Alert archive / Texas / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 22, NWS Austin/San Antonio, TX

March 10, 20004 counties in Texas

NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Mar 10, 2000, 7:10 PM CST for 4 counties in Texas. It was in force for 65 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: Mar 10, 2000, 7:10 PM CST (01:10 UTC)
Expired: Mar 10, 2000, 8:15 PM CST
In force: 65 min
Issued by: NWS Austin/San Antonio, TX
Area: Whole counties; the outline is the Mesonet’s reconstruction

Counties DeWitt County, TX, Gonzales County, TX, Karnes County, TX, Wilson County, TX

The radar

The Austin/San Antonio radar (KEWX), 65 km from the middle of the area, began a volume at 01:13 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, 7:30 PM CST	Thunderstorm Wind	Smiley, TX	Additional trees were reported to have been blown down in southwest Gonzales County.
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, 1.2 hours before the alert went out and 165 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 
WUUS54 KEWX 110114
SVRSAT
TXC123-177-255-493-110215-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
710 PM CST FRI MAR 10 2000

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

* SEVERE THUNDERSTORM WARNING FOR THE FOLLOWING COUNTIES IN TEXAS...
  GONZALES COUNTY
  WILSON COUNTY
  DEWITT COUNTY
  KARNES COUNTY

* UNTIL 815 PM CST

* AT 710 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
A   SEVERE THUNDERSTORM NEAR GILLETT AND 6 MILES SOUTHEAST OF 
STOCKDALE...MOVING SOUTHEAST AT 10 MPH. 

THIS EXTENDS THE SEVERE THUNDERSTORM WARNING FOR GONZALES DEWITT 
AND KARNES COUNTIES.

A TORNADO WATCH IS IN EFFECT. SEVERE THUNDERSTORMS CAN AND DO PRODUCE
TORNADOES WITH LITTLE OR NO ADVANCE WARNING. PREPARE TO MOVE TO A
PLACE OF SAFETY IN A STURDY STRUCTURE SUCH AS A BASEMENT OR SMALL
INTERIOR ROOM IF A TORNADO IS SPOTTED.

.END/ LAT...LON 2927 9792 2913 9805 2885 9773 2927 9736

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, 7:15 PM CST	Flash Flood Warning	EWX	DeWitt, Karnes	3 hr
Mar 10, 7:33 PM CST	Tornado Warning	EWX	DeWitt	27 min
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

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.