Alert archive / Texas / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 10, NWS Austin/San Antonio, TX

March 2, 1997Kendall County, Texas

NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Mar 2, 1997, 1:49 AM CST for Kendall County, Texas. It was in force for 56 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued: Mar 2, 1997, 1:49 AM CST (07:49 UTC)
Expired: Mar 2, 1997, 2:45 AM CST
In force: 56 min
Issued by: NWS Austin/San Antonio, TX
Area: Whole counties

County Kendall County, TX

The radar

The Austin/San Antonio radar (KEWX), 71 km from the middle of the area, began a volume at 07:50 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 2, 2:20 AM CST	Hail 0.75	Boerne, 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 1, 10:15 PM CST	Tornado Watch	SPC	6 hr

The nearest sounding before it

Del Rio, TX (KDRT), launched 00:00Z, 7.8 hours before the alert went out and 215 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: 3226 m above ground
0-6 km bulk shear: 87 kt
0-1 km storm-relative helicity: -4 m²/s²
0-3 km storm-relative helicity: 321 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KSAT 020753 RRA
SVRSAT
TXC259-020845-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
149 AM CST SUN MAR 2 1997
 
THE NATIONAL WEATHER SERVICE IN AUSTIN/SAN ANTONIO HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  245 AM CST
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN SOUTH CENTRAL TEXAS
 
   ...KENDALL COUNTY
 
AT 150 AM NATIONAL WEATHER SERVICE RADAR INDICATED SEVERE THUNDERSTORMS
FROM KERRVILLE TO PIPE CREEK. THESE STORMS WILL MOVE ACROSS KENDALL
COUNTY IN THE NEXT HOUR. STRONG DAMAGING WINDS AND HAIL CAN BE EXPECTED
WITH THESE STORMS.
 
ALTHOUGH NO TORNADOES HAVE BEEN DETECTED WITH THIS STORM...A
TORNADO WATCH REMAINS IN EFFECT.  SEVERE THUNDERSTORMS CAN AND
OCCASIONALLY DO PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING
SO BE ON THE LOOKOUT.
 
 
 
&

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.

In the hours before

Local storm report, Mar 2, 12:05 AM CST, 1 hour 44 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TEXAS
1205 AM CST SUN MAR 02 1997

TIME(CST)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....
 1124 PM    MOORE                     TX   .75 INCH HAIL
03/01/97   FRIO

1150 PM    YANCEY                    TX   .5 INCH HAIL
03/01/97   MEDINA                         5 MILES WEST OF YANCEY

Local storm report, Mar 2, 12:06 AM CST, 1 hour 43 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TEXAS
1205 AM CST SUN MAR 02 1997

TIME(CST)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....
 1124 PM    MOORE                     TX   .75 INCH HAIL
03/01/97   FRIO

1150 PM    YANCEY                    TX   .5 INCH HAIL
03/01/97   MEDINA                         5 MILES WEST OF YANCEY

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 1, 10:49 PM CST	Severe Thunderstorm Warning	EWX	Frio	56 min
Mar 1, 11:49 PM CST	Severe Thunderstorm Warning	EWX	Medina	56 min
Mar 2, 12:15 AM CST	Severe Thunderstorm Warning	EWX	Frio	60 min
Mar 2, 1:01 AM CST	Severe Thunderstorm Warning	EWX	Comal	59 min
Mar 2, 1:13 AM CST	Severe Thunderstorm Warning	EWX	Bandera	47 min
Mar 2, 1:29 AM CST	Severe Thunderstorm Warning	EWX	Hays	61 min
Mar 2, 1:32 AM CST	Severe Thunderstorm Warning	EWX	Kerr	58 min
Mar 2, 1:41 AM CST	Severe Thunderstorm Warning	EWX	Bexar	64 min
Mar 2, 2:23 AM CST	Severe Thunderstorm Warning	EWX	Bandera	52 min

Nearby

Severe Thunderstorm Warnings in Texas, 1997 Every severe thunderstorm warning in 1997

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.