Alert archive / Ohio / Flash Flood Warnings in 2020

Flash Flood Warning 13, NWS Wilmington, OH

May 19, 20204 counties in Ohio

NWS Wilmington, OH issued this flash flood warning at May 19, 2020, 7:47 AM EDT for 4 counties in Ohio. It was in force for 4 hr. 2 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: May 19, 2020, 7:47 AM EDT (11:47 UTC)
Expired: May 19, 2020, 11:45 AM EDT
In force: 4 hr
Issued by: NWS Wilmington, OH
Area: Storm-based polygon
Flood severity: None

Counties Butler County, OH, Montgomery County, OH, Preble County, OH, Warren County, OH

The radar

The Cincinnati radar (KILN), 41 km from the middle of the area, began a volume at 11:49 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.

What was reported inside it

Time	Report	Where	Remark
May 19, 9:00 AM EDT	FLASH FLOOD	6 Wsw Lebanon, OH	HIGH WATER ALONG MASON MONTGOMERY ROAD NEAR INTERSECTION WITH HAMILTON ROAD. TIME OF EVENT ESTIMATED.
May 19, 9:00 AM EDT	FLASH FLOOD	6 Wsw Lebanon, OH	HIGH WATER WITH WATER RESCUES BEING CONDUCTED ALONG MASON MONTGOMERY ROAD NEAR INTERSECTION WITH HAMILTON ROAD. TIME OF EVENT ESTIMATED.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 00:00Z, 11.8 hours before the alert went out and 43 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: 973 m above ground
0-6 km bulk shear: 23 kt
0-1 km storm-relative helicity: 67 m²/s²
0-3 km storm-relative helicity: 84 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

218 
WGUS51 KILN 191147
FFWILN
OHC017-113-135-165-191545-
/O.NEW.KILN.FF.W.0013.200519T1147Z-200519T1545Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Wilmington OH
747 AM EDT Tue May 19 2020

The National Weather Service in Wilmington has issued a

* Flash Flood Warning for...
  Southeastern Preble County in west central Ohio...
  Eastern Butler County in southwestern Ohio...
  Warren County in southwestern Ohio...
  Southern Montgomery County in west central Ohio...

* Until 1145 AM EDT.

* At 746 AM EDT, emergency management reported flash flooding in 
  Butler County near Lindenwald. 1 to 3 inches of rain have fallen.

  HAZARD...Flash flooding caused by heavy rain.

  SOURCE...Emergency management.

  IMPACT...Flooding of small creeks and streams, urban areas, 
           highways, streets and underpasses as well as other 
           drainage and low lying areas.

* Some locations that may experience flooding include...
  Hamilton, Kettering, Middletown, Fairfield, Mason, Miamisburg,
  Lebanon, Springboro, Sharonville, Monroe, Loveland, Trenton,
  Franklin, Springdale, Moraine, Carlisle, South Middletown, West
  Chester, West Carrollton and Waynesville.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.

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 3971 8458 3969 8411 3958 8412 3957 8407
      3926 8408 3928 8426 3929 8427 3931 8460

FLASH FLOOD...OBSERVED

$$

McGinnis

1 follow-up statement

225 
WGUS71 KILN 191540
FFSILN

Flash Flood Statement
National Weather Service Wilmington OH
1140 AM EDT Tue May 19 2020

OHC017-113-135-165-191548-
/O.EXP.KILN.FF.W.0013.000000T0000Z-200519T1545Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Preble OH-Butler OH-Warren OH-Montgomery OH-
1140 AM EDT Tue May 19 2020

...THE FLASH FLOOD WARNING FOR SOUTHEASTERN PREBLE...EASTERN
BUTLER...WARREN AND SOUTHERN MONTGOMERY COUNTIES WILL EXPIRE AT 1145
AM EDT...

The Flash Flood Warning has been replaced by an Areal Flood Warning 
which is valid until 530 PM.

LAT...LON 3971 8458 3969 8411 3958 8412 3957 8407
      3926 8408 3928 8426 3929 8427 3931 8460

$$

Sites

The office that day

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

Issued	Product	Office	Counties	Lasted
May 18, 8:10 PM EDT	Areal Flood Advisory	ILN	Brown, Clermont, Hamilton	3 hr
May 18, 8:34 PM EDT	Areal Flood Advisory	ILN	Butler, Miami, Montgomery, Preble, Warren	3 hr
May 18, 9:18 PM EDT	Areal Flood Advisory	ILN	Adams, Brown, Highland	4 hr
May 18, 10:22 PM EDT	Areal Flood Advisory	ILN	Fayette, Madison	4 hr
May 19, 12:18 AM EDT	Areal Flood Advisory	ILN	Delaware, Franklin, Pickaway, Pike, Ross, Scioto	5 hr
May 19, 12:48 AM EDT	River Flood Warning	ILN	Adams	29 hr
May 19, 12:52 AM EDT	Flash Flood Warning	ILN	Delaware, Franklin	10 hr
May 19, 1:23 AM EDT	River Flood Advisory	ILN	Delaware, Franklin	36 hr
May 19, 2:26 AM EDT	Areal Flood Advisory	ILN	Delaware, Fairfield, Licking	3 hr
May 19, 2:33 AM EDT	River Flood Warning	ILN	Delaware, Franklin	13 hr
May 19, 5:15 AM EDT	Areal Flood Advisory	ILN	Pickaway, Pike, Ross, Scioto	3 hr
May 19, 5:20 AM EDT	River Flood Warning	ILN	Licking	22 hr
May 19, 5:30 AM EDT	Areal Flood Advisory	ILN	Delaware, Fairfield, Licking	2 hr
May 19, 5:53 AM EDT	Areal Flood Advisory	ILN	Butler, Clermont, Hamilton, Warren	8 hr
May 19, 6:04 AM EDT	Flash Flood Warning	ILN	Hamilton	4 hr
May 19, 6:20 AM EDT	Areal Flood Advisory	ILN	Brown	4 hr
May 19, 6:43 AM EDT	River Flood Warning	ILN	Licking	40 hr
May 19, 7:00 AM EDT	River Flood Warning	ILN	Hamilton	23 hr
May 19, 7:27 AM EDT	River Flood Warning	ILN	Hamilton	36 hr
May 19, 7:27 AM EDT	River Flood Warning	ILN	Clark	18 hr
May 19, 7:28 AM EDT	River Flood Warning	ILN	Pickaway	4 days
May 19, 7:51 AM EDT	Areal Flood Warning	ILN	Delaware	9 hr
May 19, 8:12 AM EDT	Areal Flood Warning	ILN	Franklin	3 hr
May 19, 8:12 AM EDT	Areal Flood Warning	ILN	Franklin	3 hr
May 19, 8:55 AM EDT	River Flood Warning	ILN	Clermont, Hamilton, Warren	22 hr
May 19, 8:55 AM EDT	River Flood Warning	ILN	Clermont, Hamilton	27 hr
May 19, 9:36 AM EDT	Areal Flood Warning	ILN	Greene, Warren	8 hr
May 19, 9:56 AM EDT	Flash Flood Warning Considerable damage threat	ILN	Hamilton	5 hr
May 19, 10:12 AM EDT	River Flood Warning	ILN	Shelby	34 hr
May 19, 10:12 AM EDT	River Flood Warning	ILN	Montgomery	37 hr
May 19, 10:12 AM EDT	River Flood Warning	ILN	Warren	34 hr
May 19, 10:12 AM EDT	River Flood Warning	ILN	Butler	52 hr
May 19, 10:18 AM EDT	River Flood Warning	ILN	Hocking	42 hr
May 19, 10:18 AM EDT	River Flood Warning	ILN	Licking	28 hr
May 19, 10:28 AM EDT	River Flood Warning	ILN	Franklin	11 hr
May 19, 10:28 AM EDT	River Flood Warning	ILN	Ross	3 days
May 19, 10:28 AM EDT	River Flood Warning	ILN	Pike, Scioto	5 days
May 19, 10:28 AM EDT	River Flood Warning	ILN	Franklin, Pickaway	37 hr
May 19, 11:08 AM EDT	Areal Flood Warning	ILN	Delaware	9 hr
May 19, 11:12 AM EDT	Areal Flood Advisory	ILN	Franklin	9 hr
May 19, 11:37 AM EDT	Areal Flood Warning	ILN	Butler, Warren	6 hr
May 19, 1:24 PM EDT	Areal Flood Advisory	ILN	Hamilton	6 hr
May 19, 2:52 PM EDT	Flash Flood Warning	ILN	Hamilton	4 hr
May 19, 3:56 PM EDT	Areal Flood Advisory	ILN	Adams, Brown, Clermont	6 hr
May 19, 4:58 PM EDT	Areal Flood Advisory	ILN	Adams, Highland, Scioto	6 hr
May 19, 5:20 PM EDT	Areal Flood Advisory	ILN	Butler, Warren	4 hr
May 19, 6:30 PM EDT	Areal Flood Warning	ILN	Hamilton	5 hr
May 19, 6:43 PM EDT	Areal Flood Warning	ILN	Greene, Warren	19 hr
May 19, 7:54 PM EDT	Areal Flood Advisory	ILN	Delaware	4 hr

Nearby

Flash Flood Warnings in Ohio, 2020 Every flash flood warning in 2020

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.