Alert archive / Mississippi / Tornado Warnings in 2017

Tornado Warning 33, NWS Jackson, MS

March 7, 2017Clarke County, Mississippi

NWS Jackson, MS issued this tornado warning at Mar 7, 2017, 4:08 PM CST for Clarke County, Mississippi. It was in force for 15 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: Mar 7, 2017, 4:08 PM CST (22:08 UTC)
Expired: Mar 7, 2017, 4:23 PM CST
In force: 15 min
Issued by: NWS Jackson, MS
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 1.0 in

County Clarke County, MS

The radar

The Jackson/Brandon,MS radar (KDGX), 138 km from the middle of the area, began a volume at 22:11 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, 10.1 hours before the alert went out and 147 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: 3 J/kg
Mixed-layer CIN: -150 J/kg
Mixed-layer LCL: 613 m above ground
0-6 km bulk shear: 37 kt
0-1 km storm-relative helicity: 374 m²/s²
0-3 km storm-relative helicity: 440 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

760 
WFUS54 KJAN 072208
TORJAN
MSC023-072315-
/O.NEW.KJAN.TO.W.0033.170307T2208Z-170307T2315Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Jackson MS
408 PM CST TUE MAR 7 2017

The National Weather Service in Jackson has issued a

* Tornado Warning for...
  Central Clarke County in east central Mississippi...

* Until 515 PM CST
    
* At 408 PM CST, a severe thunderstorm capable of producing a tornado
  was located over De Soto, or near Quitman, moving northeast at 40
  mph.

  HAZARD...Tornado and quarter size hail. 

  SOURCE...Radar indicated rotation. 

  IMPACT...Flying debris will be dangerous to those caught without 
           shelter. Mobile homes will be damaged or destroyed. 
           Damage to roofs, windows, and vehicles will occur.  Tree 
           damage is likely. 

* This dangerous storm will be near...
  Crandall and Sykes around 425 PM CST. 

Other locations impacted by this tornadic thunderstorm include
Shubuta.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 3195 8847 3184 8872 3203 8883 3223 8845
      3223 8843 3220 8843
TIME...MOT...LOC 2208Z 244DEG 34KT 3196 8871 

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

DB

2 follow-up statements

140 
WWUS54 KJAN 072217 RRA
SVSJAN

Severe Weather Statement
National Weather Service Jackson MS
417 PM CST TUE MAR 7 2017

MSC023-072315-
/O.CON.KJAN.TO.W.0033.000000T0000Z-170307T2315Z/
Clarke MS-
417 PM CST TUE MAR 7 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 515 PM CST FOR
SOUTHEASTERN CLARKE COUNTY...
    
At 417 PM CST, a severe thunderstorm capable of producing a tornado
was located near Crandall, or near Quitman, moving northeast at 40
mph.

HAZARD...Tornado and quarter size hail. 

SOURCE...Radar indicated rotation. 

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely. 

This tornadic thunderstorm will remain over mainly rural areas of
southeastern Clarke County.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 3187 8866 3204 8872 3220 8843 3195 8847
TIME...MOT...LOC 2217Z 244DEG 34KT 3200 8861 

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

DB

092 
WWUS54 KJAN 072223
SVSJAN

Severe Weather Statement
National Weather Service Jackson MS
423 PM CST TUE MAR 7 2017

MSC023-072233-
/O.CAN.KJAN.TO.W.0033.000000T0000Z-170307T2315Z/
Clarke MS-
423 PM CST TUE MAR 7 2017

...THE TORNADO WARNING FOR SOUTHEASTERN CLARKE COUNTY IS CANCELLED...
                
The storm which prompted the warning has weakened below severe
limits, and no longer appears capable of producing a tornado.
Therefore the warning has been cancelled.

LAT...LON 3187 8866 3204 8872 3220 8843 3195 8847
TIME...MOT...LOC 2221Z 244DEG 34KT 3203 8854 

$$

DB

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 7, 11:10 AM CST	Special Weather Statement	JAN	Yazoo	35 min
Mar 7, 11:46 AM CST	Special Weather Statement	JAN	Clay	29 min
Mar 7, 12:19 PM CST	Special Weather Statement	JAN	Oktibbeha	26 min
Mar 7, 12:32 PM CST	Severe Thunderstorm Warning	JAN	Clay, Lowndes, Oktibbeha	43 min
Mar 7, 12:44 PM CST	Special Weather Statement	JAN	Rankin	31 min
Mar 7, 12:55 PM CST	Severe Thunderstorm Warning	JAN	Rankin	50 min
Mar 7, 1:08 PM CST	Special Weather Statement	JAN	Hinds	37 min
Mar 7, 1:10 PM CST	Severe Thunderstorm Warning	JAN	Hinds, Rankin	50 min
Mar 7, 1:15 PM CST	Special Weather Statement	JAN	Neshoba	30 min
Mar 7, 1:20 PM CST	Special Weather Statement	JAN	Copiah	25 min
Mar 7, 1:33 PM CST	Severe Thunderstorm Warning	JAN	Kemper, Neshoba, Noxubee, Winston	42 min
Mar 7, 1:35 PM CST	Severe Thunderstorm Warning	JAN	Copiah, Hinds, Rankin, Simpson	29 min
Mar 7, 1:46 PM CST	Special Weather Statement	JAN	Scott	29 min
Mar 7, 2:04 PM CST	Severe Thunderstorm Warning	JAN	Kemper, Noxubee	26 min
Mar 7, 2:22 PM CST	Severe Thunderstorm Warning	JAN	Jasper, Lauderdale, Newton, Scott, Smith	38 min
Mar 7, 2:53 PM CST	Severe Thunderstorm Warning	JAN	Clarke, Jasper, Lauderdale, Newton	67 min
Mar 7, 3:13 PM CST	Special Weather Statement	JAN	Covington, Jasper	47 min
Mar 7, 3:25 PM CST	Severe Thunderstorm Warning	JAN	Covington, Jasper, Jones, Smith	50 min
Mar 7, 4:09 PM CST	Severe Thunderstorm Warning	JAN	Jones	29 min
Mar 7, 4:34 PM CST	Special Weather Statement	JAN	Marion	41 min
Mar 7, 5:04 PM CST	Special Weather Statement	JAN	Jones	41 min

Nearby

Tornado Warnings in Mississippi, 2017 Every tornado warning in 2017 Tornadoes in 2017

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.