Alert archive / Mississippi / Tornado Warnings in 2018

Tornado Warning 20, NWS Jackson, MS

April 6, 2018Rankin County, Mississippi

NWS Jackson, MS issued this tornado warning at Apr 6, 2018, 8:03 PM CDT for Rankin County, Mississippi. It was in force for 15 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 6, 2018, 8:03 PM CDT (01:03 UTC)
Expired: Apr 6, 2018, 8:18 PM CDT
In force: 15 min
Issued by: NWS Jackson, MS
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

County Rankin County, MS

The radar

The Jackson/Brandon,MS radar (KDGX), 16 km from the middle of the area, began a volume at 01:07 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 6, 8:03 PM CDT	TORNADO	7 Nw Pelahatchie, MS	THIS EF-0 TORNADO BEGAN IN A WOODED AREA ALONG PELAHATCHEE CREEK, THEN TRACKED EAST SOUTHEASTWARD NEAR HAYNES CHAPEL ROAD, ENDING NEAR LAKE RD. A FEW TREES WERE UPROOTED AND SEVERAL LARGE BRANCHES WERE SNAPPED ALONG THE PATH. POWER LINES WERE DOWNED ALONG HAYN
Apr 6, 8:05 PM CDT	TORNADO	6 Nw Pelahatchie, MS	TREE DOWNED, POWER LINES DOWNED, AND LIMBS DOWNED ALONG HAYNES CHAPEL RD. TDS NOTED ON RADAR AT THE TIME.

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 6, 3:20 PM CDT	Tornado Watch	SPC	8 hr

The nearest sounding before it

Jackson, MS (KJAN), launched 00:00Z, 1.1 hours before the alert went out and 23 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: 877 J/kg
Mixed-layer CIN: -1 J/kg
Mixed-layer LCL: 706 m above ground
0-6 km bulk shear: 31 kt
0-1 km storm-relative helicity: 212 m²/s²
0-3 km storm-relative helicity: 369 m²/s²
Significant tornado parameter: 0.8
Supercell composite: 5.0

Open this sounding in Storm Lab

The text

As transmitted.

784 
WFUS54 KJAN 070103
TORJAN
MSC121-070130-
/O.NEW.KJAN.TO.W.0020.180407T0103Z-180407T0130Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Jackson MS
803 PM CDT FRI APR 6 2018

The National Weather Service in Jackson has issued a

* Tornado Warning for...
  East central Rankin County in central Mississippi...

* Until 830 PM CDT
    
* At 803 PM CDT, a severe thunderstorm capable of producing a tornado
  was located near Fannin, or 8 miles northeast of Brandon, moving
  east at 30 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...
  Pelahatchie around 815 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 3235 8995 3241 8992 3242 8974 3235 8973
      3227 8973
TIME...MOT...LOC 0103Z 289DEG 26KT 3237 8989 

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

$$

BYB

2 follow-up statements

073 
WWUS54 KJAN 070107
SVSJAN

Severe Weather Statement
National Weather Service Jackson MS
807 PM CDT FRI APR 6 2018

MSC121-070130-
/O.CON.KJAN.TO.W.0020.000000T0000Z-180407T0130Z/
Rankin MS-
807 PM CDT FRI APR 6 2018

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 830 PM CDT FOR EAST
CENTRAL RANKIN COUNTY...
    
At 807 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Pelahatchie, or 10 miles northeast of Brandon,
moving east at 30 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...
  Pelahatchie around 815 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 3235 8992 3241 8988 3242 8974 3235 8973
      3227 8973
TIME...MOT...LOC 0107Z 287DEG 26KT 3237 8986 

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

$$

BYB

956 
WWUS54 KJAN 070118
SVSJAN

Severe Weather Statement
National Weather Service Jackson MS
818 PM CDT FRI APR 6 2018

MSC121-070128-
/O.CAN.KJAN.TO.W.0020.000000T0000Z-180407T0130Z/
Rankin MS-
818 PM CDT FRI APR 6 2018

...THE TORNADO WARNING FOR EAST CENTRAL RANKIN COUNTY 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.  However gusty winds and
heavy rain are still possible with this thunderstorm.

A tornado watch remains in effect until 1100 PM CDT for central
Mississippi.

LAT...LON 3235 8992 3241 8988 3242 8974 3235 8973
      3227 8973
TIME...MOT...LOC 0117Z 289DEG 26KT 3234 8977 

$$

BYB

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 6, 7:18 PM CDT	Flash Flood Warning	JAN	Issaquena, Warren	3 hr
Apr 6, 7:52 PM CDT	Severe Thunderstorm Warning	JAN	Hinds, Newton, Rankin, Scott, Smith	53 min
Apr 6, 8:00 PM CDT	Severe Thunderstorm Warning	JAN	Claiborne, Copiah, Hinds, Jefferson, Warren	60 min
Apr 6, 8:09 PM CDT	Tornado Warning	JAN	Claiborne, Warren	36 min
Apr 6, 8:13 PM CDT	Flash Flood Warning	JAN	Hinds, Madison, Rankin, Warren	3 hr
Apr 6, 8:48 PM CDT	Special Weather Statement	JAN	Newton, Smith	57 min
Apr 6, 8:51 PM CDT	Flash Flood Warning	JAN	Leake, Neshoba, Newton, Scott	3 hr
Apr 6, 8:54 PM CDT	Severe Thunderstorm Warning	JAN	Adams, Claiborne, Copiah, Hinds, Jefferson, Simpson	66 min
Apr 6, 9:19 PM CDT	Tornado Warning	JAN	Claiborne, Copiah	41 min
Apr 6, 9:25 PM CDT	Tornado Warning	JAN	Copiah, Hinds	35 min
Apr 6, 9:29 PM CDT	Severe Thunderstorm Warning	JAN	Clarke, Jasper, Lauderdale, Newton	46 min
Apr 6, 9:37 PM CDT	Severe Thunderstorm Warning	JAN	Adams	68 min
Apr 6, 9:45 PM CDT	Flash Flood Warning	JAN	Clarke, Kemper, Lauderdale	3 hr
Apr 6, 9:55 PM CDT	River Flood Warning	JAN	Leake	4 days
Apr 6, 9:57 PM CDT	Tornado Warning	JAN	Copiah	48 min
Apr 6, 10:05 PM CDT	Severe Thunderstorm Warning	JAN	Simpson	55 min
Apr 6, 10:07 PM CDT	River Flood Warning	JAN	Sharkey	69 hr
Apr 6, 10:13 PM CDT	Flash Flood Warning	JAN	Hinds, Rankin	3 hr
Apr 6, 10:35 PM CDT	Tornado Warning	JAN	Jefferson Davis, Lawrence, Simpson	55 min
Apr 6, 10:43 PM CDT	Severe Thunderstorm Warning	JAN	Lawrence, Lincoln	46 min
Apr 6, 10:51 PM CDT	Severe Thunderstorm Warning	JAN	Adams, Franklin, Jefferson	39 min
Apr 6, 11:02 PM CDT	Areal Flood Warning	JAN	Hinds, Madison, Rankin, Warren	6 hr
Apr 6, 11:10 PM CDT	Flash Flood Warning	JAN	Clarke, Jasper, Smith	4 hr
Apr 6, 11:13 PM CDT	Tornado Warning	JAN	Covington	47 min
Apr 6, 11:17 PM CDT	Severe Thunderstorm Warning	JAN	Jefferson Davis, Lawrence, Marion	38 min
Apr 6, 11:36 PM CDT	Severe Thunderstorm Warning	JAN	Franklin, Lincoln	54 min
Apr 6, 11:46 PM CDT	Severe Thunderstorm Warning	JAN	Jones	59 min
Apr 7, 12:08 AM CDT	Flash Flood Warning	JAN	Jones	4 hr
Apr 7, 12:48 AM CDT	Special Weather Statement	JAN	Lamar, Marion	57 min
Apr 7, 1:26 AM CDT	Areal Flood Warning	JAN	Rankin	6 hr
Apr 7, 1:38 AM CDT	Special Weather Statement	JAN	Forrest	52 min
Apr 7, 1:48 AM CDT	Special Weather Statement	JAN	Lamar	27 min
Apr 7, 3:45 AM CDT	Freeze Warning	JAN	Attala, Bolivar, Carroll, Choctaw, Clay, Grenada and 11 more	28 hr
Apr 7, 9:01 AM CDT	River Flood Warning	JAN	Leake	5 days
Apr 7, 9:02 AM CDT	River Flood Warning	JAN	Leake	5 days
Apr 7, 9:03 AM CDT	River Flood Warning	JAN	Leake	50 hr

Nearby

Tornado Warnings in Mississippi, 2018 Every tornado warning in 2018 Tornadoes in 2018

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.