Alert archive / Arizona / Red Flag Warnings in 2017

Red Flag Warning 2, NWS Flagstaff, AZ

April 22, 2017Apache County, Coconino County, Navajo County, Arizona

NWS Flagstaff, AZ issued this red flag warning at Apr 22, 2017, 2:37 PM MST for Apache County, Coconino County, Navajo County, Arizona. It took effect at Apr 23, 2017, 12:00 PM 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
Apr 22, 2017, 2:37 PM MST (21:37 UTC)
In effect from
Apr 23, 2017, 12:00 PM MST
Expired
Apr 23, 2017, 7:00 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 21:42 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, 9.6 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.

Skew-T log-pSkew-T log-p diagram, Flgstf/Belemont, AZ at 12:00Z on 2017-04-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Flgstf/Belemont, AZ at 12:00Z on 2017-04-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 107 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2912 m above ground
0-6 km bulk shear
42 kt
0-1 km storm-relative helicity
107 m²/s²
0-3 km storm-relative helicity
211 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

235 
WWUS85 KFGZ 222137
RFWFGZ

URGENT - FIRE WEATHER MESSAGE
National Weather Service Flagstaff AZ
237 PM MST Sat Apr 22 2017

AZZ109-111>116-139-140-231200-
/O.UPG.KFGZ.FW.A.0002.170423T1900Z-170424T0200Z/
/O.NEW.KFGZ.FW.W.0002.170423T1900Z-170424T0200Z/
/O.NEW.KFGZ.FW.A.0003.170424T1800Z-170425T0300Z/
Northeast Plateau And Mesas Hwy 264 Northward (Fire Weather Zone
109)-
Chuska Mountains and Defiance Plateau (Fire Weather Zone 111)-
Little Colorado River Valley in Coconino County (Fire Weather
Zone 112)-
Little Colorado River Valley in Navajo County (Fire Weather Zone
113)-
Little Colorado River Valley in Apache County (Fire Weather Zone
114)-Western Mogollon Rim (Fire Weather Zone 115)-
Eastern Mogollon Rim (Fire Weather Zone 116)-
Black Mesa Area (Fire Weather Zone 139)-
Northeast Plateaus and Mesas South of Hwy 264 (Fire Weather Zone
140)-
237 PM MST Sat Apr 22 2017

...RED FLAG WARNING IN EFFECT FROM NOON TO 7 PM MST SUNDAY DUE TO
STRONG WINDS AND LOW RELATIVE HUMIDITY... 
...FIRE WEATHER WATCH IN EFFECT FROM MONDAY MORNING THROUGH 
MONDAY EVENING DUE TO STRONG WINDS AND LOW RELATIVE HUMIDITY...

The National Weather Service in Flagstaff has issued a Red Flag
Warning, which is in effect from noon to 7 PM MST Sunday. A Fire 
Weather Watch has also been issued. This Fire Weather Watch is in 
effect from Monday morning through Monday evening. The Fire 
Weather Watch is no longer in effect. 

* AFFECTED AREAS...Most locations along and north of the Mogollon
  Rim.

* 20 FOOT WIND...Southwest 20 to 25 mph with gusts 30 to 40 mph. 

* RELATIVE HUMIDITY...7 to 15 percent.

* IMPACTS...Any fires that develop will likely spread rapidly. 
  Outdoor burning is not recommended.

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. A Fire Weather Watch means that critical fire weather 
conditions are possible. Listen for later forecasts and possible 
Red Flag Warnings.

Please notify field crews of this Red Flag Warning and Fire 
Weather Watch.

&&

$$

AZZ104-106-107-231200-
/O.UPG.KFGZ.FW.A.0002.170423T1900Z-170424T0200Z/
/O.NEW.KFGZ.FW.W.0002.170423T1900Z-170424T0200Z/
Kaibab Plateau (Fire Weather Zone 104)-
Grand Canyon Country (Fire Weather Zone 106)-
Coconino Plateau (Fire Weather Zone 107)-
237 PM MST Sat Apr 22 2017

...RED FLAG WARNING IN EFFECT FROM NOON TO 7 PM MST SUNDAY DUE
TO STRONG WINDS AND LOW RELATIVE HUMIDITY...

The National Weather Service in Flagstaff has issued a Red Flag
Warning, which is in effect from noon to 7 PM MST Sunday. The
Fire Weather Watch is no longer in effect. 

* AFFECTED AREAS...Kaibab Plateau, Grand Canyon Country,
  Coconino Plateau.

* 20 FOOT WIND...Southwest 20 to 25 mph with gusts 30 to 40 mph.

* RELATIVE HUMIDITY...8 to 13 percent.

* IMPACTS...Any fires that develop will likely spread rapidly. 
  Outdoor burning is not recommended.

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.

&&

$$

AZZ110-231200-
/O.NEW.KFGZ.FW.A.0003.170424T1800Z-170425T0300Z/
Chinle Valley (Fire Weather Zone 110)-
237 PM MST Sat Apr 22 2017

...FIRE WEATHER WATCH IN EFFECT FROM MONDAY MORNING THROUGH
MONDAY EVENING FOR DUE TO STRONG WINDS AND RELATIVE HUMIDITY...

The National Weather Service in Flagstaff has issued a Fire
Weather Watch, which is in effect from Monday morning through
Monday evening. 

* AFFECTED AREA...Chinle Valley.

* 20 FOOT WIND...Southwest 20 to 25 mph with gusts up to 
  35 mph.

* RELATIVE HUMIDITY...8 to 11 percent.

* IMPACTS...Any fires that develop will likely spread rapidly. 
Outdoor burning is not recommended.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Fire Weather Watch means that critical fire weather conditions
are possible. Listen for later forecasts and possible Red Flag 
Warnings.

Please notify field crews of this Fire Weather Watch.

&&

$$
3 follow-up statements
223 
WWUS85 KFGZ 231107
RFWFGZ

URGENT - FIRE WEATHER MESSAGE
National Weather Service Flagstaff AZ
407 AM MST Sun Apr 23 2017

AZZ109-111>116-139-140-240215-
/O.CON.KFGZ.FW.W.0002.170423T1900Z-170424T0200Z/
/O.CON.KFGZ.FW.A.0003.170424T1800Z-170425T0300Z/
Northeast Plateau And Mesas Hwy 264 Northward (Fire Weather Zone
109)-
Chuska Mountains and Defiance Plateau (Fire Weather Zone 111)-
Little Colorado River Valley in Coconino County (Fire Weather
Zone 112)-
Little Colorado River Valley in Navajo County (Fire Weather Zone
113)-
Little Colorado River Valley in Apache County (Fire Weather Zone
114)-Western Mogollon Rim (Fire Weather Zone 115)-
Eastern Mogollon Rim (Fire Weather Zone 116)-
Black Mesa Area (Fire Weather Zone 139)-
Northeast Plateaus and Mesas South of Hwy 264 (Fire Weather Zone
140)-
407 AM MST Sun Apr 23 2017

...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TODAY TO 7 PM MST
THIS EVENING...
...FIRE WEATHER WATCH REMAINS IN EFFECT FROM MONDAY MORNING
THROUGH MONDAY EVENING...

* AFFECTED AREAS...Most locations along and north of the 
  Mogollon Rim. 

* 20 FOOT WIND...Southwest 20 to 25 mph with gusts 30 to 40 mph.

* RELATIVE HUMIDITY...7 to 15 percent.

* IMPACTS...Any fires that develop will likely spread rapidly. 
  Outdoor burning is not recommended.

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. A Fire Weather Watch means that critical fire weather
conditions are possible. Listen for later forecasts and possible
Red Flag Warnings.

Please notify field crews of this Red Flag Warning and Fire
Weather Watch.

&&

$$

AZZ104-106-107-240200-
/O.CON.KFGZ.FW.W.0002.170423T1900Z-170424T0200Z/
Kaibab Plateau (Fire Weather Zone 104)-
Grand Canyon Country (Fire Weather Zone 106)-
Coconino Plateau (Fire Weather Zone 107)-
407 AM MST Sun Apr 23 2017

...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TODAY TO 7 PM MST
THIS EVENING...

* AFFECTED AREAS...Kaibab Plateau, Grand Canyon Country, 
  Coconino Plateau. 

* 20 FOOT WIND...Southwest 20 to 25 mph with gusts 30 to 40 mph.

* RELATIVE HUMIDITY...8 to 14 percent.

* IMPACTS...Any fires that develop will likely spread rapidly. 
  Outdoor burning is not recommended.

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.

&&

$$

AZZ110-240215-
/O.CON.KFGZ.FW.A.0003.170424T1800Z-170425T0300Z/
Chinle Valley (Fire Weather Zone 110)-
407 AM MST Sun Apr 23 2017

...FIRE WEATHER WATCH REMAINS IN EFFECT FROM MONDAY MORNING
THROUGH MONDAY EVENING FOR DUE TO STRONG WINDS AND RELATIVE
HUMIDITY...

* AFFECTED AREA...Chinle Valley.

* 20 FOOT WIND...Southwest 20 to 25 mph with gusts up to 35 mph.

* RELATIVE HUMIDITY...8 to 11 percent.

* IMPACTS...Any fires that develop will likely spread rapidly.
  Outdoor burning is not recommended.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Fire Weather Watch means that critical fire weather conditions
are possible. Listen for later forecasts and possible Red Flag
Warnings.

Please notify field crews of this Fire Weather Watch.

&&

$$
344 
WWUS85 KFGZ 232140
RFWFGZ

URGENT - FIRE WEATHER MESSAGE
National Weather Service Flagstaff AZ
240 PM MST Sun Apr 23 2017

AZZ115-240200-
/O.CAN.KFGZ.FW.A.0003.170424T1800Z-170425T0300Z/
/O.CON.KFGZ.FW.W.0002.000000T0000Z-170424T0200Z/
Western Mogollon Rim (Fire Weather Zone 115)-
240 PM MST Sun Apr 23 2017

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 PM MST THIS EVENING
FOR STRONG WINDS AND LOW RELATIVE HUMIDITY...
...FIRE WEATHER WATCH IS CANCELLED FOR MONDAY...

The National Weather Service in Flagstaff has cancelled the Fire
Weather Watch for Monday for the western Mogollon Rim. Red Flag
Warning continues until 7 PM MST this evening.

* AFFECTED AREA...Western Mogollon Rim.

* 20 FOOT WIND...Southwest 20 to 25 mph with gusts 35 to 45 mph
  through 7 PM this evening. Southwest 20 to 25 with gusts 30 to
  40 mph Monday afternoon.

* RELATIVE HUMIDITY...13 to 17 percent this afternoon. Minimum
  humidity Monday is forecast to be in the 16 to 20 percent range
  which is just above critical thresholds, therefore the Fire Weather
  Watch for Monday has been cancelled.

* IMPACTS...Any fires that develop will likely spread rapidly. 
  Outdoor burning is not recommended.

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.

&&

$$

AZZ109-111>114-116-139-140-241230-
/O.UPG.KFGZ.FW.A.0003.170424T1800Z-170425T0300Z/
/O.NEW.KFGZ.FW.W.0003.170424T1800Z-170425T0300Z/
/O.CON.KFGZ.FW.W.0002.000000T0000Z-170424T0200Z/
Northeast Plateau And Mesas Hwy 264 Northward (Fire Weather Zone
109)-
Chuska Mountains and Defiance Plateau (Fire Weather Zone 111)-
Little Colorado River Valley in Coconino County (Fire Weather
Zone 112)-
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)-
Black Mesa Area (Fire Weather Zone 139)-
Northeast Plateaus and Mesas South of Hwy 264 (Fire Weather Zone
140)-
240 PM MST Sun Apr 23 2017

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 PM MST THIS EVENING
FOR STRONG WINDS AND LOW RELATIVE HUMIDITY... 
...RED FLAG WARNING IN EFFECT FROM 11 AM TO 8 PM MST MONDAY FOR
STRONG WINDS AND LOW RELATIVE HUMIDITY ...

The National Weather Service in Flagstaff has issued a Red Flag
Warning, which is in effect from 11 AM to 8 PM MST Monday. The
Fire Weather Watch is no longer in effect. 

* AFFECTED AREAS...Most of northeast Arizona along and north of
  the eastern Mogollon Rim.

* 20 FOOT WIND...Southwest 20 to 25 mph with gusts 30 to 40 mph
  through early this evening. Southwest winds increasing again to
  20 to 30 mph with gusts 35 to 45 mph from late Monday morning 
  through Monday evening.

* RELATIVE HUMIDITY...8 to 15 percent.

* IMPACTS...Any fires that develop will likely spread rapidly. 
  Outdoor burning is not recommended.

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.

&&

$$

AZZ110-241230-
/O.UPG.KFGZ.FW.A.0003.170424T1800Z-170425T0300Z/
/O.NEW.KFGZ.FW.W.0003.170424T1800Z-170425T0300Z/
Chinle Valley (Fire Weather Zone 110)-
240 PM MST Sun Apr 23 2017

...RED FLAG WARNING IN EFFECT FROM 11 AM TO 8 PM MST MONDAY FOR
STRONG WINDS AND LOW RELATIVE HUMIDITY...

The National Weather Service in Flagstaff has issued a Red Flag
Warning, which is in effect from 11 AM to 8 PM MST Monday. The
Fire Weather Watch is no longer in effect. 

* AFFECTED AREA...Chinle Valley.

* 20 FOOT WIND...Southwest 20 to 25 mph with gusts 35 to 40 mph.

* RELATIVE HUMIDITY...8 to 11 percent.

* IMPACTS...Any fires that develop will likely spread rapidly. 
  Outdoor burning is not recommended.

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.

&&

$$

AZZ104-106-107-240200-
/O.CON.KFGZ.FW.W.0002.000000T0000Z-170424T0200Z/
Kaibab Plateau (Fire Weather Zone 104)-
Grand Canyon Country (Fire Weather Zone 106)-
Coconino Plateau (Fire Weather Zone 107)-
240 PM MST Sun Apr 23 2017

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 PM MST THIS EVENING
FOR STRONG WINDS AND LOW RELATIVE HUMIDITY...

* AFFECTED AREAS...Kaibab Plateau, Grand Canyon Country, 
  Coconino Plateau. 

* 20 FOOT WIND...Southwest 20 to 25 mph with gusts 30 to 45 mph
  through early this evening.

* RELATIVE HUMIDITY...8 to 14 percent.

* IMPACTS...Any fires that develop will likely spread rapidly. 
  Outdoor burning is not recommended.

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.

&&

$$
156 
WWUS85 KFGZ 240154
RFWFGZ

URGENT - FIRE WEATHER MESSAGE
National Weather Service Flagstaff AZ
654 PM MST Sun Apr 23 2017

AZZ109-111>114-116-139-140-241000-
/O.EXP.KFGZ.FW.W.0002.000000T0000Z-170424T0200Z/
/O.CON.KFGZ.FW.W.0003.170424T1800Z-170425T0300Z/
Northeast Plateau And Mesas Hwy 264 Northward (Fire Weather Zone
109)-
Chuska Mountains and Defiance Plateau (Fire Weather Zone 111)-
Little Colorado River Valley in Coconino County (Fire Weather
Zone 112)-
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)-
Black Mesa Area (Fire Weather Zone 139)-
Northeast Plateaus and Mesas South of Hwy 264 (Fire Weather Zone
140)-
654 PM MST Sun Apr 23 2017

...RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM TO 8 PM MST
MONDAY FOR STRONG WINDS AND LOW RELATIVE HUMIDITY...

...RED FLAG WARNING WILL EXPIRE AT 7 PM MST THIS EVENING FOR 
STRONG WINDS AND LOW RELATIVE HUMIDITY...

* AFFECTED AREAS...Most of northeast Arizona along and north of 
  the eastern Mogollon Rim. 

* 20 FOOT WIND...Southwest winds increasing to 20 to 30 mph with 
  gusts 35 to 45 mph from late Monday morning through Monday 
  evening.

* RELATIVE HUMIDITY...8 to 15 percent.

* IMPACTS...Any fires that develop will likely spread rapidly.
  Outdoor burning is not recommended.

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.

&&

$$

AZZ104-106-107-115-240300-
/O.EXP.KFGZ.FW.W.0002.000000T0000Z-170424T0200Z/
Kaibab Plateau (Fire Weather Zone 104)-
Grand Canyon Country (Fire Weather Zone 106)-
Coconino Plateau (Fire Weather Zone 107)-
Western Mogollon Rim (Fire Weather Zone 115)-
654 PM MST Sun Apr 23 2017

...RED FLAG WARNING WILL EXPIRE AT 7 PM MST THIS EVENING FOR
STRONG WINDS AND LOW RELATIVE HUMIDITY...

The period of critical fire weather has ended as wind speeds
continue to decrease this evening and relative humidity rises. The
Red Flag Warning will expire at 7 PM MST.

$$

AZZ110-241000-
/O.CON.KFGZ.FW.W.0003.170424T1800Z-170425T0300Z/
Chinle Valley (Fire Weather Zone 110)-
654 PM MST Sun Apr 23 2017

...RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM TO 8 PM MST
MONDAY FOR STRONG WINDS AND LOW RELATIVE HUMIDITY...

* AFFECTED AREA...Chinle Valley.

* 20 FOOT WIND...Southwest 20 to 25 mph with gusts 35 to 40 mph.

* RELATIVE HUMIDITY...8 to 11 percent.

* IMPACTS...Any fires that develop will likely spread rapidly. 
  Outdoor burning is not recommended.

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.

&&

$$

The office that day

Everything else NWS Flagstaff, AZ issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 22, 2:37 PM MSTFire Weather WatchFGZApache, Coconino, Navajo24 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.