Alert archive / Ohio / Lake Effect Snow Advisories in 2011

Lake Effect Snow Advisory 4, NWS Cleveland, OH

November 10, 2011Ashtabula County, Geauga County, Lake County, Ohio; Crawford County, Erie County, Pennsylvania

NWS Cleveland, OH issued this lake effect snow advisory at Nov 10, 2011, 3:28 PM EST for Ashtabula County, Geauga County, Lake County, Ohio; Crawford County, Erie County, Pennsylvania. It took effect at Nov 11, 2011, 12:00 AM EST. It was in force for 10 hr.

The area

The counties it named.

The facts

Issued: Nov 10, 2011, 3:28 PM EST (20:28 UTC)
In effect from: Nov 11, 2011, 12:00 AM EST
Expired: Nov 11, 2011, 10:15 AM EST
In force: 10 hr
Issued by: NWS Cleveland, OH

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

The radar

The Cleveland radar (KCLE), 107 km from the middle of the area, began a volume at 20:32 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, 8.5 hours before the alert went out and 207 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: 557 m above ground
0-6 km bulk shear: 73 kt
0-1 km storm-relative helicity: -67 m²/s²
0-3 km storm-relative helicity: 31 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 lake effect snow 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 lake effect snow advisory went out at Nov 10, 12:29 PM EST, 2 hours 59 minutes earlier.

Area forecast discussion, Nov 10, 12:29 PM EST, 2 hours 59 minutes before

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Hazardous weather outlook, Nov 10, 12:16 PM EST, 3 hours 12 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 Cleveland, OH issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Nov 10, 12:51 AM EST	Low Water Advisory	CLE		7 hr
Nov 10, 7:27 AM EST	Small Craft Advisory	CLE		4 days

Nearby

Lake Effect Snow Advisories in Ohio, 2011 Lake Effect Snow Advisories in Pennsylvania, 2011 Every lake effect snow advisory in 2011

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.