Alert archive / Mississippi / Tornado Warnings in 2017

Tornado Warning 30, NWS Memphis, TN

June 22, 2017Marshall County, Mississippi

NWS Memphis, TN issued this tornado warning at Jun 22, 2017, 6:29 PM CDT for Marshall County, Mississippi. It was in force for 16 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: Jun 22, 2017, 6:29 PM CDT (23:29 UTC)
Expired: Jun 22, 2017, 6:45 PM CDT
In force: 16 min
Issued by: NWS Memphis, TN
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.0 in

County Marshall County, MS

The radar

The Memphis radar (KNQA), 59 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
Jun 22, 6:30 PM CDT	TSTM WND DMG	1 Nnw Red Banks, MS	NUMEROUS TREES DOWN NEAR RED BANKS. POSSIBLE TORNADO DAMAGE PENDING SURVEY.
Jun 22, 6:30 PM CDT	TORNADO	1 Nnw Red Banks, MS	VIDEO CONFIRMATION OF A BRIEF TORNADO NEAR I-22 NORTHWEST OF RED BANKS. TREE DAMAGE WAS NOTED.

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

The nearest sounding before it

Little Rock, AR (KBYH), launched 12:00Z, 11.5 hours before the alert went out and 36 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: 163 J/kg
Mixed-layer CIN: -26 J/kg
Mixed-layer LCL: 546 m above ground
0-6 km bulk shear: 15 kt
0-1 km storm-relative helicity: 105 m²/s²
0-3 km storm-relative helicity: 110 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

859 
WFUS54 KMEG 222329
TORMEG
MSC093-230000-
/O.NEW.KMEG.TO.W.0030.170622T2329Z-170623T0000Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Memphis TN
629 PM CDT THU JUN 22 2017

The National Weather Service in Memphis has issued a

* Tornado Warning for...
  Northwestern Marshall County in northwestern Mississippi...

* Until 700 PM CDT
    
* At 629 PM CDT, a severe thunderstorm producing a tornado was
  located over Red Banks, or 9 miles northwest of Holly Springs,
  moving northeast at 20 mph.

  HAZARD...Tornado. 

  SOURCE...Radar indicated rotation. 

  IMPACT...Expect damage to mobile homes, roofs, and vehicles. 

* This dangerous storm will be near...
  Mt Pleasant around 655 PM CDT. 
  Slayden around 700 PM CDT. 

Other locations impacted by this tornadic thunderstorm include Taska,
Cayce, Early Grove and Victoria.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a storm shelter 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 3482 8962 3499 8962 3499 8936 3481 8957
TIME...MOT...LOC 2329Z 206DEG 17KT 3485 8959 

TORNADO...RADAR INDICATED
HAIL...0.00IN

$$

1 follow-up statement

181 
WWUS54 KMEG 222345
SVSMEG

Severe Weather Statement
National Weather Service Memphis TN
645 PM CDT THU JUN 22 2017

MSC093-222355-
/O.CAN.KMEG.TO.W.0030.000000T0000Z-170623T0000Z/
Marshall MS-
645 PM CDT THU JUN 22 2017

...THE TORNADO WARNING FOR NORTHWESTERN MARSHALL COUNTY IS
CANCELLED...
                
The storm which prompted the warning has weakened below severe
limits, and is no longer producing a tornado. Therefore, the warning
has been cancelled.

LAT...LON 3482 8962 3499 8962 3499 8936 3481 8957
TIME...MOT...LOC 2344Z 206DEG 17KT 3492 8955 

$$

The office that day

Everything else NWS Memphis, TN issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 22, 2:47 AM CDT	Flash Flood Watch	MEG	Alcorn, Benton, Calhoun, Chickasaw, Coahoma, DeSoto and 16 more	41 hr
Jun 22, 1:47 PM CDT	Flash Flood Watch	MEG	Benton, Coahoma, DeSoto, Lafayette, Marshall, Panola and 5 more	30 hr
Jun 22, 6:02 PM CDT	Special Weather Statement	MEG	Marshall	28 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.