Alert archive / Texas / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 191, NWS San Angelo, TX

May 27, 2002Concho County, Texas

NWS San Angelo, TX issued this severe thunderstorm warning at May 27, 2002, 8:25 PM CDT for Concho County, Texas. It was in force for 65 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 27, 2002, 8:25 PM CDT (01:25 UTC)
Expired: May 27, 2002, 9:30 PM CDT
In force: 65 min
Issued by: NWS San Angelo, TX
Area: Counties, with a storm outline in the text

County Concho County, TX

What was reported inside it

Time	Report	Where	Remark
May 27, 9:30 PM CDT	Hail 1.75	Eden, TX	Golf ball size hail was reported just north of Eden.

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 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

Midland Regional, TX (KMAF), launched 00:00Z, 1.4 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: 764 J/kg
Mixed-layer CIN: -129 J/kg
Mixed-layer LCL: 2039 m above ground
0-6 km bulk shear: 40 kt
0-1 km storm-relative helicity: 40 m²/s²
0-3 km storm-relative helicity: 77 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.7

Open this sounding in Storm Lab

The text

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

000 
WUUS54 KSJT 280125
SVRSJT
TXC095-280230-

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

THE NATIONAL WEATHER SERVICE IN SAN ANGELO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CONCHO COUNTY IN SOUTHWEST TEXAS

* UNTIL 930 PM CDT

* AT 822 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 18 MILES WEST OF PAINT ROCK...OR ABOUT 14 MILES
  NORTHEAST OF SAN ANGELO...MOVING SOUTHEAST AT 35 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
   PAINT ROCK AT 840 PM CDT
   MILLERSVIEW AT 900 PM CDT
   EDEN AT 905 PM CDT

DAMAGING WINDS IN EXCESS OF 65 MPH AND LARGE HAIL TO GOLFBALL SIZE 
ARE LIKELY. GO INSIDE A STURDY BUILDING AND STAY AWAY FROM WINDOWS. 
HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE INTO AREAS WHERE 
WATER COVERS THE ROAD.

LAT...LON 3155 10007 3132 10011 3111 9963 3140 9961

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, 7:48 PM CDT, 37 minutes earlier.

Area forecast discussion, May 27, 7:48 PM CDT, 37 minutes before

WEST CENTRAL TEXAS FORECAST DISCUSSION...CORRECTED UPDATE
NATIONAL WEATHER SERVICE SAN ANGELO TX
748 PM CDT MON MAY 27 2002

RECENTLY ISSUED SEVERE THUNDERSTORM WATCH #349 REPLACES THE TORNADO
WATCH #343 FOR MOST OF OUR COUNTIES (EXCEPT HASKELL AND THROCKMORTON
COUNTIES). WILL SEND A ZONE UPDATE TO ACCOUNT FOR THE NEW SEVERE
THUNDERSTORM WATCH. THUNDERSTORM THREAT TO END AROUND MIDNIGHT OR
SHORTLY THEREAFTER.

.SJT...SEVERE THUNDERSTORM WATCH FOR ALL OF WEST CENTRAL TEXAS EXCEPT
HASKELL AND THROCKMORTON COUNTIES UNTIL MIDNIGHT.

19

In the hours before

Local storm report, May 27, 6:03 PM CDT, 2 hours 22 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

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, 8:44 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, 9:45 PM CDT	Severe Thunderstorm Warning	SJT	Schleicher	45 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.