Alert archive / Ohio / Tornado Watches in 1997

Tornado Watch 583

July 8, 199723 counties in Indiana; 11 counties in Michigan; 24 counties in Ohio

The Storm Prediction Center issued this tornado watch at Jul 8, 1997, 2:30 PM EST for 23 counties in Indiana; 11 counties in Michigan; 24 counties in Ohio. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued
Jul 8, 1997, 2:30 PM EST (19:30 UTC)
Expired
Jul 8, 1997, 8:00 PM EST
In force
6 hr
Issued by
the Storm Prediction Center
All 58 counties

Adams County, IN, Allen County, IN, Blackford County, IN, DeKalb County, IN, Delaware County, IN, Elkhart County, IN, Fulton County, IN, Grant County, IN, Howard County, IN, Huntington County, IN, Jay County, IN, Kosciusko County, IN, LaGrange County, IN, Madison County, IN, Marshall County, IN, Miami County, IN, Noble County, IN, Saint Joseph County, IN, Steuben County, IN, Tipton County, IN, Wabash County, IN, Wells County, IN, Whitley County, IN, Branch County, MI, Calhoun County, MI, Cass County, MI, Hillsdale County, MI, Jackson County, MI, Lenawee County, MI, Macomb County, MI, Monroe County, MI, Saint Joseph County, MI, Washtenaw County, MI, Wayne County, MI, Allen County, OH, Ashland County, OH, Auglaize County, OH, Crawford County, OH, Defiance County, OH, Erie County, OH, Fulton County, OH, Hancock County, OH, Hardin County, OH, Henry County, OH, Huron County, OH, Lorain County, OH, Lucas County, OH, Medina County, OH, Mercer County, OH, Ottawa County, OH, Paulding County, OH, Putnam County, OH, Sandusky County, OH, Seneca County, OH, Van Wert County, OH, Williams County, OH, Wood County, OH, Wyandot County, OH

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
Jul 8, 2:38 PM ESTSevere Thunderstorm WarningIWXSteuben52 min
Jul 8, 4:23 PM ESTSevere Thunderstorm WarningCLEHenry37 min
Jul 8, 5:26 PM ESTSevere Thunderstorm WarningIWXLaGrange49 min
Jul 8, 5:46 PM ESTSevere Thunderstorm WarningGRRCalhoun, Jackson64 min
Jul 8, 6:02 PM ESTSevere Thunderstorm WarningDTXWashtenaw, Wayne63 min
Jul 8, 6:09 PM ESTSevere Thunderstorm WarningIWXSteuben51 min
Jul 8, 6:24 PM ESTSevere Thunderstorm WarningGRRHillsdale31 min
Jul 8, 6:25 PM ESTSevere Thunderstorm WarningIWXLaGrange50 min
Jul 8, 6:33 PM ESTSevere Thunderstorm WarningIWXNoble57 min
Jul 8, 6:44 PM ESTSevere Thunderstorm WarningDTXMacomb46 min
Jul 8, 7:02 PM ESTSevere Thunderstorm WarningDTXWashtenaw, Wayne48 min
Jul 8, 7:04 PM ESTSevere Thunderstorm WarningIWXDeKalb56 min
Jul 8, 7:13 PM ESTSevere Thunderstorm WarningIWXWilliams47 min
Jul 8, 7:35 PM ESTSevere Thunderstorm WarningIWXDefiance55 min

The nearest sounding before it

Detroit, MI (KDTX), launched 12:00Z, 7.5 hours before the alert went out and 154 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, Detroit, MI at 12:00Z on 1997-07-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 47 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, Detroit, MI at 12:00Z on 1997-07-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 197 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
47 J/kg
Mixed-layer CIN
-77 J/kg
Mixed-layer LCL
733 m above ground
0-6 km bulk shear
38 kt
0-1 km storm-relative helicity
197 m²/s²
0-3 km storm-relative helicity
249 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.5

Open this sounding in Storm Lab

The text

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

118 
WWUS9 KMKC 081857
SEL3  
MKC WW 081857
INZ000-OHZ000-MIZ000-LEZ000-090100-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 583
STORM PREDICTION CENTER NORMAN OK
257 PM EDT TUE JUL 8 1997

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

   NORTHEAST INDIANA                            
   NORTHWEST OHIO                               
   SOUTHEAST LOWER MICHIGAN                           
   WESTERN LAKE ERIE                          

EFFECTIVE THIS TUESDAY AFTERNOON AND EVENING FROM 330 PM UNTIL 900
PM EDT.

TORNADOES...HAIL TO 1 3/4 INCHES IN DIAMETER...THUNDERSTORM WIND
GUSTS TO 80 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE
AREAS.

THE TORNADO WATCH AREA IS ALONG AND 70 STATUTE MILES NORTH AND
SOUTH OF A LINE FROM 45 MILES SOUTH OF SOUTH BEND INDIANA TO 35
MILES NORTH OF CLEVELAND 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 582...

DISCUSSION...THREAT FOR SEVERE THUNDERSTORMS SHOULD INCREASE THIS
AFTERNOON AS DAYTIME HEATING DESTABILIZES AIR MASS. UNSEASONABLY
STRONG WIND FIELDS INDICATE A THREAT FOR DAMAGING WIND GUSTS AND
POSSIBLY ISOLATED TORNADES.


AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 1 3/4 INCHES.  EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 70 KNOTS.  A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
520.  MEAN STORM MOTION VECTOR 26035.


...VESCIO

420,0861 425,0815 405,0815 400,0861

Nearby

Tornado Watches in Ohio, 1997Tornado Watches in Indiana, 1997Tornado Watches in Michigan, 1997Every tornado watch in 1997

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.