Alert archive / Texas / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 7, NWS Austin/San Antonio, TX

February 15, 2001Real County, Uvalde County, Texas

NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Feb 15, 2001, 11:08 PM CST for Real County, Uvalde County, Texas. It was in force for 52 min. 1 report 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: Feb 15, 2001, 11:08 PM CST (05:08 UTC)
Expired: Feb 16, 2001, 12:00 AM CST
In force: 52 min
Issued by: NWS Austin/San Antonio, TX
Area: Whole counties; the outline is the Mesonet’s reconstruction

Counties Real County, TX, Uvalde County, TX

What was reported inside it

Time	Report	Where	Remark
Feb 15, 11:20 PM CST	Hail 1.75	Leakey, 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
Feb 15, 9:15 PM CST	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Del Rio, TX (KDRT), launched 00:00Z, 5.1 hours before the alert went out and 91 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: 616 J/kg
Mixed-layer CIN: -49 J/kg
Mixed-layer LCL: 661 m above ground
0-6 km bulk shear: 83 kt
0-1 km storm-relative helicity: 36 m²/s²
0-3 km storm-relative helicity: 156 m²/s²
Significant tornado parameter: 0.3
Supercell composite: 1.3

Open this sounding in Storm Lab

The text

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

000 
WUUS54 KEWX 160515
SVRSAT
TXC385-463-160600-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1108 PM CST THU FEB 15 2001

THE NATIONAL WEATHER SERVICE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR THE FOLLOWING COUNTIES IN TEXAS...
  REAL COUNTY
  UVALDE COUNTY

* UNTIL MIDNIGHT CST

* AT 1108 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 10 MILES SOUTH OF CAMP WOOD...OR ABOUT 26 MILES
  NORTHWEST OF UVALDE...MOVING NORTHEAST AT 70 MPH.

* THE SEVERE THUNDERSTORM WILL BE...
  4 MILES NORTHWEST OF LEAKEY AT 1120 PM CST

IF SEVERE WEATHER APPROACHES YOUR AREA...GO INSIDE A STURDY SHELTER
AWAY FROM CREEK BEDS AND OTHER FLOOD-PRONE AREAS. REMEMBER...A SEVERE
THUNDERSTORM CAN PRODUCE LARGE DAMAGING HAIL...DAMAGING WINDS IN
EXCESS OF 55 MPH...DEADLY LIGHTNING...AND VERY HEAVY RAIN.

VERY LARGE HAIL IS POSSIBLE WITH THIS SEVERE THUNDERSTORM. IF YOU ARE
IN THE PATH OF THE STORM...PUT YOUR CAR IN A GARAGE AND MOVE TO A
SUBSTANTIAL SHELTER.

THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH YOU SHOULD PREPARE
FOR DAMAGING WINDS IN EXCESS OF 55 MPH...LARGE HAIL...AND DEADLY
LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...PREFERABLY
INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.


LAT...LON 2954 10015 2941 10001 2972 9960 2989 9980

The office that day

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

Issued	Product	Office	Counties	Lasted
Feb 15, 8:13 PM CST	Severe Thunderstorm Warning	EWX	Val Verde	62 min
Feb 15, 8:46 PM CST	Tornado Warning	EWX	Edwards, Val Verde	29 min
Feb 15, 9:20 PM CST	Severe Thunderstorm Warning	EWX	Edwards	25 min
Feb 15, 10:07 PM CST	Severe Thunderstorm Warning	EWX	Edwards	38 min
Feb 15, 10:29 PM CST	Severe Thunderstorm Warning	EWX	Edwards, Kinney, Val Verde	46 min
Feb 15, 11:35 PM CST	Severe Thunderstorm Warning	EWX	Bandera, Real, Uvalde	55 min
Feb 15, 11:35 PM CST	Severe Thunderstorm Warning	EWX	Kerr	55 min
Feb 16, 12:30 AM CST	Severe Thunderstorm Warning	EWX	Gillespie, Kendall, Kerr	45 min
Feb 16, 12:45 AM CST	Severe Thunderstorm Warning	EWX	Bandera, Kendall, Kerr	45 min
Feb 16, 12:45 AM CST	Severe Thunderstorm Warning	EWX	Medina	45 min
Feb 16, 1:15 AM CST	Severe Thunderstorm Warning	EWX	Bandera, Bexar, Medina	45 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.