Alert archive / Ohio / Severe Thunderstorm Watches in 1997

Severe Thunderstorm Watch 692

August 16, 199744 counties in Ohio; 7 counties in Pennsylvania

The Storm Prediction Center issued this severe thunderstorm watch at Aug 16, 1997, 4:15 PM EDT for 44 counties in Ohio; 7 counties in Pennsylvania. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued
Aug 16, 1997, 4:15 PM EDT (20:15 UTC)
Expired
Aug 16, 1997, 10:00 PM EDT
In force
6 hr
Issued by
the Storm Prediction Center
All 51 counties

Allen County, OH, Ashland County, OH, Ashtabula County, OH, Auglaize County, OH, Carroll County, OH, Champaign County, OH, Clark County, OH, Columbiana County, OH, Coshocton County, OH, Crawford County, OH, Cuyahoga County, OH, Delaware County, OH, Erie County, OH, Fayette County, OH, Franklin County, OH, Geauga County, OH, Greene County, OH, Hancock County, OH, Hardin County, OH, Holmes County, OH, Huron County, OH, Knox County, OH, Lake County, OH, Licking County, OH, Logan County, OH, Lorain County, OH, Madison County, OH, Mahoning County, OH, Marion County, OH, Medina County, OH, Miami County, OH, Morrow County, OH, Pickaway County, OH, Portage County, OH, Richland County, OH, Seneca County, OH, Shelby County, OH, Stark County, OH, Summit County, OH, Trumbull County, OH, Tuscarawas County, OH, Union County, OH, Wayne County, OH, Wyandot County, OH, Butler County, PA, Clarion County, PA, Crawford County, PA, Erie County, PA, Lawrence County, PA, Mercer County, PA, Venango County, PA

The radar

The Cleveland radar (KCLE), 77 km from the middle of the area, began a volume at 20:19 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

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

IssuedProductOfficeCountiesLasted
Aug 16, 4:22 PM EDTTornado WarningCLEGeauga38 min
Aug 16, 4:30 PM EDTSevere Thunderstorm WarningCLEMedina60 min
Aug 16, 4:35 PM EDTTornado WarningCLELorain, Medina55 min
Aug 16, 4:38 PM EDTSevere Thunderstorm WarningPBZCoshocton67 min
Aug 16, 4:43 PM EDTSevere Thunderstorm WarningCLEHolmes, Knox62 min
Aug 16, 4:45 PM EDTTornado WarningCLETrumbull45 min
Aug 16, 4:59 PM EDTSevere Thunderstorm WarningCLEErie, Huron61 min
Aug 16, 5:01 PM EDTSevere Thunderstorm WarningCLECuyahoga59 min
Aug 16, 5:03 PM EDTSevere Thunderstorm WarningPBZMercer57 min
Aug 16, 5:04 PM EDTSevere Thunderstorm WarningCLEGeauga, Lake56 min
Aug 16, 5:18 PM EDTTornado WarningPBZMercer57 min
Aug 16, 5:25 PM EDTSevere Thunderstorm WarningCLELorain65 min
Aug 16, 5:27 PM EDTFlash Flood WarningCLELorain2 hr
Aug 16, 5:39 PM EDTSevere Thunderstorm WarningCLETrumbull51 min
Aug 16, 5:45 PM EDTTornado WarningCLEMedina60 min
Aug 16, 5:46 PM EDTSevere Thunderstorm WarningPBZVenango59 min
Aug 16, 5:48 PM EDTTornado WarningCLETrumbull42 min
Aug 16, 5:51 PM EDTFlash Flood WarningCLEMedina2 hr
Aug 16, 6:00 PM EDTTornado WarningPBZMercer60 min
Aug 16, 6:04 PM EDTSevere Thunderstorm WarningCLEErie41 min
Aug 16, 6:06 PM EDTSevere Thunderstorm WarningCLEHuron, Seneca69 min
Aug 16, 6:09 PM EDTTornado WarningCLESummit66 min
Aug 16, 6:12 PM EDTFlash Flood WarningCLETrumbull2 hr
Aug 16, 6:13 PM EDTFlash Flood WarningPBZMercer4 hr
Aug 16, 6:16 PM EDTTornado WarningCLETrumbull59 min
Aug 16, 6:20 PM EDTSevere Thunderstorm WarningCLELorain55 min
Aug 16, 6:30 PM EDTTornado WarningCLELorain, Medina60 min
Aug 16, 6:32 PM EDTSevere Thunderstorm WarningPBZButler, Venango58 min
Aug 16, 6:40 PM EDTSevere Thunderstorm WarningPBZLawrence65 min
Aug 16, 6:44 PM EDTTornado WarningCLEWayne61 min
Aug 16, 6:47 PM EDTTornado WarningCLEAshland43 min
Aug 16, 7:03 PM EDTSevere Thunderstorm WarningPBZMercer57 min
Aug 16, 7:05 PM EDTTornado WarningCLEStark55 min
Aug 16, 7:08 PM EDTSevere Thunderstorm WarningPBZClarion, Jefferson67 min
Aug 16, 7:12 PM EDTTornado WarningCLESummit48 min
Aug 16, 7:15 PM EDTSevere Thunderstorm WarningCLEMahoning45 min
Aug 16, 7:22 PM EDTSevere Thunderstorm WarningPBZColumbiana68 min
Aug 16, 7:26 PM EDTTornado WarningCLEAshland49 min
Aug 16, 7:35 PM EDTSevere Thunderstorm WarningPBZButler, Lawrence55 min
Aug 16, 7:38 PM EDTFlash Flood WarningCLEAshland, Wayne67 min
Aug 16, 7:51 PM EDTSevere Thunderstorm WarningPBZCarroll69 min
Aug 16, 7:56 PM EDTSevere Thunderstorm WarningCLEKnox, Richland64 min
Aug 16, 8:03 PM EDTSevere Thunderstorm WarningCLEErie57 min
Aug 16, 8:21 PM EDTSevere Thunderstorm WarningCLEMarion54 min
Aug 16, 8:25 PM EDTSevere Thunderstorm WarningCLEHolmes50 min
Aug 16, 8:29 PM EDTSevere Thunderstorm WarningCLEHancock61 min

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 12:00Z, 8.3 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 1997-08-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2440 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 1997-08-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 116 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
2440 J/kg
Mixed-layer CIN
-28 J/kg
Mixed-layer LCL
564 m above ground
0-6 km bulk shear
16 kt
0-1 km storm-relative helicity
116 m²/s²
0-3 km storm-relative helicity
89 m²/s²
Significant tornado parameter
0.0
Supercell composite
2.3

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 16, 8:15 AM EDTSevere Thunderstorm WatchSPCAshtabula, Cuyahoga, Erie, Fulton, Geauga, Henry and 9 more4 hr
Aug 16, 2:45 PM EDTSevere Thunderstorm WatchSPCDefiance, Fulton, Henry, Lucas, Ottawa, Paulding and 5 more6 hr
Aug 16, 11:00 AM EDTSevere Thunderstorm WatchSPCBradford, Cameron, Clarion, Clinton, Crawford, Elk and 12 more6 hr
Aug 16, 3:00 PM EDTSevere Thunderstorm WatchSPCBerks, Bradford, Bucks, Carbon, Columbia, Dauphin and 21 more6 hr
Aug 16, 7:30 PM EDTSevere Thunderstorm WatchSPCAllegheny, Armstrong, Beaver, Bedford, Blair, Butler and 20 more5 hr

Nearby

Severe Thunderstorm Watches in Ohio, 1997Severe Thunderstorm Watches in Pennsylvania, 1997Every severe thunderstorm 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; radar from the NEXRAD Level II archive.