Alert archive / Texas / Red Flag Warnings in 2011
Red Flag Warning 9, NWS Brownsville, TX
NWS Brownsville, TX issued this red flag warning at May 28, 2011, 5:10 AM CDT for Jim Hogg County, Starr County, Zapata County, Texas. It took effect at May 28, 2011, 12:00 PM CDT. 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
- May 28, 2011, 5:10 AM CDT (10:10 UTC)
- In effect from
- May 28, 2011, 12:00 PM CDT
- Expired
- May 28, 2011, 7:00 PM CDT
- In force
- 7 hr
- Issued by
- NWS Brownsville, TX
Counties Jim Hogg County, TX, Starr County, TX, Zapata County, TX
The radar
The Corpus Christi radar (KCRP), 168 km from the middle of the area, began a volume at 10:16 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
Corpus Christi, TX (KCRP), launched 00:00Z, 10.2 hours before the alert went out and 179 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
- 2766 J/kg
- Mixed-layer CIN
- -296 J/kg
- Mixed-layer LCL
- 990 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 92 m²/s²
- 0-3 km storm-relative helicity
- 173 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -2.7
The text
As transmitted, in the capitals the NWS used until 2016.
612 WWUS84 KBRO 281010 RFWBRO URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE BROWNSVILLE TX 510 AM CDT SAT MAY 28 2011 ...CRITICAL FIRE WEATHER CONDITIONS EXPECTED ACROSS WESTERN DEEP SOUTH TEXAS... .THE COMBINATION OF STRONG SOUTHEAST WINDS AND FALLING RELATIVE HUMIDITY VALUES ACROSS THE WESTERN COUNTIES OF DEEP SOUTH TEXAS WILL INCREASE THE POTENTIAL FOR EXPLOSIVE FIRE GROWTH LATER THIS AFTERNOON AND INTO THE EARLY EVENING HOURS. TXZ248-249-252-281815- /O.NEW.KBRO.FW.W.0009.110528T1700Z-110529T0000Z/ ZAPATA-JIM HOGG-STARR- 510 AM CDT SAT MAY 28 2011 ...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 7 PM CDT THIS EVENING FOR GUSTY WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONES 248...249 AND 252... THE NATIONAL WEATHER SERVICE IN BROWNSVILLE HAS ISSUED A RED FLAG WARNING...WHICH IS IN EFFECT FROM NOON TODAY TO 7 PM CDT THIS EVENING. THE COMBINATION OF TH SOUTHEASTERLY 20 FOOT WINDS RANGING FROM 20 TO 25 MPH...RELATIVE HUMIDITY VALUES FALLING INTO THE 20 TO 30 PERCENT RANGE AND EXTREMELY DRY FUELS TO PRODUCE NEAR CRITICAL FIRE DANGER THIS AFTERNOON AND EARLY THIS EVENING ACROSS ZAPATA...STARR AND JIM HOGG COUNTIES. THE STRONG SOUTHEASTERLY WINDS WILL DIMINISH SOME AFTER SUNSET THIS EVENING AND THE RELATIVE HUMIDITY VALUES WILL START INCREASING. THIS WILL REDUCE THE POTENTIAL FOR FIRE GROWTH LATER TONIGHT. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS CRITICAL FIRE WEATHER CONDITIONS ARE OCCURRING NOW...OR WILL SHORTLY. THESE CONDITIONS INCLUDE SUSTAINED 20 FOOT WINDS OF 25 MPH OR GREATER AND CURED FUELS...OR THE COMBINATION OF RELATIVE HUMIDITY BELOW 35 PERCENT FOR 2 HOURS OR MORE AND SUSTAINED 20 FOOT WINDS OF 25 MPH OR HIGHER WHEN FUELS ARE NOT CURED. THESE CONDITIONS WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$
1 follow-up statement
357 WWUS84 KBRO 281805 RFWBRO URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE BROWNSVILLE TX 105 PM CDT SAT MAY 28 2011 ...CRITICAL FIRE WEATHER CONDITIONS EXPECTED ACROSS WESTERN DEEP SOUTH TEXAS... .THE COMBINATION OF STRONG SOUTHEAST WINDS AND FALLING RELATIVE HUMIDITY VALUES ACROSS THE WESTERN COUNTIES OF DEEP SOUTH TEXAS WILL INCREASE THE POTENTIAL FOR EXPLOSIVE FIRE GROWTH LATER THIS THROUGH THE EARLY EVENING HOURS. TXZ248-249-252-290000- /O.CON.KBRO.FW.W.0009.000000T0000Z-110529T0000Z/ ZAPATA-JIM HOGG-STARR- 105 PM CDT SAT MAY 28 2011 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING FOR GUSTY WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONES 248...249 AND 252 THE COMBINATION OF TH SOUTHEASTERLY 20 FOOT WINDS RANGING FROM 20 TO 25 MPH...RELATIVE HUMIDITY VALUES FALLING INTO THE 20 TO 30 PERCENT RANGE AND EXTREMELY DRY FUELS TO PRODUCE NEAR CRITICAL FIRE DANGER THIS AFTERNOON AND EARLY THIS EVENING ACROSS ZAPATA... STARR AND JIM HOGG COUNTIES. THE STRONG SOUTHEASTERLY WINDS WILL DIMINISH AFTER SUNSET THIS EVENING AND THE RELATIVE HUMIDITY VALUES WILL BEGIN TO INCREASE. THIS WILL REDUCE THE POTENTIAL FOR FIRE GROWTH LATER TONIGHT. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS CRITICAL FIRE WEATHER CONDITIONS ARE OCCURRING NOW...OR WILL SHORTLY. THESE CONDITIONS INCLUDE SUSTAINED 20 FOOT WINDS OF 25 MPH OR GREATER AND CURED FUELS...OR THE COMBINATION OF RELATIVE HUMIDITY BELOW 35 PERCENT FOR 2 HOURS OR MORE AND SUSTAINED 20 FOOT WINDS OF 25 MPH OR HIGHER WHEN FUELS ARE NOT CURED. THESE CONDITIONS WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$ MARTIN
The office that day
Everything else NWS Brownsville, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 27, 8:05 PM CDT | Small Craft Advisory for Winds | BRO | 11 hr | |
| May 27, 8:05 PM CDT | Small Craft Advisory for Winds | BRO | 24 hr | |
| May 28, 4:08 AM CDT | Small Craft Advisory | BRO | 3 days | |
| May 28, 4:22 AM CDT | Wind Advisory | BRO | Brooks, Cameron, Hidalgo, Kenedy, Willacy | 15 hr |
| May 28, 4:51 AM CDT | Rip Current Statement | BRO | Kenedy | 64 hr |
| May 28, 3:43 PM CDT | Small Craft Advisory for Winds | BRO | 28 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.