Alert archive / Mississippi / Tornado Warnings in 2007
Tornado Warning 99, NWS Jackson, MS
NWS Jackson, MS issued this tornado warning at Dec 20, 2007, 9:39 AM CST for Jefferson Davis County, Mississippi. It was in force for 32 min. 2 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Dec 20, 2007, 9:39 AM CST (15:39 UTC)
- Expired
- Dec 20, 2007, 10:11 AM CST
- In force
- 32 min
- Issued by
- NWS Jackson, MS
- Area
- Storm-based polygon
County Jefferson Davis County, MS
The radar
The Jackson/Brandon,MS radar (KDGX), 85 km from the middle of the area, began a volume at 15:40 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Dec 20, 9:50 AM CST | HAIL 0.25 | Bassfield, MS | PEA SIZE HAIL WAS REPORTED. |
| Dec 20, 10:05 AM CST | TSTM WND DMG | Bassfield, MS | TREES DOWN AROUND THE BASSFIELD AREA |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Jackson, MS (KJAN), launched 12:00Z, 3.7 hours before the alert went out and 92 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.
- Mixed-layer CAPE
- 186 J/kg
- Mixed-layer CIN
- -8 J/kg
- Mixed-layer LCL
- 606 m above ground
- 0-6 km bulk shear
- 45 kt
- 0-1 km storm-relative helicity
- 74 m²/s²
- 0-3 km storm-relative helicity
- 70 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
WFUS54 KJAN 201539
TORJAN
MSC065-201630-
/O.NEW.KJAN.TO.W.0099.071220T1539Z-071220T1630Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE JACKSON MS
939 AM CST THU DEC 20 2007
THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A
* TORNADO WARNING FOR...
JEFFERSON DAVIS COUNTY IN SOUTH CENTRAL MISSISSIPPI...
* UNTIL 1030 AM CST
* AT 939 AM CST...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
TORNADO NEAR PROGRESS...OR ABOUT 20 MILES NORTH OF COLUMBIA...
MOVING EAST AT 45 MPH.
* THE TORNADO WILL BE NEAR...
6 MILES NORTH OF MELBA BY 955 AM CST...
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 3167 8998 3170 8976 3163 8976 3153 8959
3145 8958 3142 8968 3145 8980 3140 8983
3139 8996
TIME...MOT...LOC 1539Z 270DEG 39KT 3154 8984
$$
AEC2 follow-up statements
000
WWUS54 KJAN 201554
SVSJAN
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
954 AM CST THU DEC 20 2007
MSC065-201630-
/O.CON.KJAN.TO.W.0099.000000T0000Z-071220T1630Z/
JEFFERSON DAVIS MS-
954 AM CST THU DEC 20 2007
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1030 AM CST FOR
SOUTHEASTERN JEFFERSON DAVIS COUNTY...
AT 954 AM CST...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE TRACKING
A TORNADO. THIS TORNADO WAS LOCATED 6 MILES NORTHEAST OF
BASSFIELD...OR ABOUT 9 MILES SOUTHWEST OF COLLINS...MOVING EAST AT 45
MPH.
THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN
INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO
COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS.
IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE
NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.
LAT...LON 3144 8979 3160 8979 3161 8975 3153 8959
3144 8958 3144 8967
TIME...MOT...LOC 1554Z 270DEG 39KT 3154 8965
$$
AEC000
WWUS54 KJAN 201611
SVSJAN
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
1011 AM CST THU DEC 20 2007
MSC065-201621-
/O.CAN.KJAN.TO.W.0099.000000T0000Z-071220T1630Z/
JEFFERSON DAVIS MS-
1011 AM CST THU DEC 20 2007
...THE TORNADO WARNING FOR EASTERN JEFFERSON DAVIS COUNTY IS
CANCELLED...
THE STORM THAT PROMPTED THE TORNADO WARNING HAS MOVED OUT OF THE
COUNTY.
LAT...LON 3144 8979 3160 8979 3161 8975 3153 8959
3144 8958 3144 8967
TIME...MOT...LOC 1611Z 270DEG 39KT 3154 8943
$$
DHBThe office that day
Everything else NWS Jackson, MS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 20, 8:45 AM CST | Severe Thunderstorm Warning | JAN | Lincoln | 45 min |
| Dec 20, 9:03 AM CST | Severe Thunderstorm Warning | JAN | Lawrence | 42 min |
| Dec 20, 9:20 AM CST | Severe Thunderstorm Warning | JAN | Copiah, Simpson | 40 min |
| Dec 20, 9:31 AM CST | Severe Thunderstorm Warning | JAN | Jefferson Davis | 44 min |
| Dec 20, 9:51 AM CST | Tornado Warning | JAN | Covington | 38 min |
| Dec 20, 10:05 AM CST | Severe Thunderstorm Warning | JAN | Simpson, Smith | 40 min |
| Dec 20, 10:13 AM CST | Severe Thunderstorm Warning | JAN | Jones | 47 min |
Nearby
Tornado Warnings in Mississippi, 2007Every tornado warning in 2007Tornadoes 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.