Alert archive / Ohio / Frost Advisories in 2010

Frost Advisory 8, NWS Cleveland, OH

October 21, 201023 counties in Ohio

NWS Cleveland, OH issued this frost advisory at Oct 21, 2010, 3:34 PM EDT for 23 counties in Ohio. It took effect at Oct 22, 2010, 3:00 AM EDT. It was in force for 6 hr.

The area

The counties it named.

The facts

Issued: Oct 21, 2010, 3:34 PM EDT (19:34 UTC)
In effect from: Oct 22, 2010, 3:00 AM EDT
Expired: Oct 22, 2010, 9:00 AM EDT
In force: 6 hr
Issued by: NWS Cleveland, OH

All 23 counties

Ashland County, OH, Crawford County, OH, Erie County, OH, Hancock County, OH, Holmes County, OH, Huron County, OH, Knox County, OH, Lorain County, OH, Lucas County, OH, Mahoning County, OH, Marion County, OH, Medina County, OH, Morrow County, OH, Ottawa County, OH, Portage County, OH, Richland County, OH, Sandusky County, OH, Seneca County, OH, Stark County, OH, Summit County, OH, Wayne County, OH, Wood County, OH, Wyandot County, OH

The radar

The Cleveland radar (KCLE), 69 km from the middle of the area, began a volume at 19:38 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

Detroit, MI (KDTX), launched 12:00Z, 7.6 hours before the alert went out and 204 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: 864 m above ground
0-6 km bulk shear: 37 kt
0-1 km storm-relative helicity: 33 m²/s²
0-3 km storm-relative helicity: 73 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 Cleveland, OH wrote its last area forecast discussion before this frost advisory went out at Oct 21, 3:24 PM EDT, 10 minutes earlier.

Area forecast discussion, Oct 21, 3:24 PM EDT, 10 minutes before

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Hazardous weather outlook, Oct 21, 5:58 AM EDT, 9 hours 36 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Oct 21, 12:28 AM EDT	Gale Warning	CLE		4 hr
Oct 21, 4:00 AM EDT	Small Craft Advisory	CLE		24 hr

Nearby

Frost Advisories in Ohio, 2010 Every frost advisory in 2010

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.