Alert archive / Indiana / Flash Flood Warnings in 2021

Flash Flood Warning 3, NWS Wilmington, OH

June 12, 2021Ripley County, Indiana

NWS Wilmington, OH issued this flash flood warning at Jun 12, 2021, 5:36 PM EDT for Ripley County, Indiana. It was in force for 3 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: Jun 12, 2021, 5:36 PM EDT (21:36 UTC)
Expired: Jun 12, 2021, 8:39 PM EDT
In force: 3 hr
Issued by: NWS Wilmington, OH
Area: Storm-based polygon
Flood severity: None

County Ripley County, IN

The radar

The Indianapolis radar (KIND), 98 km from the middle of the area, began a volume at 21:36 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
Jun 12, 6:30 PM EDT	FLOOD	3 Nnw Osgood, IN	HIGH WATER REPORTED ON NUMEROUS ROADS BEWTEEN NAPOLEON AND OSGOOD.
Jun 12, 6:30 PM EDT	FLASH FLOOD	Napoleon, IN	HIGH WATER SEVERAL INCHES DEEP FLOWING ACROSS U.S. 421 IN NAPOLEON.

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 12:00Z, 9.6 hours before the alert went out and 132 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: 656 J/kg
Mixed-layer CIN: -31 J/kg
Mixed-layer LCL: 828 m above ground
0-6 km bulk shear: 10 kt
0-1 km storm-relative helicity: 50 m²/s²
0-3 km storm-relative helicity: 87 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

815 
WGUS51 KILN 122136
FFWILN
INC137-130045-
/O.NEW.KILN.FF.W.0003.210612T2136Z-210613T0045Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Wilmington OH
536 PM EDT Sat Jun 12 2021

The National Weather Service in Wilmington has issued a

* Flash Flood Warning for...
  Northwestern Ripley County in southeastern Indiana...

* Until 845 PM EDT.

* At 536 PM EDT, radar indicated thunderstorms producing heavy rain 
  across the warned area. Between 1.5 and 2.5 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...
  Osgood, Napoleon, Otter Village and Ballstown.

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 3928 8527 3928 8524 3911 8525 3910 8538
      3921 8540 3922 8538 3924 8536 3924 8535
      3925 8534 3925 8533 3926 8532 3926 8531
      3926 8530 3927 8530 3928 8528

FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL...1-1.5 INCHES IN 2 HOURS 

$$

Coniglio

2 follow-up statements

883 
WGUS71 KILN 122244
FFSILN

Flash Flood Statement
National Weather Service Wilmington OH
644 PM EDT Sat Jun 12 2021

INC137-130045-
/O.CON.KILN.FF.W.0003.000000T0000Z-210613T0045Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Ripley IN-
644 PM EDT Sat Jun 12 2021

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 845 PM EDT THIS 
EVENING FOR NORTHWESTERN RIPLEY COUNTY...

At 644 PM EDT, local law enforcement reported flash flooding in U.S. 
421. Between 1.5 and 2.5 inches of rain have fallen.

HAZARD...Flash flooding caused by thunderstorms.

SOURCE...Law enforcement.

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...
  Osgood, Napoleon, Otter Village and Ballstown.

High water several inches deep is flowing across U.S. 421 in 
Napoleon.

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 3928 8527 3928 8524 3911 8525 3910 8538
      3921 8540 3922 8538 3924 8536 3924 8535
      3925 8534 3925 8533 3926 8532 3926 8531
      3926 8530 3927 8530 3928 8528

FLASH FLOOD...OBSERVED
EXPECTED RAINFALL...1-1.5 INCHES IN 2 HOURS 

$$

Coniglio

883 
WGUS71 KILN 130039
FFSILN

Flash Flood Statement
National Weather Service Wilmington OH
839 PM EDT Sat Jun 12 2021

INC137-130049-
/O.CAN.KILN.FF.W.0003.000000T0000Z-210613T0045Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Ripley IN-
839 PM EDT Sat Jun 12 2021

...FLASH FLOOD WARNING IS CANCELLED FOR NORTHWESTERN RIPLEY COUNTY...

The heavy rain has ended. Widespread flooding is no longer expected 
to pose a threat. However, lingering high water may affect a few 
roads this evening. Please continue to heed remaining road closures.

LAT...LON 3928 8527 3928 8524 3911 8525 3910 8538
      3921 8540 3922 8538 3924 8536 3924 8535
      3925 8534 3925 8533 3926 8532 3926 8531
      3926 8530 3927 8530 3928 8528

$$

Coniglio

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 12, 4:51 PM EDT	Special Weather Statement	ILN	Ripley	24 min
Jun 12, 5:21 PM EDT	Areal Flood Advisory	ILN	Franklin, Ripley	3 hr
Jun 12, 5:24 PM EDT	Severe Thunderstorm Warning	ILN	Ripley	51 min
Jun 12, 6:25 PM EDT	Special Weather Statement	ILN	Fayette	35 min
Jun 12, 6:47 PM EDT	Areal Flood Advisory	ILN	Fayette, Franklin	56 min
Jun 12, 7:00 PM EDT	Special Weather Statement	ILN	Fayette	30 min
Jun 12, 7:07 PM EDT	Severe Thunderstorm Warning	ILN	Fayette, Franklin	38 min
Jun 12, 7:17 PM EDT	Flash Flood Warning	ILN	Fayette, Franklin	3 hr
Jun 12, 7:59 PM EDT	Special Weather Statement	ILN	Fayette	31 min

Nearby

Flash Flood Warnings in Indiana, 2021 Every 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.