Alert archive / Ohio / Freeze Warnings in 2023

Freeze Warning 1, NWS Charleston, WV

April 18, 20234 counties in Ohio

NWS Charleston, WV issued this freeze warning at Apr 18, 2023, 2:04 PM EDT for 4 counties in Ohio. It took effect at Apr 19, 2023, 12:00 AM EDT. It was in force for 9 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 18, 2023, 2:04 PM EDT (18:04 UTC)
In effect from: Apr 19, 2023, 12:00 AM EDT
Expired: Apr 19, 2023, 9:00 AM EDT
In force: 9 hr
Issued by: NWS Charleston, WV

Counties Athens County, OH, Morgan County, OH, Perry County, OH, Vinton County, OH

The radar

The Charleston,WV radar (KRLX), 136 km from the middle of the area, began a volume at 18:09 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, 6.1 hours before the alert went out and 141 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: 1091 m above ground
0-6 km bulk shear: 79 kt
0-1 km storm-relative helicity: 70 m²/s²
0-3 km storm-relative helicity: 217 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 Charleston, WV wrote its last area forecast discussion before this freeze warning went out at Apr 18, 1:59 PM EDT, 5 minutes earlier.

Area forecast discussion, Apr 18, 1:59 PM EDT, 5 minutes before

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Hazardous weather outlook, Apr 18, 1:59 PM EDT, 5 minutes before

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        The site you requested is temporarily down for maintenance or an unexpected outage.
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The office that day

Everything else NWS Charleston, WV issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 18, 4:38 AM EDT	Red Flag Warning	RLX	Barbour, Boone, Braxton, Calhoun, Clay, Fayette and 17 more	15 hr
Apr 18, 2:04 PM EDT	Frost Advisory	RLX	Barbour, Boone, Braxton, Cabell, Calhoun, Clay and 24 more	19 hr

Nearby

Freeze Warnings in Ohio, 2023 Every freeze warning in 2023

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.