Alert archive / Indiana / Flash Flood Warnings in 2020

Flash Flood Warning 6, NWS Indianapolis, IN

June 4, 20204 counties in Indiana

NWS Indianapolis, IN issued this flash flood warning at Jun 4, 2020, 12:26 AM EDT for 4 counties in Indiana. It was in force for 4 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 4, 2020, 12:26 AM EDT (04:26 UTC)
Expired: Jun 4, 2020, 4:30 AM EDT
In force: 4 hr
Issued by: NWS Indianapolis, IN
Area: Storm-based polygon
Flood severity: None

Counties Fountain County, IN, Parke County, IN, Vermillion County, IN, Warren County, IN

The radar

The Indianapolis radar (KIND), 104 km from the middle of the area, began a volume at 04:24 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

Lincoln, IL (KILX), launched 00:00Z, 4.4 hours before the alert went out and 104 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: 1721 J/kg
Mixed-layer CIN: -36 J/kg
Mixed-layer LCL: 1615 m above ground
0-6 km bulk shear: 19 kt
0-1 km storm-relative helicity: 12 m²/s²
0-3 km storm-relative helicity: 73 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

The text

As transmitted.

727 
WGUS53 KIND 040426
FFWIND
INC045-121-165-171-040830-
/O.NEW.KIND.FF.W.0006.200604T0426Z-200604T0830Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Indianapolis IN
1226 AM EDT Thu Jun 4 2020

The National Weather Service in Indianapolis has issued a

* Flash Flood Warning for...
  Fountain County in west central Indiana...
  Northwestern Parke County in west central Indiana...
  Southwestern Warren County in west central Indiana...
  Northern Vermillion County in west central Indiana...

* Until 430 AM EDT.

* At 1223 AM EDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Up to one and one half inch of 
  rain has already fallen. Flash flooding is ongoing or expected to 
  begin shortly.

  HAZARD...Flash flooding caused by thunderstorms.

  SOURCE...Radar indicated.

  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 will experience flooding include...
  Covington, Veedersburg, Cayuga, West Lebanon, Hillsboro, Kingman,
  Perrysville, Newtown, Mellott, State Line City, Wallace, Lodi,
  Foster, Yeddo and Gessie.

# This includes Interstate 74 between mile markers 1 and 21.
 
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.

&&

LAT...LON 4027 8753 4027 8714 3990 8714 3989 8753

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

$$

JAS

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 3, 8:12 PM EDT	Special Weather Statement	IND	Rush	18 min
Jun 3, 8:29 PM EDT	Special Weather Statement	IND	Parke	31 min
Jun 3, 9:34 PM EDT	Severe Thunderstorm Warning	IND	Parke, Vermillion	26 min
Jun 3, 10:00 PM EDT	Severe Thunderstorm Warning	IND	Clay, Parke, Vermillion, Vigo	45 min
Jun 3, 10:50 PM EDT	Flash Flood Warning	IND	Parke, Vermillion, Vigo	4 hr
Jun 4, 2:47 AM EDT	Areal Flood Warning	IND	Parke, Vermillion, Vigo	6 hr
Jun 4, 3:03 AM EDT	Special Weather Statement	IND	Sullivan, Vigo	42 min
Jun 4, 4:27 AM EDT	Areal Flood Warning	IND	Fountain, Parke, Vermillion, Warren	6 hr
Jun 4, 4:43 PM EDT	Special Weather Statement	IND	Greene	47 min

Nearby

Flash Flood Warnings in Indiana, 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.