Alert archive / Arizona / Red Flag Warnings in 2021
Red Flag Warning 12, NWS Flagstaff, AZ
NWS Flagstaff, AZ issued this red flag warning at Jun 9, 2021, 1:16 PM MST for Apache County, Coconino County, Navajo County, Arizona. It took effect at Jun 10, 2021, 11:00 AM MST. It was in force for 7 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
- Jun 9, 2021, 1:16 PM MST (20:16 UTC)
- In effect from
- Jun 10, 2021, 11:00 AM MST
- Expired
- Jun 10, 2021, 6:00 PM MST
- In force
- 7 hr
- Issued by
- NWS Flagstaff, AZ
Counties Apache County, AZ, Coconino County, AZ, Navajo County, AZ
The radar
The Flagstaff radar (KFSX), 124 km from the middle of the area, began a volume at 20:19 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
Flgstf/Belemont, AZ (KFGZ), launched 12:00Z, 8.3 hours before the alert went out and 121 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
- 3825 m above ground
- 0-6 km bulk shear
- 43 kt
- 0-1 km storm-relative helicity
- 98 m²/s²
- 0-3 km storm-relative helicity
- 70 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
681 WWUS85 KFGZ 092016 RFWFGZ URGENT - FIRE WEATHER MESSAGE National Weather Service Flagstaff AZ 116 PM MST Wed Jun 9 2021 AZZ104-105-109-110-139-101200- /O.NEW.KFGZ.FW.W.0012.210610T1800Z-210611T0100Z/ Kaibab Plateau (Fire Weather Zone 104)- Marble and Glen Canyons (Fire Weather Zone 105)- Northeast Plateau And Mesas Hwy 264 Northward (Fire Weather Zone 109)-Chinle Valley (Fire Weather Zone 110)- Black Mesa Area (Fire Weather Zone 139)- 116 PM MST Wed Jun 9 2021 ...RED FLAG WARNING IN EFFECT FROM 11 AM TO 6 PM MST (12 PM TO 7 PM NAVAJO NATION) THURSDAY DUE TO STRONG WINDS AND LOW RELATIVE HUMIDITY FOR FAR NORTHERN ARIZONA AND THE NAVAJO NATION... The National Weather Service in Flagstaff has issued a Red Flag Warning due to strong winds and low relative humidity, which is in effect from 11 AM to 6 PM MST (12 PM to 7 PM Navajo Nation) on Thursday. * AFFECTED AREA...Locations near Chinle, Fredonia, Jacob Lake, Kayenta, Page and Shonto. This includes portions of the Kaibab National Forest. * WINDS...Southwest 15 to 25 mph with gusts up to 40 mph. * RELATIVE HUMIDITY...As low as 5 percent. * IMPACTS...Any fires that do start have the potential to spread rapidly. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring or are imminent. A combination of strong winds and low relative humidities can contribute to extreme fire behavior. Please notify field crews of this red flag warning. && $$ For more information from the National Weather Service visit http://weather.gov/flagstaff
3 follow-up statements
646 WWUS85 KFGZ 101005 RFWFGZ URGENT - FIRE WEATHER MESSAGE National Weather Service Flagstaff AZ 305 AM MST Thu Jun 10 2021 AZZ106-107-101815- /O.EXA.KFGZ.FW.W.0012.210610T1800Z-210611T0100Z/ Grand Canyon Country (Fire Weather Zone 106)- Coconino Plateau (Fire Weather Zone 107)- 305 AM MST Thu Jun 10 2021 ...RED FLAG WARNING IN EFFECT FROM 11 AM THIS MORNING TO 6 PM MST THIS EVENING DUE TO STRONG WINDS AND LOW RELATIVE HUMIDITY FOR THE COCONINO PLATEAU AND THE GRAND CANYON... The National Weather Service in Flagstaff has issued a Red Flag Warning due to strong winds and low relative humidity, which is in effect from 11 AM this morning to 6 PM MST this evening. * AFFECTED AREA...Locations near Grand Canyon, North Rim and Valle. This includes portions of the Coconino National Forest and Kaibab National Forest. * WINDS...Southwest 10 to 20 mph with gusts up to 35 mph. * RELATIVE HUMIDITY...As low as 5 percent. * IMPACTS...Any fires that do start have the potential to spread rapidly. $$ AZZ104-105-109-110-139-101815- /O.CON.KFGZ.FW.W.0012.210610T1800Z-210611T0100Z/ Kaibab Plateau (Fire Weather Zone 104)- Marble and Glen Canyons (Fire Weather Zone 105)- Northeast Plateau And Mesas Hwy 264 Northward (Fire Weather Zone 109)-Chinle Valley (Fire Weather Zone 110)- Black Mesa Area (Fire Weather Zone 139)- 305 AM MST Thu Jun 10 2021 ...RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM THIS MORNING TO 6 PM MST THIS EVENING FOR FAR NORTHERN ARIZONA AND THE NAVAJO NATION... * AFFECTED AREA...Locations near Chinle, Fredonia, Jacob Lake, Kayenta, Page and Shonto. This includes portions of the Kaibab National Forest. * WINDS...Southwest 15 to 25 mph with gusts up to 40 mph. * RELATIVE HUMIDITY...As low as 6 percent. * IMPACTS...Any fires that do start have the potential to spread rapidly. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring or are imminent. A combination of strong winds and low relative humidities can contribute to extreme fire behavior. Please notify field crews of this red flag warning. && $$ For more information from the National Weather Service visit http://weather.gov/flagstaff
543 WWUS85 KFGZ 102126 RFWFGZ URGENT - FIRE WEATHER MESSAGE National Weather Service Flagstaff AZ 226 PM MST Thu Jun 10 2021 AZZ104>107-109-110-139-110100- /O.CON.KFGZ.FW.W.0012.000000T0000Z-210611T0100Z/ Kaibab Plateau (Fire Weather Zone 104)- Marble and Glen Canyons (Fire Weather Zone 105)- Grand Canyon Country (Fire Weather Zone 106)- Coconino Plateau (Fire Weather Zone 107)- Northeast Plateau And Mesas Hwy 264 Northward (Fire Weather Zone 109)-Chinle Valley (Fire Weather Zone 110)- Black Mesa Area (Fire Weather Zone 139)- 226 PM MST Thu Jun 10 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM MST THIS EVENING FOR FAR NORTHERN ARIZONA AND THE NAVAJO NATION... * AFFECTED AREA...Locations near Chinle, Fredonia, Grand Canyon, Jacob Lake, Kayenta, North Rim, Page, Shonto and Valle. This includes portions of the Coconino National Forest and Kaibab National Forest. * WINDS...Southwest 15 to 25 mph with gusts up to 40 mph. * RELATIVE HUMIDITY...As low as 5 percent. * IMPACTS...Any fires that do start have the potential to spread rapidly. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring or are imminent. A combination of strong winds and low relative humidities can contribute to extreme fire behavior. Please notify field crews of this red flag warning. && $$ For more information from the National Weather Service visit http://weather.gov/flagstaff
594 WWUS85 KFGZ 110100 RFWFGZ URGENT - FIRE WEATHER MESSAGE National Weather Service Flagstaff AZ 600 PM MST Thu Jun 10 2021 AZZ104>107-109-110-139-110200- /O.EXP.KFGZ.FW.W.0012.000000T0000Z-210611T0100Z/ Kaibab Plateau (Fire Weather Zone 104)- Marble and Glen Canyons (Fire Weather Zone 105)- Grand Canyon Country (Fire Weather Zone 106)- Coconino Plateau (Fire Weather Zone 107)- Northeast Plateau And Mesas Hwy 264 Northward (Fire Weather Zone 109)-Chinle Valley (Fire Weather Zone 110)- Black Mesa Area (Fire Weather Zone 139)- 600 PM MST Thu Jun 10 2021 ...RED FLAG WARNING WILL EXPIRE AT 6 PM MST THIS EVENING FOR FAR NORTHERN ARIZONA AND THE NAVAJO NATION... Wind speeds will continue to decrease through the night dropping below critical thresholds. The Red Flag Warning will expire at 6 PM MST / 7 PM Navajo Nation Time. $$ For more information from the National Weather Service visit http://weather.gov/flagstaff
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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.