Alert archive / Texas / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 21, NWS Amarillo, TX

March 7, 2000Donley County, Gray County, Texas

NWS Amarillo, TX issued this severe thunderstorm warning at Mar 7, 2000, 3:00 PM CST for Donley County, Gray County, Texas. It was in force for 60 min. 7 reports 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: Mar 7, 2000, 3:00 PM CST (21:00 UTC)
Expired: Mar 7, 2000, 4:00 PM CST
In force: 60 min
Issued by: NWS Amarillo, TX
Area: Whole counties

Counties Donley County, TX, Gray County, TX

The radar

The Amarillo radar (KAMA), 82 km from the middle of the area, began a volume at 21:02 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
Mar 7, 3:05 PM CST	Thunderstorm Wind 57 E	Pampa Lefors Arpt, TX
Mar 7, 3:23 PM CST	Hail 0.75	Pampa, TX
Mar 7, 3:25 PM CST	Hail 0.88	Alanreed, TX
Mar 7, 3:30 PM CST	Hail 0.75	Clarendon, TX
Mar 7, 3:30 PM CST	Thunderstorm Wind 60 E	Kings Mill, TX	Two steel grain bins had been blown onto railroad tracks.
Mar 7, 3:30 PM CST	Thunderstorm Wind 57 E	Hedley, TX	A roof was blown off of a barn.
Mar 7, 3:42 PM CST	Hail 0.75	Mc Lean, 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 watch it was issued in

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

Issued	Product	Office	Lasted
Mar 7, 2:30 PM CST	Tornado Watch	SPC	6 hr

The nearest sounding before it

Amarillo Airport, TX (KAMA), launched 12:00Z, 9.0 hours before the alert went out and 81 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: 609 J/kg
Mixed-layer CIN: -171 J/kg
Mixed-layer LCL: 680 m above ground
0-6 km bulk shear: 36 kt
0-1 km storm-relative helicity: 226 m²/s²
0-3 km storm-relative helicity: 217 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 1.3

Open this sounding in Storm Lab

The text

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

000 
WUUS54 KAMA 072102
SVRAMA
TXC129-179-072200-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE AMARILLO TX
300 PM CST TUE MAR 7 2000

THE NATIONAL WEATHER SERVICE IN AMARILLO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  DONLEY COUNTY IN THE TEXAS PANHANDLE
  GRAY COUNTY IN THE TEXAS PANHANDLE

* UNTIL 400 PM CST

* AT 301 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  SEVERE THUNDERSTORMS ALONG A LINE EXTENDING FROM 14 MILES NORTHWEST
  OF KINGSMILL TO 14 MILES SOUTH OF CLARENDON. THE LINE WAS MOVING EAST-
  NORTHEAST AT 35 MPH.

* SOME LOCATIONS AFFECTED BY THE STORM INCLUDE...
  PAMPA...MCLEAN...LELIA LAKE...LEFORS...LAKE MCCLELLAN...
  KINGSMILL...HOWARDWICK...HEDLEY...GREENBELT LAKE...CLARENDON AND
  ALANREED

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

DESTRUCTIVE WINDS CAN BE EXPECTED. IF YOU CANNOT GET UNDERGROUND...GO
TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A STURDY BUILDING. AVOID
WINDOWS!

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

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 7, 2:28 PM CST	Severe Thunderstorm Warning	AMA	Carson, Hutchinson, Moore, Potter	62 min
Mar 7, 2:35 PM CST	Severe Thunderstorm Warning	AMA	Armstrong	25 min
Mar 7, 2:55 PM CST	Severe Thunderstorm Warning	AMA	Hansford	65 min
Mar 7, 3:37 PM CST	Severe Thunderstorm Warning	AMA	Roberts	53 min
Mar 7, 3:45 PM CST	Severe Thunderstorm Warning	AMA	Wheeler	45 min
Mar 7, 3:49 PM CST	Severe Thunderstorm Warning	AMA	Ochiltree	56 min
Mar 7, 3:57 PM CST	Severe Thunderstorm Warning	AMA	Hemphill, Lipscomb	63 min

Nearby

Severe Thunderstorm Warnings in Texas, 2000 Every severe thunderstorm warning in 2000

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.