Alert archive / Arkansas / Tornado Warnings in 2007

Tornado Warning 9, NWS Memphis, TN

April 3, 2007Clay County, Arkansas

NWS Memphis, TN issued this tornado warning at Apr 3, 2007, 5:25 PM CDT for Clay County, Arkansas. It was in force for 50 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 3, 2007, 5:25 PM CDT (22:25 UTC)
Expired
Apr 3, 2007, 6:15 PM CDT
In force
50 min
Issued by
NWS Memphis, TN
Area
Counties, with a storm outline in the text

County Clay County, AR

The radar

The Memphis radar (KNQA), 129 km from the middle of the area, began a volume at 22:26 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 3, 5:32 PM CDTHAIL 1Corning, AR

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 3, 3:12 PM CDTTornado WatchSPC7 hr

The nearest sounding before it

Little Rock, AR (KLZK), launched 12:00Z, 10.4 hours before the alert went out and 180 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 2007-04-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1013 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 2007-04-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 109 square meters per square second.1939587897Sfc1 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
1013 J/kg
Mixed-layer CIN
-152 J/kg
Mixed-layer LCL
824 m above ground
0-6 km bulk shear
23 kt
0-1 km storm-relative helicity
109 m²/s²
0-3 km storm-relative helicity
122 m²/s²
Significant tornado parameter
0.1
Supercell composite
1.0

Open this sounding in Storm Lab

The text

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

000 
WFUS54 KMEG 032225
TORMEG
ARC021-032315-
/O.NEW.KMEG.TO.W.0009.070403T2225Z-070403T2315Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MEMPHIS TN
525 PM CDT TUE APR 3 2007

THE NATIONAL WEATHER SERVICE IN MEMPHIS HAS ISSUED A

* TORNADO WARNING FOR...
  CLAY COUNTY IN EASTERN ARKANSAS...

* UNTIL 615 PM CDT

* AT 522 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR CORNING...
  MOVING EAST AT 35 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  HICKORIA...MCDOUGAL...POLLARD...GREENWAY...PIGGOTT AND ST. FRANCIS

.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 3648 9071 3630 9071 3625 9005 3648 9013

$$
3 follow-up statements
000 
WWUS54 KMEG 032246
SVSMEG

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MEMPHIS TN
546 PM CDT TUE APR 3 2007

ARC021-032315-
/O.CON.KMEG.TO.W.0009.000000T0000Z-070403T2315Z/
CLAY AR-
546 PM CDT TUE APR 3 2007

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

AT 543 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO.  THIS TORNADO WAS LOCATED 6 MILES NORTHWEST OF
RECTOR...MOVING EAST AT 40 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO 
GREENWAY AND PIGGOTT.

AT 532 PM CDT...A TRAINED SPOTTER REPORTED QUARTER SIZE HAIL IN 
NORTH CORNING.

.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 3644 9075 3628 9074 3621 9014 3639 9008

$$
000 
WWUS54 KMEG 032259
SVSMEG

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MEMPHIS TN
600 PM CDT TUE APR 3 2007

ARC021-032315-
/O.CON.KMEG.TO.W.0009.000000T0000Z-070403T2315Z/
CLAY AR-
600 PM CDT TUE APR 3 2007

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

AT 555 PM CDT...LOCAL LAW ENFORCEMENT REPORTED A TORNADO.  THIS
TORNADO WAS LOCATED NEAR PIGGOTT...MOVING EAST AT 40 MPH.

THE TORNADO WILL OTHERWISE REMAIN OVER MAINLY RURAL AREAS OF THE
INDICATED COUNTY..

.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 3644 9075 3628 9074 3624 9022 3621 9014
      3639 9008 3648 9015

$$
000 
WWUS54 KMEG 032316
SVSMEG

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MEMPHIS TN
616 PM CDT TUE APR 3 2007

ARC021-032326-
/O.EXP.KMEG.TO.W.0009.000000T0000Z-070403T2315Z/
CLAY AR-
616 PM CDT TUE APR 3 2007

...THE TORNADO WARNING FOR CLAY COUNTY HAS BEEN ALLOWED TO EXPIRE...

AT 612 PM CDT...WEATHER SERVICE DOPPLER RADAR INDICATED THAT THE
THUNDERSTORMS WHICH PROMPTED THE WARNING HAVE WEAKENED...AND NO
LONGER POSE AN IMMEDIATE THREAT TO LIFE OR PROPERTY. THEREFORE...THE
TORNADO WARNING WILL BE ALLOWED TO EXPIRE.

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

LAT...LON 3644 9075 3628 9074 3624 9022 3621 9014
      3639 9008 3648 9015

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 3, 4:23 PM CDTSevere Thunderstorm WarningMEGClay, Randolph67 min
Apr 3, 4:54 PM CDTSevere Thunderstorm WarningMEGLawrence66 min
Apr 3, 5:24 PM CDTFlash Flood WarningMEGClay3 hr
Apr 3, 5:30 PM CDTSevere Thunderstorm WarningMEGRandolph30 min
Apr 3, 5:35 PM CDTSevere Thunderstorm WarningMEGGreene55 min
Apr 3, 6:29 PM CDTSevere Thunderstorm WarningMEGGreene31 min
Apr 3, 6:35 PM CDTSevere Thunderstorm WarningMEGCraighead40 min
Apr 3, 6:51 PM CDTTornado WarningMEGCraighead24 min

Nearby

Tornado Warnings in Arkansas, 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.