Alert archive / Ohio / Lake Effect Snow Warnings in 2013

Lake Effect Snow Warning 1, NWS Cleveland, OH

January 20, 20134 counties in Ohio; Crawford County, Erie County, Pennsylvania

NWS Cleveland, OH issued this lake effect snow warning at Jan 20, 2013, 3:20 PM EST for 4 counties in Ohio; Crawford County, Erie County, Pennsylvania. It took effect at Jan 21, 2013, 5:12 AM EST. It was in force for 3 days. 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 20, 2013, 3:20 PM EST (20:20 UTC)
In effect from: Jan 21, 2013, 5:12 AM EST
Expired: Jan 24, 2013, 10:00 AM EST
In force: 3 days
Issued by: NWS Cleveland, OH

Counties Ashtabula County, OH, Cuyahoga County, OH, Geauga County, OH, Lake County, OH, Crawford County, PA, Erie County, PA

The radar

The Cleveland radar (KCLE), 92 km from the middle of the area, began a volume at 20:18 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

Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 8.3 hours before the alert went out and 221 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: 7 J/kg
Mixed-layer CIN: -6 J/kg
Mixed-layer LCL: 1306 m above ground
0-6 km bulk shear: 107 kt
0-1 km storm-relative helicity: 181 m²/s²
0-3 km storm-relative helicity: 346 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this lake effect snow warning 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 lake effect snow warning went out at Jan 20, 12:50 PM EST, 2 hours 30 minutes earlier.

Area forecast discussion, Jan 20, 12:50 PM EST, 2 hours 30 minutes before

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Hazardous weather outlook, Jan 20, 9:37 AM EST, 5 hours 43 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
Jan 20, 4:07 AM EST	Lake Effect Snow Watch	CLE	Ashtabula, Cuyahoga, Geauga, Lake	11 hr
Jan 20, 9:49 AM EST	Small Craft Advisory	CLE		5 hr
Jan 20, 3:02 PM EST	Small Craft Advisory	CLE		7 hr

Nearby

Lake Effect Snow Warnings in Ohio, 2013 Lake Effect Snow Warnings in Pennsylvania, 2013 Every lake effect snow warning in 2013

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.