Alert archive / Texas / Severe Thunderstorm Warnings in 2002
Severe Thunderstorm Warning 150, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Dec 30, 2002, 3:53 PM CST for Comal County, Texas. It was in force for 52 min. 2 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Dec 30, 2002, 3:53 PM CST (21:53 UTC)
- Expired
- Dec 30, 2002, 4:45 PM CST
- In force
- 52 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Counties, with a storm outline in the text
County Comal County, TX
The radar
The Austin/San Antonio radar (KEWX), 17 km from the middle of the area, began a volume at 21:53 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 |
|---|---|---|---|
| Dec 30, 4:02 PM CST | Hail 0.88 | New Braunfels, TX | |
| Dec 30, 4:03 PM CST | Hail 0.88 | New Braunfels, 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 |
|---|---|---|---|
| Dec 30, 12:00 PM CST | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Corpus Christi, TX (KCRP), launched 12:00Z, 9.9 hours before the alert went out and 235 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.
- Mixed-layer CAPE
- 302 J/kg
- Mixed-layer CIN
- -271 J/kg
- Mixed-layer LCL
- 652 m above ground
- 0-6 km bulk shear
- 46 kt
- 0-1 km storm-relative helicity
- 234 m²/s²
- 0-3 km storm-relative helicity
- 154 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted, in the capitals the NWS used until 2016.
000
WUUS54 KEWX 302153
SVRSAT
TXC091-302245-
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
353 PM CST MON DEC 30 2002
THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR THE FOLLOWING COUNTIES IN TEXAS...
COMAL
* UNTIL 445 PM CST
* AT 353 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM OVER GARDEN RIDGE...OR ABOUT 4 MILES NORTH OF
SCHERTZ...MOVING NORTHEAST AT 35 MPH.
* THE SEVERE THUNDERSTORM WILL BE...
NEW BRAUNFELS AT 410 PM
VERY LARGE HAIL IS 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.
A TORNADO WATCH IS IN EFFECT. SEVERE THUNDERSTORMS CAN AND DO PRODUCE
TORNADOES WITH LITTLE OR NO ADVANCE WARNING. PREPARE TO MOVE TO A
PLACE OF SAFETY IN A STURDY STRUCTURE SUCH AS A BASEMENT OR SMALL
INTERIOR ROOM IF A TORNADO IS SPOTTED.
LAT...LON 2965 9833 2959 9828 2968 9815 2978 9804
2985 9810
$$The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 30, 1:26 PM CST | Severe Thunderstorm Warning | EWX | Kerr, Real | 64 min |
| Dec 30, 1:48 PM CST | Severe Thunderstorm Warning | EWX | Burnet, Williamson | 42 min |
| Dec 30, 1:53 PM CST | Severe Thunderstorm Warning | EWX | Medina | 37 min |
| Dec 30, 1:57 PM CST | Severe Thunderstorm Warning | EWX | Bexar | 63 min |
| Dec 30, 2:05 PM CST | Tornado Warning | EWX | Bexar | 55 min |
| Dec 30, 2:26 PM CST | Tornado Warning | EWX | Comal | 64 min |
| Dec 30, 3:05 PM CST | Tornado Warning | EWX | Hays | 55 min |
| Dec 30, 3:18 PM CST | Tornado Warning | EWX | Caldwell | 57 min |
| Dec 30, 3:28 PM CST | Severe Thunderstorm Warning | EWX | Bexar | 62 min |
| Dec 30, 3:29 PM CST | Severe Thunderstorm Warning | EWX | Travis | 61 min |
| Dec 30, 3:50 PM CST | Severe Thunderstorm Warning | EWX | Guadalupe | 55 min |
| Dec 30, 3:58 PM CST | Tornado Warning | EWX | Bastrop | 62 min |
| Dec 30, 3:59 PM CST | Severe Thunderstorm Warning | EWX | Williamson | 61 min |
| Dec 30, 4:22 PM CST | Tornado Warning | EWX | Williamson | 53 min |
| Dec 30, 5:00 PM CST | Severe Thunderstorm Warning | EWX | Gonzales | 60 min |
| Dec 30, 5:11 PM CST | Tornado Warning | EWX | Bastrop, Fayette, Lee | 64 min |
Nearby
Severe Thunderstorm Warnings in Texas, 2002Every severe thunderstorm warning in 2002
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.