Alert archive / Ohio / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 222, NWS Wilmington, OH

August 17, 2017Franklin County, Ohio

NWS Wilmington, OH issued this severe thunderstorm warning at Aug 17, 2017, 4:05 PM EDT for Franklin County, Ohio. It was in force for 13 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 17, 2017, 4:05 PM EDT (20:05 UTC)
Expired: Aug 17, 2017, 4:18 PM EDT
In force: 13 min
Issued by: NWS Wilmington, OH
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

County Franklin County, OH

The radar

The Cincinnati radar (KILN), 93 km from the middle of the area, began a volume at 20:09 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 nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 12:00Z, 8.1 hours before the alert went out and 90 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: 735 J/kg
Mixed-layer CIN: -34 J/kg
Mixed-layer LCL: 837 m above ground
0-6 km bulk shear: 32 kt
0-1 km storm-relative helicity: 92 m²/s²
0-3 km storm-relative helicity: 110 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 1.8

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 Wilmington, OH wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 17, 4:03 PM EDT, 2 minutes earlier.

Area forecast discussion, Aug 17, 4:03 PM EDT, 2 minutes before

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Hazardous weather outlook, Aug 17, 4:43 AM EDT, 11 hours 22 minutes before

Hazardous Weather Outlook
National Weather Service Wilmington OH
443 AM EDT Thu Aug 17 2017

INZ050-058-059-066-073>075-080-KYZ089>100-OHZ026-034-035-042>046-
051>056-060>065-070>074-077>082-088-180845-
Wayne-Fayette IN-Union IN-Franklin IN-Ripley-Dearborn-Ohio-
Switzerland-Carroll-Gallatin-Boone-Kenton-Campbell-Owen-Grant-
Pendleton-Bracken-Robertson-Mason-Lewis-Hardin-Mercer-Auglaize-Darke-
Shelby-Logan-Union OH-Delaware-Miami-Champaign-Clark-Madison-
Franklin OH-Licking-Preble-Montgomery-Greene-Fayette OH-Pickaway-
Fairfield-Butler-Warren-Clinton-Ross-Hocking-Hamilton-Clermont-Brown-
Highland-Adams-Pike-Scioto-
443 AM EDT Thu Aug 17 2017

This Hazardous Weather Outlook is for East Central Indiana,
Southeast Indiana, Northeast Kentucky, Northern Kentucky, Central
Ohio, Southwest Ohio and West Central Ohio.

.DAY ONE...Today and Tonight.
Showers and thunderstorms will increase in coverage this afternoon
and continue into this evening ahead of an approaching cold front. A
few of the storms could produce damaging winds. Also, heavy rain may
lead to localized flooding.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

In the hours before

Special weather statement, Aug 17, 3:18 PM EDT, 47 minutes before

Special Weather Statement
National Weather Service Wilmington OH
318 PM EDT THU AUG 17 2017

KYZ093-OHZ071-072-077>079-171945-
Campbell KY-Hamilton OH-Clermont OH-Brown OH-Warren OH-Clinton OH-
318 PM EDT THU AUG 17 2017

...A LINE OF STRONG THUNDERSTORMS WILL AFFECT NORTHERN CAMPBELL...
EASTERN HAMILTON...CLERMONT...NORTHWESTERN BROWN...SOUTHERN WARREN
AND CLINTON COUNTIES UNTIL 345 PM EDT...

At 317 PM EDT, radar indicated strong thunderstorms along a line
extending from 7 miles southeast of Waynesville to Dayton, Kentucky,
moving east at 25 mph.

STORM HAZARDS INCLUDE...
Winds to 40 mph...

Locations impacted include...
Cincinnati, Mason, Lebanon, Norwood, Fort Thomas, Newport,
Wilmington, Blue Ash, Loveland, Reading, Montgomery, Madeira,
Milford, Bellevue, Deer Park, Dayton, Blanchester, Southgate,
Forestville and Amelia.

This includes the following Interstates...
 I-71 in Ohio between mile markers 1 and 23, and between mile markers
29 and 43.
 I-75 in Ohio between mile markers 1 and 3.

To report hazardous weather conditions, go to our website at
weather.gov/iln and submit your report via social media, when you can
do so safely.

LAT...LON 3908 8450 3910 8451 3910 8458 3945 8414
      3953 8358 3938 8359 3927 8377 3922 8381
      3922 8384 3924 8383 3925 8386 3910 8387
      3897 8402
TIME...MOT...LOC 1917Z 272DEG 23KT 3947 8398 3911 8443

Franks

Special weather statement, Aug 17, 3:31 PM EDT, 34 minutes before

Special Weather Statement
National Weather Service Wilmington OH
331 PM EDT THU AUG 17 2017

KYZ090>097-OHZ078-172000-
Boone KY-Pendleton KY-Owen KY-Kenton KY-Campbell KY-Bracken KY-
Gallatin KY-Grant KY-Clermont OH-
331 PM EDT THU AUG 17 2017

...A LINE OF STRONG THUNDERSTORMS WILL AFFECT NORTHWESTERN BRACKEN...
KENTON...CAMPBELL...SOUTHERN BOONE...GRANT...OWEN...PENDLETON...
EASTERN GALLATIN AND SOUTHERN CLERMONT COUNTIES UNTIL 400 PM EDT...

At 331 PM EDT, radar indicated strong thunderstorms along a line
extending from Highland Heights to 7 miles west of Dry Ridge to 6
miles northwest of Owenton, moving east at 25 mph.

STORM HAZARDS INCLUDE...
Winds to 40 mph...

Locations impacted include...
Covington, Independence, Erlanger, Fort Thomas, Newport, Edgewood,
Alexandria, Highland Heights, Taylor Mill, Fort Wright, Williamstown,
Southgate, Walton, Falmouth, Claryville, Amelia, Crittenden, Wilder,
Bethel and New Richmond.

This includes the following Interstates...
 I-71 in Kentucky between mile markers 68 and 77.
 I-75 in Kentucky between mile markers 144 and 175.

To report hazardous weather conditions, go to our website at
weather.gov/iln and submit your report via social media, when you can
do so safely.

LAT...LON 3851 8498 3852 8498 3852 8503 3856 8501
      3857 8504 3857 8507 3872 8481 3908 8449
      3902 8432 3904 8432 3897 8403 3892 8403
      3851 8451 3849 8456 3842 8464
TIME...MOT...LOC 1931Z 278DEG 22KT 3904 8443 3872 8473 3858 8496

Franks

Special weather statement, Aug 17, 3:42 PM EDT, 23 minutes before

Special Weather Statement
National Weather Service Wilmington OH
342 PM EDT THU AUG 17 2017

OHZ053>055-063-064-172015-
Fayette OH-Madison OH-Franklin OH-Pickaway OH-Clark OH-
342 PM EDT THU AUG 17 2017

...A LINE OF STRONG THUNDERSTORMS WILL AFFECT SOUTHWESTERN
FRANKLIN...NORTHERN FAYETTE...NORTHWESTERN PICKAWAY...SOUTHEASTERN
CLARK AND MADISON COUNTIES UNTIL 415 PM EDT...

At 342 PM EDT, radar indicated strong thunderstorms along a line
extending from Choctaw Lake to near Sabina, moving east at 35 mph.

STORM HAZARDS INCLUDE...
Winds to 50 mph...
Pea size hail...
Very heavy rain...

Locations impacted include...
Columbus, Grove City, Washington Court House, London, Jefferson, West
Jefferson, Mount Sterling, Jeffersonville, Bloomingburg, New Holland,
Choctaw Lake, Lake Darby, Valleyview, Lafayette, South Solon, Midway,
Harrisburg, Orient, Milledgeville and Octa.

This includes the following Interstates...
 I-70 in Ohio between mile markers 70 and 86.
 I-71 in Ohio between mile markers 63 and 95.

Water will pond on roads and may quickly fill roadside ditches and
small streams.

To report hazardous weather conditions, go to our website at
weather.gov/iln and submit your report via social media, when you can
do so safely.

LAT...LON 3997 8307 3955 8323 3955 8367 4000 8353
TIME...MOT...LOC 1942Z 263DEG 30KT 3995 8347 3957 8363

Special weather statement, Aug 17, 3:45 PM EDT, 20 minutes before

Special Weather Statement
National Weather Service Wilmington OH
345 PM EDT THU AUG 17 2017

OHZ063-071>073-077>080-172015-
Hamilton OH-Clermont OH-Highland OH-Brown OH-Ross OH-Warren OH-
Fayette OH-Clinton OH-
345 PM EDT THU AUG 17 2017

...A LINE OF STRONG THUNDERSTORMS WILL AFFECT SOUTHEASTERN
HAMILTON...NORTHERN CLERMONT...NORTHWESTERN BROWN...SOUTHEASTERN
WARREN...SOUTHERN FAYETTE...CLINTON...HIGHLAND AND NORTHWESTERN ROSS
COUNTIES UNTIL 415 PM EDT...

At 344 PM EDT, radar indicated strong thunderstorms along a line
extending from near Sabina to Withamsville, moving east at 25 mph.

STORM HAZARDS INCLUDE...
Winds to 40 mph...
Torrential rainfall...

Locations impacted include...
Washington Court House, Wilmington, Milford, Hillsboro, Greenfield,
Blanchester, Forestville, Amelia, Mount Orab, Sabina, Williamsburg,
Batavia, Lynchburg, Leesburg, New Vienna, Sardinia, New Holland,
Coldstream, Salem Heights and Withamsville.

Water will pond on roads and may quickly fill roadside ditches and
small streams.

To report hazardous weather conditions, go to our website at
weather.gov/iln and submit your report via social media, when you can
do so safely.

LAT...LON 3906 8441 3955 8372 3955 8326 3952 8327
      3951 8317 3951 8315 3894 8387
TIME...MOT...LOC 1944Z 275DEG 24KT 3953 8366 3903 8427

Franks

Special weather statement, Aug 17, 3:58 PM EDT, 7 minutes before

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Special weather statement, Aug 17, 4:04 PM EDT, 1 minute before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 17, 2:36 PM EDT	Special Weather Statement	ILN	Hamilton	24 min
Aug 17, 2:41 PM EDT	Special Weather Statement	ILN	Clark	34 min
Aug 17, 2:50 PM EDT	Special Weather Statement	ILN	Greene	25 min
Aug 17, 3:12 PM EDT	Special Weather Statement	ILN	Champaign, Clark, Madison	33 min
Aug 17, 3:15 PM EDT	Special Weather Statement	ILN	Greene	30 min
Aug 17, 3:18 PM EDT	Special Weather Statement	ILN	Clermont, Clinton, Warren	27 min
Aug 17, 3:22 PM EDT	Severe Thunderstorm Warning	ILN	Champaign, Clark, Madison, Union	23 min
Aug 17, 3:42 PM EDT	Special Weather Statement	ILN	Fayette, Madison	33 min
Aug 17, 3:42 PM EDT	Severe Thunderstorm Warning	ILN	Delaware, Franklin, Madison, Union	18 min
Aug 17, 3:45 PM EDT	Special Weather Statement	ILN	Clermont, Clinton, Highland	30 min
Aug 17, 3:58 PM EDT	Special Weather Statement	ILN	Brown	32 min
Aug 17, 4:04 PM EDT	Special Weather Statement	ILN	Franklin, Pickaway	26 min
Aug 17, 4:15 PM EDT	Special Weather Statement	ILN	Fayette, Highland, Pickaway, Ross	30 min
Aug 17, 4:31 PM EDT	Special Weather Statement	ILN	Brown	14 min
Aug 17, 4:44 PM EDT	Special Weather Statement	ILN	Fairfield, Pickaway, Pike, Ross	31 min
Aug 17, 5:14 PM EDT	Special Weather Statement	ILN	Fairfield	16 min
Aug 17, 2:53 PM EDT	Special Weather Statement	ILN	Boone	37 min
Aug 17, 3:00 PM EDT	Special Weather Statement	ILN	Carroll, Gallatin	30 min
Aug 17, 3:31 PM EDT	Special Weather Statement	ILN	Campbell, Grant, Kenton, Owen, Pendleton	29 min
Aug 17, 7:35 PM EDT	Special Weather Statement	ILN	Campbell	25 min
Aug 17, 2:00 PM EDT	Special Weather Statement	ILN	Dearborn	30 min

Nearby

Severe Thunderstorm Warnings in Ohio, 2017 Every severe thunderstorm warning in 2017

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.