Alert archive / Mississippi / Severe Thunderstorm Warnings in 2003

Severe Thunderstorm Warning 710, NWS Jackson, MS

August 21, 2003Franklin County, Mississippi

NWS Jackson, MS issued this severe thunderstorm warning at Aug 21, 2003, 5:27 PM CDT for Franklin County, Mississippi. It was in force for 43 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 21, 2003, 5:27 PM CDT (22:27 UTC)
Expired: Aug 21, 2003, 6:10 PM CDT
In force: 43 min
Issued by: NWS Jackson, MS
Area: Counties, with a storm outline in the text

County Franklin County, MS

The nearest sounding before it

Jackson, MS (KJAN), launched 12:00Z, 10.5 hours before the alert went out and 124 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: 1410 J/kg
Mixed-layer CIN: -99 J/kg
Mixed-layer LCL: 927 m above ground
0-6 km bulk shear: 18 kt
0-1 km storm-relative helicity: 33 m²/s²
0-3 km storm-relative helicity: -2 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.

000 
WUUS54 KJAN 212227
SVRJAN
MSC037-212310-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE JACKSON MS
527 PM CDT THU AUG 21 2003

THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  FRANKLIN COUNTY IN SOUTHWEST MISSISSIPPI

* UNTIL 610 PM CDT

* AT 527 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A 
 SEVERE THUNDERSTORM 6 MILES SOUTHEAST OF ROXIE...MOVING SOUTHEAST   
 AT 30 MPH.

* THE SEVERE THUNDERSTORM WILL...
  BE NEAR MEADVILLE AT 530 PM CDT
  BE NEAR BUDE AT 535 PM CDT

HAIL TO THE SIZE OF NICKELS...DAMAGING WINDS TO 60 MPH AND TORRENTIAL 
RAIN ARE EXPECTED WITH THIS STORM. TAKE COVER IN A SUBSTANTIAL 
SHELTER WHILE THE STORM PASSES.

LAT...LON 3160 9102 3139 9114 3135 9093 3150 9070

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 20, 7:58 PM CDT	Severe Thunderstorm Warning	JAN	Claiborne, Copiah	42 min
Aug 21, 2:09 PM CDT	Severe Thunderstorm Warning	JAN	Issaquena, Washington	46 min
Aug 21, 2:37 PM CDT	Severe Thunderstorm Warning	JAN	Carroll	48 min
Aug 21, 3:47 PM CDT	Severe Thunderstorm Warning	JAN	Holmes	43 min
Aug 21, 5:01 PM CDT	Severe Thunderstorm Warning	JAN	Yazoo	44 min
Aug 21, 5:09 PM CDT	Severe Thunderstorm Warning	JAN	Adams	41 min
Aug 21, 5:49 PM CDT	Severe Thunderstorm Warning	JAN	Bolivar	46 min

Nearby

Severe Thunderstorm Warnings in Mississippi, 2003 Every severe thunderstorm warning in 2003

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.