Alert archive / Arizona / Red Flag Warnings in 2018

Red Flag Warning 13, NWS Flagstaff, AZ

May 10, 20185 counties in Arizona

NWS Flagstaff, AZ issued this red flag warning at May 10, 2018, 3:49 AM MST for 5 counties in Arizona. It took effect at May 11, 2018, 10:00 AM MST. It was in force for 10 hr. 3 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
May 10, 2018, 3:49 AM MST (10:49 UTC)
In effect from
May 11, 2018, 10:00 AM MST
Expired
May 11, 2018, 8:00 PM MST
In force
10 hr
Issued by
NWS Flagstaff, AZ

Counties Apache County, AZ, Coconino County, AZ, Gila County, AZ, Navajo County, AZ, Yavapai County, AZ

The radar

The Flagstaff radar (KFSX), 52 km from the middle of the area, began a volume at 10:49 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.

What was reported inside it

TimeReportWhereRemark
May 11, 12:51 PM MSTNON-TSTM WND GST 59Window Rock Airport, AZASOS STATION RQE, WINDOW ROCK AIRPORT.
May 11, 1:15 PM MSTNON-TSTM WND GST 61Springerville Municipal, AZAWOS STATION JTC, SPRINGERVILLE MUNICIPAL AIRPORT.
May 11, 2:43 PM MSTNON-TSTM WND GST 60Flagstaff Airport, AZASOS STATION FLG, FLAGSTAFF AIRPORT.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Flgstf/Belemont, AZ (KFGZ), launched 00:00Z, 10.8 hours before the alert went out and 78 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 00:00Z on 2018-05-10Temperature 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 00:00Z on 2018-05-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 70 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
4191 m above ground
0-6 km bulk shear
21 kt
0-1 km storm-relative helicity
70 m²/s²
0-3 km storm-relative helicity
101 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

599 
WWUS85 KFGZ 101049
RFWFGZ

URGENT - FIRE WEATHER MESSAGE
National Weather Service Flagstaff AZ
349 AM MST Thu May 10 2018

AZZ104-106>116-139-140-101900-
/O.UPG.KFGZ.FW.A.0008.180511T1900Z-180512T0300Z/
/O.NEW.KFGZ.FW.W.0013.180511T1900Z-180512T0300Z/
/O.CON.KFGZ.FW.W.0012.180510T1900Z-180511T0200Z/
Kaibab Plateau (Fire Weather Zone 104)-
Grand Canyon Country (Fire Weather Zone 106)-
Coconino Plateau (Fire Weather Zone 107)-
Yavapai County Mountains (Fire Weather Zone 108)-
Northeast Plateau And Mesas Hwy 264 Northward (Fire Weather Zone
109)-Chinle Valley (Fire Weather Zone 110)-
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)-
349 AM MST Thu May 10 2018

...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TODAY TO 7 PM MST
THIS EVENING FOR THE MOGOLLON RIM AND YAVAPAI COUNTY MOUNTAINS
NORTH...

...RED FLAG WARNING IN EFFECT FROM NOON TO 8 PM MST FRIDAY DUE TO
STRONG WINDS AND LOW RELATIVE HUMIDITY FOR ALL OF NORTHERN 
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 noon to 8 PM MST Friday. The Fire Weather Watch is
no longer in effect.

* AFFECTED AREA...Mogollon Rim and Yavapai County Mountains 
  north on Thursday. All of northern Arizona on Friday.

* WINDS...Thursday southwest winds 15 to 20 mph with gusts up to 
  35 mph. Friday southwest 20 to 30 mph with gusts up to 55 mph.

* RELATIVE HUMIDITY...As low as 7 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.

&&

$$

AZZ105-117-118-137-138-101900-
/O.UPG.KFGZ.FW.A.0008.180511T1900Z-180512T0300Z/
/O.NEW.KFGZ.FW.W.0013.180511T1900Z-180512T0300Z/
Marble and Glen Canyons (Fire Weather Zone 105)-
White Mountains (Fire Weather Zone 117)-
Northern Gila County (Fire Weather Zone 118)-
Yavapai County Valleys and Basins (Fire Weather Zone 137)-
Oak Creek and Sycamore Canyons (Fire Weather Zone 138)-
349 AM MST Thu May 10 2018

...RED FLAG WARNING IN EFFECT FROM NOON TO 8 PM MST FRIDAY DUE TO
STRONG WINDS AND LOW RELATIVE HUMIDITY FOR ALL OF NORTHERN 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 noon to 8 PM MST Friday. The Fire Weather Watch is
no longer in effect.

* AFFECTED AREA...All of northern Arizona.

* WINDS...Southwest 15 to 25 mph with gusts up to 45 mph.

* RELATIVE HUMIDITY...As low as 11 percent.

* IMPACTS...Any fires that develop will spread quickly.

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
6 follow-up statements
361 
WWUS85 KFGZ 101844
RFWFGZ

URGENT - FIRE WEATHER MESSAGE
National Weather Service Flagstaff AZ
1144 AM MST Thu May 10 2018


AZZ104-106>116-139-140-120300-
/O.CON.KFGZ.FW.W.0012.180510T1900Z-180511T0200Z/
/O.CON.KFGZ.FW.W.0013.180511T1900Z-180512T0300Z/
Kaibab Plateau (Fire Weather Zone 104)-
Grand Canyon Country (Fire Weather Zone 106)-
Coconino Plateau (Fire Weather Zone 107)-
Yavapai County Mountains (Fire Weather Zone 108)-
Northeast Plateau And Mesas Hwy 264 Northward (Fire Weather Zone
109)-Chinle Valley (Fire Weather Zone 110)-
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)-
1144 AM MST Thu May 10 2018

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 PM MST THIS EVENING
FOR THE MOGOLLON RIM AND YAVAPAI COUNTY MOUNTAINS NORTH...
...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TO 8 PM MST
FRIDAY FOR THE MOGOLLON RIM AND YAVAPAI COUNTY MOUNTAINS NORTH...

* AFFECTED AREA...Mogollon Rim and Yavapai County Mountains 
  north on Thursday. All of northern Arizona on Friday.

* WINDS...Southwest 20 to 30 mph with gusts up to 55 mph.

* RELATIVE HUMIDITY...As low as 7 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.

&&

$$

AZZ105-117-118-137-138-120300-
/O.CON.KFGZ.FW.W.0013.180511T1900Z-180512T0300Z/
Marble and Glen Canyons (Fire Weather Zone 105)-
White Mountains (Fire Weather Zone 117)-
Northern Gila County (Fire Weather Zone 118)-
Yavapai County Valleys and Basins (Fire Weather Zone 137)-
Oak Creek and Sycamore Canyons (Fire Weather Zone 138)-
1144 AM MST Thu May 10 2018

...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TO 8 PM MST
FRIDAY FOR ALL OF NORTHERN ARIZONA...

* AFFECTED AREA...All of northern Arizona.

* WINDS...Southwest 15 to 25 mph with gusts up to 45 mph.

* RELATIVE HUMIDITY...As low as 11 percent.

* IMPACTS...Any fires that develop will spread quickly.

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
352 
WWUS85 KFGZ 110208
RFWFGZ

URGENT - FIRE WEATHER MESSAGE
National Weather Service Flagstaff AZ
708 PM MST Thu May 10 2018

AZZ104-106>116-139-140-111015-
/O.EXP.KFGZ.FW.W.0012.000000T0000Z-180511T0200Z/
/O.CON.KFGZ.FW.W.0013.180511T1900Z-180512T0300Z/
Kaibab Plateau (Fire Weather Zone 104)-
Grand Canyon Country (Fire Weather Zone 106)-
Coconino Plateau (Fire Weather Zone 107)-
Yavapai County Mountains (Fire Weather Zone 108)-
Northeast Plateau And Mesas Hwy 264 Northward (Fire Weather Zone
109)-Chinle Valley (Fire Weather Zone 110)-
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)-
708 PM MST Thu May 10 2018

...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TO 8 PM MST
FRIDAY FOR THE MOGOLLON RIM AND YAVAPAI COUNTY MOUNTAINS NORTH...
...RED FLAG WARNING HAS EXPIRED FOR THE MOGOLLON RIM AND YAVAPAI
COUNTY MOUNTAINS NORTH...

* AFFECTED AREA...All of northern Arizona on Friday.

* WINDS...Southwest 20 to 30 mph with gusts up to 55 mph.

* RELATIVE HUMIDITY...As low as 7 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.

&&

$$

AZZ105-117-118-137-138-111015-
/O.CON.KFGZ.FW.W.0013.180511T1900Z-180512T0300Z/
Marble and Glen Canyons (Fire Weather Zone 105)-
White Mountains (Fire Weather Zone 117)-
Northern Gila County (Fire Weather Zone 118)-
Yavapai County Valleys and Basins (Fire Weather Zone 137)-
Oak Creek and Sycamore Canyons (Fire Weather Zone 138)-
708 PM MST Thu May 10 2018

...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TO 8 PM MST
FRIDAY FOR ALL OF NORTHERN ARIZONA...

* AFFECTED AREA...All of northern Arizona.

* WINDS...Southwest 15 to 25 mph with gusts up to 45 mph.

* RELATIVE HUMIDITY...As low as 11 percent.

* IMPACTS...Any fires that develop will spread quickly.

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
815 
WWUS85 KFGZ 110426
RFWFGZ

URGENT - FIRE WEATHER MESSAGE
National Weather Service Flagstaff AZ
926 PM MST Thu May 10 2018

AZZ104>118-137>140-111500-
/O.CON.KFGZ.FW.W.0013.180511T1900Z-180512T0300Z/
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)-
Yavapai County Mountains (Fire Weather Zone 108)-
Northeast Plateau And Mesas Hwy 264 Northward (Fire Weather Zone
109)-Chinle Valley (Fire Weather Zone 110)-
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)-
White Mountains (Fire Weather Zone 117)-
Northern Gila County (Fire Weather Zone 118)-
Yavapai County Valleys and Basins (Fire Weather Zone 137)-
Oak Creek and Sycamore Canyons (Fire Weather Zone 138)-
Black Mesa Area (Fire Weather Zone 139)-
Northeast Plateaus and Mesas South of Hwy 264 (Fire Weather Zone
140)-
926 PM MST Thu May 10 2018

...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TO 8 PM MST
FRIDAY DUE TO STRONG WINDS AND LOW HUMIDITY FOR ALL OF NORTHERN
ARIZONA...

* AFFECTED AREA...All of northern Arizona.

* WINDS...Southwest 15 to 30 mph with gusts of 45 to 55 mph.

* RELATIVE HUMIDITY...As low as 9 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
107 
WWUS85 KFGZ 111109
RFWFGZ

URGENT - FIRE WEATHER MESSAGE
National Weather Service Flagstaff AZ
409 AM MST Fri May 11 2018


AZZ109>114-116>118-139-140-111915-
/O.NEW.KFGZ.FW.W.0014.180512T1800Z-180513T0300Z/
/O.EXT.KFGZ.FW.W.0013.180511T1700Z-180512T0300Z/
Northeast Plateau And Mesas Hwy 264 Northward (Fire Weather Zone
109)-Chinle Valley (Fire Weather Zone 110)-
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)-
White Mountains (Fire Weather Zone 117)-
Northern Gila County (Fire Weather Zone 118)-
Black Mesa Area (Fire Weather Zone 139)-
Northeast Plateaus and Mesas South of Hwy 264 (Fire Weather Zone
140)-
409 AM MST Fri May 11 2018

...RED FLAG WARNING NOW IN EFFECT FROM 10 AM THIS MORNING TO 8 PM
MST THIS EVENING FOR ALL OF NORTHERN ARIZONA...

...RED FLAG WARNING IN EFFECT FROM 11 AM TO 8 PM MST SATURDAY DUE
TO STRONG WINDS AND LOW RELATIVE HUMIDITY FOR APACHE COUNTY, 
NAVAJO COUNTY, NORTHERN GILA COUNTY, AND PORTIONS OF EASTERN 
COCONINO 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 8 PM MST Saturday.

* AFFECTED AREA...All of northern Arizona for Friday. Apache
  County, Navajo County, northern Gila County, and portions of
  eastern Coconino County for Saturday.

* WINDS...Southwest 25 to 35 mph with gusts up to 55 mph for 
  Friday. Southwest winds 20 to 25 mph with gusts 35 to 40 mph for
  Saturday.

* RELATIVE HUMIDITY...As low as 9 percent.

* IMPACTS...Any fires that develop will spread rapidly.

$$

AZZ104>108-115-137-138-111915-
/O.EXT.KFGZ.FW.W.0013.180511T1700Z-180512T0300Z/
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)-
Yavapai County Mountains (Fire Weather Zone 108)-
Western Mogollon Rim (Fire Weather Zone 115)-
Yavapai County Valleys and Basins (Fire Weather Zone 137)-
Oak Creek and Sycamore Canyons (Fire Weather Zone 138)-
409 AM MST Fri May 11 2018

...RED FLAG WARNING NOW IN EFFECT FROM 10 AM THIS MORNING TO 8 PM
MST THIS EVENING FOR ALL OF NORTHERN ARIZONA...

* AFFECTED AREA...All of northern Arizona.

* WINDS...Southwest 20 to 30 mph with gusts up to 55 mph.

* RELATIVE HUMIDITY...As low as 11 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
104 
WWUS85 KFGZ 111827
RFWFGZ

URGENT - FIRE WEATHER MESSAGE
National Weather Service Flagstaff AZ
1127 AM MST Fri May 11 2018

AZZ109>114-116>118-139-140-120300-
/O.CON.KFGZ.FW.W.0013.000000T0000Z-180512T0300Z/
/O.CON.KFGZ.FW.W.0014.180512T1800Z-180513T0300Z/
Northeast Plateau And Mesas Hwy 264 Northward (Fire Weather Zone
109)-Chinle Valley (Fire Weather Zone 110)-
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)-
White Mountains (Fire Weather Zone 117)-
Northern Gila County (Fire Weather Zone 118)-
Black Mesa Area (Fire Weather Zone 139)-
Northeast Plateaus and Mesas South of Hwy 264 (Fire Weather Zone
140)-
1127 AM MST Fri May 11 2018

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MST THIS EVENING
FOR ALL OF NORTHERN ARIZONA...

...RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM TO 8 PM MST
SATURDAY FOR EASTERN ARIZONA...

* AFFECTED AREA...All of northern Arizona today. Apache County, 
  Navajo County, northern Gila County, and portions of eastern 
  Coconino County on Saturday.

* WINDS...Southwest 25 to 35 mph with gusts up to 55 mph.

* RELATIVE HUMIDITY...8 to 16 percent.

* IMPACTS...Any fires that develop will spread rapidly.

$$

AZZ104>108-115-137-138-120300-
/O.CON.KFGZ.FW.W.0013.000000T0000Z-180512T0300Z/
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)-
Yavapai County Mountains (Fire Weather Zone 108)-
Western Mogollon Rim (Fire Weather Zone 115)-
Yavapai County Valleys and Basins (Fire Weather Zone 137)-
Oak Creek and Sycamore Canyons (Fire Weather Zone 138)-
1127 AM MST Fri May 11 2018

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MST THIS EVENING
FOR ALL OF NORTHERN ARIZONA...

* AFFECTED AREA...All of northern Arizona.

* WINDS...Southwest 25 to 35 mph with gusts up to 55 mph.

* RELATIVE HUMIDITY...8 to 16 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
653 
WWUS85 KFGZ 120259
RFWFGZ

URGENT - FIRE WEATHER MESSAGE
National Weather Service Flagstaff AZ
759 PM MST Fri May 11 2018

AZZ109>114-116>118-139-140-121100-
/O.EXP.KFGZ.FW.W.0013.000000T0000Z-180512T0300Z/
/O.CON.KFGZ.FW.W.0014.180512T1800Z-180513T0300Z/
Northeast Plateau And Mesas Hwy 264 Northward (Fire Weather Zone
109)-Chinle Valley (Fire Weather Zone 110)-
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)-
White Mountains (Fire Weather Zone 117)-
Northern Gila County (Fire Weather Zone 118)-
Black Mesa Area (Fire Weather Zone 139)-
Northeast Plateaus and Mesas South of Hwy 264 (Fire Weather Zone
140)-
759 PM MST Fri May 11 2018

...RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM TO 8 PM MST
SATURDAY FOR ALL OF NORTHERN ARIZONA...
...RED FLAG WARNING WILL EXPIRE AT 8 PM MST THIS EVENING FOR ALL
OF NORTHERN ARIZONA...

* AFFECTED AREA...Apache County, Navajo County, northern Gila 
  County, and portions of eastern Coconino County on Saturday.

* WINDS...Southwest 20 to 30 mph with gusts up to 45 mph.

* RELATIVE HUMIDITY...As low as 8 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.

&&

$$

AZZ104>108-115-137-138-120400-
/O.EXP.KFGZ.FW.W.0013.000000T0000Z-180512T0300Z/
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)-
Yavapai County Mountains (Fire Weather Zone 108)-
Western Mogollon Rim (Fire Weather Zone 115)-
Yavapai County Valleys and Basins (Fire Weather Zone 137)-
Oak Creek and Sycamore Canyons (Fire Weather Zone 138)-
759 PM MST Fri May 11 2018

...RED FLAG WARNING WILL EXPIRE AT 8 PM MST THIS EVENING FOR ALL
OF NORTHERN ARIZONA...

Winds will continue to decrease late this evening, and the Red
Flag Warning is being allowed to expire.

$$

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.

IssuedProductOfficeCountiesLasted
May 10, 2:29 AM MSTWind AdvisoryFGZApache, Coconino, Gila, Navajo, Yavapai42 hr

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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.