Alert archive / Arizona / Red Flag Warnings in 2011
Red Flag Warning 2, NWS Flagstaff, AZ
NWS Flagstaff, AZ issued this red flag warning at Apr 12, 2011, 2:23 PM MST for Apache County, Coconino County, Navajo County, Arizona. It took effect at Apr 13, 2011, 1:00 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 12, 2011, 2:23 PM MST (21:23 UTC)
- In effect from
- Apr 13, 2011, 1:00 PM MST
- Expired
- Apr 13, 2011, 8:00 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 21:25 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, 9.4 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
- 2505 m above ground
- 0-6 km bulk shear
- 71 kt
- 0-1 km storm-relative helicity
- 241 m²/s²
- 0-3 km storm-relative helicity
- 263 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
755 WWUS85 KFGZ 122123 RFWFGZ URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE FLAGSTAFF AZ 223 PM MST TUE APR 12 2011 AZZ109>114-139-140-130930- /O.NEW.KFGZ.FW.W.0002.110413T1800Z-110414T0200Z/ 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)-BLACK MESA AREA (FIRE WEATHER ZONE 139)- NORTHEAST PLATEAUS AND MESAS SOUTH OF HWY 264 (FIRE WEATHER ZONE 140)- 223 PM MST TUE APR 12 2011 ...RED FLAG WARNING IN EFFECT FROM 11 AM TO 7 PM MST WEDNESDAY 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 7 PM MST WEDNESDAY DUE TO STRONG WINDS AND LOW RELATIVE HUMIDITY. * AFFECTED AREA: NORTH AND EAST OF THE MOGOLLON RIM BELOW 6000 FEET. * TIMING: WINDS WILL INCREASE LATE WEDNESDAY MORNING THROUGH THE AFTERNOON AND INTO EARLY EVENING. * 20-FOOT WINDS: WILL BECOME SUSTAINED 20 TO 25 MPH WITH GUSTS TO 35 TO 40 MPH. * RELATIVE HUMIDITY: WILL DROP BELOW 15 PERCENT BY LATE MORNING.| 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 HUMIDITY WILL CREATE EXTREME FIRE GROWTH POTENTIAL. PLEASE NOTIFY FIELD CREWS OF THIS RED FLAG WARNING. && $$ HTTP://WEATHER.GOV/FLAGSTAFF
4 follow-up statements
637 WWUS85 KFGZ 130636 RFWFGZ URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE FLAGSTAFF AZ 1136 PM MST TUE APR 12 2011 AZZ109>114-139-140-131845- /O.CON.KFGZ.FW.W.0002.110413T1800Z-110414T0200Z/ NORTHEAST PLATEAU AND MESAS HWY 264 NORTHWARD (FIRE WEATHER ZONE 109)-CHINLE VALLEY (FIRE WEATHER ZONE 110)- CHUSKA MOUNTAINS AND DEFIANCE PLATEAU (FIRE WEATHER ZONE 111)- LITTLE COLORADO RIVER VALLEY IN COCONINO COUNTY (FIRE WEATHER ZONE 112)- LITTLE COLORADO RIVER VALLEY IN NAVAJO COUNTY (FIRE WEATHER ZONE 113)- LITTLE COLORADO RIVER VALLEY IN APACHE COUNTY (FIRE WEATHER ZONE 114)-BLACK MESA AREA (FIRE WEATHER ZONE 139)- NORTHEAST PLATEAUS AND MESAS SOUTH OF HWY 264 (FIRE WEATHER ZONE 140)- 1136 PM MST TUE APR 12 2011 ...RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM TO 7 PM MST WEDNESDAY FOR STRONG WINDS AND LOW RELATIVE HUMIDITY FOR ELEVATIONS BELOW 6000 FEET... * AFFECTED AREA: NORTH AND EAST OF THE MOGOLLON RIM BELOW 6000 FEET. * TIMING: WINDS WILL INCREASE LATE WEDNESDAY MORNING THROUGH THE AFTERNOON AND INTO EARLY EVENING. * 20-FOOT WINDS: WILL BECOME SUSTAINED 20 TO 25 MPH WITH GUSTS TO 35 TO 40 MPH. * RELATIVE HUMIDITY: WILL DROP BELOW 15 PERCENT BY LATE MORNING.| PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING OR ARE IMMINENT. A COMBINATION OF STRONG WINDS AND LOW RELATIVE HUMIDITY WILL CREATE EXTREME FIRE GROWTH POTENTIAL. PLEASE NOTIFY FIELD CREWS OF THIS RED FLAG WARNING. && $$ HTTP://WEATHER.GOV/FLAGSTAFF
374 WWUS85 KFGZ 131202 RFWFGZ URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE FLAGSTAFF AZ 502 AM MST WED APR 13 2011 AZZ109>114-139-140-140300- /O.EXT.KFGZ.FW.W.0002.110413T2000Z-110414T0300Z/ 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)-BLACK MESA AREA (FIRE WEATHER ZONE 139)- NORTHEAST PLATEAUS AND MESAS SOUTH OF HWY 264 (FIRE WEATHER ZONE 140)- 502 AM MST WED APR 13 2011 ...RED FLAG WARNING NOW IN EFFECT FROM 1 PM THIS AFTERNOON TO 8 PM MST THIS EVENING FOR STRONG WINDS AND LOW RELATIVE HUMIDITY FOR ELEVATIONS BELOW 7000 FEET... THE RED FLAG WARNING IS NOW IN EFFECT FROM 1 PM THIS AFTERNOON TO 8 PM MST THIS EVENING. * AFFECTED AREA: NORTH AND EAST OF THE MOGOLLON RIM BELOW 7000 FEET. * TIMING: WINDS WILL INCREASE THIS AFTERNOON AND CONTINUE INTO THE MID EVENING HOURS AHEAD OF A COLD FRONT. * 20-FOOT WINDS: WILL BECOME SUSTAINED 20-25 MPH WITH GUSTS TO 35-40 MPH. * RELATIVE HUMIDITY: WILL DROP TO 9-15 PERCENT THIS AFTERNOON. 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 HUMIDITY WILL CREATE EXTREME FIRE GROWTH POTENTIAL. PLEASE NOTIFY FIELD CREWS OF THIS RED FLAG WARNING. && $$ HTTP://WEATHER.GOV/FLAGSTAFF
706 WWUS85 KFGZ 132213 RFWFGZ URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE FLAGSTAFF AZ 313 PM MST WED APR 13 2011 AZZ109>114-139-140-140300- /O.CON.KFGZ.FW.W.0002.000000T0000Z-110414T0300Z/ NORTHEAST PLATEAU AND MESAS HWY 264 NORTHWARD (FIRE WEATHER ZONE 109)-CHINLE VALLEY (FIRE WEATHER ZONE 110)- CHUSKA MOUNTAINS AND DEFIANCE PLATEAU (FIRE WEATHER ZONE 111)- LITTLE COLORADO RIVER VALLEY IN COCONINO COUNTY (FIRE WEATHER ZONE 112)- LITTLE COLORADO RIVER VALLEY IN NAVAJO COUNTY (FIRE WEATHER ZONE 113)- LITTLE COLORADO RIVER VALLEY IN APACHE COUNTY (FIRE WEATHER ZONE 114)-BLACK MESA AREA (FIRE WEATHER ZONE 139)- NORTHEAST PLATEAUS AND MESAS SOUTH OF HWY 264 (FIRE WEATHER ZONE 140)- 313 PM MST WED APR 13 2011 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MST THIS EVENING FOR STRONG WINDS AND LOW RELATIVE HUMIDITY FOR ELEVATIONS BELOW 7000 FEET... * AFFECTED AREA: NORTH AND EAST OF THE MOGOLLON RIM BELOW 7000 FEET. * TIMING: GUSTY SOUTHWEST WINDS WILL CONTINUE THROUGH THE MID EVENING HOURS AHEAD OF AN APPROACHING COOL FRONT. * 20-FOOT WINDS: SUSTAINED WINDS OF 20-25 MPH WITH GUSTS UP TO 35 MPH. * RELATIVE HUMIDITY: WILL REMAIN NEAR 9-15 PERCENT THIS AFTERNOON THROUGH EARLY EVENING. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING OR ARE IMMINENT. A COMBINATION OF STRONG WINDS AND LOW RELATIVE HUMIDITY WILL CREATE EXTREME FIRE GROWTH POTENTIAL. PLEASE NOTIFY FIELD CREWS OF THIS RED FLAG WARNING. && $$ HTTP://WEATHER.GOV/FLAGSTAFF
816 WWUS85 KFGZ 140300 RFWFGZ URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE FLAGSTAFF AZ 800 PM MST WED APR 13 2011 AZZ109>114-139-140-140400- /O.EXP.KFGZ.FW.W.0002.000000T0000Z-110414T0300Z/ 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)-BLACK MESA AREA (FIRE WEATHER ZONE 139)- NORTHEAST PLATEAUS AND MESAS SOUTH OF HWY 264 (FIRE WEATHER ZONE 140)- 800 PM MST WED APR 13 2011 ...RED FLAG WARNING WILL EXPIRE AT 8 PM MST THIS EVENING FOR STRONG WINDS AND LOW RELATIVE HUMIDITY FOR ELEVATIONS BELOW 7000 FEET... THE RED FLAG WARNING WILL EXPIRE AT 8 PM MST THIS EVENING. * AFFECTED AREA: NORTH AND EAST OF THE MOGOLLON RIM BELOW 7000 FEET. * TIMING: THE RED FLAG WARNING EXPIRES AT 8 PM MST THIS EVENING. * 20-FOOT WINDS: WINDS CONTINUE TO DECREASE THIS EVENING WITH MOST PLACES SHOWING WINDS SPEEDS RED FLAG WARNING CRITERIA. EXPECT SOUTHWEST WINDS OF 15 TO 20 MPH AND GUSTS FROM 20 TO 30 MPH FOR THE NEXT FEW HOURS. OVERNIGHT WINDS WILL DECREASE TO AROUND 10 MPH WITH A FEW GUSTS. * RELATIVE HUMIDITIES: RELATIVE HUMIDITIES ARE ON THE RISE THIS EVENING AS TEMPERATURES COOL. MOST PLACES ARE SHOWING RH VALUES GREATER THAN 15 PERCENT WITH VALUES EXPECTED TO RISE BETWEEN 40 TO 80 PERCENT OVERNIGHT. $$ HTTP://WEATHER.GOV/FLAGSTAFF
Nearby
Red Flag Warnings in Arizona, 2011Every red flag warning in 2011
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.