Alert archive / Ohio / Severe Thunderstorm Watches in 2000

Severe Thunderstorm Watch 652

August 6, 200026 counties in Indiana; 17 counties in Michigan; 27 counties in Ohio

The Storm Prediction Center issued this severe thunderstorm watch at Aug 6, 2000, 5:30 PM EST for 26 counties in Indiana; 17 counties in Michigan; 27 counties in Ohio. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued
Aug 6, 2000, 5:30 PM EST (22:30 UTC)
Expired
Aug 6, 2000, 11:00 PM EST
In force
6 hr
Issued by
the Storm Prediction Center
All 70 counties

Adams County, IN, Allen County, IN, Blackford County, IN, DeKalb County, IN, Delaware County, IN, Elkhart County, IN, Grant County, IN, Hamilton County, IN, Hancock County, IN, Henry County, IN, Howard County, IN, Huntington County, IN, Jay County, IN, Kosciusko County, IN, LaGrange County, IN, Madison County, IN, Marion County, IN, Miami County, IN, Noble County, IN, Randolph County, IN, Steuben County, IN, Tipton County, IN, Wabash County, IN, Wayne County, IN, Wells County, IN, Whitley County, IN, Barry County, MI, Branch County, MI, Calhoun County, MI, Cass County, MI, Eaton County, MI, Hillsdale County, MI, Ingham County, MI, Jackson County, MI, Kalamazoo County, MI, Lenawee County, MI, Livingston County, MI, Macomb County, MI, Monroe County, MI, Oakland County, MI, Saint Joseph County, MI, Washtenaw County, MI, Wayne County, MI, Allen County, OH, Auglaize County, OH, Champaign County, OH, Clark County, OH, Darke County, OH, Defiance County, OH, Fulton County, OH, Hancock County, OH, Hardin County, OH, Henry County, OH, Logan County, OH, Lucas County, OH, Madison County, OH, Marion County, OH, Mercer County, OH, Miami County, OH, Ottawa County, OH, Paulding County, OH, Putnam County, OH, Sandusky County, OH, Seneca County, OH, Shelby County, OH, Union County, OH, Van Wert County, OH, Williams County, OH, Wood County, OH, Wyandot County, OH

The radar

The Northern Indiana radar (KIWX), 75 km from the middle of the area, began a volume at 22:33 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

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

IssuedProductOfficeCountiesLasted
Aug 6, 5:41 PM ESTSevere Thunderstorm WarningIWXLaGrange, Noble49 min
Aug 6, 5:57 PM ESTSevere Thunderstorm WarningIWXElkhart53 min
Aug 6, 6:14 PM ESTSevere Thunderstorm WarningIWXDeKalb46 min
Aug 6, 6:37 PM ESTSevere Thunderstorm WarningIWXKosciusko53 min
Aug 6, 6:43 PM ESTSevere Thunderstorm WarningIWXElkhart47 min
Aug 6, 6:44 PM ESTSevere Thunderstorm WarningIWXWilliams46 min
Aug 6, 6:47 PM ESTSevere Thunderstorm WarningIWXMiami53 min
Aug 6, 6:53 PM ESTSevere Thunderstorm WarningIWXLaGrange, Noble, Whitley67 min
Aug 6, 6:53 PM ESTSevere Thunderstorm WarningIWXWabash67 min
Aug 6, 7:07 PM ESTSevere Thunderstorm WarningGRRKalamazoo, Van Buren53 min
Aug 6, 7:11 PM ESTSevere Thunderstorm WarningIWXSteuben49 min
Aug 6, 7:16 PM ESTSevere Thunderstorm WarningIWXAllen, DeKalb64 min
Aug 6, 7:16 PM ESTSevere Thunderstorm WarningIWXHuntington64 min
Aug 6, 7:16 PM ESTSevere Thunderstorm WarningIWXFulton54 min
Aug 6, 7:29 PM ESTSevere Thunderstorm WarningIWXHenry51 min
Aug 6, 7:38 PM ESTSevere Thunderstorm WarningIWXDefiance, Paulding52 min
Aug 6, 7:39 PM ESTSevere Thunderstorm WarningIWXWells41 min
Aug 6, 7:40 PM ESTSevere Thunderstorm WarningGRRBarry, Calhoun50 min
Aug 6, 7:46 PM ESTSevere Thunderstorm WarningCLELucas, Wood59 min
Aug 6, 7:55 PM ESTSevere Thunderstorm WarningIWXVan Wert45 min
Aug 6, 8:07 PM ESTSevere Thunderstorm WarningIWXHenry, Putnam53 min
Aug 6, 8:11 PM ESTTornado WarningCLEWood34 min
Aug 6, 8:20 PM ESTSevere Thunderstorm WarningCLEOttawa, Sandusky55 min
Aug 6, 8:27 PM ESTSevere Thunderstorm WarningCLEHancock63 min
Aug 6, 8:34 PM ESTSevere Thunderstorm WarningIWXAllen46 min
Aug 6, 8:50 PM ESTSevere Thunderstorm WarningCLESeneca, Wyandot55 min
Aug 6, 8:55 PM ESTSevere Thunderstorm WarningINDDelaware, Madison35 min
Aug 6, 10:04 PM ESTSevere Thunderstorm WarningILNShelby41 min
Aug 6, 10:11 PM ESTSevere Thunderstorm WarningINDMarion49 min
Aug 6, 10:19 PM ESTSevere Thunderstorm WarningINDHancock, Shelby26 min
Aug 6, 10:43 PM ESTSevere Thunderstorm WarningINDHancock, Henry, Rush32 min

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 12:00Z, 10.5 hours before the alert went out and 199 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 2000-08-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1589 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 2000-08-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 453 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
1589 J/kg
Mixed-layer CIN
-95 J/kg
Mixed-layer LCL
845 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
453 m²/s²
0-3 km storm-relative helicity
498 m²/s²
Significant tornado parameter
2.0
Supercell composite
14.2

Open this sounding in Storm Lab

The text

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

977 
WWUS9 KMKC 062209
SEL2  
MKC WW 062201
INZ000-MIZ000-OHZ000-LEZ000-070400-

URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 652
STORM PREDICTION CENTER NORMAN OK
601 PM EDT SUN AUG 6 2000

THE STORM PREDICTION CENTER HAS ISSUED A
SEVERE THUNDERSTORM WATCH FOR PORTIONS OF

   CENTRAL AND NORTHEASTERN INDIANA                               
   SOUTHERN LOWER MICHIGAN                           
   WESTERN OHIO                               
   WESTERN LAKE ERIE                          

EFFECTIVE THIS SUNDAY NIGHT AND MONDAY MORNING FROM 630 PM UNTIL
MIDNIGHT EDT.

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

THE SEVERE THUNDERSTORM WATCH AREA IS ALONG AND 85 STATUTE MILES
EAST AND WEST OF A LINE FROM 25 MILES WEST SOUTHWEST OF DAYTON OHIO
TO 5 MILES NORTH OF LANSING MICHIGAN.

REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE
FAVORABLE FOR 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 649...WW 650...WW 651...

DISCUSSION...THUNDERSTORM CLUSTER WILL MOVE EASTWARD INTO WATCH
AREA AS STRONG MID LEVEL SHORT WAVE TROUGH APPROACHES AXIS OF VERY
UNSTABLE AIR. MID LEVEL FLOW NEAR 50 KT AND DRY INTRUSION ALOFT
INDICATE PRIMARY THREAT OF DAMAGING WINDS AND LARGE HAIL.

AVIATION...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 24035.

...ROGASH

425,0825 394,0830 394,0861 425,0861

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 6, 4:00 PM ESTSevere Thunderstorm WatchSPCBenton, Boone, Carroll, Cass, Clinton, Fountain and 16 more6 hr

Nearby

Severe Thunderstorm Watches in Ohio, 2000Severe Thunderstorm Watches in Indiana, 2000Severe Thunderstorm Watches in Michigan, 2000Every severe thunderstorm watch in 2000

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.