Alert archive / Ohio / Severe Thunderstorm Warnings in 2010

Severe Thunderstorm Warning 164, NWS Cleveland, OH

August 4, 2010Marion County, Ohio

NWS Cleveland, OH issued this severe thunderstorm warning at Aug 4, 2010, 1:11 PM EDT for Marion County, Ohio. It was in force for 49 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Aug 4, 2010, 1:11 PM EDT (17:11 UTC)
Expired: Aug 4, 2010, 2:00 PM EDT
In force: 49 min
Issued by: NWS Cleveland, OH
Area: Storm-based polygon

County Marion County, OH

The radar

The Cincinnati radar (KILN), 141 km from the middle of the area, began a volume at 17:14 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.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Aug 4, 10:37 AM EDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 12:00Z, 5.2 hours before the alert went out and 140 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 2520 J/kg
Mixed-layer CIN: -92 J/kg
Mixed-layer LCL: 858 m above ground
0-6 km bulk shear: 23 kt
0-1 km storm-relative helicity: 136 m²/s²
0-3 km storm-relative helicity: 167 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 6.4

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Cleveland, OH wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 4, 10:14 AM EDT, 2 hours 57 minutes earlier.

Area forecast discussion, Aug 4, 10:14 AM EDT, 2 hours 57 minutes before

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Hazardous weather outlook, Aug 4, 5:11 AM EDT, 8 hours before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CLEVELAND OH
511 AM EDT WED AUG 4 2010

LEZ061-142>149-162>169-OHZ003-006>014-017>023-027>033-036>038-047-
089-PAZ001>003-050915-
LAKE ERIE OPEN WATERS FROM RIPLEY TO BUFFALO NY-
MAUMEE BAY TO RENO BEACH OH-RENO BEACH TO THE ISLANDS OH-
THE ISLANDS TO VERMILION OH-VERMILION TO AVON POINT OH-
AVON POINT TO WILLOWICK OH-WILLOWICK TO GENEVA-ON-THE LAKE OH-GENEVA-
ON-THE-LAKE TO CONNEAUT OH-CONNEAUT OH TO RIPLEY NY-
LAKE ERIE OPEN WATERS FROM MAUMEE BAY TO RENO BEACH-
LAKE ERIE OPEN WATERS FROM RENO BEACH TO THE ISLANDS-
LAKE ERIE OPEN WATERS FROM THE ISLANDS TO VERMILION-
LAKE ERIE OPEN WATERS FROM VERMILION TO AVON POINT-
LAKE ERIE OPEN WATERS FROM AVON POINT TO WILLOWICK-
LAKE ERIE OPEN WATERS FROM WILLOWICK TO GENEVA-ON-THE-LAKE-
LAKE ERIE OPEN WATERS FROM GENEVA-ON-THE-LAKE TO CONNEAUT-
LAKE ERIE OPEN WATERS FROM CONNEAUT OH TO RIPLEY NY-LUCAS-WOOD-
OTTAWA-SANDUSKY-ERIE OH-LORAIN-CUYAHOGA-LAKE-GEAUGA-ASHTABULA INLAND-
HANCOCK-SENECA-HURON-MEDINA-SUMMIT-PORTAGE-TRUMBULL-WYANDOT-CRAWFORD-
RICHLAND-ASHLAND-WAYNE-STARK-MAHONING-MARION-MORROW-HOLMES-KNOX-
ASHTABULA LAKESHORE-NORTHERN ERIE-SOUTHERN ERIE-CRAWFORD PA-
511 AM EDT WED AUG 4 2010

THIS HAZARDOUS WEATHER OUTLOOK IS FOR LAKE ERIE...NORTH CENTRAL
OHIO...NORTHEAST OHIO...NORTHWEST OHIO AND NORTHWEST PENNSYLVANIA.

.DAY ONE...TODAY AND TONIGHT.

THERE IS A THREAT OF THUNDERSTORMS THIS AFTERNOON AND TONIGHT.
SOME OF THE THUNDERSTORMS COULD APPROACH SEVERE LEVELS AND
LOCALLY HEAVY RAIN IS ALSO POSSIBLE.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED.

In the hours before

Special weather statement, Aug 4, 11:23 AM EDT, 1 hour 48 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CLEVELAND OH
ISSUED BY NATIONAL WEATHER SERVICE BUFFALO NY
1123 AM EDT WED AUG 4 2010

OHZ003-006>008-017-018-027-036-041700-
LUCAS-WOOD-OTTAWA-SANDUSKY-HANCOCK-SENECA-WYANDOT-MARION-
INCLUDING THE CITIES OF...TOLEDO...BOWLING GREEN...PORT CLINTON...
FREMONT...FINDLAY...TIFFIN...UPPER SANDUSKY...CAREY...MARION
1123 AM EDT WED AUG 4 2010

...LINE OF THUNDERSTORMS ENTERING WESTERN OHIO...

AT 1115 AM A LINE OF GUSTY THUNDERSTORMS WAS CROSSING NORTHERN
INDIANA AND SOUTHERN MICHIGAN FROM WEST TO EAST. THIS LINE OF
STORMS IS EXPECTED TO ENTER INTO WESTERN OHIO...INCLUDING THE
CITIES OF TOLEDO...BOWLING GREEN AND FINDLAY BETWEEN 1215 PM AND
100 PM. AS THIS LINE OF ACTIVITY HOLDS TOGETHER IT WILL CROSS INTO
GIBSONBURG...TIFFIN AND UPPER SANDUSKY.

CURRENTLY WITHIN THIS LINE OF STORMS ARE CLOUD TO GROUND
LIGHTNING STRIKES...WIND GUSTS OF 40 MPH OR GREATER...AND A QUICK
BURST OF HEAVY RAINFALL THAT WILL REDUCE VISIBILITIES TO A MILE OR
LESS AT TIMES. THIS ACTIVITY IS EXPECTED TO BE STRONGEST TOWARDS
THE SOUTH...INCLUDING FINDLAY AND UPPER SANDUSKY.

EXPECT A HALF HOUR OF DOWNPOURS BEFORE THUNDERSTORMS LET UP TO
LIGHTER SHOWERS. MOTORISTS SHOULD ALSO BE AWARE OF ANY PONDING OF
WATER IN LOW LYING AREAS OR POOR DRAINAGE LOCATIONS.

The office that day

Everything else NWS Cleveland, OH issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Aug 4, 1:46 PM EDT	Severe Thunderstorm Warning	CLE	Knox, Morrow	59 min
Aug 4, 2:43 PM EDT	Severe Thunderstorm Warning	CLE	Stark, Wayne	62 min

Nearby

Severe Thunderstorm Warnings in Ohio, 2010 Every severe thunderstorm warning in 2010

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.