Alert archive / Arizona / Red Flag Warnings in 2011
Red Flag Warning 2, NWS Phoenix, AZ
NWS Phoenix, AZ issued this red flag warning at Apr 26, 2011, 4:00 AM MST for 5 counties in Arizona. It took effect at Apr 26, 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 26, 2011, 4:00 AM MST (11:00 UTC)
- In effect from
- Apr 26, 2011, 1:00 PM MST
- Expired
- Apr 26, 2011, 8:00 PM MST
- In force
- 7 hr
- Issued by
- NWS Phoenix, AZ
Counties Gila County, AZ, La Paz County, AZ, Maricopa County, AZ, Pinal County, AZ, Yuma County, AZ
The radar
The Phoenix radar (KIWA), 78 km from the middle of the area, began a volume at 10:59 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
Tuscon, AZ (KTUS), launched 00:00Z, 11.0 hours before the alert went out and 197 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
- 4087 m above ground
- 0-6 km bulk shear
- 49 kt
- 0-1 km storm-relative helicity
- 4 m²/s²
- 0-3 km storm-relative helicity
- 106 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
941 WWUS85 KPSR 261100 RFWPSR URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE PHOENIX AZ 400 AM MST TUE APR 26 2011 AZZ133-270300- /O.NEW.KPSR.FW.W.0002.110426T2000Z-110427T0300Z/ ARIZONA FIRE WEATHER ZONE 133 SOUTHERN GILA COUNTY/TONTO NATIONAL FOREST FOOTHILLS- 400 AM MST TUE APR 26 2011 ...RED FLAG WARNING IN EFFECT FROM 1 PM THIS AFTERNOON TO 8 PM MST THIS EVENING DUE TO STRONG WINDS...LOW RELATIVE HUMIDITY AND HIGH FIRE DANGER IN FIRE ZONE 133... THE NATIONAL WEATHER SERVICE IN PHOENIX HAS ISSUED A RED FLAG WARNING FROM 1 PM THIS AFTERNOON TO 8 PM MST THIS EVENING. * AFFECTED AREA: IN ARIZONA...FIRE ZONE 133...GENERALLY SOUTHERN GILA COUNTY AND THE TONTO NATIONAL FOREST FOOTHILLS. * WIND: LATE AFTERNOON AND EVENING SOUTHWEST WINDS SUSTAINED AT 20 TO 25 MPH WITH GUSTS TO 40 MPH. * HUMIDITY: HUMIDITY LEVELS FALLING TO BETWEEN 10 AND 14 PERCENT THIS AFTERNOON. * IMPACTS: THE COMBINATION OF STRONG WIND AND LOW HUMIDITY WILL CREATE HIGH FIRE DANGER TODAY. PRECAUTIONARY/PREPAREDNESS ACTIONS... PLEASE ADVISE THE APPROPRIATE OFFICIALS AND FIRE CREWS IN THE FIELD OF THIS RED FLAG WARNING. && $$ NATIONAL WEATHER SERVICE PHOENIX IS ON THE INTERNET AT WEATHER.GOV/PHOENIX
3 follow-up statements
115 WWUS85 KPSR 262139 RFWPSR URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE PHOENIX AZ 239 PM MST TUE APR 26 2011 AZZ132-270300- /O.EXA.KPSR.FW.W.0002.000000T0000Z-110427T0300Z/ ARIZONA FIRE WEATHER ZONE 132 SOUTH-CENTRAL AND SOUTHWEST DESERTS- 239 PM MST TUE APR 26 2011 ...RED FLAG WARNING IN EFFECT UNTIL 8 PM MST THIS EVENING DUE TO STRONG WINDS...LOW RELATIVE HUMIDITY AND HIGH FIRE DANGER FOR MAINLY SOUTH-CENTRAL ARIZONA...THE EAST PORTION OF FIRE ZONE 132... THE NATIONAL WEATHER SERVICE IN PHOENIX HAS ISSUED A RED FLAG WARNING...WHICH IS IN EFFECT UNTIL 8 PM MST THIS EVENING. * AFFECTED AREA: IN ARIZONA...MAINLY MARICOPA COUNTY AND PINAL COUNTY...MAINLY THE EAST PORTION OF FIRE WEATHER ZONE 132. * WIND: FROM THE SOUTHWEST SUSTAINED AT 20 TO 25 MPH WITH GUSTS TO 35 TO NEAR 40 MPH. * HUMIDITY: IN THE SINGLE DIGITS ABOVE AND BELOW ZERO. * IMPACTS: THE COMBINATION OF STRONG WIND AND VERY LOW RELATIVE HUMIDITY MEAN A HIGH FIRE DANGER. PRECAUTIONARY/PREPAREDNESS ACTIONS... PLEASE ADVISE THE APPROPRIATE OFFICIALS AND FIRE CREWS IN THE FIELD OF THIS RED FLAG WARNING. && $$ AZZ133-270300- /O.CON.KPSR.FW.W.0002.000000T0000Z-110427T0300Z/ ARIZONA FIRE WEATHER ZONE 133 SOUTHERN GILA COUNTY/TONTO NATIONAL FOREST FOOTHILLS- 239 PM MST TUE APR 26 2011 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MST THIS EVENING DUE TO STRONG WINDS...LOW RELATIVE HUMIDITY AND HIGH FIRE DANGER FOR FIRE ZONE 133... * AFFECTED AREA: IN ARIZONA...NORTHEAST MARICOPA COUNTY...SOUTHERN GILA COUNTY...AND NORTHEAST PINAL COUNTY...FIRE WEATHER ZONE 133 * WIND: FROM THE SOUTHWEST SUSTAINED AT 20 TO 25 MPH WITH GUSTS TO 35 TO NEAR 40 MPH. * HUMIDITY: BETWEEN 10 AND 14 PERCENT THIS AFTERNOON. * IMPACTS: THE COMBINATION OF STRONG WIND AND VERY LOW RELATIVE HUMIDITY MEAN A HIGH FIRE DANGER. PRECAUTIONARY/PREPAREDNESS ACTIONS... PLEASE ADVISE THE APPROPRIATE OFFICIALS AND FIRE CREWS IN THE FIELD OF THIS RED FLAG WARNING. && $$ NATIONAL WEATHER SERVICE PHOENIX IS ON THE INTERNET AT WEATHER.GOV/PHOENIX ELLIS
352 WWUS85 KPSR 262149 CCA RFWPSR URGENT - FIRE WEATHER MESSAGE...CORRECTED NATIONAL WEATHER SERVICE PHOENIX AZ 249 PM MST TUE APR 26 2011 AZZ132-270300- /O.COR.KPSR.FW.W.0002.000000T0000Z-110427T0300Z/ ARIZONA FIRE WEATHER ZONE 132 SOUTH-CENTRAL AND SOUTHWEST DESERTS- 249 PM MST TUE APR 26 2011 ...RED FLAG WARNING IN EFFECT UNTIL 8 PM MST THIS EVENING DUE TO STRONG WINDS...LOW RELATIVE HUMIDITY AND HIGH FIRE DANGER FOR MAINLY SOUTH-CENTRAL ARIZONA...THE EAST PORTION OF FIRE ZONE 132... THE NATIONAL WEATHER SERVICE IN PHOENIX HAS ISSUED A RED FLAG WARNING...WHICH IS IN EFFECT UNTIL 8 PM MST THIS EVENING. * AFFECTED AREA: IN ARIZONA...MAINLY MARICOPA COUNTY AND PINAL COUNTY...MAINLY THE EAST PORTION OF FIRE WEATHER ZONE 132. * WIND: FROM THE SOUTHWEST SUSTAINED AT 20 TO 25 MPH WITH GUSTS TO 35 TO NEAR 40 MPH. * HUMIDITY: IN THE SINGLE DIGITS. * IMPACTS: THE COMBINATION OF STRONG WIND AND VERY LOW RELATIVE HUMIDITY MEAN A HIGH FIRE DANGER. PRECAUTIONARY/PREPAREDNESS ACTIONS... PLEASE ADVISE THE APPROPRIATE OFFICIALS AND FIRE CREWS IN THE FIELD OF THIS RED FLAG WARNING. && $$ AZZ133-270300- /O.CON.KPSR.FW.W.0002.000000T0000Z-110427T0300Z/ ARIZONA FIRE WEATHER ZONE 133 SOUTHERN GILA COUNTY/TONTO NATIONAL FOREST FOOTHILLS- 249 PM MST TUE APR 26 2011 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MST THIS EVENING DUE TO STRONG WINDS...LOW RELATIVE HUMIDITY AND HIGH FIRE DANGER FOR FIRE ZONE 133... * AFFECTED AREA: IN ARIZONA...NORTHEAST MARICOPA COUNTY...SOUTHERN GILA COUNTY...AND NORTHEAST PINAL COUNTY...FIRE WEATHER ZONE 133 * WIND: FROM THE SOUTHWEST SUSTAINED AT 20 TO 25 MPH WITH GUSTS TO 35 TO NEAR 40 MPH. * HUMIDITY: BETWEEN 10 AND 14 PERCENT THIS AFTERNOON. * IMPACTS: THE COMBINATION OF STRONG WIND AND VERY LOW RELATIVE HUMIDITY MEAN A HIGH FIRE DANGER. PRECAUTIONARY/PREPAREDNESS ACTIONS... PLEASE ADVISE THE APPROPRIATE OFFICIALS AND FIRE CREWS IN THE FIELD OF THIS RED FLAG WARNING. && $$ NATIONAL WEATHER SERVICE PHOENIX IS ON THE INTERNET AT WEATHER.GOV/PHOENIX ELLIS
739 WWUS85 KPSR 270322 RFWPSR URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE PHOENIX AZ 822 PM MST TUE APR 26 2011 AZZ132-133-270430- /O.EXP.KPSR.FW.W.0002.000000T0000Z-110427T0300Z/ ARIZONA FIRE WEATHER ZONE 132 SOUTH-CENTRAL AND SOUTHWEST DESERTS- ARIZONA FIRE WEATHER ZONE 133 SOUTHERN GILA COUNTY/TONTO NATIONAL FOREST FOOTHILLS- 822 PM MST TUE APR 26 2011 ...RED FLAG WARNING HAS EXPIRED... WINDS HAVE SUBSIDED SOMEWHAT THIS EVENING WHILE RELATIVE HUMIDITIES HAVE INCREASED. THE RED FLAG WARNING IS NO LONGER IN EFFECT. $$ NATIONAL WEATHER SERVICE PHOENIX IS ON THE INTERNET AT WEATHER.GOV/PHOENIX
The office that day
Everything else NWS Phoenix, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 26, 3:05 PM MST | Wind Advisory | PSR | 4 hr |
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.