Alert archive / Ohio / Flash Flood Watches in 2017

Flash Flood Watch 11, NWS Wilmington, OH

November 5, 201729 counties in Ohio; Boone County, Campbell County, Kenton County, Kentucky; 8 counties in Indiana

NWS Wilmington, OH issued this flash flood watch at Nov 5, 2017, 3:23 AM EST for 29 counties in Ohio; Boone County, Campbell County, Kenton County, Kentucky; 8 counties in Indiana. It took effect at Nov 5, 2017, 1:00 PM EST. It was in force for 15 hr.

The area

The counties it named.

The facts

Issued: Nov 5, 2017, 3:23 AM EST (08:23 UTC)
In effect from: Nov 5, 2017, 1:00 PM EST
Expired: Nov 6, 2017, 3:48 AM EST
In force: 15 hr
Issued by: NWS Wilmington, OH
Flood severity: None

All 40 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, Kenton County, KY, Auglaize County, OH, Brown County, OH, Butler County, OH, Champaign County, OH, Clark County, OH, Clermont County, OH, Clinton County, OH, Darke County, OH, Delaware County, OH, Fairfield County, OH, Fayette County, OH, Franklin County, OH, Greene County, OH, Hamilton County, OH, Hardin County, OH, Highland County, OH, Hocking County, OH, Licking County, OH, Logan County, OH, Madison County, OH, Mercer County, OH, Miami County, OH, Montgomery County, OH, Pickaway County, OH, Preble County, OH, Ross County, OH, Shelby County, OH, Union County, OH, Warren County, OH

The radar

The Cincinnati radar (KILN), 33 km from the middle of the area, began a volume at 08:24 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 (KAGC), launched 00:00Z, 8.4 hours before the alert went out and 347 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: 1 J/kg
Mixed-layer CIN: -174 J/kg
Mixed-layer LCL: 1085 m above ground
0-6 km bulk shear: 43 kt
0-1 km storm-relative helicity: 259 m²/s²
0-3 km storm-relative helicity: 279 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 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 Nov 5, 1:14 AM EST, 2 hours 9 minutes earlier.

Area forecast discussion, Nov 5, 1:14 AM EST, 2 hours 9 minutes before

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Hazardous weather outlook, Nov 4, 3:54 PM EDT, 12 hours 29 minutes before

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The office that day

Everything else NWS Wilmington, OH issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Nov 5, 2:07 PM EST	Tornado Warning	ILN	Mercer	23 min
Nov 5, 2:25 PM EST	Tornado Warning Tornado observed	ILN	Mercer	35 min
Nov 5, 2:40 PM EST	Tornado Warning	ILN	Auglaize, Mercer	35 min
Nov 5, 2:55 PM EST	Tornado Warning Tornado observed	ILN	Auglaize	20 min
Nov 5, 3:20 PM EST	Special Weather Statement	ILN	Mercer	25 min
Nov 5, 3:27 PM EST	Severe Thunderstorm Warning	ILN	Auglaize, Mercer	48 min
Nov 5, 3:33 PM EST	Tornado Warning	ILN	Mercer	12 min
Nov 5, 3:37 PM EST	Areal Flood Advisory	ILN	Mercer	3 hr
Nov 5, 3:45 PM EST	Severe Thunderstorm Warning	ILN	Darke	28 min
Nov 5, 3:49 PM EST	Severe Thunderstorm Warning	ILN	Auglaize, Hardin, Logan, Shelby	41 min
Nov 5, 3:51 PM EST	Special Weather Statement	ILN	Hardin	39 min
Nov 5, 4:02 PM EST	Areal Flood Advisory	ILN	Auglaize	3 hr
Nov 5, 4:22 PM EST	Severe Thunderstorm Warning	ILN	Hardin, Logan, Union	24 min
Nov 5, 4:25 PM EST	Special Weather Statement	ILN	Hamilton, Warren	35 min
Nov 5, 4:41 PM EST	Areal Flood Advisory	ILN	Butler, Clermont, Hamilton, Warren	3 hr
Nov 5, 4:41 PM EST	Special Weather Statement	ILN	Shelby	34 min
Nov 5, 5:02 PM EST	Areal Flood Advisory	ILN	Darke	3 hr
Nov 5, 5:13 PM EST	Special Weather Statement	ILN	Miami	47 min
Nov 5, 5:17 PM EST	Areal Flood Advisory	ILN	Auglaize, Hardin, Logan	3 hr
Nov 5, 5:21 PM EST	Severe Thunderstorm Warning	ILN	Champaign, Darke, Miami, Shelby	24 min
Nov 5, 5:36 PM EST	Special Weather Statement	ILN	Champaign, Clark	24 min
Nov 5, 5:42 PM EST	Areal Flood Advisory	ILN	Darke, Preble	3 hr
Nov 5, 5:42 PM EST	Severe Thunderstorm Warning	ILN	Champaign, Clark, Miami	33 min
Nov 5, 5:50 PM EST	Special Weather Statement	ILN	Preble	25 min
Nov 5, 5:57 PM EST	Special Weather Statement	ILN	Clark, Delaware, Madison, Union	33 min
Nov 5, 6:09 PM EST	Areal Flood Advisory	ILN	Champaign, Clark, Miami, Montgomery	3 hr
Nov 5, 6:18 PM EST	Severe Thunderstorm Warning	ILN	Clark, Greene, Madison	27 min
Nov 5, 6:23 PM EST	Areal Flood Advisory	ILN	Champaign, Clark, Delaware, Madison, Union	3 hr
Nov 5, 6:23 PM EST	Tornado Warning	ILN	Clark, Madison	15 min
Nov 5, 6:25 PM EST	Special Weather Statement	ILN	Delaware, Franklin, Madison	50 min
Nov 5, 6:30 PM EST	Severe Thunderstorm Warning	ILN	Delaware, Franklin, Licking, Madison, Union	30 min
Nov 5, 6:37 PM EST	Areal Flood Advisory	ILN	Delaware, Franklin, Licking, Madison	3 hr
Nov 5, 6:45 PM EST	Areal Flood Advisory	ILN	Montgomery, Preble	3 hr
Nov 5, 6:55 PM EST	Areal Flood Advisory	ILN	Fairfield, Franklin, Licking	3 hr
Nov 5, 6:56 PM EST	Severe Thunderstorm Warning	ILN	Delaware, Fairfield, Franklin, Licking, Pickaway	34 min
Nov 5, 6:58 PM EST	Special Weather Statement	ILN	Montgomery	47 min
Nov 5, 2:57 PM EST	Special Weather Statement	ILN	Ripley	33 min
Nov 5, 3:30 PM EST	Special Weather Statement	ILN	Franklin	30 min
Nov 5, 4:01 PM EST	Special Weather Statement	ILN	Dearborn	29 min
Nov 5, 6:37 PM EST	Special Weather Statement	ILN	Fayette, Union, Wayne	38 min

Nearby

Flash Flood Watches in Ohio, 2017 Flash Flood Watches in Indiana, 2017 Flash Flood Watches in Kentucky, 2017 Every flash flood watch in 2017

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.