Alert archive / Ohio / Flash Flood Watches in 2013

Flash Flood Watch 8, NWS Wilmington, OH

October 5, 201317 counties in Ohio; 8 counties in Kentucky; 8 counties in Indiana

NWS Wilmington, OH issued this flash flood watch at Oct 5, 2013, 3:22 PM EDT for 17 counties in Ohio; 8 counties in Kentucky; 8 counties in Indiana. It took effect at Oct 6, 2013, 2:00 AM EDT. It was in force for 17 hr.

The area

The counties it named.

The facts

Issued: Oct 5, 2013, 3:22 PM EDT (19:22 UTC)
In effect from: Oct 6, 2013, 2:00 AM EDT
Expired: Oct 6, 2013, 7:11 PM EDT
In force: 17 hr
Issued by: NWS Wilmington, OH
Flood severity: None

All 33 counties

Dearborn County, IN, Fayette County, IN, Franklin County, IN, Ohio County, IN, Ripley County, IN, Switzerland County, IN, Union County, IN, Wayne County, IN, Boone County, KY, Campbell County, KY, Carroll County, KY, Gallatin County, KY, Grant County, KY, Kenton County, KY, Owen County, KY, Pendleton County, KY, Auglaize County, OH, Butler County, OH, Champaign County, OH, Clark County, OH, Clermont County, OH, Clinton County, OH, Darke County, OH, Greene County, OH, Hamilton County, OH, Hardin County, OH, Logan County, OH, Mercer County, OH, Miami County, OH, Montgomery County, OH, Preble County, OH, Shelby County, OH, Warren County, OH

The radar

The Cincinnati radar (KILN), 60 km from the middle of the area, began a volume at 19:25 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

Lincoln, IL (KILX), launched 12:00Z, 7.4 hours before the alert went out and 357 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: 774 J/kg
Mixed-layer CIN: -62 J/kg
Mixed-layer LCL: 907 m above ground
0-6 km bulk shear: 30 kt
0-1 km storm-relative helicity: 107 m²/s²
0-3 km storm-relative helicity: 89 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 1.7

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this flash flood watch 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 flash flood watch went out at Oct 5, 1:48 PM EDT, 1 hour 34 minutes earlier.

Area forecast discussion, Oct 5, 1:48 PM EDT, 1 hour 34 minutes before

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Hazardous weather outlook, Oct 5, 4:27 AM EDT, 10 hours 55 minutes before

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Nearby

Flash Flood Watches in Ohio, 2013 Flash Flood Watches in Kentucky, 2013 Flash Flood Watches in Indiana, 2013 Every flash flood watch 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.