Alert archive / Mississippi / Tornado Warnings in 2015

Tornado Warning 7, NWS Memphis, TN

November 17, 2015Coahoma County, Mississippi; Phillips County, Arkansas

NWS Memphis, TN issued this tornado warning at Nov 17, 2015, 5:02 PM CST for Coahoma County, Mississippi; Phillips County, Arkansas. It was in force for 23 min. 1 report 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: Nov 17, 2015, 5:02 PM CST (23:02 UTC)
Expired: Nov 17, 2015, 5:25 PM CST
In force: 23 min
Issued by: NWS Memphis, TN
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.0 in

Counties Phillips County, AR, Coahoma County, MS

The radar

The Memphis radar (KNQA), 121 km from the middle of the area, began a volume at 23:04 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
Nov 17, 5:05 PM CST	TSTM WND DMG	Lake View, AR	SHERIFF REPORTS A ROOF BLOWN OFF OF A TRAILER HOME IN LAKE VIEW.

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
Nov 17, 3:15 PM CST	Tornado Watch	SPC	4 hr

The nearest sounding before it

Little Rock, AR (KBYH), launched 12:00Z, 11.0 hours before the alert went out and 79 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: 344 J/kg
Mixed-layer CIN: -23 J/kg
Mixed-layer LCL: 618 m above ground
0-6 km bulk shear: 46 kt
0-1 km storm-relative helicity: 403 m²/s²
0-3 km storm-relative helicity: 550 m²/s²
Significant tornado parameter: 0.9
Supercell composite: 8.5

Open this sounding in Storm Lab

The text

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

193 
WFUS54 KMEG 172302
TORMEG
ARC107-MSC027-172345-
/O.NEW.KMEG.TO.W.0007.151117T2302Z-151117T2345Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MEMPHIS TN
502 PM CST TUE NOV 17 2015

THE NATIONAL WEATHER SERVICE IN MEMPHIS HAS ISSUED A

* TORNADO WARNING FOR...
  CENTRAL PHILLIPS COUNTY IN EASTERN ARKANSAS...
  CENTRAL COAHOMA COUNTY IN NORTHWESTERN MISSISSIPPI...

* UNTIL 545 PM CST
        
* AT 501 PM CST...A SEVERE THUNDERSTORM PRODUCING A TORNADO WAS
  LOCATED NEAR ELAINE...MOVING NORTHEAST AT 45 MPH.

  HAZARD...TORNADO. 

  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...
  WEST HELENA AROUND 520 PM CST.
  HELENA AND LEXA AROUND 525 PM CST.

OTHER LOCATIONS IMPACTED BY THIS TORNADIC THUNDERSTORM INCLUDE
MODOC...QUARLES...HOOP SPUR...SPRING CREEK...HUMA...KINDALL...PRESTON
PLACE...WYCAMP...ONEIDA AND HELENA CROSSING.

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 3464 9086 3454 9054 3453 9055 3452 9057
      3452 9056 3424 9077 3432 9096
TIME...MOT...LOC 2301Z 208DEG 40KT 3436 9082 

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

$$

2 follow-up statements

875 
WWUS54 KMEG 172310
SVSMEG

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MEMPHIS TN
510 PM CST TUE NOV 17 2015

MSC027-172319-
/O.CAN.KMEG.TO.W.0007.000000T0000Z-151117T2345Z/
COAHOMA MS-
510 PM CST TUE NOV 17 2015

...THE TORNADO WARNING FOR CENTRAL COAHOMA 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 900 PM CST FOR EASTERN
ARKANSAS AND NORTHWESTERN MISSISSIPPI.

LAT...LON 3464 9086 3456 9062 3436 9076 3436 9077
      3435 9077 3432 9079 3438 9094
TIME...MOT...LOC 2309Z 208DEG 40KT 3444 9077 

$$

ARC107-172345-
/O.CON.KMEG.TO.W.0007.000000T0000Z-151117T2345Z/
PHILLIPS AR-
510 PM CST TUE NOV 17 2015

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 545 PM CST FOR
NORTHEASTERN PHILLIPS COUNTY...
    
AT 509 PM CST...A SEVERE THUNDERSTORM PRODUCING A TORNADO WAS LOCATED
9 MILES NORTHWEST OF FRIARS POINT...OR 9 MILES SOUTHWEST OF WEST
HELENA...MOVING NORTHEAST AT 45 MPH.

HAZARD...TORNADO. 

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...
  WEST HELENA AROUND 520 PM CST.
  HELENA AND LEXA AROUND 525 PM CST.

OTHER LOCATIONS IMPACTED BY THIS TORNADIC THUNDERSTORM INCLUDE
QUARLES...HOOP SPUR...SPRING CREEK...HUMA...KINDALL...WYCAMP...
ONEIDA...KINGTOWN...POPLAR GROVE AND LAKE VIEW.

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.

THIS CLUSTER OF THUNDERSTORMS IS PRODUCING TORNADOES AND WIDESPREAD
SIGNIFICANT WIND DAMAGE. DO NOT WAIT TO SEE OR HEAR THE TORNADO. FOR
YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

&&

LAT...LON 3464 9086 3456 9062 3436 9076 3436 9077
      3435 9077 3432 9079 3438 9094
TIME...MOT...LOC 2309Z 208DEG 40KT 3444 9077 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

871 
WWUS54 KMEG 172325
SVSMEG

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MEMPHIS TN
525 PM CST TUE NOV 17 2015

ARC107-172335-
/O.CAN.KMEG.TO.W.0007.000000T0000Z-151117T2345Z/
PHILLIPS AR-
525 PM CST TUE NOV 17 2015

...THE TORNADO WARNING FOR NORTHEASTERN PHILLIPS COUNTY IS
CANCELLED...
        
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE LIMITS
AND EXITED THE WARNED AREA. THEREFORE THE WARNING HAS BEEN CANCELLED.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 900 PM CST FOR EASTERN
ARKANSAS AND NORTHWESTERN MISSISSIPPI.

LAT...LON 3464 9086 3456 9062 3436 9076 3436 9077
      3435 9077 3432 9079 3438 9094
TIME...MOT...LOC 2323Z 208DEG 40KT 3460 9067 

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Nov 17, 3:45 PM CST	River Flood Warning	MEG	Monroe	54 hr
Nov 17, 3:45 PM CST	River Flood Warning	MEG	Monroe	47 hr
Nov 17, 4:53 PM CST	Severe Thunderstorm Warning	MEG	Coahoma	37 min

Nearby

Tornado Warnings in Mississippi, 2015 Tornado Warnings in Arkansas, 2015 Every tornado warning in 2015 Tornadoes in 2015

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.