Alert archive / Mississippi / Tornado Warnings in 2017

Tornado Warning 83, NWS Jackson, MS

August 31, 2017Noxubee County, Oktibbeha County, Winston County, Mississippi

NWS Jackson, MS issued this tornado warning at Aug 31, 2017, 10:51 AM CDT for Noxubee County, Oktibbeha County, Winston County, Mississippi. It was in force for 22 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 31, 2017, 10:51 AM CDT (15:51 UTC)
Expired: Aug 31, 2017, 11:13 AM CDT
In force: 22 min
Issued by: NWS Jackson, MS
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.0 in

Counties Noxubee County, MS, Oktibbeha County, MS, Winston County, MS

The radar

The Columbus AFB radar (KGWX), 88 km from the middle of the area, began a volume at 15:52 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 nearest sounding before it

Jackson, MS (KJAN), launched 12:00Z, 3.9 hours before the alert went out and 155 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: 80 J/kg
Mixed-layer CIN: -19 J/kg
Mixed-layer LCL: 821 m above ground
0-6 km bulk shear: 36 kt
0-1 km storm-relative helicity: 264 m²/s²
0-3 km storm-relative helicity: 272 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.5

Open this sounding in Storm Lab

The text

As transmitted.

278 
WFUS54 KJAN 311551
TORJAN
MSC103-105-159-311630-
/O.NEW.KJAN.TO.W.0083.170831T1551Z-170831T1630Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Jackson MS
1051 AM CDT THU AUG 31 2017

The National Weather Service in Jackson has issued a

* Tornado Warning for...
  Northwestern Noxubee County in east central Mississippi...
  Southeastern Oktibbeha County in northeastern Mississippi...
  Northeastern Winston County in east central Mississippi...

* Until 1130 AM CDT
    
* At 1051 AM CDT, a severe thunderstorm capable of producing a
  tornado was located 7 miles east of Betheden, or 14 miles east of
  Louisville, moving north at 40 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...
  Oktoc around 1105 AM 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 3312 8879 3315 8890 3336 8887 3332 8870
TIME...MOT...LOC 1551Z 185DEG 35KT 3318 8882 

TORNADO...RADAR INDICATED
HAIL...0.00IN

$$

JM

2 follow-up statements

526 
WWUS54 KJAN 311606
SVSJAN

Severe Weather Statement
National Weather Service Jackson MS
1106 AM CDT THU AUG 31 2017

MSC159-311616-
/O.CAN.KJAN.TO.W.0083.000000T0000Z-170831T1630Z/
Winston MS-
1106 AM CDT THU AUG 31 2017

...THE TORNADO WARNING FOR NORTHEASTERN WINSTON COUNTY IS
CANCELLED...
    
The tornadic thunderstorm which prompted the warning has moved out 
of the warned area. Therefore, the warning has been cancelled.

LAT...LON 3312 8879 3313 8881 3329 8881 3329 8888
      3336 8887 3332 8870
TIME...MOT...LOC 1606Z 185DEG 35KT 3333 8880 

$$

MSC103-105-311630-
/O.CON.KJAN.TO.W.0083.000000T0000Z-170831T1630Z/
Noxubee MS-Oktibbeha MS-
1106 AM CDT THU AUG 31 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1130 AM CDT FOR
NORTHWESTERN NOXUBEE AND SOUTHEASTERN OKTIBBEHA COUNTIES...
    
At 1106 AM CDT, a severe thunderstorm capable of producing a tornado
was located over Oktoc, or 8 miles south of Starkville, moving north
at 40 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 Noxubee and southeastern Oktibbeha Counties.

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 3312 8879 3313 8881 3329 8881 3329 8888
      3336 8887 3332 8870
TIME...MOT...LOC 1606Z 185DEG 35KT 3333 8880 

TORNADO...RADAR INDICATED
HAIL...0.00IN

$$

JM

131 
WWUS54 KJAN 311613
SVSJAN

Severe Weather Statement
National Weather Service Jackson MS
1113 AM CDT THU AUG 31 2017

MSC103-105-311623-
/O.CAN.KJAN.TO.W.0083.000000T0000Z-170831T1630Z/
Noxubee MS-Oktibbeha MS-
1113 AM CDT THU AUG 31 2017

...THE TORNADO WARNING FOR NORTHWESTERN NOXUBEE AND SOUTHEASTERN
OKTIBBEHA COUNTIES IS CANCELLED...
        
The storm which prompted the warning has weakened below severe
limits, and has exited the warned area. Therefore, the warning has
been cancelled.

A tornado watch remains in effect until 800 PM CDT for northeastern
and east central Mississippi.

LAT...LON 3312 8879 3313 8881 3329 8881 3329 8888
      3336 8887 3332 8870
TIME...MOT...LOC 1611Z 185DEG 35KT 3340 8879 

$$

JM

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 30, 7:30 PM CDT	Special Weather Statement	JAN	Copiah	30 min
Aug 30, 9:10 PM CDT	Tornado Warning	JAN	Copiah, Lawrence, Simpson	34 min
Aug 30, 9:44 PM CDT	Special Weather Statement	JAN	Simpson	31 min
Aug 31, 10:03 AM CDT	Special Weather Statement	JAN	Kemper	27 min
Aug 31, 10:05 AM CDT	Tornado Warning	JAN	Kemper, Neshoba, Winston	25 min
Aug 31, 10:14 AM CDT	Special Weather Statement	JAN	Webster	31 min
Aug 31, 10:27 AM CDT	Tornado Warning	JAN	Noxubee, Winston	33 min
Aug 31, 10:37 AM CDT	Special Weather Statement	JAN	Kemper	23 min
Aug 31, 10:38 AM CDT	Special Weather Statement	JAN	Lowndes	22 min
Aug 31, 10:46 AM CDT	Tornado Warning	JAN	Kemper, Lauderdale	36 min
Aug 31, 12:37 PM CDT	Special Weather Statement	JAN	Noxubee	23 min
Aug 31, 12:59 PM CDT	Special Weather Statement	JAN	Oktibbeha	31 min
Aug 31, 3:36 PM CDT	Special Weather Statement	JAN	Lowndes	39 min
Aug 31, 3:49 PM CDT	Tornado Warning	JAN	Lowndes	41 min
Aug 31, 5:29 PM CDT	Special Weather Statement	JAN	Bolivar, Sunflower, Washington	61 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.