Alert archive / Texas / Tornado Warnings in 2011
Tornado Warning 20, NWS Houston/Galveston, TX
NWS Houston/Galveston, TX issued this tornado warning at Nov 8, 2011, 2:43 PM CST for Liberty County, Texas. It was in force for 47 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Nov 8, 2011, 2:43 PM CST (20:43 UTC)
- Expired
- Nov 8, 2011, 3:30 PM CST
- In force
- 47 min
- Issued by
- NWS Houston/Galveston, TX
- Area
- Storm-based polygon
County Liberty County, TX
The radar
The Houston radar (KHGX), 86 km from the middle of the area, began a volume at 20:45 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Nov 8, 1:59 PM CST | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Lake Charles Mun, LA (KLCH), launched 12:00Z, 8.7 hours before the alert went out and 155 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
- 403 J/kg
- Mixed-layer CIN
- -94 J/kg
- Mixed-layer LCL
- 438 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- 139 m²/s²
- 0-3 km storm-relative helicity
- 201 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.2
The text
As transmitted, in the capitals the NWS used until 2016.
101
WFUS54 KHGX 082043
TORHGX
TXC291-082130-
/O.NEW.KHGX.TO.W.0020.111108T2043Z-111108T2130Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
243 PM CST TUE NOV 8 2011
THE NATIONAL WEATHER SERVICE IN LEAGUE CITY HAS ISSUED A
* TORNADO WARNING FOR...
NORTHERN LIBERTY COUNTY IN SOUTHEAST TEXAS...
* UNTIL 330 PM CST
* AT 240 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS A
TORNADO WAS LOCATED NEAR DAYTON LAKES...MOVING EAST NORTHEAST AT
25 MPH.
* LOCATIONS IN THE TORNADO WARNING INCLUDE BUT ARE NOT LIMITED TO
MOSS HILL...KENEFICK...HARDIN AND DAISETTA.
IN ADDITION TO THE TORNADO...DAMAGING WINDS OF 60 MPH AND QUARTER
SIZED HAIL ARE LIKELY WITH THIS LARGE SEVERE THUNDERSTORM.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THE SAFEST PLACE TO BE DURING A TORNADO IS IN THE INTERIOR HALLWAY OR
A ROOM SUCH AS A CLOSET ON THE LOWEST LEVEL OF A STURDY BUILDING. USE
BLANKETS OR PILLOWS TO COVER YOUR BODY AND ALWAYS STAY AWAY FROM
WINDOWS.
IF YOU ARE INSIDE A MOBILE HOME OR VEHICLE...EVACUATE THEM
IMMEDIATELY AND SEEK SHELTER INSIDE A STURDY BUILDING. AS A LAST
RESORT...SEEK SHELTER IN A CULVERT...DITCH OR LOW SPOT AND COVER YOUR
HEAD WITH YOUR HANDS.
&&
PLEASE REPORT SEVERE WEATHER TO THE COUNTY SHERIFF...LOCAL POLICE...
OR DEPARTMENT OF PUBLIC SAFETY AND ASK THEM TO RELAY YOUR REPORT TO
THE NATIONAL WEATHER SERVICE.
LAT...LON 3009 9488 3018 9494 3028 9497 3046 9472
3030 9466 3009 9460
TIME...MOT...LOC 2043Z 235DEG 19KT 3023 9484
$$2 follow-up statements
651
WWUS54 KHGX 082109
SVSHGX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
309 PM CST TUE NOV 8 2011
TXC291-082130-
/O.CON.KHGX.TO.W.0020.000000T0000Z-111108T2130Z/
LIBERTY TX-
309 PM CST TUE NOV 8 2011
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 330 PM CST FOR EASTERN
LIBERTY COUNTY...
AT 306 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO. THIS TORNADO WAS LOCATED NEAR MOSS HILL...OR 10
MILES SOUTHWEST OF THICKET...MOVING NORTHEAST AT 25 MPH.
THE TORNADO WILL OTHERWISE REMAIN OVER MAINLY RURAL AREAS OF THE
INDICATED COUNTY.
IN ADDITION TO THE TORNADO...WIND GUSTS TO 60 MPH AND QUARTER SIZED
HAIL ARE LIKELY WITH THIS STORM.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THE SAFEST PLACE TO BE DURING A TORNADO IS IN THE INTERIOR HALLWAY OR
A ROOM SUCH AS A CLOSET ON THE LOWEST LEVEL OF A STURDY BUILDING. USE
BLANKETS OR PILLOWS TO COVER YOUR BODY AND ALWAYS STAY AWAY FROM
WINDOWS.
IF YOU ARE INSIDE A MOBILE HOME OR VEHICLE...EVACUATE THEM
IMMEDIATELY AND SEEK SHELTER INSIDE A STURDY BUILDING. AS A LAST
RESORT...SEEK SHELTER IN A CULVERT...DITCH OR LOW SPOT AND COVER YOUR
HEAD WITH YOUR HANDS.
PLEASE REPORT SEVERE WEATHER TO THE COUNTY SHERIFF...LOCAL POLICE...
OR DEPARTMENT OF PUBLIC SAFETY AND ASK THEM TO RELAY YOUR REPORT TO
THE NATIONAL WEATHER SERVICE.
LAT...LON 3016 9462 3016 9476 3023 9482 3035 9488
3046 9472 3030 9466
TIME...MOT...LOC 2109Z 234DEG 18KT 3029 9472
$$125
WWUS54 KHGX 082132
SVSHGX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
332 PM CST TUE NOV 8 2011
TXC291-082142-
/O.EXP.KHGX.TO.W.0020.000000T0000Z-111108T2130Z/
LIBERTY TX-
332 PM CST TUE NOV 8 2011
...THE TORNADO WARNING FOR LIBERTY COUNTY HAS EXPIRED...
THE STORM THAT PROMPTED THE WARNING HAS WEAKED AND IS NO LONGER
EXPECTED TO PRODUCE SEVERE WEATHER.
PLEASE REPORT SEVERE WEATHER TO THE COUNTY SHERIFF...LOCAL POLICE...
OR DEPARTMENT OF PUBLIC SAFETY AND ASK THEM TO RELAY YOUR REPORT TO
THE NATIONAL WEATHER SERVICE.
LAT...LON 3016 9462 3016 9476 3023 9482 3035 9488
3046 9472 3030 9466
TIME...MOT...LOC 2109Z 234DEG 18KT 3029 9472
$$The office that day
Everything else NWS Houston/Galveston, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 8, 1:21 PM CST | Severe Thunderstorm Warning | HGX | Harris, Liberty, Montgomery | 39 min |
| Nov 8, 1:22 PM CST | Tornado Warning | HGX | Harris, Liberty, Montgomery | 38 min |
| Nov 8, 2:01 PM CST | Tornado Warning | HGX | Harris, Liberty | 44 min |
| Nov 8, 3:42 PM CST | Special Weather Statement | HGX | Montgomery | 63 min |
| Nov 8, 3:43 PM CST | Special Weather Statement | HGX | Trinity | 62 min |
| Nov 8, 4:20 PM CST | Special Weather Statement | HGX | Liberty | 55 min |
| Nov 8, 4:29 PM CST | Tornado Warning | HGX | Liberty, Montgomery, San Jacinto | 46 min |
| Nov 8, 4:32 PM CST | Small Craft Advisory | HGX | 46 hr | |
| Nov 8, 4:35 PM CST | Tornado Warning | HGX | Liberty | 40 min |
| Nov 8, 5:11 PM CST | Tornado Warning | HGX | Liberty, Montgomery | 64 min |
| Nov 8, 5:26 PM CST | Special Weather Statement | HGX | Chambers | 49 min |
| Nov 8, 5:58 PM CST | Special Marine Warning | HGX | 92 min |
Nearby
Tornado Warnings in Texas, 2011Every tornado warning in 2011Tornadoes in 2011
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.