Alert archive / Texas / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 47, NWS San Angelo, TX

April 7, 2002Concho County, McCulloch County, Texas

NWS San Angelo, TX issued this severe thunderstorm warning at Apr 7, 2002, 4:43 PM CDT for Concho County, McCulloch County, Texas. It was in force for 62 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 7, 2002, 4:43 PM CDT (21:43 UTC)
Expired
Apr 7, 2002, 5:45 PM CDT
In force
62 min
Issued by
NWS San Angelo, TX
Area
Counties, with a storm outline in the text

Counties Concho County, TX, McCulloch County, TX

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 watch it was issued in

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

IssuedProductOfficeLasted
Apr 7, 1:00 PM CDTTornado WatchSPC6 hr
Apr 7, 2:30 PM CDTTornado WatchSPC6 hr

The nearest sounding before it

Midland Regional, TX (KMAF), launched 12:00Z, 9.7 hours before the alert went out and 257 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, Midland Regional, TX at 12:00Z on 2002-04-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1670 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, Midland Regional, TX at 12:00Z on 2002-04-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 251 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
1670 J/kg
Mixed-layer CIN
-34 J/kg
Mixed-layer LCL
501 m above ground
0-6 km bulk shear
43 kt
0-1 km storm-relative helicity
251 m²/s²
0-3 km storm-relative helicity
276 m²/s²
Significant tornado parameter
0.0
Supercell composite
9.4

Open this sounding in Storm Lab

The text

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

000 
WUUS54 KSJT 072143
SVRSJT
TXC095-307-072245-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SAN ANGELO TX
443 PM CDT SUN APR 7 2002

THE NATIONAL WEATHER SERVICE IN SAN ANGELO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CONCHO COUNTY IN SOUTHWEST TEXAS
  MCCULLOCH COUNTY IN NORTH CENTRAL TEXAS

* UNTIL 545 PM CDT

* AT 437 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 7 MILES SOUTHWEST OF MILLERSVIEW...OR ABOUT 13
  MILES SOUTHEAST OF PAINT ROCK...MOVING EAST AT 25 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
   MILLERSVIEW AT 450 PM CDT
   SALT GAP AT 505 PM CDT
   DOOLE AT 510 PM CDT
   PEAR VALLEY AROUND 520 PM CDT
   LOHN BETWEEN 530 PM CDT AND 540 PM CDT

SEVERE THUNDERSTORMS CAN PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE
WARNING. TAKE SHELTER INSIDE A STURDY BUILDING...AND STAY IN AN
INTERIOR ROOM AWAY FROM WINDOWS.

HAIL THE SIZE OF QUARTERS AND WIND GUSTS OF 60 MPH CAN BE EXPECTED
WITH THIS STORM. TAKE SHELTER IN A STURDY BUILDING AND STAY AWAY FROM
WINDOWS.

LAT...LON 3154 9976 3124 9988 3122 9919 3144 9925
          3142 9956

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 Apr 7, 3:51 PM CDT, 52 minutes earlier.

Area forecast discussion, Apr 7, 3:51 PM CDT, 52 minutes before
WEST CENTRAL TEXAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN ANGELO TX
350 PM CST SUN APR 7 2002

CURRENT...LOTS OF ACTION WITH NUMEROUS SEVERE STORMS WITH LARGE HAIL
AND SEVERAL TORNADOES ACROSS WEST CENTRAL TEXAS.

DAYS 1-3...SEVERE THREAT CONTINUES THIS EVENING...THEN CLEARING.
LOTS OF SUNSHINE TOMORROW. ZONAL FLOW BRINGS CLOUDS TOMORROW THROUGH
MID WEEK. WILL CONTINUE DRY FORECAST WITH TEMPERATURES CLOSE TO
GUIDANCE. SURFACE WINDS WILL CONTINUE IN THE BREEZY CATEGORY
TONIGHT. TOMORROW AND TOMORROW NIGHT WINDS WILL BECOME MORE
NORTHERLY AS THE SURFACE LOW MOVES EAST.

DAYS 4-7...NO CHANGES HERE.

CCF PRELIMS...

ABI 055/078/050/073 7000
SJT 053/083/050/075 6000
JCT 056/085/050/077 7000

.SJT...TORNADO WATCH BROWN AND SAN SABA UNTIL 8 PM THIS EVENING.
    ...TORNADO WATCH ALL OTHER ZONES...EXCEPT MASON...UNTIL 7 PM
       THIS EVENING.

    ...CAUTION ON AREA LAKES ALL ZONES THIS AFTERNOON.

23/HUBER

In the hours before

Special weather statement, Apr 7, 12:00 PM CDT, 4 hours 43 minutes before
TXZ049-054-064>066-071>073-076>078-098-099-113-114-127-128-139-140-
154-155-168>170-071930-

WEST CENTRAL TEXAS HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SAN ANGELO TX
1200 PM CDT SUN APR 7 2002

...THERE IS A MODERATE RISK FOR SEVERE STORMS OVER ALL OF WEST
CENTRAL TEXAS THIS AFTERNOON...

A POTENT UPPER LEVEL DISTURBANCE WILL MOVE OUT OF NEW MEXICO INTO
WEST TEXAS THIS AFTERNOON INTO TONIGHT. A DRYLINE WILL ADVANCE
EASTWARD ACROSS MUCH OF WEST CENTRAL TEXAS DURING THE AFTERNOON.
THUNDERSTORMS WILL RAPIDLY DEVELOP BY EARLY AFTERNOON ALONG THE
DRYLINE AS IT ENTERS WESTERN SECTIONS OF THE REGION. CONDITIONS WILL
BE FAVORABLE FOR THE STORMS WILL RAPIDLY INTENSIFY AND BECOME
SEVERE.

GIVEN THE STRENGTH OF THIS SYSTEM...ISOLATED STRONG TORNADOS WILL BE
POSSIBLE...ALONG WITH VERY LARGE HAIL AND DAMAGING WINDS.

PEOPLE THROUGHOUT WEST CENTRAL TEXAS SHOULD TUNE INTO NOAA WEATHER
RADIO...LOCAL TELEVISION AND RADIO STATIONS FOR THE LATEST WEATHER
INFORMATION THIS AFTERNOON AND EVENING. KEEP INFORMED OF THE LATEST
WEATHER DEVELOPMENTS. BE READY TO SEEK SHELTER IF WARNINGS ARE
ISSUED.

SPOTTER ACTIVATION WILL LIKELY BE NEEDED.
Special weather statement, Apr 7, 12:08 PM CDT, 4 hours 35 minutes before
TXZ049-054-064>066-071>073-076>078-098-099-113-114-127-128-139-140-
154-155-168>170-071930-

WEST CENTRAL TEXAS HAZARDOUS WEATHER OUTLOOK...CORRECTED
NATIONAL WEATHER SERVICE SAN ANGELO TX
1208 PM CDT SUN APR 7 2002

...THERE IS A MODERATE RISK FOR SEVERE STORMS OVER ALL OF WEST
CENTRAL TEXAS THIS AFTERNOON...

A POTENT UPPER LEVEL DISTURBANCE WILL MOVE OUT OF NEW MEXICO INTO
WEST TEXAS THIS AFTERNOON INTO TONIGHT. A DRYLINE WILL ADVANCE
EASTWARD ACROSS MUCH OF WEST CENTRAL TEXAS DURING THE AFTERNOON.
THUNDERSTORMS WILL RAPIDLY DEVELOP BY EARLY AFTERNOON ALONG THE
DRYLINE AS IT ENTERS WESTERN SECTIONS OF THE REGION. CONDITIONS WILL
BE FAVORABLE FOR THE STORMS TO RAPIDLY INTENSIFY AND BECOME
SEVERE.

GIVEN THE STRENGTH OF THIS SYSTEM...ISOLATED STRONG TORNADOS WILL BE
POSSIBLE...ALONG WITH VERY LARGE HAIL AND DAMAGING WINDS.

PEOPLE THROUGHOUT WEST CENTRAL TEXAS SHOULD TUNE INTO NOAA WEATHER
RADIO...LOCAL TELEVISION AND RADIO STATIONS FOR THE LATEST WEATHER
INFORMATION THIS AFTERNOON AND EVENING. BE READY TO SEEK SHELTER IF
WARNINGS ARE ISSUED.

SPOTTER ACTIVATION WILL LIKELY BE NEEDED.
Special weather statement, Apr 7, 12:09 PM CDT, 4 hours 34 minutes before
TXZ049-054-064>066-071>073-076>078-098-099-113-114-127-128-139-140-
154-155-168>170-071930-

WEST CENTRAL TEXAS HAZARDOUS WEATHER OUTLOOK...CORRECTED
NATIONAL WEATHER SERVICE SAN ANGELO TX
1209 PM CDT SUN APR 7 2002

...THERE IS A MODERATE RISK FOR SEVERE STORMS OVER ALL OF WEST
CENTRAL TEXAS THIS AFTERNOON...

A POTENT UPPER LEVEL DISTURBANCE WILL MOVE OUT OF NEW MEXICO INTO
WEST TEXAS THIS AFTERNOON INTO TONIGHT. A DRYLINE WILL ADVANCE
EASTWARD ACROSS MUCH OF WEST CENTRAL TEXAS DURING THE AFTERNOON.
THUNDERSTORMS WILL RAPIDLY DEVELOP BY EARLY AFTERNOON ALONG THE
DRYLINE AS IT ENTERS WESTERN SECTIONS OF THE REGION. CONDITIONS WILL
BE FAVORABLE FOR THE STORMS TO RAPIDLY INTENSIFY AND BECOME
SEVERE.

GIVEN THE STRENGTH OF THIS SYSTEM...ISOLATED STRONG TORNADOES WILL
BE POSSIBLE...ALONG WITH VERY LARGE HAIL AND DAMAGING WINDS.

PEOPLE THROUGHOUT WEST CENTRAL TEXAS SHOULD TUNE INTO NOAA WEATHER
RADIO...LOCAL TELEVISION AND RADIO STATIONS FOR THE LATEST WEATHER
INFORMATION THIS AFTERNOON AND EVENING. BE READY TO SEEK SHELTER IF
WARNINGS ARE ISSUED.

SPOTTER ACTIVATION WILL LIKELY BE NEEDED.

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 6, 7:29 PM CSTSevere Thunderstorm WarningSJTTaylor31 min
Apr 7, 1:32 PM CDTSevere Thunderstorm WarningSJTSterling58 min
Apr 7, 2:02 PM CDTTornado WarningSJTCrockett58 min
Apr 7, 2:35 PM CDTSevere Thunderstorm WarningSJTHaskell40 min
Apr 7, 2:57 PM CDTTornado WarningSJTCrockett48 min
Apr 7, 3:07 PM CDTSevere Thunderstorm WarningSJTThrockmorton53 min
Apr 7, 3:10 PM CDTSevere Thunderstorm WarningSJTSterling65 min
Apr 7, 3:12 PM CDTSevere Thunderstorm WarningSJTTaylor33 min
Apr 7, 3:14 PM CDTSevere Thunderstorm WarningSJTTom Green46 min
Apr 7, 3:17 PM CDTSevere Thunderstorm WarningSJTCoke58 min
Apr 7, 3:19 PM CDTSevere Thunderstorm WarningSJTHaskell41 min
Apr 7, 3:25 PM CDTTornado WarningSJTSchleicher, Sutton65 min
Apr 7, 3:30 PM CDTTornado WarningSJTThrockmorton60 min
Apr 7, 3:40 PM CDTSevere Thunderstorm WarningSJTColeman, Runnels35 min
Apr 7, 3:42 PM CDTSevere Thunderstorm WarningSJTTaylor63 min
Apr 7, 3:44 PM CDTSevere Thunderstorm WarningSJTCallahan61 min
Apr 7, 3:52 PM CDTSevere Thunderstorm WarningSJTShackelford53 min
Apr 7, 3:55 PM CDTSevere Thunderstorm WarningSJTJones65 min
Apr 7, 3:58 PM CDTSevere Thunderstorm WarningSJTCrockett62 min
Apr 7, 4:08 PM CDTFlash Flood WarningSJTThrockmorton2 hr
Apr 7, 4:09 PM CDTSevere Thunderstorm WarningSJTColeman, Runnels66 min
Apr 7, 4:22 PM CDTSevere Thunderstorm WarningSJTFisher53 min
Apr 7, 4:24 PM CDTTornado WarningSJTMenard, Schleicher66 min
Apr 7, 4:27 PM CDTTornado WarningSJTThrockmorton48 min
Apr 7, 5:04 PM CDTSevere Thunderstorm WarningSJTBrown56 min
Apr 7, 5:25 PM CDTTornado WarningSJTMcCulloch, Mason, Menard65 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.