Alert archive / Ohio / Frost Advisories in 2019

Frost Advisory 3, NWS Charleston, WV

October 17, 20194 counties in West Virginia; 9 counties in Ohio; 4 counties in Kentucky

NWS Charleston, WV issued this frost advisory at Oct 17, 2019, 2:13 PM EDT for 4 counties in West Virginia; 9 counties in Ohio; 4 counties in Kentucky. It took effect at Oct 18, 2019, 1:00 AM EDT. It was in force for 8 hr.

The area

The counties it named.

The facts

Issued: Oct 17, 2019, 2:13 PM EDT (18:13 UTC)
In effect from: Oct 18, 2019, 1:00 AM EDT
Expired: Oct 18, 2019, 9:00 AM EDT
In force: 8 hr
Issued by: NWS Charleston, WV

Counties Boyd County, KY, Carter County, KY, Greenup County, KY, Lawrence County, KY, Athens County, OH, Gallia County, OH, Jackson County, OH, Lawrence County, OH, Meigs County, OH, Morgan County, OH, Perry County, OH, Vinton County, OH, Washington County, OH, Fayette County, WV, McDowell County, WV, Raleigh County, WV, Wyoming County, WV

The radar

The Charleston,WV radar (KRLX), 53 km from the middle of the area, began a volume at 18:12 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, 6.2 hours before the alert went out and 167 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: 926 m above ground
0-6 km bulk shear: 56 kt
0-1 km storm-relative helicity: 7 m²/s²
0-3 km storm-relative helicity: 68 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 frost advisory 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 frost advisory went out at Oct 16, 7:59 PM EDT, 18 hours 14 minutes earlier.

Area forecast discussion, Oct 16, 7:59 PM EDT, 18 hours 14 minutes before

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Nearby

Frost Advisories in Ohio, 2019 Frost Advisories in West Virginia, 2019 Frost Advisories in Kentucky, 2019 Every frost advisory in 2019

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.