Alert archive / Mississippi / Tornado Warnings in 2017

Tornado Warning 75, NWS Jackson, MS

August 30, 2017Forrest County, Jones County, Mississippi

NWS Jackson, MS issued this tornado warning at Aug 30, 2017, 11:50 AM CDT for Forrest County, Jones County, Mississippi. It was in force for 25 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: Aug 30, 2017, 11:50 AM CDT (16:50 UTC)
Expired: Aug 30, 2017, 12:15 PM CDT
In force: 25 min
Issued by: NWS Jackson, MS
Area: Storm-based polygon
Tornado: Observed
Hail: 0.0 in

Counties Forrest County, MS, Jones County, MS

The radar

The Jackson/Brandon,MS radar (KDGX), 119 km from the middle of the area, began a volume at 16:51 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
Aug 30, 10:22 AM CDT	Tornado Watch	SPC	8 hr

The nearest sounding before it

Jackson, MS (KJAN), launched 12:00Z, 4.8 hours before the alert went out and 128 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: 273 J/kg
Mixed-layer CIN: -30 J/kg
Mixed-layer LCL: 523 m above ground
0-6 km bulk shear: 31 kt
0-1 km storm-relative helicity: 235 m²/s²
0-3 km storm-relative helicity: 218 m²/s²
Significant tornado parameter: 0.3
Supercell composite: 3.0

Open this sounding in Storm Lab

The text

As transmitted.

195 
WFUS54 KJAN 301650
TORJAN
MSC035-067-301715-
/O.NEW.KJAN.TO.W.0075.170830T1650Z-170830T1715Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Jackson MS
1150 AM CDT WED AUG 30 2017

The National Weather Service in Jackson has issued a

* Tornado Warning for...
  Northeastern Forrest County in southeastern Mississippi...
  Southwestern Jones County in southeastern Mississippi...

* Until 1215 PM CDT

* At 1149 AM CDT, a confirmed tornado was located over Eastabuchie,
  or near Petal, moving north at 35 mph.

  HAZARD...Damaging tornado. 

  SOURCE...Weather spotters 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. 

* The tornado will be near...
  Moselle around 1200 PM CDT. 
  Laurel and Ellisville around 1215 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 3133 8935 3134 8935 3135 8937 3161 8939
      3160 8907 3143 8912 3143 8914 3136 8914
      3131 8916
TIME...MOT...LOC 1649Z 185DEG 29KT 3140 8926 

TORNADO...OBSERVED
HAIL...0.00IN

$$

17

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 30, 9:43 AM CDT	Special Weather Statement	JAN	Lamar	32 min
Aug 30, 9:50 AM CDT	Severe Thunderstorm Warning	JAN	Forrest, Lamar	55 min
Aug 30, 10:05 AM CDT	Tornado Warning	JAN	Forrest, Lamar	40 min
Aug 30, 10:38 AM CDT	Tornado Warning	JAN	Forrest, Lamar	52 min
Aug 30, 10:43 AM CDT	Tornado Warning	JAN	Covington, Forrest, Jones, Lamar	62 min
Aug 30, 11:36 AM CDT	Special Weather Statement	JAN	Marion	24 min
Aug 30, 11:55 AM CDT	Tornado Warning	JAN	Covington, Jefferson Davis, Marion	65 min
Aug 30, 12:18 PM CDT	Tornado Warning	JAN	Forrest, Jones	57 min
Aug 30, 12:55 PM CDT	Severe Thunderstorm Warning	JAN	Claiborne, Copiah, Franklin, Jefferson, Lincoln	50 min
Aug 30, 1:14 PM CDT	Severe Thunderstorm Warning	JAN	Forrest	46 min
Aug 30, 1:44 PM CDT	Special Weather Statement	JAN	Jones	31 min
Aug 30, 1:48 PM CDT	Special Weather Statement	JAN	Copiah	42 min
Aug 30, 2:06 PM CDT	Special Weather Statement	JAN	Smith	24 min
Aug 30, 2:27 PM CDT	Special Weather Statement	JAN	Hinds	48 min
Aug 30, 2:33 PM CDT	Special Weather Statement	JAN	Smith	27 min
Aug 30, 2:45 PM CDT	Tornado Warning	JAN	Hinds, Warren	33 min
Aug 30, 3:24 PM CDT	Special Weather Statement	JAN	Humphreys	36 min
Aug 30, 3:53 PM CDT	Special Weather Statement	JAN	Simpson	37 min
Aug 30, 3:57 PM CDT	Special Weather Statement	JAN	Simpson	48 min
Aug 30, 4:38 PM CDT	Special Weather Statement	JAN	Rankin	37 min

Nearby

Tornado Warnings in Mississippi, 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.