Alert archive / Texas / Red Flag Warnings in 2011
Red Flag Warning 5, NWS Brownsville, TX
NWS Brownsville, TX issued this red flag warning at Apr 10, 2011, 1:56 PM CDT for 8 counties in Texas. It took effect at Apr 11, 2011, 10:00 AM CDT. It was in force for 11 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 10, 2011, 1:56 PM CDT (18:56 UTC)
- In effect from
- Apr 11, 2011, 10:00 AM CDT
- Expired
- Apr 11, 2011, 9:00 PM CDT
- In force
- 11 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 18:59 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
Brownsville Intl, TX (KBRO), launched 12:00Z, 6.9 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
- 373 J/kg
- Mixed-layer CIN
- -702 J/kg
- Mixed-layer LCL
- 556 m above ground
- 0-6 km bulk shear
- 14 kt
- 0-1 km storm-relative helicity
- 30 m²/s²
- 0-3 km storm-relative helicity
- 81 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
359 WWUS84 KBRO 101856 RFWBRO URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE BROWNSVILLE TX 156 PM CDT SUN APR 10 2011 ...RAPID TO POTENTIALLY EXPLOSIVE WILDFIRE BEHAVIOR MONDAY AFTERNOON... .A FRONT WILL BRING ANOTHER SURGE OF EXTREMELY DRY AIR AND GUSTY WINDS TO THE MIDDLE AND UPPER RIO GRANDE VALLEY...THE RIO GRANDE PLAINS...AND THE DEEP SOUTH TEXAS BRUSH COUNTRY ON MONDAY. THESE CONDITIONS WILL COMBINE WITH CRITICALLY DRY FUELS FOR A SIGNIFICANT THREAT FOR DANGEROUS GROWTH RATES FOR ANY FIRES MONDAY AFTERNOON. TXZ248>250-252-253-111000- /O.UPG.KBRO.FW.A.0006.110411T1700Z-110411T2300Z/ /O.NEW.KBRO.FW.W.0005.110411T1500Z-110411T2300Z/ ZAPATA-JIM HOGG-BROOKS-STARR-HIDALGO- 156 PM CDT SUN APR 10 2011 ...RED FLAG WARNING IN EFFECT FROM 10 AM TO 6 PM CDT MONDAY FOR GUSTY WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONES 248...249... 250...252 AND 253... THE NATIONAL WEATHER SERVICE IN BROWNSVILLE HAS ISSUED A RED FLAG WARNING...WHICH IS IN EFFECT FROM 10 AM TO 6 PM CDT MONDAY. THE FIRE WEATHER WATCH IS NO LONGER IN EFFECT. HUMIDITY: BETWEEN 10 AM AND NOON MONDAY...RELATIVE HUMIDITY WILL FALL BELOW 25 PERCENT AND CONTINUE FALLING THROUGH THE AFTERNOON...REACHING 5 TO 10 PERCENT IN ZAPATA...STARR...AND JIM HOGG COUNTY...AND 10 TO 15 PERCENT IN MOST OF BROOKS AND HIDALGO COUNTY. WIND: 20 FOOT WINDS WILL INCREASE FROM THE NORTH SHORTLY AFTER DAYBREAK...AND CONTINUE AT 20 TO 25 MPH WITH GUSTS TO 30 MPH IN EXPOSED AREAS UNTIL 2 PM...DIMINISHING TO 15 TO 20 MPH WITH GUSTS TO 25 MPH FOR THE REMAINDER OF THE AFTERNOON. FUELS: ALL ONE AND TEN HOUR FUELS ARE HIGHLY TO EXTREMELY CURED. DROUGHT: THE ENTIRE AREA IS EXPERIENCING AN EXTREME HYDROLOGIC DROUGHT. 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. && $$ TXZ251-254>257-111000- /O.NEW.KBRO.FW.A.0007.110411T1900Z-110411T2300Z/ KENEDY-INLAND WILLACY-INLAND CAMERON-COASTAL WILLACY- COASTAL CAMERON- 156 PM CDT SUN APR 10 2011 ...FIRE WEATHER WATCH IN EFFECT MONDAY AFTERNOON FOR GUSTY WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONES 251...254...255...256 AND 257... THE NATIONAL WEATHER SERVICE IN BROWNSVILLE HAS ISSUED A FIRE WEATHER WATCH...WHICH IS IN EFFECT MONDAY AFTERNOON. HUMIDITY: BETWEEN NOON AND 4 PM...RELATIVE HUMIDITY WILL FALL BETWEEN 25 AND 30 PERCENT OVER THE WESTERN PORTIONS OF CAMERON WILLACY AND KENEDY COUNTIES. IMMEDIATE COASTAL AREAS WILL SEE HUMIDITY LOWER BETWEEN 35 AND 40 PERCENT IN THE AFTERNOON. WIND: 20 FOOT WINDS WILL INCREASE FROM THE NORTH TO AROUND 20 MPH WITH GUSTS OF 25 TO 30 MPH IN THE AFTERNOON. WINDS TO DIMINISH QUICKLY TO 15 MPH OR LESS WITH A FEW GUSTS TO 20 MPH AFTER 5 PM. FUELS: ALL ONE AND TEN HOUR FUELS ARE HIGHLY TO EXTREMELY CURED. DROUGHT: THE ENTIRE AREA IS EXPERIENCING AN SEVERE TO EXTREME HYDROLOGIC DROUGHT. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FIRE WEATHER WATCH MEANS CRITICAL FIRE WEATHER CONDITIONS ARE FORECAST TO OCCUR. THESE CONDITIONS INCLUDE SUSTAINED 20 FOOT WINDS OF 25 MPH OR GREATER AND CURED FUELS...OR THE COMBINATION OF RELATIVE HUMIDITY BELOW 35 PERCENT FOR 2 HOURS OR MORE AND SUSTAINED 20 FOOT WINDS OF 25 MPH OR HIGHER WHEN FUELS ARE NOT CURED. LISTEN FOR LATER FORECASTS AND POSSIBLE RED FLAG WARNINGS. && $$ GB
2 follow-up statements
113 WWUS84 KBRO 111121 RFWBRO URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE BROWNSVILLE TX 621 AM CDT MON APR 11 2011 ...RAPID TO POTENTIALLY EXPLOSIVE WILDFIRE BEHAVIOR TODAY... .A FRONT WILL BRING ANOTHER SURGE OF EXTREMELY DRY AIR AND GUSTY WINDS TO THE MIDDLE AND UPPER RIO GRANDE VALLEY...THE RIO GRANDE PLAINS...AND THE DEEP SOUTH TEXAS BRUSH COUNTRY TODAY. THESE CONDITIONS WILL COMBINE WITH CRITICALLY DRY FUELS FOR A SIGNIFICANT THREAT FOR DANGEROUS GROWTH RATES FOR ANY FIRES LATE THIS MORNING THROUGH THIS AFTERNOON.. TXZ251-254>257-111930- /O.UPG.KBRO.FW.A.0007.110411T1900Z-110411T2300Z/ /O.EXA.KBRO.FW.W.0005.110411T1500Z-110411T2300Z/ KENEDY-INLAND WILLACY-INLAND CAMERON-COASTAL WILLACY- COASTAL CAMERON- 621 AM CDT MON APR 11 2011 ...RED FLAG WARNING IN EFFECT FROM 10 AM THIS MORNING TO 6 PM CDT THIS EVENING FOR GUSTY WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONES 251...254...255...256 AND 257... THE NATIONAL WEATHER SERVICE IN BROWNSVILLE HAS ISSUED A RED FLAG WARNING...WHICH IS IN EFFECT FROM 10 AM THIS MORNING TO 6 PM CDT THIS EVENING. THE FIRE WEATHER WATCH IS NO LONGER IN EFFECT. HUMIDITY: VALUES WILL FALL INTO THE TEENS TO MID 20 PERCENT RANGE BY LATE THIS MORNING THROUGH THIS AFTERNOON ACROSS INLAND PORTIONS OF THE COASTAL COUNTIES. VALUES BETWEEN 35 AND 55 PERCENT WILL BE POSSIBLE THROUGH THE AFTERNOON ACROSS LOCALES AT THE COAST. WIND: 20 FOOT WINDS WILL INCREASE FROM THE NORTH TO AROUND 20 MPH WITH GUSTS OF 25 TO 30 MPH IN THE AFTERNOON. WINDS TO DIMINISH QUICKLY TO 15 MPH OR LESS WITH A FEW GUSTS TO 20 MPH AFTER 5 PM. FUELS: ALL ONE AND TEN HOUR FUELS ARE HIGHLY TO EXTREMELY CURED. DROUGHT: THE ENTIRE AREA IS EXPERIENCING AN SEVERE TO EXTREME HYDROLOGIC DROUGHT. 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. && $$ TXZ248>250-252-253-111930- /O.CON.KBRO.FW.W.0005.110411T1500Z-110411T2300Z/ ZAPATA-JIM HOGG-BROOKS-STARR-HIDALGO- 621 AM CDT MON APR 11 2011 ...RED FLAG WARNING REMAINS IN EFFECT FROM 10 AM THIS MORNING TO 6 PM CDT THIS EVENING FOR GUSTY WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONES 248...249...250...252 AND 253... A RED FLAG WARNING REMAINS IN EFFECT FROM 10 AM THIS MORNING TO 6 PM CDT THIS EVENING. HUMIDITY: PERCENTAGES WILL FALL INTO THE SINGLE DIGITS TO LOW TEENS LATE THIS MORNING AND PERSIST THROUGH THE AFTERNOON. WIND: 20 FOOT WINDS WILL INCREASE FROM THE NORTH THIS MORNING TO AROUND 20 TO 25 MPH WITH GUSTS TO 30 MPH IN EXPOSED AREAS UNTIL 2 PM...DIMINISHING TO 15 TO 20 MPH WITH GUSTS TO 25 MPH FOR THE REMAINDER OF THE AFTERNOON. FUELS: ALL ONE AND TEN HOUR FUELS ARE HIGHLY TO EXTREMELY CURED. DROUGHT: THE ENTIRE AREA IS EXPERIENCING AN EXTREME HYDROLOGIC DROUGHT. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS CRITICAL FIRE WEATHER CONDITIONS ARE OCCURRING NOW...OR WILL SHORTLY. THESE CONDITIONS INCLUDE SUSTAINED 20 FOOT WINDS OF 25 MPH OR GREATER AND CURED FUELS...OR THE COMBINATION OF RELATIVE HUMIDITY BELOW 35 PERCENT FOR 2 HOURS OR MORE AND SUSTAINED 20 FOOT WINDS OF 25 MPH OR HIGHER WHEN FUELS ARE NOT CURED. THESE CONDITIONS WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$ RV
365 WWUS84 KBRO 112249 RFWBRO URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE BROWNSVILLE TX 549 PM CDT MON APR 11 2011 ...RAPID TO POTENTIALLY EXPLOSIVE WILDFIRE BEHAVIOR CONTINUES LATE THIS AFTERNOON INTO THIS EVENING... .EXTREMELY DRY AIR AND STRONG WINDS CONTINUE ACROSS DEEP SOUTH TEXAS LATE THIS AFTERNOON IN COMBINATION WITH CRITICALLY DRY FUELS WILL CONTINUE TO PROVIDE A SIGNIFICANT THREAT FOR DANGEROUS GROWTH RATES FOR ANY FIRES LATE THIS AFTERNOON THROUGH EARLY THIS EVENING. TXZ248>257-120200- /O.EXT.KBRO.FW.W.0005.000000T0000Z-110412T0200Z/ ZAPATA-JIM HOGG-BROOKS-KENEDY-STARR-HIDALGO-INLAND WILLACY- INLAND CAMERON-COASTAL WILLACY-COASTAL CAMERON- 549 PM CDT MON APR 11 2011 ...RED FLAG WARNING NOW IN EFFECT UNTIL 9 PM CDT THIS EVENING FOR GUSTY WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONES 248...249... 250...252 AND 253... THE RED FLAG WARNING IS NOW IN EFFECT UNTIL 9 PM CDT THIS EVENING. HUMIDITY: RELATIVE HUMIDITY VALUES REMAIN IN THE SINGLE DIGITS TO LOW TEENS LATE THIS AFTERNOON AND WILL INCREASE SLIGHTLY EARLY THIS EVENING. WIND: 20 FOOT WINDS FROM THE NORTH AROUND 20 MPH WITH GUSTS TO 25 MPH IN EXPOSED AREAS WILL CONTINUE LATE THIS AFTERNOON DIMINISHING TO 15 TO 20 MPH EARLY THIS EVENING. FUELS: ALL ONE AND TEN HOUR FUELS ARE HIGHLY TO EXTREMELY CURED. DROUGHT: THE ENTIRE AREA IS EXPERIENCING SEVERE TO EXTREME HYDROLOGIC DROUGHT. 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. && $$ CASTILLO
The office that day
Everything else NWS Brownsville, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 10, 3:57 AM CDT | Wind Advisory | BRO | Cameron, Kenedy, Willacy | 14 hr |
| Apr 10, 4:03 AM CDT | Small Craft Advisory for Winds | BRO | 21 hr | |
| Apr 10, 4:28 AM CDT | Fire Weather Watch | BRO | Brooks, Hidalgo, Jim Hogg, Starr, Zapata | 9 hr |
| Apr 10, 1:43 PM CDT | Small Craft Advisory | BRO | 3 hr | |
| Apr 10, 1:56 PM CDT | Fire Weather Watch | BRO | Cameron, Kenedy, Willacy | 16 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.