Alert archive / Texas / Severe Thunderstorm Warnings in 2004

Severe Thunderstorm Warning 13, NWS Brownsville, TX

April 4, 2004Brooks County, Texas

NWS Brownsville, TX issued this severe thunderstorm warning at Apr 4, 2004, 8:30 PM CDT for Brooks County, Texas. It was in force for 45 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Apr 4, 2004, 8:30 PM CDT (01:30 UTC)
Expired: Apr 4, 2004, 9:15 PM CDT
In force: 45 min
Issued by: NWS Brownsville, TX
Area: Counties, with a storm outline in the text

County Brooks County, TX

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Apr 4, 6:40 PM CDT	Severe Thunderstorm Watch	SPC	4 hr

The nearest sounding before it

Corpus Christi, TX (KCRP), launched 00:00Z, 1.5 hours before the alert went out and 99 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 903 J/kg
Mixed-layer CIN: -2 J/kg
Mixed-layer LCL: 615 m above ground
0-6 km bulk shear: 44 kt
0-1 km storm-relative helicity: 109 m²/s²
0-3 km storm-relative helicity: 178 m²/s²
Significant tornado parameter: 0.6
Supercell composite: 4.1

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WUUS54 KBRO 050130
SVRBRO
TXC047-050215-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BROWNSVILLE TX
830 PM CDT SUN APR 4 2004

THE NATIONAL WEATHER SERVICE IN BROWNSVILLE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHEASTERN BROOKS COUNTY IN DEEP SOUTH TEXAS

* UNTIL 915 PM CDT

* AT 830 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM JUST WEST OF FALFURRIAS...DRIFTING SLOWLY
  EAST.

* THE SEVERE THUNDERSTORM WILL REMAIN NEAR OR OVER
   FALFURRIAS DURING THE NEXT 30 MINUTES.

DOPPLER RADAR HAS INDICATED SOME WEAK ROTATION WITHIN THIS STORM.
WHILE NOT IMMEDIATELY LIKELY...A TORNADO MAY STILL DEVELOP. IF A
TORNADO IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A
STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL INTERIOR ROOM.

THIS STORM HAS A HISTORY OF PRODUCING LARGE DAMAGING HAIL TO THE 
SIZE OF GOLF BALLS. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND 
STAY AWAY FROM WINDOWS

LAT...LON 2730 9829 2713 9828 2711 9800 2732 9799

$$

PHILO

The office that day

Everything else NWS Brownsville, TX issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 4, 7:15 PM CDT	Flash Flood Warning	BRO	Brooks	105 min
Apr 4, 7:24 PM CDT	Severe Thunderstorm Warning	BRO	Zapata	66 min
Apr 4, 7:33 PM CDT	Severe Thunderstorm Warning	BRO	Brooks	57 min
Apr 4, 7:44 PM CDT	Flash Flood Warning	BRO	Zapata	3 hr
Apr 4, 8:10 PM CDT	Flash Flood Warning	BRO	Brooks, Jim Hogg	3 hr
Apr 4, 8:14 PM CDT	Severe Thunderstorm Warning	BRO	Jim Hogg	61 min
Apr 4, 8:49 PM CDT	Tornado Warning	BRO	Jim Hogg	41 min
Apr 4, 9:04 PM CDT	Tornado Warning	BRO	Brooks, Jim Hogg	41 min
Apr 4, 9:14 PM CDT	Severe Thunderstorm Warning	BRO	Brooks	31 min
Apr 4, 9:45 PM CDT	Severe Thunderstorm Warning	BRO	Brooks, Kenedy	45 min
Apr 4, 10:32 PM CDT	Severe Thunderstorm Warning	BRO	Kenedy	58 min
Apr 4, 11:16 PM CDT	Flash Flood Warning	BRO	Brooks, Kenedy	3 hr
Apr 4, 11:20 PM CDT	Special Marine Warning	BRO		85 min
Apr 4, 11:20 PM CDT	Special Marine Warning	BRO		85 min
Apr 5, 12:08 AM CDT	Flash Flood Warning	BRO	Starr	3 hr
Apr 5, 12:30 AM CDT	Severe Thunderstorm Warning	BRO	Kenedy	60 min
Apr 5, 12:45 AM CDT	Severe Thunderstorm Warning	BRO	Starr	45 min
Apr 5, 12:58 AM CDT	Special Marine Warning	BRO		2 hr
Apr 5, 12:58 AM CDT	Special Marine Warning	BRO		2 hr
Apr 5, 1:00 AM CDT	Tornado Warning	BRO	Starr	45 min
Apr 5, 1:03 AM CDT	Flash Flood Warning	BRO	Hidalgo	3 hr
Apr 5, 2:48 AM CDT	Flash Flood Warning	BRO	Cameron	102 min
Apr 5, 6:01 AM CDT	Severe Thunderstorm Warning	BRO	Cameron	59 min

Nearby

Severe Thunderstorm Warnings in Texas, 2004 Every severe thunderstorm warning in 2004

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.