Alert archive / Texas / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 6, NWS Austin/San Antonio, TX

February 22, 2000Real County, Texas

NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Feb 22, 2000, 8:54 PM CST for Real County, Texas. It was in force for 66 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Feb 22, 2000, 8:54 PM CST (02:54 UTC)
Expired
Feb 22, 2000, 10:00 PM CST
In force
66 min
Issued by
NWS Austin/San Antonio, TX
Area
Whole counties

County Real County, TX

The radar

The Laughlin AFB radar (KDFX), 76 km from the middle of the area, began a volume at 02:57 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.

IssuedProductOfficeLasted
Feb 22, 7:00 PM CSTSevere Thunderstorm WatchSPC5 hr

The nearest sounding before it

Del Rio, TX (KDRT), launched 00:00Z, 2.9 hours before the alert went out and 111 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-pSkew-T log-p diagram, Del Rio, TX at 00:00Z on 2000-02-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2362 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Del Rio, TX at 00:00Z on 2000-02-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 27 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
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
2362 J/kg
Mixed-layer CIN
-17 J/kg
Mixed-layer LCL
1410 m above ground
0-6 km bulk shear
70 kt
0-1 km storm-relative helicity
27 m²/s²
0-3 km storm-relative helicity
155 m²/s²
Significant tornado parameter
1.5
Supercell composite
9.9

Open this sounding in Storm Lab

The text

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

000 
WUUS54 KEWX 230255
SVRSAT
TTAA00 KEWX 230254

TXC385-230400-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
854 PM CST TUE FEB 22 2000

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

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

* UNTIL 1000 PM CST

* AT 854 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 22 MILES NORTHWEST OF LEAKEY...OR ABOUT 12
  MILES SOUTHEAST OF ROCKSPRINGS...MOVING EAST AT 30 MPH.


WINDS OVER 55 MPH AND LARGE HAIL ARE POSSIBLE WITH THIS SEVERE 
THUNDERSTORM. 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.

.END/

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Austin/San Antonio, TX wrote its last area forecast discussion before this severe thunderstorm warning went out at Feb 22, 2:30 PM CST, 6 hours 24 minutes earlier.

Area forecast discussion, Feb 22, 2:30 PM CST, 6 hours 24 minutes before
SOUTH CENTRAL TEXAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
230 PM CST TUE FEB 22 2000

SQUALL LINE DEVELOPMENT VERY EVIDENT ON SATELLITE IMAGERY AND
DOPPLER...STRETCHING FROM SOUTHERNMOST POINT NEAR SANDERSON
NORTHEASTWARD.  MOVEMENT OF LINE IS EASTWARD WITH INDIVIDUAL CELL
TRAJECTORY TOWARD THE NORTHEAST.  CURRENT MOVEMENT AND DEVELOPMENT
LOOKS TO TAKE THE SOUTHERN END OF THE LINE ACROSS SOME OF OUR
EDWARDS PLATEAU AND HILL COUNTRY COUNTIES THIS AFTERNOON AND EARLY
EVENING.  TORNADO WATCH #44 ALREADY IN PLACE UNTIL 7 PM FOR THESE
COUNTIES THAT APPEAR TO BE MOST IN HARMS WAY.  UPPER-LEVEL SYSTEM
RESPONSIBLE FOR THIS DEVELOPMENT SHOULD BE BY EARLY WEDNESDAY
MORNING WITH RIDGE BUILDING OVER US.  THEREFORE POPS WILL BE IN FOR
TONIGHT ONLY.  CLOUDS SHOULD ALSO BE BY AS WELL COME WEDNESDAY ALONG
WITH DRIER AIR MASS.  CONTINUED MILD TO WARM DAYS.

AUS 52/76/47/76 7100
SAT 58/77/50/79 5-00
DRT 53/81/50/80 3000

.EWX...NONE.

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 22, 7:47 PM CSTSevere Thunderstorm WarningEWXEdwards28 min
Feb 22, 8:08 PM CSTTornado WarningEWXEdwards67 min
Feb 22, 8:19 PM CSTSevere Thunderstorm WarningEWXVal Verde56 min
Feb 22, 8:23 PM CSTTornado WarningEWXVal Verde67 min
Feb 22, 8:40 PM CSTSevere Thunderstorm WarningEWXLlano65 min
Feb 22, 8:45 PM CSTSevere Thunderstorm WarningEWXBurnet60 min
Feb 22, 8:47 PM CSTSevere Thunderstorm WarningEWXGillespie58 min
Feb 22, 8:59 PM CSTTornado WarningEWXKinney31 min
Feb 22, 9:07 PM CSTTornado WarningEWXEdwards38 min
Feb 22, 9:30 PM CSTTornado WarningEWXKinney30 min
Feb 22, 9:46 PM CSTSevere Thunderstorm WarningEWXWilliamson59 min
Feb 22, 9:55 PM CSTTornado WarningEWXKinney35 min
Feb 22, 10:06 PM CSTTornado WarningEWXUvalde39 min
Feb 22, 10:36 PM CSTTornado WarningEWXUvalde39 min
Feb 22, 11:10 PM CSTSevere Thunderstorm WarningEWXMedina65 min
Feb 22, 11:30 PM CSTSevere Thunderstorm WarningEWXFrio, Uvalde, Zavala60 min
Feb 22, 11:44 PM CSTTornado WarningEWXZavala76 min

Nearby

Severe Thunderstorm Warnings in Texas, 2000Every 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.