Alert archive / Arizona / Red Flag Warnings in 2012
Red Flag Warning 1, NWS Phoenix, AZ
NWS Phoenix, AZ issued this red flag warning at Jan 8, 2012, 4:04 AM MST for La Paz County, Yuma County, Arizona; Imperial County, Riverside County, California. It took effect at Jan 8, 2012, 2:00 PM MST. It was in force for 3 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
- Jan 8, 2012, 4:04 AM MST (11:04 UTC)
- In effect from
- Jan 8, 2012, 2:00 PM MST
- Expired
- Jan 8, 2012, 5:00 PM MST
- In force
- 3 hr
- Issued by
- NWS Phoenix, AZ
Counties La Paz County, AZ, Yuma County, AZ, Imperial County, CA, Riverside County, CA
The radar
The Yuma radar (KYUX), 93 km from the middle of the area, began a volume at 11:10 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
San Diego, CA (KNKX), launched 00:00Z, 11.1 hours before the alert went out and 230 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
- 1426 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- -62 m²/s²
- 0-3 km storm-relative helicity
- 29 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
947 WWUS85 KPSR 081104 RFWPSR URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE PHOENIX AZ 404 AM MST SUN JAN 8 2012 AZZ131-CAZ231-081900- /O.NEW.KPSR.FW.W.0001.120108T2100Z-120109T0000Z/ ARIZONA FIRE WEATHER ZONE 131 YUMA/MARTINEZ LAKE AND VICINITY/LOWER COLORADO RIVER VALLEY AZ- CALIFORNIA FIRE WEATHER ZONE 231 LOWER COLORADO RIVER VALLEY CA- 404 AM MST SUN JAN 8 2012 /304 AM PST SUN JAN 8 2012/ ...RED FLAG WARNING IN EFFECT FROM 2 PM MST /1 PM PST/ TO 5 PM MST /4 PM PST/ THIS AFTERNOON FOR STRONG WINDS...LOW RELATIVE HUMIDITY AND VERY HIGH TO EXTREME FIRE DANGER FOR THE LOWER COLORADO RIVER VALLEY... THE NATIONAL WEATHER SERVICE IN PHOENIX HAS ISSUED A RED FLAG WARNING FOR STRONG WINDS...LOW RELATIVE HUMIDITY AND VERY HIGH TO EXTREME FIRE DANGER...WHICH IS IN EFFECT FROM 2 PM MST /1 PM PST/ TO 5 PM MST /4 PM PST/ THIS AFTERNOON. * AFFECTED AREA...IN ARIZONA...YUMA/MARTINEZ LAKE AND VICINITY/LOWER COLORADO RIVER VALLEY AZ. IN CALIFORNIA...LOWER COLORADO RIVER VALLEY CA. * WINDS...FROM THE NORTH TO NORTHWEST 30 TO 35 MPH WITH GUSTS TO 45 MPH. * TIMING...NORTH TO NORTHWEST WINDS WILL INCREASE SUNDAY MORNING AND PEAK DURING THE EARLY AFTERNOON WHEN HUMIDITY VALUES ARE LOW. WINDS SHOULD SLOWLY DIMINISH AFTER 7 PM PST /8 PM MST. * RELATIVE HUMIDITY...AS LOW AS 12 PERCENT. * IMPACTS...FUELS ARE DRY AND FIRE DANGER IS VERY HIGH TO EXTREME. THESE CONDITIONS... COMBINED WITH LOW RELATIVE HUMIDITY AND STRONG WINDS WILL LEAD TO WIDESPREAD HAZARDOUS FIRE WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... PLEASE ADVISE THE APPROPRIATE OFFICIALS AND FIRE CREWS IN THE FIELD OF THIS RED FLAG WARNING. && $$ NATIONAL WEATHER SERVICE PHOENIX IS ON THE INTERNET AT WEATHER.GOV/PHOENIX
2 follow-up statements
967 WWUS85 KPSR 081856 RFWPSR URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE PHOENIX AZ 1156 AM MST SUN JAN 8 2012 AZZ131-CAZ231-090000- /O.CON.KPSR.FW.W.0001.120108T2100Z-120109T0000Z/ ARIZONA FIRE WEATHER ZONE 131 YUMA/MARTINEZ LAKE AND VICINITY/LOWER COLORADO RIVER VALLEY AZ- CALIFORNIA FIRE WEATHER ZONE 231 LOWER COLORADO RIVER VALLEY CA- 1156 AM MST SUN JAN 8 2012 /1056 AM PST SUN JAN 8 2012/ ...RED FLAG WARNING REMAINS IN EFFECT FROM 2 PM MST /1 PM PST/ UNTIL 5 PM MST /4 PM PST/ THIS AFTERNOON FOR STRONG WINDS...LOW RELATIVE HUMIDITY AND VERY HIGH TO EXTREME FIRE DANGER FOR THE LOWER COLORADO RIVER VALLEY... A RED FLAG WARNING REMAINS IN EFFECT FROM 2 PM MST /1 PM PST/ UNTIL 5 PM MST /4 PM PST/ THIS AFTERNOON. * AFFECTED AREA...IN ARIZONA...YUMA/MARTINEZ LAKE AND VICINITY/LOWER COLORADO RIVER VALLEY AZ. IN CALIFORNIA...LOWER COLORADO RIVER VALLEY CA. * WINDS...FROM THE NORTH TO NORTHWEST 30 TO 35 MPH WITH GUSTS TO 40 MPH. * TIMING...NORTH TO NORTHWEST WINDS WILL CONTINUE TODAY AND PEAK DURING THE EARLY AFTERNOON WHEN HUMIDITY VALUES ARE LOW. WINDS SHOULD SLOWLY DIMINISH AFTER 7 PM PST /8 PM MST. * RELATIVE HUMIDITY...AS LOW AS 12 PERCENT. * IMPACTS...FUELS ARE DRY AND FIRE DANGER IS VERY HIGH TO EXTREME. THESE CONDITIONS...COMBINED WITH LOW RELATIVE HUMIDITY AND STRONG WINDS WILL LEAD TO WIDESPREAD HAZARDOUS FIRE WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... PLEASE ADVISE THE APPROPRIATE OFFICIALS AND FIRE CREWS IN THE FIELD OF THIS RED FLAG WARNING. && $$ NATIONAL WEATHER SERVICE PHOENIX IS ON THE INTERNET AT WEATHER.GOV/PHOENIX
501 WWUS85 KPSR 082137 AAA RFWPSR URGENT - FIRE WEATHER MESSAGE...UPDATED NATIONAL WEATHER SERVICE PHOENIX AZ 237 PM MST SUN JAN 8 2012 AZZ131-CAZ231-090000- /O.CON.KPSR.FW.W.0001.000000T0000Z-120109T0000Z/ ARIZONA FIRE WEATHER ZONE 131 YUMA/MARTINEZ LAKE AND VICINITY/LOWER COLORADO RIVER VALLEY AZ- CALIFORNIA FIRE WEATHER ZONE 231 LOWER COLORADO RIVER VALLEY CA- 237 PM MST SUN JAN 8 2012 /137 PM PST SUN JAN 8 2012/ ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 5 PM MST /4 PM PST/ THIS AFTERNOON FOR STRONG WINDS...LOW RELATIVE HUMIDITY AND VERY HIGH TO EXTREME FIRE DANGER FOR THE LOWER COLORADO RIVER VALLEY... A RED FLAG WARNING REMAINS IN EFFECT UNTIL 5 PM MST /4 PM PST/ THIS AFTERNOON. * AFFECTED AREA...IN ARIZONA...YUMA/MARTINEZ LAKE AND VICINITY/LOWER COLORADO RIVER VALLEY AZ. IN CALIFORNIA...LOWER COLORADO RIVER VALLEY CA. * WINDS...NORTH 20 TO 25 MPH WITH GUSTS UP TO 40 MPH. * TIMING...NORTH TO NORTHWEST WINDS DURING THE EARLY AFTERNOON WILL CONTINUE WHEN HUMIDITY VALUES ARE LOW. WINDS SHOULD SLOWLY DIMINISH AFTER 7 PM PST /8 PM MST. * RELATIVE HUMIDITY...AS LOW AS 13 PERCENT. * IMPACTS...FUELS ARE DRY AND FIRE DANGER IS VERY HIGH TO EXTREME. THESE CONDITIONS...COMBINED WITH LOW RELATIVE HUMIDITY AND STRONG WINDS WILL LEAD TO WIDESPREAD HAZARDOUS FIRE WEATHER CONDITIONS. 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
The office that day
Everything else NWS Phoenix, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 8, 12:03 PM MST | Blowing Dust Advisory | PSR | 4 hr |
Nearby
Red Flag Warnings in Arizona, 2012Red Flag Warnings in California, 2012Every red flag warning in 2012
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.