Alert archive / Arkansas / Tornado Warnings in 2007

Tornado Warning 2, NWS Memphis, TN

February 24, 2007Phillips County, Arkansas; Coahoma County, Mississippi

NWS Memphis, TN issued this tornado warning at Feb 24, 2007, 3:56 PM CST for Phillips County, Arkansas; Coahoma County, Mississippi. It was in force for 15 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
Feb 24, 2007, 3:56 PM CST (21:56 UTC)
Expired
Feb 24, 2007, 4:11 PM CST
In force
15 min
Issued by
NWS Memphis, TN
Area
Counties, with a storm outline in the text

Counties Phillips County, AR, Coahoma County, MS

The radar

The Memphis radar (KNQA), 122 km from the middle of the area, began a volume at 21:57 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.

The watch it was issued in

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

IssuedProductOfficeLasted
Feb 24, 1:10 PM CSTTornado Watch PDSSPC7 hr

The nearest sounding before it

Little Rock, AR (KLZK), launched 12:00Z, 9.9 hours before the alert went out and 74 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 2007-02-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 2007-02-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 555 square meters per square second.19395878Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
746 m above ground
0-6 km bulk shear
65 kt
0-1 km storm-relative helicity
555 m²/s²
0-3 km storm-relative helicity
565 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

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

000 
WFUS54 KMEG 242155
TORMEG
ARC107-MSC027-242230-
/O.NEW.KMEG.TO.W.0002.070224T2156Z-070224T2230Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MEMPHIS TN
356 PM CST SAT FEB 24 2007

THE NATIONAL WEATHER SERVICE IN MEMPHIS HAS ISSUED A

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

* UNTIL 430 PM CST

* AT 353 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  TORNADO NEAR FRIARS POINT...OR ABOUT 10 MILES NORTHEAST OF
  ELAINE...MOVING NORTHEAST AT 40 MPH.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO WEST HELENA
  AND HELENA

.IF NO BASEMENT 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.

.STAY TUNED TO THIS BROADCAST FOR THE LATEST UPDATES AND INFORMATION.
TO REPORT SEVERE WEATHER ONLY...CALL 1 800 4 3 2 0 8 7 5.

LAT...LON 3436 9076 3438 9080 3462 9061 3457 9055
      3452 9056 3444 9043 3443 9043 3436 9050
      3426 9063

$$
1 follow-up statement
000 
WWUS54 KMEG 242211
SVSMEG

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MEMPHIS TN
411 PM CST SAT FEB 24 2007

ARC107-MSC027-242221-
/O.CAN.KMEG.TO.W.0002.000000T0000Z-070224T2230Z/
PHILLIPS AR-COAHOMA MS-
411 PM CST SAT FEB 24 2007

...THE TORNADO WARNING FOR COAHOMA AND PHILLIPS COUNTIES IS
CANCELLED...

NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATES THE STORM WHICH
PROMPTED THE TORNADO WARNING IS NO LONGER A SEVERE WEATHER THREAT TO
THE WARNED AREA.

.A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA.

LAT...LON 3436 9076 3438 9080 3462 9061 3457 9055
      3452 9056 3444 9043 3443 9043 3436 9050
      3426 9063

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 24, 3:44 AM CSTWind AdvisoryMEGClay, Craighead, Crittenden, Cross, Greene, Lawrence and 6 more18 hr
Feb 24, 3:03 PM CSTTornado WarningMEGPhillips57 min
Feb 24, 4:32 PM CSTSevere Thunderstorm WarningMEGLee, Phillips28 min

Nearby

Tornado Warnings in Arkansas, 2007Tornado Warnings in Mississippi, 2007Every tornado warning in 2007Tornadoes in 2007

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.