Alert archive / Texas / Tornado Warnings in 2001
Tornado Warning 16, NWS Houston/Galveston, TX
NWS Houston/Galveston, TX issued this tornado warning at Aug 30, 2001, 8:25 PM CDT for Chambers County, Texas. It was in force for 35 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
- Aug 30, 2001, 8:25 PM CDT (01:25 UTC)
- Expired
- Aug 30, 2001, 9:00 PM CDT
- In force
- 35 min
- Issued by
- NWS Houston/Galveston, TX
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Chambers County, TX
The radar
The Houston radar (KHGX), 53 km from the middle of the area, began a volume at 01:26 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.
The nearest sounding before it
Lake Charles Mun, LA (KLCH), launched 00:00Z, 1.4 hours before the alert went out and 142 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
- 492 J/kg
- Mixed-layer CIN
- -40 J/kg
- Mixed-layer LCL
- 867 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- 85 m²/s²
- 0-3 km storm-relative helicity
- 247 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.6
The text
As transmitted, in the capitals the NWS used until 2016.
911 WFUS54 KHGX 310124 TORHOU TXC071-310200- BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 825 PM CDT THU AUG 30 2001 THE NATIONAL WEATHER SERVICE HAS ISSUED A * TORNADO WARNING FOR... CHAMBERS COUNTY IN SOUTHEAST TEXAS * UNTIL 900 PM CDT * AT 821 PM CDT...DOPPLER RADAR INDICATED A THUNDERSTORM CAPABLE OF PRODUCING A TORNADO JUST NORTH OF GILCHRIST...MOVING NORTH AT 30 MPH. * LOCATIONS IN THE PATH OF THE TORNADO INCLUDE... RURAL CHAMBERS COUNTY BETWEEN ANAHUAC AND WINNIE TORNADOES AT NIGHT ARE ESPECIALLY DANGEROUS. DO NOT WAIT UNTIL YOU SEE OR HEAR THE TORNADO - TAKE COVER NOW 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 2955 9470 2951 9449 2988 9438 2988 9462
What forecasters said that day
The local office's own words before this tornado 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 tornado warning went out at Aug 30, 2:31 PM CDT, 5 hours 54 minutes earlier.
Area forecast discussion, Aug 30, 2:31 PM CDT, 5 hours 54 minutes before
SOUTHEAST TEXAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 230 PM CDT THU AUG 29 2001 HEAVIEST RAINFALL THIS MORNING WAS OVER CHAMBERS COUNTY INCLUDING MUCH OF BOLIVAR PENINSULA. ACTIVE AREA OF CONVECTION EARLY THIS AFTERNOON JUST WEST OF CWFA (OR JUST E OF I-35). EXPECT PWATS TO REMAIN AT OR ABOVE 2 INCHES THROUGH SUNDAY. UPPER TROUGH TO PERSIST OVER TX NEXT SEVERAL DAYS. DEEP GULF MOISTURE TO REMAIN IN PLACE AIDED BY LOW LEVEL JET. UPPER LEVEL DIFFLUENCE GETTING WEAKER AND SHIFTING SOUTHWARD BY FRIDAY. HOWEVER...DO NOT SEE ANY BREAK AND EXPECT HIGH POPS W/HEAVY RAIN (ON AND OFF) TO CONTINUE. GROUND OBVIOUSLY ALREADY SATURATED LAST FEW DAYS AND ADDITIONAL RAINFALL WILL EASILY RUNOFF. SATELLITE LOOPS SHOWS CONVECTION FIRING UP JUST S OF RIO GRANDE AND ALSO BETWEEN CRP AND COT. WILL EXTEND FFA INTO TONIGHT. WILL BE COMING OUT W/FFAHGX SHORTLY. AVN CONTINUE TO SHOW UPPER TROUGHING THROUGH TUESDAY AND MRF INDICATE TROUGH BEING KICKED OFF TO THE NE WED/THU AS STRONG UPPER TROUGH APPROACH THE WEST COAST. IF SO...BREAK MAY BE COMING THEN. WE SHALL SEE. CANADIAN HIGH MOVING INTO THE GREAT LAKES THIS WEEKEND W/TAIL END OF ASSSOCIATED FRONT POSSIBLY MOVING TO NE TX SATURDAY AND MAYBE SAGGING TO OUR N ZONES SUNDAY (?). CONFIDENCE IS NOT HIGH ON THIS. WIND/SEAS PICKED UP SOMEWHAT TO NEAR SCEC CRITERIA TODAY AND EXPECT THIS TREND TO CONTINUE TONIGHT. THANKS TO KLCH FOR THE COORDINATION. 37/46/48 .HGX...FFA ALL CWA TONIGHT. CLL TT 073/084 073/088 073 886 IAH TT 073/083 074/086 074 886 GLS TT 077/083 078/085 078 +97
The office that day
Everything else NWS Houston/Galveston, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 30, 7:05 PM CDT | Tornado Warning | HGX | Liberty | 25 min |
| Aug 30, 7:32 PM CDT | Tornado Warning | HGX | Chambers, Galveston | 43 min |
| Aug 30, 7:49 PM CDT | Tornado Warning | HGX | Brazoria, Galveston | 41 min |
| Aug 30, 8:20 PM CDT | Flash Flood Warning | HGX | Brazoria, Fort Bend, Galveston, Harris | 6 hr |
| Aug 30, 8:45 PM CDT | Tornado Warning | HGX | Brazoria | 45 min |
| Aug 30, 9:07 PM CDT | Tornado Warning | HGX | Chambers | 38 min |
| Aug 30, 9:35 PM CDT | Tornado Warning | HGX | Chambers | 40 min |
| Aug 30, 10:55 PM CDT | Flash Flood Warning | HGX | Jackson, Wharton | 6 hr |
| Aug 31, 1:05 AM CDT | Flash Flood Warning | HGX | Brazoria, Fort Bend, Galveston, Harris | 6 hr |
| Aug 31, 3:45 AM CDT | Flash Flood Warning | HGX | Jackson, Wharton | 6 hr |
| Aug 31, 8:30 AM CDT | Flash Flood Warning | HGX | Colorado, Jackson, Matagorda, Wharton | 3 hr |
| Aug 31, 9:55 AM CDT | Flash Flood Warning | HGX | Brazoria, Fort Bend | 3 hr |
| Aug 31, 11:27 AM CDT | Flash Flood Warning | HGX | Jackson, Matagorda, Wharton | 3 hr |
| Aug 31, 1:00 PM CDT | Flash Flood Warning | HGX | Brazoria, Fort Bend | 3 hr |
| Aug 31, 1:52 PM CDT | Tornado Warning | HGX | Chambers | 23 min |
| Aug 31, 2:28 PM CDT | Flash Flood Warning | HGX | Jackson, Wharton | 92 min |
| Aug 31, 3:55 PM CDT | Flash Flood Warning | HGX | Brazoria, Fort Bend, Jackson, Wharton | 2 hr |
| Aug 31, 5:58 PM CDT | Flash Flood Warning | HGX | Brazoria, Fort Bend, Jackson, Wharton | 3 hr |
Nearby
Tornado Warnings in Texas, 2001Every tornado warning in 2001Tornadoes 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.