Alert archive / Texas / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 238, NWS San Angelo, TX

July 28, 2002Jones County, Taylor County, Texas

NWS San Angelo, TX issued this severe thunderstorm warning at Jul 28, 2002, 8:40 PM CDT for Jones County, Taylor County, Texas. It was in force for 35 min. 4 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued: Jul 28, 2002, 8:40 PM CDT (01:40 UTC)
Expired: Jul 28, 2002, 9:15 PM CDT
In force: 35 min
Issued by: NWS San Angelo, TX
Area: Counties, with a storm outline in the text

Counties Jones County, TX, Taylor County, TX

What was reported inside it

Time	Report	Where	Remark
Jul 28, 8:55 PM CDT	Thunderstorm Wind	Tye, TX	A barn was destroyed due to high winds near Tye.
Jul 28, 8:56 PM CDT	Hail 1.75	Tye, TX	Golfball size hail reported at Tye.
Jul 28, 9:15 PM CDT	Thunderstorm Wind	Lawn, TX	Several power lines were downed due to high winds at Lawn.
Jul 28, 9:15 PM CDT	Hail 0.75	Lawn, TX

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The nearest sounding before it

Midland Regional, TX (KMAF), launched 00:00Z, 1.7 hours before the alert went out and 227 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: 670 J/kg
Mixed-layer CIN: -8 J/kg
Mixed-layer LCL: 2995 m above ground
0-6 km bulk shear: 16 kt
0-1 km storm-relative helicity: 7 m²/s²
0-3 km storm-relative helicity: 20 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

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 San Angelo, TX wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 28, 1:45 PM CDT, 6 hours 55 minutes earlier.

Area forecast discussion, Jul 28, 1:45 PM CDT, 6 hours 55 minutes before

WEST CENTRAL TEXAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN ANGELO TX
145 PM CDT SUN JUL 28 2002

...FORECAST CHALLENGE WILL BE THUNDERSTORM CHANCES THROUGH TUESDAY...

.CURRENT...LATEST RADAR TRENDS INDICATE SHOWERS AND THUNDERSTORMS
DEVELOPING OVER THE WESTERN PORTIONS OF THE FORECAST AREA EARLY THIS
AFTERNOON AS SHORT WAVE BEGINS TO WORK ITS WAY INTO THE AREA.
MOISTURE IS STILL HERE WITH DEWPOINTS AT 1 PM REMAINING IN THE UPPER
60S TO LOWER 70S WITH WELL MIXED ATMOSPHERE.

.SHORT TERM...SHORT WAVE TROUGH WORKS INTO THE AREA. THUS EXPECT
THUNDERSTORMS CURRENTLY FORM TO INCREASE IN AREAL COVERAGE THROUGH
THE AFTERNOON AND EARLY EVENING. THUNDERSTORMS MAY DISSIPATE SOME
AFTER SUNSET...HOWEVER WITH THE LOW LEVEL JET IN PLACE AGAIN TONIGHT
CANT RULE OUT THUNDERSTORMS SURVIVING THROUGH THE NIGHT. THINK THE
BEST COVERAGE OF SCATTERED VARIETY WILL BE FROM THE CONCHO VALLEY
NORTHWARD INTO THE BIG COUNTRY. WITH ISOLATED COVERAGE AT BEST
ELSEWHERE. THE WINDS HAVE BEEN RATHER BREEZY ACROSS THE AREA TODAY
AND EXPECT THIS TO CONTINUE INTO THE EVENING HOURS...THUS WILL ADD
CAUTION ON AREA LAKES TO THE ZONES.

.MONDAY THROUGH TUESDAY...AS THE SHORTWAVE TROUGH PASSES BY THE
SOUTHERN END IS FORECAST TO GET LEFT BEHIND...THUS LEAVING A
WEAKNESS IN THE RIDGE THROUGH TUESDAY. PLAN ON LEAVING SCATTERED
POPS ACROSS THE NORTH TAPERING TO ISOLATED BY TUESDAY. ACROSS THE
SOUTH...CURRENT ISOLATED MENTION LOOKS TO BE GOOD AND WILL KEEP.
TEMPERATURES WILL BE A LITTLE COOLER DUE TO THE CLOUDS AND SOME
PRECIP AROUND.

.WEDNESDAY THROUGH SUNDAY...LOOKS LIKE THE RIDGE WILL TAKE OVER ON
WEDNESDAY...THUS WILL PULL THE CURRENT SLIGHT CHANCE IN FORECAST.
HOWEVER THURSDAY THROUGH SUNDAY...THE RIDGE GRADUALLY BUILDS INTO
THE CENTRAL PLAINS LEAVING WEST CENTRAL TEXAS ON THE SOUTHERN
PERIPHERY OF THIS FEATURE AND GIVING US HOPE FOR AN EASTERLY WAVE.
MODELS ALSO INDICATE A FAIRLY WEAK CAP STRENGTH WITH 700MB
TEMPERATURES ONLY RUNNING 8C OR BELOW THURSDAY THROUGH SUNDAY. WITH
ALL THAT SAID WILL NOT PUT RAIN CHANCES IN JUST YET THAT FAR
OUT...BUT MAY HAVE TO IN LATER FORECASTS.

ABI 075/093/073/093 3332
SJT 076/094/072/094 3332
JCT 075/093/073/093 2222

.SJT...CAUTION ON AREA LAKES THIS EVENING.

27/BRAZZELL

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 28, 7:32 PM CDT	Flash Flood Warning	SJT	Tom Green	3 hr
Jul 28, 8:03 PM CDT	Severe Thunderstorm Warning	SJT	Tom Green	57 min
Jul 28, 9:02 PM CDT	Flash Flood Warning	SJT	Irion	3 hr
Jul 28, 9:12 PM CDT	Severe Thunderstorm Warning	SJT	Tom Green	63 min
Jul 28, 9:46 PM CDT	Flash Flood Warning	SJT	Coke	59 min
Jul 28, 10:01 PM CDT	Severe Thunderstorm Warning	SJT	Tom Green	29 min
Jul 28, 10:13 PM CDT	Flash Flood Warning	SJT	Coke, Tom Green	107 min
Jul 29, 11:45 AM CDT	Severe Thunderstorm Warning	SJT	Coke	60 min
Jul 29, 1:18 PM CDT	Flash Flood Warning	SJT	Tom Green	4 hr

Nearby

Severe Thunderstorm Warnings in Texas, 2002 Every severe thunderstorm warning in 2002

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.