Alert archive / Texas / Severe Thunderstorm Warnings in 2002
Severe Thunderstorm Warning 145, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Dec 30, 2002, 1:53 PM CST for Medina County, Texas. It was in force for 37 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Dec 30, 2002, 1:53 PM CST (19:53 UTC)
- Expired
- Dec 30, 2002, 2:30 PM CST
- In force
- 37 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Counties, with a storm outline in the text
County Medina County, TX
The radar
The Austin/San Antonio radar (KEWX), 92 km from the middle of the area, began a volume at 19:56 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 |
|---|---|---|---|
| Dec 30, 12:00 PM CST | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Del Rio, TX (KDRT), launched 12:00Z, 7.9 hours before the alert went out and 184 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
- 333 J/kg
- Mixed-layer CIN
- -495 J/kg
- Mixed-layer LCL
- 1056 m above ground
- 0-6 km bulk shear
- 64 kt
- 0-1 km storm-relative helicity
- 269 m²/s²
- 0-3 km storm-relative helicity
- 311 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
WUUS54 KEWX 301953
SVRSAT
TXC325-302030-
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
153 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...
MEDINA
* UNTIL 230 PM CST
* AT 153 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM OVER MEDINA COUNTY...MOVING NORTHEAST AT 45
MPH.
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 2954 9904 2930 9898 2939 9885 2960 9881
2959 9898
$$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, 1:57 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, 3:53 PM CST | Severe Thunderstorm Warning | EWX | Comal | 52 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.