Alert archive / Louisiana / Tornado Warnings in 2017

Tornado Warning 36, NWS Jackson, MS

April 2, 2017Catahoula Parish, Franklin Parish, Louisiana

NWS Jackson, MS issued this tornado warning at Apr 2, 2017, 4:28 PM CDT for Catahoula Parish, Franklin Parish, Louisiana. It was in force for 62 min. 2 reports 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: Apr 2, 2017, 4:28 PM CDT (21:28 UTC)
Expired: Apr 2, 2017, 5:30 PM CDT
In force: 62 min
Issued by: NWS Jackson, MS
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

Counties Catahoula Parish, LA, Franklin Parish, LA

The radar

The Ft Polk radar (KPOE), 132 km from the middle of the area, began a volume at 21:30 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
Apr 2, 4:28 PM CDT	TORNADO	11 W Harrisonburg, LA	* 1 INJ * EF2 TORNADO. MAXIMUM WINDS 115 MPH. NUMEROUS TREES DOWNED AND SNAPPED ALONG THE PATH. CAUSED ROOF AND STRUCTURAL DAMAGE TO A CHURCH, SOME HOMES AND BUILDINGS ALONG THE PATH. FLIPPED A MOBILE HOME, WHERE THE ONE INJURY OCCURRED. THE TORNADO HAD A
Apr 2, 4:30 PM CDT	TORNADO	11 W Harrisonburg, LA	POSSIBLE TORNADO CROSSED INTO JAN CWA JUST NORTH OF AIMWELL. DAMAGE TO SEVERAL BUILDINGS AND TREES. DAMAGE PATH EXTENDED TO ENTERPRISE.

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
Apr 2, 1:34 PM CDT	Tornado Watch PDS	SPC	7 hr

The nearest sounding before it

Jackson, MS (KJAN), launched 12:00Z, 9.5 hours before the alert went out and 177 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1500 m above ground
0-6 km bulk shear: 30 kt
0-1 km storm-relative helicity: 106 m²/s²
0-3 km storm-relative helicity: 131 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

811 
WFUS54 KJAN 022128
TORJAN
LAC025-041-022230-
/O.NEW.KJAN.TO.W.0036.170402T2128Z-170402T2230Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Jackson MS
428 PM CDT SUN APR 2 2017

The National Weather Service in Jackson has issued a

* Tornado Warning for...
  Northwestern Catahoula Parish in northeastern Louisiana...
  Southwestern Franklin Parish in northeastern Louisiana...

* Until 530 PM CDT
    
* At 427 PM CDT, a severe thunderstorm capable of producing a 
  tornado was located near Aimwell, or 15 miles west of 
  Harrisonburg, moving northeast at 40 mph.

  HAZARD...Tornado. 

  SOURCE...Radar indicated rotation. 

  IMPACT...Flying debris will be dangerous to those caught without 
           shelter. Mobile homes will be damaged or destroyed. 
           Damage to roofs, windows, and vehicles will occur.  Tree 
           damage is likely. 

* This dangerous storm will be near...
  Enterprise around 440 PM CDT. 
  Jigger around 500 PM CDT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 3193 9201 3193 9191 3197 9190 3197 9189
      3200 9190 3207 9177 3192 9158 3169 9198
      3171 9201
TIME...MOT...LOC 2127Z 212DEG 36KT 3182 9203 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

7

3 follow-up statements

881 
WWUS54 KJAN 022135
SVSJAN

Severe Weather Statement
National Weather Service Jackson MS
435 PM CDT SUN APR 2 2017

LAC025-041-022230-
/O.CON.KJAN.TO.W.0036.000000T0000Z-170402T2230Z/
Catahoula LA-Franklin LA-
435 PM CDT SUN APR 2 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 530 PM CDT FOR
NORTHWESTERN CATAHOULA AND SOUTHWESTERN FRANKLIN PARISHES...
        
At 435 PM CDT, a confirmed tornado was located over Rosefield, 
moving northeast at 40 mph.

HAZARD...Damaging tornado and quarter size hail. 

SOURCE...Radar confirmed tornado. 

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely. 

This tornado will be near...
  Jigger around 455 PM CDT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

To repeat, a tornado is on the ground. TAKE COVER NOW! Move to a
basement or an interior room on the lowest floor of a sturdy
building. Avoid windows. If you are outdoors, in a mobile home, or in
a vehicle, move to the closest substantial shelter and protect
yourself from flying debris.

&&

LAT...LON 3193 9201 3193 9191 3197 9190 3197 9189
      3200 9190 3207 9177 3192 9158 3169 9198
      3171 9201
TIME...MOT...LOC 2135Z 211DEG 37KT 3190 9198 

TORNADO...OBSERVED
HAIL...1.00IN

$$

7

760 
WWUS54 KJAN 022147
SVSJAN

Severe Weather Statement
National Weather Service Jackson MS
447 PM CDT SUN APR 2 2017

LAC025-041-022230-
/O.CON.KJAN.TO.W.0036.000000T0000Z-170402T2230Z/
Catahoula LA-Franklin LA-
447 PM CDT SUN APR 2 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 530 PM CDT FOR
NORTHWESTERN CATAHOULA AND SOUTHWESTERN FRANKLIN PARISHES...
        
At 447 PM CDT, a confirmed tornado was located near Enterprise, 
moving northeast at 40 mph.

HAZARD...Damaging tornado and quarter size hail. 

SOURCE...Radar confirmed tornado. 

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely. 

This tornado will be near...
  Jigger around 500 PM CDT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

To repeat, a tornado is on the ground. TAKE COVER NOW! Move to a
basement or an interior room on the lowest floor of a sturdy
building. Avoid windows. If you are outdoors, in a mobile home, or in
a vehicle, move to the closest substantial shelter and protect
yourself from flying debris.

&&

LAT...LON 3193 9201 3193 9191 3197 9190 3197 9189
      3200 9190 3207 9177 3192 9158 3169 9198
      3171 9201
TIME...MOT...LOC 2147Z 213DEG 35KT 3196 9190 

TORNADO...OBSERVED
HAIL...1.00IN

$$

7

047 
WWUS54 KJAN 022209
SVSJAN

Severe Weather Statement
National Weather Service Jackson MS
509 PM CDT SUN APR 2 2017

LAC025-022213-
/O.CAN.KJAN.TO.W.0036.000000T0000Z-170402T2230Z/
Catahoula LA-
509 PM CDT SUN APR 2 2017

...THE TORNADO WARNING FOR NORTHWESTERN CATAHOULA PARISH IS
CANCELLED...
    
The tornadic thunderstorm which prompted the warning has moved out 
of the warned area. 

A tornado watch remains in effect until 900 PM CDT for northeastern
Louisiana.

LAT...LON 3207 9177 3197 9165 3196 9165 3193 9167
      3188 9176 3192 9179 3194 9185 3195 9184
      3197 9186 3196 9186 3197 9189 3200 9190
TIME...MOT...LOC 2203Z 212DEG 36KT 3210 9180 

$$

LAC041-022230-
/O.CON.KJAN.TO.W.0036.000000T0000Z-170402T2230Z/
Franklin LA-
509 PM CDT SUN APR 2 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 530 PM CDT FOR
SOUTHWESTERN FRANKLIN PARISH...
    
At 503 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Liddieville, or near Winnsboro, moving northeast at
40 mph.

HAZARD...Tornado and quarter size hail. 

SOURCE...Radar indicated rotation. 

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely. 

This tornadic thunderstorm will remain over mainly rural areas of
southwestern Franklin Parish.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 3207 9177 3197 9165 3196 9165 3193 9167
      3188 9176 3192 9179 3194 9185 3195 9184
      3197 9186 3196 9186 3197 9189 3200 9190
TIME...MOT...LOC 2203Z 212DEG 36KT 3210 9180 

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

7

The office that day

Everything else NWS Jackson, MS issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 2, 4:54 AM CDT	Flash Flood Watch	JAN	Catahoula, Concordia, East Carroll, Franklin, Madison, Morehouse and 3 more	28 hr
Apr 2, 12:17 PM CDT	Severe Thunderstorm Warning	JAN	Morehouse, Richland	43 min
Apr 2, 12:59 PM CDT	Severe Thunderstorm Warning	JAN	Morehouse, Richland	46 min
Apr 2, 1:10 PM CDT	Severe Thunderstorm Warning	JAN	Morehouse	50 min
Apr 2, 1:33 PM CDT	Severe Thunderstorm Warning	JAN	Morehouse	27 min
Apr 2, 3:09 PM CDT	Special Weather Statement	JAN	Morehouse	36 min
Apr 2, 4:02 PM CDT	Severe Thunderstorm Warning	JAN	Morehouse	58 min
Apr 2, 4:12 PM CDT	Severe Thunderstorm Warning	JAN	Morehouse, Richland	48 min
Apr 2, 4:18 PM CDT	Tornado Warning	JAN	Franklin, Richland	57 min
Apr 2, 4:41 PM CDT	Severe Thunderstorm Warning	JAN	East Carroll, West Carroll	64 min
Apr 2, 4:52 PM CDT	Tornado Warning	JAN	Franklin, Richland	38 min
Apr 2, 5:01 PM CDT	Tornado Warning	JAN	Franklin	44 min
Apr 2, 5:10 PM CDT	Tornado Warning	JAN	Richland	28 min
Apr 2, 5:14 PM CDT	Tornado Warning	JAN	East Carroll	46 min
Apr 2, 5:28 PM CDT	Severe Thunderstorm Warning	JAN	Catahoula, Franklin	47 min
Apr 2, 5:33 PM CDT	Tornado Warning	JAN	Catahoula, Franklin	42 min
Apr 2, 5:34 PM CDT	Tornado Warning	JAN	Franklin, Madison, Tensas	41 min
Apr 2, 5:40 PM CDT	Severe Thunderstorm Warning	JAN	East Carroll, Richland, West Carroll	50 min
Apr 2, 5:46 PM CDT	Severe Thunderstorm Warning	JAN	Tensas	44 min
Apr 2, 5:59 PM CDT	Tornado Warning	JAN	Franklin, Madison, Tensas	26 min
Apr 2, 6:05 PM CDT	Tornado Warning	JAN	Madison, Tensas	25 min
Apr 2, 6:15 PM CDT	Tornado Warning	JAN	Madison, Tensas	60 min
Apr 2, 6:40 PM CDT	Flash Flood Warning	JAN	Catahoula, Franklin, Madison, Richland, Tensas	4 hr

Nearby

Tornado Warnings in Louisiana, 2017 Every tornado warning in 2017 Tornadoes in 2017

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; radar from the NEXRAD Level II archive.