Alert archive / Texas / Tornado Warnings in 2000

Tornado Warning 9, NWS San Angelo, TX

March 31, 2000Sterling County, Texas

NWS San Angelo, TX issued this tornado warning at Mar 31, 2000, 7:32 PM CST for Sterling County, Texas. It was in force for 43 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: Mar 31, 2000, 7:32 PM CST (01:32 UTC)
Expired: Mar 31, 2000, 8:15 PM CST
In force: 43 min
Issued by: NWS San Angelo, TX
Area: Whole counties; the outline is the Mesonet’s reconstruction

County Sterling County, TX

The radar

The Midland/Odessa radar (KMAF), 89 km from the middle of the area, began a volume at 01:32 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
Mar 31, 4:15 PM CST	Tornado Watch	SPC	6 hr

The nearest sounding before it

Midland Regional, TX (KMAF), launched 00:00Z, 1.5 hours before the alert went out and 90 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: 97 J/kg
Mixed-layer CIN: -89 J/kg
Mixed-layer LCL: 930 m above ground
0-6 km bulk shear: 79 kt
0-1 km storm-relative helicity: 260 m²/s²
0-3 km storm-relative helicity: 478 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.6

Open this sounding in Storm Lab

The text

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

000 
WFUS54 KSJT 010133
TORSJT
TXC431-010215-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE SAN ANGELO TX
732 PM CST FRI MAR 31 2000

THE NATIONAL WEATHER SERVICE IN SAN ANGELO HAS ISSUED A

* TORNADO WARNING FOR...
  STERLING COUNTY IN WEST CENTRAL TEXAS

* UNTIL 815 PM CST

* AT 730 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  DEVELOPING TORNADO 26 MILES WEST OF STERLING CITY...OR ABOUT 3
  MILES SOUTHEAST OF GARDEN CITY...MOVING EAST AT 30 MPH.

* THE TORNADO IS EXPECTED TO BE NEAR...
  STERLING CITY AT 805 PM CST

IN ADDITION TO THE THREAT OF A TORNADO...LARGE HAIL AND DAMAGING
WINDS CAN ALSO BE EXPECTED WITH THIS STORM.

IF YOU ARE IN A MULTIPLE STORY BUILDING...GO TO A SMALL INTERIOR ROOM
OR CLOSET ON THE LOWEST FLOOR OF THE BUILDING...AND STAY AWAY FROM
WINDOWS.

LAT...LON 3193 10154 3170 10152 3171 10083 3209 10082
          3209 10126

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 31, 8:12 PM CST	Tornado Warning	SJT	Sterling	48 min
Mar 31, 8:34 PM CST	Severe Thunderstorm Warning	SJT	Coke	56 min
Apr 1, 2:32 PM CST	Severe Thunderstorm Warning	SJT	McCulloch, San Saba	43 min

Nearby

Tornado Warnings in Texas, 2000 Every tornado warning in 2000 Tornadoes 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.