Alert archive / Texas / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 51, NWS Austin/San Antonio, TX

March 17, 2000Fayette County, Gonzales County, Texas

NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Mar 17, 2000, 6:11 AM CST for Fayette County, Gonzales County, Texas. It was in force for 64 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: Mar 17, 2000, 6:11 AM CST (12:11 UTC)
Expired: Mar 17, 2000, 7:15 AM CST
In force: 64 min
Issued by: NWS Austin/San Antonio, TX
Area: Whole counties

Counties Fayette County, TX, Gonzales County, TX

The radar

The Austin/San Antonio radar (KEWX), 80 km from the middle of the area, began a volume at 12:15 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 nearest sounding before it

Corpus Christi, TX (KCRP), launched 12:00Z, 0.2 hours before the alert went out and 216 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 566 m above ground
0-6 km bulk shear: 46 kt
0-1 km storm-relative helicity: 177 m²/s²
0-3 km storm-relative helicity: 344 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 2.4

Open this sounding in Storm Lab

The text

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

000 
WUUS54 KEWX 171212
SVRSAT
TXC149-177-171315-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
611 AM CST FRI MAR 17 2000

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

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

* UNTIL 715 AM CST

* AT 611 AM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 7 MILES WEST OF WAELDER...OR ABOUT 14 MILES   
NORTH OF GONZALES...MOVING EAST AT 30 MPH. 

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  WAELDER AROUND 625 AM CST
  CISTERN AROUND 635 AM CST
  FLATONIA AROUND 645 AM CST
  MULDOON AROUND 655 AM CST
  SCHULENBURG AROUND 710 AM CST

.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 Mar 17, 2:50 AM CST, 3 hours 21 minutes earlier.

Area forecast discussion, Mar 17, 2:50 AM CST, 3 hours 21 minutes before

SOUTH CENTRAL TEXAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
250 AM CST FRI MAR 17 2000

MARCH MADNESS CONTINUES AS OUR VIGOROUS COLD UPPER LOW BEGINS
SHIFTING EASTWARD ALLOWING COLDER...DRIER AIR TO BEGIN INFLITRATING
OUR WESTERN ZONES.  BY LATE AFTERNOON SOUTH CENTRAL TEXAS WILL BE IN
WESTERLY SUBSIDENT SIDE OF UPPER LOW...THUS MUCH OF AREA SHOULD BE
MOSTLY SUNNY TO PARTLY CLOUDY EXCEPT EASTERN QUADRANT WHERE MOISTURE
AND COLD ADVECTION WILL KEEP IT MOSTLY CLOUDY.  SKIES SHOULD CLEAR
ACROSS MUCH OF WESTERN AND CENTRAL PORTIONS TONIGHT BUT SOME GULF
CYCLOGENESIS SHOULD KEEP SOUTHEAST SECTIONS MOSTLY CLOUDY.  ANOTHER
APPROACHING UPPER TROUGH OVER NEW MEXICO AND THE TEXAS PANHANDLE
SHOULD INCREASE LOW LEVEL MOISTURE AS SURFACE RIDGE MOVES EAST.
THIS LONG WAVE UPPER TROUGH WILL DIG SOUTHEAST AND COMBINE WITH
SOUTHERN STREAM TO PRODUCE ANOTHER WAVE OF SCATTERED SHOWERS AND
THUNDERSTORMS SATURDAY NIGHT INTO EARLY SUNDAY.  WE WILL FINALLY DRY
OUT BY LATE SUNDAY...BUT SOME MID AND UPPER LEVEL CLOUDS MAY REMAIN
WITH SOUTHERN STREAM OFF PACIFIC.

PRELIMS...
AUS 050/045/065/048 4003
SAT 058/047/067/049 3003
DRT 06X6/047/070/047 0003

.EWX...CAUTION ADVISED ON AREA LAKES SOUTH CENTRAL ZONES.

02/06

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 16, 6:00 PM CST	Severe Thunderstorm Warning	EWX	Caldwell	60 min
Mar 16, 6:15 PM CST	Severe Thunderstorm Warning	EWX	Guadalupe	45 min
Mar 16, 6:25 PM CST	Severe Thunderstorm Warning	EWX	Bexar	65 min
Mar 16, 6:36 PM CST	Severe Thunderstorm Warning	EWX	Lee	54 min
Mar 16, 6:49 PM CST	Severe Thunderstorm Warning	EWX	Wilson	56 min
Mar 16, 6:58 PM CST	Severe Thunderstorm Warning	EWX	Caldwell	62 min
Mar 16, 7:26 PM CST	Severe Thunderstorm Warning	EWX	Comal	64 min
Mar 16, 7:31 PM CST	Severe Thunderstorm Warning	EWX	Karnes	59 min
Mar 16, 8:18 PM CST	Severe Thunderstorm Warning	EWX	DeWitt	57 min
Mar 16, 9:15 PM CST	Severe Thunderstorm Warning	EWX	DeWitt	30 min
Mar 16, 9:38 PM CST	Severe Thunderstorm Warning	EWX	Bexar	52 min
Mar 16, 9:51 PM CST	Severe Thunderstorm Warning	EWX	Comal, Guadalupe	54 min
Mar 16, 10:42 PM CST	Severe Thunderstorm Warning	EWX	Bexar	63 min
Mar 16, 10:58 PM CST	Severe Thunderstorm Warning	EWX	Guadalupe, Wilson	47 min
Mar 16, 11:36 PM CST	Severe Thunderstorm Warning	EWX	Gonzales	54 min
Mar 16, 11:47 PM CST	Severe Thunderstorm Warning	EWX	Guadalupe	43 min
Mar 17, 12:45 AM CST	Severe Thunderstorm Warning	EWX	Bastrop, Caldwell	60 min
Mar 17, 6:20 AM CST	Severe Thunderstorm Warning	EWX	Bexar, Guadalupe	55 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.