Alert archive / Mississippi / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 413, NWS Jackson, MS

August 3, 2002Madison County, Mississippi

NWS Jackson, MS issued this severe thunderstorm warning at Aug 3, 2002, 5:18 PM CDT for Madison County, Mississippi. It was in force for 47 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Aug 3, 2002, 5:18 PM CDT (22:18 UTC)
Expired: Aug 3, 2002, 6:05 PM CDT
In force: 47 min
Issued by: NWS Jackson, MS
Area: Counties, with a storm outline in the text

County Madison County, MS

What was reported inside it

Time	Report	Where	Remark
Aug 3, 5:45 PM CDT	Thunderstorm Wind	Canton, MS	Several powerlines were blown down in the city.

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The nearest sounding before it

Jackson, MS (KJAN), launched 12:00Z, 10.3 hours before the alert went out and 32 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: 1674 J/kg
Mixed-layer CIN: -56 J/kg
Mixed-layer LCL: 1113 m above ground
0-6 km bulk shear: 19 kt
0-1 km storm-relative helicity: 4 m²/s²
0-3 km storm-relative helicity: 35 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -0.2

Open this sounding in Storm Lab

The text

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

689 
WUUS54 KJAN 032218
SVRJAN
MSC089-032305-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE JACKSON MS
518 PM CDT SAT AUG 3 2002

THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  MADISON COUNTY IN CENTRAL MISSISSIPPI

* UNTIL 605 PM CDT

* AT 518 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 3 MILES EAST OF CANTON...MOVING WEST AT 25 MPH.

* THE SEVERE THUNDERSTORM WILL...
  BE NEAR CANTON AT 525 PM CDT

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

LAT...LON 3257 8988 3273 8989 3263 9028 3251 9031

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 2, 8:56 PM CDT	Severe Thunderstorm Warning	JAN	Copiah, Lincoln	44 min
Aug 3, 3:29 PM CDT	Severe Thunderstorm Warning	JAN	Noxubee	46 min
Aug 3, 5:17 PM CDT	Severe Thunderstorm Warning	JAN	Sunflower	43 min
Aug 3, 5:24 PM CDT	Severe Thunderstorm Warning	JAN	Rankin	41 min
Aug 3, 5:57 PM CDT	Severe Thunderstorm Warning	JAN	Smith	23 min
Aug 3, 6:12 PM CDT	Severe Thunderstorm Warning	JAN	Clarke	28 min
Aug 3, 6:34 PM CDT	Severe Thunderstorm Warning	JAN	Scott	46 min
Aug 3, 6:39 PM CDT	Severe Thunderstorm Warning	JAN	Leake	41 min

Nearby

Severe Thunderstorm Warnings in Mississippi, 2002 Every severe thunderstorm warning in 2002

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.