Alert archive / Arizona / Red Flag Warnings in 2021
Red Flag Warning 8, NWS Flagstaff, AZ
NWS Flagstaff, AZ issued this red flag warning at May 1, 2021, 12:48 PM MST for Apache County, Coconino County, Navajo County, Arizona. It took effect at May 2, 2021, 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 1, 2021, 12:48 PM MST (19:48 UTC)
- In effect from
- May 2, 2021, 10:00 AM MST
- Expired
- May 2, 2021, 7:00 PM MST
- In force
- 9 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 19:53 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, 7.8 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
- 2983 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- 60 m²/s²
- 0-3 km storm-relative helicity
- 34 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
201 WWUS85 KFGZ 011948 RFWFGZ URGENT - FIRE WEATHER MESSAGE National Weather Service Flagstaff AZ 1248 PM MST Sat May 1 2021 AZZ113-114-116-117-020400- /O.UPG.KFGZ.FW.A.0007.210502T1700Z-210503T0200Z/ /O.NEW.KFGZ.FW.W.0008.210502T1700Z-210503T0200Z/ Little Colorado River Valley in Navajo County (Fire Weather Zone 113)- Little Colorado River Valley in Apache County (Fire Weather Zone 114)-Eastern Mogollon Rim (Fire Weather Zone 116)- White Mountains (Fire Weather Zone 117)- 1248 PM MST Sat May 1 2021 ...RED FLAG WARNING IN EFFECT FROM 10 AM TO 7 PM MST SUNDAY DUE TO STRONG WINDS AND LOW RELATIVE HUMIDITY FOR EAST CENTRAL ARIZONA... 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 10 AM to 7 PM MST Sunday. The Fire Weather Watch is no longer in effect. * AFFECTED AREA...Locations near Alpine, Eagar-Springerville, Forest Lakes, Heber-Overgaard, Holbrook, Pinetop-Lakeside, Saint Johns, Show Low, Snowflake-Taylor, Whiteriver and Winslow. This includes portions of the Apache-Sitgreaves National Forest, Coconino National Forest and Tonto National Forest. * WINDS...Southwest 20 to 25 mph with gusts up to 45 mph. * RELATIVE HUMIDITY...As low as 8 percent. * IMPACTS...Any fires that start will 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. && $$ For more information from the National Weather Service visit http://weather.gov/flagstaff
4 follow-up statements
485 WWUS85 KFGZ 020158 RFWFGZ URGENT - FIRE WEATHER MESSAGE National Weather Service Flagstaff AZ 658 PM MST Sat May 1 2021 AZZ113-114-116-117-030200- /O.CON.KFGZ.FW.W.0008.210502T1700Z-210503T0200Z/ Little Colorado River Valley in Navajo County (Fire Weather Zone 113)- Little Colorado River Valley in Apache County (Fire Weather Zone 114)-Eastern Mogollon Rim (Fire Weather Zone 116)- White Mountains (Fire Weather Zone 117)- 658 PM MST Sat May 1 2021 ...RED FLAG WARNING REMAINS IN EFFECT FROM 10 AM TO 7 PM MST SUNDAY FOR EAST CENTRAL ARIZONA... * AFFECTED AREA...Locations near Alpine, Eagar-Springerville, Forest Lakes, Heber-Overgaard, Holbrook, Pinetop-Lakeside, Saint Johns, Show Low, Snowflake-Taylor, Whiteriver and Winslow. This includes portions of the Apache-Sitgreaves National Forest, Coconino National Forest and Tonto National Forest. * WINDS...Southwest 20 to 25 mph with gusts up to 45 mph. * RELATIVE HUMIDITY...As low as 8 percent. * IMPACTS...Any fires that start will have the potential to spread rapidly. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring or are imminent. A combination of strong winds and low relative humidities can contribute to extreme fire behavior. Please notify field crews of this red flag warning. && $$ For more information from the National Weather Service visit http://weather.gov/flagstaff
340 WWUS85 KFGZ 021223 RFWFGZ URGENT - FIRE WEATHER MESSAGE National Weather Service Flagstaff AZ 523 AM MST Sun May 2 2021 AZZ113-114-116-117-030200- /O.CON.KFGZ.FW.W.0008.210502T1700Z-210503T0200Z/ Little Colorado River Valley in Navajo County (Fire Weather Zone 113)- Little Colorado River Valley in Apache County (Fire Weather Zone 114)-Eastern Mogollon Rim (Fire Weather Zone 116)- White Mountains (Fire Weather Zone 117)- 523 AM MST Sun May 2 2021 ...RED FLAG WARNING REMAINS IN EFFECT FROM 10 AM THIS MORNING TO 7 PM MST THIS EVENING FOR EAST CENTRAL ARIZONA... * AFFECTED AREA...Locations near Alpine, Eagar-Springerville, Forest Lakes, Heber-Overgaard, Holbrook, Pinetop-Lakeside, Saint Johns, Show Low, Snowflake-Taylor, Whiteriver and Winslow. This includes portions of the Apache-Sitgreaves National Forest, Coconino National Forest and Tonto National Forest. * WINDS...Southwest 15 to 25 MPH with gusts up to 50 MPH. * RELATIVE HUMIDITY...As low as 7 percent. * IMPACTS...Any fires that start will 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. && $$ For more information from the National Weather Service visit http://weather.gov/flagstaff
128 WWUS85 KFGZ 021732 RFWFGZ URGENT - FIRE WEATHER MESSAGE National Weather Service Flagstaff AZ 1032 AM MST Sun May 2 2021 AZZ113-114-116-117-030200- /O.CON.KFGZ.FW.W.0008.000000T0000Z-210503T0200Z/ Little Colorado River Valley in Navajo County (Fire Weather Zone 113)- Little Colorado River Valley in Apache County (Fire Weather Zone 114)-Eastern Mogollon Rim (Fire Weather Zone 116)- White Mountains (Fire Weather Zone 117)- 1032 AM MST Sun May 2 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 PM MST THIS EVENING FOR EAST-CENTRAL ARIZONA... * AFFECTED AREA...Locations near Alpine, Eagar-Springerville, Forest Lakes, Heber-Overgaard, Holbrook, Pinetop-Lakeside, Saint Johns, Show Low, Snowflake-Taylor, Whiteriver and Winslow. This includes portions of the Apache-Sitgreaves National Forest, Coconino National Forest and Tonto National Forest. * WINDS...Southwest 15 to 25 mph with gusts up to 50 mph. * RELATIVE HUMIDITY...As low as 7 percent. * IMPACTS...Any fires that start will have the potential to spread rapidly. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring or are imminent. A combination of strong winds and low relative humidities can contribute to extreme fire behavior. Please notify field crews of this Red Flag Warning. && $$ For more information from the National Weather Service visit http://weather.gov/flagstaff
952 WWUS85 KFGZ 030155 RFWFGZ URGENT - FIRE WEATHER MESSAGE National Weather Service Flagstaff AZ 655 PM MST Sun May 2 2021 AZZ113-114-116-117-030300- /O.EXP.KFGZ.FW.W.0008.000000T0000Z-210503T0200Z/ Little Colorado River Valley in Navajo County (Fire Weather Zone 113)- Little Colorado River Valley in Apache County (Fire Weather Zone 114)-Eastern Mogollon Rim (Fire Weather Zone 116)- White Mountains (Fire Weather Zone 117)- 655 PM MST Sun May 2 2021 ...RED FLAG WARNING WILL EXPIRE AT 7 PM MST THIS EVENING FOR EAST-CENTRAL ARIZONA... Although breezy conditions will persist through late tonight, wind speeds have fallen below warning critera and the Red Flag Warning will be allowed to expire at 7 PM MST. $$ For more information from the National Weather Service visit http://weather.gov/flagstaff
The office that day
Everything else NWS Flagstaff, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 1, 2:47 AM MST | Fire Weather Watch | FGZ | Apache, Coconino, Navajo | 10 hr |
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.