Alert archive / Texas / Severe Thunderstorm Warnings in 2002
Severe Thunderstorm Warning 45, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Apr 16, 2002, 6:20 PM CDT for Bexar County, Kendall County, Medina County, Texas. It was in force for 55 min. 4 reports 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
- Apr 16, 2002, 6:20 PM CDT (23:20 UTC)
- Expired
- Apr 16, 2002, 7:15 PM CDT
- In force
- 55 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties
Counties Bexar County, TX, Kendall County, TX, Medina County, TX
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Apr 16, 6:50 PM CDT | Hail 1 | San Antonio, TX | |
| Apr 16, 6:52 PM CDT | Hail 0.75 | San Antonio, TX | |
| Apr 16, 6:55 PM CDT | Hail 1.75 | San Antonio, TX | |
| Apr 16, 7:20 PM CDT | 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 |
|---|---|---|---|
| Apr 16, 5:00 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Del Rio, TX (KDRT), launched 12:00Z, 11.3 hours before the alert went out and 201 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
- 791 J/kg
- Mixed-layer CIN
- -305 J/kg
- Mixed-layer LCL
- 1536 m above ground
- 0-6 km bulk shear
- 41 kt
- 0-1 km storm-relative helicity
- 347 m²/s²
- 0-3 km storm-relative helicity
- 351 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 162320 SVRSAT TXC029-259-325-170015- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 620 PM CDT TUE APR 16 2002 THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR THE FOLLOWING COUNTIES IN TEXAS... KENDALL BEXAR MEDINA * UNTIL 715 PM CDT * AT 617 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 10 MILES WEST OF HELOTES...OR ABOUT 15 MILES WEST OF LEON VALLEY...MOVING NORTHEAST AT 20 MPH. * THE SEVERE THUNDERSTORM WILL BE... 7 MILES NORTHWEST OF HELOTES AT 625 PM 6 MILES NORTHWEST OF CROSS MOUNTAIN AT 640 PM 3 MILES NORTHWEST OF SCENIC OAKS AT 650 PM 4 MILES NORTHWEST OF FAIR OAKS RANCH AT 700 PM VERY HEAVY AND POTENTIALLY SEVERE THUNDERSTORMS WERE ALSO MOVING INTO SOUTHWEST BEXAR COUNTY AND WILL IMPACT SOUTHERN PORTIONS OF SAN ANTONIO DURING THE NEXT 15 MINUTES. 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.
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 16, 4:17 PM CDT | Severe Thunderstorm Warning | EWX | Atascosa | 58 min |
| Apr 16, 4:32 PM CDT | Severe Thunderstorm Warning | EWX | Bexar, Wilson | 43 min |
| Apr 16, 4:49 PM CDT | Tornado Warning | EWX | Atascosa, Wilson | 56 min |
| Apr 16, 5:17 PM CDT | Severe Thunderstorm Warning | EWX | Bexar, Comal, Guadalupe | 58 min |
| Apr 16, 5:43 PM CDT | Tornado Warning | EWX | Atascosa, Karnes | 62 min |
| Apr 16, 6:16 PM CDT | Severe Thunderstorm Warning | EWX | Comal, Hays | 44 min |
| Apr 16, 6:41 PM CDT | Tornado Warning | EWX | Bexar, Kendall | 49 min |
| Apr 16, 6:46 PM CDT | Tornado Warning | EWX | Atascosa, Karnes | 29 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.