Alert archive / Arkansas / Tornado Warnings in 2011

Tornado Warning 46, NWS Memphis, TN

April 24, 2011Greene County, Arkansas

NWS Memphis, TN issued this tornado warning at Apr 24, 2011, 5:45 PM CDT for Greene County, Arkansas. It was in force for 30 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
Apr 24, 2011, 5:45 PM CDT (22:45 UTC)
Expired
Apr 24, 2011, 6:15 PM CDT
In force
30 min
Issued by
NWS Memphis, TN
Area
Storm-based polygon

County Greene County, AR

The radar

The Memphis radar (KNQA), 100 km from the middle of the area, began a volume at 22:48 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

TimeReportWhereRemark
Apr 24, 5:58 PM CDTTSTM WND DMG2 Nw Paragould, ARTREES DOWN ON COUNTY ROAD 628. REPORT RELAYED BY KAIT IN JONESBORO.

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.

IssuedProductOfficeLasted
Apr 24, 12:27 PM CDTTornado WatchSPC7 hr

The nearest sounding before it

Little Rock, AR (KLZK), launched 12:00Z, 10.8 hours before the alert went out and 148 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-pSkew-T log-p diagram, Little Rock, AR at 12:00Z on 2011-04-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1899 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Little Rock, AR at 12:00Z on 2011-04-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 189 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
1899 J/kg
Mixed-layer CIN
-57 J/kg
Mixed-layer LCL
664 m above ground
0-6 km bulk shear
47 kt
0-1 km storm-relative helicity
189 m²/s²
0-3 km storm-relative helicity
23 m²/s²
Significant tornado parameter
0.3
Supercell composite
2.0

Open this sounding in Storm Lab

The text

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

603 
WFUS54 KMEG 242245
TORMEG
ARC055-242315-
/O.NEW.KMEG.TO.W.0046.110424T2245Z-110424T2315Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MEMPHIS TN
545 PM CDT SUN APR 24 2011

THE NATIONAL WEATHER SERVICE IN MEMPHIS HAS ISSUED A

* TORNADO WARNING FOR...
  CENTRAL GREENE COUNTY IN EASTERN ARKANSAS...

* UNTIL 615 PM CDT

* AT 545 PM CDT...TRAINED WEATHER SPOTTERS REPORTED A FUNNEL CLOUD
  NEAR CROWLEYS RIDGE STATE PARK...MOVING NORTHEAST AT 40 MPH.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  MARMADUKE...PARAGOULD AND CROWLEYS RIDGE STATE PARK.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

.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.

&&

LAT...LON 3608 9034 3597 9055 3598 9071 3619 9062
      3626 9032
TIME...MOT...LOC 2245Z 242DEG 35KT 3607 9060

$$
1 follow-up statement
981 
WWUS54 KMEG 242303
SVSMEG

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MEMPHIS TN
603 PM CDT SUN APR 24 2011

ARC055-242315-
/O.CON.KMEG.TO.W.0046.000000T0000Z-110424T2315Z/
GREENE AR-
603 PM CDT SUN APR 24 2011

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 615 PM CDT FOR EASTERN
GREENE COUNTY...

AT 603 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO.  THIS TORNADO WAS LOCATED NEAR HALLIDAY...OR NEAR
MARMADUKE...MOVING NORTHEAST AT 40 MPH.

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO MARMADUKE...
PARAGOULD...BARD...GAINESVILLE...NOXBURN...HALLIDAY...COTTON BELT AND
BETHEL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

LAT...LON 3608 9034 3597 9055 3598 9060 3622 9050
      3626 9032
TIME...MOT...LOC 2303Z 242DEG 35KT 3615 9041

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 23, 8:26 PM CDTSevere Thunderstorm WarningMEGRandolph49 min
Apr 23, 9:11 PM CDTSevere Thunderstorm WarningMEGClay, Randolph49 min
Apr 23, 9:33 PM CDTFlash Flood WarningMEGClay, Randolph5 hr
Apr 23, 10:16 PM CDTSpecial Weather StatementMEGClay29 min
Apr 23, 10:26 PM CDTSevere Thunderstorm WarningMEGClay34 min
Apr 23, 11:52 PM CDTFlash Flood WarningMEGClay, Greene3 hr
Apr 23, 11:52 PM CDTSevere Thunderstorm WarningMEGClay, Greene, Randolph38 min
Apr 24, 2:32 AM CDTFlash Flood WarningMEGClay, Randolph107 min
Apr 24, 2:41 AM CDTSpecial Weather StatementMEGCross34 min
Apr 24, 3:01 AM CDTSpecial Weather StatementMEGClay29 min
Apr 24, 3:22 AM CDTSpecial Weather StatementMEGClay, Greene23 min
Apr 24, 12:16 PM CDTRiver Flood WarningMEGCraighead25 days
Apr 24, 12:16 PM CDTRiver Flood WarningMEGMississippi, Poinsett23 days
Apr 24, 2:38 PM CDTFlash Flood WatchMEGCraighead, Crittenden, Cross, Lee, Mississippi, Phillips and 2 more3 days
Apr 24, 3:06 PM CDTSevere Thunderstorm WarningMEGLawrence, Randolph54 min
Apr 24, 4:55 PM CDTSevere Thunderstorm WarningMEGGreene, Lawrence, Randolph50 min
Apr 24, 5:32 PM CDTSevere Thunderstorm WarningMEGClay, Greene43 min
Apr 24, 6:09 PM CDTTornado WarningMEGClay, Greene36 min
Apr 24, 6:14 PM CDTSevere Thunderstorm WarningMEGClay, Greene46 min

Nearby

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