Alert archive / Texas / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 37, NWS San Angelo, TX

April 10, 2001Tom Green County, Texas

NWS San Angelo, TX issued this severe thunderstorm warning at Apr 10, 2001, 10:52 PM CDT for Tom Green County, Texas. It was in force for 38 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Apr 10, 2001, 10:52 PM CDT (03:52 UTC)
Expired
Apr 10, 2001, 11:30 PM CDT
In force
38 min
Issued by
NWS San Angelo, TX
Area
Whole counties

County Tom Green County, TX

The radar

The San Angelo radar (KSJT), 5 km from the middle of the area, began a volume at 03:51 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.

What was reported inside it

TimeReportWhereRemark
Apr 10, 11:15 PM CDTThunderstorm WindSan Angelo, TXNumerous signs downed by strong thunderstorm winds.

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.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Apr 10, 8:45 PM CDTTornado WatchSPC3 hr

The nearest sounding before it

Midland Regional, TX (KMAF), launched 00:00Z, 3.9 hours before the alert went out and 175 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 2001-04-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 740 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 00:00Z on 2001-04-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 131 square meters per square second.1939587897117136Sfc1 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
740 J/kg
Mixed-layer CIN
-69 J/kg
Mixed-layer LCL
2429 m above ground
0-6 km bulk shear
78 kt
0-1 km storm-relative helicity
131 m²/s²
0-3 km storm-relative helicity
111 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.8

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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 Apr 10, 10:45 PM CDT, 7 minutes earlier.

Area forecast discussion, Apr 10, 10:45 PM CDT, 7 minutes before
WEST CENTRAL TEXAS FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE SAN ANGELO TX
1045 PM CDT TUE APR 10 2001

UPDATED CURRENT PACKAGE TO REFLECT LATEST TORNADO WATCHES. IN
ADDITION...BASED ON STRONG WINDS ACROSS WEST TEXAS...HAVE INCLUDED A
WIND ADVISORY FOR ALL ZONES TONIGHT.

.SJT...TORNADO WATCH UNTIL MIDNIGHT ZONES 49-54-64-65-71-72-76>78
       TORNADO WATCH UNTIL 1 AM ZONES 98-99-113-114-127-128-
                                      66-139-140-73-154-155-168>170
       WIND ADVISORY ALL ZONES THROUGH 3 AM.
       FIRE WEATHER WATCH FOR ALL ZONES ON WEDNESDAY.

HUBER

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 10, 9:33 PM CDTSevere Thunderstorm WarningSJTFisher, Jones42 min
Apr 10, 9:49 PM CDTSevere Thunderstorm WarningSJTIrion41 min
Apr 10, 9:53 PM CDTSevere Thunderstorm WarningSJTSutton67 min
Apr 10, 10:15 PM CDTSevere Thunderstorm WarningSJTHaskell45 min
Apr 10, 10:20 PM CDTTornado WarningSJTSutton40 min
Apr 10, 10:42 PM CDTSevere Thunderstorm WarningSJTIrion48 min
Apr 10, 10:50 PM CDTTornado WarningSJTKimble, Menard55 min
Apr 10, 11:32 PM CDTSevere Thunderstorm WarningSJTConcho, Runnels58 min
Apr 11, 12:04 AM CDTSevere Thunderstorm WarningSJTColeman56 min
Apr 11, 12:24 AM CDTSevere Thunderstorm WarningSJTMenard, Schleicher66 min
Apr 11, 1:13 AM CDTSevere Thunderstorm WarningSJTRunnels62 min
Apr 11, 2:59 AM CDTSevere Thunderstorm WarningSJTMcCulloch31 min

Nearby

Severe Thunderstorm Warnings in Texas, 2001Every severe thunderstorm warning in 2001

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; radar from the NEXRAD Level II archive.