Alert archive / Texas / Severe Thunderstorm Warnings in 2000
Severe Thunderstorm Warning 20, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Mar 10, 2000, 5:18 PM CST for DeWitt County, Gonzales County, Karnes County, Texas. It was in force for 57 min. 2 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
- Mar 10, 2000, 5:18 PM CST (23:18 UTC)
- Expired
- Mar 10, 2000, 6:15 PM CST
- In force
- 57 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties
Counties DeWitt County, TX, Gonzales County, TX, Karnes County, TX
The radar
The Austin/San Antonio radar (KEWX), 76 km from the middle of the area, began a volume at 23:22 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 10, 6:00 PM CST | Thunderstorm Wind | Hockheim, TX | |
| Mar 10, 6:00 PM CST | Thunderstorm Wind | Gonzales, 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 nearest sounding before it
Corpus Christi, TX (KCRP), launched 12:00Z, 11.3 hours before the alert went out and 159 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
- 1967 J/kg
- Mixed-layer CIN
- -57 J/kg
- Mixed-layer LCL
- 556 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- 131 m²/s²
- 0-3 km storm-relative helicity
- 116 m²/s²
- Significant tornado parameter
- 0.8
- Supercell composite
- 4.8
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS54 KEWX 102319 SVRSAT TXC123-177-255-110015- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 518 PM CST FRI MAR 10 2000 THE NATIONAL WEATHER SERVICE IN AUSTIN/SAN ANTONIO HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR THE FOLLOWING COUNTIES IN TEXAS... GONZALES COUNTY DEWITT COUNTY KARNES COUNTY * UNTIL 615 PM CST * AT 518 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED SEVERE THUNDERSTORMS NEAR GILLETT AND 7 MILES WEST OF WESTHOFF MOVING EAST AT 10 MPH. IF SEVERE WEATHER APPROACHES YOUR AREA...GO INSIDE A STURDY SHELTER AWAY FROM CREEK BEDS AND OTHER FLOOD-PRONE AREAS. REMEMBER...A SEVERE THUNDERSTORM CAN PRODUCE LARGE DAMAGING HAIL...DAMAGING WINDS IN EXCESS OF 55 MPH...DEADLY LIGHTNING...AND VERY HEAVY RAIN. .END/
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.
NWS Austin/San Antonio, TX wrote its last area forecast discussion before this severe thunderstorm warning went out at Mar 10, 2:00 PM CST, 3 hours 18 minutes earlier.
Area forecast discussion, Mar 10, 2:00 PM CST, 3 hours 18 minutes before
SOUTH CENTRAL TEXAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 200 PM CST FRI MAR 10 2000 CLEARING HAS STARTED OVER WESTERN CWA. SOME SHOWERS DEVELOPING IN THE CLEAR AIR...BUT DRIER AIR LIMITING THESE. A FEW SHOWERS OVER THE SE COURTESY THE SEA BREEZE. MODELS INDICATE CHANCE POPS FOR SAT ANTONIO AREA THIS EVENING AND AUSTIN AND EAST TONIGHT AS UPPER TROUGH SWINGS ACROSS. WINDY BEHIND FRONT TONIGHT THROUGH SATURDAY MORNING WILL WARRANT CAUTION OR AREA LAKES. WENT BELOW GUIDANCE FOR TONIGHT AND SATURDAY NIGHT WITH GOOD COLD ADVECTION AT HAND. MRF SUGGESTS SHOWERY WEATHER FOR MONDAY THROUGH FRIDAY. PRELIMINARY NUMBERS AUS 48/66/37/70 4100 SAT 49/68/39/71 2000 DRT 46/71/42/73 0000 .EWX...NONE. 03/01/CA
In the hours before
Local storm report, Mar 10, 4:59 PM CST, 19 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO, TX
459 PM CST FRI MAR 10 2000
TIME(CST) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0455 PM 7 W LLANO TX 1.75 INCH HAIL
03/10/00 LLANO
0503 PM 4 W LLANO TX 1.75 INCH HAIL
03/10/00 LLANO
0525 PM 4 W LLANO TX 2.00 INCH HAIL
03/10/00 LLANO
JPBLocal storm report, Mar 10, 5:05 PM CST, 13 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO, TX
505 PM CST FRI MAR 10 2000
TIME(CST) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0455 PM 7 W LLANO TX 1.75 INCH HAIL
03/10/00 LLANO
JPBLocal storm report, Mar 10, 5:09 PM CST, 9 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO, TX
509 PM CST FRI MAR 10 2000
TIME(CST) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION.?...
0455 PM 7 W LLANO TX 1.75 INCH HAIL
03/10/00 LLANO
0503 PM 4 W LLANO TX 1.75 INCH HAIL
03/10/00 LLANO
JPBThe office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 10, 4:24 PM CST | Severe Thunderstorm Warning | EWX | Llano | 36 min |
| Mar 10, 4:57 PM CST | Severe Thunderstorm Warning | EWX | Llano | 48 min |
| Mar 10, 5:26 PM CST | Tornado Warning | EWX | Llano | 49 min |
Nearby
Severe Thunderstorm Warnings in Texas, 2000Every severe thunderstorm warning in 2000
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.