Alert archive / Ohio / Areal Flood Advisories in 2012

Areal Flood Advisory 45, NWS Cleveland, OH

October 31, 20124 counties in Ohio

NWS Cleveland, OH issued this areal flood advisory at Oct 31, 2012, 5:03 PM EDT for 4 counties in Ohio. It was in force for 12 hr.

The area

The counties it named.

The facts

Issued: Oct 31, 2012, 5:03 PM EDT (21:03 UTC)
Expired: Nov 1, 2012, 5:00 AM EDT
In force: 12 hr
Issued by: NWS Cleveland, OH
Area: Storm-based polygon

Counties Ashtabula County, OH, Cuyahoga County, OH, Geauga County, OH, Lake County, OH

The radar

The Cleveland radar (KCLE), 60 km from the middle of the area, began a volume at 21:07 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, 9.1 hours before the alert went out and 166 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: 524 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: 238 m²/s²
0-3 km storm-relative helicity: 280 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 areal flood 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 areal flood advisory went out at Oct 30, 6:24 PM EDT, 22 hours 39 minutes earlier.

Area forecast discussion, Oct 30, 6:24 PM EDT, 22 hours 39 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 30, 8:28 PM EDT	Small Craft Advisory	CLE		9 hr
Oct 30, 8:42 PM EDT	River Flood Warning	CLE	Lake	12 hr
Oct 31, 4:52 AM EDT	River Flood Warning	CLE	Trumbull	34 hr
Oct 31, 5:10 AM EDT	Small Craft Advisory	CLE		3 days
Oct 31, 9:08 AM EDT	River Flood Warning	CLE	Lake	15 hr
Oct 31, 9:17 AM EDT	Areal Flood Advisory	CLE	Cuyahoga, Geauga, Lake, Medina, Summit	8 hr
Oct 31, 11:57 AM EDT	Areal Flood Advisory	CLE	Erie, Lorain	4 hr

Nearby

Areal Flood Advisories in Ohio, 2012 Every areal flood advisory in 2012

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.