Alert archive / Mississippi / Tornado Warnings in 2004

Tornado Warning 111, NWS Jackson, MS

December 9, 2004Covington County, Jefferson Davis County, Mississippi

NWS Jackson, MS issued this tornado warning at Dec 9, 2004, 6:34 AM CST for Covington County, Jefferson Davis County, Mississippi. It was in force for 26 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: Dec 9, 2004, 6:34 AM CST (12:34 UTC)
Expired: Dec 9, 2004, 7:00 AM CST
In force: 26 min
Issued by: NWS Jackson, MS
Area: Counties, with a storm outline in the text

Counties Covington County, MS, Jefferson Davis County, MS

The radar

The Jackson/Brandon,MS radar (KDGX), 90 km from the middle of the area, began a volume at 12:35 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, 0.6 hours before the alert went out and 98 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: 80 J/kg
Mixed-layer CIN: -68 J/kg
Mixed-layer LCL: 552 m above ground
0-6 km bulk shear: 62 kt
0-1 km storm-relative helicity: 81 m²/s²
0-3 km storm-relative helicity: 73 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -0.1

Open this sounding in Storm Lab

The text

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

000 
WFUS54 KJAN 091234
TORJAN
MSC031-065-091300-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE JACKSON MS
634 AM CST THU DEC 9 2004

THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A

* TORNADO WARNING FOR...
  JEFFERSON DAVIS COUNTY IN SOUTH CENTRAL MISSISSIPPI
  COVINGTON COUNTY IN SOUTHEAST MISSISSIPPI
  THIS INCLUDES THE CITY OF COLLINS

* UNTIL 700 AM CST

* AT 634 AM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 12 MILES SOUTH
  OF COLLINS...MOVING EAST AT 45 MPH.

* THE TORNADO IS EXPECTED TO BE NEAR...
  9 MILES SOUTH OF COLLINS BY 640 AM CST

SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN INTERIOR
HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO COVER
YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS.

IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE
NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

LAT...LON 3155 8971 3145 8966 3148 8941 3172 8942

$$

CME

The office that day

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

Issued	Product	Office	Counties	Lasted
Dec 8, 9:54 PM CST	Flash Flood Warning	JAN	Kemper	3 hr
Dec 8, 11:57 PM CST	Severe Thunderstorm Warning	JAN	Warren	48 min
Dec 9, 12:35 AM CST	Severe Thunderstorm Warning	JAN	Adams	40 min
Dec 9, 12:40 AM CST	Flash Flood Warning	JAN	Adams	3 hr
Dec 9, 12:49 AM CST	Flash Flood Warning	JAN	Warren	3 hr
Dec 9, 2:06 AM CST	Flash Flood Warning	JAN	Franklin	3 hr
Dec 9, 2:22 AM CST	Flash Flood Warning	JAN	Lincoln	4 hr
Dec 9, 2:27 AM CST	Flash Flood Warning	JAN	Rankin	4 hr
Dec 9, 2:44 AM CST	Flash Flood Warning	JAN	Lowndes, Noxubee, Oktibbeha, Winston	4 hr
Dec 9, 3:28 AM CST	Flash Flood Warning	JAN	Simpson	3 hr
Dec 9, 3:29 AM CST	Severe Thunderstorm Warning	JAN	Simpson	46 min
Dec 9, 3:40 AM CST	Flash Flood Warning	JAN	Madison	80 min
Dec 9, 3:45 AM CST	Severe Thunderstorm Warning	JAN	Jefferson Davis, Lawrence	45 min
Dec 9, 3:57 AM CST	Severe Thunderstorm Warning	JAN	Smith	33 min
Dec 9, 4:02 AM CST	Tornado Warning	JAN	Smith	28 min
Dec 9, 4:10 AM CST	Flash Flood Warning	JAN	Kemper, Neshoba, Newton	3 hr
Dec 9, 4:25 AM CST	Tornado Warning	JAN	Newton, Scott	50 min
Dec 9, 4:27 AM CST	Severe Thunderstorm Warning	JAN	Jasper	28 min
Dec 9, 4:39 AM CST	Severe Thunderstorm Warning	JAN	Covington	36 min
Dec 9, 4:58 AM CST	Tornado Warning	JAN	Jasper	47 min
Dec 9, 5:05 AM CST	Severe Thunderstorm Warning	JAN	Lauderdale	55 min
Dec 9, 5:19 AM CST	Severe Thunderstorm Warning	JAN	Lincoln	36 min
Dec 9, 5:53 AM CST	Tornado Warning	JAN	Noxubee	22 min
Dec 9, 6:20 AM CST	Severe Thunderstorm Warning	JAN	Jefferson Davis, Marion	40 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.