Alert archive / Mississippi / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 521, NWS Jackson, MS

December 19, 2002Franklin County, Lincoln County, Mississippi

NWS Jackson, MS issued this severe thunderstorm warning at Dec 19, 2002, 10:45 AM CST for Franklin County, Lincoln County, Mississippi. It was in force for 45 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: Dec 19, 2002, 10:45 AM CST (16:45 UTC)
Expired: Dec 19, 2002, 11:30 AM CST
In force: 45 min
Issued by: NWS Jackson, MS
Area: Counties, with a storm outline in the text

Counties Franklin County, MS, Lincoln County, MS

What was reported inside it

Time	Report	Where	Remark
Dec 19, 11:15 AM CST	Thunderstorm Wind 60 EG	Brookhaven, MS	Severe thunderstorm winds blew down numerous trees and powerlines across the area. The downed trees blocked 30 to 40 area roads.

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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Dec 19, 6:30 AM CST	Tornado Watch	SPC	6 hr

The nearest sounding before it

Jackson, MS (KJAN), launched 12:00Z, 4.8 hours before the alert went out and 102 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: 279 J/kg
Mixed-layer CIN: -16 J/kg
Mixed-layer LCL: 635 m above ground
0-6 km bulk shear: 67 kt
0-1 km storm-relative helicity: 309 m²/s²
0-3 km storm-relative helicity: 360 m²/s²
Significant tornado parameter: 0.6
Supercell composite: 2.2

Open this sounding in Storm Lab

The text

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

000 
WUUS54 KJAN 191645
SVRJAN
MSC037-085-191730-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE JACKSON MS
1044 AM CST THU DEC 19 2002

THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  FRANKLIN COUNTY IN SOUTHWEST MISSISSIPPI
  LINCOLN COUNTY IN SOUTH CENTRAL MISSISSIPPI

* UNTIL 1130 AM CST

* AT 1044 AM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 14 MILES WEST OF BROOKHAVEN...MOVING NORTHEAST
  AT 40 MPH.

* THE SEVERE THUNDERSTORM WILL...
  BE NEAR BROOKHAVEN AT 1050 AM CST

A TORNADO WATCH IS ALSO IN EFFECT. TORNADOES CAN DEVELOP SUDDENLY
FROM SEVERE THUNDERSTORMS.

LAT...LON 3155 9091 3138 9075 3157 9029 3171 9050

The office that day

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

Issued	Product	Office	Counties	Lasted
Dec 19, 2:09 AM CST	Flash Flood Warning	JAN	Bolivar	4 hr
Dec 19, 2:37 AM CST	Severe Thunderstorm Warning	JAN	Bolivar	58 min
Dec 19, 6:00 AM CST	Flash Flood Warning	JAN	Bolivar	2 hr
Dec 19, 8:31 AM CST	Severe Thunderstorm Warning	JAN	Humphreys, Sunflower	24 min
Dec 19, 8:38 AM CST	Severe Thunderstorm Warning	JAN	Adams	47 min
Dec 19, 9:09 AM CST	Severe Thunderstorm Warning	JAN	Warren	46 min
Dec 19, 9:11 AM CST	Severe Thunderstorm Warning	JAN	Jefferson	29 min
Dec 19, 9:53 AM CST	Severe Thunderstorm Warning	JAN	Claiborne, Copiah	27 min
Dec 19, 10:07 AM CST	Tornado Warning	JAN	Yazoo	28 min
Dec 19, 10:11 AM CST	Tornado Warning	JAN	Simpson	19 min
Dec 19, 10:20 AM CST	Severe Thunderstorm Warning	JAN	Copiah, Hinds	45 min
Dec 19, 10:36 AM CST	Tornado Warning	JAN	Yazoo	29 min
Dec 19, 10:56 AM CST	Severe Thunderstorm Warning	JAN	Rankin	44 min
Dec 19, 10:58 AM CST	Tornado Warning	JAN	Attala, Holmes	32 min
Dec 19, 11:00 AM CST	Tornado Warning	JAN	Lincoln	30 min
Dec 19, 11:17 AM CST	Tornado Warning	JAN	Copiah, Lawrence	28 min
Dec 19, 11:32 AM CST	Tornado Warning	JAN	Simpson	43 min
Dec 19, 11:37 AM CST	Severe Thunderstorm Warning	JAN	Attala	28 min
Dec 19, 11:43 AM CST	Severe Thunderstorm Warning	JAN	Leake, Scott	42 min
Dec 19, 12:20 PM CST	Tornado Warning	JAN	Simpson, Smith	30 min
Dec 19, 12:23 PM CST	Severe Thunderstorm Warning	JAN	Jefferson Davis	27 min
Dec 19, 12:25 PM CST	Severe Thunderstorm Warning	JAN	Scott	30 min
Dec 19, 12:54 PM CST	Severe Thunderstorm Warning	JAN	Newton	31 min
Dec 19, 1:14 PM CST	Severe Thunderstorm Warning	JAN	Marion	46 min
Dec 19, 1:17 PM CST	Severe Thunderstorm Warning	JAN	Jasper	43 min
Dec 19, 1:17 PM CST	Tornado Warning	JAN	Newton	28 min
Dec 19, 1:20 PM CST	Tornado Warning	JAN	Lamar, Marion	30 min
Dec 19, 1:22 PM CST	Severe Thunderstorm Warning	JAN	Covington	43 min
Dec 19, 1:30 PM CST	Tornado Warning	JAN	Lauderdale	25 min
Dec 19, 1:39 PM CST	Severe Thunderstorm Warning	JAN	Jones	61 min
Dec 19, 1:49 PM CST	Severe Thunderstorm Warning	JAN	Lamar	26 min
Dec 19, 1:55 PM CST	Severe Thunderstorm Warning	JAN	Lauderdale	30 min
Dec 19, 2:00 PM CST	Severe Thunderstorm Warning	JAN	Forrest	40 min
Dec 19, 2:14 PM CST	Severe Thunderstorm Warning	JAN	Clarke	31 min
Dec 19, 2:25 PM CST	Severe Thunderstorm Warning	JAN	Lauderdale	35 min
Dec 19, 2:39 PM CST	Severe Thunderstorm Warning	JAN	Forrest	31 min
Dec 19, 2:45 PM CST	Severe Thunderstorm Warning	JAN	Clarke, Lauderdale	30 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.