Alert archive / Ohio / Winter Storm Warnings in 2018

Winter Storm Warning 1, NWS Wilmington, OH

January 12, 201810 counties in Ohio; Lewis County, Mason County, Robertson County, Kentucky

NWS Wilmington, OH issued this winter storm warning at Jan 12, 2018, 4:03 AM EST for 10 counties in Ohio; Lewis County, Mason County, Robertson County, Kentucky. It took effect at Jan 12, 2018, 2:00 PM EST. It was in force for 16 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: Jan 12, 2018, 4:03 AM EST (09:03 UTC)
In effect from: Jan 12, 2018, 2:00 PM EST
Expired: Jan 13, 2018, 5:48 AM EST
In force: 16 hr
Issued by: NWS Wilmington, OH

Counties Lewis County, KY, Mason County, KY, Robertson County, KY, Adams County, OH, Clinton County, OH, Fairfield County, OH, Fayette County, OH, Highland County, OH, Hocking County, OH, Pickaway County, OH, Pike County, OH, Ross County, OH, Scioto County, OH

The radar

The Cincinnati radar (KILN), 55 km from the middle of the area, began a volume at 09:06 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, 9.1 hours before the alert went out and 54 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: 613 m above ground
0-6 km bulk shear: 59 kt
0-1 km storm-relative helicity: 235 m²/s²
0-3 km storm-relative helicity: 254 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 winter storm 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 winter storm warning went out at Jan 12, 12:57 AM EST, 3 hours 6 minutes earlier.

Area forecast discussion, Jan 12, 12:57 AM EST, 3 hours 6 minutes before

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Hazardous weather outlook, Jan 11, 3:25 PM EST, 12 hours 38 minutes before

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In the hours before

Special weather statement, Jan 12, 1:43 AM EST, 2 hours 20 minutes before

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Nearby

Winter Storm Warnings in Ohio, 2018 Winter Storm Warnings in Kentucky, 2018 Every winter storm warning in 2018

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.