Alert archive / Louisiana / Tornado Warnings in 2013

Tornado Warning 2, NWS Shreveport, LA

January 29, 20135 parishes in Louisiana

NWS Shreveport, LA issued this tornado warning at Jan 29, 2013, 8:04 PM CST for 5 parishes in Louisiana. It was in force for 41 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: Jan 29, 2013, 8:04 PM CST (02:04 UTC)
Expired: Jan 29, 2013, 8:45 PM CST
In force: 41 min
Issued by: NWS Shreveport, LA
Area: Storm-based polygon

Counties Caldwell Parish, LA, Grant Parish, LA, Jackson Parish, LA, LaSalle Parish, LA, Winn Parish, LA

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jan 29, 5:37 PM CST	Tornado Watch	SPC	8 hr

The nearest sounding before it

Shreveport, LA (KSHV), launched 00:00Z, 2.1 hours before the alert went out and 147 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 1413 J/kg
Mixed-layer CIN: -1 J/kg
Mixed-layer LCL: 679 m above ground
0-6 km bulk shear: 68 kt
0-1 km storm-relative helicity: 291 m²/s²
0-3 km storm-relative helicity: 335 m²/s²
Significant tornado parameter: 3.1
Supercell composite: 10.4

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

951 
WFUS54 KSHV 300204
TORSHV
LAC021-043-049-059-127-300245-
/O.NEW.KSHV.TO.W.0002.130130T0204Z-130130T0245Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE SHREVEPORT LA
804 PM CST TUE JAN 29 2013

THE NATIONAL WEATHER SERVICE IN SHREVEPORT HAS ISSUED A

* TORNADO WARNING FOR...
  CALDWELL PARISH IN NORTH CENTRAL LOUISIANA...
  THIS INCLUDES THE CITY OF COLUMBIA...
  NORTH CENTRAL GRANT PARISH IN NORTH CENTRAL LOUISIANA...
  SOUTHEASTERN JACKSON PARISH IN NORTH CENTRAL LOUISIANA...
  NORTHWESTERN LA SALLE PARISH IN NORTH CENTRAL LOUISIANA...
  EASTERN WINN PARISH IN NORTH CENTRAL LOUISIANA...

* UNTIL 845 PM CST

* AT 800 PM CST...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 28 MILES
  SOUTHWEST OF CLARKS...OR 12 MILES SOUTHEAST OF WINNFIELD...MOVING
  NORTHEAST AT 55 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  ROCHELLE...TULLOS...URANIA...SIKES...KELLY...VIXEN AND RIVERTON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WARNING MEANS THAT STRONG ROTATION HAS BEEN DETECTED IN THE
STORM. A TORNADO MAY ALREADY BE ON THE GROUND...OR IS EXPECTED TO
DEVELOP SHORTLY. IF YOU ARE IN THE PATH OF THIS DANGEROUS STORM...
MOVE INDOORS AND TO THE LOWEST LEVEL OF THE BUILDING. STAY AWAY FROM
WINDOWS. IF DRIVING...DO NOT SEEK SHELTER UNDER A HIGHWAY OVERPASS.

&&

LAT...LON 3173 9241 3175 9265 3225 9240 3224 9199
      3220 9197
TIME...MOT...LOC 0204Z 209DEG 46KT 3183 9250

$$

09

2 follow-up statements

957 
WWUS54 KSHV 300216
SVSSHV

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SHREVEPORT LA
816 PM CST TUE JAN 29 2013

LAC043-300226-
/O.CAN.KSHV.TO.W.0002.000000T0000Z-130130T0245Z/
GRANT LA-
816 PM CST TUE JAN 29 2013

...THE TORNADO WARNING FOR GRANT PARISH IS CANCELLED...

THE THUNDERSTORM HAS EXITED GRANT PARISH. THEREFORE...THE TORNADO 
WARNING FOR GRANT PARISH HAS BEEN CANCELLED.

LAT...LON 3188 9227 3189 9256 3225 9240 3224 9199
      3220 9197
TIME...MOT...LOC 0216Z 214DEG 48KT 3197 9238

$$

LAC021-049-059-127-300245-
/O.CON.KSHV.TO.W.0002.000000T0000Z-130130T0245Z/
LA SALLE LA-JACKSON LA-CALDWELL LA-WINN LA-
816 PM CST TUE JAN 29 2013

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 845 PM CST FOR WINN...
CALDWELL...JACKSON AND LA SALLE PARISHES...

AT 813 PM CST...USING DOPPLER RADAR...NATIONAL WEATHER SERVICE
METEOROLOGISTS CONTINUED TO DETECT A TORNADO.  THIS TORNADO WAS
LOCATED 14 MILES WEST OF KELLY...OR 14 MILES EAST OF WINNFIELD...
MOVING NORTHEAST AT 55 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
CLARKS...COLUMBIA...VIXEN AND RIVERTON

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WARNING MEANS THAT STRONG ROTATION HAS BEEN DETECTED IN THE
STORM. A TORNADO MAY ALREADY BE ON THE GROUND...OR IS EXPECTED TO
DEVELOP SHORTLY. IF YOU ARE IN THE PATH OF THIS DANGEROUS STORM...
MOVE INDOORS AND TO THE LOWEST LEVEL OF THE BUILDING. STAY AWAY FROM
WINDOWS. IF DRIVING...DO NOT SEEK SHELTER UNDER A HIGHWAY OVERPASS.

&&

LAT...LON 3188 9227 3189 9256 3225 9240 3224 9199
      3220 9197
TIME...MOT...LOC 0216Z 214DEG 48KT 3197 9238

$$

09

122 
WWUS54 KSHV 300231
SVSSHV

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SHREVEPORT LA
831 PM CST TUE JAN 29 2013

LAC059-300241-
/O.CAN.KSHV.TO.W.0002.000000T0000Z-130130T0245Z/
LA SALLE LA-
831 PM CST TUE JAN 29 2013

...THE TORNADO WARNING FOR LA SALLE PARISH IS CANCELLED...

THE THUNDERSTORM HAS EXITED LA SALLE PARISH. THEREFORE...THE TORNADO 
WARNING FOR LA SALLE PARISH HAS BEEN CANCELLED.

LAT...LON 3196 9219 3209 9238 3225 9236 3224 9205
      3222 9198 3220 9197
TIME...MOT...LOC 0231Z 225DEG 41KT 3210 9224

$$

LAC021-049-127-300245-
/O.CON.KSHV.TO.W.0002.000000T0000Z-130130T0245Z/
JACKSON LA-CALDWELL LA-WINN LA-
831 PM CST TUE JAN 29 2013

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 845 PM CST FOR WINN...
CALDWELL AND JACKSON PARISHES...

AT 827 PM CST...USING DOPPLER RADAR...NATIONAL WEATHER SERVICE
METEOROLOGISTS CONTINUED TO DETECT A TORNADO.  THIS TORNADO WAS
LOCATED 8 MILES NORTHWEST OF KELLY...OR 12 MILES WEST OF COLUMBIA...
MOVING NORTHEAST AT 45 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO VIXEN
AND RIVERTON

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WARNING MEANS THAT STRONG ROTATION HAS BEEN DETECTED IN THE
STORM. A TORNADO MAY ALREADY BE ON THE GROUND...OR IS EXPECTED TO
DEVELOP SHORTLY. IF YOU ARE IN THE PATH OF THIS DANGEROUS STORM...
MOVE INDOORS AND TO THE LOWEST LEVEL OF THE BUILDING. STAY AWAY FROM
WINDOWS. IF DRIVING...DO NOT SEEK SHELTER UNDER A HIGHWAY OVERPASS.

&&

LAT...LON 3196 9219 3209 9238 3225 9236 3224 9205
      3222 9198 3220 9197
TIME...MOT...LOC 0231Z 225DEG 41KT 3210 9224

$$

09

The office that day

Everything else NWS Shreveport, LA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jan 29, 7:31 PM CST	Severe Thunderstorm Warning	SHV	Bienville, Jackson, Lincoln, Union	29 min
Jan 29, 8:08 PM CST	Tornado Warning	SHV	Union	37 min
Jan 29, 8:15 PM CST	Severe Thunderstorm Warning	SHV	Bossier, Caddo, De Soto	60 min
Jan 29, 8:29 PM CST	Tornado Warning	SHV	Ouachita, Union	31 min
Jan 29, 8:38 PM CST	Tornado Warning	SHV	Caldwell, Ouachita	37 min
Jan 29, 9:07 PM CST	Tornado Warning	SHV	Caldwell, Jackson, Ouachita, Union	38 min
Jan 29, 9:09 PM CST	Severe Thunderstorm Warning	SHV	Bienville, Bossier, Caddo, Claiborne, De Soto, Red River and 2 more	51 min
Jan 29, 9:14 PM CST	Severe Thunderstorm Warning	SHV	Claiborne, Union, Webster	61 min
Jan 29, 9:31 PM CST	Severe Thunderstorm Warning	SHV	Caldwell, Grant, LaSalle, Winn	44 min
Jan 29, 9:52 PM CST	Severe Thunderstorm Warning	SHV	Sabine	53 min
Jan 29, 10:01 PM CST	Severe Thunderstorm Warning	SHV	Bienville, Claiborne, De Soto, Jackson, Lincoln, Natchitoches and 3 more	59 min
Jan 29, 10:08 PM CST	Severe Thunderstorm Warning	SHV	Caldwell, Ouachita	22 min
Jan 29, 10:42 PM CST	Severe Thunderstorm Warning	SHV	Grant, Natchitoches, Sabine, Winn	63 min
Jan 29, 10:59 PM CST	Severe Thunderstorm Warning	SHV	Caldwell, Jackson, Ouachita, Union, Winn	61 min
Jan 29, 11:42 PM CST	Severe Thunderstorm Warning	SHV	Grant, LaSalle	63 min
Jan 29, 11:57 PM CST	Severe Thunderstorm Warning	SHV	Caldwell	33 min
Jan 30, 12:42 AM CST	Severe Thunderstorm Warning	SHV	LaSalle	48 min
Jan 30, 1:28 AM CST	Lake Wind Advisory	SHV	Bienville, Bossier, Caddo, Caldwell, Claiborne, De Soto and 11 more	17 hr

Nearby

Tornado Warnings in Louisiana, 2013 Every tornado warning in 2013 Tornadoes in 2013

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.