Alert archive / Louisiana / Tornado Warnings in 2017

Tornado Warning 39, NWS Jackson, MS

April 2, 2017Richland Parish, Louisiana

NWS Jackson, MS issued this tornado warning at Apr 2, 2017, 5:10 PM CDT for Richland Parish, Louisiana. It was in force for 28 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: Apr 2, 2017, 5:10 PM CDT (22:10 UTC)
Expired: Apr 2, 2017, 5:38 PM CDT
In force: 28 min
Issued by: NWS Jackson, MS
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 1.0 in

County Richland Parish, LA

The radar

The Jackson/Brandon,MS radar (KDGX), 154 km from the middle of the area, began a volume at 22:11 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.

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, 10.2 hours before the alert went out and 145 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.

222 
WFUS54 KJAN 022210
TORJAN
LAC083-022300-
/O.NEW.KJAN.TO.W.0039.170402T2210Z-170402T2300Z/

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

The National Weather Service in Jackson has issued a

* Tornado Warning for...
  Northeastern Richland Parish in northeastern Louisiana...

* Until 600 PM CDT
    
* At 510 PM CDT, a severe thunderstorm capable of producing a tornado
  was located near Holly Ridge, or near Rayville, moving northeast at
  25 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...
  Holly Ridge around 525 PM CDT. 
  Warden around 550 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 3261 9172 3255 9144 3253 9147 3252 9147
      3240 9160 3240 9164 3245 9180
TIME...MOT...LOC 2210Z 217DEG 20KT 3240 9169 

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

$$

EC

2 follow-up statements

290 
WWUS54 KJAN 022227
SVSJAN

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

LAC083-022300-
/O.CON.KJAN.TO.W.0039.000000T0000Z-170402T2300Z/
Richland LA-
527 PM CDT SUN APR 2 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 600 PM CDT FOR
NORTHEASTERN RICHLAND PARISH...
    
At 526 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Holly Ridge, or 11 miles east of Rayville, moving
northeast at 30 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...
  Warden around 535 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 3258 9160 3255 9144 3253 9147 3252 9147
      3242 9158 3245 9166
TIME...MOT...LOC 2226Z 225DEG 26KT 3249 9157 

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

$$

EC

724 
WWUS54 KJAN 022238
SVSJAN

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

LAC083-022248-
/O.CAN.KJAN.TO.W.0039.000000T0000Z-170402T2300Z/
Richland LA-
538 PM CDT SUN APR 2 2017

...THE TORNADO WARNING FOR NORTHEASTERN RICHLAND PARISH IS
CANCELLED...
                
The storm which prompted the warning has weakened below severe
limits, and no longer appears capable of producing a tornado.
Therefore the warning has been cancelled.

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

LAT...LON 3258 9160 3255 9144 3253 9147 3252 9147
      3242 9158 3245 9166
TIME...MOT...LOC 2237Z 217DEG 20KT 3254 9152 

$$

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, 5:14 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.