Alert archive / Texas / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 8, NWS Austin/San Antonio, TX

February 22, 2000Medina County, Texas

NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Feb 22, 2000, 11:10 PM CST for Medina County, Texas. It was in force for 65 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, 11:10 PM CST (05:10 UTC)
Expired: Feb 23, 2000, 12:15 AM CST
In force: 65 min
Issued by: NWS Austin/San Antonio, TX
Area: Whole counties

County Medina County, TX

The radar

The Austin/San Antonio radar (KEWX), 112 km from the middle of the area, began a volume at 05:10 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
Feb 22, 10:00 PM CST	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Del Rio, TX (KDRT), launched 00:00Z, 5.2 hours before the alert went out and 168 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: 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 230512
SVRSAT
TXC325-230615-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1110 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...
  MEDINA COUNTY

* UNTIL 1215 AM CST

* AT 1110 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM NEAR SABINAL...MOVING EAST AT 40 MPH.

VERY LARGE HAIL AND DAMAGING WINDS IN EXCESS OF 60 MPH ARE 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.

.END/ LAT...L.ON 2948 9938 2916 9936 2917 9884 2950 9885

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, 8 hours 40 minutes earlier.

Area forecast discussion, Feb 22, 2:30 PM CST, 8 hours 40 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.

In the hours before

Local storm report, Feb 22, 10:20 PM CST, 50 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO, TX
1020 PM CST TUE FEB 22 2000

TIME(CST)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0914 PM    18 E DEL RIO              TX   OTHER
02/23/00   VAL VERDE                      FUNNEL CLOUD REPORTED BY
                                          VAL VERDE COUNTY SHERIFF
                                          DEPT

0924 PM    FREDERICKSBURG            TX   .75 INCH HAIL
02/23/00   GILLESPIE                      REPORTED BY OBSERVER

0821 PM    8 N LLANO                 TX   .88 INCH HAIL
02/23/00   LLANO                          REPORTED BY OBSERVER

853 PM    9 W HARPER                 TX   .88 INCH HAIL
02/23/00  GILLESPIE                       REPORTED BY OBSERVER

853 PM    CRABAPPLE                  TX   .75 INCH HAIL
02/23/00  GILLESPIE                       REPORTED BY OBSERVER

1014 PM    HARPER                    TX   .75 INCH HAIL
02/23/00   GILLESPIE                      REPORTED BY OBSERVER

The office that day

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

Issued	Product	Office	Counties	Lasted
Feb 22, 7:47 PM CST	Severe Thunderstorm Warning	EWX	Edwards	28 min
Feb 22, 8:08 PM CST	Tornado Warning	EWX	Edwards	67 min
Feb 22, 8:19 PM CST	Severe Thunderstorm Warning	EWX	Val Verde	56 min
Feb 22, 8:23 PM CST	Tornado Warning	EWX	Val Verde	67 min
Feb 22, 8:40 PM CST	Severe Thunderstorm Warning	EWX	Llano	65 min
Feb 22, 8:45 PM CST	Severe Thunderstorm Warning	EWX	Burnet	60 min
Feb 22, 8:47 PM CST	Severe Thunderstorm Warning	EWX	Gillespie	58 min
Feb 22, 8:54 PM CST	Severe Thunderstorm Warning	EWX	Real	66 min
Feb 22, 8:59 PM CST	Tornado Warning	EWX	Kinney	31 min
Feb 22, 9:07 PM CST	Tornado Warning	EWX	Edwards	38 min
Feb 22, 9:30 PM CST	Tornado Warning	EWX	Kinney	30 min
Feb 22, 9:46 PM CST	Severe Thunderstorm Warning	EWX	Williamson	59 min
Feb 22, 9:55 PM CST	Tornado Warning	EWX	Kinney	35 min
Feb 22, 10:06 PM CST	Tornado Warning	EWX	Uvalde	39 min
Feb 22, 10:36 PM CST	Tornado Warning	EWX	Uvalde	39 min
Feb 22, 11:30 PM CST	Severe Thunderstorm Warning	EWX	Frio, Uvalde, Zavala	60 min
Feb 22, 11:44 PM CST	Tornado Warning	EWX	Zavala	76 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.