Alert archive / Texas / Severe Thunderstorm Warnings in 2001
Severe Thunderstorm Warning 125, NWS Houston/Galveston, TX
NWS Houston/Galveston, TX issued this severe thunderstorm warning at Sep 20, 2001, 6:51 PM CDT for Fort Bend County, Harris County, Texas. It was in force for 39 min. 3 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
- Sep 20, 2001, 6:51 PM CDT (23:51 UTC)
- Expired
- Sep 20, 2001, 7:30 PM CDT
- In force
- 39 min
- Issued by
- NWS Houston/Galveston, TX
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
Counties Fort Bend County, TX, Harris County, TX
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Sep 20, 7:15 PM CDT | Thunderstorm Wind | Sugarland, TX | Large tree branches down in the Mission Bend area. |
| Sep 20, 7:15 PM CDT | Thunderstorm Wind | Fresno, TX | Power lines down near FM 2234 and South Post Oak. |
| Sep 20, 7:20 PM CDT | Thunderstorm Wind | Houston, TX | Light pole down at Pine Forest and Clay Road in west Houston. Power lines down near Gessner and Clay Road and near the Galleria. |
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 12:00Z, 11.9 hours before the alert went out and 234 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
- 3591 J/kg
- Mixed-layer CIN
- -4 J/kg
- Mixed-layer LCL
- 615 m above ground
- 0-6 km bulk shear
- 10 kt
- 0-1 km storm-relative helicity
- -2 m²/s²
- 0-3 km storm-relative helicity
- 20 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 Sep 20, 2:15 PM CDT, 4 hours 36 minutes earlier.
Area forecast discussion, Sep 20, 2:15 PM CDT, 4 hours 36 minutes before
SOUTHEAST TEXAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 215 PM CDT THU SEP 20 2001 EAST-WEST ORIENTED LINE OF STORMS FROM FWD AREA TO SHV AREA SAGGING SOUTHWARD. WEAKENING TREND HAS BEEN NOTED IN THE LAST SEVERAL RADAR SCANS. BIG SHORT TERM PROBLEM FOR OUR AREA IS THE DIFFICULTY IN TIMING THE SHORTWAVES (TONIGHT THROUGH THE WEEKEND) THAT WILL BE STARTING TO CARVE OUT A CENTRAL TO EASTERN U.S. TROF. WITH HIGH PRECIP WATER VALUES...LOW LIS...AND HIGH TOTAL TOTALS AND CAPES... WILL CALL FOR SLIGHTLY HIGHER POPS STARTING TOMORROW AND ON THROUGH THE WEEKEND. PRESENT THINKING IS THAT AREAS ALONG AND WEST OF HIGHWAY 59 (ALONG AND WEST OF A LIVINGSTON TO HOUSTON TO EDNA LINE) HAVE THE GREATEST RISK FOR SHOWERS AND THUNDERSTORMS DURING THE NEXT 3 DAYS. DEVELOPING EASTERN U.S. TROF AND WESTERN U.S RIDGE WILL HELP SWEEP A COLD FRONT THROUGH SOUTHEAST TEXAS LATE SUNDAY NIGHT AND ON INTO EARLY MONDAY MORNING. AT THIS TIME...IT APPEARS THAT SIGNIFICANT DRYING WILL DEVELOP LATE ON MONDAY AS THE FRONT MAKES IT WELL OFFSHORE (AVN PLUNGES IAHS PRECIP WATER VALUES TO UNDER .5 INCHES BY TUESDAY MORNING). NEXT WEEK LOOKS TO BE COOL AT NIGHT (INLAND LOWS FINALLY DROPPING INTO THE 50S) AND MILD DURING THE DAY (HIGHS IN THE UPPER 70S TO LOWER 80S). HAVE LEANED A LITTLE CLOSER TO THE WARMER OVERNIGHT LOWS OF THE MEX. ALSO...EXPECT BREEZY CONDITIONS ALONG THE COAST ON MONDAY AFTER FRONTAL PASSAGE. 42/47/DO .HGX...NONE. PRELIMS... CLL BE 074/094 072/088 072 344 IAH BE 074/093 073/088 073 233 GLS BE 080/089 080/087 079 232
The office that day
Everything else NWS Houston/Galveston, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 20, 5:07 PM CDT | Severe Thunderstorm Warning | HGX | Wharton | 38 min |
| Sep 20, 5:49 PM CDT | Severe Thunderstorm Warning | HGX | Wharton | 26 min |
Nearby
Severe Thunderstorm Warnings in Texas, 2001Every severe thunderstorm warning in 2001
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.