Alert archive / Texas / Red Flag Warnings in 2012
Red Flag Warning 2, NWS San Angelo, TX
NWS San Angelo, TX issued this red flag warning at Feb 20, 2012, 4:02 AM CST for 5 counties in Texas. It took effect at Feb 20, 2012, 1:00 PM CST. It was in force for 5 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
- Feb 20, 2012, 4:02 AM CST (10:02 UTC)
- In effect from
- Feb 20, 2012, 1:00 PM CST
- Expired
- Feb 20, 2012, 6:00 PM CST
- In force
- 5 hr
- Issued by
- NWS San Angelo, TX
Counties Fisher County, TX, Haskell County, TX, Jones County, TX, Nolan County, TX, Throckmorton County, TX
The radar
The Dyess AFB radar (KDYX), 71 km from the middle of the area, began a volume at 10:08 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
Midland Regional, TX (KMAF), launched 00:00Z, 10.0 hours before the alert went out and 235 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
- 1853 m above ground
- 0-6 km bulk shear
- 60 kt
- 0-1 km storm-relative helicity
- 98 m²/s²
- 0-3 km storm-relative helicity
- 190 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
855 WWUS84 KSJT 201002 RFWSJT URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE SAN ANGELO TX 402 AM CST MON FEB 20 2012 ...DANGEROUS FIRE WEATHER CONDITIONS IN PORTIONS OF THE BIG COUNTRY THIS AFTERNOON... .A STRONG SURFACE LOW PRESSURE SYSTEM IN SOUTHEAST COLORADO WILL BRING SOUTHWEST TO WEST WINDS TODAY. AS DRY WESTERLY AIR MOVES INTO THE REGION THIS AFTERNOON...RH VALUES FALL INTO THE 13 TO 19 PERCENT RANGE AFTER 1 PM. THIS WILL PRODUCE CRITICAL FIRE WEATHER CONDITIONS...MAINLY ALONG...WEST AND NORTH OF A SWEETWATER....ANSON... THROCKMORTON LINE THIS AFTERNOON. WINDS SUBSIDE TOWARD SUNSET. TXZ049-054-098-099-113-202215- /O.NEW.KSJT.FW.W.0002.120220T1900Z-120221T0000Z/ FISHER-NOLAN-HASKELL-THROCKMORTON-JONES- 402 AM CST MON FEB 20 2012 ...RED FLAG WARNING IN EFFECT FROM 1 PM THIS AFTERNOON TO 6 PM CST THIS EVENING. THE NATIONAL WEATHER SERVICE IN SAN ANGELO HAS ISSUED A RED FLAG WARNING...WHICH IS IN EFFECT FROM 1 PM THIS AFTERNOON TO 6 PM CST THIS EVENING. * AFFECTED AREA: IN TEXAS...FISHER...NOLAN...HASKELL... THROCKMORTON...JONES. * WIND: SUSTAINED WEST WINDS...20 TO 25 MPH...WITH GUSTS TO 40 MPH. * HUMIDITY: 13 TO 19 PERCENT * IMPACTS: FAVORABLE CONDITIONS FOR WIND DRIVEN WILDFIRES. * TIMING: 1 PM TO 6 PM. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$ FOR MORE INFORMATION FROM THE NATIONAL WEATHER SERVICE VISIT... HTTP://WWW.SRH.NOAA.GOV/SJT 04
2 follow-up statements
482 WWUS84 KSJT 202141 RFWSJT URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE SAN ANGELO TX 341 PM CST MON FEB 20 2012 ...DANGEROUS FIRE WEATHER CONDITIONS IN PORTIONS OF THE BIG COUNTRY THIS AFTERNOON... .A STRONG SURFACE LOW PRESSURE SYSTEM IN SOUTHEAST COLORADO WILL BRING SOUTHWEST TO WEST WINDS TODAY. DRY WESTERLY AIR WILL CONTINUE TO MOVE INTO THE REGION LATE THIS AFTERNOON...RH VALUES HAVE FALLEN BELOW 20 PERCENT AND SUSTAINED WINDS HAVE APPROACHED 30 MPH. THIS WILL PRODUCE CRITICAL FIRE WEATHER CONDITIONS...MAINLY ALONG AND WEST OF A LINE FROM SWEETWATER TO THROCKMORTON. WINDS SUBSIDE AROUND SUNSET. TXZ049-054-098-099-113-210000- /O.CON.KSJT.FW.W.0002.000000T0000Z-120221T0000Z/ FISHER-NOLAN-HASKELL-THROCKMORTON-JONES- 341 PM CST MON FEB 20 2012 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM CST THIS EVENING FOR STRONG WINDS AND LOW RELATIVE HUMIDITY FOR NORTHWESTERN BIG COUNTRY... * AFFECTED AREA: IN TEXAS...FISHER...NOLAN...HASKELL... THROCKMORTON...JONES. * WIND: SUSTAINED WEST WINDS...20 TO 30 MPH...WITH GUSTS TO 40 MPH. * HUMIDITY: 15 TO 20 PERCENT * IMPACTS: FAVORABLE CONDITIONS FOR WIND DRIVEN WILDFIRES. * TIMING: 1 PM TO 6 PM. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$ FOR MORE INFORMATION FROM THE NATIONAL WEATHER SERVICE VISIT... HTTP://WWW.SRH.NOAA.GOV/SJT
748 WWUS84 KSJT 210010 RFWSJT URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE SAN ANGELO TX 610 PM CST MON FEB 20 2012 ...RED FLAG WARNING HAS EXPIRED FOR THE NORTHWESTERN BIG COUNTRY... .WINDS ARE SUBSIDING ACROSS THE BIG COUNTRY AND HAVE DROPPED BELOW RED FLAG CRITERIA. THE RED FLAG WARNING HAS BEEN ALLOWED TO EXPIRE. TXZ049-054-098-099-113-210115- /O.EXP.KSJT.FW.W.0002.000000T0000Z-120221T0000Z/ FISHER-NOLAN-HASKELL-THROCKMORTON-JONES- 610 PM CST MON FEB 20 2012 ...RED FLAG WARNING HAS EXPIRED FOR THE NORTHWESTERN BIG COUNTRY FOR FIRE WEATHER ZONES 049...054...098...099 AND 113... $$
The office that day
Everything else NWS San Angelo, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 20, 4:02 AM CST | Lake Wind Advisory | SJT | Haskell, Jones, Nolan, Taylor | 14 hr |
Nearby
Red Flag Warnings in Texas, 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.