Alert archive / Ohio / Special Weather Statements in 2021

Special Weather Statement, NWS Wilmington, OH

June 21, 2021Mercer County, Ohio

NWS Wilmington, OH issued this special weather statement at Jun 21, 2021, 4:15 AM EDT for Mercer County, Ohio. It was in force for 45 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: Jun 21, 2021, 4:15 AM EDT (08:15 UTC)
Expired: Jun 21, 2021, 5:00 AM EDT
In force: 45 min
Issued by: NWS Wilmington, OH

County Mercer County, OH

The radar

The Northern Indiana radar (KIWX), 131 km from the middle of the area, began a volume at 08:17 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 00:00Z, 8.3 hours before the alert went out and 147 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: 1412 J/kg
Mixed-layer CIN: -10 J/kg
Mixed-layer LCL: 1197 m above ground
0-6 km bulk shear: 34 kt
0-1 km storm-relative helicity: 75 m²/s²
0-3 km storm-relative helicity: 112 m²/s²
Significant tornado parameter: 0.4
Supercell composite: 5.2

Open this sounding in Storm Lab

The text

As transmitted.

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Jun 21, 3:05 AM EDT, 1 hour 10 minutes earlier.

Area forecast discussion, Jun 21, 3:05 AM EDT, 1 hour 10 minutes before

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Hazardous weather outlook, Jun 21, 3:35 AM EDT, 40 minutes before

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In the hours before

Special weather statement, Jun 21, 4:15 AM EDT, 0 minutes 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
Jun 21, 4:51 AM EDT	Special Weather Statement	ILN	Auglaize, Hardin, Mercer	39 min
Jun 21, 5:21 AM EDT	Special Weather Statement	ILN	Hardin	39 min
Jun 21, 12:03 PM EDT	Special Weather Statement	ILN	Delaware	27 min
Jun 21, 12:22 PM EDT	Special Weather Statement	ILN	Delaware	23 min
Jun 21, 12:44 PM EDT	Special Weather Statement	ILN	Delaware	31 min
Jun 21, 1:14 PM EDT	Special Weather Statement	ILN	Licking	31 min
Jun 21, 1:43 PM EDT	Special Weather Statement	ILN	Licking	32 min
Jun 21, 2:00 PM EDT	Special Weather Statement	ILN	Highland, Ross	45 min
Jun 21, 2:38 PM EDT	Special Weather Statement	ILN	Ross	37 min
Jun 21, 2:58 PM EDT	Special Weather Statement	ILN	Hocking	32 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.