Alert archive / Mississippi / Tornado Warnings in 2007

Tornado Warning 93, NWS Jackson, MS

October 18, 2007Kemper County, Neshoba County, Mississippi

NWS Jackson, MS issued this tornado warning at Oct 18, 2007, 8:21 PM CDT for Kemper County, Neshoba County, Mississippi. It was in force for 24 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, 2007, 8:21 PM CDT (01:21 UTC)
Expired: Oct 18, 2007, 8:45 PM CDT
In force: 24 min
Issued by: NWS Jackson, MS
Area: Storm-based polygon

Counties Kemper County, MS, Neshoba County, MS

The radar

The Jackson/Brandon,MS radar (KDGX), 122 km from the middle of the area, began a volume at 01:21 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 00:00Z, 1.4 hours before the alert went out and 128 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: 2150 J/kg
Mixed-layer CIN: -5 J/kg
Mixed-layer LCL: 1272 m above ground
0-6 km bulk shear: 42 kt
0-1 km storm-relative helicity: 72 m²/s²
0-3 km storm-relative helicity: 147 m²/s²
Significant tornado parameter: 0.8
Supercell composite: 5.8

Open this sounding in Storm Lab

The text

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

000 
WFUS54 KJAN 190120
TORJAN
MSC069-099-190145-
/O.NEW.KJAN.TO.W.0093.071019T0121Z-071019T0145Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE JACKSON MS
821 PM CDT THU OCT 18 2007

THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHWESTERN KEMPER COUNTY IN EAST CENTRAL MISSISSIPPI...
  THIS INCLUDES THE CITY OF PRESTON...
  EASTERN NESHOBA COUNTY IN EAST CENTRAL MISSISSIPPI...

* UNTIL 845 PM CDT

* AT 821 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
  TORNADO NEAR FORESTDALE...OR ABOUT NEAR PHILADELPHIA...MOVING EAST
  AT 35 MPH.

* THE TORNADO WILL BE NEAR...
  BLUFF SPRINGS BY 835 PM CDT...
  PRESTON BY 840 PM CDT...

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

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 3292 8892 3293 8859 3280 8854 3265 8906
      3282 8914
TIME...MOT...LOC 0121Z 248DEG 31KT 3277 8899

$$

BYB

The office that day

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

Issued	Product	Office	Counties	Lasted
Oct 18, 7:17 PM CDT	Severe Thunderstorm Warning	JAN	Winston	43 min
Oct 18, 8:06 PM CDT	Severe Thunderstorm Warning	JAN	Bolivar, Leflore, Sunflower	39 min
Oct 18, 8:28 PM CDT	Severe Thunderstorm Warning	JAN	Jasper	47 min
Oct 18, 8:37 PM CDT	Severe Thunderstorm Warning	JAN	Leflore, Sunflower, Washington	53 min
Oct 18, 8:44 PM CDT	Tornado Warning	JAN	Kemper	46 min
Oct 18, 9:15 PM CDT	Severe Thunderstorm Warning	JAN	Carroll, Grenada, Montgomery	45 min
Oct 18, 9:21 PM CDT	Severe Thunderstorm Warning	JAN	Noxubee	24 min
Oct 18, 9:33 PM CDT	Severe Thunderstorm Warning	JAN	Kemper	27 min
Oct 18, 9:51 PM CDT	Severe Thunderstorm Warning	JAN	Yazoo	39 min
Oct 18, 10:14 PM CDT	Severe Thunderstorm Warning	JAN	Attala, Holmes	46 min

Nearby

Tornado Warnings in Mississippi, 2007 Every tornado warning in 2007 Tornadoes in 2007

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.