Alert archive / Indiana / Flash Flood Warnings in 2021

Flash Flood Warning 2, NWS Indianapolis, IN

June 12, 2021Randolph County, Indiana

NWS Indianapolis, IN issued this flash flood warning at Jun 12, 2021, 10:32 PM EDT for Randolph County, Indiana. It was in force for 3 hr. 1 report 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, 10:32 PM EDT (02:32 UTC)
Expired: Jun 13, 2021, 1:30 AM EDT
In force: 3 hr
Issued by: NWS Indianapolis, IN
Area: Storm-based polygon
Flood severity: None

County Randolph County, IN

The radar

The Cincinnati radar (KILN), 120 km from the middle of the area, began a volume at 02:32 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, 11:00 PM EDT	FLASH FLOOD	Winchester, IN	WATER FLOWING OVER A ROAD IN WINCHESTER WITH STANDING WATER NOTED ALONG MANY SIDE STREETS IN TOWN.

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, 2.5 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-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: 647 J/kg
Mixed-layer CIN: -37 J/kg
Mixed-layer LCL: 1794 m above ground
0-6 km bulk shear: 13 kt
0-1 km storm-relative helicity: -7 m²/s²
0-3 km storm-relative helicity: 58 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

538 
WGUS53 KIND 130232
FFWIND
INC135-130530-
/O.NEW.KIND.FF.W.0002.210613T0232Z-210613T0530Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Indianapolis IN
1032 PM EDT Sat Jun 12 2021

The National Weather Service in Indianapolis has issued a

* Flash Flood Warning for...
  Randolph County in east central Indiana...

* Until 130 AM EDT.

* At 1032 PM EDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Between 1.5 and 2.5 inches of 
  rain have fallen since 915 pm. Additional rainfall amounts of 1 to 
  2 inches are possible in the warned area. Flash flooding is 
  ongoing or expected to begin shortly.

  HAZARD...Flash flooding caused by thunderstorms.

  SOURCE...Radar.

  IMPACT...Flash flooding of small creeks and streams, urban
           areas, highways, streets and underpasses as well as
           other poor drainage and low-lying areas.

* Some locations that will experience flash flooding include...
  Winchester, Union City, Farmland, Lynn, Ridgeville and Saratoga.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Be especially cautious at night when it is harder to recognize the 
dangers of flooding.

Please report observed flooding to local emergency services or law 
enforcement and request they pass this information to the National 
Weather Service when you can do so safely.

&&

LAT...LON 4001 8481 4002 8509 4030 8516 4031 8481
      4015 8481 4013 8481 4006 8481

FLASH FLOOD...RADAR INDICATED

$$

Ryan

2 follow-up statements

392 
WGUS73 KIND 130419
FFSIND

Flash Flood Statement
National Weather Service Indianapolis IN
1219 AM EDT Sun Jun 13 2021

INC135-130530-
/O.CON.KIND.FF.W.0002.000000T0000Z-210613T0530Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Randolph IN-
1219 AM EDT Sun Jun 13 2021

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 130 AM EDT EARLY THIS 
MORNING FOR RANDOLPH COUNTY...

At 1219 AM EDT, local law enforcement reported flash flooding had 
occurred in portions of Winchester. Between 2 and 3 inches of rain 
have fallen.

HAZARD...Flash flooding caused by thunderstorms.

SOURCE...Law enforcement reported.

IMPACT...Flash flooding of small creeks and streams, urban areas,
         highways, streets and underpasses as well as other poor
         drainage and low-lying areas.

Some locations that will experience flash flooding include...
  Winchester, Union City, Farmland, Lynn, Ridgeville and Saratoga.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Be especially cautious at night when it is harder to recognize the 
dangers of flooding.

Please report observed flooding to local emergency services or law 
enforcement and request they pass this information to the National 
Weather Service when you can do so safely.

&&

LAT...LON 4001 8481 4002 8509 4030 8516 4031 8481
      4015 8481 4013 8481 4006 8481

FLASH FLOOD...OBSERVED

$$

AW

377 
WGUS73 KIND 130526
FFSIND

Flash Flood Statement
National Weather Service Indianapolis IN
126 AM EDT Sun Jun 13 2021

INC135-130536-
/O.EXP.KIND.FF.W.0002.000000T0000Z-210613T0530Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Randolph IN-
126 AM EDT Sun Jun 13 2021

...FLASH FLOOD WARNING WILL EXPIRE AT 130 AM EDT EARLY THIS MORNING 
FOR RANDOLPH COUNTY...

The heavy rain has ended. Flooding is no longer expected to pose a 
threat. Please continue to heed remaining road closures.

LAT...LON 4001 8481 4002 8509 4030 8516 4031 8481
      4015 8481 4013 8481 4006 8481

$$

JP

The office that day

Everything else NWS Indianapolis, IN issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 12, 8:28 PM EDT	Special Weather Statement	IND	Clinton	32 min
Jun 12, 8:41 PM EDT	Special Weather Statement	IND	Shelby	34 min
Jun 12, 8:57 PM EDT	Special Weather Statement	IND	Madison	33 min
Jun 12, 9:08 PM EDT	Severe Thunderstorm Warning	IND	Delaware, Henry, Madison	37 min
Jun 12, 9:23 PM EDT	Special Weather Statement	IND	Boone, Montgomery	37 min
Jun 12, 9:34 PM EDT	Special Weather Statement	IND	Hancock, Henry, Randolph	26 min
Jun 12, 9:51 PM EDT	Severe Thunderstorm Warning	IND	Hancock, Henry, Madison, Rush	24 min
Jun 12, 10:15 PM EDT	Special Weather Statement	IND	Hancock, Henry, Rush, Shelby	45 min
Jun 12, 10:16 PM EDT	Special Weather Statement	IND	Randolph	29 min
Jun 12, 10:27 PM EDT	Severe Thunderstorm Warning	IND	Randolph	33 min
Jun 12, 10:40 PM EDT	Special Weather Statement	IND	Marion	35 min
Jun 12, 10:43 PM EDT	Severe Thunderstorm Warning	IND	Hancock, Johnson, Marion	32 min
Jun 12, 10:55 PM EDT	Severe Thunderstorm Warning	IND	Hancock, Shelby	23 min
Jun 12, 11:15 PM EDT	Flash Flood Warning	IND	Marion	3 hr
Jun 12, 11:23 PM EDT	Special Weather Statement	IND	Johnson, Marion, Shelby	37 min
Jun 13, 8:41 AM EDT	River Flood Warning	IND	Delaware, Randolph	3 hr

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.