Alert archive / Texas / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 20, NWS Lubbock, TX

April 4, 2001Terry County, Texas

NWS Lubbock, TX issued this severe thunderstorm warning at Apr 4, 2001, 10:37 PM CDT for Terry County, Texas. It was in force for 38 min. 1 report came from inside the area while it was in force.

The area

The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties, with what was reported inside it.

The facts

Issued: Apr 4, 2001, 10:37 PM CDT (03:37 UTC)
Expired: Apr 4, 2001, 11:15 PM CDT
In force: 38 min
Issued by: NWS Lubbock, TX
Area: Whole counties; the outline is the Mesonet’s reconstruction

County Terry County, TX

What was reported inside it

Time	Report	Where	Remark
Apr 4, 10:55 PM CDT	Hail 1.75	Union, TX	Golfball size hail was reported by law enforcement officials.

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

Midland Regional, TX (KMAF), launched 00:00Z, 3.6 hours before the alert went out and 133 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: 1780 J/kg
Mixed-layer CIN: -22 J/kg
Mixed-layer LCL: 2069 m above ground
0-6 km bulk shear: 53 kt
0-1 km storm-relative helicity: 125 m²/s²
0-3 km storm-relative helicity: 197 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 7.7

Open this sounding in Storm Lab

The text

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

000 
WUUS54 KLUB 050337
SVRLBB
TXC445-050415-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LUBBOCK TX
1037 PM CDT WED APR 4 2001

THE NATIONAL WEATHER SERVICE IN LUBBOCK HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  TERRY COUNTY IN NORTHWEST TEXAS

* UNTIL 1115 PM CDT

* AT 1035 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM OVER UNION...OR ABOUT 9 MILES SOUTH OF
  BROWNFIELD...MOVING NORTHEAST AT 20 MPH.

* SOME LOCATIONS IN OR NEAR THE PATH OF THE STORM INCLUDE...
  UNION...
  BROWNFIELD...
  LOCKETVILLE...

IF SEVERE WEATHER APPROACHES YOUR AREA...GO INSIDE A STURDY SHELTER.
REMEMBER...A SEVERE THUNDERSTORM CAN PRODUCE LARGE HAIL...DAMAGING
WINDS...DEADLY LIGHTNING...AND HEAVY RAIN.

TO REPORT SEVERE WEATHER...PLEASE CALL THE NATIONAL WEATHER SERVICE
AT 8 0 6 7 4 5 4 2 6 0.

LAT...LON 3298 10244 3299 10208 3338 10208 3338 10242
S

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 Lubbock, TX wrote its last area forecast discussion before this severe thunderstorm warning went out at Apr 4, 9:10 PM CDT, 1 hour 27 minutes earlier.

Area forecast discussion, Apr 4, 9:10 PM CDT, 1 hour 27 minutes before

AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE LUBBOCK TX
910 PM CDT WED APR 4 2001

ZONES UPDATED TO ADD MENITON OF THUNDERSTORMS OVER WESTERN PORTIONS
OF THE SOUTH PLAINS. DRYLINE CONTINUES TO RETREAT WESTWARD THIS
EVENING AND NOW NEARLY TO THE TEXAS/NEW MEXICO STATE LINE. DEW
POINTS CONTINUE TO INCREASE AND NOW IN THE MID TO UPPER 60S OVER THE
AREA. THERE MAY BE AN ISOLATED THUNDERSTORM THAT COULD BECOME
SEVERE...SEE SPC SWODY1 BUT WILL HOLD OFF ON MENTION OF SEVERE AT
THIS TIME...WILL CONTINUE TO MONITOR TREND. HAVE ALSO ADJUSTED WIND
DIRECTION IN A FEW AREAS AS DIRECTION HAS BECOME MORE SOUTHEAST.

UPPER LEVEL LOW CONTINUES TO SPIN OFF THE CALIFORNIA COAS)T THIS
EVENING AND MODELS CONTINUE TO SHOW SYSTEM TO MOVE INTO THE DESERT
SOUTHWEST LATE IN THE DAY THURSDAY.

.LUB...NONE.

XI

In the hours before

Local storm report, Apr 4, 10:17 PM CDT, 20 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LUBBOCK, TX
1017 PM CDT WED APR 4 2001

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

1010 PM    10NE OF BROWNFIELD  MEADOW TX     1.75 INCH HAIL
04/04/01   TERRY                             REPORTED BY
                                             LAW ENFORECEMENT

1013 PM    8 WEST OF LUBBOCK  TX             .75 INCH HAIL
04/04/01   LUBBOCK                           REPORTED BY
BY                                           TRAINED SPOTTERS

1010 PM    ROPESVILLE                TX   .75 INCH HAIL
04/04/01   HOCKLEY                        REPORTED BY LAW
       =                                   ENFORECMENT

WGH

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 4, 9:28 PM CDT	Severe Thunderstorm Warning	LUB	Hockley	47 min
Apr 4, 9:47 PM CDT	Severe Thunderstorm Warning	LUB	Terry	43 min
Apr 4, 10:04 PM CDT	Severe Thunderstorm Warning	LUB	Hale, Lubbock	41 min
Apr 4, 10:16 PM CDT	Severe Thunderstorm Warning	LUB	Hockley	29 min
Apr 4, 11:17 PM CDT	Severe Thunderstorm Warning	LUB	Lynn	43 min
Apr 4, 11:24 PM CDT	Severe Thunderstorm Warning	LUB	Hale	51 min
Apr 5, 12:11 AM CDT	Severe Thunderstorm Warning	LUB	Hale, Swisher	49 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.