Eastern Pima County-Southeastern Pinal County- Santa Cruz County-Western Cochise County- Coronado NF-TDC-Arizona Fire Weather Zone 152 Southern Greenlee County-Central and Eastern Cochise County- Southern Graham County-Southern San Carlos Apache Nation- 358 AM MST Sat May 6 2017 ...RED FLAG WARNING REMAINS IN EFFECT FROM 10 AM THIS MORNING TO 7 PM MST THIS EVENING FOR HIGH FIRE DANGER, LOW HUMIDITIES, AND GUSTY WINDS... * TIMING...10 am this morning until 7 pm this evening. * WINDS...South to southwest winds will increase through the morning hours and peak this afternoon at 20 to 30 mph with gusts to 40 mph. The winds will generally be stronger across zone 150 and higher terrain across the watch area. * RELATIVE HUMIDITY...Expected to begin dropping below 15 percent around 10 am with minimum humidity levels in the 9 to 14 percent range. * IMPACTS...Any fires that develop or are ongoing will have the potential to spread rapidly, especially across lower elevation grasslands. * FOR A DETAILED VIEW OF THE HAZARD AREA...Visit weather.gov/Tucson and click on the Detailed Hazards icon. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now...or are expected to develop. A combination of strong winds...low relative humidity...and dry vegetation will create the potential for rapid and erratic fire growth. Please advise the appropriate officials or fire crews in the field of the Red Flag Warning for portions of Southeast Arizona. && $$ Visit us on Facebook...Twitter...YouTube...and at weather.gov/Tucson
614 WWUS85 KTWC 062119 RFWTWC URGENT - FIRE WEATHER MESSAGE National Weather Service Tucson AZ 219 PM MST Sat May 6 2017 AZZ150>152-070200- /O.CON.KTWC.FW.W.0009.000000T0000Z-170507T0200Z/ Arizona Fire Weather Zone 150 Western Pima County-South Central Pinal County- Tohono O'Odham Nation-TDC-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 Greenlee County-Central and Eastern Cochise County- Southern Graham County-Southern San Carlos Apache Nation- 219 PM MST Sat May 6 2017 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 PM MST THIS EVENING FOR STRONG GUSTY WINDS, LOW RELATIVE HUMIDITY, AND HIGH FIRE DANGER... * TIMING...until 7 PM MST this evening. * 20-FOOT WINDS...South to southwest 20 to 30 mph with gusts to 45 mph. * RELATIVE HUMIDITY...8 to 15 percent. * IMPACTS...Any fires that develop or are ongoing will have the potential to spread rapidly, especially across lower elevation grasslands. * 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. && $$ Visit us on Facebook...Twitter...YouTube...and at weather.gov/Tucson
362 WWUS85 KTWC 070147 RFWTWC URGENT - FIRE WEATHER MESSAGE National Weather Service Tucson AZ 647 PM MST Sat May 6 2017 AZZ150>152-070300- /O.EXP.KTWC.FW.W.0009.000000T0000Z-170507T0200Z/ Arizona Fire Weather Zone 150 Western Pima County-South Central Pinal County- Tohono O'Odham Nation-TDC-Arizona Fire Weather Zone 151 Eastern Pima County-Southeastern Pinal County- Santa Cruz County-Western Cochise County- Coronado NF-TDC-Arizona Fire Weather Zone 152 Southern Greenlee County-Central and Eastern Cochise County- Southern Graham County-Southern San Carlos Apache Nation- 647 PM MST Sat May 6 2017 ...RED FLAG WARNING WILL EXPIRE AT 7 PM MST THIS EVENING FOR STRONG GUSTY WINDS, LOW RELATIVE HUMIDITY, AND HIGH FIRE DANGER... Although breezy south to southwest winds will persist into the late evening, fire weather conditions have fallen below critical levels. Therefore, the Rad Flag Warning will be allowed to expire at 7 PM MST. $$ 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 |
|---|---|---|---|---|
| May 5, 1:09 PM MST | Wind Advisory | TWC | Cochise, Graham, Pima, Pinal, Santa Cruz | 30 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.