Alert archive / Texas / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 196, NWS San Angelo, TX

May 27, 2002Schleicher County, Texas

NWS San Angelo, TX issued this severe thunderstorm warning at May 27, 2002, 9:45 PM CDT for Schleicher 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: May 27, 2002, 9:45 PM CDT (02:45 UTC)
Expired: May 27, 2002, 10:30 PM CDT
In force: 45 min
Issued by: NWS San Angelo, TX
Area: Counties, with a storm outline in the text

County Schleicher 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.

Issued	Product	Office	Lasted
May 27, 7:45 PM CDT	Severe Thunderstorm Watch	SPC	4 hr

The nearest sounding before it

Del Rio, TX (KDRT), launched 00:00Z, 2.8 hours before the alert went out and 176 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: 3101 J/kg
Mixed-layer CIN: -131 J/kg
Mixed-layer LCL: 1249 m above ground
0-6 km bulk shear: 53 kt
0-1 km storm-relative helicity: 66 m²/s²
0-3 km storm-relative helicity: 178 m²/s²
Significant tornado parameter: 1.1
Supercell composite: 3.7

Open this sounding in Storm Lab

The text

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

000 
WUUS54 KSJT 280245
SVRSJT
TXC413-280330-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SAN ANGELO TX
944 PM CDT MON MAY 27 2002

THE NATIONAL WEATHER SERVICE IN SAN ANGELO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EASTERN SCHLEICHER COUNTY IN SOUTHWEST TEXAS

* UNTIL 1030 PM CDT

* AT 944 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  A SEVERE THUNDERSTORM OVER EAST CENTRAL SCHLEICHER COUNTY... ABOUT 
  21 MILES EAST OF ELDORADO. THIS SEVERE THUNDERSTORM WAS MOVING     
  SOUTHEAST AT 35 MPH.

HAILSTONES AS LARGE AS QUARTERS ARE LIKELY WITH THIS STORM. MOVE TO 
AN INTERIOR ROOM ON THE LOWEST FLOOR OF A STURDY BUILDING AND STAY 
AWAY FROM WINDOWS.

LAT...LON 3099 10031 3072 10052 3072 10013 3098 10013

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 27, 9:24 PM CDT, 21 minutes earlier.

Area forecast discussion, May 27, 9:24 PM CDT, 21 minutes before

WEST CENTRAL TEXAS FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE SAN ANGELO TX
924 PM CDT MON MAY 27 2002

STRONG TO SEVERE STORMS HAVE EVOLVED INTO A LINEAR MCS...MOVING INTO
SOUTHEASTERN PART OF OUR CWFA. WITH THE SEVERE THREAT SHIFTING
SOUTHEAST...WILL SEND A ZONE UPDATE TO CLEAR THE BIG COUNTRY AND
NORTHWEST CONCHO VALLEY COUNTIES FROM THE SEVERE THUNDERSTORM WATCH.

.SJT...SEVERE THUNDERSTORM WATCH FOR HEARTLAND...NORTHWEST HILL
COUNTRY...NORTHERN EDWARDS PLATEAU...AND CONCHO VALLEY (EXCEPT
STERLING AND COKE COUNTIES) UNTIL MIDNIGHT.

19

In the hours before

Local storm report, May 27, 6:03 PM CDT, 3 hours 42 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SAN ANGELO, TX
603 PM CDT MON MAY 27 2002

TIME(CDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0435 PM    ROBERT LEE                TX   1.75 INCH HAIL
05/27/02   COKE

0509 PM    6 N MILES                 TX   2.50 INCH HAIL
05/27/02   RUNNELS

0515 PM    2 N ORIENT                TX   2.50 INCH HAIL
05/27/02   TOM GREEN

Special weather statement, May 27, 9:11 PM CDT, 34 minutes before

TXZ049-054-064-065-113-114-127-128-280230-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SAN ANGELO TX
911 PM CDT MON MAY 27 2002

SEVERE THUNDERSTORM WATCH NUMBER 349 HAS BEEN CANCELLED FOR THE
FOLLOWING COUNTIES IN WEST CENTRAL TEXAS...

FISHER...JONES...SHACKELFORD...NOLAN...TAYLOR...CALLAHAN...STERLING
AND COKE.

THE SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL MIDNIGHT FOR
AREAS ROUGHLY SOUTHEAST OF A MERTZON TO WINTERS TO BROWNWOOD LINE.

14

The office that day

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

Issued	Product	Office	Counties	Lasted
May 27, 7:17 PM CDT	Severe Thunderstorm Warning	SJT	Tom Green	58 min
May 27, 7:40 PM CDT	Severe Thunderstorm Warning	SJT	Coke	50 min
May 27, 7:43 PM CDT	Severe Thunderstorm Warning	SJT	San Saba	62 min
May 27, 7:49 PM CDT	Severe Thunderstorm Warning	SJT	Irion	56 min
May 27, 8:10 PM CDT	Severe Thunderstorm Warning	SJT	Tom Green	65 min
May 27, 8:25 PM CDT	Severe Thunderstorm Warning	SJT	Concho	65 min
May 27, 8:44 PM CDT	Severe Thunderstorm Warning	SJT	Schleicher	61 min
May 27, 9:10 PM CDT	Severe Thunderstorm Warning	SJT	Menard	65 min
May 27, 9:23 PM CDT	Severe Thunderstorm Warning	SJT	Concho	52 min
May 27, 9:40 PM CDT	Severe Thunderstorm Warning	SJT	McCulloch	65 min
May 27, 10:03 PM CDT	Severe Thunderstorm Warning	SJT	Sutton	42 min
May 27, 10:10 PM CDT	Severe Thunderstorm Warning	SJT	Mason	80 min
May 27, 10:20 PM CDT	Flash Flood Warning	SJT	McCulloch	2 hr
May 27, 10:20 PM CDT	Severe Thunderstorm Warning	SJT	Kimble	55 min
May 27, 10:29 PM CDT	Severe Thunderstorm Warning	SJT	San Saba	61 min
May 27, 11:14 PM CDT	Severe Thunderstorm Warning	SJT	Kimble	46 min
May 28, 6:58 AM CDT	Flash Flood Warning	SJT	Shackelford	2 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; the sounding from the Mesonet's radiosonde archive.