Alert archive / Ohio / Severe Thunderstorm Warnings in 2020

Severe Thunderstorm Warning 175, NWS Wilmington, OH

July 19, 2020Darke County, Miami County, Shelby County, Ohio

NWS Wilmington, OH issued this severe thunderstorm warning at Jul 19, 2020, 3:38 PM EDT for Darke County, Miami County, Shelby County, Ohio. It was in force for 37 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: Jul 19, 2020, 3:38 PM EDT (19:38 UTC)
Expired: Jul 19, 2020, 4:15 PM EDT
In force: 37 min
Issued by: NWS Wilmington, OH
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Darke County, OH, Miami County, OH, Shelby County, OH

The radar

The Cincinnati radar (KILN), 95 km from the middle of the area, began a volume at 19:38 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, 7.6 hours before the alert went out and 95 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: 771 J/kg
Mixed-layer CIN: -69 J/kg
Mixed-layer LCL: 1065 m above ground
0-6 km bulk shear: 18 kt
0-1 km storm-relative helicity: 24 m²/s²
0-3 km storm-relative helicity: 53 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

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 Jul 19, 1:59 PM EDT, 1 hour 39 minutes earlier.

Area forecast discussion, Jul 19, 1:59 PM EDT, 1 hour 39 minutes before

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Hazardous weather outlook, Jul 19, 4:46 AM EDT, 10 hours 52 minutes before

Hazardous Weather Outlook
National Weather Service Wilmington OH
446 AM EDT Sun Jul 19 2020

INZ050-058-059-066-OHZ026-034-035-042>046-051>056-060>065-072-074-
200900-
Wayne-Fayette IN-Union IN-Franklin IN-Hardin-Mercer-Auglaize-Darke-
Shelby-Logan-Union OH-Delaware-Miami-Champaign-Clark-Madison-
Franklin OH-Licking-Preble-Montgomery-Greene-Fayette OH-Pickaway-
Fairfield-Clinton-Hocking-
446 AM EDT Sun Jul 19 2020

...HEAT ADVISORY IN EFFECT FROM NOON TODAY TO 8 PM EDT THIS
EVENING...

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

.DAY ONE...Today and tonight.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Heat Advisory.

Scattered thunderstorms will be possible late this afternoon and
evening. A few of the storms may be strong to severe. The main threat
will be damaging winds. Large hail will also be possible.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed, while following all local, state
and CDC guidelines.

INZ073>075-080-KYZ089>100-OHZ070-071-073-077>082-088-200900-
Ripley-Dearborn-Ohio-Switzerland-Carroll-Gallatin-Boone-Kenton-
Campbell-Owen-Grant-Pendleton-Bracken-Robertson-Mason-Lewis-Butler-
Warren-Ross-Hamilton-Clermont-Brown-Highland-Adams-Pike-Scioto-
446 AM EDT Sun Jul 19 2020

...HEAT ADVISORY IN EFFECT FROM NOON TODAY TO 8 PM EDT THIS
EVENING...

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

.DAY ONE...Today and tonight.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Heat Advisory.

Scattered thunderstorms will be possible late this afternoon and
evening. A few of the storms may be strong to severe. The main threat
will be damaging winds. Large hail will also be possible.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

Heat Indices will range between 95 and 100 degrees Monday afternoon.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed, while following all local, state
and CDC guidelines.

In the hours before

Special weather statement, Jul 19, 3:16 PM EDT, 22 minutes before

Special Weather Statement
National Weather Service Wilmington OH
316 PM EDT Sun Jul 19 2020

OHZ052-191945-
Champaign OH-
316 PM EDT Sun Jul 19 2020

...A STRONG THUNDERSTORM WILL AFFECT SOUTHWESTERN CHAMPAIGN COUNTY
UNTIL 345 PM EDT...

At 316 PM EDT, radar indicated a strong thunderstorm over St. Paris,
moving east at 35 mph.

STORM HAZARDS INCLUDE...
Winds to 40 mph...
Frequent cloud-to-ground lightning...

Locations impacted include...
Urbana, St. Paris, Christiansburg, Thackery, Millerstown, Westville,
Terre Haute and Powhattan.

Do not stay in the open or seek shelter under trees when lightning
threatens. Move indoors when a thunderstorm approaches.

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 4002 8369 4004 8404 4018 8402 4019 8367
TIME...MOT...LOC 1916Z 274DEG 30KT 4009 8398

KC

Special weather statement, Jul 19, 3:30 PM EDT, 8 minutes before

Special Weather Statement
National Weather Service Wilmington OH
330 PM EDT Sun Jul 19 2020

INZ050-OHZ034-035-042-043-051-060-192000-
Wayne IN-Auglaize OH-Darke OH-Shelby OH-Preble OH-Mercer OH-Miami OH-
330 PM EDT Sun Jul 19 2020

...A STRONG THUNDERSTORM WILL AFFECT NORTHERN WAYNE...SHELBY...
NORTHEASTERN PREBLE...DARKE...SOUTHWESTERN AUGLAIZE...SOUTHEASTERN
MERCER AND NORTHWESTERN MIAMI COUNTIES UNTIL 400 PM EDT...

At 330 PM EDT, radar indicated a strong thunderstorm near Ansonia,
moving east at 45 mph.

STORM HAZARDS INCLUDE...
Winds to 45 mph...
Frequent cloud-to-ground lightning...

Locations impacted include...
Sidney, Piqua, Greenville, New Bremen, Minster, Versailles,
Covington, Arcanum, Newport, Bradford, Hagerstown, Union City, Anna,
Fort Loramie, Jackson Center, Pleasant Hill, Ansonia, Botkins, New
Madison and Fountain City.

This includes I-75 in Ohio between mile markers 84 and 105.

Do not stay in the open or seek shelter under trees when lightning
threatens. Move indoors when a thunderstorm approaches.

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 4001 8520 4001 8481 4035 8480 4048 8434
      4048 8400 4046 8400 3992 8441 3991 8449
      3991 8520
TIME...MOT...LOC 1930Z 270DEG 39KT 4019 8471

KC

Special weather statement, Jul 19, 3:32 PM EDT, 6 minutes before

Special Weather Statement
National Weather Service Wilmington OH
332 PM EDT Sun Jul 19 2020

OHZ046-192000-
Delaware OH-
332 PM EDT Sun Jul 19 2020

...A STRONG THUNDERSTORM WILL AFFECT NORTHERN DELAWARE COUNTY UNTIL
400 PM EDT...

At 332 PM EDT, radar indicated a strong thunderstorm near Delaware,
moving east at 40 mph.

STORM HAZARDS INCLUDE...
Winds to 50 mph...
Frequent cloud-to-ground lightning...

Locations impacted include...
Delaware, Ashley, Radnor, Ostrander, Warrensburg, Delaware State
Park, Leonardsburg, Olive Green, Kilbourne and State Route 257 at US
Route 36.

This includes I-71 in Ohio between mile markers 132 and 138.

Do not stay in the open or seek shelter under trees when lightning
threatens. Move indoors when a thunderstorm approaches.

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 4042 8302 4042 8301 4041 8292 4037 8293
      4036 8293 4036 8288 4035 8274 4030 8275
      4025 8325 4043 8324 4043 8302
TIME...MOT...LOC 1932Z 252DEG 34KT 4032 8319

KC

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 19, 3:16 PM EDT	Special Weather Statement	ILN	Champaign	29 min
Jul 19, 3:30 PM EDT	Special Weather Statement	ILN	Darke, Shelby	30 min
Jul 19, 3:32 PM EDT	Special Weather Statement	ILN	Delaware	28 min
Jul 19, 3:55 PM EDT	Severe Thunderstorm Warning	ILN	Champaign, Logan, Miami, Shelby	50 min
Jul 19, 3:57 PM EDT	Special Weather Statement	ILN	Franklin	33 min
Jul 19, 4:01 PM EDT	Special Weather Statement	ILN	Miami, Preble	44 min
Jul 19, 4:31 PM EDT	Special Weather Statement	ILN	Champaign, Union	44 min
Jul 19, 4:35 PM EDT	Special Weather Statement	ILN	Montgomery	25 min
Jul 19, 4:38 PM EDT	Special Weather Statement	ILN	Clark	37 min
Jul 19, 4:44 PM EDT	Special Weather Statement	ILN	Butler, Montgomery, Preble	46 min
Jul 19, 4:48 PM EDT	Severe Thunderstorm Warning	ILN	Clinton, Fayette, Greene, Montgomery, Warren	27 min
Jul 19, 4:56 PM EDT	Severe Thunderstorm Warning	ILN	Butler, Greene, Montgomery, Warren	49 min
Jul 19, 5:06 PM EDT	Special Weather Statement	ILN	Franklin	24 min
Jul 19, 5:09 PM EDT	Special Weather Statement	ILN	Hamilton, Warren	51 min
Jul 19, 5:15 PM EDT	Severe Thunderstorm Warning	ILN	Clark, Clinton, Fayette, Greene, Madison, Warren	45 min
Jul 19, 5:16 PM EDT	Severe Thunderstorm Warning	ILN	Hamilton	44 min
Jul 19, 5:22 PM EDT	Special Weather Statement	ILN	Franklin, Licking	38 min
Jul 19, 5:38 PM EDT	Severe Thunderstorm Warning	ILN	Clinton, Fayette, Highland, Ross	52 min
Jul 19, 5:40 PM EDT	Special Weather Statement	ILN	Brown, Clermont	50 min
Jul 19, 5:48 PM EDT	Severe Thunderstorm Warning	ILN	Licking	27 min
Jul 19, 5:50 PM EDT	Special Weather Statement	ILN	Fairfield, Fayette, Pickaway	40 min
Jul 19, 6:04 PM EDT	Special Weather Statement	ILN	Highland, Pike, Ross	41 min
Jul 19, 6:25 PM EDT	Special Weather Statement	ILN	Hocking	50 min
Jul 19, 4:18 PM EDT	Special Weather Statement	ILN	Franklin	27 min

Nearby

Severe Thunderstorm Warnings in Ohio, 2020 Every severe thunderstorm warning in 2020

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.