Alert archive / Missouri / Severe Thunderstorm Warnings in 2015

Severe Thunderstorm Warning 21, NWS Memphis, TN

March 31, 2015Dunklin County, Pemiscot County, Missouri; Dyer County, Tennessee

NWS Memphis, TN issued this severe thunderstorm warning at Mar 31, 2015, 8:18 PM CDT for Dunklin County, Pemiscot County, Missouri; Dyer County, Tennessee. It was in force for 42 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 31, 2015, 8:18 PM CDT (01:18 UTC)
Expired: Mar 31, 2015, 9:00 PM CDT
In force: 42 min
Issued by: NWS Memphis, TN
Area: Storm-based polygon

Counties Dunklin County, MO, Pemiscot County, MO, Dyer County, TN

The radar

The Memphis radar (KNQA), 89 km from the middle of the area, began a volume at 01:22 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 watch it was issued in

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

Issued	Product	Office	Lasted
Mar 31, 5:13 PM CDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Little Rock, AR (KBYH), launched 00:00Z, 1.3 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: 1687 J/kg
Mixed-layer CIN: -22 J/kg
Mixed-layer LCL: 1334 m above ground
0-6 km bulk shear: 43 kt
0-1 km storm-relative helicity: 0 m²/s²
0-3 km storm-relative helicity: 15 m²/s²
Significant tornado parameter: -0.1
Supercell composite: -1.1

Open this sounding in Storm Lab

The text

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

816 
WUUS54 KMEG 010118
SVRMEG
MOC069-155-TNC045-010200-
/O.NEW.KMEG.SV.W.0021.150401T0118Z-150401T0200Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MEMPHIS TN
818 PM CDT TUE MAR 31 2015

THE NATIONAL WEATHER SERVICE IN MEMPHIS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  PEMISCOT COUNTY IN SOUTHEASTERN MISSOURI...
  SOUTHEASTERN DUNKLIN COUNTY IN SOUTHEASTERN MISSOURI...
  WESTERN DYER COUNTY IN NORTHWESTERN TENNESSEE...

* UNTIL 900 PM CDT

* AT 818 PM CDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM
  PRODUCING QUARTER SIZE HAIL AND DAMAGING WINDS IN EXCESS OF 60 MPH.
  THIS STORM WAS LOCATED OVER KENNETT...AND MOVING EAST AT 35 MPH.

* LOCATIONS IMPACTED INCLUDE...
  KENNETT...CARUTHERSVILLE...HAYTI...STEELE...SENATH...HAYTI
  HEIGHTS...COOTER...HELOISE...DEERING...MISTON...HOLLAND...BRAGG
  CITY...PASCOLA...STINGER...BOGOTA...WEST KENNETT...TIGER TAIL...
  LENOX...MENGELWOOD AND LORINE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS...DESTRUCTIVE HAIL...
DEADLY LIGHTNING AND VERY HEAVY RAIN. FOR YOUR PROTECTION...MOVE TO
AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. HEAVY
RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE INTO AREAS WHERE WATER
COVERS THE ROAD.

TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THIS STORM...AND MAY LEAD
TO FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.

&&

LAT...LON 3625 8970 3623 8970 3618 8963 3619 8949
      3620 8948 3617 8934 3594 8955 3592 8963
      3590 8964 3597 8972 3600 8973 3600 8996
      3612 9027 3614 9024 3618 9022 3623 9013
      3626 9012 3628 9008 3630 9007 3633 9008
TIME...MOT...LOC 0118Z 287DEG 32KT 3623 9006 

$$

2 follow-up statements

894 
WWUS54 KMEG 010135
SVSMEG

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MEMPHIS TN
835 PM CDT TUE MAR 31 2015

MOC069-010144-
/O.CAN.KMEG.SV.W.0021.000000T0000Z-150401T0200Z/
DUNKLIN MO-

835 PM CDT TUE MAR 31 2015

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN DUNKLIN COUNTY IS
CANCELLED...
    
THE SEVERE THUNDERSTORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF 
THE WARNED AREA. THEREFORE THE WARNING HAS BEEN CANCELLED.

LAT...LON 3625 8970 3623 8970 3618 8963 3619 8949
      3620 8948 3617 8934 3594 8955 3592 8963
      3590 8964 3597 8972 3600 8973 3600 8996
      3601 8996 3602 8995 3608 8996 3630 8996
TIME...MOT...LOC 0134Z 287DEG 32KT 3619 8988 

$$

MOC155-TNC045-010200-
/O.CON.KMEG.SV.W.0021.000000T0000Z-150401T0200Z/
PEMISCOT MO-DYER TN-
835 PM CDT TUE MAR 31 2015

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 900 PM CDT
FOR PEMISCOT AND WESTERN DYER COUNTIES...

AT 834 PM CDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM
PRODUCING HALF DOLLAR SIZE HAIL AND DAMAGING WINDS IN EXCESS OF 60
MPH. THIS STORM WAS LOCATED OVER DEERING...OR 7 MILES NORTH OF
STEELE...MOVING EAST AT 35 MPH.

LOCATIONS IMPACTED INCLUDE...
CARUTHERSVILLE...HAYTI...STEELE...HAYTI HEIGHTS...COOTER...MISTON...
HELOISE...DEERING...HOLLAND...BRAGG CITY...PASCOLA...STINGER...
BOGOTA...TIGER TAIL...TENNEMO...LENOX...NAUVOO...BOOTHSPOINT...
MENGELWOOD AND AYERS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS...DESTRUCTIVE HAIL...
DEADLY LIGHTNING AND VERY HEAVY RAIN. FOR YOUR PROTECTION MOVE TO AN
INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. HEAVY
RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE INTO AREAS WHERE WATER
COVERS THE ROAD.

TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THIS STORM...AND MAY LEAD
TO FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.

&&

LAT...LON 3625 8970 3623 8970 3618 8963 3619 8949
      3620 8948 3617 8934 3594 8955 3592 8963
      3590 8964 3597 8972 3600 8973 3600 8996
      3601 8996 3602 8995 3608 8996 3630 8996
TIME...MOT...LOC 0134Z 287DEG 32KT 3619 8988 

$$

879 
WWUS54 KMEG 010140
SVSMEG

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MEMPHIS TN
840 PM CDT TUE MAR 31 2015

MOC155-010150-
/O.CAN.KMEG.SV.W.0021.000000T0000Z-150401T0200Z/
PEMISCOT MO-

840 PM CDT TUE MAR 31 2015

...THE SEVERE THUNDERSTORM WARNING FOR PEMISCOT COUNTY IS
CANCELLED...
    
THE SEVERE THUNDERSTORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF 
THE WARNED AREA. THEREFORE THE WARNING HAS BEEN CANCELLED.

LAT...LON 3617 8934 3594 8955 3592 8963 3590 8964
      3593 8965 3597 8972 3600 8973 3600 8971
      3603 8969 3609 8968 3613 8959 3615 8959
      3618 8962 3619 8949 3620 8948
TIME...MOT...LOC 0140Z 287DEG 32KT 3617 8981 

$$

TNC045-010200-
/O.CON.KMEG.SV.W.0021.000000T0000Z-150401T0200Z/
DYER TN-
840 PM CDT TUE MAR 31 2015

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 900 PM CDT
FOR WESTERN DYER COUNTY...

AT 840 PM CDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM
PRODUCING HALF DOLLAR SIZE HAIL AND DAMAGING WINDS IN EXCESS OF 60
MPH. THIS STORM WAS LOCATED NEAR DEERING...OR NEAR HAYTI...MOVING
EAST AT 35 MPH.

LOCATIONS IMPACTED INCLUDE...
HELOISE...MISTON...NAUVOO...BOOTHSPOINT...MENGELWOOD...STINGER...
AYERS...MILLSFIELD...CHIC...TYLERSVILLE...BOGOTA...TIGER TAIL...
TENNEMO...LENOX...FINLEY AND BIG BOY JUNCTION.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS...DESTRUCTIVE HAIL...
DEADLY LIGHTNING AND VERY HEAVY RAIN. FOR YOUR PROTECTION MOVE TO AN
INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. HEAVY
RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE INTO AREAS WHERE WATER
COVERS THE ROAD.

TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THIS STORM...AND MAY LEAD
TO FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.

&&

LAT...LON 3617 8934 3594 8955 3592 8963 3590 8964
      3593 8965 3597 8972 3600 8973 3600 8971
      3603 8969 3609 8968 3613 8959 3615 8959
      3618 8962 3619 8949 3620 8948
TIME...MOT...LOC 0140Z 287DEG 32KT 3617 8981 

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 31, 9:07 PM CDT	Severe Thunderstorm Warning	MEG	Dunklin	38 min
Mar 31, 7:01 PM CDT	Severe Thunderstorm Warning	MEG	Fayette, Hardeman, Haywood	44 min
Mar 31, 7:31 PM CDT	Severe Thunderstorm Warning	MEG	Lauderdale	44 min
Mar 31, 7:36 PM CDT	Flash Flood Warning	MEG	Chester, Hardeman, McNairy	3 hr
Mar 31, 7:37 PM CDT	Severe Thunderstorm Warning	MEG	Chester, Hardeman, McNairy	53 min
Mar 31, 7:39 PM CDT	Severe Thunderstorm Warning	MEG	Hardin, McNairy	51 min
Mar 31, 7:47 PM CDT	Severe Thunderstorm Warning	MEG	Lauderdale	43 min
Mar 31, 8:01 PM CDT	Severe Thunderstorm Warning	MEG	Haywood, Lauderdale, Tipton	44 min
Mar 31, 8:23 PM CDT	Severe Thunderstorm Warning	MEG	Chester, Hardeman, McNairy	52 min
Mar 31, 8:25 PM CDT	Severe Thunderstorm Warning	MEG	Hardin, McNairy	50 min
Mar 31, 8:39 PM CDT	Severe Thunderstorm Warning	MEG	Fayette, Haywood, Lauderdale, Tipton	51 min
Mar 31, 8:49 PM CDT	Severe Thunderstorm Warning	MEG	Crockett, Dyer, Haywood, Lauderdale	26 min
Mar 31, 8:55 PM CDT	Flash Flood Warning	MEG	Fayette, Hardeman, Haywood	3 hr
Mar 31, 9:22 PM CDT	Severe Thunderstorm Warning	MEG	Fayette	38 min
Mar 31, 9:30 PM CDT	Severe Thunderstorm Warning	MEG	McNairy	24 min
Mar 31, 10:04 PM CDT	Special Weather Statement	MEG	Hardeman	56 min
Mar 31, 10:14 PM CDT	Severe Thunderstorm Warning	MEG	Fayette	46 min
Mar 31, 10:28 PM CDT	Severe Thunderstorm Warning	MEG	Shelby	62 min
Mar 31, 10:32 PM CDT	Flash Flood Warning	MEG	Hardeman, McNairy	3 hr
Mar 31, 11:02 PM CDT	Flash Flood Watch	MEG	Chester, Fayette, Hardeman, Hardin, Haywood, Lauderdale and 4 more	4 hr
Mar 31, 11:11 PM CDT	Flash Flood Warning	MEG	Shelby, Tipton	3 hr
Mar 31, 11:18 PM CDT	Severe Thunderstorm Warning	MEG	Fayette, Shelby	32 min
Mar 31, 11:53 PM CDT	Severe Thunderstorm Warning	MEG	Fayette, Shelby	52 min
Apr 1, 11:37 AM CDT	River Flood Advisory	MEG	Lauderdale, Tipton	4 days
Apr 1, 4:22 PM CDT	Severe Thunderstorm Warning	MEG	Fayette, Shelby, Tipton	38 min
Apr 1, 5:00 PM CDT	Severe Thunderstorm Warning	MEG	Fayette, Haywood, Lauderdale, Shelby, Tipton	45 min

Nearby

Severe Thunderstorm Warnings in Missouri, 2015 Severe Thunderstorm Warnings in Tennessee, 2015 Every severe thunderstorm warning 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.