Alert archive / Ohio / Tornado Watches in 2004

Tornado Watch 338

May 30, 20046 counties in Indiana; 7 counties in Kentucky; 56 counties in Ohio

The Storm Prediction Center issued this tornado watch at May 30, 2004, 3:55 PM EST for 6 counties in Indiana; 7 counties in Kentucky; 56 counties in Ohio. It was in force for 5 hr.

The area

The outline as issued.

The facts

Issued
May 30, 2004, 3:55 PM EST (20:55 UTC)
Expired
May 30, 2004, 9:00 PM EST
In force
5 hr
Issued by
the Storm Prediction Center
All 69 counties

Adams County, IN, Dearborn County, IN, Ohio County, IN, Switzerland County, IN, Union County, IN, Wayne County, IN, Boone County, KY, Bracken County, KY, Campbell County, KY, Gallatin County, KY, Grant County, KY, Kenton County, KY, Pendleton County, KY, Adams County, OH, Allen County, OH, Ashland County, OH, Auglaize County, OH, Brown County, OH, Butler County, OH, Champaign County, OH, Clark County, OH, Clermont County, OH, Clinton County, OH, Crawford County, OH, Darke County, OH, Defiance County, OH, Delaware County, OH, Erie County, OH, Fairfield County, OH, Fayette County, OH, Franklin County, OH, Fulton County, OH, Greene County, OH, Hamilton County, OH, Hancock County, OH, Hardin County, OH, Henry County, OH, Highland County, OH, Hocking County, OH, Huron County, OH, Jackson County, OH, Knox County, OH, Licking County, OH, Logan County, OH, Madison County, OH, Marion County, OH, Mercer County, OH, Miami County, OH, Montgomery County, OH, Morrow County, OH, Ottawa County, OH, Paulding County, OH, Pickaway County, OH, Pike County, OH, Preble County, OH, Putnam County, OH, Richland County, OH, Ross County, OH, Sandusky County, OH, Scioto County, OH, Seneca County, OH, Shelby County, OH, Union County, OH, Van Wert County, OH, Vinton County, OH, Warren County, OH, Williams County, OH, Wood County, OH, Wyandot County, OH

The radar

The Cincinnati radar (KILN), 48 km from the middle of the area, began a volume at 20:58 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

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

IssuedProductOfficeCountiesLasted
May 30, 4:52 PM ESTSevere Thunderstorm WarningILNClermont38 min
May 30, 5:10 PM ESTSevere Thunderstorm WarningILNBrown50 min
May 30, 5:20 PM ESTSevere Thunderstorm WarningILNClinton, Highland40 min
May 30, 5:47 PM ESTSevere Thunderstorm WarningILNPickaway43 min
May 30, 5:55 PM ESTSevere Thunderstorm WarningCLEHancock50 min
May 30, 5:59 PM ESTSevere Thunderstorm WarningILNHighland31 min
May 30, 6:04 PM ESTSevere Thunderstorm WarningCLEWyandot41 min
May 30, 6:14 PM ESTSevere Thunderstorm WarningCLEHuron, Seneca61 min
May 30, 6:16 PM ESTSevere Thunderstorm WarningILNRoss59 min
May 30, 6:23 PM ESTSevere Thunderstorm WarningCLECrawford37 min
May 30, 6:28 PM ESTTornado WarningILNAuglaize32 min
May 30, 6:30 PM ESTTornado WarningILNRoss45 min
May 30, 6:34 PM ESTTornado WarningILNHardin26 min
May 30, 6:46 PM ESTTornado WarningCLEMarion29 min
May 30, 6:47 PM ESTTornado WarningCLECrawford28 min
May 30, 7:00 PM ESTSevere Thunderstorm WarningCLERichland30 min
May 30, 7:10 PM ESTSevere Thunderstorm WarningCLEMorrow35 min
May 30, 7:12 PM ESTTornado WarningILNLogan33 min
May 30, 7:57 PM ESTSevere Thunderstorm WarningCLEKnox63 min

Discussions around it

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

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 12:00Z, 8.9 hours before the alert went out and 47 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, Cncnati-Daytn, OH at 12:00Z on 2004-05-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 58 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, Cncnati-Daytn, OH at 12:00Z on 2004-05-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 112 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
58 J/kg
Mixed-layer CIN
-139 J/kg
Mixed-layer LCL
799 m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
112 m²/s²
0-3 km storm-relative helicity
142 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

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

000 
WWUS20 KWNS 302056
SEL8  
SPC WW 302055
KYZ000-OHZ000-LEZ000-310200-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 338
NWS STORM PREDICTION CENTER NORMAN OK
455 PM EDT SUN MAY 30 2004

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

       NORTHEAST KENTUCKY
       WESTERN AND CENTRAL OHIO
       LAKE ERIE

EFFECTIVE THIS SUNDAY AFTERNOON AND EVENING FROM 455 PM UNTIL 1000
PM EDT.

TORNADOES...HAIL TO 1.5 INCHES IN DIAMETER...THUNDERSTORM WIND
GUSTS TO 65 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 15 MILES EAST NORTHEAST OF TOLEDO OHIO TO 45 MILES
SOUTHEAST OF CINCINNATI OHIO.

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.

OTHER WATCH INFORMATION...CONTINUE...WW 330...WW 331...WW 332...WW
333...WW 334...WW 335...WW 336...WW 337...

DISCUSSION...SUPERCELLS AND ASSOCIATED TORNADO THREAT EXPECTED TO
CONTINUE SPREADING ENEWD INTO OH AS WARM FRONT REDEVELOPS EWD. 
OTHER SEVERE STORMS...INCLUDING POSSIBLE BRIEF TORNADOES...MAY OCCUR
IN CONJUNCTION WITH EWD MOVING MCS IN NRN IND.

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 55 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
500. MEAN STORM MOTION VECTOR 27025.


...CORFIDI

413,0821 383,0823 383,0850 413,0845

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 30, 7:40 AM ESTTornado WatchSPCNewton5 hr
May 30, 10:04 AM ESTMesoscale DiscussionSPCGibson, Pike, Posey, Spencer, Vanderburgh, Warrick2 hr
May 30, 11:04 AM ESTMesoscale DiscussionSPCBenton, Blackford, Boone, Carroll, Cass, Clinton and 27 more116 min
May 30, 11:50 AM ESTTornado WatchSPCAdams, Allen, Bartholomew, Benton, Blackford, Boone and 70 more7 hr
May 30, 3:05 PM ESTMesoscale DiscussionSPCBartholomew, Blackford, Boone, Brown, Clark, Crawford and 47 more115 min
May 30, 4:25 PM ESTTornado WatchSPCJasper, Lake, Newton, Porter, White6 hr
May 30, 6:40 PM ESTTornado WatchSPCBenton, Fountain, Vermillion, Warren6 hr
May 30, 6:55 PM ESTTornado WatchSPCAdams, Allen, Bartholomew, Blackford, Boone, Brown and 75 more8 hr
May 30, 11:50 AM ESTMesoscale DiscussionSPCAnderson, Bath, Bell, Bourbon, Boyle, Bracken and 54 more115 min
May 30, 1:05 PM ESTTornado WatchSPCBallard, Fulton6 hr
May 30, 1:40 PM ESTTornado WatchSPCAdair, Anderson, Barren, Bath, Bell, Bourbon and 67 more7 hr
May 30, 3:20 PM ESTTornado WatchSPCCalloway, Fulton8 hr

Nearby

Tornado Watches in Ohio, 2004Tornado Watches in Kentucky, 2004Tornado Watches in Indiana, 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.