Alert archive / Louisiana / Tornado Warnings in 2017

Tornado Warning 44, NWS Jackson, MS

April 2, 2017Franklin Parish, Madison Parish, Tensas Parish, Louisiana

NWS Jackson, MS issued this tornado warning at Apr 2, 2017, 5:59 PM CDT for Franklin Parish, Madison Parish, Tensas Parish, Louisiana. It was in force for 26 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: Apr 2, 2017, 5:59 PM CDT (22:59 UTC)
Expired: Apr 2, 2017, 6:25 PM CDT
In force: 26 min
Issued by: NWS Jackson, MS
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

Counties Franklin Parish, LA, Madison Parish, LA, Tensas Parish, LA

The radar

The Jackson/Brandon,MS radar (KDGX), 150 km from the middle of the area, began a volume at 22:58 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, 6:11 PM CDT	TSTM WND DMG	2 Ne Winnsboro, LA	TREES WERE REPORTED BLOWN DOWN ACROSS THE PARISH ON ROADWAYS. THERE WAS SOME STRUCTURAL DAMAGE.

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
Apr 2, 4:52 PM CDT	Tornado Watch	SPC	9 hr

The nearest sounding before it

Jackson, MS (KJAN), launched 12:00Z, 11.0 hours before the alert went out and 141 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.

698 
WFUS54 KJAN 022259
TORJAN
LAC041-065-107-022345-
/O.NEW.KJAN.TO.W.0044.170402T2259Z-170402T2345Z/

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

The National Weather Service in Jackson has issued a

* Tornado Warning for...
  Northwestern Tensas Parish in northeastern Louisiana...
  Southwestern Madison Parish in northeastern Louisiana...
  Northeastern Franklin Parish in northeastern Louisiana...

* Until 645 PM CDT
    
* At 559 PM CDT, a severe thunderstorm capable of producing a tornado
  was located near Jigger, or near Winnsboro, moving northeast at 45
  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...
  Crowville around 615 PM CDT. 
  Bakers around 625 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 3218 9177 3241 9155 3241 9148 3220 9126
      3204 9163
TIME...MOT...LOC 2259Z 231DEG 41KT 3209 9174 

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

$$

EC

1 follow-up statement

100 
WWUS54 KJAN 022325
SVSJAN

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

LAC041-065-107-022333-
/O.CAN.KJAN.TO.W.0044.000000T0000Z-170402T2345Z/
Tensas LA-Madison LA-Franklin LA-
625 PM CDT SUN APR 2 2017

...THE TORNADO WARNING FOR NORTHWESTERN TENSAS...SOUTHWESTERN MADISON
AND NORTHEASTERN FRANKLIN PARISHES IS CANCELLED...
        
The storm which prompted the warning has moved out of the area.
Therefore the warning has been cancelled.  However heavy rain is
still possible with this thunderstorm.

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

Remember, a Tornado Warning still remains in effect for southeastern 
portions of Madison Parish through 715 pm CDT.

LAT...LON 3218 9177 3241 9155 3241 9148 3220 9126
      3204 9163
TIME...MOT...LOC 2321Z 231DEG 41KT 3227 9148 

$$

BYB

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, 4:28 PM CDT	Tornado Warning	JAN	Catahoula, Franklin	62 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, 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.