Alert archive / Texas / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 29, NWS Austin/San Antonio, TX

March 16, 2000Bexar County, Texas

NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Mar 16, 2000, 4:59 PM CST for Bexar County, Texas. It was in force for 61 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: Mar 16, 2000, 4:59 PM CST (22:59 UTC)
Expired: Mar 16, 2000, 6:00 PM CST
In force: 61 min
Issued by: NWS Austin/San Antonio, TX
Area: Whole counties; the outline is the Mesonet’s reconstruction

County Bexar County, TX

The radar

The Austin/San Antonio radar (KEWX), 54 km from the middle of the area, began a volume at 23:01 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 16, 5:55 PM CST	Hail 1	San Antonio, 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
Mar 16, 2:45 PM CST	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Del Rio, TX (KDRT), launched 12:00Z, 11.0 hours before the alert went out and 220 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: 487 J/kg
Mixed-layer CIN: -391 J/kg
Mixed-layer LCL: 1237 m above ground
0-6 km bulk shear: 36 kt
0-1 km storm-relative helicity: 212 m²/s²
0-3 km storm-relative helicity: 336 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.4

Open this sounding in Storm Lab

The text

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

000 
WUUS54 KEWX 162302
SVRSAT
TXC029-170000-
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
459 PM CST THU MAR 16 2000

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

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

* UNTIL 600 PM CST

* AT 5 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  SEVERE THUNDERSTORMS DEVELOPING OVER NORTHERN BEXAR COUNTY.  THESE
  STORMS WILL MOVE NORTHEAST AT 20 MPH BUT BUILD SOUTHWARD ACROSS
  THE COUNTY AS WELL.

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

.END/ LAT...LON 2976 9858 2969 9879 2927 9877 2946 9816

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 16, 3:25 PM CST	Severe Thunderstorm Warning	EWX	Burnet	65 min
Mar 16, 3:45 PM CST	Severe Thunderstorm Warning	EWX	Williamson	60 min
Mar 16, 4:08 PM CST	Tornado Warning	EWX	Williamson	37 min
Mar 16, 4:43 PM CST	Tornado Warning	EWX	Travis, Williamson	32 min
Mar 16, 4:47 PM CST	Severe Thunderstorm Warning	EWX	Comal	43 min
Mar 16, 5:08 PM CST	Severe Thunderstorm Warning	EWX	Hays	52 min
Mar 16, 5:18 PM CST	Severe Thunderstorm Warning	EWX	Travis, Williamson	27 min
Mar 16, 5:28 PM CST	Severe Thunderstorm Warning	EWX	Comal	62 min
Mar 16, 5:42 PM CST	Severe Thunderstorm Warning	EWX	Bastrop	63 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.