Alert archive / Louisiana / Tornado Warnings in 2017

Tornado Warning 42, NWS Jackson, MS

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

NWS Jackson, MS issued this tornado warning at Apr 2, 2017, 5:34 PM CDT for Franklin Parish, Madison Parish, Tensas Parish, Louisiana. It was in force for 41 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, 5:34 PM CDT (22:34 UTC)
Expired: Apr 2, 2017, 6:15 PM CDT
In force: 41 min
Issued by: NWS Jackson, MS
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 1.0 in

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

The radar

The Jackson/Brandon,MS radar (KDGX), 139 km from the middle of the area, began a volume at 22:37 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, 5:41 PM CDT	TORNADO	14 Ne Gilbert, LA	THIS BRIEF WEAK TORNADO WAS RATED EF0 WITH ESTIMATED PEAK WINDS OF 80 MPH, A PATH LENGTH OF 1.4 MILES, AND A MAX WIDTH OF 100 YARDS. IT SNAPPED A FEW TREES AND LIMBS, AND A TORNADO DEBRIS SIGNATURE WAS OBSERVED IN DUAL-POL RADAR DATA.

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, 10.6 hours before the alert went out and 130 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.

414 
WFUS54 KJAN 022234
TORJAN
LAC041-065-107-022315-
/O.NEW.KJAN.TO.W.0042.170402T2234Z-170402T2315Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Jackson MS
534 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 615 PM CDT
    
* At 534 PM CDT, a severe thunderstorm capable of producing a tornado
  was located near Crowville, or 13 miles east of Winnsboro, moving
  northeast at 35 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 dangerous storm will be near...
  Bakers around 545 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 3241 9156 3241 9153 3238 9131 3222 9120
      3212 9150 3225 9159
TIME...MOT...LOC 2234Z 221DEG 29KT 3221 9150 

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

$$

EC

2 follow-up statements

945 
WWUS54 KJAN 022246
SVSJAN

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

LAC041-065-107-022315-
/O.CON.KJAN.TO.W.0042.000000T0000Z-170402T2315Z/
Tensas LA-Madison LA-Franklin LA-
546 PM CDT SUN APR 2 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 615 PM CDT FOR
NORTHWESTERN TENSAS...SOUTHWESTERN MADISON AND NORTHEASTERN FRANKLIN
PARISHES...
        
At 545 PM CDT, a confirmed tornado was located near Crowville, or 14
miles east of Winnsboro, moving northeast at 35 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...
  Bakers around 555 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 3241 9156 3241 9153 3238 9131 3222 9120
      3212 9150 3225 9159
TIME...MOT...LOC 2245Z 228DEG 29KT 3222 9149 

TORNADO...OBSERVED
HAIL...1.00IN

$$

EC

372 
WWUS54 KJAN 022252 CCA
SVSJAN

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

LAC041-065-107-022315-
/O.COR.KJAN.TO.W.0042.000000T0000Z-170402T2315Z/
Tensas LA-Madison LA-Franklin LA-
552 PM CDT SUN APR 2 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 615 PM CDT FOR
NORTHWESTERN TENSAS...SOUTHWESTERN MADISON AND NORTHEASTERN FRANKLIN
PARISHES...
    
At 552 PM CDT, a severe thunderstorm capable of producing a tornado
was located 7 miles southeast of Bakers, or 16 miles east of
Winnsboro, moving northeast at 25 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 tornadic thunderstorm will remain over mainly rural areas of
northwestern Tensas...southwestern Madison and northeastern Franklin
Parishes.

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 3241 9156 3241 9153 3238 9131 3222 9120
      3212 9150 3225 9159
TIME...MOT...LOC 2246Z 235DEG 23KT 3222 9149 

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

$$

EC

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, 5:40 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.