Alert archive / Ohio / Special Weather Statements in 2021

Special Weather Statement, NWS Wilmington, OH

August 7, 2021Miami County, Ohio

NWS Wilmington, OH issued this special weather statement at Aug 7, 2021, 4:41 PM EDT for Miami County, Ohio. It was in force for 34 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Aug 7, 2021, 4:41 PM EDT (20:41 UTC)
Expired: Aug 7, 2021, 5:15 PM EDT
In force: 34 min
Issued by: NWS Wilmington, OH
Hail: 0.00 in
Wind: 50

County Miami County, OH

The radar

The Cincinnati radar (KILN), 92 km from the middle of the area, began a volume at 20:40 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, 8.7 hours before the alert went out and 91 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: 815 J/kg
Mixed-layer CIN: -30 J/kg
Mixed-layer LCL: 973 m above ground
0-6 km bulk shear: 19 kt
0-1 km storm-relative helicity: 13 m²/s²
0-3 km storm-relative helicity: 26 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.3

Open this sounding in Storm Lab

The text

As transmitted.

592 
WWUS81 KILN 072041
SPSILN

Special Weather Statement
National Weather Service Wilmington OH
441 PM EDT Sat Aug 7 2021
 
OHZ043-051>053-072115-
Champaign OH-Shelby OH-Clark OH-Miami OH-
441 PM EDT Sat Aug 7 2021

...A STRONG THUNDERSTORM WILL IMPACT PORTIONS OF SOUTHEASTERN SHELBY,
WESTERN CHAMPAIGN, NORTHWESTERN CLARK AND NORTHEASTERN MIAMI COUNTIES
THROUGH 515 PM EDT...

At 441 PM EDT, a strong thunderstorm was reported near Sidney, moving
southeast at 20 mph.

HAZARD...Wind gusts up to 50 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around 
         unsecured objects.

Locations impacted include...
Sidney, Piqua, St. Paris, Christiansburg, Fletcher, Port Jefferson,
Lockington, Thackery, Westville, Rosewood, Carysville, Haven View,
Ballou, Plattsville, Kiser Lake State Park, Millerstown, State Route
41 at State Route 235, Pemberton and Dialton.

This includes I-75 in Ohio between mile markers 83 and 91.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a sturdy building. 

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 4034 8410 4029 8401 4027 8401 4027 8398
      4015 8377 3996 8403 4021 8427
TIME...MOT...LOC 2041Z 314DEG 16KT 4023 8412 

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...50 MPH

$$

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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 7, 2:12 PM EDT	Special Weather Statement	ILN	Auglaize	33 min
Aug 7, 2:22 PM EDT	Special Weather Statement	ILN	Shelby	23 min
Aug 7, 3:18 PM EDT	Special Weather Statement	ILN	Delaware	27 min
Aug 7, 3:33 PM EDT	Special Weather Statement	ILN	Union	27 min
Aug 7, 3:48 PM EDT	Special Weather Statement	ILN	Union	27 min
Aug 7, 4:15 PM EDT	Special Weather Statement	ILN	Delaware	30 min
Aug 7, 4:30 PM EDT	Special Weather Statement	ILN	Madison	30 min
Aug 7, 4:45 PM EDT	Special Weather Statement	ILN	Franklin	30 min
Aug 7, 4:47 PM EDT	Areal Flood Advisory	ILN	Union	3 hr
Aug 7, 5:02 PM EDT	Special Weather Statement	ILN	Darke	28 min
Aug 7, 5:04 PM EDT	Areal Flood Advisory	ILN	Delaware, Franklin, Licking	3 hr
Aug 7, 5:11 PM EDT	Special Weather Statement	ILN	Franklin	34 min
Aug 7, 5:43 PM EDT	Special Weather Statement	ILN	Greene	32 min
Aug 7, 5:51 PM EDT	Severe Thunderstorm Warning	ILN	Darke	39 min
Aug 7, 6:09 PM EDT	Areal Flood Advisory	ILN	Montgomery	3 hr
Aug 7, 6:20 PM EDT	Severe Thunderstorm Warning	ILN	Wayne	55 min
Aug 7, 6:48 PM EDT	Areal Flood Advisory	ILN	Wayne	3 hr
Aug 7, 7:14 PM EDT	Special Weather Statement	ILN	Fayette	31 min
Aug 7, 7:34 PM EDT	Severe Thunderstorm Warning	ILN	Fayette, Wayne	41 min

Nearby

Special Weather Statements in Ohio, 2021 Every special weather statement in 2021

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.