Alert archive / Texas / Severe Thunderstorm Warnings in 2000
Severe Thunderstorm Warning 80, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Apr 1, 2000, 10:36 PM CST for Blanco County, Texas. It was in force for 54 min. 1 report came from inside the area while it was in force.
The area
The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties, with what was reported inside it.
The facts
- Issued
- Apr 1, 2000, 10:36 PM CST (04:36 UTC)
- Expired
- Apr 1, 2000, 11:30 PM CST
- In force
- 54 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Blanco County, TX
The radar
The Austin/San Antonio radar (KEWX), 71 km from the middle of the area, began a volume at 04:38 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 |
|---|---|---|---|
| Apr 1, 11:00 PM CST | Hail 0.75 | Johnson City, TX | The hail was again reported by Amateur Radio Operators. |
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 1, 8:00 PM CST | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Del Rio, TX (KDRT), launched 00:00Z, 4.6 hours before the alert went out and 250 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 963 m above ground
- 0-6 km bulk shear
- 52 kt
- 0-1 km storm-relative helicity
- 73 m²/s²
- 0-3 km storm-relative helicity
- 335 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.8
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS54 KEWX 020436 SVRSAT TXC031-020530- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 1036 PM CST SAT APR 1 2000 THE NATIONAL WEATHER SERVICE IN AUSTIN/SAN ANTONIO HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR THE FOLLOWING COUNTIES IN TEXAS... BLANCO COUNTY * UNTIL 1130 PM CST * AT 1035 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 8 MILES SOUTHWEST OF BLANCO...MOVING NORTH AT 50 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... JOHNSON CITY AROUND 1050 PM CST 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. VERY LARGE HAIL IS POSSIBLE WITH THIS SEVERE THUNDERSTORM. IF YOU ARE IN THE PATH OF THE STORM..x.PUT YOUR CAR IN A GARAGE AND MOVE TO A SUBSTANTIAL SHELTER. .END/ LAT...LON 3017 9858 3002 9841 3034 9821 3045 9845
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 1, 8:19 PM CST | Severe Thunderstorm Warning | EWX | Atascosa | 71 min |
| Apr 1, 8:23 PM CST | Severe Thunderstorm Warning | EWX | Burnet | 67 min |
| Apr 1, 8:53 PM CST | Severe Thunderstorm Warning | EWX | Williamson | 67 min |
| Apr 1, 9:19 PM CST | Severe Thunderstorm Warning | EWX | Bexar | 56 min |
| Apr 1, 10:12 PM CST | Severe Thunderstorm Warning | EWX | Kendall | 63 min |
| Apr 1, 10:25 PM CST | Severe Thunderstorm Warning | EWX | Atascosa | 65 min |
| Apr 2, 9:15 AM CDT | Severe Thunderstorm Warning | EWX | Blanco, Burnet | 60 min |
| Apr 2, 11:57 AM CDT | Severe Thunderstorm Warning | EWX | Frio | 48 min |
| Apr 2, 12:17 PM CDT | Severe Thunderstorm Warning | EWX | Bexar | 58 min |
| Apr 2, 12:28 PM CDT | Severe Thunderstorm Warning | EWX | Atascosa | 42 min |
| Apr 2, 1:00 PM CDT | Tornado Warning | EWX | Bexar | 45 min |
| Apr 2, 1:32 PM CDT | Severe Thunderstorm Warning | EWX | Guadalupe | 43 min |
| Apr 2, 5:15 PM CDT | Severe Thunderstorm Warning | EWX | Burnet | 60 min |
| Apr 2, 6:08 PM CDT | Severe Thunderstorm Warning | EWX | Burnet | 52 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.