Alert archive / Texas / Tornado Warnings in 2012
Tornado Warning 5, NWS Shreveport, LA
NWS Shreveport, LA issued this tornado warning at Mar 11, 2012, 2:12 PM CDT for Sabine County, San Augustine County, Shelby County, Texas. It was in force for 48 min. 1 report came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Mar 11, 2012, 2:12 PM CDT (19:12 UTC)
- Expired
- Mar 11, 2012, 3:00 PM CDT
- In force
- 48 min
- Issued by
- NWS Shreveport, LA
- Area
- Storm-based polygon
Counties Sabine County, TX, San Augustine County, TX, Shelby County, TX
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Mar 11, 2:20 PM CDT | TORNADO | 3 Nw San Augustine, TX | AN EF0 TORNADO TOUCHED DOWN 5 MILES NORTHWEST OF SAN AUGUSTINE AND TRACKED NORTH NORTHEAST BEFORE LIFTING JUST SOUTH OF THE SAN AUGUSTINE/SHELBY COUNTY TEXAS LINE. THE INITIAL TOUCHDOWN WAS JUST EAST OF HWY. 96 AND WEST OF FM 3230 WHERE A LARGE TREE WAS UPROOT |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Mar 11, 11:55 AM CDT | Tornado Watch | SPC | 7 hr |
The nearest sounding before it
Shreveport, LA (KSHV), launched 12:00Z, 7.2 hours before the alert went out and 106 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 419 m above ground
- 0-6 km bulk shear
- 50 kt
- 0-1 km storm-relative helicity
- 328 m²/s²
- 0-3 km storm-relative helicity
- 390 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.0
The text
As transmitted, in the capitals the NWS used until 2016.
161
WFUS54 KSHV 111912
TORSHV
TXC403-405-419-112000-
/O.NEW.KSHV.TO.W.0005.120311T1912Z-120311T2000Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE SHREVEPORT LA
212 PM CDT SUN MAR 11 2012
THE NATIONAL WEATHER SERVICE IN SHREVEPORT HAS ISSUED A
* TORNADO WARNING FOR...
NORTHERN SABINE COUNTY IN EASTERN TEXAS...
NORTHERN SAN AUGUSTINE COUNTY IN EASTERN TEXAS...
SOUTHEASTERN SHELBY COUNTY IN EASTERN TEXAS...
* UNTIL 300 PM CDT
* AT 212 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO JUST NORTHEAST OF
MACUNE...OR ABOUT 5 MILES SOUTH OF SAN AUGUSTINE...MOVING NORTHEAST
AT 30 MPH.
* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO SAN
AUGUSTINE...BLAND LAKE...NEUVILLE...ROSEVINE...GENEVA AND
PATROON...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
STURDY SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE NEAREST
DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.
HEAVY RAINFALL MAY OBSCURE THIS TORNADO. TAKE COVER NOW! IF YOU WAIT
TO SEE OR HEAR IT COMING...IT MAY BE TOO LATE TO GET TO A SAFE PLACE.
&&
LAT...LON 3130 9420 3165 9432 3180 9385 3164 9382
3162 9382 3160 9384 3157 9382 3155 9382
3152 9377 3141 9372
TIME...MOT...LOC 1911Z 244DEG 25KT 3146 9411
$$
151 follow-up statement
754
WWUS54 KSHV 111934
SVSSHV
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SHREVEPORT LA
234 PM CDT SUN MAR 11 2012
TXC403-405-419-112000-
/O.CON.KSHV.TO.W.0005.000000T0000Z-120311T2000Z/
SABINE TX-SAN AUGUSTINE TX-SHELBY TX-
234 PM CDT SUN MAR 11 2012
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 300 PM CDT FOR SHELBY...
SAN AUGUSTINE AND SABINE COUNTIES...
AT 234 PM CDT...WEATHER SERVICE METEOROLOGISTS CONTINUED TO DETECT A
SEVERE THUNDERSTORM WITH STRONG ROTATION. THIS TORNADO WAS LOCATED
JUST NORTHEAST OF SAN AUGUSTINE...OR 20 MILES SOUTHEAST OF CENTER...MOVING
NORTHEAST AT 30 MPH.
OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
GENEVA...HURSTOWN...PATROON...SEXTON...JORDANS STORE AND HUXLEY
PRECAUTIONARY/PREPAREDNESS ACTIONS...
HEAVY RAINFALL MAY OBSCURE THIS TORNADO. TAKE COVER NOW! IF YOU WAIT
TO SEE OR HEAR IT COMING...IT MAY BE TOO LATE TO GET TO A SAFE PLACE.
THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN
INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO
COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS.
&&
LAT...LON 3133 9406 3169 9421 3180 9385 3164 9382
3162 9382 3160 9384 3157 9382 3155 9382
3152 9377 3141 9372
TIME...MOT...LOC 1934Z 240DEG 25KT 3155 9401
$$
15The office that day
Everything else NWS Shreveport, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 11, 8:38 AM CDT | River Flood Warning | SHV | Smith, Wood | 6 days |
| Mar 11, 10:53 AM CDT | Areal Flood Warning | SHV | Cherokee, Smith | 3 hr |
| Mar 11, 12:56 PM CDT | Areal Flood Warning | SHV | Angelina, Nacogdoches | 3 hr |
| Mar 11, 1:12 PM CDT | Areal Flood Warning | SHV | Harrison, Panola, Rusk | 3 hr |
| Mar 11, 3:01 PM CDT | Severe Thunderstorm Warning | SHV | Sabine, Shelby | 44 min |
| Mar 11, 3:55 PM CDT | Tornado Warning | SHV | Sabine | 50 min |
| Mar 11, 4:56 PM CDT | Areal Flood Warning | SHV | Sabine, San Augustine | 3 hr |
Nearby
Tornado Warnings in Texas, 2012Every tornado warning in 2012Tornadoes in 2012
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive.