Alert archive / Texas / Severe Thunderstorm Warnings in 2000
Severe Thunderstorm Warning 47, NWS Houston/Galveston, TX
NWS Houston/Galveston, TX issued this severe thunderstorm warning at Apr 2, 2000, 4:45 PM CDT for Chambers County, Texas. It was in force for 60 min. No storm report in the archive falls 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.
The facts
- Issued
- Apr 2, 2000, 4:45 PM CDT (21:45 UTC)
- Expired
- Apr 2, 2000, 5:45 PM CDT
- In force
- 60 min
- Issued by
- NWS Houston/Galveston, TX
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Chambers 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 |
|---|---|---|---|
| Apr 2, 12:30 PM CDT | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Lake Charles Mun, LA (KLCH), launched 12:00Z, 9.8 hours before the alert went out and 137 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
- 984 J/kg
- Mixed-layer CIN
- -66 J/kg
- Mixed-layer LCL
- 512 m above ground
- 0-6 km bulk shear
- 51 kt
- 0-1 km storm-relative helicity
- 122 m²/s²
- 0-3 km storm-relative helicity
- 97 m²/s²
- Significant tornado parameter
- 0.6
- Supercell composite
- 4.7
The text
As transmitted, in the capitals the NWS used until 2016.
078 WUUS54 KHGX 022145 SVRHOU TXC071-022245- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 445 PM CDT SUN APR 2 2000 THE NATIONAL WEATHER SERVICE IN HOUSTON/GALVESTON TX HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... CHAMBERS COUNTY IN SOUTHEAST TEXAS * UNTIL 545 PM CDT * AT 445 PM CDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 6 MILES NORTHWEST OF SMITH POINT...MOVING NORTHEAST AT 40 MPH. * LOCATIONS IN THE PATH OF THE SEVERE THUNDERSTORM INCLUDE... ANAHUAC STOWELL WINNIE MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. A TORNADO WATCH IS ALSO IN EFFECT. SEVERE THUNDERSTORMS CAN PRODUCE TORNADOES WITH LITTLE OR NO WARNING. PLEASE REPORT SEVERE WEATHER TO THE COUNTY SHERIFF...LOCAL POLICE... OR DEPARTMENT OF PUBLIC SAFETY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE. LAT...LON 2968 9488 2952 9477 2983 9407 3005 9421
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 Apr 2, 3:25 PM CDT, 1 hour 20 minutes earlier.
Area forecast discussion, Apr 2, 3:25 PM CDT, 1 hour 20 minutes before
SOUTHEAST TEXAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
325 PM CDT SUN APR 2 2000
THUNDERSTORMS FIRING UP EARLY THIS MORNING ACROSS SW PART OF CWFA
BECOMING SEVERE. IR LOOP SHOWS VERY COLD CLOUD TOPS (-65 TO -73 DEG
C). THIS AREA HAS VERY HIGH MOISTURE WITH PW VALUES PROBABLY
APPROACHING 2 INCHES. SURROUNDING SOUNDINGS WOULD INDICATE POTENTIAL
FOR SPINNING STORMS. SVR THUNDERSTORM WATCH OVER MUCH OF CWFA
(EXCEPT EXTREME NORTHERN ZONES) TIL 13Z.
AVN/NGM/ETA IN CLOSE AGREEMENT MOVING MAJOR UPPER LEVEL TROUGH. BEST
SYNOPTIC LIFT HAPPENING RIGHT NOW BUT STRONGER DYNAMICS WILL BE LATE
SUNDAY NIGHT/EARLY MONDAY MORNING. WEAK COLD FRONT WILL WAFFLE ACROSS
SOUTHERN PORTIONS OF CWFA TODAY...RETREAT NORTHWARD TONIGHT. STRONG FRONT
TO MOVE ACROSS REGION DAYTIME MONDAY DROPPING TEMPS TO THE 40S
INLAND MONDAY NIGHT. WITH HIGH PWS VALUES AND POTENTIAL FOR CONVECTIVE
TRAINING (UPPER FLOW PARALLEL TO FRONTAL BOUNDARY)...HEAVY RAIN CAN
BE EXPECTED. HOWEVER...CONSIDERING DRY ANTECEDENT CONDITIONS...WILL
MENTION LOCALLY HEAVY RAIN IN ZONES FOR NOW. ADDITIONAL HEAVY
RAINFALL TONIGHT (IF WIDESPREAD) MAY CALL FOR AN FFA.
37/46
.KHGX...SEVERE THUNDERSTORM WATCH 142 FOR ALL EXCEPT BURLESON...BRAZOS
...MADISON... AND HOUSTON COUNTIES.
PRELIMS...
CLL TT 069/059 070/042 066 786
IAH TT 073/063 072/045 067 886
GLS TT 074/070 073/053 066 887In the hours before
Special weather statement, Apr 2, 12:27 PM CDT, 4 hours 18 minutes before
TXZ178-179-199-200-212>214-226-227-236>238-022300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 1227 PM CDT SUN APR 2 2000 ...TORNADO WATCH IN EFFECT UNTIL 6 PM FOR PORTIONS OF SOUTHEAST TEXAS... COUNTIES IN IN THE WATCH AREA INCLUDE... BRAZORIA...CHAMBERS...FORT BEND...GALVESTON...HARRIS...LIBERTY... MATAGORDA...MONTGOMERY...POLK...SAN JACINTO...WALLER...AND WHARTON. AT 1225 PM THUNDERSTORMS WERE BEGINNING TO DEVELOP ALONG AND AHEAD OF A COLD FRONT THAT WAS MOVING THROUGH SOUTHEAST TEXAS. ATMOSPHERIC CONDITIONS AHEAD OF THE FRONT REMAIN CONDUCIVE FOR THE DEVELOPMENT OF SEVERE THUNDERSTORMS AND TORNADOES. OTHER SEVERE WEATHER RISKS INCLUDE LARGE HAIL AND DAMAGING WIND. SOME OF THE THUNDERSTORMS MAY DEVELOP AND MOVE REPEATEDLY OVER THE SAME AREAS...PRODUCING VERY HEAVY RAINFALL. THIS WILL BE ESPECIALLY TRUE NEAR THE COLD FRONT. RAINFALL AMOUNTS COULD APPROACH 3 TO 5 INCHES.J STAY TUNED TO NOAA WEATHER RADIO OR OTHER RELIABLE WEATHER NEWS SOURCES FOR FURTHER UPDATES AND POSSIBLE WARNINGS ON THIS SEVERE WEATHER THREAT.
The office that day
Everything else NWS Houston/Galveston, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 2, 12:47 AM CST | Severe Thunderstorm Warning | HGX | Polk, San Jacinto | 43 min |
| Apr 2, 1:04 AM CST | Severe Thunderstorm Warning | HGX | Wharton | 41 min |
| Apr 2, 3:11 AM CDT | Severe Thunderstorm Warning | HGX | Fort Bend, Harris | 49 min |
| Apr 2, 3:19 AM CDT | Severe Thunderstorm Warning | HGX | Jackson | 41 min |
| Apr 2, 3:30 AM CDT | Severe Thunderstorm Warning | HGX | Polk | 45 min |
| Apr 2, 3:32 AM CDT | Severe Thunderstorm Warning | HGX | Harris, Waller | 43 min |
| Apr 2, 3:55 AM CDT | Severe Thunderstorm Warning | HGX | Montgomery | 35 min |
| Apr 2, 4:02 AM CDT | Flash Flood Warning | HGX | Montgomery | 3 hr |
| Apr 2, 4:11 AM CDT | Severe Thunderstorm Warning | HGX | Harris | 49 min |
| Apr 2, 4:21 AM CDT | Severe Thunderstorm Warning | HGX | Polk, San Jacinto | 54 min |
| Apr 2, 4:38 AM CDT | Severe Thunderstorm Warning | HGX | Liberty | 52 min |
| Apr 2, 5:05 AM CDT | Flash Flood Warning | HGX | Harris | 115 min |
| Apr 2, 5:07 AM CDT | Severe Thunderstorm Warning | HGX | Harris | 53 min |
| Apr 2, 5:55 AM CDT | Severe Thunderstorm Warning | HGX | Harris, Liberty | 50 min |
| Apr 2, 7:43 AM CDT | Severe Thunderstorm Warning | HGX | Fort Bend | 47 min |
| Apr 2, 12:29 PM CDT | Severe Thunderstorm Warning | HGX | Matagorda | 71 min |
| Apr 2, 12:33 PM CDT | Severe Thunderstorm Warning | HGX | Brazoria | 57 min |
| Apr 2, 1:24 PM CDT | Tornado Warning | HGX | Brazoria, Matagorda | 36 min |
| Apr 2, 1:31 PM CDT | Severe Thunderstorm Warning | HGX | Galveston, Harris | 59 min |
| Apr 2, 2:08 PM CDT | Severe Thunderstorm Warning | HGX | Chambers | 67 min |
| Apr 2, 2:26 PM CDT | Severe Thunderstorm Warning | HGX | Liberty | 64 min |
| Apr 2, 2:37 PM CDT | Severe Thunderstorm Warning | HGX | Galveston | 53 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.