Alert archive / Indiana / Flash Flood Warnings in 2026

Flash Flood Warning 80, NWS Indianapolis, IN

August 19, 2026Carroll County, Clinton County, Tippecanoe County, Indiana

NWS Indianapolis, IN issued this flash flood warning at Aug 19, 2026, 5:45 PM EDT for Carroll County, Clinton County, Tippecanoe 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
Aug 19, 2026, 5:45 PM EDT (21:45 UTC)
Expired
Aug 19, 2026, 8:37 PM EDT
In force
3 hr
Issued by
NWS Indianapolis, IN
Area
Storm-based polygon
Flood severity
None

Counties Carroll County, IN, Clinton County, IN, Tippecanoe County, IN

The radar

The Indianapolis radar (KIND), 88 km from the middle of the area, began a volume at 21:48 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

TimeReportWhereRemark
Aug 19, 6:30 PM EDTFLASH FLOOD6 Se Rossville, INLocated in north center Clinton County. Time estimated from radar.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

Did it verify

Verified. The Iowa Environmental Mesonet's Cow matched one storm report to this flash flood warning; the first came 45 minutes after it went out.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 9.8 hours before the alert went out and 172 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, Lincoln, IL at 12:00Z on 2026-08-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 310 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Lincoln, IL at 12:00Z on 2026-08-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 17 square meters per square second.1939587897Sfc1 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
310 J/kg
Mixed-layer CIN
-93 J/kg
Mixed-layer LCL
917 m above ground
0-6 km bulk shear
42 kt
0-1 km storm-relative helicity
17 m²/s²
0-3 km storm-relative helicity
63 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

As transmitted.

014 
WGUS53 KIND 192145
FFWIND
INC015-023-157-200045-
/O.NEW.KIND.FF.W.0080.260819T2145Z-260820T0045Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Indianapolis IN
545 PM EDT Wed Aug 19 2026

The National Weather Service in Indianapolis has issued a

* Flash Flood Warning for...
  Northwestern Clinton County in central Indiana...
  Southwestern Carroll County in north central Indiana...
  Northeastern Tippecanoe County in west central Indiana...

* Until 845 PM EDT.

* At 545 PM EDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Between 1 and 3 inches of rain 
  have fallen. Additional rainfall amounts of 0.5 to 1.5 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...
  Rossville and Battle Ground.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4053 8651 4036 8648 4036 8669 4053 8685

FLASH FLOOD...RADAR INDICATED

$$

CP
1 follow-up statement
992 
WGUS73 KIND 200037
FFSIND

Flash Flood Statement
National Weather Service Indianapolis IN
837 PM EDT Wed Aug 19 2026

INC015-023-157-200047-
/O.CAN.KIND.FF.W.0080.000000T0000Z-260820T0045Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Carroll IN-Clinton IN-Tippecanoe IN-
837 PM EDT Wed Aug 19 2026

...FLASH FLOOD WARNING FOR NORTHWESTERN CLINTON, SOUTHWESTERN 
CARROLL AND NORTHEASTERN TIPPECANOE COUNTIES HAS BEEN REPLACED WITH 
A FLOOD WARNING...

&&

LAT...LON 4053 8651 4036 8648 4036 8669 4053 8685

$$

AGM

What forecasters said that day

The local office's own words before this flash 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 flash flood warning went out at Aug 19, 3:33 PM EDT, 2 hours 12 minutes earlier. Its key messages:

  • Flood Watch in effect through 8AM Thursday across the northern half of central IN with localized flash flooding possible
  • Scattered to numerous showers and storms are expected this afternoon into tonight, isolated severe storms are possible
  • Generally drier late this week through early next week, but there is a chance for showers and storms late Friday into Saturday
Area forecast discussion, Aug 19, 3:33 PM EDT, 2 hours 12 minutes before
Area Forecast Discussion
National Weather Service Indianapolis IN
333 PM EDT Wed Aug 19 2026

.KEY MESSAGES...

- Flood Watch in effect through 8AM Thursday across the northern
half of central IN with localized flash flooding possible

- Scattered to numerous showers and storms are expected this
afternoon into tonight, isolated severe storms are possible

- Generally drier late this week through early next week, but there
is a chance for showers and storms late Friday into Saturday

&&

.DISCUSSION (This evening through Wednesday)...
Issued at 332 PM EDT Wed Aug 19 2026

As of this afternoon, scattered thunderstorms have popped up across
north-central Indiana. There is a marginal severe threat this
afternoon through the evening with isolated damaging winds
possible and some hail as well. With how saturated the ground is,
trees could more easily be knocked over.

Flooding continues to be the main threat for the forecast area
unfortunately. Some of these afternoon storms are already
producing rain rate of over 2 in/hr, across northern portion of
the forecast area. A flood watch is in effect through the morning.
Rivers and creeks are likely to rise again from this rain. Where
exact impacts occur will depend on which river basin the highest
amounts of rainfall fall. Models have been largely highlighting
that some of these highest amounts will fall over the White River
basin, which could lead to river points along the White within
Indianapolis to return to action stage by the weekend and can't
rule out a chance of brief return to Minor flooding too.

Rivers remain high across the area, continue avoiding flood waters
and stay out of rivers.

Behind the wave, northwest flow will become more dominate aloft as
upper high pressure builds over the desert SW and upper troughing
builds to the NE of the forecast area. Meanwhile at the surface,
weak high pressure will generally be in the region leading to a
mostly dry rest of the forecast period outside of periodic chances
for showers and storms. Saturday seems to be the next best chance of
precipitation but again, those are still low chances. Temperatures
throughout the forecast period will see highs in the upper 70s to
low/mid 80s and lows from the upper 50s to mid 60s.

&&

.AVIATION (18Z TAF Issuance)...
Issued at 114 PM EDT Wed Aug 19 2026

Impacts:

- Scattered to numerous showers/storms this afternoon/tonight

- Fog/low ceilings likely late tonight into Thursday morning

Discussion:

Convection is developing across the area and all sites will likely
see impacts at some point this afternoon into tonight. Will carry a
combination of PROB30 and TEMPO groups at all sites. Fluctuating
restrictions will be likely during convective impacts at all sites.

Late tonight as the cold front passes through the area, low clouds
and fog are likely to develop, with IFR or worse conditions
possible.

Winds will be southwesterly this afternoon, becoming light and
variable to calm overnight, then northerly late in the period.

&&

.IND WATCHES/WARNINGS/ADVISORIES...
Flood Watch through Thursday morning for INZ021-028>031-035>049-
054>057.

&&

AVIATION...Nield
DISCUSSION...KF
Hazardous weather outlook, Aug 19, 3:50 PM EDT, 1 hour 55 minutes before
Hazardous Weather Outlook
National Weather Service Indianapolis IN
350 PM EDT Wed Aug 19 2026

INZ021-028>031-035>049-054>057-202000-
Carroll-Warren-Tippecanoe-Clinton-Howard-Fountain-Montgomery-Boone-
Tipton-Hamilton-Madison-Delaware-Randolph-Vermillion-Parke-Putnam-
Hendricks-Marion-Hancock-Henry-Morgan-Johnson-Shelby-Rush-
350 PM EDT Wed Aug 19 2026

This hazardous weather outlook is for central Indiana.

.DAY ONE...Through Tonight.

Widespread minor to moderate river flooding will continue along the
Wabash, White, and East Fork White Rivers and adjacent lowlands.

A flood watch is in effect through 8 AM Thursday as training
thunderstorms over saturated soils could lead to localized flash
flooding. Isolated strong to severe storms are also possible with
primarily a damaging wind gust threat and potential for some hail.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Thunderstorms will be possible on Saturday. Severe weather is not
expected, but lightning is a hazard with any storm.

.SPOTTER INFORMATION STATEMENT...

Spotters are encouraged to report rainfall amounts or any severe
weather later today into tonight.

&&

More information, along with other weather, hydrological and climate
information can be found at http://weather.gov/ind

INZ051>053-060>065-067>072-202000-
Vigo-Clay-Owen-Sullivan-Greene-Monroe-Brown-Bartholomew-Decatur-Knox-
Daviess-Martin-Lawrence-Jackson-Jennings-
350 PM EDT Wed Aug 19 2026

This hazardous weather outlook is for central Indiana.

.DAY ONE...Through Tonight.

Widespread minor to moderate river flooding will continue along the
Wabash, White, and East Fork White Rivers and adjacent lowlands.

Scattered thunderstorms are possible late today into tonight. Isolated
strong to severe storms are also possible with primarily a damaging
wind gust threat and potential for some hail.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Thunderstorms will be possible on Saturday. Severe weather is not
expected, but lightning is a hazard with any storm.

.SPOTTER INFORMATION STATEMENT...

Spotters are encouraged to report rainfall amounts or any severe
weather later today into tonight.

&&

More information, along with other weather, hydrological and climate
information can be found at http://weather.gov/ind

In the hours before

Local storm report, Aug 19, 4:24 PM EDT, 1 hour 21 minutes before
Preliminary Local Storm Report
National Weather Service Indianapolis IN
424 PM EDT Wed Aug 19 2026

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

0338 PM     Rain             4 WNW Kokomo            40.49N 86.21W
08/19/2026  M1.63 Inch       Howard             IN   Trained Spotter

&&

BH
Local storm report, Aug 19, 4:36 PM EDT, 1 hour 9 minutes before
Preliminary Local Storm Report
National Weather Service Indianapolis IN
436 PM EDT Wed Aug 19 2026

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

0345 PM     Rain             1 E Linwood             40.19N 85.67W
08/19/2026  M0.80 Inch       Madison            IN   Public

&&

BH
Special weather statement, Aug 19, 4:39 PM EDT, 1 hour 6 minutes before
Special Weather Statement
National Weather Service Indianapolis IN
439 PM EDT Wed Aug 19 2026

INZ040-041-192115-
Madison IN-Delaware IN-
439 PM EDT Wed Aug 19 2026

...A strong thunderstorm will impact portions of northern Madison and
northwestern Delaware Counties through 515 PM EDT...

At 438 PM EDT, Doppler radar was tracking a strong thunderstorm
capable of producing a landspout near Alexandria, or 9 miles
southwest of Fairmount, moving east at 25 mph.

HAZARD...Landspouts and winds in excess of 40 mph.

SOURCE...Radar indicated.

IMPACT...Minor damage to outdoor objects is possible. Gusty winds
         could knock down tree limbs and blow around unsecured
         objects.

Locations impacted include...
Elwood, Alexandria, Summitville, and Orestes.

This includes Interstate 69 between mile markers 240 and 252.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 4019 8550 4025 8583 4036 8582 4038 8573
      4038 8552
TIME...MOT...LOC 2038Z 271DEG 23KT 4030 8574

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

Updike

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 19, 4:07 AM EDTFlood WatchINDBoone, Carroll, Clinton, Delaware, Fountain, Hamilton and 18 more28 hr
Aug 19, 2:32 PM EDTAreal Flood AdvisoryINDCarroll, Clinton, Tippecanoe4 hr
Aug 19, 2:53 PM EDTAreal Flood AdvisoryINDCarroll, Howard26 min
Aug 19, 3:19 PM EDTFlash Flood WarningINDCarroll, Howard4 hr
Aug 19, 3:49 PM EDTAreal Flood AdvisoryINDMadison82 min
Aug 19, 4:39 PM EDTSpecial Weather StatementINDMadison36 min
Aug 19, 5:09 PM EDTAreal Flood AdvisoryINDDelaware, Madison, Randolph4 hr
Aug 19, 5:09 PM EDTSevere Thunderstorm WarningINDDelaware, Madison37 min
Aug 19, 5:27 PM EDTTornado WarningINDDelaware19 min
Aug 19, 5:50 PM EDTSpecial Weather StatementINDDelaware40 min
Aug 19, 5:58 PM EDTSpecial Weather StatementINDClinton47 min
Aug 19, 6:12 PM EDTSpecial Weather StatementINDTipton48 min
Aug 19, 6:21 PM EDTFlash Flood WarningINDClinton, Fountain, Tippecanoe, Warren5 hr
Aug 19, 6:25 PM EDTSevere Thunderstorm WarningINDClinton50 min
Aug 19, 6:39 PM EDTFlash Flood WarningINDClinton, Howard, Tipton5 hr
Aug 19, 6:43 PM EDTSevere Thunderstorm WarningINDBoone, Clinton, Hamilton, Tipton47 min
Aug 19, 7:05 PM EDTFlash Flood WarningINDWarren3 hr
Aug 19, 7:13 PM EDTSpecial Weather StatementINDHamilton32 min
Aug 19, 7:25 PM EDTFlash Flood WarningINDMadison, Tipton5 hr
Aug 19, 7:29 PM EDTSevere Thunderstorm WarningINDHamilton, Madison, Tipton46 min
Aug 19, 7:44 PM EDTFlash Flood WarningINDHamilton3 hr
Aug 19, 7:57 PM EDTSevere Thunderstorm WarningINDDelaware, Hamilton, Hancock, Henry, Madison48 min

Nearby

Flash Flood Warnings in Indiana, 2026Every flash 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.