Alert archive / Texas / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 40, NWS San Angelo, TX

April 11, 2001Menard County, Schleicher County, Texas

NWS San Angelo, TX issued this severe thunderstorm warning at Apr 11, 2001, 12:24 AM CDT for Menard County, Schleicher County, Texas. It was in force for 66 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 11, 2001, 12:24 AM CDT (05:24 UTC)
Expired: Apr 11, 2001, 1:30 AM CDT
In force: 66 min
Issued by: NWS San Angelo, TX
Area: Whole counties

Counties Menard County, TX, Schleicher County, TX

The radar

The San Angelo radar (KSJT), 61 km from the middle of the area, began a volume at 05:26 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

Time	Report	Where	Remark
Apr 11, 1:05 AM CDT	Thunderstorm Wind	Menard, TX	Large tree limbs downed by high 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.

Issued	Product	Office	Lasted
Apr 10, 9:30 PM CDT	Tornado Watch	SPC	6 hr

The nearest sounding before it

Del Rio, TX (KDRT), launched 00:00Z, 5.4 hours before the alert went out and 181 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: 2079 J/kg
Mixed-layer CIN: -141 J/kg
Mixed-layer LCL: 1691 m above ground
0-6 km bulk shear: 61 kt
0-1 km storm-relative helicity: 129 m²/s²
0-3 km storm-relative helicity: 259 m²/s²
Significant tornado parameter: 0.3
Supercell composite: 3.0

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, 1 hour 39 minutes earlier.

Area forecast discussion, Apr 10, 10:45 PM CDT, 1 hour 39 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.

Issued	Product	Office	Counties	Lasted
Apr 10, 9:33 PM CDT	Severe Thunderstorm Warning	SJT	Fisher, Jones	42 min
Apr 10, 9:49 PM CDT	Severe Thunderstorm Warning	SJT	Irion	41 min
Apr 10, 9:53 PM CDT	Severe Thunderstorm Warning	SJT	Sutton	67 min
Apr 10, 10:15 PM CDT	Severe Thunderstorm Warning	SJT	Haskell	45 min
Apr 10, 10:20 PM CDT	Tornado Warning	SJT	Sutton	40 min
Apr 10, 10:42 PM CDT	Severe Thunderstorm Warning	SJT	Irion	48 min
Apr 10, 10:50 PM CDT	Tornado Warning	SJT	Kimble, Menard	55 min
Apr 10, 10:52 PM CDT	Severe Thunderstorm Warning	SJT	Tom Green	38 min
Apr 10, 11:32 PM CDT	Severe Thunderstorm Warning	SJT	Concho, Runnels	58 min
Apr 11, 12:04 AM CDT	Severe Thunderstorm Warning	SJT	Coleman	56 min
Apr 11, 1:13 AM CDT	Severe Thunderstorm Warning	SJT	Runnels	62 min
Apr 11, 2:59 AM CDT	Severe Thunderstorm Warning	SJT	McCulloch	31 min

Nearby

Severe Thunderstorm Warnings in Texas, 2001 Every 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.