Alert archive / Texas / Tornado Warnings in 2000

Tornado Warning 12, NWS Austin/San Antonio, TX

March 10, 2000DeWitt County, Texas

NWS Austin/San Antonio, TX issued this tornado warning at Mar 10, 2000, 7:33 PM CST for DeWitt County, Texas. It was in force for 27 min. 1 report 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 10, 2000, 7:33 PM CST (01:33 UTC)
Expired: Mar 10, 2000, 8:00 PM CST
In force: 27 min
Issued by: NWS Austin/San Antonio, TX
Area: Whole counties

County DeWitt County, TX

The radar

The Austin/San Antonio radar (KEWX), 95 km from the middle of the area, began a volume at 01:36 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 10, 7:40 PM CST	Thunderstorm Wind	Yorktown, TX	Trees were reported to have been blown down by severe thunderstorms north and northwest of Yorktown.

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 10, 6:15 PM CST	Tornado Watch	SPC	6 hr

The nearest sounding before it

Corpus Christi, TX (KCRP), launched 00:00Z, 1.6 hours before the alert went out and 150 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: 2395 J/kg
Mixed-layer CIN: -99 J/kg
Mixed-layer LCL: 1159 m above ground
0-6 km bulk shear: 49 kt
0-1 km storm-relative helicity: 123 m²/s²
0-3 km storm-relative helicity: 146 m²/s²
Significant tornado parameter: 1.0
Supercell composite: 5.4

Open this sounding in Storm Lab

The text

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

000 
WFUS54 KEWX 110140 COR
TORSAT
TXC123-110200-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING...CORRECTION
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
733 PM CST FRI MAR 10 2000

THE NATIONAL WEATHER SERVICE IN AUSTIN/SAN ANTONIO HAS ISSUED A

* TORNADO WARNING FOR THE FOLLOWING COUNTIES IN TEXAS...
  DEWITT COUNTY

* UNTIL 800 PM CST

* AT 733 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  THUNDERSTORM WITH A POSSIBLE TORNADO 11 MILES NORTH OF NORDHEIM...
  OR ABOUT 12 MILES NORTHWEST OF YORKTOWN...MOVING SOUTHEAST AT 10
  MPH.

* THE TORNADO IS EXPECTED TO BE NEAR...
  NORDHEIM AROUND 805 PM CST

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A WELL-BUILT BUILDING.
IF NO BASEMENT IS AVAILABLE...GO TO A CENTRAL...SMALL ROOM ON THE
LOWEST FLOOR...SUCH AS A BATHROOM...CLOSET OR HALLWAY. STAY AWAY FROM
OUTSIDE WINDOWS AND DOORS. USE BLANKETS OR PILLOWS TO COVER YOUR
BODY.

PREVIOUS WARNING WAS INADVERTENTLY SENT AS A SEVERE THUNDERSTORM 
WARNING.

.END/

The office that day

Everything else NWS Austin/San Antonio, TX issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Mar 10, 6:14 PM CST	Severe Thunderstorm Warning	EWX	DeWitt, Gonzales, Karnes	61 min
Mar 10, 6:22 PM CST	Tornado Warning	EWX	DeWitt, Gonzales, Karnes	38 min
Mar 10, 7:10 PM CST	Severe Thunderstorm Warning	EWX	DeWitt, Gonzales, Karnes, Wilson	65 min
Mar 10, 7:15 PM CST	Flash Flood Warning	EWX	DeWitt, Karnes	3 hr
Mar 10, 7:53 PM CST	Tornado Warning	EWX	DeWitt	37 min
Mar 10, 8:34 PM CST	Severe Thunderstorm Warning	EWX	Lee	56 min
Mar 10, 9:21 PM CST	Severe Thunderstorm Warning	EWX	Bastrop	54 min
Mar 10, 9:30 PM CST	Severe Thunderstorm Warning	EWX	Fayette	60 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.