Alert archive / Arkansas / Tornado Warnings in 2011

Tornado Warning 33, NWS Memphis, TN

April 19, 2011Clay County, Greene County, Arkansas; Dunklin County, Pemiscot County, Missouri

NWS Memphis, TN issued this tornado warning at Apr 19, 2011, 9:55 PM CDT for Clay County, Greene County, Arkansas; Dunklin County, Pemiscot County, Missouri. It was in force for 35 min. 3 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: Apr 19, 2011, 9:55 PM CDT (02:55 UTC)
Expired: Apr 19, 2011, 10:30 PM CDT
In force: 35 min
Issued by: NWS Memphis, TN
Area: Storm-based polygon

Counties Clay County, AR, Greene County, AR, Dunklin County, MO, Pemiscot County, MO

The radar

The Memphis radar (KNQA), 98 km from the middle of the area, began a volume at 02:57 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
Apr 19, 10:03 PM CDT	HAIL 1.5	Senath, MO	1 1/2 INCH HAIL REPORTED IN DOWNTOWN SENATH MISSOURI
Apr 19, 10:05 PM CDT	HAIL 1	Kennett, MO	I INCH HAIL IN KENNETT.
Apr 19, 10:05 PM CDT	HAIL 1.75	2 Sw Senath, MO	1 3/4 HAIL REPORTED SAOUTHWEST OF SENATH IN DUNKIN COUNTY

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
Apr 19, 6:46 PM CDT	Tornado Watch	SPC	9 hr

The nearest sounding before it

Little Rock, AR (KLZK), launched 00:00Z, 2.9 hours before the alert went out and 155 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: 1605 J/kg
Mixed-layer CIN: -56 J/kg
Mixed-layer LCL: 2015 m above ground
0-6 km bulk shear: 41 kt
0-1 km storm-relative helicity: 173 m²/s²
0-3 km storm-relative helicity: 208 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 10.6

Open this sounding in Storm Lab

The text

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

803 
WFUS54 KMEG 200255
TORMEG
ARC021-055-MOC069-155-200330-
/O.NEW.KMEG.TO.W.0033.110420T0255Z-110420T0330Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MEMPHIS TN
955 PM CDT TUE APR 19 2011

THE NATIONAL WEATHER SERVICE IN MEMPHIS HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHEASTERN CLAY COUNTY IN EASTERN ARKANSAS...
  SOUTHEASTERN GREENE COUNTY IN EASTERN ARKANSAS...
  SOUTHERN DUNKLIN COUNTY IN SOUTHEAST MISSOURI...
  WESTERN PEMISCOT COUNTY IN SOUTHEAST MISSOURI...

* UNTIL 1030 PM CDT

* AT 955 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM PRODUCING A TORNADO NEAR BUCODA...OR NEAR
  SENATH...MOVING NORTHEAST AT 55 MPH.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO DENTON...
  HAYTI...HOMESTOWN...KENNETT...SENATH...STEELE...WHITE OAK...
  IPLEY...DILLMAN...SCOBEVILLE...TINKERVILLE...GOBLER...DEER LAND AND
  VINCIT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

.HEAVY RAINFALL MAY HIDE THIS TORNADO. DO NOT WAIT TO SEE OR HEAR THE
TORNADO. TAKE COVER NOW.

.THE SAFEST PLACE TO BE DURING A TORNADO IS IN A STORM SHELTER. IF NO
STORM SHELTER IS AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE
BUILDING IN AN INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE
BLANKETS OR PILLOWS TO COVER YOUR BODY AND ALWAYS STAY AWAY FROM
WINDOWS.

IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE
NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

.TORNADOES ARE DIFFICULT TO SEE AND CONFIRM AT NIGHT. TAKE COVER NOW.

&&

LAT...LON 3641 8969 3617 8971 3600 8997 3598 9051
      3625 9031 3632 9008
TIME...MOT...LOC 0255Z 243DEG 48KT 3611 9019

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 19, 7:27 PM CDT	Severe Thunderstorm Warning	MEG	Lawrence, Randolph	63 min
Apr 19, 8:11 PM CDT	Severe Thunderstorm Warning	MEG	Clay, Greene, Lawrence, Randolph	64 min
Apr 19, 8:38 PM CDT	Severe Thunderstorm Warning	MEG	Craighead, Greene, Lawrence, Poinsett	67 min
Apr 19, 8:46 PM CDT	Severe Thunderstorm Warning	MEG	Clay, Greene	59 min
Apr 19, 8:57 PM CDT	Tornado Warning	MEG	Craighead, Greene, Lawrence	33 min
Apr 19, 9:13 PM CDT	Severe Thunderstorm Warning	MEG	Clay, Craighead, Greene, Mississippi	47 min
Apr 19, 9:24 PM CDT	Tornado Warning	MEG	Clay, Greene	36 min
Apr 19, 9:38 PM CDT	Severe Thunderstorm Warning	MEG	Cross, Lee, Phillips, Poinsett, St. Francis	52 min
Apr 19, 9:40 PM CDT	Severe Thunderstorm Warning	MEG	Craighead, Greene, Poinsett	50 min
Apr 19, 9:43 PM CDT	Severe Thunderstorm Warning	MEG	Lee, Phillips	47 min
Apr 19, 9:48 PM CDT	Tornado Warning	MEG	Craighead, Poinsett	27 min
Apr 19, 9:52 PM CDT	Severe Thunderstorm Warning	MEG	Clay, Craighead, Greene, Mississippi, Poinsett	53 min
Apr 19, 10:07 PM CDT	Tornado Warning	MEG	Craighead, Greene, Mississippi, Poinsett	38 min
Apr 19, 10:21 PM CDT	Flash Flood Warning	MEG	Clay, Craighead, Cross, Greene, Mississippi, Poinsett	3 hr
Apr 19, 10:22 PM CDT	Severe Thunderstorm Warning	MEG	Crittenden, Cross, Lee, Phillips, St. Francis	38 min
Apr 19, 10:27 PM CDT	Severe Thunderstorm Warning	MEG	Mississippi, Poinsett	63 min
Apr 19, 10:30 PM CDT	Tornado Warning	MEG	Mississippi	45 min
Apr 19, 10:42 PM CDT	Tornado Warning	MEG	Crittenden, Mississippi, Poinsett	34 min
Apr 19, 10:52 PM CDT	Tornado Warning	MEG	Mississippi	23 min
Apr 19, 10:54 PM CDT	Tornado Warning	MEG	Mississippi	31 min
Apr 19, 10:59 PM CDT	Severe Thunderstorm Warning	MEG	Lee, Phillips	46 min
Apr 19, 11:40 PM CDT	Severe Thunderstorm Warning	MEG	Cross, Poinsett	50 min
Apr 19, 11:54 PM CDT	Tornado Warning	MEG	Craighead, Cross, Poinsett	35 min
Apr 20, 12:04 AM CDT	Severe Thunderstorm Warning	MEG	Craighead, Greene, Poinsett	41 min
Apr 20, 12:17 AM CDT	Severe Thunderstorm Warning	MEG	Crittenden, Cross, Mississippi, Poinsett	43 min
Apr 20, 12:29 AM CDT	Severe Thunderstorm Warning	MEG	Crittenden, Cross, Mississippi, Poinsett	46 min
Apr 20, 12:47 AM CDT	Severe Thunderstorm Warning	MEG	Crittenden, Cross, Lee, St. Francis	43 min
Apr 20, 12:52 AM CDT	Severe Thunderstorm Warning	MEG	Crittenden, Cross, Mississippi, Poinsett	38 min
Apr 20, 12:55 AM CDT	Severe Thunderstorm Warning	MEG	Lee, Phillips	50 min
Apr 20, 12:57 AM CDT	Severe Thunderstorm Warning	MEG	Phillips	48 min
Apr 20, 1:07 AM CDT	Flash Flood Warning	MEG	Crittenden, Cross, Mississippi, Poinsett	3 hr
Apr 20, 1:23 AM CDT	Severe Thunderstorm Warning	MEG	Crittenden, Cross, Mississippi, Poinsett, St. Francis	36 min
Apr 20, 1:39 AM CDT	Severe Thunderstorm Warning	MEG	Phillips	51 min
Apr 20, 1:45 AM CDT	Severe Thunderstorm Warning	MEG	Crittenden, Mississippi	45 min
Apr 20, 3:18 AM CDT	Flash Flood Watch	MEG	Crittenden, Cross, Lee, Phillips, St. Francis	30 hr
Apr 20, 4:10 PM CDT	Severe Thunderstorm Warning	MEG	Lee, Phillips	65 min
Apr 20, 4:51 PM CDT	Severe Thunderstorm Warning	MEG	Lee, Phillips	54 min
Apr 20, 4:54 PM CDT	Flash Flood Warning	MEG	Lee, Phillips, St. Francis	7 hr
Apr 20, 6:23 PM CDT	Flash Flood Warning	MEG	Crittenden, Lee	5 hr
Apr 19, 10:24 PM CDT	Severe Thunderstorm Warning	MEG	Pemiscot	66 min

Nearby

Tornado Warnings in Arkansas, 2011 Tornado Warnings in Missouri, 2011 Every tornado warning in 2011 Tornadoes in 2011

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.