Alert archive / Texas / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 99, NWS Brownsville, TX
NWS Brownsville, TX issued this severe thunderstorm warning at Dec 4, 2012, 11:38 PM CST for Cameron County, Willacy County, Texas. It was in force for 52 min. 3 reports 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
- Dec 4, 2012, 11:38 PM CST (05:38 UTC)
- Expired
- Dec 5, 2012, 12:30 AM CST
- In force
- 52 min
- Issued by
- NWS Brownsville, TX
- Area
- Storm-based polygon
Counties Cameron County, TX, Willacy County, TX
The radar
The Brownsville radar (KBRO), 66 km from the middle of the area, began a volume at 05:40 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 |
|---|---|---|---|
| Dec 4, 11:45 PM CST | TSTM WND GST 60 | Raymondville, TX | RAYMONDVILLE PD ESTIMATES 60MPH WIND WHEN STORM CAME THROUGH. |
| Dec 4, 11:48 PM CST | TSTM WND DMG | 5 W Raymondville, TX | BARN DESTROYED A FEW MILES WEST OF RAYMONDVILLE CRUSHING A CAR. WINDS ESTIMATED AT 70 TO 80 MPH. HAIL WAS HEARD BUT SIZE UNKNOWN. |
| Dec 5, 12:05 AM CST | TSTM WND DMG | 2 W Raymondville, TX | THE PRECINCT 1 GARAGE WEST OF RAYMONDVILLE ON HIGHWAY 186 SUSTAINED HEAVY DAMAGE FROM STRAIGHT LINE THUNDERSTORM WINDS. THE GARAGE DOORS WERE BLOWN DOWN AND A SECTION OF HURRICANE FENCING NEAR THE GARAGE WAS ALSO BLOWN DOWN. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Brownsville Intl, TX (KBRO), launched 00:00Z, 5.6 hours before the alert went out and 68 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
- 2273 J/kg
- Mixed-layer CIN
- -25 J/kg
- Mixed-layer LCL
- 879 m above ground
- 0-6 km bulk shear
- 50 kt
- 0-1 km storm-relative helicity
- 100 m²/s²
- 0-3 km storm-relative helicity
- 110 m²/s²
- Significant tornado parameter
- 1.7
- Supercell composite
- 8.2
The text
As transmitted, in the capitals the NWS used until 2016.
295
WUUS54 KBRO 050538
SVRBRO
TXC061-489-050630-
/O.NEW.KBRO.SV.W.0099.121205T0538Z-121205T0630Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BROWNSVILLE TX
1138 PM CST TUE DEC 4 2012
THE NATIONAL WEATHER SERVICE IN BROWNSVILLE HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
NORTHWESTERN CAMERON COUNTY IN DEEP SOUTH TEXAS.
WESTERN WILLACY COUNTY IN DEEP SOUTH TEXAS.
* UNTIL 1230 AM CST
* AT 1137 PM CST...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
SEVERE THUNDERSTORM...CAPABLE OF PRODUCING HALF-DOLLAR SIZE HAIL
AND DAMAGING 60 MPH WINDS...7 MILES NORTHWEST OF RAYMONDVILLE...
MOVING SOUTHEAST AT 20 MPH.
* THE SEVERE THUNDERSTORM WILL BE NEAR...
YTURRIA.
LASARA.
RAYMONDVILLE.
LYFORD.
SEBASTIAN.
YZNAGA.
HIGHWAY 77.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
MOVE INSIDE A STURDY BUILDING. DAMAGING WIND...LARGE HAIL...
TORRENTIAL RAIN...AND DEADLY LIGHTNING ARE EXPECTED. STAY INSIDE AWAY
FROM WINDOWS UNTIL THE STORM HAS PASSED.
FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE
INDOORS IMMEDIATELY. DO NOT USE ELECTRICAL APPLIANCES OR TELEPHONES.
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 2613 9778 2633 9787 2643 9786 2643 9791
2657 9797 2660 9796 2660 9774 2624 9751
TIME...MOT...LOC 0537Z 335DEG 17KT 2655 9783
$$
TOMASELLI3 follow-up statements
667
WWUS54 KBRO 050608
SVSBRO
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BROWNSVILLE TX
1208 AM CST WED DEC 5 2012
TXC061-489-050630-
/O.CON.KBRO.SV.W.0099.000000T0000Z-121205T0630Z/
CAMERON-WILLACY-
1208 AM CST WED DEC 5 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1230 AM CST
FOR CENTRAL WILLACY AND NORTHWESTERN CAMERON COUNTIES...
AT 1204 AM CST...THE RAYMONDVILLE POLICE DEPARTMENT ESTIMATED WINDS
OF 60 MPH OCCURRED WHEN THE THUNDERSTORM PASSED THROUGH THE CITY OF
RAYMONDVILLE IN WILLACY COUNTY.
NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THE SEVERE
THUNDERSTORM WAS NOW 3 MILES SOUTH OF RAYMONDVILLE...MOVING SOUTHEAST
AT 20 MPH.
THE SEVERE THUNDERSTORM WILL BE NEAR...
LYFORD.
ZAPATA RANCH.
LOS COYOTES.
YZNAGA.
LASANA.
THE SEVERE THUNDERSTORM IS ALSO CAPABLE OF PRODUCING...
QUARTER SIZE HAIL.
60 MPH WIND GUSTS.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THIS IS A DANGEROUS STORM.
MOVE INTO A STURDY BUILDING IMMEDIATELY!
PLEASE REPORT TORNADOES OR FUNNEL CLOUDS...WINDS OF 58 MPH OR
HIGHER...HAIL THE SIZE OF PENNIES OR LARGER...AND ANY WIND DAMAGE TO
YOUR NATIONAL WEATHER SERVICE IN BROWNSVILLE BY CALLING 956-504-1432.
&&
LAT...LON 2613 9778 2632 9787 2643 9786 2643 9791
2647 9793 2649 9792 2649 9767 2624 9751
TIME...MOT...LOC 0607Z 335DEG 17KT 2642 9776
$$
TOMASELLI216
WWUS54 KBRO 050624
SVSBRO
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BROWNSVILLE TX
1224 AM CST WED DEC 5 2012
TXC061-489-050630-
/O.CON.KBRO.SV.W.0099.000000T0000Z-121205T0630Z/
CAMERON-WILLACY-
1224 AM CST WED DEC 5 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1230 AM CST
FOR CENTRAL WILLACY AND NORTHWESTERN CAMERON COUNTIES...
AT 1220 AM CST...THE PUBLIC REPORTED THAT A BARN WAS DESTROYED BY
ESTIMATED 70 TO 80 MPH WINDS A FEW MILES WEST OF RAYMONDVILLE AT
1148 PM CST. A CAR WAS ALSO CRUSHED BY THE COLLAPSING BARN.
NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THE SEVERE
THUNDERSTORM WAS NOW 8 MILES SOUTH OF RAYMONDVILLE...MOVING SOUTHEAST
AT 20 MPH.
THE SEVERE THUNDERSTORM WILL BE NEAR...
LOS COYOTES.
YZNAGA.
LASANA.
THE SEVERE THUNDERSTORM IS ALSO CAPABLE OF PRODUCING...
QUARTER SIZE HAIL.
60 MPH WIND GUSTS.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THE STORM HAS A HISTORY OF PRODUCING DAMAGING WINDS AND LARGE HAIL.
MOVE INTO A STURDY BUILDING IMMEDIATELY!
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 2613 9778 2632 9787 2643 9786 2643 9791
2647 9793 2649 9792 2649 9767 2624 9751
TIME...MOT...LOC 0622Z 335DEG 17KT 2636 9773
$$
TOMASELLI444
WWUS54 KBRO 050633
SVSBRO
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BROWNSVILLE TX
1233 AM CST WED DEC 5 2012
TXC061-489-050643-
/O.EXP.KBRO.SV.W.0099.000000T0000Z-121205T0630Z/
CAMERON-WILLACY-
1233 AM CST WED DEC 5 2012
...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL WILLACY AND
NORTHWESTERN CAMERON COUNTIES HAS EXPIRED...
AT 1233 AM CST...NATIONAL WEATHER SERVICE RADAR INDICATED THE
THUNDERSTORM HAD WEAKENED AND WAS NO LONGER SEVERE...THUS THE WARNING
HAS BEEN ALLOWED TO EXPIRE.
DOPPLER RADAR INDICATED THAT HEAVY RAIN...SMALL HAIL...AND GUSTY
WINDS WERE STILL POSSIBLE FROM THE THUNDERSTORM.
LAT...LON 2613 9778 2632 9787 2643 9786 2643 9791
2647 9793 2649 9792 2649 9767 2624 9751
TIME...MOT...LOC 0624Z 335DEG 17KT 2635 9773
$$
TOMASELLIThe office that day
Everything else NWS Brownsville, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 4, 9:17 PM CST | Special Marine Warning | BRO | 3 hr | |
| Dec 4, 10:52 PM CST | Special Marine Warning | BRO | 113 min | |
| Dec 5, 12:40 AM CST | Special Marine Warning | BRO | 69 min | |
| Dec 5, 12:55 AM CST | Severe Thunderstorm Warning | BRO | Cameron | 41 min |
Nearby
Severe Thunderstorm Warnings in Texas, 2012Every severe thunderstorm 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.