Alert archive / Texas / Severe Thunderstorm Warnings in 2000
Severe Thunderstorm Warning 48, NWS Houston/Galveston, TX
NWS Houston/Galveston, TX issued this severe thunderstorm warning at Apr 3, 2000, 3:16 AM CDT for Chambers County, Harris County, Texas. It was in force for 44 min. 2 reports came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Apr 3, 2000, 3:16 AM CDT (08:16 UTC)
- Expired
- Apr 3, 2000, 4:00 AM CDT
- In force
- 44 min
- Issued by
- NWS Houston/Galveston, TX
- Area
- Whole counties
Counties Chambers County, TX, Harris County, TX
The radar
The Houston radar (KHGX), 35 km from the middle of the area, began a volume at 08:15 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Apr 3, 3:44 AM CDT | Hail 1.75 | Wallisville, TX | |
| Apr 3, 4:04 AM CDT | Tornado F1 | Anahuac, TX | Tornado near FM 1985 with rice dryers demolished and major tree damage at several homes. |
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 nearest sounding before it
Lake Charles Mun, LA (KLCH), launched 00:00Z, 8.3 hours before the alert went out and 180 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
- 656 J/kg
- Mixed-layer CIN
- -45 J/kg
- Mixed-layer LCL
- 541 m above ground
- 0-6 km bulk shear
- 51 kt
- 0-1 km storm-relative helicity
- 95 m²/s²
- 0-3 km storm-relative helicity
- 251 m²/s²
- Significant tornado parameter
- 1.0
- Supercell composite
- 9.2
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
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 3, 2:40 AM CDT, 36 minutes earlier.
Area forecast discussion, Apr 3, 2:40 AM CDT, 36 minutes before
SOUTHEAST TEXAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
240 AM CDT MON APR 3 2000
CLUSTER OF STRONG THUNDERSTORMS APPROACHING WESTERN ZONES WHILE AREA
OF CONVECTION FROM NEAR BAY CITY TO LIBERTY INCREASING IN AREAL
COVERAGE EARLY THIS MORNING. STRONG UPPER LEVEL TROUGH OF LOW
PRESSURE TO APPROACH REGION WITH TROUGH LINE OVR SE TEXAS BY
TONIGHT. MEANWHILE...STRONG UPPER LEVEL DIVERGENCE FROM ENTRANCE
REGION WITH HIGH PW VALUES OVER CWFA EARLY THIS MORNING WILL GREATLY
AID IN THE CONTINUING DEVELOPMENT OF THUNDERSTORMS. WILL MENTION
POSSIBLE SEVERE THUNDERSTORMS FOR THIS MORNING SE PORTIONS OF ZONES.
HEAVY RAINFALL GOOD POSSIBILITY AND WITH GROUND IN MANY AREAS
ALREADY SATURATED FROM PREVIOUS RAINS...WILL CONTINUE FFA FOR THIS
MORNING. EXPECT CONVECTION TO DIMINISH SIGNIFICANTLY BY EARLY
AFTERNOON WITH MAIN UPPER LEVEL ENERGY AND FRONTAL BOUNDARY MOVING
TO THE GULF. STRONG COLD FRONT WILL APPROACH NORTHERN ZONES BY MID
DAY AND COAST LATE AFTERNOON/EARLY EVENING. WOULD EXPECT CWA
CONDITIONS MARINE AREA BY TONIGHT. TEMPERATURES TO DIP TO THE 40S
TONIGHT WITH STRONG CAA FOR THIS TIME OF THE YEAR.
37/46
.KHGX...FLAS}H FLOOD WATCH IN EFFECT THIS MORNING FOR PORTIONS
OF SE TX (TXZ178-179-199-200-213-214-226-227-235>238).
PRELIMS
CLL TU 067/041 068/043 075 510
IAH TU 070/043 070/045 075 710
GLS TU 074/053 066/055 073 820In the hours before
Special weather statement, Apr 2, 9:45 PM CDT, 5 hours 31 minutes before
TXZ163-164-176>179-195>200-210>214-226-227-235>238-030800- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 945 PM CDT SUN APR 2 2000 ...TORNADO WATCH IN EFFECT UNTIL MIDNIGHT FOR THE EASTERN HALF OF SOUTHEAST TEXAS.... ...FLASH FLOOD WATCH IN EFFECT FOR EASTERN PORTIONS OF SOUTHEAST TEXAS THROUGH MONDAY MORNING... A TORNADO WATCH REMAINS IN EFFECT FOR THE FOLLOWING SOUTHEAST TEXAS COUNTIES UNTIL MIDNIGHT...BRAZORIA...CHAMBERS...FORT BEND... GALVESTON...HARRIS...LIBERTY...MONTGOMERY...POLK...AND SAN JACINTO. SHOWERS AND THUNDERSTORMS ARE BEGINNING TO REDEVELOP ACROSS EASTERN PORTIONS OF SOUTHEAST TEXAS. THE MAIN THREAT WITH THESE DEVELOPING STORMS WILL BE LARGE HAIL AND DAMAGING WINDS. REMEMBER...SEVERE THUNDERSTORMS CAN AND DO PRODUCE TORNADOES WITH LITTLE OR NO WARNING. ADDITIONAL SHOWERS AND THUNDERSTORMS HAVE BEGUN TO DEVELOP TO OUR WEST ACROSS PORTIONS OF THE HILL COUNTY AND SOUTH CENTRAL TEXAS. THIS ACTIVITY IS DEVELOPING IN RESPONSE TO A STRONG DISTURBANCE LOCATED TO THE SOUTHWEST OF TEXAS MOVING TOWARD THE STATE. A STRONG SUBTROPICAL JET STREAM WILL INTERACT WITH AN UNSTABLE AIRMASS ACROSS THE STATE TO PRODUCE ADDITIONAL SHOWERS AND THUNDERSTORMS FOR THE REMAINDER OF THE EVENING AND OVERNIGHT HOURS. SOME OF THESE STORMS MAY BECOME SEVERE AS THEY HEAD TOWARD THE SOUTHEAST TEXAS AREA...AND ADDITIONAL SEVERE THUNDERSTORM WATCHES MAY BE REQUIRED LATER TONIGHT. A FLASH FLOOD WATCH REMAINS IN EFFECT FOR THE FOLLOWING SOUTHEAST TEXAS COUNTIES THROUGH MONDAY MORNING...BRAZORIA...CHAMBERS...FORT BEND...GALVESTON...HARRIS...JACKSON...LIBERTY...MATAGORDA... MONTGOMERY...POLK...SAN JACINTO...AND WHARTON. SHOWERS AND THUNDERSTORMS THAT ARE DEVELOPING OVER PORTIONS OF SOUTHEAST TEXAS AND OVER THE HILL COUNTRY HAVE THE POTENTIAL TO PRODUCE ANOTHER 2 TO 4 INCHES OF RAIN OVER PORTIONS OF SOUTHEAST TEXAS THAT ALREADY RECEIVED 2 TO 5 INCHES OF RAIN TODAY. TODAY'S HEAVY RAINS HAVE LEFT THE GROUND SATURATED IN MANY SPOTS...AND ANY ADDITIONAL RAINFALL MAY LEAD TO FLOODING. THE MAIN THREAT FOR HEAVY RAINS ACROSS THE FLASH FLOOD WATCH AREA WILL BE FROM AROUND MIDNIGHT THROUGH THE MORNING HOURS ON MONDAY MORNING. REMEMBER...A FLASH FLOOD WATCH MEANS FLOODING IS POSSIBLE...NOT IMMINENT. FLASH FLOOD WARNINGS OR URBAN AND SMALL STREAM FLOOD ADVISORIES MAY BE POSTED TONIGHT AND THROUGH MONDAY MORNING WHEN xAND IF FLOODING BECOMES MORE OF A CERTAINTY. STAY TUNED TO NOAA WEATHER RADIO OR OTHER RELIABLE WEATHER NEWS SOURCES FOR FURTHER UPDATES AND POSSIBLE WATCHES OR WARNINGS ON THIS DEVELOPING SEVERE WEATHER THREAT.
Special weather statement, Apr 2, 11:30 PM CDT, 3 hours 46 minutes before
TXZ163-164-176>179-195>200-210>214-226-227-235>238-031100- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 1130 PM CDT SUN APR 2 2000 ...TORNADO WATCH THAT WAS IN EFFECT UNTIL MIDNIGHT FOR THE EASTERN HALF OF SOUTHEAST TEXAS CANCELLED AT 1130 PM.... ...FLASH FLOOD WATCH REMAINS IN EFFECT FOR THE EASTERN PORTIONS OF SOUTHEAST TEXAS THROUGH MONDAY MORNING... THE TORNADO WATCH THAT WAS IN EFFECT FOR THE EASTERN PORTIONS OF SOUTHEAST TEXAS HAS BEEN CANCELLED. THE THREAT FOR TORNADOES TO DEVELOP IN THOSE COUNTIES THAT WERE IN THE TORNADO WATCH HAS DIMINISHED. ADDITIONAL SHOWERS AND THUNDERSTORMS CONTINUE TO DEVELOP AND INTENSIFY TO OUR WEST ACROSS PORTIONS OF THE HILL COUNTY...SOUTH CENTRAL TEXAS...AND SOUTH TEXAS. THIS ACTIVITY IS DEVELOPING IN RESPONSE TO A STRONG DISTURBANCE LOCATED TO THE SOUTHWEST OF TEXAS MOVING TOWARD THE STATE. A STRONG SUBTROPICAL JET STREAM WILL INTERACT WITH AN UNSTABLE AIRMASS ACROSS THE STATE TO PRODUCE ADDITIONAL SHOWERS AND THUNDERSTORMS FOR THE REMAINDER OF THE EVENING AND OVERNIGHT HOURS. SOME OF THESE STORMS MAY BECOME SEVERE AS THEY MOVE INTO THE SOUTHEAST TEXAS AREA...AND ADDITIONAL SEVERE THUNDERSTORM WATCHES MAY BE REQUIRED LATER TONIGHT. A FLASH FLOOD WATCH REMAINS IN EFFECT FOR THE FOLLOWING SOUTHEAST TEXAS COUNTIES THROUGH MONDAY MORNING...BRAZORIA...CHAMBERS...FORT BEND...GALVESTON...HARRIS...JACKSON...LIBERTY...MATAGORDA... MONTGOMERY...POLK...SAN JACINTO...AND WHARTON. SHOWERS AND THUNDERSTORMS THAT ARE DEVELOPING OVER PORTIONS OF SOUTHEAST TEXAS AND OVER THE HILL COUNTRY HAVE THE POTENTIAL TO PRODUCE ANOTHER 2 TO 4 INCHES OF RAIN OVER PORTIONS OF SOUTHEAST TEXAS THAT ALREADY RECEIVED 2 TO 5 INCHES OF RAIN TODAY. TODAY'S HEAVY RAINS HAVE LEFT THE GROUND SATURATED IN MANY SPOTS...AND ANY ADDITIONAL RAINFALL MAY LEAD TO FLOODING. THE MAIN THREAT FOR HEAVY RAINS ACROSS THE FLASH FLOOD WATCH AREA WILL BE FROM AROUND MIDNIGHT THROUGH THE MORNING HOURS ON MONDAY MORNING. REMEMBER...A FLASH FLOOD WATCH MEANS FLOODING IS POSSIBLE...NOT IMMINENT. FLASH FLOOD WARNINGS OR URBAN AND SMALL STREAM FLOOD ADVISORIES MAY BE POSTED TONIGHT AND THROUGH MONDAY MORNING WHEN AND IF FLOODING BECOMES MORE OF A CERTAINTY. STAY TUNED TO NOAA WEATHER RADIO OR OTHER RELIABLE WEATHER NEWS SOURCES FOR FURTHER UPDATES AND POSSIBLE WATCHES OR WARNINGS ON THIS DEVELOPING3 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 3, 3:45 AM CDT | Tornado Warning | HGX | Chambers | 45 min |
| Apr 3, 9:07 AM CDT | Severe Thunderstorm Warning | HGX | Chambers | 38 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.