Alert archive / Texas / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 89, NWS San Angelo, TX

May 3, 2002Coleman County, Texas

NWS San Angelo, TX issued this severe thunderstorm warning at May 3, 2002, 3:40 AM CDT for Coleman County, Texas. It was in force for 35 min. 1 report 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
May 3, 2002, 3:40 AM CDT (08:40 UTC)
Expired
May 3, 2002, 4:15 AM CDT
In force
35 min
Issued by
NWS San Angelo, TX
Area
Counties, with a storm outline in the text

County Coleman County, TX

What was reported inside it

TimeReportWhereRemark
May 3, 3:45 AM CDTHail 1.75Novice, TXGolfball size hail fell in and around Novice as severe thunderstorms moved through the area.

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.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The nearest sounding before it

Fort Worth, TX (KFWD), launched 00:00Z, 8.7 hours before the alert went out and 230 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, Fort Worth, TX at 00:00Z on 2002-05-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Fort Worth, TX at 00:00Z on 2002-05-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 176 square meters per square second.1939587897Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
925 m above ground
0-6 km bulk shear
77 kt
0-1 km storm-relative helicity
176 m²/s²
0-3 km storm-relative helicity
264 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

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

000 
WUUS54 KSJT 030840
SVRSJT
TXC083-030915-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SAN ANGELO TX
339 AM CDT FRI MAY 3 2002

THE NATIONAL WEATHER SERVICE IN SAN ANGELO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  COLEMAN COUNTY IN NORTH CENTRAL TEXAS

* UNTIL 415 AM CDT

* AT 333 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 4 MILES WEST OF NOVICE...OR ABOUT 14 MILES EAST
  OF WINTERS...MOVING NORTHEAST AT 45 MPH.

SEVERE THUNDERSTORMS PRODUCE LARGE HAIL...DAMAGING WINDS...DANGEROUS
LIGHTNING...AND VERY HEAVY RAINFALL. FOR YOUR PROTECTION...MOVE TO AN
INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS.

LAT...LON 3207 9971 3191 9970 3208 9920 3207 9943

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 3, 3:10 AM CDT, 30 minutes earlier.

Area forecast discussion, May 3, 3:10 AM CDT, 30 minutes before
WEST CENTRAL TEXAS FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE SAN ANGELO TX
310 AM CDT FRI MAY 3 2002

AN 850MB JET IS BEGINNING TO DEVELOP OVER THE SOUTHERN COUNTIES.
ASSOCIATED SHOWERS AND THUNDERSTORMS ARE DEVELOPING ALONG AND NORTH
OF THE 850MB MOISTURE CONVERGENCE LINE. AT 06Z THIS LINE STRETCHED
FROM THE WESTERN TIP OF TOM GREEN COUNTY EASTWARD THROUGH RUNNELS
AND BROWN COUNTIES. A FEW OF THESE STORMS MAY BECOME SEVERE WITH
LARGE HAIL AND STRONG WINDS POSSIBLE. THIS AREA WILL LIFT SLOWLY
NORTHEAST EARLY THIS MORNING BEFORE BEING SWEPT TO THE EAST BY AN
850MB TROUGH/DRYLINE MOVING IN FROM THE WEST BY MID MORNING.
OTHERWISE...THE REST OF FRIDAY WILL BE DRY WITH TEMPS NEAR
NORMAL...WITH DEWPOINTS IN THE LOW 40S TO NEAR 50F ACROSS THE ENTIRE
AREA.

SATURDAY/SATURDAY NIGHT ANOTHER WAVE OF MOISTURE WILL WORK ITS WAY
NORTH ACROSS WEST CENTRAL TEXAS AS A VIGOROUS SHORT WAVE SLIDES
NORTHEAST ACROSS THE REGION. THIS WILL HELP TO TRIGGER SCATTERED
SHOWERS AND THUNDERSTORMS DURING THE AFTERNOON/EVENING SOUTH AND
DURING THE EVENING/OVERNIGHT NORTH. WILL HAVE TO WATCH FOR SEVERE
POTENTIAL WITH THESE STORMS...WITH STRONG THETA-E ADVECTION AND GOOD
LOW LEVEL CONVERGENCE.

LEFT THE EXTENDED AS IS WITH THE MENTION OF A SLIGHT CHANCE OF
THUNDERSTORMS MONDAY THROUGH WEDNESDAY FOR ALL AREAS. THE BEST
CHANCES WILL BE ALONG THE DRYLINE IN THE BIG COUNTRY DURING THE
AFTERNOONS/EARLY EVENINGS...WITH VERY SLIM CHANCES (ISOLATED AT
BEST) SOUTH OF THE BIG COUNTRY. WILL BUMP UP HIGHS SLIGHTLY ALL
AREAS GIVEN THE 850MB TEMPS INDICATING SLIGHTLY WARMER THAN PREVIOUS
RUNS.

ABI 084/058/085/064 3034
SJT 086/059/086/067 2032
JCT 088/061/086/068 1032

.SJT...NONE.

24

The office that day

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

IssuedProductOfficeCountiesLasted
May 3, 1:46 AM CDTSevere Thunderstorm WarningSJTRunnels44 min
May 3, 2:24 AM CDTSevere Thunderstorm WarningSJTCoke51 min
May 3, 2:41 AM CDTSevere Thunderstorm WarningSJTColeman34 min
May 3, 3:05 AM CDTSevere Thunderstorm WarningSJTCallahan40 min
May 3, 4:02 AM CDTSevere Thunderstorm WarningSJTCallahan28 min
May 3, 4:10 AM CDTSevere Thunderstorm WarningSJTBrown35 min
May 3, 8:22 AM CDTSevere Thunderstorm WarningSJTSan Saba23 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.