Alert archive / Texas / Tornado Warnings in 2003

Tornado Warning 53, NWS San Angelo, TX

June 11, 2003Tom Green County, Texas

NWS San Angelo, TX issued this tornado warning at Jun 11, 2003, 8:17 PM CDT for Tom Green County, Texas. It was in force for 58 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
Jun 11, 2003, 8:17 PM CDT (01:17 UTC)
Expired
Jun 11, 2003, 9:15 PM CDT
In force
58 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 tornado 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
Jun 11, 3:55 PM CDTTornado WatchSPC5 hr
Jun 11, 8:15 PM CDTTornado WatchSPC6 hr

The nearest sounding before it

Midland Regional, TX (KMAF), launched 00:00Z, 1.3 hours before the alert went out and 186 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 00:00Z on 2003-06-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 10 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Midland Regional, TX at 00:00Z on 2003-06-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 32 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
10 J/kg
Mixed-layer CIN
-119 J/kg
Mixed-layer LCL
3976 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
32 m²/s²
0-3 km storm-relative helicity
82 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
WFUS54 KSJT 120117
TORSJT
TXC451-120215-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE SAN ANGELO TX
808 PM CDT WED JUN 11 2003

THE NATIONAL WEATHER SERVICE IN SAN ANGELO HAS ISSUED A

* TORNADO WARNING FOR...
  TOM GREEN COUNTY IN SOUTHWEST TEXAS

* UNTIL 915 PM CDT

* AT 802 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  THUNDERSTORM WITH STRONG ROTATION CAPABLE OF PRODUCING A TORNADO AT
  ANY TIME 3 MILES NORTHEAST OF SAN ANGELO AT THE INTERSECTION OF    
  HIGHWAY 67 AND 277...MOVING EAST AT 10 MPH.

* THE TORNADO IS EXPECTED TO BE NEAR...
   VERIBEST AT 830 PM CDT
   MERETA AT 900 PM CDT

A TORNADO MAY FORM AT ANY TIME. TAKE COVER NOW ABANDON MOBILE HOMES
AND VEHICLES FOR MORE SUBSTANTIAL SHELTER.

DO NOT USE YOUR CAR TO TRY TO OUTRUN A TORNADO. LEAVE THE CAR AND GO
TO A STRONG BUILDING. IF NO STRUCTURE IS NEARBY...LIE FLAT IN A DITCH
AND COVER YOUR HEAD. HIGHWAY OVERPASSES ARE UNSAFE. DO NOT SEEK
REFUGE IN AN OVERPASS.

LAT...LON 3163 10040 3145 10047 3134 10013 3156 10013
          3158 10025

$$

17

What forecasters said that day

The local office's own words before this tornado 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 tornado warning went out at Jun 11, 2:16 PM CDT, 6 hours 1 minute earlier.

Area forecast discussion, Jun 11, 2:16 PM CDT, 6 hours 1 minute before
WEST CENTRAL TEXAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN ANGELO TX
300 PM CDT TUE JUN 10 2003

CHANCES ARE LOOKING BETTER THIS AFTERNOON FOR PRECIP AS CONVECTIVE
INHIBITION DECREASES AND DRY LINE MIXES EAST AND INTERACTS WITH OLD
OUTFLOW BOUNDARY ACROSS THE NORTHERN CWA. LATEST SURFACE OBS HAS DRY
LINE EXTENDING FROM EAST OF FORT STOCKTON TO THE CENTRAL PANHANDLE
WITH STORMS ALREADY KICKING UP WEST OF CROCKETT COUNTY...ALTHOUGH
INTENSITY OF STORMS HAVE DECREASED THE LAST SEVERAL SCANS. ACTIVITY
THAT DOES DEVELOP LATER SHOULD REMAIN ISOLATED BUT COULD EASILY
REACH SEVERE CRITERIA WITH LARGE HAIL AND HIGH WINDS. CHANCE OF
STORMS WILL CONTINUE INTO THIS EVENING AS DRY LINE CONTINUES TO EDGE
EAST POSSIBLY AS FAR AS THE WESTERN CWA. THIS EVENING SHOULD ALSO
SEE AN INCREASE IN LLJ ACTIVITY WITH A SHORTWAVE TROF ADVERTISED BY
THE LATEST MESO ETA CROSSING THE CWA EMBEDDED IN WEST WINDS ALOFT.

PERIODIC IMPULSES EMBEDDED IN THE WEST FLOW ALOFT AND AN ACTIVE
DRYLINE WILL KEEP A CHANCE OF PRECIP IN THE FORECAST INTO THE
WEEKEND. AS THE WEAK UPPER RIDGE OVER TEXAS CONTINUES TO BREAK
DOWN... AVN BRINGS A COLD FRONT THROUGH THE AREA DURING THE DAY ON
SUNDAY WITH GOOD CHANCE OF ACCOMPANYING PRECIP AND A RETURN TO A
NORTHWEST FLOW ALOFT. AS UPPER TROUGH AXIS DEVELOPS FROM EASTERN
TEXAS TO THE GREAT LAKES INTO THE BEGINNING OF NEXT WEEK THE AREA
WILL CONTINUE UNDER THE INFLUENCE OF A NORTHWEST FLOW ALOFT. GIVEN A
SERIES OF SHORTWAVE TROUGH PASSAGES EMBEDDED THIS NORTHWEST FLOW
THROUGH THE EXTENDED....CHANCE OF PRECIP WILL CONTINUE. MRF BEGINS
TO BUILD AN UPPER RIDGE OVER SOUTHERN ROCKIES BY THE END OF NEXT
WEEK WHICH SHOULD SHUNT PRECIP TO OUR EAST.

ABI 071/094/071/095 3232
SJT 071/095/072/095 3222
JCT 072/094/074/094 3222

.SJT...NONE.

15
Hazardous weather outlook, Jun 11, 3:45 PM CDT, 4 hours 32 minutes before
TXZ049-054-064>066-071>073-076>078-098-099-113-114-127-128-139-140-
154-155-168>170-122030-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SAN ANGELO TX
345 PM CDT WED JUN 11 2003

THIS HAZARDOUS WEATHER OUTLOOK IS FOR WEST CENTRAL TEXAS.

.DAY ONE...
THERE IS A MODERATE RISK FOR SEVERE THUNDERSTORMS LATE THIS
AFTERNOON AND TONIGHT ALONG AND EAST OF A LINE FROM SONORA...TO
SAN ANGELO AND HASKELL. TO THE WEST OF THIS LINE...THERE IS A SLIGHT
RISK FOR SEVERE THUNDERSTORMS. THE ATMOSPHERE ACROSS WEST CENTRAL
HAS BECOME EXTREMELY MOIST AND UNSTABLE. THE DRYLINE WILL PROVIDE
THE FOCUS...AS IT PUSHES INTO THE OZONA...STERLING CITY AND
SWEETWATER LINE AREAS. A FAST MOVING DISTURBANCE IN ZONAL FLOW
ALOFT WILL PROVIDE UPPER SUPPORT.

DAMAGING WINDS AND LARGE HAIL WILL BE THE MAIN THREATS...BUT
ISOLATED TORNADOES CANNOT BE RULED OUT. FLASH FLOODING IS ALSO A
CONCERN AS HOURLY RAINFALL RATES EXCEED ONE INCH.

.DAYS TWO THROUGH SEVEN...
SEVERE THUNDERSTORMS ARE AGAIN POSSIBLE THURSDAY AND FRIDAY...AS THE
ATMOSPHERE REMAINS VERY MOIST AND UNSTABLE. BY THE WEEKEND...
NORTHWEST FLOW ALOFT COULD BRING MORE THUNDERSTORMS. NEEDLESS TO
SAY...SEVERE AND FLASH FLOOD POTENTIAL CONTINUES.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL BE LIKELY.

17

In the hours before

Local storm report, Jun 11, 6:03 PM CDT, 2 hours 14 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SAN ANGELO TX
0603 PM CDT WED JUN 11 2003

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

0558 PM    STERLING CITY             TX   1.75 IN HAIL
06/11/03   STERLING                       REPORTED BY TRAINED
                                          SKYWARN SPOTTERS.

GUERRERO
Local storm report, Jun 11, 7:17 PM CDT, 1 hour before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SAN ANGELO TX
0717 PM CDT WED JUN 11 2003

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

0711 PM    CLYDE                     TX   1.75 IN HAIL
06/11/03   CALLAHAN

0710 PM    12 SW ROBERT LEE          TX   0.75 IN HAIL
06/11/03   COKE

0657 PM    14 SW CLYDE               TX   1.75 IN HAIL
06/11/03   TAYLOR

BRAZZELL

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 11, 7:11 PM CDTTornado WarningSJTCoke, Tom Green64 min
Jun 11, 7:15 PM CDTSevere Thunderstorm WarningSJTHaskell60 min
Jun 11, 7:17 PM CDTSevere Thunderstorm WarningSJTTaylor58 min
Jun 11, 7:20 PM CDTSevere Thunderstorm WarningSJTMenard55 min
Jun 11, 7:31 PM CDTSevere Thunderstorm WarningSJTShackelford59 min
Jun 11, 7:32 PM CDTFlash Flood WarningSJTHaskell3 hr
Jun 11, 7:37 PM CDTSevere Thunderstorm WarningSJTColeman53 min
Jun 11, 7:48 PM CDTTornado WarningSJTHaskell, Throckmorton57 min
Jun 11, 7:56 PM CDTTornado WarningSJTCallahan, Coleman64 min
Jun 11, 7:58 PM CDTSevere Thunderstorm WarningSJTConcho62 min
Jun 11, 8:09 PM CDTTornado WarningSJTTom Green66 min
Jun 11, 8:15 PM CDTSevere Thunderstorm WarningSJTRunnels60 min
Jun 11, 8:27 PM CDTFlash Flood WarningSJTCallahan93 min
Jun 11, 8:33 PM CDTSevere Thunderstorm WarningSJTHaskell57 min
Jun 11, 8:43 PM CDTFlash Flood WarningSJTRunnels3 hr
Jun 11, 8:53 PM CDTSevere Thunderstorm WarningSJTBrown67 min
Jun 11, 8:55 PM CDTSevere Thunderstorm WarningSJTColeman65 min
Jun 11, 9:07 PM CDTFlash Flood WarningSJTColeman113 min
Jun 11, 9:25 PM CDTFlash Flood WarningSJTBrown110 min
Jun 12, 6:34 PM CDTTornado WarningSJTThrockmorton41 min

Nearby

Tornado Warnings in Texas, 2003Every tornado warning in 2003Tornadoes 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.