Alert archive / Texas / Severe Thunderstorm Watches in 2000
Severe Thunderstorm Watch 99
The Storm Prediction Center issued this severe thunderstorm watch at Mar 16, 2000, 8:00 PM CST for 36 counties in Texas. It was in force for 4 hr.
The area
The outline as issued.
The facts
- Issued
- Mar 16, 2000, 8:00 PM CST (02:00 UTC)
- Expired
- Mar 17, 2000, 12:00 AM CST
- In force
- 4 hr
- Issued by
- the Storm Prediction Center
All 36 counties
Austin County, TX, Bastrop County, TX, Bell County, TX, Brazos County, TX, Burleson County, TX, Caldwell County, TX, Colorado County, TX, DeWitt County, TX, Falls County, TX, Fayette County, TX, Fort Bend County, TX, Goliad County, TX, Gonzales County, TX, Grimes County, TX, Guadalupe County, TX, Hays County, TX, Houston County, TX, Jackson County, TX, Karnes County, TX, Lavaca County, TX, Lee County, TX, Leon County, TX, Madison County, TX, Matagorda County, TX, Milam County, TX, Montgomery County, TX, Robertson County, TX, Travis County, TX, Trinity County, TX, Victoria County, TX, Walker County, TX, Waller County, TX, Washington County, TX, Wharton County, TX, Williamson County, TX, Wilson County, TX
The radar
The Austin/San Antonio radar (KEWX), 97 km from the middle of the area, began a volume at 02:01 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.
Warnings issued inside it
7 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 16, 8:18 PM CST | Severe Thunderstorm Warning | EWX | DeWitt | 57 min |
| Mar 16, 9:15 PM CST | Severe Thunderstorm Warning | EWX | DeWitt | 30 min |
| Mar 16, 9:51 PM CST | Severe Thunderstorm Warning | EWX | Comal, Guadalupe | 54 min |
| Mar 16, 10:09 PM CST | Severe Thunderstorm Warning | HGX | Houston | 51 min |
| Mar 16, 10:58 PM CST | Severe Thunderstorm Warning | EWX | Guadalupe, Wilson | 47 min |
| Mar 16, 11:36 PM CST | Severe Thunderstorm Warning | EWX | Gonzales | 54 min |
| Mar 16, 11:47 PM CST | Severe Thunderstorm Warning | EWX | Guadalupe | 43 min |
The nearest sounding before it
Corpus Christi, TX (KCRP), launched 00:00Z, 2.0 hours before the alert went out and 229 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
- 630 J/kg
- Mixed-layer CIN
- -327 J/kg
- Mixed-layer LCL
- 1457 m above ground
- 0-6 km bulk shear
- 45 kt
- 0-1 km storm-relative helicity
- 92 m²/s²
- 0-3 km storm-relative helicity
- 120 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.0
The text
As transmitted, in the capitals the NWS used until 2016.
717 WWUS9 KMKC 170138 SEL9 MKC WW 170138 TXZ000-170600- URGENT - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WATCH NUMBER 99 STORM PREDICTION CENTER NORMAN OK 738 PM CST THU MAR 16 2000 THE STORM PREDICTION CENTER HAS ISSUED A SEVERE THUNDERSTORM WATCH FOR PORTIONS OF CENTRAL AND EASTERN TEXAS EFFECTIVE THIS THURSDAY NIGHT FROM 800 PM UNTIL MIDNIGHT CST. HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS. THE SEVERE THUNDERSTORM WATCH AREA IS ALONG AND 80 STATUTE MILES EAST AND WEST OF A LINE FROM 15 MILES SOUTH SOUTHWEST OF VICTORIA TEXAS TO 60 MILES NORTH OF COLLEGE STATION TEXAS. REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE FAVORABLE FOR 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. OTHER WATCH INFORMATION...THIS SEVERE THUNDERSTORM WATCH REPLACES SEVERE THUNDERSTORM WATCH NUMBER 96. WATCH NUMBER 96 WILL NOT BE IN EFFECT AFTER 800 PM CST. CONTINUE...WW 97...WW 98... DISCUSSION...SEVERE THUNDERSTORMS ALONG THE COLD FRONT FROM NEAR CLL TO SOUTHEAST OF SAT ARE CONTINUING TO MOVE EWD INTO MOIST AND UNSTABLE AIR MASS WITH MUCAPE AROUND 2000 J/KG. LARGE HAIL AND DAMAGING WIND GUSTS ARE POSSIBLE WITH THESE STORMS. FARTHER WEST...ELEVATED STORMS HAVE DEVELOPED WEST OF THE COLD FRONT WHERE INSTABILITY ALOFT REMAINS AHEAD OF APPROACHING UPPER TROUGH. LARGE HAIL IS THE MOST LIKELY THREAT WEST OF THE COLD FRONT. AVIATION...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 27030. ...WEISS 312,0950 283,0954 283,0981 312,0974
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 16, 7:15 PM CST | Severe Thunderstorm Watch | SPC | Anderson, Camp, Cass, Cherokee, Collin, Dallas and 20 more | 5 hr |
Nearby
Severe Thunderstorm Watches in Texas, 2000Every severe thunderstorm watch 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; radar from the NEXRAD Level II archive.