Alert archive / Texas / Severe Thunderstorm Warnings in 2002
Severe Thunderstorm Warning 13, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Mar 19, 2002, 8:14 PM CST for Hays 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 as issued, with what was reported inside it.
The facts
- Issued
- Mar 19, 2002, 8:14 PM CST (02:14 UTC)
- Expired
- Mar 19, 2002, 9:15 PM CST
- In force
- 61 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Counties, with a storm outline in the text
County Hays County, TX
The radar
The Austin/San Antonio radar (KEWX), 41 km from the middle of the area, began a volume at 02:17 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 19, 8:35 PM CST | Thunderstorm Wind | Countywide, TX | The derecho continued across Hays County where winds estimated at 60 to 70 knots knocked over trees, brought down large limbs and damaged homes and vehicles. The worst damage was in the southeast part of the county, near the town of San Marcos, where several |
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 19, 3:30 PM CST | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Corpus Christi, TX (KCRP), launched 00:00Z, 2.2 hours before the alert went out and 270 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
- 932 J/kg
- Mixed-layer CIN
- -500 J/kg
- Mixed-layer LCL
- 1142 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 130 m²/s²
- 0-3 km storm-relative helicity
- 114 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 200214 SVRSAT TXC209-200315- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 812 PM CST TUE MAR 19 2002 THE NATIONAL WEATHER SERVICE HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR THE FOLLOWING COUNTIES IN TEXAS... HAYS * UNTIL 915 PM CST * AT 812 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 8 MILES SOUTHWEST OF WIMBERLEY...OR ABOUT 5 MILES EAST OF CANYON LAKE...MOVING NORTHEAST AT 20 MPH. * THE SEVERE THUNDERSTORM WILL BE... OVER WIMBERLEY AT 830 PM 3 MILES SOUTHEAST OF WOODCREEK AT 835 PM * THIS WARNING INCLUDES LOCATIONS IN AND AROUND... WIMBERLEY WOODCREEK RADAR ESTIMATES WINDS OF 60 TO 70 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 3005 9831 2982 9804 3004 9783 3033 9817
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 19, 6:08 PM CST | Severe Thunderstorm Warning | EWX | Uvalde | 52 min |
| Mar 19, 6:18 PM CST | Severe Thunderstorm Warning | EWX | Zavala | 42 min |
| Mar 19, 6:23 PM CST | Severe Thunderstorm Warning | EWX | Burnet | 52 min |
| Mar 19, 6:25 PM CST | Tornado Warning | EWX | Frio, Zavala | 35 min |
| Mar 19, 6:39 PM CST | Tornado Warning | EWX | Medina, Uvalde | 51 min |
| Mar 19, 7:03 PM CST | Tornado Warning | EWX | Bexar | 57 min |
| Mar 19, 7:30 PM CST | Severe Thunderstorm Warning | EWX | Atascosa, Frio | 60 min |
| Mar 19, 7:51 PM CST | Tornado Warning | EWX | Bexar, Guadalupe, Wilson | 54 min |
| Mar 19, 7:58 PM CST | Tornado Warning | EWX | Dimmit, Maverick | 62 min |
| Mar 19, 8:05 PM CST | Severe Thunderstorm Warning | EWX | Comal | 25 min |
| Mar 19, 8:20 PM CST | Severe Thunderstorm Warning | EWX | Gonzales | 55 min |
| Mar 19, 8:33 PM CST | Severe Thunderstorm Warning | EWX | Bastrop, Caldwell, Travis | 57 min |
| Mar 19, 9:00 PM CST | Severe Thunderstorm Warning | EWX | Dimmit | 60 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.