Alert archive / Texas / Severe Thunderstorm Warnings in 2000
Severe Thunderstorm Warning 54, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Mar 23, 2000, 3:44 AM CST for Val Verde County, Texas. It was in force for 61 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Mar 23, 2000, 3:44 AM CST (09:44 UTC)
- Expired
- Mar 23, 2000, 4:45 AM CST
- In force
- 61 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties
County Val Verde County, TX
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 23, 12:00 AM CST | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Del Rio, TX (KDRT), launched 00:00Z, 9.7 hours before the alert went out and 66 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
- 2295 J/kg
- Mixed-layer CIN
- -96 J/kg
- Mixed-layer LCL
- 1411 m above ground
- 0-6 km bulk shear
- 64 kt
- 0-1 km storm-relative helicity
- 115 m²/s²
- 0-3 km storm-relative helicity
- 362 m²/s²
- Significant tornado parameter
- 2.0
- Supercell composite
- 19.7
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS54 KEWX 230945 SVRSAT TXC465-231045- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 344 AM CST THU MAR 23 2000 THE NATIONAL WEATHER SERVICE IN AUSTIN/SAN ANTONIO HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR THE FOLLOWING COUNTIES IN TEXAS... VAL VERDE COUNTY * UNTIL 445 AM CST * AT 344 AM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 4 MILES NORTH OF COMSTOCK...MOVING EAST AT 40 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 23, 2:30 AM CST, 1 hour 14 minutes earlier.
Area forecast discussion, Mar 23, 2:30 AM CST, 1 hour 14 minutes before
SOUTH CENTRAL TEXAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 230 AM CST THU MAR 23 2000 UPPER LOW IN SOUTHWEST NEW MEXICO APPEARS TO BE KICKING OUT TOWARD THE EAST NORTHEAST AS THE MODELS HAVE INDICATED. MAIN UPPER DYNAMICS WILL REMAIN NORTH OF FORECAST AREA BUT SURFACE CONVERGENCE LIKELY TO SPREAD CONVECTION EASTWARD ACROSS THE NORTHERN HALF OF AREA DURING THE DAY. FORECAST PROBLEM IS JUST HOW FAR SOUTH THE SOUTHERN END OF CONVECTION LINE WILL EXTEND AND PRECISE TIMING OF THE LINE. CONVECTION CURRENTLY IS LYING ALONG THE 567 1000-500MB THICKNESS LINE AND NEW 06Z RUC MOVES THAT LINE TO THE AUS AREA BY 18Z. THAT SEEMS REASONABLE. ETA PRECIP PATTERN IS NOT VERIFYING WELL AND AVN IS ALREADY TOO FAST ON EASTWARD MOVEMENT. 06Z RUC SEEMS TO HAVE THE BEST PRECIP PATTERN. ADJUSTING RUC PRECIP PATTERN TO CURRENT CONVECTION SHOWS THAT THE SOUTHERN END WILL BUILD ONLY SLIGHTLY FARTHER SOUTH AS IT MOVES EAST. SCATTERED LIGHTER SHOWERS OVER EASTERN COUNTIES ARE SPREADING NORTHWARD AHEAD OF THE STRONG CONVECTION. SURFACE NORTHWEST WINDS ARE QUITE STRONG BEHIND THE CONVECTION SO EXPECT THE DRY LINE TO SPREAD EASTWARD ACROSS THE AREA DURING THE DAY BUT WEAKEN WHILE DOING SO. MODELS HAVE BEEN CONSISTENT IN HALTING THE DRY LINE AND MOVING IT BACK WEST THURSDAY NIGHT AND FRIDAY AS UPPER LOW RETREATS NORTHEASTWARD. ALTHOUGH THE SURFACE MOISTURE LIKELY WILL MOVE BACK NORTHWESTWARD...ENOUGH DEEP LAYER DRYING WILL OCCUR TO KEEP RAIN CHANCES LOW AFTER TODAY. NEXT PRECIP SYSTEM DUE IN AREA AROUND MONDAY. PRELIMS AUS 8O/56/82/63 7001 SAT 83/60/82/65 5001 DRT 87/59/84/63 2001 .EWX...NONE. 16/03/20
In the hours before
Special weather statement, Mar 22, 9:50 PM CST, 5 hours 54 minutes before
TXZ183>185-202-203-230500- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 950 PM CST WED MAR 22 2000 ...TORNADO WATCH IN EFFECT UNTIL 1 AM CST... AT 945 PM CST...DOPPLER RADAR INDICATED THUNDERSTORMS DEVELOPING AND INTENSIFYING OVER THE MOUNTAINS OF NORTHEAST MEXICO. THESE STORMS WERE SOUTH AND SOUTHWEST OF LANGTRY AND COMSTOCK...MOVING NORTH NORTHEAST AT 30 TO 40 MPH. THE STORMS WILL CROSS THE RIO GRANDE RIVER BETWEEN 1030 AND 11 PM...AND COULD BECOME SEVERE AS THEY ENTER VAL VERDE COUNTY. STAY TUNED TO NOAA WEATHER RADIO...COMMERCIAL RADIO OR TELEVISION STATIONS...OR YOUR CABLE TELEVISION SERVICE PROVIDER FOR LATER STATEMENTS CONCERNING THIS DANGEROUS SEVERE WEATHER THREAT.
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 23, 5:45 AM CST | Severe Thunderstorm Warning | EWX | Real | 60 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; the sounding from the Mesonet's radiosonde archive.