Alert archive / Mississippi / Special Weather Statements in 2014

Special Weather Statement, NWS Jackson, MS

August 7, 2014Jasper County, Mississippi

NWS Jackson, MS issued this special weather statement at Aug 7, 2014, 5:21 PM CDT for Jasper County, Mississippi. It was in force for 29 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 7, 2014, 5:21 PM CDT (22:21 UTC)
Expired: Aug 7, 2014, 5:50 PM CDT
In force: 29 min
Issued by: NWS Jackson, MS

County Jasper County, MS

The radar

The Jackson/Brandon,MS radar (KDGX), 66 km from the middle of the area, began a volume at 22:24 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, 10.4 hours before the alert went out and 76 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: 1826 J/kg
Mixed-layer CIN: -40 J/kg
Mixed-layer LCL: 1027 m above ground
0-6 km bulk shear: 13 kt
0-1 km storm-relative helicity: 23 m²/s²
0-3 km storm-relative helicity: 25 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.

816 
WWUS84 KJAN 072221
SPSJAN
MSZ056-057-072250-
SMITH MS-JASPER MS-
521 PM CDT THU AUG 7 2014

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
521 PM CDT THU AUG 7 2014

A CLISTER OF STRONG THUNDERSTORMS CAPABLE OF PRODUCING PEA TO DIME 
SIZE HAIL AND 40 TO 50 MPH WINDS WERE LOCATED 4 MILES EAST OF 
PINEVILLE AT 522 PM CDT...MOVING EAST AT 15 MPH.

PEOPLE IN NORTHWESTERN JASPER AND NORTHEASTERN SMITH COUNTIES SHOULD
MONITOR THIS STORM CLOSELY.

LAT...LON 3196 8941 3221 8943 3223 8926 3222 8922
      3207 8912
TIME...MOT...LOC 2222Z 250DEG 11KT 3213 8932

$$

JC

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 7, 1:28 AM CDT	Special Weather Statement	JAN	Lincoln	42 min
Aug 7, 2:28 PM CDT	Special Weather Statement	JAN	Oktibbeha	32 min
Aug 7, 2:44 PM CDT	Special Weather Statement	JAN	Clay	41 min
Aug 7, 2:47 PM CDT	Severe Thunderstorm Warning	JAN	Lowndes, Noxubee, Oktibbeha	43 min
Aug 7, 3:04 PM CDT	Special Weather Statement	JAN	Neshoba	31 min
Aug 7, 3:19 PM CDT	Special Weather Statement	JAN	Lowndes	41 min
Aug 7, 3:39 PM CDT	Special Weather Statement	JAN	Kemper	31 min
Aug 7, 4:19 PM CDT	Special Weather Statement	JAN	Lauderdale	31 min
Aug 7, 5:09 PM CDT	Special Weather Statement	JAN	Clarke	31 min
Aug 7, 6:02 PM CDT	Severe Thunderstorm Warning	JAN	Smith	43 min
Aug 7, 6:31 PM CDT	Special Weather Statement	JAN	Covington	29 min

Nearby

Special Weather Statements in Mississippi, 2014 Every special weather statement in 2014

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.