Alert archive / Texas / Tornado Warnings in 2001
Tornado Warning 31, NWS Houston/Galveston, TX
NWS Houston/Galveston, TX issued this tornado warning at Oct 13, 2001, 3:24 AM CDT for Liberty County, Texas. It was in force for 51 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
- Oct 13, 2001, 3:24 AM CDT (08:24 UTC)
- Expired
- Oct 13, 2001, 4:15 AM CDT
- In force
- 51 min
- Issued by
- NWS Houston/Galveston, TX
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Liberty County, TX
The radar
The Houston radar (KHGX), 93 km from the middle of the area, began a volume at 08:27 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 |
|---|---|---|---|
| Oct 13, 3:44 AM CDT | Thunderstorm Wind | Romayor, TX | Sheriff's office reported a tree fell on a car in Romayor. |
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.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Oct 13, 12:30 AM CDT | Tornado Watch | SPC | 5 hr |
The nearest sounding before it
Lake Charles Mun, LA (KLCH), launched 00:00Z, 8.4 hours before the alert went out and 173 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
- 2537 J/kg
- Mixed-layer CIN
- -1 J/kg
- Mixed-layer LCL
- 640 m above ground
- 0-6 km bulk shear
- 37 kt
- 0-1 km storm-relative helicity
- 70 m²/s²
- 0-3 km storm-relative helicity
- 102 m²/s²
- Significant tornado parameter
- 0.9
- Supercell composite
- 6.4
The text
As transmitted, in the capitals the NWS used until 2016.
438
WFUS54 KHGX 130824
TORHOU
TXC291-130915-
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
324 AM CDT SAT OCT 13 2001
THE NATIONAL WEATHER SERVICE HAS ISSUED A
* TORNADO WARNING FOR...
LIBERTY COUNTY IN SOUTHEAST TEXAS
* UNTIL 415 AM CDT
* AT 317 AM CDT...DOPPLER RADAR INDICATED A THUNDERSTORM CAPABLE OF
PRODUCING A TORNADO 7 MILES SOUTH OF PLUM GROVE...MOVING NORTHEAST
AT 30 MPH.
* LOCATIONS IN THE PATH OF THE TORNADO INCLUDE...
PLUM GROVE
CLEVELAND...NORTH CLEVELAND
MOVE TO A SMALL INTERIOR ROOM ON THE LOWEST FLOOR. ABANDON YOUR CAR
OR MOBILE HOME FOR A STRONG SHELTER 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 3023 9512 3003 9505 3030 9475 3049 9476
3045 9494 3037 9516What 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 Oct 13, 2:45 AM CDT, 39 minutes earlier.
Area forecast discussion, Oct 13, 2:45 AM CDT, 39 minutes before
SOUTHEAST TEXAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
245 AM CDT SAT OCT 13 2001
SVR WX CURRENTLY ONGOING OVR THE CWA. WILL CLEAR THE NW ZONES FROM
TOR AND FFA WITH UPDATE. FNT CURRENTLY CUTTING A LN OVR THE NW QUAD
OF THE CWA. ITS E OF CLL AND BRENHAM. ETA HAS THE BOUNDARY CLRG THE
CWA BY NOONTIME. SHRA CONTS A BIT BEHIND FNT...SO WILL HAVE CAT POPS
EVERYWHERE FIRST PERIOD. WILL INDC SOME CLRG WRN ZONES THIS AFTN.
MODELS SHOW A DECR OF SHEAR AND CAPES NEXT 6-12 HRS. EVENT MAY END
UP WINDING DOWN TO A HVY PRECIP TYPE SITU.
REST OF FCST LEFT AS IS. LOOKS TRANQUIL FOR THE REST OF THE WEEK.
MOS TEMPS HAVE JUMPED FROM PREV RUNS FOR SUNDAY. GIVEN THICKNESSES
...THINK THEY ARE TOO HIGH.
.HGX...FFA ALL SE HALF THIS MORNING.
SCA BAYS AND 0-60NM GULF WATERS.
46/35/47/42/DB
PRELIMS...
CLL WU 073/050 080/050 081 800
IAH TU 078/050 081/050 082 +00
GLS TU 080/060 078/064 080 +00In the hours before
Special weather statement, Oct 12, 9:30 PM CDT, 5 hours 54 minutes before
TXZ195>197-130800- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 930 PM CDT FRI OCT 12 2001 ...TORNADO WATCH IN EFFECT UNTIL 300 AM FOR BRAZOS...BURLESON...AND WASHINGTON COUNTIES... THUNDERSTORMS MOVING INTO SOUTH CENTRAL TEXAS ARE EXPECTED TO SPREAD EASTWARD AND SHOULD APPROACH BRAZOS...BURLESON...AND WASHINGTON COUNTIES AROUND MIDNIGHT. THE HIGHLY UNSTABLE AND VERY MOIST AIR MASS WILL BE CONDUCIVE FOR THE DEVELOPMENT OF SEVERE STORMS AND A FEW TORNADOES. REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR TORNADOES AND SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE WARNINGS. STAY TUNED TO NOAA WEATHER RADIO OR OTHER WEATHER NEWS SOURCES FOR THE LATEST UPDATES ON THIS SEVERE WEATHER SITUATION.
Special weather statement, Oct 13, 12:20 AM CDT, 3 hours 4 minutes before
TXZ163-164-176>179-195>200-210>214-226-227-238-131408- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 1220 AM CDT SAT OCT 13 2001 THE STORM PREDICTION CENTER HAS ISSUED A TORNADO WATCH FOR PORTIONS OF EASTERN TEXAS AND THE COASTAL WATERS UNTIL 500 AM CDT SATURDAY. THIS INCLUDES BRAZORIA...CHAMBERS...COLORADO...FORT BEND...GALVESTON GRIMES...HARRIS...HOUSTON...LIBERTY...MADISON...MONTGOMERY...POLK SAN JACINTO...WALKER...WALLER...WASHINGTON...AND WHARTON COUNTIES OF SOUTHEAST TEXAS. THE TORNADO WATCH AREA IS ALONG AND 80 STATUTE MILES EAST AND WEST OF A LINE FROM 45 MILES SOUTHWEST OF HOUSTON TEXAS TO 65 MILES NORTHEAST OF LUFKIN TEXAS. REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR TORNADOES AND SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE WARNINGS. STAY TUNED TO NOAA WEATHER RADIO OR OTHER WEATHER NEWS SOURCES FOR THE LATEST UPDATES ON THIS SEVERE WEATHER SITUATION.
The office that day
Everything else NWS Houston/Galveston, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 12, 7:53 PM CDT | Severe Thunderstorm Warning | HGX | Polk, San Jacinto | 52 min |
| Oct 13, 12:18 AM CDT | Severe Thunderstorm Warning | HGX | Burleson | 57 min |
| Oct 13, 12:36 AM CDT | Severe Thunderstorm Warning | HGX | Brazos, Washington | 54 min |
| Oct 13, 1:04 AM CDT | Severe Thunderstorm Warning | HGX | Grimes, Madison | 56 min |
| Oct 13, 1:13 AM CDT | Severe Thunderstorm Warning | HGX | Austin | 62 min |
| Oct 13, 1:23 AM CDT | Severe Thunderstorm Warning | HGX | Harris, Waller | 67 min |
| Oct 13, 1:50 AM CDT | Severe Thunderstorm Warning | HGX | Montgomery, Walker | 55 min |
| Oct 13, 1:55 AM CDT | Severe Thunderstorm Warning | HGX | Houston | 50 min |
| Oct 13, 2:02 AM CDT | Tornado Warning | HGX | Houston | 43 min |
| Oct 13, 2:12 AM CDT | Severe Thunderstorm Warning | HGX | Polk, San Jacinto, Trinity | 63 min |
| Oct 13, 2:20 AM CDT | Severe Thunderstorm Warning | HGX | Austin | 25 min |
| Oct 13, 2:27 AM CDT | Severe Thunderstorm Warning | HGX | Harris | 63 min |
| Oct 13, 2:34 AM CDT | Tornado Warning | HGX | Polk | 41 min |
| Oct 13, 2:47 AM CDT | Severe Thunderstorm Warning | HGX | Montgomery | 43 min |
| Oct 13, 2:58 AM CDT | Tornado Warning | HGX | Trinity | 47 min |
| Oct 13, 3:14 AM CDT | Severe Thunderstorm Warning | HGX | Polk | 61 min |
| Oct 13, 4:02 AM CDT | Special Marine Warning | HGX | 88 min | |
| Oct 13, 4:16 AM CDT | Severe Thunderstorm Warning | HGX | Chambers, Liberty | 44 min |
| Oct 13, 5:20 AM CDT | Special Marine Warning | HGX | 115 min | |
| Oct 13, 5:20 AM CDT | Special Marine Warning | HGX | 115 min |
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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.