Alert archive / Texas / Severe Thunderstorm Warnings in 1996
Severe Thunderstorm Warning 7, NWS Brownsville, TX
NWS Brownsville, TX issued this severe thunderstorm warning at Aug 13, 1996, 7:18 PM CDT for Zapata County, Texas. It was in force for 57 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Aug 13, 1996, 7:18 PM CDT (00:18 UTC)
- Expired
- Aug 13, 1996, 8:15 PM CDT
- In force
- 57 min
- Issued by
- NWS Brownsville, TX
- Area
- Whole counties
County Zapata County, TX
The nearest sounding before it
Corpus Christi, TX (KCRP), launched 00:00Z, 0.3 hours before the alert went out and 198 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
- 2117 J/kg
- Mixed-layer CIN
- -88 J/kg
- Mixed-layer LCL
- 1292 m above ground
- 0-6 km bulk shear
- 20 kt
- 0-1 km storm-relative helicity
- 36 m²/s²
- 0-3 km storm-relative helicity
- 59 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 2.3
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KBRO 140017 SVRBRO TXC505-140115- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE BROWNSVILLE TX 718 PM CDT TUE AUG 13 1996 THE NATIONAL WEATHER SERVICE IN BROWNSVILLE HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 815 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATIONS...... IN SOUTH TEXAS ...ZAPATA COUNTY AT 715 PM RADAR INDICATED A SEVERE THUNDERSTORM ABOUT 10 MILES EAST OF SAN YGNACIO IN ZAPATA COUNTY MOVING SLOWLY SOUTHWEST. A STORM IN THE AREA EARLIER CAUSED WINDS STRONG ENOUGH TO CAUSE A TRACTOR TRAILER TRUCK TO LEAVE THE ROAD. THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH YOU SHOULD PREPARE FOR DAMAGING WIND IN EXCESS OF 55 MPH...LARGE HAIL...AND DEADLY LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER... PREFERABLY INSIDE A STRONG BUILDING BUT STAY AWAY FROM WINDOWS. &
What 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 Aug 13, 2:25 PM CDT, 4 hours 53 minutes earlier.
Area forecast discussion, Aug 13, 2:25 PM CDT, 4 hours 53 minutes before
DEEP SOUTH TEXAS WEATHER FORECAST DISCUSSION NATIONAL WEATHER SERVICE BROWNSVILLE TX 223 PM CDT TUE AUG 13 1996 USUAL SUMMER WX TO RESIDE OVR DP S TX NEXT FEW DAYS WITH WX MOST AFFECTED BY STRONG RIDGE NR 4 CRNRS RGN. WK SFC BNDRY OVER C TX SLOWLY PUSHING SOUTHWARD...BUT DO NOT THINK IT WILL GET FAR ENUF TO HAVE ANY EFFECT ON DP S TX WX OTHER THAN ADD A FEW MORE CLDS. MODELS IN GOOD AGREEMENT WITH RETURN TO HOT AND DRY WX WITH ETA PW VALUES HOLDING IN THE 1.5 TO 1.7 RANGE THRU 48 HRS. SEABREEZE QUIET ATTM AND CONDS NOT REAL FAVORABLE FOR ACTIVITY. MAY STILL POP A FEW RWS/TRWS ALNG IT NEXT COUPLE OF AFTNS...BUT WL NOT ADD POPS TO PACKAGE ATTM AS THEY ARE QUITE LOW. XTNDED NO DIFFERENT WITH TROPICS QUITE QUIET. BRO 78/96/78/96 00/05/00/05 MFE 77/99/78/100 00/05/00/05 RGC 77/104/77/104 00/00/00/00 SPI 80/89/79/89 00/00/00/00 54
In the hours before
Special weather statement, Aug 13, 6:13 PM CDT, 1 hour 5 minutes before
TXZ248-140020- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BROWNSVILLE TX 613 PM CDT TUE AUG 13 1996 AT 615 PM RADAR INDICATED THUNDERSTORMS NEAR SAN YGNACIO IN ZAPATA COUNTY CAPABLE OF CAUSING STRONG WIND. THE STORMS WERE MOVING SLOWLY SOUTHWEST. KEEP CLOSE TABS OF THEM. IF SEVERE WEATHER OCCURS, PLEASE ASK THE NEAREST LAW ENFORCEMENT AGENCY TO CALL THE NATIONAL WEATHER SERVICE IN BROWNSVILLE.
The office that day
Everything else NWS Brownsville, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 13, 8:26 PM CDT | Flash Flood Warning | BRO | Starr, Zapata | 64 min |
| Aug 13, 8:26 PM CDT | Severe Thunderstorm Warning | BRO | Starr, Zapata | 64 min |
| Aug 13, 9:39 PM CDT | Flash Flood Warning | BRO | Zapata | 6 hr |
Nearby
Severe Thunderstorm Warnings in Texas, 1996Every severe thunderstorm warning in 1996
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.