Alert archive / Texas / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 123, NWS San Angelo, TX

May 8, 2002Menard County, Texas

NWS San Angelo, TX issued this severe thunderstorm warning at May 8, 2002, 8:30 PM CDT for Menard County, Texas. It was in force for 60 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
May 8, 2002, 8:30 PM CDT (01:30 UTC)
Expired
May 8, 2002, 9:30 PM CDT
In force
60 min
Issued by
NWS San Angelo, TX
Area
Counties, with a storm outline in the text

County Menard County, TX

The nearest sounding before it

Del Rio, TX (KDRT), launched 00:00Z, 1.5 hours before the alert went out and 195 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-pSkew-T log-p diagram, Del Rio, TX at 00:00Z on 2002-05-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1987 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Del Rio, TX at 00:00Z on 2002-05-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 3 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
1987 J/kg
Mixed-layer CIN
-57 J/kg
Mixed-layer LCL
2597 m above ground
0-6 km bulk shear
65 kt
0-1 km storm-relative helicity
3 m²/s²
0-3 km storm-relative helicity
50 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.3

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 May 8, 5:05 PM CDT, 3 hours 25 minutes earlier.

Area forecast discussion, May 8, 5:05 PM CDT, 3 hours 25 minutes before
WEST CENTRAL TEXAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN ANGELO TX
505 PM CDT WED MAY 8 2002

SENT A QUICK UPDATE TO ADD TORNADO WATCH TO CENTRAL AND EASTERN
ZONES. OTHERWISE...NO OTHER CHANGES.

.SJT...TORNADO WATCH UNTIL 10 PM CDT FOR THESE COUNTIES...

BROWN...CALLAHAN...COLEMAN...CONCHO...MASON...MENARD...
MCCULLOCH...RUNNELS...SAN SABA...SCHLEICHER...TOM GREEN

23/HUBER

****  310 PM CDT WED MAY 8 2002 DISCUSSION FOLLOWS  ****

DRYLINE WAS ALONG WESTERN BOUNDARY OF CWA THIS AFTERNOON. LINE OF
CLOUDS IN VISIBLE IMAGERY SEEMINGLY ALIGNED WITH DRYLINE FROM FT
STOCKTON TO CHILDRESS APPEARS TO BE ALTOCUMULUS INSTEAD OF CUMULUS.
SOUTHWEST TO WEST WINDS ALOFT WERE BRINGING IN DRIER AIR OVER
REGION. IN ADDITION SUBSIDENCE CONDITIONS WERE MOVING INTO TO THE
REGION BEHIND UPPER LEVEL SHORTWAVE...AS INDICATED IN THE WATER
VAPOR LOOP.

RAIN CHANCES QUITE LOW TONIGHT WITH ABOVE CONDITIONS. CAN NOT REALLY
RULE OUT AN ISOLATED SHOWER OR THUNDERSTORM HOWEVER. CAPES WILL
RANGE FROM ZERO OVER WESTERN HALF TO AROUND 1500 J/KG OVER EXTREME
EASTERN SECTIONS. THINKING AT THIS TIME...IS TO HAVE A 10 PERCENT
CHANCE OF STORMS ONLY IN EASTERN ZONES.

COLD FRONT MOVES IN EARLY THURSDAY MORNING. COLD AIR ADVECTION WILL
BE LIMITED IN SOUTHERN ZONES WITH FRONT COMING IN THE AFTERNOON.
WILL INCLUDE A SLIGHT CHANCE OF THUNDERSTORMS IN THE NORTHWEST HILL
COUNTY AND NORTHERN EDWARDS PLATEAU...WHERE FRONT WILL BE LOCATED IN
THE AFTERNOON AT TIME OF MAXIMUM HEATING.

THURSDAY EVENING AND FRIDAY....MOIST AIR RETURNS WITH WARM FRONT...
AND WEAK SHORTWAVES...SMALL POPS WARRANTED.

SLIGHTLY BETTER CHANCES OF RAIN WILL BE SUNDAY NIGHT AS COLD FRONT
COMES THROUGH. SLIGHT CHANCES OF RAIN SHOULD CONTINUE INTO TUESDAY
WITH MOISTURE RETURNING FROM GULF.

PRELIM CCF...
ABI 061/080/058/084/068 --12
SJT 064/086/062/087/068 --22
JCT 066/089/066/087/068 1122

.SJT...NONE.

04

The office that day

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

IssuedProductOfficeCountiesLasted
May 8, 7:05 PM CDTSevere Thunderstorm WarningSJTCrockett70 min
May 8, 8:25 PM CDTSevere Thunderstorm WarningSJTConcho65 min
May 8, 9:44 PM CDTSevere Thunderstorm WarningSJTCrockett61 min
May 8, 10:21 PM CDTSevere Thunderstorm WarningSJTTom Green54 min
May 8, 10:46 PM CDTSevere Thunderstorm WarningSJTConcho59 min
May 8, 11:15 PM CDTSevere Thunderstorm WarningSJTColeman60 min
May 8, 11:51 PM CDTSevere Thunderstorm WarningSJTMenard54 min

Nearby

Severe Thunderstorm Warnings in Texas, 2002Every 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; the sounding from the Mesonet's radiosonde archive.