Alert archive / Mississippi / Tornado Warnings in 2001

Tornado Warning 75, NWS Jackson, MS

October 11, 2001Jefferson Davis County, Mississippi

NWS Jackson, MS issued this tornado warning at Oct 11, 2001, 5:20 PM CDT for Jefferson Davis County, Mississippi. It was in force for 40 min. 1 report came from inside the area while it was in force.

The area

The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties, with what was reported inside it.

The facts

Issued: Oct 11, 2001, 5:20 PM CDT (22:20 UTC)
Expired: Oct 11, 2001, 6:00 PM CDT
In force: 40 min
Issued by: NWS Jackson, MS
Area: Whole counties; the outline is the Mesonet’s reconstruction

County Jefferson Davis County, MS

What was reported inside it

Time	Report	Where	Remark
Oct 11, 5:30 PM CDT	Hail 0.75	Bassfield, MS

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
Oct 11, 1:15 PM CDT	Tornado Watch	SPC	5 hr

The nearest sounding before it

Jackson, MS (KJAN), launched 12:00Z, 10.3 hours before the alert went out and 96 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: 5 J/kg
Mixed-layer CIN: -125 J/kg
Mixed-layer LCL: 653 m above ground
0-6 km bulk shear: 33 kt
0-1 km storm-relative helicity: 165 m²/s²
0-3 km storm-relative helicity: 230 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

014 
WFUS54 KJAN 112220
TORJAN
MSC065-112300-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE JACKSON MS
520 PM CDT THU OCT 11 2001

THE NATIONAL WEATHER SERVICE HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHERN JEFFERSON DAVIS COUNTY IN SOUTH CENTRAL MISSISSIPPI

* UNTIL 600 PM CDT

* AT 520 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  TORNADO 6 MILES SOUTHWEST OF BASSFIELD...OR ABOUT 12 MILES NORTH OF
  COLUMBIA...MOVING NORTHEAST AT 20 MPH.

* THE TORNADO IS EXPECTED TO...
  BE NEAR BASSFIELD AT 535 PM CDT

IN ADDITION TO THE THREAT OF A TORNADO...STRONG WINDS CAN BE 
EXPECTED. GO TO A SAFE PLACE NOW

IF NO UNDERGROUND SHELTER IS AVAILABLE...GO TO AN INTERIOR ROOM ON
THE LOWEST FLOOR. MOBILE HOMES AND VEHICLES ARE NOT SAFE.


LAT...LON 3144 8997 3139 8987 3147 8962 3165 8978

The office that day

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

Issued	Product	Office	Counties	Lasted
Oct 11, 9:54 AM CDT	Severe Thunderstorm Warning	JAN	Bolivar	36 min
Oct 11, 12:48 PM CDT	Severe Thunderstorm Warning	JAN	Warren	57 min
Oct 11, 1:01 PM CDT	Tornado Warning	JAN	Warren	44 min
Oct 11, 1:24 PM CDT	Tornado Warning	JAN	Issaquena	51 min
Oct 11, 1:33 PM CDT	Severe Thunderstorm Warning	JAN	Sunflower, Washington	42 min
Oct 11, 2:15 PM CDT	Severe Thunderstorm Warning	JAN	Issaquena, Sharkey	45 min
Oct 11, 2:30 PM CDT	Tornado Warning	JAN	Yazoo	45 min
Oct 11, 2:49 PM CDT	Tornado Warning	JAN	Humphreys	41 min
Oct 11, 2:57 PM CDT	Tornado Warning	JAN	Holmes	48 min
Oct 11, 3:06 PM CDT	Severe Thunderstorm Warning	JAN	Jefferson Davis	34 min
Oct 11, 3:10 PM CDT	Severe Thunderstorm Warning	JAN	Jefferson	50 min
Oct 11, 3:13 PM CDT	Tornado Warning	JAN	Yazoo	47 min
Oct 11, 3:21 PM CDT	Severe Thunderstorm Warning	JAN	Hinds, Madison	39 min
Oct 11, 3:37 PM CDT	Tornado Warning	JAN	Attala	43 min
Oct 11, 3:42 PM CDT	Severe Thunderstorm Warning	JAN	Claiborne, Copiah	48 min
Oct 11, 3:44 PM CDT	Severe Thunderstorm Warning	JAN	Franklin	46 min
Oct 11, 4:00 PM CDT	Severe Thunderstorm Warning	JAN	Leake	60 min
Oct 11, 4:04 PM CDT	Severe Thunderstorm Warning	JAN	Rankin	26 min
Oct 11, 4:17 PM CDT	Severe Thunderstorm Warning	JAN	Attala	43 min
Oct 11, 4:27 PM CDT	Severe Thunderstorm Warning	JAN	Copiah	43 min
Oct 11, 4:38 PM CDT	Severe Thunderstorm Warning	JAN	Franklin, Lincoln	67 min
Oct 11, 4:39 PM CDT	Severe Thunderstorm Warning	JAN	Choctaw, Winston	51 min
Oct 11, 4:52 PM CDT	Severe Thunderstorm Warning	JAN	Rankin	23 min
Oct 11, 4:58 PM CDT	Severe Thunderstorm Warning	JAN	Scott	47 min
Oct 11, 5:06 PM CDT	Severe Thunderstorm Warning	JAN	Clay	39 min
Oct 11, 5:11 PM CDT	Severe Thunderstorm Warning	JAN	Oktibbeha	64 min
Oct 11, 5:16 PM CDT	Severe Thunderstorm Warning	JAN	Neshoba	44 min
Oct 11, 5:29 PM CDT	Severe Thunderstorm Warning	JAN	Noxubee, Winston	61 min
Oct 11, 5:53 PM CDT	Severe Thunderstorm Warning	JAN	Lowndes	67 min
Oct 11, 6:00 PM CDT	Tornado Warning	JAN	Jefferson Davis	20 min
Oct 11, 6:28 PM CDT	Severe Thunderstorm Warning	JAN	Noxubee	32 min

Nearby

Tornado Warnings in Mississippi, 2001 Every tornado warning in 2001 Tornadoes in 2001

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.