Alert archive / Indiana / River Flood Warnings in 2026

River Flood Warning 178, NWS Indianapolis, IN

August 20, 20265 counties in Indiana

NWS Indianapolis, IN issued this river flood warning at Aug 20, 2026, 3:44 AM EDT for 5 counties in Indiana. It took effect at Aug 20, 2026, 8:00 AM EDT. It was in force for 39 hr.

The area

The counties it named.

The facts

Issued: Aug 20, 2026, 3:44 AM EDT (07:44 UTC)
In effect from: Aug 20, 2026, 8:00 AM EDT
Expired: Aug 21, 2026, 11:21 PM EDT
In force: 39 hr
Issued by: NWS Indianapolis, IN
Area: Storm-based polygon
Flood severity: Minor

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

The radar

The Indianapolis radar (KIND), 92 km from the middle of the area, began a volume at 07:45 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 river

Written for the forecast point Wabash River at Lafayette (LAFI3). The gauge peaked at 12.90 ft at Aug 20, 2026, 10:00 PM EDT.

Action stage: 7 ft
Minor stage: 11 ft
Moderate stage: 18 ft
Major stage: 26 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 03335500, one reading an hour, from a day before the product to a day after it ended. Flood stages are today's.

What forecasters said that day

The local office's own words before this river flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Indianapolis, IN wrote its last area forecast discussion before this river flood warning went out at Aug 20, 3:16 AM EDT, 28 minutes earlier.

Area forecast discussion, Aug 20, 3:16 AM EDT, 28 minutes before

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Hazardous weather outlook, Aug 20, 3:36 AM EDT, 8 minutes before

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In the hours before

Local storm report, Aug 19, 10:17 PM EDT, 5 hours 27 minutes before

Preliminary Local Storm Report
National Weather Service Indianapolis IN
1017 PM EDT Wed Aug 19 2026

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0515 PM     Tstm Wnd Dmg     1 E Alexandria          40.26N 85.66W
08/19/2026                   Madison            IN   Public

            A tree was blown down.

&&

BH

Local storm report, Aug 19, 11:22 PM EDT, 4 hours 22 minutes before

Preliminary Local Storm Report
National Weather Service Indianapolis IN
1122 PM EDT Wed Aug 19 2026

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0630 PM     Flash Flood      6 SE Rossville          40.37N 86.51W
08/19/2026                   Clinton            IN   911 Call Center

            Located in north center Clinton County. Time
            estimated from radar.

&&

BH

Local storm report, Aug 19, 11:24 PM EDT, 4 hours 20 minutes before

Preliminary Local Storm Report
National Weather Service Indianapolis IN
1124 PM EDT Wed Aug 19 2026

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0730 PM     Flash Flood      2 W Michigantown        40.33N 86.43W
08/19/2026                   Clinton            IN   911 Call Center

            Flash flooding in northeast Clinton County.
            Time estimated from radar.

&&

BH

Special weather statement, Aug 20, 12:46 AM EDT, 2 hours 58 minutes before

Special Weather Statement
National Weather Service Indianapolis IN
1246 AM EDT Thu Aug 20 2026

INZ036-043-044-051-052-200530-
Clay IN-Montgomery IN-Parke IN-Vermillion IN-Vigo IN-
1246 AM EDT Thu Aug 20 2026

...Strong thunderstorms will impact portions of Vigo, northwestern
Clay, Parke, Vermillion and southwestern Montgomery Counties through
130 AM EDT...

At 1245 AM EDT, Doppler radar was tracking strong thunderstorms along
a line extending from 6 miles west of Newport to 6 miles southwest of
Vermilion. Movement was east at 40 mph.

HAZARD...Wind gusts up to 50 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects.

Locations impacted include...
Terre Haute, Brazil, Clinton, Rockville, Newport, West Terre Haute,
Fairview Park, Seelyville, Montezuma, Knightsville, Rosedale,
Harmony, Dana, Staunton, Waveland, Carbon, Universal, Mecca,
Bloomingdale, and Marshall.

This includes Interstate 70 between mile markers 1 and 25.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3991 8753 3991 8698 3987 8699 3987 8701
      3978 8701 3934 8711 3940 8753
TIME...MOT...LOC 0445Z 269DEG 36KT 3985 8752 3950 8765

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...50 MPH

Updike

Special weather statement, Aug 20, 2:45 AM EDT, 59 minutes before

Special Weather Statement
National Weather Service Indianapolis IN
245 AM EDT Thu Aug 20 2026

INZ047-048-052>057-060>065-067>072-200745-
Rush IN-Johnson IN-Daviess IN-Clay IN-Brown IN-Martin IN-Decatur IN-
Bartholomew IN-Shelby IN-Greene IN-Hancock IN-Knox IN-Owen IN-
Morgan IN-Lawrence IN-Sullivan IN-Jackson IN-Monroe IN-Marion IN-
Jennings IN-
245 AM EDT Thu Aug 20 2026

...A strong thunderstorm will impact portions of southern Hancock,
Monroe, Rush, Morgan, Decatur, Johnson, Knox, southern Owen, Martin,
southeastern Marion, Lawrence, Jackson, Jennings, Daviess, Shelby,
Brown, southeastern Sullivan, Bartholomew, south central Clay and
Greene Counties through 345 AM EDT...

At 245 AM EDT, Doppler radar was tracking a strong thunderstorm 9
miles southwest of Franklin, or 17 miles northwest of Columbus,
moving east at 45 mph.

HAZARD...Winds in excess of 40 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects.

Locations impacted include...
Indianapolis, Bloomington, Columbus, Shelbyville, Vincennes, Seymour,
Bedford, Greenwood, Franklin, Greenfield, Beech Grove, Martinsville,
Washington, Greensburg, Mooresville, North Vernon, Rushville, Linton,
Brownstown, and Bloomfield.

This includes the following highways...
 Interstate 65 between mile markers 37 and 107.
 Interstate 74 between mile markers 93 and 144.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3874 8750 3896 8751 3974 8608 3979 8530
      3927 8530 3920 8544 3891 8545 3891 8554
      3882 8563 3881 8579 3873 8588 3874 8591
      3878 8620 3869 8631 3869 8668 3853 8668
      3849 8695 3854 8743 3842 8774
TIME...MOT...LOC 0645Z 267DEG 37KT 3938 8615

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH

McGINNIS

Local storm report, Aug 20, 3:01 AM EDT, 43 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 19, 8:19 PM EDT	Severe Thunderstorm Warning	IND	Hancock, Henry, Rush	41 min
Aug 19, 8:37 PM EDT	Areal Flood Warning	IND	Carroll, Clinton, Tippecanoe	4 hr
Aug 19, 9:03 PM EDT	Areal Flood Advisory	IND	Delaware, Hancock, Henry, Madison, Randolph	5 hr
Aug 19, 9:35 PM EDT	Areal Flood Warning	IND	Warren	100 min
Aug 19, 10:19 PM EDT	Areal Flood Warning	IND	Boone, Fountain, Hendricks, Montgomery, Parke	3 hr
Aug 19, 10:36 PM EDT	Areal Flood Advisory	IND	Hamilton	112 min
Aug 19, 10:45 PM EDT	Areal Flood Warning	IND	Hamilton, Marion	107 min
Aug 19, 11:01 PM EDT	Areal Flood Advisory	IND	Clay, Hendricks, Morgan, Parke, Putnam	16 hr
Aug 19, 11:04 PM EDT	Areal Flood Advisory	IND	Hancock, Johnson, Rush, Shelby	16 hr
Aug 19, 11:13 PM EDT	Areal Flood Warning	IND	Clinton	69 min
Aug 19, 11:17 PM EDT	Areal Flood Advisory	IND	Boone, Clinton, Fountain, Montgomery, Tippecanoe, Warren	63 min
Aug 20, 12:15 AM EDT	Areal Flood Advisory	IND	Clinton, Tippecanoe	6 hr
Aug 20, 12:32 AM EDT	Areal Flood Advisory	IND	Hamilton, Marion	14 hr
Aug 20, 12:46 AM EDT	Areal Flood Advisory	IND	Parke	4 hr
Aug 20, 12:46 AM EDT	Special Weather Statement	IND	Clay, Parke, Vermillion, Vigo	44 min
Aug 20, 12:49 AM EDT	Areal Flood Warning	IND	Madison	7 hr
Aug 20, 12:56 AM EDT	Areal Flood Advisory	IND	Clay, Parke, Putnam, Vermillion, Vigo	4 hr
Aug 20, 1:12 AM EDT	Severe Thunderstorm Warning	IND	Clay, Parke, Putnam, Vermillion, Vigo	33 min
Aug 20, 1:38 AM EDT	Severe Thunderstorm Warning	IND	Clay, Greene, Morgan, Owen, Putnam, Sullivan and 1 more	37 min
Aug 20, 1:54 AM EDT	Severe Thunderstorm Warning	IND	Hendricks, Morgan, Owen, Putnam	51 min
Aug 20, 2:09 AM EDT	Severe Thunderstorm Warning	IND	Brown, Greene, Hendricks, Johnson, Lawrence, Marion and 3 more	36 min
Aug 20, 2:45 AM EDT	Special Weather Statement	IND	Bartholomew, Brown, Daviess, Decatur, Greene, Jackson and 10 more	60 min
Aug 20, 2:55 AM EDT	Flash Flood Warning	IND	Hendricks, Morgan, Putnam	6 hr
Aug 20, 3:32 AM EDT	Severe Thunderstorm Warning	IND	Decatur, Jennings, Rush, Shelby	28 min
Aug 20, 3:44 AM EDT	River Flood Warning	IND	Tippecanoe	34 hr
Aug 20, 4:16 AM EDT	Areal Flood Advisory	IND	Hamilton	3 hr
Aug 20, 4:36 AM EDT	Areal Flood Advisory	IND	Martin	3 hr
Aug 20, 8:44 AM EDT	Areal Flood Warning	IND	Hamilton	26 hr
Aug 20, 9:55 AM EDT	River Flood Warning	IND	Monroe, Morgan, Owen	28 hr
Aug 20, 9:55 AM EDT	River Flood Warning	IND	Marion, Morgan	38 hr
Aug 20, 9:55 AM EDT	River Flood Warning	IND	Monroe, Morgan, Owen	8 hr
Aug 20, 10:00 AM EDT	River Flood Warning	IND	Clinton, Tippecanoe	13 hr
Aug 20, 12:34 PM EDT	River Flood Warning	IND	Jackson, Lawrence, Washington	3 days
Aug 20, 2:33 PM EDT	Areal Flood Warning	IND	Rush	12 hr
Aug 20, 6:31 PM EDT	River Flood Warning	IND	Bartholomew, Johnson, Shelby	27 hr

Nearby

River Flood Warnings in Indiana, 2026 Every river flood warning in 2026

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive; the gauge from the NWS water service and the USGS.