Alert archive / Mississippi / Tornado Warnings in 2017

Tornado Warning 12, NWS Jackson, MS

January 21, 2017Lamar County, Marion County, Mississippi

NWS Jackson, MS issued this tornado warning at Jan 21, 2017, 2:57 AM CST for Lamar County, Marion County, Mississippi. It was in force for 63 min. 10 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: Jan 21, 2017, 2:57 AM CST (08:57 UTC)
Expired: Jan 21, 2017, 4:00 AM CST
In force: 63 min
Issued by: NWS Jackson, MS
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 1.0 in

Counties Lamar County, MS, Marion County, MS

What was reported inside it

Time	Report	Where	Remark
Jan 21, 3:10 AM CST	TSTM WND DMG	4 E Sandy Hook, MS	TREE DOWN ACROSS HWY 43
Jan 21, 3:15 AM CST	HAIL 0.25	6 Nne Baxterville, MS	PEA SIZED HAIL NEAR COLUMBIA-PURVIS ROAD AND BEACH ROAD. REPORTED BY EMA
Jan 21, 3:15 AM CST	HAIL 0.5	7 W West Hattiesburg, MS	PEA TO MARBLE SIZED HAIL REPORTED BY EMA
Jan 21, 3:35 AM CST	HAIL 1.75	7 W West Hattiesburg, MS	GOLF BALL HAIL REPORTED BY EMA
Jan 21, 3:35 AM CST	TORNADO 3	5 Nw Purvis, MS	* 4 FATAL, 56 INJ * TORNADO TOUCHED DOWN AT PURVIS-OLOH ROAD AND GAINED STRENGTH BEFORE CROSSING THE LAMAR/FORREST COUNTY LINE AND MOVING INTO HATTIESBURG. THE TORNADO DID MAJOR DAMAGE THROUGH THE SOUTHERN PART OF CITY WHERE 4 FATALITIES OCCURRED. THE TORN
Jan 21, 3:38 AM CST	TORNADO	5 Nnw Purvis, MS	TREES DOWN ALONG OLD HWY 11. SOME DAMAGE WAS ALSO REPORTED JUST WEST NEAR PURVIS OLOH AND MAX WHITE RD.
Jan 21, 3:41 AM CST	HAIL 1.5	4 Sw West Hattiesburg, MS	PING PONG BALL SIZED HAIL IN THE OAK GROVE COMMUNITY REPORTED VIA SOCIAL MEDIA
Jan 21, 3:51 AM CST	HAIL 1.75	4 Nne Pinebur, MS
Jan 21, 3:54 AM CST	HAIL 1.5	7 Ese Improve, MS	HALF DOLLAR TO PING PONG SIZED HAIL NEAR COLUMBIA REPORTED VIA SOCIAL MEDIA
Jan 21, 3:55 AM CST	HAIL 1.75	7 Ne Pinebur, MS

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
Jan 20, 11:00 PM CST	Tornado Watch	SPC	8 hr

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 00:00Z, 9.0 hours before the alert went out and 104 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: 628 J/kg
Mixed-layer CIN: -28 J/kg
Mixed-layer LCL: 857 m above ground
0-6 km bulk shear: 45 kt
0-1 km storm-relative helicity: 85 m²/s²
0-3 km storm-relative helicity: 150 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 1.6

Open this sounding in Storm Lab

The text

As transmitted.

796 
WFUS54 KJAN 210857
TORJAN
MSC073-091-211000-
/O.NEW.KJAN.TO.W.0012.170121T0857Z-170121T1000Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Jackson MS
257 AM CST SAT JAN 21 2017

The National Weather Service in Jackson has issued a

* Tornado Warning for...
  Lamar County in southeastern Mississippi...
  Southeastern Marion County in south central Mississippi...

* Until 400 AM CST
    
* At 256 AM CST, a severe thunderstorm capable of producing a tornado
  was located near Sandy Hook, moving northeast at 65 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...
  Sandy Hook and Pickwick around 305 AM CST. 
  Pinebur around 310 AM CST. 
  Hattiesburg around 325 AM CST. 
  West Hattiesburg, Sumrall and Oak Grove around 330 AM CST. 

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 3100 8983 3107 8984 3107 8992 3113 8994
      3113 8998 3144 8965 3143 8945 3135 8945
      3134 8935 3127 8935 3100 8965
TIME...MOT...LOC 0856Z 226DEG 57KT 3099 8990 

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

$$

19

1 follow-up statement

834 
WWUS54 KJAN 210926
SVSJAN

Severe Weather Statement
National Weather Service Jackson MS
326 AM CST SAT JAN 21 2017

MSC091-210936-
/O.CAN.KJAN.TO.W.0012.000000T0000Z-170121T1000Z/
Marion MS-
326 AM CST SAT JAN 21 2017

...THE TORNADO WARNING FOR SOUTHEASTERN MARION COUNTY IS CANCELLED...
    
The tornadic thunderstorm which prompted the warning has moved out
of the warned area. therefore the warning has been cancelled.

A tornado watch remains in effect until 700 AM CST for southeastern
Mississippi.

LAT...LON 3143 8965 3143 8945 3135 8945 3134 8935
      3127 8935 3109 8955 3109 8957 3106 8965
TIME...MOT...LOC 0926Z 228DEG 39KT 3117 8960 

$$

MSC073-211000-
/O.CON.KJAN.TO.W.0012.000000T0000Z-170121T1000Z/
Lamar MS-
326 AM CST SAT JAN 21 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 400 AM CST FOR LAMAR
COUNTY...
    
At 326 AM CST, a severe thunderstorm capable of producing a tornado
was located near Baxterville, or 15 miles southeast of Columbia,
moving northeast at 45 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...
  Hattiesburg around 340 AM CST. 
  Oak Grove around 345 AM CST. 
  West Hattiesburg around 350 AM CST. 

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 3143 8965 3143 8945 3135 8945 3134 8935
      3127 8935 3109 8955 3109 8957 3106 8965
TIME...MOT...LOC 0926Z 228DEG 39KT 3117 8960 

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

$$

19

The office that day

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

Issued	Product	Office	Counties	Lasted
Jan 21, 12:24 AM CST	Severe Thunderstorm Warning	JAN	Adams, Franklin	66 min
Jan 21, 12:51 AM CST	Severe Thunderstorm Warning	JAN	Adams	54 min
Jan 21, 1:19 AM CST	Severe Thunderstorm Warning	JAN	Copiah, Lincoln	56 min
Jan 21, 1:38 AM CST	Severe Thunderstorm Warning	JAN	Franklin	52 min
Jan 21, 2:02 AM CST	Severe Thunderstorm Warning	JAN	Rankin, Simpson	58 min
Jan 21, 2:22 AM CST	Severe Thunderstorm Warning	JAN	Lawrence, Lincoln	53 min
Jan 21, 2:29 AM CST	Severe Thunderstorm Warning	JAN	Covington, Jefferson Davis, Marion	61 min
Jan 21, 3:04 AM CST	Special Weather Statement	JAN	Scott, Smith	26 min
Jan 21, 3:12 AM CST	Tornado Warning	JAN	Covington, Jasper, Jones, Smith	48 min
Jan 21, 3:20 AM CST	Flash Flood Warning	JAN	Adams, Claiborne, Copiah, Franklin, Jefferson, Lincoln	3 hr
Jan 21, 3:26 AM CST	Special Weather Statement	JAN	Clarke	34 min
Jan 21, 3:32 AM CST	Severe Thunderstorm Warning	JAN	Jones	43 min
Jan 21, 3:36 AM CST	Tornado Warning	JAN	Forrest, Jones, Lamar	54 min
Jan 21, 3:38 AM CST	Severe Thunderstorm Warning	JAN	Jefferson Davis, Marion	25 min
Jan 21, 3:57 AM CST	Tornado Warning	JAN	Lamar	38 min
Jan 21, 4:09 AM CST	Severe Thunderstorm Warning	JAN	Jasper	51 min
Jan 21, 4:24 AM CST	Severe Thunderstorm Warning	JAN	Forrest, Jones	42 min
Jan 21, 4:24 AM CST	Tornado Warning	JAN	Clarke	41 min
Jan 21, 4:31 AM CST	Flash Flood Warning	JAN	Covington, Forrest, Jefferson Davis, Jones, Lamar, Marion	4 hr
Jan 21, 9:21 AM CST	River Flood Warning	JAN	Lawrence	4 days
Jan 21, 2:21 PM CST	River Flood Warning	JAN	Leake	4 days

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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive.