Alert archive / Ohio / Snow Advisories in 2007

Snow Advisory 1, NWS Wilmington, OH

February 5, 200716 counties in Ohio

NWS Wilmington, OH issued this snow advisory at Feb 5, 2007, 4:21 PM EST for 16 counties in Ohio. It took effect at Feb 6, 2007, 1:00 PM EST. It was in force for 12 hr.

The area

The counties it named.

The facts

Issued: Feb 5, 2007, 4:21 PM EST (21:21 UTC)
In effect from: Feb 6, 2007, 1:00 PM EST
Expired: Feb 7, 2007, 12:52 AM EST
In force: 12 hr
Issued by: NWS Wilmington, OH

Counties Champaign County, OH, Clark County, OH, Darke County, OH, Delaware County, OH, Fairfield County, OH, Fayette County, OH, Franklin County, OH, Greene County, OH, Hocking County, OH, Licking County, OH, Madison County, OH, Miami County, OH, Montgomery County, OH, Pickaway County, OH, Ross County, OH, Union County, OH

The radar

The Cincinnati radar (KILN), 62 km from the middle of the area, began a volume at 21:25 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

Cncnati-Daytn, OH (KILN), launched 12:00Z, 9.4 hours before the alert went out and 60 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: 976 m above ground
0-6 km bulk shear: 104 kt
0-1 km storm-relative helicity: -20 m²/s²
0-3 km storm-relative helicity: 132 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 snow advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Wilmington, OH wrote its last area forecast discussion before this snow advisory went out at Feb 5, 12:52 PM EST, 3 hours 29 minutes earlier.

Area forecast discussion, Feb 5, 12:52 PM EST, 3 hours 29 minutes before

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Hazardous weather outlook, Feb 5, 11:25 AM EST, 4 hours 56 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 Wilmington, OH issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Feb 5, 11:09 AM EST	Winter Storm Watch	ILN	Adams, Brown, Butler, Clermont, Clinton, Hamilton and 4 more	5 hr
Feb 5, 3:57 PM EST	Heavy Snow Warning	ILN	Adams, Brown, Butler, Clermont, Clinton, Fayette and 9 more	29 hr
Feb 5, 3:57 PM EST	Winter Weather Advisory	ILN	Auglaize, Champaign, Clark, Darke, Delaware, Fairfield and 15 more	24 min

Nearby

Snow Advisories in Ohio, 2007 Every snow advisory in 2007

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.