Alert archive / Mississippi / Special Weather Statements in 2012

Special Weather Statement, NWS Jackson, MS

August 6, 2012Madison County, Mississippi

NWS Jackson, MS issued this special weather statement at Aug 6, 2012, 2:20 PM CDT for Madison County, Mississippi. It was in force for 30 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 6, 2012, 2:20 PM CDT (19:20 UTC)
Expired: Aug 6, 2012, 2:50 PM CDT
In force: 30 min
Issued by: NWS Jackson, MS

County Madison County, MS

The radar

The Jackson/Brandon,MS radar (KDGX), 48 km from the middle of the area, began a volume at 19:22 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, 7.3 hours before the alert went out and 47 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: 1923 J/kg
Mixed-layer CIN: -25 J/kg
Mixed-layer LCL: 869 m above ground
0-6 km bulk shear: 10 kt
0-1 km storm-relative helicity: 14 m²/s²
0-3 km storm-relative helicity: 28 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.

388 
WWUS84 KJAN 061920
SPSJAN
MSZ043-061950-
MADISON MS-
220 PM CDT MON AUG 6 2012

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
220 PM CDT MON AUG 6 2012

A STRONG THUNDERSTORM CAPABLE OF PRODUCING 40 TO 50 MPH WINDS WAS
LOCATED OVER CAMDEN AT 221 PM CDT...MOVING SOUTHWEST AT 25 MPH.

DANGEROUS CLOUD TO GROUND LIGHTNING IS ALSO POSSIBLE WITH THIS STORM.

PEOPLE IN NORTHEASTERN MADISON COUNTY SHOULD MONITOR THIS STORM
CLOSELY.

LAT...LON 3258 8978 3259 8979 3258 8983 3259 8984
      3259 8985 3265 9002 3288 8989 3289 8982
      3288 8973 3274 8972
TIME...MOT...LOC 1921Z 023DEG 20KT 3275 8982

$$

BK

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 6, 11:16 AM CDT	Special Weather Statement	JAN	Lowndes	59 min
Aug 6, 11:27 AM CDT	Special Weather Statement	JAN	Webster	43 min
Aug 6, 12:00 PM CDT	Special Weather Statement	JAN	Choctaw	60 min
Aug 6, 12:55 PM CDT	Special Weather Statement	JAN	Attala	60 min
Aug 6, 1:10 PM CDT	Special Weather Statement	JAN	Jefferson Davis	60 min
Aug 6, 1:16 PM CDT	Special Weather Statement	JAN	Holmes	59 min
Aug 6, 1:48 PM CDT	Special Weather Statement	JAN	Newton	62 min
Aug 6, 2:17 PM CDT	Special Weather Statement	JAN	Leake	58 min
Aug 6, 2:26 PM CDT	Special Weather Statement	JAN	Jasper	29 min
Aug 6, 2:40 PM CDT	Severe Thunderstorm Warning	JAN	Jasper, Jones, Smith	50 min
Aug 6, 2:53 PM CDT	Special Weather Statement	JAN	Madison	27 min
Aug 6, 3:17 PM CDT	Special Weather Statement	JAN	Scott	28 min
Aug 6, 3:25 PM CDT	Severe Thunderstorm Warning	JAN	Rankin	50 min
Aug 6, 3:37 PM CDT	Special Weather Statement	JAN	Jones	38 min
Aug 6, 3:40 PM CDT	Severe Thunderstorm Warning	JAN	Forrest, Jones	50 min
Aug 6, 3:53 PM CDT	Severe Thunderstorm Warning	JAN	Hinds, Rankin	52 min
Aug 6, 3:59 PM CDT	Special Weather Statement	JAN	Forrest	31 min
Aug 6, 4:12 PM CDT	Flash Flood Warning	JAN	Hinds, Rankin	113 min
Aug 6, 4:14 PM CDT	Severe Thunderstorm Warning	JAN	Forrest, Lamar	61 min
Aug 6, 4:28 PM CDT	Severe Thunderstorm Warning	JAN	Copiah, Hinds, Rankin, Simpson	35 min
Aug 6, 5:02 PM CDT	Special Weather Statement	JAN	Leflore	28 min
Aug 6, 5:06 PM CDT	Special Weather Statement	JAN	Copiah	29 min
Aug 6, 5:11 PM CDT	Special Weather Statement	JAN	Sunflower	29 min
Aug 6, 5:16 PM CDT	Severe Thunderstorm Warning	JAN	Humphreys, Sunflower, Washington	44 min
Aug 6, 5:23 PM CDT	Special Weather Statement	JAN	Warren	32 min
Aug 6, 5:33 PM CDT	Severe Thunderstorm Warning	JAN	Leflore, Sunflower	42 min
Aug 6, 6:05 PM CDT	Severe Thunderstorm Warning	JAN	Holmes, Humphreys, Leflore, Sunflower	40 min
Aug 6, 6:44 PM CDT	Severe Thunderstorm Warning	JAN	Franklin	46 min
Aug 6, 6:47 PM CDT	Special Weather Statement	JAN	Sharkey	28 min
Aug 6, 4:39 PM CDT	Special Weather Statement	JAN	West Carroll	31 min
Aug 6, 5:36 PM CDT	Special Weather Statement	JAN	Tensas	29 min

Nearby

Special Weather Statements in Mississippi, 2012 Every special weather statement 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.