Alert archive / Mississippi / Tornado Warnings in 2012

Tornado Warning 66, NWS Jackson, MS

August 30, 2012Neshoba County, Mississippi

NWS Jackson, MS issued this tornado warning at Aug 30, 2012, 9:29 PM CDT for Neshoba County, Mississippi. It was in force for 46 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, 2012, 9:29 PM CDT (02:29 UTC)
Expired
Aug 30, 2012, 10:15 PM CDT
In force
46 min
Issued by
NWS Jackson, MS
Area
Storm-based polygon

County Neshoba County, MS

The radar

The Jackson/Brandon,MS radar (KDGX), 88 km from the middle of the area, began a volume at 02:31 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.

IssuedProductOfficeLasted
Aug 30, 3:56 PM CDTTornado WatchSPC6 hr

The nearest sounding before it

Jackson, MS (KJAN), launched 00:00Z, 2.5 hours before the alert went out and 93 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-pSkew-T log-p diagram, Jackson, MS at 00:00Z on 2012-08-31Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 42 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Jackson, MS at 00:00Z on 2012-08-31The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 303 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
42 J/kg
Mixed-layer CIN
-83 J/kg
Mixed-layer LCL
796 m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
303 m²/s²
0-3 km storm-relative helicity
319 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

985 
WFUS54 KJAN 310229
TORJAN
MSC099-310315-
/O.NEW.KJAN.TO.W.0066.120831T0229Z-120831T0315Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE JACKSON MS
929 PM CDT THU AUG 30 2012

THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A

* TORNADO WARNING FOR...
  WESTERN NESHOBA COUNTY IN EAST CENTRAL MISSISSIPPI...

* UNTIL 1015 PM CDT

* AT 930 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 9 MILES SOUTH OF
  DIXON MOVING NORTH AT 35 MPH.

* THE TORNADO WILL BE NEAR...
  DIXON BY 940 PM CDT...
  PEARL RIVER BY 955 PM CDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WARNING MEANS THAT A TORNADO IS OCCURRING OR IMMINENT. YOU
SHOULD ACTIVATE YOUR TORNADO ACTION PLAN AND TAKE PROTECTIVE ACTION
NOW.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT THURSDAY EVENING
FOR MISSISSIPPI.

&&

LAT...LON 3258 8924 3281 8931 3293 8931 3294 8927
      3293 8914 3258 8914
TIME...MOT...LOC 0230Z 175DEG 31KT 3257 8918

$$

BYB
3 follow-up statements
856 
WWUS54 KJAN 310249
SVSJAN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
949 PM CDT THU AUG 30 2012

MSC099-310315-
/O.CON.KJAN.TO.W.0066.000000T0000Z-120831T0315Z/
NESHOBA MS-
949 PM CDT THU AUG 30 2012

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1015 PM CDT FOR
NORTHWESTERN NESHOBA COUNTY...

AT 949 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUE TO
TRACK A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS
TORNADO WAS LOCATED 6 MILES SOUTHEAST OF PEARL RIVER MOVING NORTH AT
35 MPH.

THE TORNADO WILL BE NEAR...
  PEARL RIVER BY 955 PM CDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WARNING MEANS THAT A TORNADO IS OCCURRING OR IMMINENT. YOU
SHOULD ACTIVATE YOUR TORNADO ACTION PLAN AND TAKE PROTECTIVE ACTION
NOW.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 500 AM CDT FRIDAY MORNING FOR
MISSISSIPPI.

&&

LAT...LON 3269 8926 3288 8931 3293 8931 3294 8922
      3293 8914 3270 8914
TIME...MOT...LOC 0249Z 175DEG 32KT 3274 8920

$$

BYB
277 
WWUS54 KJAN 310301
SVSJAN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
1001 PM CDT THU AUG 30 2012

MSC099-310315-
/O.CON.KJAN.TO.W.0066.000000T0000Z-120831T0315Z/
NESHOBA MS-
1001 PM CDT THU AUG 30 2012

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1015 PM CDT FOR
NORTHWESTERN NESHOBA COUNTY...

AT 1002 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUE TO
TRACK A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS
TORNADO WAS LOCATED OVER CENTRAL NESHOBA COUNTY MOVING NORTH AT 35
MPH.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WARNING MEANS THAT A TORNADO IS OCCURRING OR IMMINENT. YOU
SHOULD ACTIVATE YOUR TORNADO ACTION PLAN AND TAKE PROTECTIVE ACTION
NOW.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 500 AM CDT FRIDAY MORNING FOR
MISSISSIPPI.

&&

LAT...LON 3280 8916 3280 8927 3293 8930 3294 8925
      3293 8919 3294 8918 3293 8916
TIME...MOT...LOC 0302Z 175DEG 32KT 3286 8921

$$

BYB
646 
WWUS54 KJAN 310316
SVSJAN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
1016 PM CDT THU AUG 30 2012

MSC099-310327-
/O.EXP.KJAN.TO.W.0066.000000T0000Z-120831T0315Z/
NESHOBA MS-
1016 PM CDT THU AUG 30 2012

...THE TORNADO WARNING FOR NORTHWESTERN NESHOBA COUNTY HAS EXPIRED...

A TORNADO WATCH REMAINS IN EFFECT UNTIL 500 AM CDT FRIDAY MORNING FOR
MISSISSIPPI.

LAT...LON 3280 8916 3280 8927 3293 8930 3294 8925
      3293 8919 3294 8918 3293 8916
TIME...MOT...LOC 0301Z 175DEG 32KT 3285 8921

$$

BYB

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 30, 7:41 PM CDTSpecial Weather StatementJANRankin, Simpson59 min
Aug 30, 8:01 PM CDTSpecial Weather StatementJANJasper29 min
Aug 30, 8:10 PM CDTTornado WarningJANJasper50 min
Aug 30, 8:23 PM CDTTornado WarningJANCovington, Jasper, Jones, Smith37 min
Aug 30, 8:29 PM CDTAreal Flood WarningJANBolivar, Washington12 hr
Aug 30, 8:35 PM CDTFlash Flood WatchJANAdams, Claiborne, Clarke, Copiah, Covington, Forrest and 20 more4 hr
Aug 30, 8:48 PM CDTTornado WarningJANJefferson Davis, Lawrence, Marion42 min
Aug 30, 8:48 PM CDTTornado WarningJANNewton45 min
Aug 30, 9:03 PM CDTFlash Flood WarningJANJefferson Davis, Lawrence, Marion117 min
Aug 30, 9:39 PM CDTSpecial Weather StatementJANRankin31 min
Aug 30, 10:07 PM CDTTornado WarningJANAttala, Choctaw, Winston32 min
Aug 31, 1:36 AM CDTSpecial Weather StatementJANMadison, Rankin29 min
Aug 31, 10:21 AM CDTRiver Flood WarningJANCopiah, Simpson48 hr
Aug 31, 3:11 PM CDTSpecial Weather StatementJANClaiborne, Jefferson39 min
Aug 31, 3:30 PM CDTSpecial Weather StatementJANJasper, Simpson, Smith40 min
Aug 31, 3:43 PM CDTSpecial Weather StatementJANClaiborne32 min
Aug 31, 4:02 PM CDTSpecial Weather StatementJANWarren43 min
Aug 31, 4:19 PM CDTSpecial Weather StatementJANLamar, Marion41 min
Aug 31, 4:37 PM CDTSevere Thunderstorm WarningJANIssaquena, Warren38 min
Aug 31, 4:57 PM CDTSevere Thunderstorm WarningJANSharkey33 min
Aug 31, 5:01 PM CDTSpecial Weather StatementJANMadison29 min
Aug 31, 5:28 PM CDTSpecial Weather StatementJANLowndes32 min
Aug 31, 5:29 PM CDTSpecial Weather StatementJANLowndes31 min

Nearby

Tornado Warnings in Mississippi, 2012Every tornado warning in 2012Tornadoes in 2012

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.