Alert archive / Ohio / Frost Advisories in 2019

Frost Advisory 5, NWS Wilmington, OH

October 18, 201922 counties in Ohio; Lewis County, Kentucky; 4 counties in Indiana

NWS Wilmington, OH issued this frost advisory at Oct 18, 2019, 3:20 PM EDT for 22 counties in Ohio; Lewis County, Kentucky; 4 counties in Indiana. It took effect at Oct 19, 2019, 3:00 AM EDT. It was in force for 7 hr.

The area

The counties it named.

The facts

Issued
Oct 18, 2019, 3:20 PM EDT (19:20 UTC)
In effect from
Oct 19, 2019, 3:00 AM EDT
Expired
Oct 19, 2019, 9:32 AM EDT
In force
7 hr
Issued by
NWS Wilmington, OH
All 27 counties

Fayette County, IN, Franklin County, IN, Union County, IN, Wayne County, IN, Lewis County, KY, Adams County, OH, Auglaize County, OH, Brown County, OH, Butler County, OH, Champaign County, OH, Clark County, OH, Clermont County, OH, Clinton County, OH, Darke County, OH, Greene County, OH, Hardin County, OH, Highland County, OH, Logan County, OH, Mercer County, OH, Miami County, OH, Montgomery County, OH, Pike County, OH, Preble County, OH, Ross County, OH, Scioto County, OH, Shelby County, OH, Warren County, OH

The radar

The Cincinnati radar (KILN), 33 km from the middle of the area, began a volume at 19:19 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

Pittsburgh, PA (KPIT), launched 12:00Z, 7.3 hours before the alert went out and 349 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-pSkew-T log-p diagram, Pittsburgh, PA at 12:00Z on 2019-10-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Pittsburgh, PA at 12:00Z on 2019-10-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 139 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
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
942 m above ground
0-6 km bulk shear
71 kt
0-1 km storm-relative helicity
139 m²/s²
0-3 km storm-relative helicity
208 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The office that day

Everything else NWS Wilmington, OH issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Oct 18, 3:20 PM EDTFreeze WarningILNDelaware, Fairfield, Fayette, Franklin, Hocking, Licking and 3 more18 hr

Nearby

Frost Advisories in Ohio, 2019Frost Advisories in Indiana, 2019Frost Advisories in Kentucky, 2019Every 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.