Alert archive / Texas / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 113, NWS Amarillo, TX

May 29, 2001Sherman County, Texas

NWS Amarillo, TX issued this severe thunderstorm warning at May 29, 2001, 7:07 PM CDT for Sherman County, Texas. It was in force for 38 min. No storm report in the archive falls 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.

The facts

Issued: May 29, 2001, 7:07 PM CDT (00:07 UTC)
Expired: May 29, 2001, 7:45 PM CDT
In force: 38 min
Issued by: NWS Amarillo, TX
Area: Whole counties; the outline is the Mesonet’s reconstruction

County Sherman County, TX

The radar

The Amarillo radar (KAMA), 122 km from the middle of the area, began a volume at 00:09 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.

The watch it was issued in

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

Issued	Product	Office	Lasted
May 29, 3:30 PM CDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Amarillo Airport, TX (KAMA), launched 00:00Z, 0.1 hours before the alert went out and 122 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: 2215 J/kg
Mixed-layer CIN: -77 J/kg
Mixed-layer LCL: 1261 m above ground
0-6 km bulk shear: 48 kt
0-1 km storm-relative helicity: 213 m²/s²
0-3 km storm-relative helicity: 279 m²/s²
Significant tornado parameter: 1.9
Supercell composite: 17.2

Open this sounding in Storm Lab

The text

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

000 
WUUS54 KAMA 300007
SVRAMA
TXC421-300045-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE AMARILLO TX
707 PM CDT TUE MAY 29 2001

THE NATIONAL WEATHER SERVICE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EASTERN SHERMAN COUNTY IN THE TEXAS PANHANDLE

* UNTIL 745 PM CDT

* AT 707 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 14 MILES SOUTH OF TEXHOMA...OR ABOUT 18 MILES
  EAST OF STRATFORD...MOVING EAST AT 35 MPH.

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

A TORNADO WATCH IS ALSO IN EFFECT. TORNADOES CAN DEVELOP SUDDENLY
FROM SEVERE THUNDERSTORMS.

LAT...LON 3649 10190 3607 10190 3608 10164 3649 10166

The office that day

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

Issued	Product	Office	Counties	Lasted
May 29, 7:10 PM CDT	Severe Thunderstorm Warning	AMA	Hutchinson	65 min
May 29, 7:14 PM CDT	Tornado Warning	AMA	Carson	61 min
May 29, 7:45 PM CDT	Tornado Warning	AMA	Gray	60 min
May 29, 7:52 PM CDT	Severe Thunderstorm Warning	AMA	Hansford	38 min
May 29, 8:10 PM CDT	Severe Thunderstorm Warning	AMA	Roberts	50 min
May 29, 8:52 PM CDT	Severe Thunderstorm Warning	AMA	Wheeler	38 min
May 29, 10:08 PM CDT	Severe Thunderstorm Warning	AMA	Gray, Roberts	52 min
May 29, 11:44 PM CDT	Severe Thunderstorm Warning	AMA	Collingsworth	46 min
May 30, 6:24 PM CDT	Severe Thunderstorm Warning	AMA	Deaf Smith, Oldham	51 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.