Alert archive / Mississippi / Tornado Warnings in 2004

Tornado Warning 37, NWS Jackson, MS

April 29, 2004Simpson County, Mississippi

NWS Jackson, MS issued this tornado warning at Apr 29, 2004, 9:28 PM CDT for Simpson County, Mississippi. It was in force for 77 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: Apr 29, 2004, 9:28 PM CDT (02:28 UTC)
Expired: Apr 29, 2004, 10:45 PM CDT
In force: 77 min
Issued by: NWS Jackson, MS
Area: Counties, with a storm outline in the text

County Simpson County, MS

The radar

The Jackson/Brandon,MS radar (KDGX), 32 km from the middle of the area, began a volume at 02:27 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 watch it was issued in

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

Issued	Product	Office	Lasted
Apr 29, 9:25 PM CDT	Tornado Watch	SPC	5 hr

The nearest sounding before it

Jackson, MS (KJAN), launched 00:00Z, 2.5 hours before the alert went out and 37 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: 851 J/kg
Mixed-layer CIN: -3 J/kg
Mixed-layer LCL: 851 m above ground
0-6 km bulk shear: 52 kt
0-1 km storm-relative helicity: 109 m²/s²
0-3 km storm-relative helicity: 181 m²/s²
Significant tornado parameter: 0.6
Supercell composite: 2.8

Open this sounding in Storm Lab

The text

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

000 
WFUS54 KJAN 300228
TORJAN
MSC127-300345-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE JACKSON MS
928 PM CDT THU APR 29 2004

THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A

* TORNADO WARNING FOR...
  SIMPSON COUNTY IN CENTRAL MISSISSIPPI

* UNTIL 1045 PM CDT

* AT 927 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A 
  TORNADO 11 MILES NORTHWEST OF HARRISVILLE...MOVING EAST AT 25 MPH.

* THE TORNADO IS EXPECTED TO BE NEAR...
  HARRISVILLE BY 955 PM CDT
  MENDENHALL BY 1020 PM CDT
  MAGEE BY 1030 PM CDT

LARGE HAIL AND STRONG STRAIGHT LINE WINDS ARE ALSO EXPECTED.

IF YOU ARE NEAR THE PATH OF THIS TORNADO...TAKE COVER IN AN INTERIOR
ROOM ON THE LOWEST FLOOR. PROTECT YOUR HEAD AND BODY FROM FLYING
DEBRIS.

LAT...LON 3205 9022 3198 9018 3185 8971 3203 8969

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 29, 7:00 PM CDT	Severe Thunderstorm Warning	JAN	Covington, Jones, Marion	45 min
Apr 29, 7:08 PM CDT	Severe Thunderstorm Warning	JAN	Holmes	42 min
Apr 29, 7:13 PM CDT	Severe Thunderstorm Warning	JAN	Claiborne	57 min
Apr 29, 7:24 PM CDT	Severe Thunderstorm Warning	JAN	Humphreys, Sharkey	46 min
Apr 29, 7:27 PM CDT	Severe Thunderstorm Warning	JAN	Hinds	78 min
Apr 29, 7:36 PM CDT	Tornado Warning	JAN	Claiborne	44 min
Apr 29, 7:42 PM CDT	Severe Thunderstorm Warning	JAN	Warren	43 min
Apr 29, 7:47 PM CDT	Tornado Warning	JAN	Yazoo	43 min
Apr 29, 7:49 PM CDT	Severe Thunderstorm Warning	JAN	Attala	46 min
Apr 29, 8:02 PM CDT	Severe Thunderstorm Warning	JAN	Jasper, Newton	43 min
Apr 29, 8:11 PM CDT	Tornado Warning	JAN	Hinds	59 min
Apr 29, 8:27 PM CDT	Severe Thunderstorm Warning	JAN	Lauderdale	28 min
Apr 29, 8:28 PM CDT	Tornado Warning	JAN	Attala, Choctaw	57 min
Apr 29, 8:31 PM CDT	Tornado Warning	JAN	Yazoo	44 min
Apr 29, 8:37 PM CDT	Severe Thunderstorm Warning	JAN	Holmes	58 min
Apr 29, 8:47 PM CDT	Tornado Warning	JAN	Copiah	48 min
Apr 29, 8:58 PM CDT	Severe Thunderstorm Warning	JAN	Holmes	37 min
Apr 29, 9:03 PM CDT	Severe Thunderstorm Warning	JAN	Rankin	57 min
Apr 29, 9:11 PM CDT	Tornado Warning	JAN	Hinds, Rankin	59 min
Apr 29, 9:12 PM CDT	Tornado Warning	JAN	Yazoo	58 min
Apr 29, 9:36 PM CDT	Severe Thunderstorm Warning	JAN	Attala, Madison	44 min
Apr 29, 9:48 PM CDT	Severe Thunderstorm Warning	JAN	Leake	62 min
Apr 29, 9:53 PM CDT	Severe Thunderstorm Warning	JAN	Carroll	27 min
Apr 29, 10:11 PM CDT	Severe Thunderstorm Warning	JAN	Rankin	39 min

Nearby

Tornado Warnings in Mississippi, 2004 Every tornado warning in 2004 Tornadoes in 2004

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.