Alert archive / Texas / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 142, NWS Amarillo, TX

June 20, 2001Hutchinson County, Texas

NWS Amarillo, TX issued this severe thunderstorm warning at Jun 20, 2001, 8:26 PM CDT for Hutchinson County, Texas. It was in force for 34 min. 2 reports 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
Jun 20, 2001, 8:26 PM CDT (01:26 UTC)
Expired
Jun 20, 2001, 9:00 PM CDT
In force
34 min
Issued by
NWS Amarillo, TX
Area
Whole counties; the outline is the Mesonet’s reconstruction

County Hutchinson County, TX

The radar

The Amarillo radar (KAMA), 77 km from the middle of the area, began a volume at 01:26 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

TimeReportWhereRemark
Jun 20, 8:58 PM CDTHail 1Pringle, TX
Jun 20, 8:58 PM CDTThunderstorm Wind 52 EPringle, TX

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

Amarillo Airport, TX (KAMA), launched 00:00Z, 1.4 hours before the alert went out and 77 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, Amarillo Airport, TX at 00:00Z on 2001-06-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1103 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, Amarillo Airport, TX at 00:00Z on 2001-06-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -70 square meters per square second.193958Sfc1 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
1103 J/kg
Mixed-layer CIN
-50 J/kg
Mixed-layer LCL
2356 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
-70 m²/s²
0-3 km storm-relative helicity
17 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.1

Open this sounding in Storm Lab

The text

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

000 
WUUS54 KAMA 210127
SVRAMA
TXC233-210200-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE AMARILLO TX
826 PM CDT WED JUN 20 2001

THE NATIONAL WEATHER SERVICE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  HUTCHINSON COUNTY IN THE TEXAS PANHANDLE

* UNTIL 900 PM CDT

* AT 826 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 2 MILES WEST OF PRINGLE...OR ABOUT 21 MILES
  NORTH OF BORGER...MOVING EAST AT 10 MPH.

* SOME LOCATIONS AFFECTED BY THE STORM INCLUDE...
  BORGER...FRITCH...PRINGLE...SANFORD AND STINNETT

LARGE HAIL...DAMAGING WINDS...AND TORRENTIAL RAINS ARE EXPECTED WITH
THIS STORM. TAKE COVER IN A SUBYSTANTIAL SHELTER.

LAT...LON 3604 10159 3564 10161 3564 10111 3604 10110

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 Amarillo, TX wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 20, 3:15 PM CDT, 5 hours 11 minutes earlier.

Area forecast discussion, Jun 20, 3:15 PM CDT, 5 hours 11 minutes before
TEXAS/OKLAHOMA PANHANDLES FORECAST DISCUSSION
NATIONAL WEATHER SERVICE AMARILLO TX
315 PM CDT WED JUN 20 2001

FRONTAL BNDRY HAS ONCE AGAIN MOVD ACRS AMA...MOST RECENTLY AS A
WMFNT.  WMFNT EXTDS FM SWRN TX PNHDL TO NWRN OK.  EXPC THIS BNDRY
TO BCM SHARPER WITH CNVGN INCRG UPON IT DURG THE NGT AS IT MOVS
FARTHER NWD TO NRN SXNS OF FCST AREA...AND THEN BGNS SURGING SWD AS
A CDFNT BFR SR.  CNVGNC...DEEP UPSLP COMPONENT INCRG...SFC DWPTS
POOLING ON N SIDE OF FNT ALL POINT TWD GOOD OPPORTUNITY FOR TSTMS
ACRS PNHDLS TNGT.  UPR LVL DVGNC WL BE STRONGEST ACRS NRN ZNS AS H5
VOT MAX DROPS SEWD ACRS AREA.  THICKNESS DIFFLUENCE BEING FCST
INDCS ADDED POTENTIAL FOR ORGANIZED TSTMS SUPPORTED BY WAA.  H8
CDFNT WL MOV SWD ACRS PNHDLS BTN 04Z AND 12Z...WITH ADDITIONAL
CNVGNC ALG IT.  HVY RAINS TNGT PSBL ACRS NERN ZNS IF MCS DVLPS OVR
ERN CO AND MOVS SEWD.  NMRS TSTMS FCST TNGT IN NERN ZNS WITH SCT
TSTMS FCST ELSEWHERE.

ON THU...CLDS WL LINGER OVR SRN ZNS DURG MRNG AS UPSLP FLOW PVLS.
GREATEST INSTBY WL BE OVR WRN AND SRN ZNS IN AREA MOST REMOVED FM
INCOMING SFC RDG BHND CDNFT.  WL KEEP SLGT CHC TSTMS IN WRN ZNS THU
AFTN AND EVE...AND WL REMOVE FM OTHER SXNS.  SLY FLOW RESUMES ON FRI
WITH WARMUP BGNG. INSTBY RETURNS AND WL RETAIN SLGT CHC TSTMS FRI AND
FRI NGT.

DURG EXTDD...NO MAJOR DEPARTURE FM PREVIOUS FCST.  WM CONDS WITH
RESIDUAL LOW-LVL MSTR WITH SLGT CHC DIURNAL TSTMS.  03

.AMA...
TX...NONE.
O?K...NONE.

COCKRELL

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 20, 7:44 PM CDTSevere Thunderstorm WarningAMADeaf Smith61 min
Jun 20, 8:02 PM CDTFlash Flood WarningAMADeaf Smith118 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.