Alert archive / Texas / Severe Thunderstorm Warnings in 2000
Severe Thunderstorm Warning 5, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Feb 22, 2000, 8:47 PM CST for Gillespie County, Texas. It was in force for 58 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
- Feb 22, 2000, 8:47 PM CST (02:47 UTC)
- Expired
- Feb 22, 2000, 9:45 PM CST
- In force
- 58 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Gillespie County, TX
The radar
The Austin/San Antonio radar (KEWX), 121 km from the middle of the area, began a volume at 02:48 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 |
|---|---|---|---|
| Feb 22, 9:24 PM CST | Hail 0.75 | Fredericksburg, 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 |
|---|---|---|---|
| Feb 22, 7:00 PM CST | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Del Rio, TX (KDRT), launched 00:00Z, 2.8 hours before the alert went out and 203 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
- 2362 J/kg
- Mixed-layer CIN
- -17 J/kg
- Mixed-layer LCL
- 1410 m above ground
- 0-6 km bulk shear
- 70 kt
- 0-1 km storm-relative helicity
- 27 m²/s²
- 0-3 km storm-relative helicity
- 155 m²/s²
- Significant tornado parameter
- 1.5
- Supercell composite
- 9.9
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS54 KEWX 230248 SVRSAT TXC171-230345- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 847 PM CST TUE FEB 22 2000 THE NATIONAL WEATHER SERVICE IN AUSTIN/SAN ANTONIO HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR THE FOLLOWING COUNTIES IN TEXAS... GILLESPIE COUNTY * UNTIL 945 PM CST * AT 847 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 20 MILES WEST OF FREDERICKSBURG...OR ABOUT 20 MILES NORTH OF KERRVILLE...MOVING EAST AT 20 MPH. LARGE HAIL IS POSSIBLE WITH THIS SEVERE THUNDERSTORM. THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH YOU SHOULD PREPARE FOR DAMAGING WINDS IN EXCESS OF 55 MPH...LARGE HAIL...AND DEADLY LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS. .END/ LAT...LON 3036 9931 3021 9918 3022 9864 3052 9882
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 Feb 22, 2:30 PM CST, 6 hours 17 minutes earlier.
Area forecast discussion, Feb 22, 2:30 PM CST, 6 hours 17 minutes before
SOUTH CENTRAL TEXAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 230 PM CST TUE FEB 22 2000 SQUALL LINE DEVELOPMENT VERY EVIDENT ON SATELLITE IMAGERY AND DOPPLER...STRETCHING FROM SOUTHERNMOST POINT NEAR SANDERSON NORTHEASTWARD. MOVEMENT OF LINE IS EASTWARD WITH INDIVIDUAL CELL TRAJECTORY TOWARD THE NORTHEAST. CURRENT MOVEMENT AND DEVELOPMENT LOOKS TO TAKE THE SOUTHERN END OF THE LINE ACROSS SOME OF OUR EDWARDS PLATEAU AND HILL COUNTRY COUNTIES THIS AFTERNOON AND EARLY EVENING. TORNADO WATCH #44 ALREADY IN PLACE UNTIL 7 PM FOR THESE COUNTIES THAT APPEAR TO BE MOST IN HARMS WAY. UPPER-LEVEL SYSTEM RESPONSIBLE FOR THIS DEVELOPMENT SHOULD BE BY EARLY WEDNESDAY MORNING WITH RIDGE BUILDING OVER US. THEREFORE POPS WILL BE IN FOR TONIGHT ONLY. CLOUDS SHOULD ALSO BE BY AS WELL COME WEDNESDAY ALONG WITH DRIER AIR MASS. CONTINUED MILD TO WARM DAYS. AUS 52/76/47/76 7100 SAT 58/77/50/79 5-00 DRT 53/81/50/80 3000 .EWX...NONE.
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 22, 7:47 PM CST | Severe Thunderstorm Warning | EWX | Edwards | 28 min |
| Feb 22, 8:08 PM CST | Tornado Warning | EWX | Edwards | 67 min |
| Feb 22, 8:19 PM CST | Severe Thunderstorm Warning | EWX | Val Verde | 56 min |
| Feb 22, 8:23 PM CST | Tornado Warning | EWX | Val Verde | 67 min |
| Feb 22, 8:40 PM CST | Severe Thunderstorm Warning | EWX | Llano | 65 min |
| Feb 22, 8:45 PM CST | Severe Thunderstorm Warning | EWX | Burnet | 60 min |
| Feb 22, 8:54 PM CST | Severe Thunderstorm Warning | EWX | Real | 66 min |
| Feb 22, 8:59 PM CST | Tornado Warning | EWX | Kinney | 31 min |
| Feb 22, 9:07 PM CST | Tornado Warning | EWX | Edwards | 38 min |
| Feb 22, 9:30 PM CST | Tornado Warning | EWX | Kinney | 30 min |
| Feb 22, 9:46 PM CST | Severe Thunderstorm Warning | EWX | Williamson | 59 min |
| Feb 22, 9:55 PM CST | Tornado Warning | EWX | Kinney | 35 min |
| Feb 22, 10:06 PM CST | Tornado Warning | EWX | Uvalde | 39 min |
| Feb 22, 10:36 PM CST | Tornado Warning | EWX | Uvalde | 39 min |
| Feb 22, 11:10 PM CST | Severe Thunderstorm Warning | EWX | Medina | 65 min |
| Feb 22, 11:30 PM CST | Severe Thunderstorm Warning | EWX | Frio, Uvalde, Zavala | 60 min |
| Feb 22, 11:44 PM CST | Tornado Warning | EWX | Zavala | 76 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.