Alert archive / Ohio / Flash Flood Warnings in 2017

Flash Flood Warning 76, NWS Wilmington, OH

July 22, 2017Hocking County, Ohio

NWS Wilmington, OH issued this flash flood warning at Jul 22, 2017, 5:05 PM EDT for Hocking County, Ohio. It was in force for 115 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jul 22, 2017, 5:05 PM EDT (21:05 UTC)
Expired: Jul 22, 2017, 7:00 PM EDT
In force: 115 min
Issued by: NWS Wilmington, OH
Area: Storm-based polygon
Flood severity: None

County Hocking County, OH

The radar

The Cincinnati radar (KILN), 128 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

Cncnati-Daytn, OH (KILN), launched 12:00Z, 9.1 hours before the alert went out and 126 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: 809 J/kg
Mixed-layer CIN: -36 J/kg
Mixed-layer LCL: 691 m above ground
0-6 km bulk shear: 27 kt
0-1 km storm-relative helicity: 24 m²/s²
0-3 km storm-relative helicity: 45 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 0.8

Open this sounding in Storm Lab

The text

As transmitted.

712 
WGUS51 KILN 222105
FFWILN
OHC073-222300-
/O.NEW.KILN.FF.W.0076.170722T2105Z-170722T2300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Wilmington OH
505 PM EDT SAT JUL 22 2017

The National Weather Service in Wilmington has issued a

* Flash Flood Warning for...
  Central Hocking County in central Ohio...

* Until 700 PM EDT.

* At 504 PM EDT, radar indicated that thunderstorms had produced 
  heavy rain across the warned area. Two inches of rain had occurred 
  in some areas in about an hour. Heavy rain continues to fall with 
  another 1 to 2 inches possible. Runoff from this excessive 
  rainfall will cause flash flooding to occur.

* Some locations that will experience flooding include...
  Logan, Nelsonville, Murray City, Enterprise, Rockbridge, Lake Logan
  State Park, Haydenville and Carbon Hill.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Move to higher ground now. Act quickly to protect your life.

To report flash flooding, go to our website at weather.gov/iln and
submit your report via social media, when you can do so safely.

&&

LAT...LON 3947 8217 3947 8228 3955 8262 3961 8262
      3960 8251 3957 8226 3956 8226 3955 8216

$$

Binau

2 follow-up statements

736 
WGUS71 KILN 222129
FFSILN

Flash Flood Statement
National Weather Service Wilmington OH
529 PM EDT SAT JUL 22 2017

OHC073-222300-
/O.CON.KILN.FF.W.0076.000000T0000Z-170722T2300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Hocking OH-
529 PM EDT SAT JUL 22 2017

...THE FLASH FLOOD WARNING FOR CENTRAL HOCKING COUNTY REMAINS IN
EFFECT Until 700 PM EDT...

At 528 PM EDT, radar indicated that thunderstorms were producing 
heavy rain across the warned area. Up to two inches of rain have 
already fallen. Heavy rain continues to fall with another inch 
possible. Runoff from this excessive rainfall will cause flash 
flooding to occur. Rain should end by 6 PM but flash flooding may 
continue as runoff reaches small creeks and streams. 

Some locations that will experience flooding include...
Logan, Nelsonville, Murray City, Enterprise, Rockbridge, Lake Logan
State Park, Haydenville and Carbon Hill.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Move to higher ground now. Act quickly to protect your life. 

To report flash flooding, go to our website at weather.gov/iln and
submit your report via social media, when you can do so safely.

&&

LAT...LON 3947 8217 3947 8228 3955 8262 3961 8262
      3960 8251 3957 8226 3956 8226 3955 8216

$$

Binau

264 
WGUS71 KILN 222253
FFSILN

Flash Flood Statement
National Weather Service Wilmington OH
653 PM EDT SAT JUL 22 2017

OHC073-222302-
/O.EXP.KILN.FF.W.0076.000000T0000Z-170722T2300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Hocking OH-
653 PM EDT SAT JUL 22 2017

...THE FLASH FLOOD WARNING FOR CENTRAL HOCKING COUNTY WILL EXPIRE AT
700 PM EDT...

The threat for flash flooding has ended.

A flood advisory remains in effect for portions of Hocking County 
until 945 PM.

Please report previous flash flooding to the National Weather Service
by going to our website at weather.gov/iln and submitting your report
via social media.

LAT...LON 3947 8217 3947 8228 3955 8262 3961 8262
      3960 8251 3957 8226 3956 8226 3955 8216

$$

Hatzos

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 21, 8:21 PM EDT	Severe Thunderstorm Warning	ILN	Clermont	18 min
Jul 21, 10:12 PM EDT	Special Weather Statement	ILN	Adams	33 min
Jul 21, 10:48 PM EDT	Special Weather Statement	ILN	Ross	27 min
Jul 22, 3:48 AM EDT	Excessive Heat Warning	ILN	Hamilton	15 hr
Jul 22, 3:48 AM EDT	Special Weather Statement	ILN	Auglaize	12 min
Jul 22, 3:56 AM EDT	Areal Flood Advisory	ILN	Auglaize, Mercer	3 hr
Jul 22, 4:52 AM EDT	Special Weather Statement	ILN	Auglaize, Mercer	23 min
Jul 22, 5:13 AM EDT	Special Weather Statement	ILN	Auglaize, Shelby	32 min
Jul 22, 5:25 AM EDT	Areal Flood Advisory	ILN	Auglaize, Hardin	3 hr
Jul 22, 5:30 AM EDT	Special Weather Statement	ILN	Miami	30 min
Jul 22, 5:43 AM EDT	Special Weather Statement	ILN	Logan	32 min
Jul 22, 5:56 AM EDT	Special Weather Statement	ILN	Champaign, Union	34 min
Jul 22, 5:58 AM EDT	Special Weather Statement	ILN	Clark, Greene	32 min
Jul 22, 6:25 AM EDT	Special Weather Statement	ILN	Delaware	35 min
Jul 22, 6:28 AM EDT	Special Weather Statement	ILN	Franklin, Madison	32 min
Jul 22, 6:36 AM EDT	Flash Flood Warning	ILN	Auglaize, Mercer	5 hr
Jul 22, 6:43 AM EDT	Severe Thunderstorm Warning	ILN	Delaware	17 min
Jul 22, 6:57 AM EDT	Special Weather Statement	ILN	Fairfield, Licking, Pickaway	48 min
Jul 22, 7:03 AM EDT	Special Weather Statement	ILN	Pickaway	42 min
Jul 22, 7:09 AM EDT	Severe Thunderstorm Warning	ILN	Fairfield, Franklin, Licking	25 min
Jul 22, 7:33 AM EDT	Special Weather Statement	ILN	Licking	12 min
Jul 22, 8:09 AM EDT	Special Weather Statement	ILN	Hocking	36 min
Jul 22, 11:21 AM EDT	Areal Flood Warning	ILN	Auglaize	6 hr
Jul 22, 3:10 PM EDT	Special Weather Statement	ILN	Fairfield	35 min
Jul 22, 3:11 PM EDT	Special Weather Statement	ILN	Madison	34 min
Jul 22, 3:17 PM EDT	Severe Thunderstorm Warning	ILN	Fairfield, Hocking	43 min
Jul 22, 3:18 PM EDT	Severe Thunderstorm Warning	ILN	Clark, Madison	42 min
Jul 22, 3:39 PM EDT	Severe Thunderstorm Warning	ILN	Franklin, Madison, Pickaway	36 min
Jul 22, 3:40 PM EDT	Areal Flood Advisory	ILN	Fairfield, Hocking	3 hr
Jul 22, 3:55 PM EDT	Severe Thunderstorm Warning	ILN	Fairfield, Hocking	50 min
Jul 22, 4:14 PM EDT	Flash Flood Warning	ILN	Fairfield, Hocking	3 hr
Jul 22, 4:16 PM EDT	Special Weather Statement	ILN	Fairfield, Pickaway	29 min
Jul 22, 4:43 PM EDT	Severe Thunderstorm Warning	ILN	Fairfield, Hocking	47 min
Jul 22, 6:03 PM EDT	Special Weather Statement	ILN	Hocking	27 min
Jul 22, 6:44 PM EDT	Areal Flood Advisory	ILN	Hocking	3 hr
Jul 22, 7:14 PM EDT	Special Weather Statement	ILN	Ross	16 min

Nearby

Flash Flood Warnings in Ohio, 2017 Every flash flood warning 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.