Alert archive / Arkansas / Tornado Watches in 2004

Tornado Watch 118

April 24, 200441 counties in Arkansas; 9 counties in Missouri

The Storm Prediction Center issued this tornado watch at Apr 24, 2004, 12:10 PM CDT for 41 counties in Arkansas; 9 counties in Missouri. It was in force for 8 hr.

The area

The outline as issued.

The facts

Issued
Apr 24, 2004, 12:10 PM CDT (17:10 UTC)
Expired
Apr 24, 2004, 8:00 PM CDT
In force
8 hr
Issued by
the Storm Prediction Center
All 50 counties

Arkansas County, AR, Bradley County, AR, Calhoun County, AR, Clark County, AR, Clay County, AR, Cleburne County, AR, Cleveland County, AR, Craighead County, AR, Crittenden County, AR, Cross County, AR, Dallas County, AR, Desha County, AR, Drew County, AR, Faulkner County, AR, Fulton County, AR, Grant County, AR, Greene County, AR, Hot Spring County, AR, Independence County, AR, Izard County, AR, Jackson County, AR, Jefferson County, AR, Lawrence County, AR, Lee County, AR, Lincoln County, AR, Lonoke County, AR, Mississippi County, AR, Monroe County, AR, Nevada County, AR, Ouachita County, AR, Phillips County, AR, Poinsett County, AR, Prairie County, AR, Pulaski County, AR, Randolph County, AR, Saline County, AR, Sharp County, AR, St. Francis County, AR, Stone County, AR, White County, AR, Woodruff County, AR, Butler County, MO, Carter County, MO, Dunklin County, MO, New Madrid County, MO, Oregon County, MO, Pemiscot County, MO, Ripley County, MO, Scott County, MO, Stoddard County, MO

The radar

The Little Rock radar (KLZK), 39 km from the middle of the area, began a volume at 17:11 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.

Warnings issued inside it

15 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

IssuedProductOfficeCountiesLasted
Apr 24, 1:28 PM CDTSevere Thunderstorm WarningLZKFaulkner, White42 min
Apr 24, 1:29 PM CDTSevere Thunderstorm WarningLZKGrant, Hot Spring46 min
Apr 24, 2:03 PM CDTSevere Thunderstorm WarningLZKSaline37 min
Apr 24, 3:26 PM CDTSevere Thunderstorm WarningLZKJefferson44 min
Apr 24, 3:48 PM CDTSevere Thunderstorm WarningLZKLonoke42 min
Apr 24, 4:02 PM CDTTornado WarningLZKLonoke28 min
Apr 24, 4:07 PM CDTFlash Flood WarningLZKIzard118 min
Apr 24, 4:33 PM CDTSevere Thunderstorm WarningLZKPrairie47 min
Apr 24, 5:03 PM CDTSevere Thunderstorm WarningLZKWoodruff42 min
Apr 24, 5:54 PM CDTSevere Thunderstorm WarningPAHButler, Ripley51 min
Apr 24, 6:10 PM CDTSevere Thunderstorm WarningMEGCross, Poinsett50 min
Apr 24, 6:25 PM CDTSevere Thunderstorm WarningMEGCraighead50 min
Apr 24, 7:00 PM CDTTornado WarningPAHStoddard, Wayne45 min
Apr 24, 7:13 PM CDTSevere Thunderstorm WarningMEGCraighead17 min
Apr 24, 7:35 PM CDTFlash Flood WarningPAHButler3 hr

Discussions around it

SPC mesoscale discussions over the same counties from four hours before the watch to its end.

The nearest sounding before it

Little Rock, AR (KLZK), launched 12:00Z, 5.2 hours before the alert went out and 172 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 2004-04-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 535 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Little Rock, AR at 12:00Z on 2004-04-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 255 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
535 J/kg
Mixed-layer CIN
-51 J/kg
Mixed-layer LCL
671 m above ground
0-6 km bulk shear
42 kt
0-1 km storm-relative helicity
255 m²/s²
0-3 km storm-relative helicity
243 m²/s²
Significant tornado parameter
0.0
Supercell composite
5.0

Open this sounding in Storm Lab

The text

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

877 
WWUS20 KWNS 241709
SEL8  
SPC WW 241710
ARZ000-MOZ000-250100-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 118
NWS STORM PREDICTION CENTER NORMAN OK
1210 PM CDT SAT APR 24 2004

THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF 

       CENTRAL AND EASTERN ARKANSAS
       SOUTHEAST MISSOURI INCLUDING THE BOOTHEEL

EFFECTIVE THIS SATURDAY AFTERNOON AND EVENING FROM 1210 PM UNTIL
800 PM CDT.

TORNADOES...HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS
TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.

THE TORNADO WATCH AREA IS ALONG AND 70 STATUTE MILES EAST AND WEST
OF A LINE FROM 20 MILES NORTH OF POPLAR BLUFF MISSOURI TO 60 MILES
SOUTH SOUTHWEST OF PINE BLUFF ARKANSAS.

REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR
TORNADOES AND SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA.
PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR THREATENING
WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE
WARNINGS.

DISCUSSION...ISOLATED SUPERCELL HAS RECENTLY DEVELOPED OVER CENTRAL
AR.  THIS ACTIVITY IS DEVELOPING WITHIN AN INCREASINGLY UNSTABLE
ENVIRONMENT THAT WILL BECOME FAVORABLE FOR TORNADIC DEVELOPMENT AS
THE AFTERNOON PROGRESSES.  OTHER SUPERCELLS SHOULD FORM IN THE NEXT
FEW HOURS...BEFORE SPREADING INTO PORTIONS OF SERN MO BY MID
AFTERNOON.

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND
GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500.
MEAN STORM MOTION VECTOR 22030.


...DARROW/EVANS

370,0891 332,0910 332,0933 370,0914

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 23, 7:05 PM CDTMesoscale DiscussionSPCBenton, Carroll, Crawford, Franklin, Logan, Madison and 3 more25 min
Apr 23, 7:35 PM CDTSevere Thunderstorm WatchSPCBenton, Carroll, Crawford, Franklin, Madison, Scott and 2 more6 hr
Apr 23, 9:43 PM CDTMesoscale DiscussionSPCBenton, Carroll, Crawford, Franklin, Madison, Scott and 2 more62 min
Apr 23, 11:33 PM CDTMesoscale DiscussionSPCBenton, Carroll, Crawford, Franklin, Madison, Scott and 2 more57 min
Apr 24, 1:40 AM CDTSevere Thunderstorm WatchSPCArkansas, Clark, Cleburne, Cleveland, Conway, Crawford and 31 more4 hr
Apr 24, 4:16 AM CDTMesoscale DiscussionSPCArkansas, Clark, Cleveland, Conway, Dallas, Desha and 24 more59 min
Apr 24, 11:50 AM CDTMesoscale DiscussionSPCArkansas, Ashley, Bradley, Calhoun, Chicot, Clay and 36 more55 min
Apr 24, 12:35 PM CDTSevere Thunderstorm WatchSPCAshley, Chicot, Columbia, Union6 hr
Apr 24, 3:23 PM CDTMesoscale DiscussionSPCArkansas, Clay, Craighead, Crittenden, Cross, Desha and 18 more67 min
Apr 24, 5:04 PM CDTMesoscale DiscussionSPCChicot26 min
Apr 24, 5:08 PM CDTMesoscale DiscussionSPCClay, Craighead, Greene, Jackson, Lawrence, Mississippi and 2 more2 hr
Apr 24, 6:40 PM CDTTornado WatchSPCClay, Mississippi5 hr
Apr 24, 4:22 PM CDTMesoscale DiscussionSPCAndrew, Atchison, Buchanan, Cass, Clay, Clinton and 4 more113 min

Nearby

Tornado Watches in Arkansas, 2004Tornado Watches in Missouri, 2004Every tornado watch in 2004

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.