Alert archive / Texas / Tornado Watches in 2000
Tornado Watch 804
The Storm Prediction Center issued this tornado watch at Nov 23, 2000, 7:30 PM CST for 41 counties in Texas. It was in force for 6 hr.
The area
The outline as issued.
The facts
- Issued
- Nov 23, 2000, 7:30 PM CST (01:30 UTC)
- Expired
- Nov 24, 2000, 1:00 AM CST
- In force
- 6 hr
- Issued by
- the Storm Prediction Center
All 41 counties
Anderson County, TX, Austin County, TX, Bastrop County, TX, Bell County, TX, Bexar County, TX, Blanco County, TX, Bosque County, TX, Brazos County, TX, Burleson County, TX, Burnet County, TX, Caldwell County, TX, Colorado County, TX, Comal County, TX, Comanche County, TX, Coryell County, TX, Falls County, TX, Fayette County, TX, Freestone County, TX, Gillespie County, TX, Gonzales County, TX, Grimes County, TX, Guadalupe County, TX, Hamilton County, TX, Hays County, TX, Kendall County, TX, Lampasas County, TX, Lavaca County, TX, Lee County, TX, Leon County, TX, Limestone County, TX, Llano County, TX, Madison County, TX, McLennan County, TX, Medina County, TX, Milam County, TX, Mills County, TX, Robertson County, TX, San Saba County, TX, Travis County, TX, Washington County, TX, Williamson County, TX
Warnings issued inside it
6 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 23, 7:48 PM CST | Severe Thunderstorm Warning | EWX | Gillespie | 57 min |
| Nov 23, 8:31 PM CST | Flash Flood Warning | EWX | Bexar, Medina | 3 hr |
| Nov 23, 8:35 PM CST | Flash Flood Warning | EWX | Comal, Hays | 3 hr |
| Nov 23, 9:25 PM CST | Flash Flood Warning | EWX | Bastrop, Caldwell, Guadalupe, Travis, Williamson | 3 hr |
| Nov 23, 10:00 PM CST | Flash Flood Warning | EWX | Atascosa, Gonzales, Wilson | 3 hr |
| Nov 23, 10:31 PM CST | Flash Flood Warning | EWX | DeWitt, Fayette, Karnes, Lavaca, Lee | 3 hr |
The nearest sounding before it
Fort Worth, TX (KFWD), launched 00:00Z, 1.5 hours before the alert went out and 279 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
- 472 m above ground
- 0-6 km bulk shear
- 55 kt
- 0-1 km storm-relative helicity
- 126 m²/s²
- 0-3 km storm-relative helicity
- 149 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.5
The text
As transmitted, in the capitals the NWS used until 2016.
060 WWUS9 KMKC 240112 SEL4 SEL4 MKC WW 240105 TXZ000-240700- URGENT - IMMEDIATE BROADCAST REQUESTED TORNADO WATCH NUMBER 804 STORM PREDICTION CENTER NORMAN OK 705 PM CST THU NOV 23 2000 THE STORM PREDICTION CENTER HAS ISSUED A TORNADO WATCH FOR PORTIONS OF CENTRAL AND SOUTHEAST TEXAS EFFECTIVE THIS THURSDAY NIGHT AND FRIDAY MORNING FROM 730 PM UNTIL 100 AM CST. TORNADOES...HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS. THE TORNADO WATCH AREA IS ALONG AND 90 STATUTE MILES EAST AND WEST OF A LINE FROM 40 MILES EAST SOUTHEAST OF SAN ANTONIO TEXAS TO 25 MILES NORTH NORTHEAST OF WACO TEXAS. REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR TORNADOES AND SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE WARNINGS. DISCUSSION...MID LEVEL TROUGH CONTINUES TO MOVE E/ESEWD TOWARD CENTRAL TX. THUNDERSTORMS ARE EXPECTED TO INCREASE IN COVERAGE AND INTENSITY THE NEXT FEW HOURS AS LARGE SCALE ASCENT REACHES THE LOW- LEVEL MOISTURE/INSTABILITY AXIS ACROSS CENTRAL/SE TX. THE INITIAL SEVERE THREATS SHOULD BE ISOLATED DAMAGING GUSTS AND LARGE HAIL... WITH AN INCREASING THREAT OF SUPERCELLS/ISOLATED TORNADOES LATER TONIGHT ACROSS ERN PARTS OF WATCH AREA. AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 450. MEAN STORM MOTION VECTOR 26040. ...THOMPSON/CORFIDI 291,0992 315,0983 315,0953 291,0962
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 23, 10:00 PM CST | Tornado Watch | SPC | Aransas, Atascosa, Austin, Bastrop, Bee, Burleson and 24 more | 6 hr |
Nearby
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.