Alert archive / Ohio / Freeze Warnings in 2020

Freeze Warning 1, NWS Wilmington, OH

April 9, 202017 counties in Ohio; Boone County, Campbell County, Kenton County, Kentucky; 7 counties in Indiana

NWS Wilmington, OH issued this freeze warning at Apr 9, 2020, 3:49 PM EDT for 17 counties in Ohio; Boone County, Campbell County, Kenton County, Kentucky; 7 counties in Indiana. It took effect at Apr 10, 2020, 4:00 AM EDT. It was in force for 5 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: Apr 9, 2020, 3:49 PM EDT (19:49 UTC)
In effect from: Apr 10, 2020, 4:00 AM EDT
Expired: Apr 10, 2020, 9:00 AM EDT
In force: 5 hr
Issued by: NWS Wilmington, OH

All 27 counties

Dearborn County, IN, Fayette County, IN, Franklin County, IN, Ohio County, IN, Ripley County, IN, Union County, IN, Wayne County, IN, Boone County, KY, Campbell County, KY, Kenton County, KY, Auglaize County, OH, Butler County, OH, Champaign County, OH, Clark County, OH, Clermont County, OH, Clinton County, OH, Darke County, OH, Greene County, OH, Hamilton County, OH, Hardin County, OH, Logan County, OH, Mercer County, OH, Miami County, OH, Montgomery County, OH, Preble County, OH, Shelby County, OH, Warren County, OH

The radar

The Cincinnati radar (KILN), 60 km from the middle of the area, began a volume at 19:54 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, 7.8 hours before the alert went out and 61 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: 958 m above ground
0-6 km bulk shear: 85 kt
0-1 km storm-relative helicity: 0 m²/s²
0-3 km storm-relative helicity: 62 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 Apr 9, 2:04 PM EDT, 1 hour 45 minutes earlier.

Area forecast discussion, Apr 9, 2:04 PM EDT, 1 hour 45 minutes before

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Hazardous weather outlook, Apr 9, 4:58 AM EDT, 10 hours 51 minutes before

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In the hours before

Local storm report, Apr 9, 1:30 PM EDT, 2 hours 19 minutes before

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Local storm report, Apr 9, 2:55 PM EDT, 54 minutes before

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Local storm report, Apr 9, 3:06 PM EDT, 43 minutes before

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Local storm report, Apr 9, 3:13 PM EDT, 36 minutes before

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Local storm report, Apr 9, 3:18 PM EDT, 31 minutes before

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Local storm report, Apr 9, 3:47 PM EDT, 2 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
Apr 8, 9:20 PM EDT	Special Weather Statement	ILN	Auglaize, Darke, Mercer, Shelby	40 min
Apr 8, 9:42 PM EDT	Severe Thunderstorm Warning	ILN	Butler, Montgomery, Preble	51 min
Apr 8, 9:46 PM EDT	Severe Thunderstorm Warning	ILN	Hamilton	59 min
Apr 8, 9:56 PM EDT	Special Weather Statement	ILN	Logan, Miami, Shelby	49 min
Apr 8, 10:02 PM EDT	Severe Thunderstorm Warning	ILN	Butler, Warren	58 min
Apr 8, 10:02 PM EDT	Severe Thunderstorm Warning	ILN	Brown, Clermont, Clinton, Highland	43 min
Apr 8, 10:09 PM EDT	Special Weather Statement	ILN	Adams, Brown, Highland	51 min
Apr 8, 10:15 PM EDT	Severe Thunderstorm Warning	ILN	Clermont, Hamilton	45 min
Apr 8, 10:17 PM EDT	Severe Thunderstorm Warning	ILN	Butler, Greene, Montgomery, Warren	31 min
Apr 8, 10:26 PM EDT	Tornado Warning	ILN	Clermont, Hamilton	34 min
Apr 8, 10:30 PM EDT	Severe Thunderstorm Warning	ILN	Clinton, Fayette, Greene, Warren	60 min
Apr 8, 10:34 PM EDT	Severe Thunderstorm Warning	ILN	Adams, Brown, Highland, Pike	41 min
Apr 8, 10:42 PM EDT	Severe Thunderstorm Warning	ILN	Brown, Clermont, Highland	48 min
Apr 8, 10:45 PM EDT	Tornado Warning	ILN	Brown, Clermont	30 min
Apr 8, 10:48 PM EDT	Severe Thunderstorm Warning	ILN	Clinton, Fayette, Highland	57 min
Apr 8, 10:48 PM EDT	Tornado Warning	ILN	Clermont	22 min
Apr 8, 10:53 PM EDT	Special Weather Statement	ILN	Scioto	37 min
Apr 8, 10:57 PM EDT	Tornado Warning	ILN	Brown, Clermont, Clinton, Highland	33 min
Apr 8, 11:03 PM EDT	Tornado Warning	ILN	Adams, Brown, Clermont	31 min
Apr 8, 11:06 PM EDT	Severe Thunderstorm Warning	ILN	Adams, Brown, Highland	54 min
Apr 8, 11:13 PM EDT	Severe Thunderstorm Warning	ILN	Pike, Ross	62 min
Apr 8, 11:21 PM EDT	Tornado Warning	ILN	Highland	24 min
Apr 8, 11:23 PM EDT	Severe Thunderstorm Warning	ILN	Adams, Pike, Scioto	60 min
Apr 8, 11:44 PM EDT	Tornado Warning	ILN	Adams, Scioto	20 min
Apr 9, 12:11 AM EDT	Special Weather Statement	ILN	Ross	34 min
Apr 9, 3:49 PM EDT	Freeze Watch	ILN	Adams, Auglaize, Brown, Butler, Champaign, Clark and 26 more	12 hr
Apr 8, 10:13 PM EDT	Tornado Warning	ILN	Boone, Gallatin	32 min
Apr 8, 10:23 PM EDT	Severe Thunderstorm Warning	ILN	Carroll, Gallatin, Grant, Owen, Pendleton	39 min
Apr 8, 10:28 PM EDT	Tornado Warning	ILN	Boone, Campbell, Gallatin, Grant, Kenton, Pendleton	32 min
Apr 8, 10:34 PM EDT	Tornado Warning	ILN	Campbell, Kenton	26 min
Apr 8, 10:53 PM EDT	Severe Thunderstorm Warning	ILN	Bracken, Grant, Owen, Pendleton, Robertson	52 min
Apr 8, 9:08 PM EDT	Severe Thunderstorm Warning	ILN	Fayette, Franklin, Ripley, Union, Wayne	67 min

Nearby

Freeze Warnings in Ohio, 2020 Freeze Warnings in Indiana, 2020 Freeze Warnings in Kentucky, 2020 Every freeze 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.