Alert archive / Mississippi / Special Weather Statements in 2012

Special Weather Statement, NWS Jackson, MS

August 3, 2012Jones County, Mississippi

NWS Jackson, MS issued this special weather statement at Aug 3, 2012, 7:39 PM CDT for Jones County, Mississippi. It was in force for 31 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 3, 2012, 7:39 PM CDT (00:39 UTC)
Expired
Aug 3, 2012, 8:10 PM CDT
In force
31 min
Issued by
NWS Jackson, MS

County Jones County, MS

The radar

The Jackson/Brandon,MS radar (KDGX), 82 km from the middle of the area, began a volume at 00:38 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 00:00Z, 0.7 hours before the alert went out and 92 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 2012-08-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2397 joules per kilogram.LCLEL10008507005003002001001 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 2012-08-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -12 square meters per square second.1939Sfc1 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
2397 J/kg
Mixed-layer CIN
-6 J/kg
Mixed-layer LCL
1444 m above ground
0-6 km bulk shear
21 kt
0-1 km storm-relative helicity
-12 m²/s²
0-3 km storm-relative helicity
46 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

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

531 
WWUS84 KJAN 040039
SPSJAN
MSZ056-057-065-066-040110-
SMITH MS-JONES MS-JASPER MS-COVINGTON MS-
739 PM CDT FRI AUG 3 2012

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
739 PM CDT FRI AUG 3 2012

A STRONG THUNDERSTORM CAPABLE OF PRODUCING PEA TO DIME SIZE HAIL AND
40 TO 50 MPH WINDS WAS LOCATED OVER STRINGER AT 740 PM CDT...MOVING
SOUTHWEST AT 10 MPH.

VERY HEAVY RAIN ALONG WITH CONTINUOUS CLOUD TO GROUND LIGHTNING ARE
ALSO POSSIBLE WITH THIS STORM.

PEOPLE IN NORTHEASTERN COVINGTON...SOUTHWESTERN JASPER...NORTHWESTERN
JONES AND SOUTHEASTERN SMITH COUNTIES SHOULD MONITOR THIS STORM
CLOSELY.

LAT...LON 3166 8931 3183 8953 3196 8932 3189 8913
TIME...MOT...LOC 0040Z 037DEG 10KT 3186 8927

$$

JA

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 3, 7:16 PM CDTFlash Flood WarningJANCovington, Simpson, Smith119 min
Aug 4, 2:48 PM CDTSpecial Weather StatementJANLamar27 min
Aug 4, 3:06 PM CDTSpecial Weather StatementJANMarion29 min
Aug 4, 3:55 PM CDTSpecial Weather StatementJANForrest30 min
Aug 4, 4:21 PM CDTSpecial Weather StatementJANCovington29 min
Aug 4, 4:50 PM CDTSpecial Weather StatementJANCovington30 min
Aug 4, 5:45 PM CDTSpecial Weather StatementJANLeake, Scott30 min
Aug 4, 6:04 PM CDTSpecial Weather StatementJANSmith31 min
Aug 4, 6:26 PM CDTSpecial Weather StatementJANNewton39 min
Aug 4, 6:34 PM CDTSpecial Weather StatementJANSimpson41 min
Aug 4, 6:36 PM CDTSpecial Weather StatementJANSmith29 min
Aug 4, 6:44 PM CDTSevere Thunderstorm WarningJANJasper, Newton32 min

Nearby

Special Weather Statements in Mississippi, 2012Every 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.