Alert archive / Texas / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 6, NWS Brownsville, TX
NWS Brownsville, TX issued this severe thunderstorm warning at May 12, 2011, 3:02 PM CDT for Brooks County, Kenedy County, Texas. It was in force for 28 min. 1 report came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- May 12, 2011, 3:02 PM CDT (20:02 UTC)
- Expired
- May 12, 2011, 3:30 PM CDT
- In force
- 28 min
- Issued by
- NWS Brownsville, TX
- Area
- Storm-based polygon
Counties Brooks County, TX, Kenedy County, TX
The radar
The Corpus Christi radar (KCRP), 76 km from the middle of the area, began a volume at 20:03 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| May 12, 3:08 PM CDT | HAIL 0.25 | Falfurrias, TX | CO-OP OBSERVER IN FALFURRIAS REPORTS PEA SIZE HAIL AND WIND GUSTS UP TO 30 MPH. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
Did it verify
Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.
Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| May 12, 7:52 AM CDT | Severe Thunderstorm Watch | SPC | 9 hr |
The nearest sounding before it
Corpus Christi, TX (KCRP), launched 12:00Z, 8.0 hours before the alert went out and 81 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
- 2980 J/kg
- Mixed-layer CIN
- 0 J/kg
- Mixed-layer LCL
- 458 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 30 m²/s²
- 0-3 km storm-relative helicity
- 108 m²/s²
- Significant tornado parameter
- 2.9
- Supercell composite
- 13.7
The text
As transmitted, in the capitals the NWS used until 2016.
940
WUUS54 KBRO 122002
SVRBRO
TXC047-261-122030-
/O.NEW.KBRO.SV.W.0006.110512T2002Z-110512T2030Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BROWNSVILLE TX
302 PM CDT THU MAY 12 2011
THE NATIONAL WEATHER SERVICE IN BROWNSVILLE HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
NORTHEASTERN BROOKS COUNTY IN DEEP SOUTH TEXAS.
NORTHWESTERN KENEDY COUNTY IN DEEP SOUTH TEXAS.
* UNTIL 330 PM CDT
* AT 301 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
SEVERE THUNDERSTORM...CAPABLE OF PRODUCING DAMAGING 60 MPH WINDS...
OVER FALFURRIAS...MOVING EAST SOUTHEAST AT 30 MPH.
* THE SEVERE THUNDERSTORM WILL BE NEAR...
EAST OF FALFURRIAS.
SARITA BY 320 PM.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
PLEASE REPORT TORNADOES OR FUNNEL CLOUDS...WINDS OF 58 MPH OR
HIGHER...HAIL THE SIZE OF PENNIES OR LARGER...AND ANY WIND DAMAGE TO
YOUR NATIONAL WEATHER SERVICE IN BROWNSVILLE BY CALLING 956-504-1432.
&&
LAT...LON 2726 9777 2706 9776 2691 9797 2724 9832
2726 9798 2722 9798 2722 9797 2724 9795
2724 9788 2725 9785 2725 9784 2726 9782
TIME...MOT...LOC 2001Z 303DEG 34KT 2716 9804
$$1 follow-up statement
730
WWUS54 KBRO 122019
SVSBRO
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BROWNSVILLE TX
319 PM CDT THU MAY 12 2011
TXC047-122026-
/O.CAN.KBRO.SV.W.0006.000000T0000Z-110512T2030Z/
BROOKS-
319 PM CDT THU MAY 12 2011
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN BROOKS COUNTY IS
CANCELLED...
LAT...LON 2721 9799 2722 9797 2724 9795 2724 9788
2725 9783 2726 9782 2726 9777 2706 9776
2691 9797
TIME...MOT...LOC 2016Z 303DEG 34KT 2708 9791
$$
TXC261-122030-
/O.CON.KBRO.SV.W.0006.000000T0000Z-110512T2030Z/
KENEDY-
319 PM CDT THU MAY 12 2011
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 330 PM CDT
FOR NORTHWESTERN KENEDY COUNTY...
AT 316 PM CDT...A WEATHER SPOTTER REPORTED IN FALFURRIAS REPORTED
PEA SIZE HAIL AND WINDS AROUND 30 MPH.
NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THE SEVERE
THUNDERSTORM WAS NOW 12 MILES SOUTHWEST OF SARITA...MOVING EAST
SOUTHEAST AT 40 MPH.
THE SEVERE THUNDERSTORM WILL BE NEAR...
SARITA AND PASSING OVER HIGHWAY 77 BETWEEN SARITA AND THE BORDER
PATROL CHECK POINT.
THE SEVERE THUNDERSTORM IS CAPABLE OF PRODUCING...DAMAGING WIND
GUSTS OF 60 TO 70 MILES AN HOUR.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THIS IS A DANGEROUS STORM.
PLEASE REPORT TORNADOES OR FUNNEL CLOUDS...WINDS OF 58 MPH OR
HIGHER...HAIL THE SIZE OF PENNIES OR LARGER...AND ANY WIND DAMAGE TO
YOUR NATIONAL WEATHER SERVICE IN BROWNSVILLE BY CALLING 956-504-1432.
&&
LAT...LON 2721 9799 2722 9797 2724 9795 2724 9788
2725 9783 2726 9782 2726 9777 2706 9776
2691 9797
TIME...MOT...LOC 2016Z 303DEG 34KT 2708 9791
$$
59What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Brownsville, TX wrote its last area forecast discussion before this severe thunderstorm warning went out at May 12, 1:31 PM CDT, 1 hour 31 minutes earlier.
Area forecast discussion, May 12, 1:31 PM CDT, 1 hour 31 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE BROWNSVILLE TX 131 PM CDT THU MAY 12 2011 .NEAR TERM...WW288 WILL EXPIRE AT 3 PM. WILL COORD WITH SPC IN THE EVENT A NEW WW WILL BE NEEDED FURTHER SOUTH LATER THIS AFTERNOON. SO FAR RECENT TRENDS FROM BOTH CRP AND BRO RADARS INDICATE THAT THE SOUTH END OF THE CONV LINE MOVING TOWARDS THE COASTLINE HAS BEEN GRADUALLY WEAKENING AS IS PUSHES ESE. HOWEVER THE CELLS AT THE SOUTHERNMOST END OF THE LINE OVER SOUTHERN WEBB COUNTY REMAINS PRETTY POTENT AND MAY REQUIRE AN SVR T-STORM WARNING FOR EITHER ZAPATA OR JIM HOGG COUNTIES. A QUICK LOOK AT THE LAPS CAPE VALUES INDICATES THAT THIS WEAKENING MAY BE DUE TO THE CELLS MOVING INTO A LITTLE MORE STABLE AIR POOLING OVER THE WESTERN PORTIONS OF THE BRO CWA. HOWEVER VSBL SATL IMAGERY SHOWS THAT THE CLD COVER SOUTH OF THE CONV HAS MIXED OUT ALLOWING FOR BETTER DAYTIME HEATING OVER THE REGION WHICH COULD DESTABILIZE THE ATMS ONCE AGAIN DURING THE AFTERNOON HOURS. IF ENOUGH DESTABILIZATION OCCURS OVER THE NEXT SEVERAL HOURS AND THE CONV TO OUR NORTH LAYS OUT SOME STRONG OUTFLOW BOUNDARIES ADDITIONAL STRONG CONV MAY REFORM OVER THE NEXT SEVERAL HOURS. ACCORDINGLY WILL MAINTAIN FAIRLY HIGH POPS DURING THE NEXT 2 TO 4 HOURS WITH POPS THEN DROPPING QUITE A BIT LATER THIS EVENING AS THE CONV CLEARS THE REGION AND MORE STABLE OUTFLOW DOMINATES. && .SHORT TERM /TONIGHT THROUGH FRIDAY NIGHT/...THERE IS A SLIGHT CHANCE FOR SHOWERS AND ISOLATED THUNDERSTORMS MOVING ACROSS PORTIONS OF DEEP SOUTH TEXAS OVERNIGHT TONIGHT. THE RAIN CHANCES DIMINISH ON FRIDAY. THE WINDS WILL CONTINUE LIGHT TO MODERATE FROM THE SOUTHEAST THROUGH FRIDAY MORNING. A WEAK COLD FRONT WILL MOVE THROUGH DEEP SOUTH TEXAS ON FRIDAY SHIFTING THE WINDS TO THE NORTH. HOWEVER THE WINDS WILL REMAIN LIGHT TO MODERATE FROM THE NORTH BEHIND THE FRONT THROUGH SATURDAY MORNING. THE TEMPERATURES WILL BE A LITTLE COOLER THE NEXT FEW DAYS DUE TO INCREASED CLOUDINESS AND IN THE WAKE OF THE FRONT. HOWEVER THE TEMPERATURES WILL REMAIN ABOVE NORMAL. && .LONG TERM...MID LEVEL AND SURFACE RIDGING WILL BECOME MORE ESTABLISHED OVER THE REGION LATER IN THE FORECAST PERIOD. FORTUNATELY THE 1000-500 MB THICKNESSES WILL BE SHALLOWER COMPARITIVELY TO THE LAST COUPLE OF WEEKS WHICH WILL IN TURN ALLOW OVERALL TEMPS TO REMAIN NEAR TO BELOW CLIMO FOR MID MAY. WILL MAINTAIN NIL POPS FOR THE MOMENT AS OVERALL MOISTURE VALUES REMAIN PRETTY LIMITED ACROSS THE REGION. && .MARINE...TONIGHT THROUGH FRIDAY NIGHT...THERE IS A SLIGHT CHANCE FOR SHOWERS AND ISOLATED THUNDERSTORMS MOVING ACROSS PORTIONS OF THE MARINE AREAS TONIGHT IN ADVANCE OF A WEAK COLD FRONT WHICH WILL MOVE THROUGH THE COASTAL WATERS FRIDAY. THE WINDS AND SEAS WILL INCREASE IN OR NEAR ANY SHOWERS OR THUNDERSTORMS. ONCE THE FRONT PASSES THE WINDS WILL SHIFT TO THE NORTH. HOWEVER THE WINDS WILL CONTINUE MODERATE AND MODERATE SEAS WILL PREVAIL ACROSS THE MARINE AREAS FOR THE NEXT FEW DAYS. IN THE EXTENDED RANGE PERIOD THE PGF WILL REMAIN FAIRLY WEAK WHICH WILL ALLOW GENERALLY BENIGN WINDS AND SEAS TO PREVAIL. NO SCA CONDITIONS EXPECTED AT THIS TIME. && .PRELIMINARY POINT TEMPS/POPS... BAYVIEW/PORT ISABEL 77 89 73 86 / 30 10 0 0 BROWNSVILLE 76 91 72 89 / 30 10 0 0 HARLINGEN 77 94 71 90 / 30 10 0 0 MCALLEN 77 96 72 92 / 30 10 0 0 RIO GRANDE CITY 76 98 71 93 / 30 10 0 0 SOUTH PADRE ISLAND 77 85 75 80 / 30 10 0 0 && .BRO WATCHES/WARNINGS/ADVISORIES... TX...NONE. GM...NONE. && THIS PRODUCT IS ALSO AVAILABLE ON THE WEB AT: HTTP://WWW.WEATHER.GOV/BROWNSVILLE SHORT TERM...64 LONG TERM...60 GRAPHICAST/UPPER AIR...MARTINEZ/58
Hazardous weather outlook, May 12, 8:15 AM CDT, 6 hours 47 minutes before
HAZARDOUS WEATHER OUTLOOK...UPDATE NATIONAL WEATHER SERVICE BROWNSVILLE TX 815 AM CDT THU MAY 12 2011 TXZ248>257-1311000- ZAPATA-JIM HOGG-BROOKS-KENEDY-STARR-HIDALGO-INLAND WILLACY- INLAND CAMERON-COASTAL WILLACY-COASTAL CAMERON- 815 AM CDT THU MAY 12 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR DEEP SOUTH TEXAS. .DAY ONE...REST OF TODAY AND TONIGHT. SEVERE THUNDERSTORM WATCH 288 IS IN EFFECT UNTIL 3 PM THIS AFTERNOON FOR ZAPATA...JIM HOGG...BROOKS AND KENEDY COUNTIES. ISOLATED SEVERE THUNDERSTORMS MAY DEVELOP LATER THIS MORNING INTO THE EARLY AFTERNOON HOURS PRODUCING BRIEF WIND GUSTS UP TO 60 AND SOME POSSIBLE LARGE HAIL. THERE IS A HIGH RISK OF RIP CURRENTS POSSIBLE AT THE BEACHES OF SOUTH PADRE ISLAND AND BOCA CHICA. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY. AN ELEVATED RISK OF RIP CURRENTS WILL BE POSSIBLE AT THE LOCAL BEACHES THROUGH SATURDAY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE NEEDED IN ZAPATA...JIM HOGG...BROOKS AND KENEDY COUNTIES THROUGH THIS AFTERNOON. GMZ130-132-135-150-155-170-175-131100- LAGUNA MADRE FROM THE PORT OF BROWNSVILLE TO THE ARROYO COLORADO- LAGUNA MADRE FROM THE ARROYO COLORADO TO 5 NM NORTH OF PORT MANSFIELD TX- LAGUNA MADRE FROM 5 NM NORTH OF PORT MANSFIELD TO BAFFIN BAY TX- COASTAL WATERS FROM PORT MANSFIELD TO THE RIO GRANDE OUT 20 NM- COASTAL WATERS FROM BAFFIN BAY TO PORT MANSFIELD OUT 20 NM- WATERS FROM PORT MANSFIELD TO THE RIO GRANDE EXTENDING FROM 20 TO 60 NM- WATERS FROM BAFFIN BAY TO PORT MANSFIELD EXTENDING FROM 20 TO 60 NM- 815 AM CDT THU MAY 12 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE GULF OF MEXICO AND THE LAGUNA MADRE. .DAY ONE...REST OF TODAY AND TONIGHT. ISOLATED TO SCATTERED INTENSE THUNDERSTORMS MAY BE POSSIBLE ACROSS THE LOWER TEXAS BAY AND GULF WATERS POSSIBLY PRODUCING HAIL...BRIEF WIND GUSTS UP TO 34 KNOTS AND BRIEF HEAVY RAIN. THE BEST POTENTIAL FOR INTENSE TO SEVERE THUNDERSTORMS WILL BE ACROSS THE BAY AND GULF WATERS OF KENEDY COUNTY THROUGH 3 PM THIS AFTERNOON. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED.
In the hours before
Special weather statement, May 12, 12:23 PM CDT, 2 hours 39 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BROWNSVILLE TX 1223 PM CDT THU MAY 12 2011 TXZ248>251-121930- ZAPATA-JIM HOGG-BROOKS-KENEDY- INCLUDING THE CITIES OF...ZAPATA...HEBBRONVILLE...FALFURRIAS... SARITA 1223 PM CDT THU MAY 12 2011 ...INTENSE THUNDERSTORMS APPROACHING DEEP SOUTH TEXAS... AT MIDDAY...AN AREA OF THUNDERSTORMS FROM NEAR LAREDO EXTENDING NORTHEAST TO NEAR BEEVILLE WAS MOVING SOUTHEAST AT 15 TO 20 MPH. THE STRONGEST OF THESE THUNDERSTORMS WILL PUSH INTO ZAPATA COUNTY AROUND 1 PM AND INTO JIM HOGG AND BROOKS COUNTIES BETWEEN 1 AND 2 PM. THESE THUNDERSTORMS WILL PRODUCE FREQUENT LIGHTNING...LOCALLY HEAVY DOWNPOURS...POSSIBLE HAIL AND WIND GUSTS FROM 40 TO 50 MPH. A SEVERE THUNDERSTORM WILL BE POSSIBLE ESPECIALLY IN ZAPATA COUNTY THROUGH 2 PM. A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT FOR ZAPATA...JIM HOGG...BROOKS AND KENEDY COUNTIES THROUGH 3 PM THIS AFTERNOON. STAY TUNED TO NOAA WEATHER RADIO OR YOUR LOCAL MEDIA FOR FURTHER UPDATES CONCERNING THIS DEVELOPING WEATHER SITUATION. SPEECE
Special weather statement, May 12, 2:28 PM CDT, 34 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BROWNSVILLE TX 228 PM CDT THU MAY 12 2011 TXZ248>252-122100- ZAPATA-JIM HOGG-BROOKS-KENEDY-STARR- INCLUDING THE CITIES OF...ZAPATA...HEBBRONVILLE...FALFURRIAS... SARITA...RIO GRANDE CITY...ROMA 228 PM CDT THU MAY 12 2011 ...STRONG THUNDERSTORMS DEVELOPING AND APPROACHING... NATIONAL WEATHER SERVICE DOPPLER RADAR IN BROWNSVILLE CONTINUES TO TRACK THUNDERSTORMS THAT ARE DEVELOPING OVER ZAPATA...JIM HOGG... AND BROOKS COUNTY. THESE THUNDERSTORMS...SOME POSSIBLY STRONG TO SEVERE...WILL HAVE THE POTENTIAL TO ALSO AFFECT STARR AND KENEDY COUNTY THROUGH THE NEXT COUPLE OF HOURS. FREQUENT LIGHTNING...LOCALLY HEAVY RAINFALL WITH FLOODING IN LOW LYING OR POORLY DRAINING AREAS...HAIL UP TO THE SIZE OF A QUARTER... WIND GUSTS UP TO 50 MPH...AND POSSIBLE ISOLATED TORNADOES WILL ACCOMPANY THE THUNDERSTORM ACTIVITY AS IT MOVES ACROSS THE NORTHERN HALF OF DEEP SOUTH TEXAS. A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT FOR ZAPATA...JIM HOGG ...BROOKS AND KENEDY COUNTY THROUGH 3 PM THIS AFTERNOON. STAY TUNED TO NOAA WEATHER RADIO OR YOUR LOCAL MEDIA FOR FURTHER UPDATES CONCERNING THIS DEVELOPING WEATHER SITUATION. TOMASELLI
The office that day
Everything else NWS Brownsville, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 12, 2:34 PM CDT | Severe Thunderstorm Warning | BRO | Brooks | 26 min |
| May 12, 2:46 PM CDT | Areal Flood Advisory | BRO | Brooks | 59 min |
| May 12, 3:00 PM CDT | Special Marine Warning | BRO | 2 hr | |
| May 12, 3:17 PM CDT | Flash Flood Warning | BRO | Brooks | 63 min |
| May 12, 3:27 PM CDT | Areal Flood Advisory | BRO | Kenedy | 63 min |
| May 12, 3:29 PM CDT | Severe Thunderstorm Warning | BRO | Brooks, Kenedy | 46 min |
| May 12, 3:35 PM CDT | Severe Thunderstorm Warning | BRO | Kenedy | 40 min |
| May 12, 4:11 PM CDT | Severe Thunderstorm Warning | BRO | Kenedy | 19 min |
| May 12, 4:25 PM CDT | Areal Flood Advisory | BRO | Kenedy | 65 min |
| May 12, 4:30 PM CDT | Areal Flood Advisory | BRO | Willacy | 60 min |
| May 12, 4:55 PM CDT | Special Marine Warning | BRO | 2 hr | |
| May 12, 5:07 PM CDT | Areal Flood Advisory | BRO | Hidalgo | 53 min |
| May 12, 6:50 PM CDT | Special Marine Warning | BRO | 85 min |
Nearby
Severe Thunderstorm Warnings in Texas, 2011Every severe thunderstorm 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.