Alert archive / Arizona / Red Flag Warnings in 2021
Red Flag Warning 1, NWS Flagstaff, AZ
NWS Flagstaff, AZ issued this red flag warning at Mar 2, 2021, 2:08 PM MST for Yavapai County, Arizona. It took effect at Mar 3, 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
- Mar 2, 2021, 2:08 PM MST (21:08 UTC)
- In effect from
- Mar 3, 2021, 11:00 AM MST
- Expired
- Mar 3, 2021, 6:00 PM MST
- In force
- 7 hr
- Issued by
- NWS Flagstaff, AZ
County Yavapai County, AZ
The radar
The Flagstaff radar (KFSX), 124 km from the middle of the area, began a volume at 21:10 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, 9.1 hours before the alert went out and 98 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
- 3301 m above ground
- 0-6 km bulk shear
- 0 kt
- 0-1 km storm-relative helicity
- 0 m²/s²
- 0-3 km storm-relative helicity
- 0 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
853 WWUS85 KFGZ 022108 RFWFGZ URGENT - FIRE WEATHER MESSAGE National Weather Service Flagstaff AZ 208 PM MST Tue Mar 2 2021 AZZ137-031800- /O.NEW.KFGZ.FW.W.0001.210303T1800Z-210304T0100Z/ Yavapai County Valleys and Basins (Fire Weather Zone 137)- 208 PM MST Tue Mar 2 2021 ...RED FLAG WARNING IN EFFECT FROM 11 AM TO 6 PM MST WEDNESDAY DUE TO STRONG WINDS AND LOW RELATIVE HUMIDITY FOR THE VALLEYS OF YAVAPAI COUNTY... 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 Wednesday. * AFFECTED AREA...Locations near Camp Verde, Chino Valley, Congress, Cottonwood and Paulden. This includes portions of the Coconino National Forest, Prescott National Forest and Tonto National Forest. * WINDS...South 15 to 20 mph with gusts from 35 to 40 mph. * RELATIVE HUMIDITY...As low as 12 percent. * IMPACTS...Any fires that develop will 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. && $$ For more information from the National Weather Service visit http://weather.gov/flagstaff
2 follow-up statements
023 WWUS85 KFGZ 030916 RFWFGZ URGENT - FIRE WEATHER MESSAGE National Weather Service Flagstaff AZ 216 AM MST Wed Mar 3 2021 AZZ137-040100- /O.CON.KFGZ.FW.W.0001.210303T1800Z-210304T0100Z/ Yavapai County Valleys and Basins (Fire Weather Zone 137)- 216 AM MST Wed Mar 3 2021 ...RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM THIS MORNING TO 6 PM MST THIS EVENING DUE TO STRONG WINDS AND LOW RELATIVE HUMIDITY FOR THE VALLEYS OF YAVAPAI COUNTY... * AFFECTED AREA...Locations near Camp Verde, Chino Valley, Congress, Cottonwood and Paulden. This includes portions of the Coconino National Forest, Prescott National Forest and Tonto National Forest. * WINDS...South 20 to 25 mph with gusts 35 to 45 mph. * RELATIVE HUMIDITY...As low as 10 percent. * IMPACTS...Any fires that develop will spread rapidly. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring or are imminent. A combination of strong winds and low relative humidities can contribute to extreme fire behavior. Please notify field crews of this red flag warning. && $$ For more information from the National Weather Service visit http://weather.gov/flagstaff
581 WWUS85 KFGZ 040056 RFWFGZ URGENT - FIRE WEATHER MESSAGE National Weather Service Flagstaff AZ 556 PM MST Wed Mar 3 2021 AZZ137-040200- /O.EXP.KFGZ.FW.W.0001.000000T0000Z-210304T0100Z/ Yavapai County Valleys and Basins (Fire Weather Zone 137)- 556 PM MST Wed Mar 3 2021 ...RED FLAG WARNING WILL EXPIRE AT 6 PM MST THIS EVENING FOR THE VALLEYS OF YAVAPAI COUNTY... Winds have begun to subside and relative humidity is rising. This trend is expected to continue after sunset as moisture moves into the area this evening. $$ 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 |
|---|---|---|---|---|
| Mar 2, 2:01 PM MST | Wind Advisory | FGZ | Coconino, Yavapai | 28 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.