Alert archive / Arizona / Red Flag Warnings in 2018
Red Flag Warning 9, NWS Tucson, AZ
NWS Tucson, AZ issued this red flag warning at Apr 16, 2018, 2:13 PM MST for 6 counties in Arizona. It took effect at Apr 17, 2018, 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
- Apr 16, 2018, 2:13 PM MST (21:13 UTC)
- In effect from
- Apr 17, 2018, 10:00 AM MST
- Expired
- Apr 17, 2018, 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 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, 9.2 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
- 4791 m above ground
- 0-6 km bulk shear
- 45 kt
- 0-1 km storm-relative helicity
- 92 m²/s²
- 0-3 km storm-relative helicity
- 143 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
272 WWUS85 KTWC 162113 RFWTWC URGENT - FIRE WEATHER MESSAGE National Weather Service Tucson AZ 213 PM MST Mon Apr 16 2018 AZZ151>153-171200- /O.UPG.KTWC.FW.A.0009.180417T1700Z-180418T0200Z/ /O.NEW.KTWC.FW.W.0009.180417T1700Z-180418T0200Z/ /O.CON.KTWC.FW.W.0008.000000T0000Z-180417T0300Z/ 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- Arizona Fire Weather Zone 153 Northern Graham County-Northern Greenlee County- White and Gila Mountains-Apache Sitgreaves NF-SDC- 213 PM MST Mon Apr 16 2018 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MST THIS EVENING FOR STRONG AND GUSTY WINDS, LOW HUMIDITY AND A HIGH TO VERY HIGH FIRE DANGER FOR FIRE WEATHER ZONES 151, 152, AND 153... ...RED FLAG WARNING IN EFFECT FROM 10 AM TO 7 PM MST TUESDAY FOR STRONG AND GUSTY WINDS, LOW HUMIDITY AND A HIGH TO VERY HIGH FIRE DANGER FOR FIRE WEATHER ZONES 152, 153 AND PART OF 151... The National Weather Service in Tucson has issued a Red Flag Warning, which is in effect from 10 AM to 7 PM MST Tuesday. The Fire Weather Watch is no longer in effect. * AFFECTED AREA...Tuesday's Red Flag Warning affects all of zone 153, zone 152 east and south of Mt. Graham and zone 151 southeast of Sonoita. * TIMING...The current Red Flag Warning is in effect until 8 pm MST this evening. Tuesday's Red Flag Warning is in effect from 10 am MST until 7 pm MST. * WINDS...Sustained southwest 20-foot winds of 15 to 30 mph with gusts to 40 mph. * RELATIVE HUMIDITY...Minimum humidity values will range from 7 to 12 percent. * 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. && $$ AZZ150-170300- /O.CON.KTWC.FW.W.0008.000000T0000Z-180417T0300Z/ Arizona Fire Weather Zone 150 Western Pima County-South Central Pinal County- Tohono O'Odham Nation-TDC- 213 PM MST Mon Apr 16 2018 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MST THIS EVENING FOR STRONG AND GUSTY WINDS, LOW HUMIDITY AND A HIGH TO VERY HIGH FIRE DANGER FOR FIRE WEATHER ZONE 150... * AFFECTED AREA...Fire Weather Zone 150. * TIMING...Until 8 pm MST today. * WINDS...Sustained southwest 20-foot winds of 15 to 25 mph with gusts to 35 mph. * RELATIVE HUMIDITY...Minimum humidity values will range from 3 to 8 percent. * IMPACTS...Any fires that develop or are ongoing will have the potential to spread rapidly. * FOR A DETAILED VIEW OF THE HAZARD AREA...Visit weather.gov/Tucson and click on the Detailed Hazards Icon. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now...or are expected to develop. A combination of strong winds...low relative humidity...and dry vegetation will create the potential for rapid and erratic fire growth. Please advise the appropriate officials or fire crews in the field of the Red Flag Warning for portions of Southeast Arizona. && $$ Cerniglia Visit us on Facebook...Twitter...YouTube...and at weather.gov/Tucson
4 follow-up statements
391 WWUS85 KTWC 170255 RFWTWC URGENT - FIRE WEATHER MESSAGE National Weather Service Tucson AZ 755 PM MST Mon Apr 16 2018 AZZ151>153-171400- /O.EXP.KTWC.FW.W.0008.000000T0000Z-180417T0300Z/ /O.CON.KTWC.FW.W.0009.180417T1700Z-180418T0200Z/ 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- Arizona Fire Weather Zone 153 Northern Graham County-Northern Greenlee County- White and Gila Mountains-Apache Sitgreaves NF-SDC- 755 PM MST Mon Apr 16 2018 ...RED FLAG WARNING WILL EXPIRE AT 8 PM MST THIS EVENING FOR STRONG AND GUSTY WINDS, LOW HUMIDITY AND A HIGH TO VERY HIGH FIRE DANGER FOR FIRE WEATHER ZONES 151, 152, AND 153... ...RED FLAG WARNING IN EFFECT FROM 10 AM TO 7 PM MST TUESDAY FOR STRONG AND GUSTY WINDS, LOW HUMIDITY AND A HIGH TO VERY HIGH FIRE DANGER FOR FIRE WEATHER ZONES 152, 153 AND PART OF 151... * AFFECTED AREA...Tuesday's Red Flag Warning affects all of zone 153, zone 152 east and south of Mt. Graham and zone 151 southeast of Sonoita. * TIMING...Tuesday's Red Flag Warning is in effect from 10 am MST until 7 pm MST. * WINDS...Sustained southwest 20-foot winds of 15 to 30 mph with gusts to 40 mph. * RELATIVE HUMIDITY...Minimum humidity values will range from 6 to 10 percent. * 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. && $$ AZZ150-170400- /O.EXP.KTWC.FW.W.0008.000000T0000Z-180417T0300Z/ Arizona Fire Weather Zone 150 Western Pima County-South Central Pinal County- Tohono O'Odham Nation-TDC- 755 PM MST Mon Apr 16 2018 ...RED FLAG WARNING WILL EXPIRE AT 8 PM MST THIS EVENING FOR STRONG AND GUSTY WINDS, LOW HUMIDITY AND A HIGH TO VERY HIGH FIRE DANGER FOR FIRE WEATHER ZONE 150... Wind speeds continue to diminish this evening. Therefore, the Red Flag Warning was allowed to expire at 8 PM MST. $$ Visit us on Facebook...Twitter...YouTube...and at weather.gov/Tucson
962 WWUS85 KTWC 170948 RFWTWC URGENT - FIRE WEATHER MESSAGE National Weather Service Tucson AZ 248 AM MST Tue Apr 17 2018 AZZ151>153-180200- /O.NEW.KTWC.FW.A.0010.180419T1800Z-180420T0300Z/ /O.CON.KTWC.FW.W.0009.180417T1700Z-180418T0200Z/ 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- Arizona Fire Weather Zone 153 Northern Graham County-Northern Greenlee County- White and Gila Mountains-Apache Sitgreaves NF-SDC- 248 AM MST Tue Apr 17 2018 ...RED FLAG WARNING REMAINS IN EFFECT FROM 10 AM THIS MORNING TO 7 PM MST THIS EVENING FOR STRONG AND GUSTY WINDS, LOW HUMIDITY, AND A HIGH TO VERY HIGH FIRE DANGER FOR FIRE WEATHER ZONES 152, 153, AND PART OF 151... ...FIRE WEATHER WATCH IN EFFECT FROM THURSDAY MORNING THROUGH THURSDAY EVENING FOR STRONG AND GUSTY WINDS, LOW HUMIDITY, AND A HIGH TO VERY HIGH FIRE DANGER FOR FIRE WEATHER ZONES 150, 151, 152, AND 153... The National Weather Service in Tucson has issued a Fire Weather Watch, which is in effect from Thursday morning through Thursday evening. * AFFECTED AREA...Today's Red Flag Warning affects all of zone 153, zone 152 east and south of Mt. Graham and zone 151 southeast of Sonoita. * TIMING...Today's Red Flag Warning is in effect from 10 am MST until 7 pm MST. * WINDS...Sustained southwest 20-foot winds of 15 to 30 mph with gusts to 40 mph. * RELATIVE HUMIDITY...Minimum humidity values will range from 6 to 10 percent. * 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. A Fire Weather Watch means that critical fire weather conditions are forecast to occur. Listen for later forecasts and possible Red Flag Warnings. Please advise the appropriate officials or fire crews in the field of the Fire Weather Watch for portions of Southeast Arizona. && $$ AZZ150-180200- /O.NEW.KTWC.FW.A.0010.180419T1800Z-180420T0300Z/ Arizona Fire Weather Zone 150 Western Pima County-South Central Pinal County- Tohono O'Odham Nation-TDC- 248 AM MST Tue Apr 17 2018 ...FIRE WEATHER WATCH IN EFFECT FROM THURSDAY MORNING THROUGH THURSDAY EVENING FOR STRONG AND GUSTY WINDS, LOW HUMIDITY, AND A HIGH TO VERY HIGH FIRE DANGER FOR FIRE WEATHER ZONES 150, 151, 152, AND 153... The National Weather Service in Tucson has issued a Fire Weather Watch, which is in effect from Thursday morning through Thursday evening. * AFFECTED AREA...All of southeast Arizona. * TIMING...11 AM MST Thursday morning until 8 PM MST Thursday evening. * WINDS...Sustained 20-foot winds of 20 to 30 mph with gusts of 40-45 mph possible. The strongest winds will occur in the mountains. * RELATIVE HUMIDITY...Minimum relative humidities will range from 4 to 10 percent. * IMPACTS...Any fires that develop or are ongoing will have the potential to spread rapidly. * FOR A DETAILED VIEW OF THE HAZARD AREA...Visit weather.gov/Tucson and click on the Detailed Hazards Icon. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Fire Weather Watch means that critical fire weather conditions are forecast to occur. Listen for later forecasts and possible Red Flag Warnings. Please advise the appropriate officials or fire crews in the field of the Fire Weather Watch for portions of Southeast Arizona. && $$ Visit us on Facebook...Twitter...YouTube...and at weather.gov/Tucson
548 WWUS85 KTWC 172027 RFWTWC URGENT - FIRE WEATHER MESSAGE National Weather Service Tucson AZ Issued by National Weather Service PHOENIX AZ 127 PM MST Tue Apr 17 2018 AZZ151>153-180600- /O.CON.KTWC.FW.W.0009.000000T0000Z-180418T0200Z/ /O.CON.KTWC.FW.A.0010.180419T1800Z-180420T0300Z/ 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- Arizona Fire Weather Zone 153 Northern Graham County-Northern Greenlee County- White and Gila Mountains-Apache Sitgreaves NF-SDC- 127 PM MST Tue Apr 17 2018 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 PM MST THIS EVENING FOR STRONG AND GUSTY WINDS, LOW HUMIDITY, AND A HIGH TO VERY HIGH FIRE DANGER FOR FIRE WEATHER ZONES 153, AND PARTS OF ZONES 151 AND 152... ...FIRE WEATHER WATCH REMAINS IN EFFECT FROM THURSDAY MORNING THROUGH THURSDAY EVENING FOR STRONG AND GUSTY WINDS, LOW HUMIDITY, AND A HIGH TO VERY HIGH FIRE DANGER FOR FIRE WEATHER ZONES 150, 151, 152, AND 153... The National Weather Service in Tucson has issued a Fire Weather Watch, which is in effect from Thursday morning through Thursday evening. * AFFECTED AREA...Today's Red Flag Warning affects zone 153, zone 152 east and south of Mt. Graham, and zone 151 southeast of Sonoita. * TIMING...Today's Red Flag Warning is in effect until 7 pm MST. * WINDS...Sustained southwest 20-foot winds of 15 to 30 mph with gusts UP to 40 mph. * RELATIVE HUMIDITY...Minimum humidity values will range from 5 to 10 percent. * 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. A Fire Weather Watch means that critical fire weather conditions are forecast to occur. Listen for later forecasts and possible Red Flag Warnings. Please advise the appropriate officials or fire crews in the field of the Fire Weather Watch for portions of Southeast Arizona. && $$ AZZ150-180600- /O.CON.KTWC.FW.A.0010.180419T1800Z-180420T0300Z/ Arizona Fire Weather Zone 150 Western Pima County-South Central Pinal County- Tohono O'Odham Nation-TDC- 127 PM MST Tue Apr 17 2018 ...FIRE WEATHER WATCH REMAINS IN EFFECT FROM THURSDAY MORNING THROUGH THURSDAY EVENING FOR STRONG AND GUSTY WINDS, LOW HUMIDITY, AND A HIGH TO VERY HIGH FIRE DANGER FOR FIRE WEATHER ZONES 150, 151, 152, AND 153... * AFFECTED AREA...All of southeast Arizona. * TIMING...11 AM MST Thursday morning until 8 PM MST Thursday evening. * WINDS...Sustained 20-foot winds of 20 to 30 mph with gusts of 40 TO 45 mph possible. The strongest winds will occur in the mountains. * RELATIVE HUMIDITY...Minimum relative humidities will range from 4 to 10 percent. * IMPACTS...Any fires that develop or are ongoing will have the potential to spread rapidly. * FOR A DETAILED VIEW OF THE HAZARD AREA...Visit weather.gov/Tucson and click on the Detailed Hazards Icon. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Fire Weather Watch means that critical fire weather conditions are forecast to occur. Listen for later forecasts and possible Red Flag Warnings. Please advise the appropriate officials or fire crews in the field of the Fire Weather Watch for portions of Southeast Arizona. && $$ Visit us on Facebook...Twitter...YouTube...and at weather.gov/Tucson
175 WWUS85 KTWC 180150 RFWTWC URGENT - FIRE WEATHER MESSAGE National Weather Service Tucson AZ 650 PM MST Tue Apr 17 2018 AZZ151>153-181100- /O.EXP.KTWC.FW.W.0009.000000T0000Z-180418T0200Z/ /O.CON.KTWC.FW.A.0010.180419T1800Z-180420T0300Z/ 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- Arizona Fire Weather Zone 153 Northern Graham County-Northern Greenlee County- White and Gila Mountains-Apache Sitgreaves NF-SDC- 650 PM MST Tue Apr 17 2018 ...FIRE WEATHER WATCH REMAINS IN EFFECT FROM THURSDAY MORNING THROUGH THURSDAY EVENING FOR STRONG AND GUSTY WINDS, LOW HUMIDITY, AND A HIGH TO VERY HIGH FIRE DANGER FOR FIRE WEATHER ZONES 151, 152, AND 153... ...RED FLAG WARNING WILL EXPIRE AT 7 PM MST THIS EVENING FOR FIRE WEATHER ZONES 151, 152, AND 153... The National Weather Service in Tucson has issued a Fire Weather Watch, which is in effect from Thursday morning through Thursday evening. * AFFECTED AREA...Fire weather zones 151, 152, and 153. * TIMING...Thursday. * WINDS...Sustained southwest 20-foot winds of 15 to 30 mph with gusts UP to 40 mph. * RELATIVE HUMIDITY...Minimum humidity values will range from 5 to 10 percent. * 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 Fire Weather Watch means that critical fire weather conditions are forecast to occur. Listen for later forecasts and possible Red Flag Warnings. Please advise the appropriate officials or fire crews in the field of the Fire Weather Watch for portions of Southeast Arizona. && $$ AZZ150-181100- /O.CON.KTWC.FW.A.0010.180419T1800Z-180420T0300Z/ Arizona Fire Weather Zone 150 Western Pima County-South Central Pinal County- Tohono O'Odham Nation-TDC- 650 PM MST Tue Apr 17 2018 ...FIRE WEATHER WATCH REMAINS IN EFFECT FROM THURSDAY MORNING THROUGH THURSDAY EVENING FOR STRONG AND GUSTY WINDS, LOW HUMIDITY, AND A HIGH TO VERY HIGH FIRE DANGER FOR FIRE WEATHER ZONE 150... * AFFECTED AREA...Fire weather zone 150. * TIMING...11 AM MST Thursday morning until 8 PM MST Thursday evening. * WINDS...Sustained 20-foot winds of 20 to 30 mph with gusts of 40 TO 45 mph possible. The strongest winds will occur in the mountains. * RELATIVE HUMIDITY...Minimum relative humidities will range from 4 to 10 percent. * IMPACTS...Any fires that develop or are ongoing will have the potential to spread rapidly. * FOR A DETAILED VIEW OF THE HAZARD AREA...Visit weather.gov/Tucson and click on the Detailed Hazards Icon. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Fire Weather Watch means that critical fire weather conditions are forecast to occur. Listen for later forecasts and possible Red Flag Warnings. Please advise the appropriate officials or fire crews in the field of the Fire Weather Watch for portions of Southeast Arizona. && $$ Visit us on Facebook...Twitter...YouTube...and at weather.gov/Tucson
Nearby
Red Flag Warnings in Arizona, 2018Every red flag warning in 2018
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.