Alert archive / Texas / Red Flag Warnings in 2011
Red Flag Warning 18, NWS Brownsville, TX
NWS Brownsville, TX issued this red flag warning at Nov 26, 2011, 2:11 PM CST for 8 counties in Texas. It took effect at Nov 27, 2011, 6:00 AM CST. It was in force for 12 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
- Nov 26, 2011, 2:11 PM CST (20:11 UTC)
- In effect from
- Nov 27, 2011, 6:00 AM CST
- Expired
- Nov 27, 2011, 6:00 PM CST
- In force
- 12 hr
- Issued by
- NWS Brownsville, TX
Counties Brooks County, TX, Cameron County, TX, Hidalgo County, TX, Jim Hogg County, TX, Kenedy County, TX, Starr County, TX, Willacy County, TX, Zapata County, TX
The radar
The Brownsville radar (KBRO), 118 km from the middle of the area, began a volume at 20:12 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
Brownsville Intl, TX (KBRO), launched 12:00Z, 8.2 hours before the alert went out and 120 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
- 654 J/kg
- Mixed-layer CIN
- -2 J/kg
- Mixed-layer LCL
- 452 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- 34 m²/s²
- 0-3 km storm-relative helicity
- -56 m²/s²
- Significant tornado parameter
- -0.0
- Supercell composite
- -0.1
The text
As transmitted, in the capitals the NWS used until 2016.
622 WWUS84 KBRO 262011 RFWBRO URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE BROWNSVILLE TX 211 PM CST SAT NOV 26 2011 ...COLD FRONT BRINGING CRITICAL FIRE WEATHER CONDITIONS SUNDAY... .ENHANCED TO CRITICAL FIRE WEATHER DANGER WILL OCCUR ON SUNDAY AS VERY DRY AIR AND STRONG NORTH WINDS COMBINE WITH THE EXTREMELY DRY AND ABUNDANT FUELS. RELATIVE HUMIDITY VALUES TO FALL RAPIDLY AND NORTH WINDS TO INCREASE QUICKLY SUNDAY MORNING PRODUCING VERY DANGEROUS FIRE WEATHER CONDITIONS. A RED FLAG WARNING IS IN EFFECT FOR ALL AREAS OF DEEP SOUTH TEXAS AND THE RIO GRANDE VALLEY MUCH OF THE DAY SUNDAY. TXZ248>257-270400- /O.UPG.KBRO.FW.A.0016.111127T1200Z-111128T0200Z/ /O.NEW.KBRO.FW.W.0018.111127T1200Z-111128T0000Z/ ZAPATA-JIM HOGG-BROOKS-KENEDY-STARR-HIDALGO-INLAND WILLACY- INLAND CAMERON-COASTAL WILLACY-COASTAL CAMERON- 211 PM CST SAT NOV 26 2011 ...RED FLAG WARNING IN EFFECT FROM 6 AM TO 6 PM CST SUNDAY FOR GUSTY WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONES 248...249... 250...251...252...253...254...255...256 AND 257... THE NATIONAL WEATHER SERVICE IN BROWNSVILLE HAS ISSUED A RED FLAG WARNING...WHICH IS IN EFFECT FROM 6 AM TO 6 PM CST SUNDAY. THE FIRE WEATHER WATCH IS NO LONGER IN EFFECT. * WIND...NORTHWEST TO NORTH WINDS OF 20 TO 25 MPH AT THE 20-FOOT LEVEL WILL DEVELOP ACROSS DEEP SOUTH TEXAS ON SUNDAY. WINDS GUSTS OVER 30 MPH ARE POSSIBLE. * HUMIDITY...RELATIVE HUMIDITY VALUES WILL APPROACH 20 PERCENT BY NOON FALLING BELOW 20 PERCENT THROUGH THE AFTERNOON. SOME AREAS WEST OF HIGHWAY 281 COULD SEE HUMIDITY LEVELS APPROACH 10 PERCENT. * IMPACTS...ANY FIRES THAT DEVELOP THIS WEEKEND WILL LIKELY SPREAD AND GROW RAPIDLY AND SHOW ERRATIC BEHAVIOR. OUTDOOR BURNING IS NOT RECOMMENDED. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS CRITICAL FIRE WEATHER CONDITIONS ARE OCCURRING NOW...OR WILL SHORTLY. IN GENERAL...THESE CONDITIONS INCLUDE SUSTAINED 20 FOOT WINDS OF 25 MPH OR GREATER...HUMIDITY RANGING FROM BELOW 25 PERCENT IN ZAPATA COUNTY TO BELOW 45 PERCENT ALONG THE COAST...EACH LASTING FOR 2 HOURS OR MORE... AND CURED FUELS. HUMIDITY BELOW 25 PERCENT IN MOST AREAS WILL TRIGGER FIRE DANGER AT LOWER WIND SPEEDS. DETAILED DECISION TABLES ARE FOUND AT HTTP://WEATHER.GOV/RGV/?N=MAPCOLORS#FIRE. && $$
2 follow-up statements
546 WWUS84 KBRO 270602 RFWBRO URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE BROWNSVILLE TX 1202 AM CST SUN NOV 27 2011 ...COLD FRONT BRINGING CRITICAL FIRE WEATHER CONDITIONS SUNDAY... .CRITICAL FIRE WEATHER DANGER WILL OCCUR ON SUNDAY AS VERY DRY AIR AND STRONG NORTH WINDS COMBINE WITH THE EXTREMELY DRY AND ABUNDANT FUELS. RELATIVE HUMIDITY VALUES TO FALL RAPIDLY AND MODERATE TO STRONG NORTH WINDS WILL PERSIST INTO SUNDAY PRODUCING VERY DANGEROUS FIRE WEATHER CONDITIONS. ACCORDINGLY...A RED FLAG WARNING REMAINS IN EFFECT FOR ALL AREAS OF DEEP SOUTH TEXAS AND THE RIO GRANDE VALLEY MUCH OF THE DAY SUNDAY. TXZ248>257-271500- /O.CON.KBRO.FW.W.0018.111127T1200Z-111128T0000Z/ ZAPATA-JIM HOGG-BROOKS-KENEDY-STARR-HIDALGO-INLAND WILLACY- INLAND CAMERON-COASTAL WILLACY-COASTAL CAMERON- 1202 AM CST SUN NOV 27 2011 ...RED FLAG WARNING REMAINS IN EFFECT FROM 6 AM TO 6 PM CST SUNDAY FOR GUSTY WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONES 248...249...250...251...252...253...254...255...256 AND 257... * WIND...NORTHWEST TO NORTH WINDS OF 20 TO 25 MPH AT THE 20-FOOT LEVEL WILL DEVELOP ACROSS DEEP SOUTH TEXAS ON SUNDAY. WIND GUSTS OVER 30 MPH ARE POSSIBLE. * HUMIDITY...RELATIVE HUMIDITY VALUES WILL APPROACH 20 PERCENT BY NOON FALLING BELOW 20 PERCENT THROUGH THE AFTERNOON. SOME AREAS WEST OF HIGHWAY 77 COULD SEE HUMIDITY LEVELS APPROACHING 10 PERCENT. * IMPACTS...ANY FIRES THAT DEVELOP THIS WEEKEND WILL LIKELY SPREAD AND GROW RAPIDLY AND SHOW ERRATIC BEHAVIOR. OUTDOOR BURNING IS NOT RECOMMENDED. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS CRITICAL FIRE WEATHER CONDITIONS ARE OCCURRING NOW...OR WILL SHORTLY. IN GENERAL...THESE CONDITIONS INCLUDE SUSTAINED 20 FOOT WINDS OF 25 MPH OR GREATER...HUMIDITY RANGING FROM BELOW 25 PERCENT IN ZAPATA COUNTY TO BELOW 45 PERCENT ALONG THE COAST...EACH LASTING FOR 2 HOURS OR MORE... AND CURED FUELS. HUMIDITY BELOW 25 PERCENT IN MOST AREAS WILL TRIGGER FIRE DANGER AT LOWER WIND SPEEDS. DETAILED DECISION TABLES ARE FOUND AT HTTP://WEATHER.GOV/RGV/?N=MAPCOLORS#FIRE. && $$
916 WWUS84 KBRO 271459 RFWBRO URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE BROWNSVILLE TX 859 AM CST SUN NOV 27 2011 ...CRITICAL FIRE WEATHER CONDITIONS TODAY... .CRITICAL FIRE WEATHER DANGER WILL OCCUR TODAY AS VERY DRY AIR AND STRONG NORTH WINDS COMBINE WITH THE EXTREMELY DRY AND ABUNDANT FUELS. RELATIVE HUMIDITY VALUES WILL FALL RAPIDLY AND MODERATE TO STRONG NORTH WINDS WILL CONTINUE TODAY PRODUCING VERY DANGEROUS FIRE WEATHER CONDITIONS. ACCORDINGLY...A RED FLAG WARNING REMAINS IN EFFECT FOR ALL AREAS OF DEEP SOUTH TEXAS AND THE RIO GRANDE VALLEY MUCH OF THE DAY TODAY. TXZ248>257-280000- /O.CON.KBRO.FW.W.0018.000000T0000Z-111128T0000Z/ ZAPATA-JIM HOGG-BROOKS-KENEDY-STARR-HIDALGO-INLAND WILLACY- INLAND CAMERON-COASTAL WILLACY-COASTAL CAMERON- 859 AM CST SUN NOV 27 2011 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM CST THIS EVENING FOR GUSTY WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONES 248... 249...250...251...252...253...254...255...256 AND 257... * WIND...NORTHWEST TO NORTH WINDS OF 20 TO 25 MPH AT THE 20-FOOT LEVEL WILL DEVELOP ACROSS DEEP SOUTH TEXAS ON SUNDAY. WIND GUSTS OVER 30 MPH ARE POSSIBLE. * HUMIDITY...RELATIVE HUMIDITY VALUES WILL APPROACH 20 PERCENT BY NOON FALLING BELOW 20 PERCENT THROUGH THE AFTERNOON. SOME AREAS WEST OF HIGHWAY 77 COULD SEE HUMIDITY LEVELS APPROACHING 10 PERCENT. * IMPACTS...ANY FIRES THAT DEVELOP THIS WEEKEND WILL LIKELY SPREAD AND GROW RAPIDLY AND SHOW ERRATIC BEHAVIOR. OUTDOOR BURNING IS NOT RECOMMENDED. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS CRITICAL FIRE WEATHER CONDITIONS ARE OCCURRING NOW...OR WILL SHORTLY. IN GENERAL...THESE CONDITIONS INCLUDE SUSTAINED 20 FOOT WINDS OF 25 MPH OR GREATER...HUMIDITY RANGING FROM BELOW 25 PERCENT IN ZAPATA COUNTY TO BELOW 45 PERCENT ALONG THE COAST...EACH LASTING FOR 2 HOURS OR MORE... AND CURED FUELS. HUMIDITY BELOW 25 PERCENT IN MOST AREAS WILL TRIGGER FIRE DANGER AT LOWER WIND SPEEDS. DETAILED DECISION TABLES ARE FOUND AT HTTP://WEATHER.GOV/RGV/?N=MAPCOLORS#FIRE. && $$
The office that day
Everything else NWS Brownsville, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 25, 9:07 PM CST | Gale Warning | BRO | 45 hr | |
| Nov 26, 12:30 AM CST | Small Craft Advisory | BRO | 3 hr | |
| Nov 26, 3:11 AM CST | Small Craft Advisory | BRO | 14 hr | |
| Nov 26, 3:11 AM CST | Small Craft Advisory | BRO | 24 hr | |
| Nov 26, 3:11 AM CST | Small Craft Advisory for Winds | BRO | 42 hr | |
| Nov 26, 2:06 PM CST | Freeze Watch | BRO | Brooks, Jim Hogg, Kenedy, Zapata | 24 hr |
| Nov 26, 2:06 PM CST | Wind Advisory | BRO | Brooks, Cameron, Hidalgo, Jim Hogg, Kenedy, Starr and 2 more | 10 hr |
Nearby
Red Flag Warnings in Texas, 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.