Alert archive / Texas / Severe Thunderstorm Watches in 2000

Severe Thunderstorm Watch 99

March 16, 200036 counties in Texas

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.

IssuedProductOfficeCountiesLasted
Mar 16, 8:18 PM CSTSevere Thunderstorm WarningEWXDeWitt57 min
Mar 16, 9:15 PM CSTSevere Thunderstorm WarningEWXDeWitt30 min
Mar 16, 9:51 PM CSTSevere Thunderstorm WarningEWXComal, Guadalupe54 min
Mar 16, 10:09 PM CSTSevere Thunderstorm WarningHGXHouston51 min
Mar 16, 10:58 PM CSTSevere Thunderstorm WarningEWXGuadalupe, Wilson47 min
Mar 16, 11:36 PM CSTSevere Thunderstorm WarningEWXGonzales54 min
Mar 16, 11:47 PM CSTSevere Thunderstorm WarningEWXGuadalupe43 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.

Skew-T log-pSkew-T log-p diagram, Corpus Christi, TX at 00:00Z on 2000-03-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 630 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Corpus Christi, TX at 00:00Z on 2000-03-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 92 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
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

Open this sounding in Storm Lab

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.

IssuedProductOfficeCountiesLasted
Mar 16, 7:15 PM CSTSevere Thunderstorm WatchSPCAnderson, Camp, Cass, Cherokee, Collin, Dallas and 20 more5 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.