Alert archive / Ohio / Flash Flood Watches in 2018

Flash Flood Watch 2, NWS Wilmington, OH

April 15, 2018Fairfield County, Hocking County, Licking County, Ohio

NWS Wilmington, OH issued this flash flood watch at Apr 15, 2018, 12:58 PM EDT for Fairfield County, Hocking County, Licking County, Ohio. It was in force for 10 hr.

The area

The counties it named.

The facts

Issued: Apr 15, 2018, 12:58 PM EDT (16:58 UTC)
Expired: Apr 15, 2018, 10:47 PM EDT
In force: 10 hr
Issued by: NWS Wilmington, OH
Flood severity: None

Counties Fairfield County, OH, Hocking County, OH, Licking County, OH

The radar

The Cincinnati radar (KILN), 118 km from the middle of the area, began a volume at 16:58 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 12:00Z, 5.0 hours before the alert went out and 218 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: 956 m above ground
0-6 km bulk shear: 65 kt
0-1 km storm-relative helicity: 279 m²/s²
0-3 km storm-relative helicity: 326 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 Apr 15, 10:51 AM EDT, 2 hours 7 minutes earlier.

Area forecast discussion, Apr 15, 10:51 AM EDT, 2 hours 7 minutes before

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Hazardous weather outlook, Apr 15, 10:56 AM EDT, 2 hours 2 minutes before

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In the hours before

Special weather statement, Apr 15, 10:57 AM EDT, 2 hours 1 minute before

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Special weather statement, Apr 15, 10:59 AM EDT, 1 hour 59 minutes before

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Special weather statement, Apr 15, 11:41 AM EDT, 1 hour 17 minutes before

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Special weather statement, Apr 15, 11:44 AM EDT, 1 hour 14 minutes before

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Local storm report, Apr 15, 12:17 PM EDT, 41 minutes before

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Local storm report, Apr 15, 12:22 PM EDT, 36 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
Apr 15, 9:35 AM EDT	Special Weather Statement	ILN	Butler, Darke, Hamilton, Preble	25 min
Apr 15, 9:57 AM EDT	Special Weather Statement	ILN	Butler, Darke, Hamilton, Preble	33 min
Apr 15, 10:15 AM EDT	Special Weather Statement	ILN	Clermont	45 min
Apr 15, 10:20 AM EDT	Special Weather Statement	ILN	Miami, Montgomery, Shelby, Warren	40 min
Apr 15, 10:57 AM EDT	Special Weather Statement	ILN	Brown, Clermont, Clinton, Highland	48 min
Apr 15, 10:59 AM EDT	Special Weather Statement	ILN	Champaign, Clark, Greene, Miami, Shelby	46 min
Apr 15, 11:13 AM EDT	Severe Thunderstorm Warning	ILN	Clinton	17 min
Apr 15, 11:41 AM EDT	Special Weather Statement	ILN	Champaign, Clark, Fayette, Logan, Madison	49 min
Apr 15, 11:44 AM EDT	Special Weather Statement	ILN	Adams, Brown, Clinton, Highland	46 min
Apr 15, 2:25 PM EDT	Special Weather Statement	ILN	Scioto	35 min
Apr 15, 3:15 PM EDT	Special Weather Statement	ILN	Hocking	45 min
Apr 15, 3:52 PM EDT	Areal Flood Advisory	ILN	Franklin, Pickaway, Pike, Ross	3 hr
Apr 15, 4:04 PM EDT	Areal Flood Advisory	ILN	Fairfield, Hocking, Licking	6 hr
Apr 15, 6:40 PM EDT	Areal Flood Advisory	ILN	Franklin, Pickaway, Pike, Ross	3 hr
Apr 15, 7:29 PM EDT	River Flood Warning	ILN	Hocking	33 hr
Apr 15, 9:45 AM EDT	Special Weather Statement	ILN	Bracken, Campbell, Grant, Kenton, Pendleton	30 min

Nearby

Flash Flood Watches in Ohio, 2018 Every flash flood watch in 2018

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.