Alert archive / Texas / Severe Thunderstorm Warnings in 2004

Severe Thunderstorm Warning 252, NWS San Angelo, TX

October 13, 2004Irion County, Texas

NWS San Angelo, TX issued this severe thunderstorm warning at Oct 13, 2004, 4:54 PM CDT for Irion County, Texas. It was in force for 36 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
Oct 13, 2004, 4:54 PM CDT (21:54 UTC)
Expired
Oct 13, 2004, 5:30 PM CDT
In force
36 min
Issued by
NWS San Angelo, TX
Area
Counties, with a storm outline in the text

County Irion County, TX

The radar

The San Angelo radar (KSJT), 39 km from the middle of the area, began a volume at 21:56 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Midland Regional, TX (KMAF), launched 12:00Z, 9.9 hours before the alert went out and 148 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 2004-10-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3 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 2004-10-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -32 square meters per square second.19395878Sfc1 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
3 J/kg
Mixed-layer CIN
-162 J/kg
Mixed-layer LCL
1559 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
-32 m²/s²
0-3 km storm-relative helicity
31 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 
WUUS54 KSJT 132154 RRA
SVRSJT
TXC235-132230-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SAN ANGELO TX
454 PM CDT WED OCT 13 2004

THE NATIONAL WEATHER SERVICE IN SAN ANGELO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  IRION COUNTY IN SOUTHWEST TEXAS
  THIS INCLUDES THE CITY OF MERTZON

* UNTIL 530 PM CDT

* AT 454 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING NICKEL SIZE HAIL.  THIS
  STORM WAS LOCATED 7 MILES SOUTHWEST OF MERTZON...AND MOVING EAST AT
  15 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  SHERWOOD BY 500 PM CDT

LAT...LON 3131 10096 3113 10102 3110 10073 3135 10072

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 13, 4:22 PM CDTSevere Thunderstorm WarningSJTSterling53 min
Oct 13, 4:31 PM CDTSevere Thunderstorm WarningSJTKimble, Mason44 min
Oct 13, 4:54 PM CDTSevere Thunderstorm WarningSJTCoke51 min
Oct 13, 5:15 PM CDTSevere Thunderstorm WarningSJTNolan60 min
Oct 13, 5:43 PM CDTSevere Thunderstorm WarningSJTSchleicher62 min
Oct 13, 5:47 PM CDTSevere Thunderstorm WarningSJTCoke58 min
Oct 13, 6:05 PM CDTSevere Thunderstorm WarningSJTNolan40 min
Oct 13, 6:14 PM CDTSevere Thunderstorm WarningSJTSterling46 min
Oct 13, 6:26 PM CDTSevere Thunderstorm WarningSJTRunnels64 min
Oct 13, 6:39 PM CDTSevere Thunderstorm WarningSJTNolan, Taylor66 min
Oct 13, 6:43 PM CDTSevere Thunderstorm WarningSJTIrion, Tom Green77 min

Nearby

Severe Thunderstorm Warnings in Texas, 2004Every severe thunderstorm warning in 2004

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; radar from the NEXRAD Level II archive.