Alert archive / Mississippi / Tornado Warnings in 2004

Tornado Warning 49, NWS Jackson, MS

October 18, 2004Clay County, Mississippi

NWS Jackson, MS issued this tornado warning at Oct 18, 2004, 7:31 PM CDT for Clay County, Mississippi. It was in force for 14 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: Oct 18, 2004, 7:31 PM CDT (00:31 UTC)
Expired: Oct 18, 2004, 7:45 PM CDT
In force: 14 min
Issued by: NWS Jackson, MS
Area: Counties, with a storm outline in the text

County Clay County, MS

The radar

The Columbus AFB radar (KGWX), 50 km from the middle of the area, began a volume at 00:32 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
Oct 18, 7:10 PM CDT	Tornado Watch	SPC	4 hr

The nearest sounding before it

Little Rock, AR (KLZK), launched 00:00Z, 0.5 hours before the alert went out and 163 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: 3284 J/kg
Mixed-layer CIN: -9 J/kg
Mixed-layer LCL: 1041 m above ground
0-6 km bulk shear: 37 kt
0-1 km storm-relative helicity: 151 m²/s²
0-3 km storm-relative helicity: 289 m²/s²
Significant tornado parameter: 4.1
Supercell composite: 18.9

Open this sounding in Storm Lab

The text

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

000 
WFUS54 KJAN 190031
TORJAN
MSC025-190045-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE JACKSON MS
730 PM CDT MON OCT 18 2004

THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A

* TORNADO WARNING FOR...
  CLAY COUNTY IN NORTHEAST MISSISSIPPI

* UNTIL 745 PM CDT

* AT 730 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO OVER CLAY
  COUNTY...OR ABOUT 9 MILES NORTHWEST OF WEST POINT...MOVING EAST AT
  25 MPH.

* THE TORNADO IS EXPECTED TO BE NEAR...
  RURAL CLAY COUNTY AT 740 PM CDT

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...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 3373 8894 3363 8888 3364 8862 3377 8871

$$

CAB

The office that day

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

Issued	Product	Office	Counties	Lasted
Oct 18, 7:00 PM CDT	Tornado Warning	JAN	Clay, Webster	30 min
Oct 19, 10:15 AM CDT	Severe Thunderstorm Warning	JAN	Holmes	45 min
Oct 19, 2:04 PM CDT	Severe Thunderstorm Warning	JAN	Carroll, Montgomery	56 min
Oct 19, 3:05 PM CDT	Severe Thunderstorm Warning	JAN	Grenada	25 min
Oct 19, 3:06 PM CDT	Severe Thunderstorm Warning	JAN	Clay	24 min
Oct 19, 3:10 PM CDT	Tornado Warning	JAN	Attala, Holmes, Madison, Yazoo	35 min
Oct 19, 3:46 PM CDT	Severe Thunderstorm Warning	JAN	Kemper, Neshoba	44 min
Oct 19, 3:59 PM CDT	Tornado Warning	JAN	Leake, Neshoba	46 min
Oct 19, 4:28 PM CDT	Severe Thunderstorm Warning	JAN	Kemper	47 min
Oct 19, 4:43 PM CDT	Severe Thunderstorm Warning	JAN	Neshoba	17 min
Oct 19, 4:46 PM CDT	Severe Thunderstorm Warning	JAN	Lauderdale	44 min
Oct 19, 6:54 PM CDT	Severe Thunderstorm Warning	JAN	Newton	51 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.