Alert archive / Indiana / Flash Flood Warnings in 2021

Flash Flood Warning 8, NWS Wilmington, OH

June 18, 2021Dearborn County, Franklin County, Ripley County, Indiana

NWS Wilmington, OH issued this flash flood warning at Jun 18, 2021, 9:00 PM EDT for Dearborn County, Franklin County, Ripley County, Indiana. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Jun 18, 2021, 9:00 PM EDT (01:00 UTC)
Expired
Jun 19, 2021, 12:00 AM EDT
In force
3 hr
Issued by
NWS Wilmington, OH
Area
Storm-based polygon
Flood severity
None

Counties Dearborn County, IN, Franklin County, IN, Ripley County, IN

The radar

The Indianapolis radar (KIND), 108 km from the middle of the area, began a volume at 01:05 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 00:00Z, 1.0 hours before the alert went out and 121 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-pSkew-T log-p diagram, Cncnati-Daytn, OH at 00:00Z on 2021-06-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2257 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Cncnati-Daytn, OH at 00:00Z on 2021-06-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 214 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
2257 J/kg
Mixed-layer CIN
-56 J/kg
Mixed-layer LCL
1236 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
214 m²/s²
0-3 km storm-relative helicity
240 m²/s²
Significant tornado parameter
1.9
Supercell composite
17.6

Open this sounding in Storm Lab

The text

As transmitted.

886 
WGUS51 KILN 190100
FFWILN
INC029-047-137-190400-
/O.NEW.KILN.FF.W.0008.210619T0100Z-210619T0400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Wilmington OH
900 PM EDT Fri Jun 18 2021

The National Weather Service in Wilmington has issued a

* Flash Flood Warning for...
  Dearborn County in southeastern Indiana...
  Southern Franklin County in southeastern Indiana...
  Northern Ripley County in southeastern Indiana...

* Until midnight EDT.

* At 900 PM EDT, radar indicated thunderstorms producing heavy rain 
  across the warned area. Between 1 and 3 inches of rain have 
  fallen. Flash flooding is ongoing or expected to begin shortly.

  HAZARD...Flash flooding caused by thunderstorms.

  SOURCE...Radar.

  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 flash flooding include...
  Harrison, Batesville, Lawrenceburg, Greendale, Aurora, Bright, 
  Hidden Valley, Milan, Oldenburg, Shawnee, Moores Hill, Guilford, 
  Wilmington, Logan, Manchester, Sunman, St. Leon, West Harrison, 
  Napoleon and Weisburg.

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 3921 8540 3922 8539 3927 8530 3938 8530
      3942 8527 3929 8482 3911 8482 3904 8494

FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL...1-2 INCHES IN 1 HOUR 

$$

ch
1 follow-up statement
192 
WGUS71 KILN 190401
FFSILN

Flash Flood Statement
National Weather Service Wilmington OH
1201 AM EDT Sat Jun 19 2021

INC029-047-137-190411-
/O.EXP.KILN.FF.W.0008.000000T0000Z-210619T0400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Dearborn IN-Franklin IN-Ripley IN-
1201 AM EDT Sat Jun 19 2021

...FLASH FLOOD WARNING HAS EXPIRED FOR DEARBORN, SOUTHERN FRANKLIN 
IN AND NORTHERN RIPLEY COUNTIES IN SOUTHEASTERN INDIANA...

The heavy rain has ended. Flooding is no longer expected to pose an 
immediate threat. However, more showers and storms are moving 
through the area and may eventually lead to a renewed flood threat 
later in the night.

A Flash Flood Watch remains in effect until 1200 PM EDT Saturday for 
portions of Indiana...Northern Kentucky and Ohio.

LAT...LON 3921 8540 3922 8539 3927 8530 3938 8530
      3942 8527 3929 8482 3911 8482 3904 8494

$$

Binau

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 18, 8:10 PM EDTSevere Thunderstorm WarningILNDearborn, Franklin, Ripley50 min
Jun 18, 8:14 PM EDTSevere Thunderstorm WarningILNUnion, Wayne31 min
Jun 18, 8:44 PM EDTSevere Thunderstorm WarningILNDearborn, Franklin, Ripley46 min
Jun 18, 8:56 PM EDTSevere Thunderstorm WarningILNDearborn, Ohio, Ripley, Switzerland34 min
Jun 18, 9:02 PM EDTTornado WarningILNDearborn, Ohio, Ripley28 min
Jun 18, 9:11 PM EDTTornado WarningILNDearborn, Ohio34 min
Jun 18, 9:30 PM EDTSevere Thunderstorm WarningILNOhio, Switzerland15 min
Jun 18, 9:39 PM EDTAreal Flood AdvisoryILNDearborn, Ohio3 hr
Jun 18, 11:59 PM EDTAreal Flood AdvisoryILNSwitzerland3 hr
Jun 19, 12:01 AM EDTSevere Thunderstorm WarningILNWayne27 min
Jun 19, 1:12 AM EDTAreal Flood AdvisoryILNWayne2 hr
Jun 19, 1:28 AM EDTFlash Flood WarningILNSwitzerland4 hr
Jun 19, 3:44 AM EDTAreal Flood AdvisoryILNDearborn, Franklin, Ripley, Switzerland3 hr
Jun 19, 4:40 AM EDTAreal Flood AdvisoryILNOhio, Switzerland5 hr
Jun 19, 6:39 AM EDTAreal Flood AdvisoryILNDearborn, Franklin, Ripley19 min
Jun 19, 6:54 AM EDTFlash Flood WarningILNDearborn, Franklin, Ohio, Ripley, Switzerland13 hr
Jun 19, 8:11 AM EDTSpecial Weather StatementILNOhio, Switzerland34 min
Jun 19, 10:02 AM EDTAreal Flood WarningILNOhio, Switzerland6 hr
Jun 19, 1:18 PM EDTRiver Flood AdvisoryILNDearborn, Franklin9 hr

Nearby

Flash Flood Warnings in Indiana, 2021Every flash flood warning in 2021

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.