Alert archive / Mississippi / Tornado Warnings in 2013

Tornado Warning 79, NWS Jackson, MS

December 21, 2013Bolivar County, Mississippi

NWS Jackson, MS issued this tornado warning at Dec 21, 2013, 5:25 PM CST for Bolivar County, Mississippi. It was in force for 20 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 21, 2013, 5:25 PM CST (23:25 UTC)
Expired: Dec 21, 2013, 5:45 PM CST
In force: 20 min
Issued by: NWS Jackson, MS
Area: Storm-based polygon

County Bolivar County, MS

The radar

The Little Rock radar (KLZK), 170 km from the middle of the area, began a volume at 23:29 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 21, 5:25 PM CST	TSTM WND DMG	Pace, MS	TREES DOWN. POWER POLES DOWN ON HWY 8. SHED DESTROYED. SHINGLES BLOWN OFF A HOUSE.
Dec 21, 5:25 PM CST	TORNADO 2	5 Wnw Cleveland, MS	THIS TORNADO CONTINUED FROM CHICOT CO ARKANSAS INTO BOLIVAR CO. NUMEROUS POWER POLES WERE SNAPPED...A WELL BUILT TRACTOR SHED WAS DESTROYED AND SEVERAL FARM BUILDINGS WERE DAMAGED. THE TORNADO WAS RATED EF2 WITH MAX WINDS OF 115 MPH AND THE MAX WIDTH WAS 1/4 M

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Dec 21, 12:01 PM CST	Tornado Watch	SPC	8 hr
Dec 21, 5:22 PM CST	Tornado Watch	SPC	7 hr

The nearest sounding before it

Little Rock, AR (KBYH), launched 12:00Z, 11.4 hours before the alert went out and 120 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: 158 J/kg
Mixed-layer CIN: -96 J/kg
Mixed-layer LCL: 461 m above ground
0-6 km bulk shear: 57 kt
0-1 km storm-relative helicity: 518 m²/s²
0-3 km storm-relative helicity: 610 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 5.0

Open this sounding in Storm Lab

The text

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

617 
WFUS54 KJAN 212325
TORJAN
MSC011-212345-
/O.NEW.KJAN.TO.W.0079.131221T2325Z-131221T2345Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE JACKSON MS
525 PM CST SAT DEC 21 2013

THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHEASTERN BOLIVAR COUNTY IN NORTHWEST MISSISSIPPI...

* UNTIL 545 PM CST

* AT 524 PM CST...A TORNADO WAS INDICATED 5 MILES WEST OF RENOVA...
  AND MOVING NORTHEAST AT 65 MPH.

  HAZARD...TORNADO.

* THIS DANGEROUS STORM WILL BE NEAR...
  MERIGOLD AND RENOVA AROUND 530 PM CST.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TO PROTECT YOUR LIFE...TAKE COVER NOW! MOVE TO A BASEMENT OR AN
INTERIOR ROOM ON THE LOWEST FLOOR OF A STURDY BUILDING. AVOID
WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR OUTDOORS...MOVE TO THE
CLOSEST SUBSTANTIAL SHELTER.

&&

A TORNADO WATCH REMAINS IN EFFECT UNTIL 800 PM CST SATURDAY EVENING
FOR NORTHWESTERN MISSISSIPPI.

LAT...LON 3412 9065 3380 9066 3371 9090 3380 9095
      3413 9069 3413 9066
TIME...MOT...LOC 2325Z 237DEG 56KT 3378 9080

$$

BYB

The office that day

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

Issued	Product	Office	Counties	Lasted
Dec 21, 4:38 PM CST	Severe Thunderstorm Warning	JAN	Bolivar, Washington	52 min
Dec 21, 4:42 PM CST	Severe Thunderstorm Warning	JAN	Issaquena	63 min
Dec 21, 4:48 PM CST	Tornado Warning	JAN	Bolivar, Washington	27 min
Dec 21, 5:06 PM CST	Severe Thunderstorm Warning	JAN	Washington	39 min
Dec 21, 5:07 PM CST	Tornado Warning	JAN	Bolivar	23 min
Dec 21, 5:17 PM CST	Tornado Warning	JAN	Issaquena	43 min
Dec 21, 5:28 PM CST	Severe Thunderstorm Warning	JAN	Bolivar, Leflore, Sunflower, Washington	62 min
Dec 21, 5:35 PM CST	Tornado Warning	JAN	Issaquena, Sharkey, Washington	40 min
Dec 21, 5:47 PM CST	Severe Thunderstorm Warning	JAN	Humphreys, Leflore, Sunflower	58 min
Dec 21, 5:49 PM CST	Severe Thunderstorm Warning	JAN	Humphreys, Sharkey, Yazoo	56 min

Nearby

Tornado Warnings in Mississippi, 2013 Every tornado warning in 2013 Tornadoes in 2013

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.