Alert archive / Texas / Severe Thunderstorm Warnings in 2003

Severe Thunderstorm Warning 271, NWS San Angelo, TX

August 22, 2003Tom Green County, Texas

NWS San Angelo, TX issued this severe thunderstorm warning at Aug 22, 2003, 5:19 PM CDT for Tom Green County, Texas. It was in force for 56 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: Aug 22, 2003, 5:19 PM CDT (22:19 UTC)
Expired: Aug 22, 2003, 6:15 PM CDT
In force: 56 min
Issued by: NWS San Angelo, TX
Area: Counties, with a storm outline in the text

County Tom Green 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 nearest sounding before it

Midland Regional, TX (KMAF), launched 12:00Z, 10.3 hours before the alert went out and 180 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: 138 J/kg
Mixed-layer CIN: -129 J/kg
Mixed-layer LCL: 1699 m above ground
0-6 km bulk shear: 18 kt
0-1 km storm-relative helicity: -56 m²/s²
0-3 km storm-relative helicity: -1 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.4

Open this sounding in Storm Lab

The text

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

000 
WUUS54 KSJT 222219
SVRSJT
TXC451-222315-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SAN ANGELO TX
519 PM CDT FRI AUG 22 2003

THE NATIONAL WEATHER SERVICE IN SAN ANGELO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  TOM GREEN COUNTY IN WEST CENTRAL TEXAS

* UNTIL 615 PM CDT

* AT 517 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 8 MILES SOUTH OF WALL...OR ABOUT 14 MILES
  SOUTHEAST OF SAN ANGELO...MOVING WEST AT 25 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
   CHRISTOVAL AT 530 PM CDT
   SAN ANGELO AT 540 PM CDT
   DOVE CREEK...KNICKERBOCKER AT 550 PM CDT
   TANKERSLEY...GRAPE CREEK AT 555 PM CDT
   CARLSBAD AT 605 PM CDT

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.

DAMAGING WINDS AND VERY HEAVY RAIN ARE LIKELY. GO INSIDE A STURDY
BUILDING AWAY FROOM CREEK BEDS AND FLOOD PRONE AREAS...AND STAY AWAY
FROM WINDOWS.

THIS STORM IS PRODUCING NUMEROUS LIGHTNING STRIKES. IF OUTDOORS...
STAY AWAY FROM ISOLATED HIGH OBJECTS SUCH AS TREES. GET OUT OF THE
WATER AND HEAD FOR SHORE. MOVE INDOORS IF POSSIBLE. WHEN INDOORS...
STAY AWAY FROM WINDOWS AND AVOID USE OF PHONES OR ELECTRICAL
APPLIANCES.

LAT...LON 3112 10065 3115 10014 3153 10015 3163 10067

$$

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 Aug 22, 3:00 PM CDT, 2 hours 19 minutes earlier.

Area forecast discussion, Aug 22, 3:00 PM CDT, 2 hours 19 minutes before

WEST CENTRAL TEXAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN ANGELO TX
300 PM CDT FRI AUG 22 2003

UPPER RIDGE NOW CENTERED OVER CENTRAL PLAINS. ISOLATED SHOWERS AND
THUNDERSTORMS HAVE FIRED UP OVER MOST OF WEST CENTRAL TEXAS WITHIN
THE LAST SEVERAL HOURS. LARGEST AREA OF STORMS IS ASSOCIATED WITH
WESTWARD MOVING UPPER LEVEL SHORT WAVE MOVING INTO THE EASTERN
COUNTIES. DISTURBANCE SHOULD BE THROUGH CWA BY LATE THIS EVENING...
WILL PUT NOTE IN ZONES MENTIONING THUNDERSTORM ACTIVITY MAINLY
BEFORE MIDNIGHT. CENTER OF UPPER HIGH WILL BUILD SE TOWARD THE LOWER
MISSISSIPPI VALLEY THROUGH THE WEEKEND WITH EASTERLY WAVE ALONG THE
UPPER TEXAS COAST ROTATING QUICKLY WESTWARD TRACKING SOUTH OF THE
CWA. CONSEQUENTLY...BEST CHANCE OF RAINFALL WILL BE IN SOUTHERN
TIER OF OUR COUNTIES WILL LESSER CHANCES IN OUR NORTHERN COUNTIES.
AVN RAPIDLY MOVES UPPER WAVE WEST OF THE AREA BY THE END OF THE
WEEKEND SO CHANCES OF PRECIP WILL DECREASE FURTHER INTO THE WEEKEND.
HOWEVER...GIVEN FCSTD MOISTURE PROFILE WILL KEEP SLIGHT CHANCE OF
POPS THROUGH MID WEEK BUT WILL IGNORE RAMP UP ON TUESDAY ASSOCIATED
WITH EXPECTED FRONTAL PASSAGE...AT LEAST UNTIL WE GET CLOSER TO THE
EVENT.

PRELIMS...
ABI 071/095/071/098 3222
SJT 070/094/069/096 3222
JCT 070/093/069/096 4322

.SJT...NONE.

15

Hazardous weather outlook, Aug 22, 2:04 PM CDT, 3 hours 15 minutes before

TXZ049-054-064>066-071>073-076>078-098-099-113-114-127-128-139-140-
154-155-168>170-231900-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SAN ANGELO TX
204 PM CDT FRI AUG 22 2003

THIS HAZARDOUS WEATHER OUTLOOK IS FOR WEST CENTRAL TEXAS.

.DAY ONE...

SCATTERED THUNDERSTORMS WILL CONTINUE TO DEVELOP ACROSS MUCH OF WEST
CENTRAL TEXAS THROUGH THIS EVENING. ALTHOUGH WIDESPREAD SEVERE
WEATHER IS NOT EXPECTED...BRIEF HEAVY RAINFALL...WIND GUSTS TO 45
MPH...AND FREQUENT LIGHTNING CAN BE EXPECTED. THE STORMS SHOULD
PERSIST THROUGH SUNSET...THEN SLOWLY BEGIN TO DISSIPATE THROUGH THE
EARLY MORNING HOURS.

.DAYS TWO THROUGH SEVEN...

A WEAK UPPER LEVEL DISTURBANCE WILL DRIFT SLOWLY ACROSS WEST CENTRAL
TEXAS THROUGH SUNDAY...HELPING DEVELOP SCATTERED THUNDERSTORMS
ACROSS THE AREA EACH AFTERNOON. AGAIN...ALTHOUGH NONE OF THESE
STORMS WILL LIKELY REACH SEVERE LEVELS...FREQUENT LIGHTNING WILL BE
LIKELY WITH THE STRONGER STORMS.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT ANTICIPATED.

07

In the hours before

Local storm report, Aug 22, 3:44 PM CDT, 1 hour 35 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SAN ANGELO TX
0344 PM CDT FRI AUG 22 2003

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

0340 PM    BROWNWOOD                 TX   WIND DAMAGE
08/22/03   BROWN                          TREES AND POWER LINES DOWN

08

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 22, 3:02 PM CDT	Severe Thunderstorm Warning	SJT	Brown	58 min
Aug 22, 3:12 PM CDT	Severe Thunderstorm Warning	SJT	Taylor	63 min
Aug 22, 3:48 PM CDT	Severe Thunderstorm Warning	SJT	Haskell, Jones	42 min
Aug 22, 4:25 PM CDT	Severe Thunderstorm Warning	SJT	Coke, Nolan	50 min
Aug 22, 4:28 PM CDT	Severe Thunderstorm Warning	SJT	Concho	62 min
Aug 22, 4:54 PM CDT	Severe Thunderstorm Warning	SJT	Fisher	51 min
Aug 22, 5:58 PM CDT	Severe Thunderstorm Warning	SJT	Sterling	47 min
Aug 22, 5:58 PM CDT	Severe Thunderstorm Warning	SJT	Kimble	62 min

Nearby

Severe Thunderstorm Warnings in Texas, 2003 Every severe thunderstorm warning in 2003

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.