Alert archive / Texas / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 82, NWS San Angelo, TX

May 17, 2001Haskell County, Texas

NWS San Angelo, TX issued this severe thunderstorm warning at May 17, 2001, 7:56 PM CDT for Haskell County, Texas. It was in force for 49 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: May 17, 2001, 7:56 PM CDT (00:56 UTC)
Expired: May 17, 2001, 8:45 PM CDT
In force: 49 min
Issued by: NWS San Angelo, TX
Area: Whole counties; the outline is the Mesonet’s reconstruction

County Haskell County, TX

What was reported inside it

Time	Report	Where	Remark
May 17, 8:30 PM CDT	Hail 1.75	Rule, TX	Hail up to the size of golf balls fell in the community of Rule for at least 15 minutes, as a severe storm remained nearly stationary across western Haskell County.

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 nearest sounding before it

Fort Worth, TX (KFWD), launched 00:00Z, 0.9 hours before the alert went out and 231 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: 2160 J/kg
Mixed-layer CIN: -170 J/kg
Mixed-layer LCL: 1350 m above ground
0-6 km bulk shear: 23 kt
0-1 km storm-relative helicity: -21 m²/s²
0-3 km storm-relative helicity: 155 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

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 May 17, 3:10 PM CDT, 4 hours 46 minutes earlier.

Area forecast discussion, May 17, 3:10 PM CDT, 4 hours 46 minutes before

WEST CENTRAL TEXAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN ANGELO TX
310 PM CDT THU MAY 17 2001

THE LOCATION OF WEAK COLD FRONT...STRENGTH OF CAP...AND POSSIBLE
INFLUENCE OF EMBEDDED UPPER IMPULSES WILL BEAR MONITORING FOR
THUNDERSTORM POSSIBILITY NEXT COUPLE OF DAYS. A SURFACE OUTFLOW
BOUNDARY HAS DRIFTED SOUTH INTO BIG COUNTRY...BUT THINK THE STRENGTH
OF CAP WILL PREVENT DEVELOPMENT THIS AFTERNOON/EVENING. WILL INSERT A
LOW POP FOR NORTHERNMOST COUNTIES OVERNIGHT...WHERE A FEW STORMS MAY
MOVE IN FROM THE NORTHWEST ALONG/AHEAD OF WEAK COLD FRONT. FRONT
PROGGED TO DRIFT SOUTH INTO CENTRAL COUNTIES ON FRIDAY...BEFORE
BECOMING NEARLY STATIONARY WITH LITTLE MOVEMENT INTO SATURDAY. WILL
CARRY LOW CHANCE POP OVER NORTHERN AND CENTRAL COUNTIES FRI...BUT CAP
STRENGTH MAY INHIBIT DEVELOPMENT. ETA BRINGS IN AN UPPER IMPULSE FRI
AFTERNOON...AND LIFT FROM THIS FEATURE MAY BE SUFFICIENT TO OVERCOME
CAP. WILL ALSO CARRY A LOW CHANCE POP FRI NIGHT AND SATURDAY ACROSS
NORTHERN AND CENTRAL COUNTIES...WITH PROXIMITY OF FRONT...SUFFICIENT
MOISTURE AND UNSTABLE AIRMASS.

IN THE EXTENDED...UPPER LOW OVER BAJA CA/NORTHERN MEXICO TO WEAKEN
WITH REMNANTS EJECTING ENE INTO TX. ANOTHER SURFACE FRONT/TROUGH ALSO
PROGGED TO MOVE SOUTHEAST INTO TX SUNDAY. WILL RETAIN SLIGHT CHANCE
POPS SUN...AND THIS MAY NEED TO BE UPGRADED IF LATER MODEL RUNS ARE
CONSISTENT WITH MOISTURE AVAILABILITY. STRONG UPPER TROUGH TO DIG SSE
INTO PLAINS EARLY NEXT WEEK...WITH ASSOCIATED COLD FRONT MOVING SOUTH
ACROSS OUR CWFA MONDAY. WILL INSERT SLIGHT CHANCE POP FOR MON WITH
THIS STRONGER FRONTT.

ABI 071/087/065/090 1322
SJT 070/092/068/095 0222
JCTB 068/093/069/094 0111

.SJT...NONE.

19

In the hours before

Special weather statement, May 17, 2:14 PM CDT, 5 hours 42 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
May 17, 7:14 PM CDT	Severe Thunderstorm Warning	SJT	Haskell	46 min
May 17, 8:19 PM CDT	Tornado Warning	SJT	Haskell	26 min
May 17, 8:42 PM CDT	Severe Thunderstorm Warning	SJT	Haskell	48 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.