Alert archive / Texas / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 18, NWS Houston/Galveston, TX

March 18, 2000Houston County, Madison County, Walker County, Texas

NWS Houston/Galveston, TX issued this severe thunderstorm warning at Mar 18, 2000, 2:40 PM CST for Houston County, Madison County, Walker County, Texas. It was in force for 50 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
Mar 18, 2000, 2:40 PM CST (20:40 UTC)
Expired
Mar 18, 2000, 3:30 PM CST
In force
50 min
Issued by
NWS Houston/Galveston, TX
Area
Whole counties; the outline is the Mesonet’s reconstruction

Counties Houston County, TX, Madison County, TX, Walker County, TX

What was reported inside it

TimeReportWhereRemark
Mar 18, 2:43 PM CSTHail 0.75Lovelady, 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.

IssuedProductOfficeLasted
Mar 18, 2:15 PM CSTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Shreveport, LA (KSHV), launched 12:00Z, 8.7 hours before the alert went out and 244 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, Shreveport, LA at 12:00Z on 2000-03-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Shreveport, LA at 12:00Z on 2000-03-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 256 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
772 m above ground
0-6 km bulk shear
48 kt
0-1 km storm-relative helicity
256 m²/s²
0-3 km storm-relative helicity
306 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.

000 
WUUS54 KHGX 182043
SVRHOU
TXC225-313-471-182130-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
240 PM CST SAT MAR 18 2000

THE NATIONAL WEATHER SERVICE IN HOUSTON/GALVESTON TX HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHERN WALKER COUNTY IN SOUTHEAST TEXAS
  HOUSTON COUNTY IN SOUTHEAST TEXAS
  MADISON COUNTY IN SOUTHEAST TEXAS

* UNTIL 330 PM CST

* AT 236 PM CST...DOPPLER RADAR INDICATED SEVERE THUNDERSTORMS 13   
  MILES SOUTHWEST OF MIDWAY AND 10 MILES SOUTHWEST OF CROCKETT...
  MOVING NORTHEAST AT 20 MPH. THESE STORMS ARE LIKELY PRODUCING 
  LARGE HAIL.

* LOCATIONS IN THE PATH OF THE SEVERE THUNDERSTORM INCLUDE...
  MIDWAY
  AUSTONIO

MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR
BUSINESS.

PLEASE REPORT SEVERE WEATHER TO THE COUNTY SHERIFF...LOCAL POLICE...
OR DEPARTMENT OF PUBLIC SAFETY. THEY WILL RELAY YOUR REPOR[T TO THE
NATIONAL WEATHER SERVICE.

LAT...LON 3087 9586 3080 9586 3083 9568 3107 9544
          3120 9526 3134 9565

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 Houston/Galveston, TX wrote its last area forecast discussion before this severe thunderstorm warning went out at Mar 18, 11:20 AM CST, 3 hours 20 minutes earlier.

Area forecast discussion, Mar 18, 11:20 AM CST, 3 hours 20 minutes before
SOUTHEAST TEXAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
1120 AM CST SAT MAR 18 2000

ONGOING COVECTION OVER COASTAL BEND EXPANDING NORTH ATTM APPEARS TO
BE TIED TO VORT MAX OUT OF S TX. STRONG CONVECTION DEVELOPING
OVER THE GULF WELL SOUTH OF PSX. THIS CLUSTER SHOULD PROGRESS EAST AS
MID LEVEL DRY AIR INTRUDES.  SHRA/TSRA WILL LIKELY EXPAND NORTH AND
EAST INTO THE EASTERN PORTIONS OF THE SVR WATCH AREA. HAVE UPDATED
ZONES FOR INCLUSION OF SEVERE AND WATCH. PRIMARY THREAT APPEARS TO BE
HAIL.

.KHGX...SVR WATCH SOUTHEAST 1/2 TIL 4 PM.

45/41/D

PRELIMS...
CLL BE 075/046 065/043 072 252
IAH BE 075/052 068/045 072 353
GLS BE 073/061 067/052M 072 453

In the hours before

Special weather statement, Mar 18, 12:10 PM CST, 2 hours 30 minutes before
GMZ330-335-350-355-370-375-TXZ177-178-199-200-210>214-226-227-235>238-
182200-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
1210 PM CST SAT MAR 18 2000

...SEVERE THUNDERSTORM WATCH IN EFFECT TIL 4 PM...

THE STORM PREDICTION CENTER HAS ISSUED A SEVERE THUNDERSTORM WATCH
UNTIL 4 PM FOR AREAS ALONG AND SOUTHEAST OF A LINE FROM CUERO TO
COLUMBUS TO PRARIE VIEW TO CONROE TO COLDSPRING.  THIS INCLUDES
THE MAJOR COMMUNITIES OF EDNA...BAY CITY..EL CAMPO...RICHMOND...
SEALY...HOUSTON METROPOLITAN AREA...ANGLETON...GALVESTON...ANAHUAC...
LIBERTY...CONROE...AND COLDSPRING.  A SEVERE THUNDERSTORM WATCH MEANS
CONDITIONS ARE FAVORABLE FOR SEVERE THUNDERSTORMS TO OCCUR IN AND NEAR
THE WATCH AREA.

A FEW STRONG TO SEVERE THUNDERSTORMS DEVELOPED NEAR ROCKPORT AND
BEEVILLE ALONG THE TEXAS COASTAL BEND THIS MORNING. A SECOND CLUSTER
OF STORMS DEVELOPED OVER THE GULF MEXICO SOUTH OF ROCKPORT. THESE
TWO AREAS OF THUNDERSTORMS WERE BEING AIDED BY A VIGOROUS UPPER LEVEL
SYSTEM THAT WAS MOVING EAST OUT OF SOUTH TEXAS AND A WARM FRONT MOVING
NORTH THROUGH THE REGION. WIDELY SCATTERED THUNDERSTORMS WILL
PROBABLY SPREAD NORTHEAST ACROSS THE WATCH AREA. THE PRIMARY
THREAT OF SEVERE WEATHER ASSOCIATED WITH THESE STORMS WILL BE LARGE
HAIL AND POSSIBLY STRONG DAMAGING WINDS.

 STRONG TO SEVERE THUNDERSTORMS WILL ALSO SPREAD ACROSS THE UPPER
TEXAS COASTAL AND OFFSHORE WATERS BRINGING VERY STRONG AND GUSTY
WINDS.

STAY TUNED TO NOAA WEATHER RADIO AND OTHER MEDIA SOURCES FOR THE
LATEST UPDATES.
Special weather statement, Mar 18, 2:30 PM CST, 10 minutes before
TXZ163-164-176>179-195>200-212-190200-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
230 PM CST SAT MAR 18 2000

...SEVERE THUNDERSTORM WATCH IN EFFECT UNTIL 8 PM...

THE SEVERE STORMS PREDICTION CENTER HAS ISSUED A SEVERE THUNDERSTORM
WATCH FOR THE NORTHERN PORTION OF SOUTHEAST TEXAS EFFECTIVE UNTIL 8
PM THIS EVENING.  THE WATCH IS GENERALLY NORTH OF A LINE FROM
BRENHAM TO THE WOODLANDS TO LIBERTY.  THIS WATCH ALSO INCLUDES THE
MAJOR COMMUNITIES OF CALDWELL...BRYAN/COLLEGE STATION...
MADISONVILLE...CROCKETT...GROVETON...LIVINGSTON...COLD SPRINGS...
HUNTSVILLE...CONROE...NAVASOTA AND HEMPSTEAD.  A SEVERE THUNDERSTORM
WATCH MEANS CONDITIONS ARE FAVORABLE FOR SEVERE THUNDERSTORMS TO OCCUR
IN AND NEAR THE WATCH AREA.

BANDS OF THUNDERSTORMS ARE FORECAST TO CONTINUE TO FORM AND INTENSIFY
IN THE WATCH AREA THROUGH THIS EVENING.  THE MAIN THREAT FROM THESE
STORMS WILL BE LARGE HAIL AND DOWNBURST WINDS.  AT 230 PM...THE
STRONGEST STORMS WERE FROM NORTHEAST OF BEDIAS IN GRIMES COUNTY TO
MIDWAY IN MADISON COUNTY.  THE STORMS WERE MOVING TO THE EAST
NORTHEAST AT ABOUT 30 MPH.

ALSO...SEVERE THUNDERSTORM WATCH NUMBER 100 REMAINS IN EFZFECT UNTIL 4
PM FOR THE SOUTHERN HALF OF SOUTHEAST TEXAS.  AT 230 PM NO
SIGNIFICANT THUNDERSTORM ACTIVITY WAS OCCURING IN THIS WATCH AREA.

STAY TUNED TO NOAA WEATHER RADIO AND OTHER MEDIA SOURCES FOR THE
LATEST UPDATES.

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.