Alert archive / Ohio / Freeze Warnings in 2017

Freeze Warning 7, NWS Wilmington, OH

May 7, 201719 counties in Ohio

NWS Wilmington, OH issued this freeze warning at May 7, 2017, 3:17 PM EDT for 19 counties in Ohio. It took effect at May 8, 2017, 2:00 AM EDT. It was in force for 7 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: May 7, 2017, 3:17 PM EDT (19:17 UTC)
In effect from: May 8, 2017, 2:00 AM EDT
Expired: May 8, 2017, 9:00 AM EDT
In force: 7 hr
Issued by: NWS Wilmington, OH

Counties Auglaize County, OH, Champaign County, OH, Clark County, OH, Clinton County, OH, Darke County, OH, Delaware County, OH, Fairfield County, OH, Greene County, OH, Hardin County, OH, Hocking County, OH, Licking County, OH, Logan County, OH, Mercer County, OH, Miami County, OH, Montgomery County, OH, Preble County, OH, Ross County, OH, Shelby County, OH, Union County, OH

The radar

The Cincinnati radar (KILN), 69 km from the middle of the area, began a volume at 19:16 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

Detroit, MI (KDTX), launched 12:00Z, 7.3 hours before the alert went out and 300 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1613 m above ground
0-6 km bulk shear: 41 kt
0-1 km storm-relative helicity: 67 m²/s²
0-3 km storm-relative helicity: 83 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 freeze 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 freeze warning went out at May 7, 1:50 PM EDT, 1 hour 27 minutes earlier.

Area forecast discussion, May 7, 1:50 PM EDT, 1 hour 27 minutes before

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Hazardous weather outlook, May 7, 3:24 AM EDT, 11 hours 53 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
May 7, 3:21 AM EDT	Frost Advisory	ILN	Adams, Brown, Butler, Clermont, Clinton, Fayette and 13 more	30 hr
May 7, 3:21 AM EDT	Freeze Watch	ILN	Auglaize, Champaign, Clark, Darke, Delaware, Fairfield and 9 more	12 hr

Nearby

Freeze Warnings in Ohio, 2017 Every freeze 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.