Flash Flood Warning 57, NWS Indianapolis, IN

356 
WGUS53 KIND 122115
FFWIND
INC079-130400-
/O.EXT.KIND.FF.W.0057.000000T0000Z-260813T0400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Indianapolis IN
515 PM EDT Wed Aug 12 2026

The National Weather Service in Indianapolis has extended the

* Flash Flood Warning for...
  Jennings County in southeastern Indiana...

* Until midnight EDT tonight.

* At 515 PM EDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Between 1 and 5 inches of rain 
  have fallen. Additional rainfall amounts up to 0.25 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...
  North Vernon, Vernon, Country Squire Lakes, Butlerville, Hayden, 
  Paris Crossing and Nebraska.

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 3883 8571 3882 8572 3883 8573 3881 8579
      3913 8580 3913 8557 3920 8544 3891 8544
      3891 8554 3888 8554 3888 8557 3885 8557
      3885 8561 3882 8561 3882 8570

FLASH FLOOD...RADAR INDICATED

$$

Eckhoff

911 
WGUS73 KIND 130343
FFSIND

Flash Flood Statement
National Weather Service Indianapolis IN
1143 PM EDT Wed Aug 12 2026

INC079-130353-
/O.CAN.KIND.FF.W.0057.000000T0000Z-260813T0400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Jennings IN-
1143 PM EDT Wed Aug 12 2026

...FLASH FLOOD WARNING FOR JENNINGS COUNTY HAS BEEN REPLACED WITH A 
FLOOD WARNING...

Flash Flood threat has ended for the warned area but a flooding 
threat continues.

&&

LAT...LON 3883 8571 3882 8572 3883 8573 3881 8579
      3913 8580 3913 8557 3920 8544 3891 8544
      3891 8554 3888 8554 3888 8557 3885 8557
      3885 8561 3882 8561 3882 8570

$$

KF

Area Forecast Discussion
National Weather Service Indianapolis IN
249 PM EDT Wed Aug 12 2026

.KEY MESSAGES...

- Marginally severe storms through daybreak along with potential
  additional flooding

- Flood Watch continues through today with additional strong to
  severe storms through the day, mainly during the afternoon

- Damaging winds will be the main threat today outside of flooding

- Storm chances continue through the rest of the week, severe
  weather threat looks lower

&&

.DISCUSSION (This evening through Wednesday)...
Issued at 249 PM EDT Wed Aug 12 2026

Surface Analysis this afternoon shows a broad surface trough
stretching from central IL to across Central Indiana. Convection
continued along this trough spreading showers and thunderstorms
across much of Central Indiana. Water vapor shows a steady NW flow
aloft in place, with an wave over IL, generating convection
downstream. Dewpoints remained high, in the 60s as much of the area
was under the influence of rain cooled air, however across southwest
Central Indiana, dew points were in the 70s, providing very humid
conditions along with the best instability.

This afternoon through the overnight...

The Thunderstorm complex over Central Indiana will continue to
propagate SE across Central Indiana through the late afternoon
hours. Heavy rains may result in additional flooding and severe
storms cannot be ruled out. Near 00Z the HRRR progresses this system
further SE, exiting Central Indiana as the forcing with upper wave
exits. Clouds will remain across the area through the evening with
rain cooled air in place.

Overnight as the LLJ resumes, more storm development will be
possible, but at this time HRRR is developing storms along the
boundary which at that time should be located across southern
Central Indiana due to the southward push from today's convection.
Thus will focus best pops overnight in those locations. Fog will
also be possible overnight due to high dew points, light winds and
plenty of lingering lower level moisture.

Thursday and Thursday Night...

More rain chances will be expected on Thursday afternoon and into
Thursday night. The persistent NW flow aloft is once again expected
to continue across central Indiana. An upper level wave is expected
to pass across central Indiana providing forcing through the
afternoon hours. The location of the surface trough will be key in
best initiation and propagation area. For now, this is suggested to
be across southern Central Indiana, but changes can occur overnight.
Forecast soundings show shallower CAPE at that time with values only
around 1000-1500 J/kg across Central Indiana, but much higher values
south of boundary in the warmer and humid air mass. Thus will again
use high pops on Thursday afternoon for more showers and storm
development given the familiar, favorable set-up in place. Again,
best chances for now will be across southern Central Indiana which
is the expected location of the surface trough. Flash Flood Watch
will be extended.

Friday and Friday Night...

Strong ridging within the upper flow is expected to push east toward
Indiana on Friday. This will allow surface warm front to surge
across Central Indiana as flow becomes southwesterly. Forecast
soundings again on Friday show a nearly saturated column at times,
with pwats once again over 2 inches. Again shallow CAPE appears
available. Thus again likely pops will be needed from the afternoon
and into the evening as the warm front surges northeast across the
area and acts as a focus for convection.

Saturday through Sunday Night...

Rain chances will persist on Saturday and Sunday as a warm frontal
boundary is suggested to be lingering across Central Indiana.
Working against this will be the pattern aloft where upper level
ridging will be building across Indiana from the west. This will
result in some subsidence within the mid and upper levels. However,
diurnal convection cannot be ruled out due to the frontal boundary
that will be present across the area on Saturday as a warm front and
on Sunday as a cold front crossing Indiana. SW flow ahead of the
cold front will result in hot weather on Saturday and again on
Sunday with highs in the 90s.

Monday through Wednesday...

Better chances for dry weather and temperatures closer to normal
will be expected during this time. Northwest flow is expected to
resume across the area on Monday due to upper ridging in place over
the Rockies. Little in the way of forcing looks to pass during this
time. Meanwhile at the lower levels, stronger Canadian high pressure
will be building behind Sunday's cold front on Monday and through
the first part of the next work week. This should result in partly
cloudy skies and highs in the 80s. Temps will moderate by Wednesday
as the surface high drifts farther east and southerly return flow
begins.

&&

.AVIATION (18Z TAF Issuance)...
Issued at 249 PM EDT Wed Aug 12 2026

Impacts:

- Thunderstorms moving across the area through 22Z. Brief MVFR
conditions possible with any TSRA that strikes a TAF site.

- Fog development expected tonight, especially near LAF/HUF.
Possible MVFR/IFR.

- TSRA return on Thursday after 18Z.

Discussion:

Thunderstorm complex across across Indiana will be passing across
HUF and IND near 18Z, then diving south to BMG by 19Z-20Z. MVFR
conditions will be possible with any TSRA.

HRRR suggests the convection dives SE and ends this evening. This
should lead to some convective debris clouds providing VFR Cigs
through the evening and overnight. Fog will be possible overnight,
as light winds, high dew points and recent rain provide good
conditions for fog development.

Additional convection will be possible after 18Z on Thursday as
another upper wave arrives and interacts with the warm and humid air
mass across central Indiana.

&&

.IND WATCHES/WARNINGS/ADVISORIES...
Flood Watch through Thursday evening for INZ021-028>031-035>049-
054>057-063>065-072.

Flood Watch through Thursday evening for INZ051>053-060>062-
069>071.

&&

AVIATION...Puma
DISCUSSION...Puma

Hazardous Weather Outlook
National Weather Service Indianapolis IN
1111 AM EDT Wed Aug 12 2026

INZ021-028>031-035>049-051>057-060>065-067>072-131515-
Carroll-Warren-Tippecanoe-Clinton-Howard-Fountain-Montgomery-Boone-
Tipton-Hamilton-Madison-Delaware-Randolph-Vermillion-Parke-Putnam-
Hendricks-Marion-Hancock-Henry-Vigo-Clay-Owen-Morgan-Johnson-Shelby-
Rush-Sullivan-Greene-Monroe-Brown-Bartholomew-Decatur-Knox-Daviess-
Martin-Lawrence-Jackson-Jennings-
1111 AM EDT Wed Aug 12 2026

This hazardous weather outlook is for central Indiana.

.DAY ONE...Through Tonight.

Flooding and flash flooding will continue across eastern Indiana.
More showers and storms are expected. This may result in additional
flooding or a worsening of ongoing flooding.

Damaging winds will also be possible with thunderstorms this
afternoon and into the evening.

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

Thunderstorms will be possible at times through the week, with
potential for multiple rounds of severe storms through at least
Thursday. Damaging winds and heavy rainfall will be the primary
threats.

.SPOTTER INFORMATION STATEMENT...

Spotters are encouraged to remain vigilant this week as multiple rounds
of severe storms will be possible.

&&

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

JP

Special Weather Statement
National Weather Service Indianapolis IN
204 PM EDT Wed Aug 12 2026

INZ047-048-055>057-065-121830-
Rush IN-Johnson IN-Decatur IN-Shelby IN-Hancock IN-Marion IN-
204 PM EDT Wed Aug 12 2026

...Strong thunderstorms will impact portions of Shelby, southern
Hancock, Rush, northwestern Decatur, Johnson and southeastern Marion
Counties through 230 PM EDT...

At 203 PM EDT, Doppler radar was tracking strong thunderstorms along
a line extending from Greenfield to Greenwood to 6 miles southeast of
Mooresville. Movement was east at 55 mph.

HAZARD...Wind gusts up to 50 mph and very heavy rainfall causing
         flash flooding.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs down and blow
         around unsecured objects. Saturated soil could cause
         uprooted trees.

Locations impacted include...
Indianapolis, Shelbyville, Greenwood, Franklin, Greenfield, Beech
Grove, Rushville, Southport, New Whiteland, Cumberland, Edinburgh,
Whiteland, Bargersville, Knightstown, New Palestine, Flat Rock,
Princes Lakes, Geneva, Morristown, and Trafalgar.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

Torrential rainfall is also occurring with these storms will cause
dangerous flash flooding. Do not drive your vehicle through flooded
roadways.

A Severe Thunderstorm Watch remains in effect until 500 PM EDT for
central, south central and east central Indiana.

&&

LAT...LON 3935 8563 3934 8625 3963 8625 3979 8593
      3979 8530 3954 8530
TIME...MOT...LOC 1803Z 274DEG 49KT 3979 8576 3962 8611 3955 8627

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

BRB

Special Weather Statement
National Weather Service Indianapolis IN
209 PM EDT Wed Aug 12 2026

INZ045-051>054-060-061-121845-
Clay IN-Owen IN-Morgan IN-Putnam IN-Greene IN-Vigo IN-Sullivan IN-
209 PM EDT Wed Aug 12 2026

...Strong thunderstorms will impact portions of southern Vigo,
northwestern Morgan, Sullivan, Clay, northwestern Owen, northwestern
Greene and southern Putnam Counties through 245 PM EDT...

At 208 PM EDT, Doppler radar was tracking strong thunderstorms along
a line extending from Brazil to 11 miles south of Terre Haute to near
Hutsonville. Movement was east at 35 mph.

HAZARD...Wind gusts up to 50 mph, frequent lightning, very heavy
         rain, and half inch hail.

SOURCE...Radar indicated.

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

Locations impacted include...
Terre Haute, Brazil, Sullivan, Jasonville, Cloverdale, Shelburn,
Prairieton, Prairie Creek, Farmersburg, Seelyville, Knightsville,
Clay City, Hymera, Fairbanks, Harmony, Staunton, Center Point, Merom,
Riley, and Quincy.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

Torrential rainfall is also occurring with these storms and may lead
to flash flooding. Do not drive your vehicle through flooded
roadways.

A Severe Thunderstorm Watch remains in effect until 500 PM EDT for
central, southwestern and west central Indiana.

&&

LAT...LON 3917 8764 3922 8757 3925 8757 3925 8760
      3930 8760 3930 8762 3934 8759 3934 8756
      3937 8753 3961 8707 3960 8655 3929 8689
      3897 8745 3903 8757 3906 8757 3909 8762
      3910 8761 3911 8765 3912 8763 3913 8766
TIME...MOT...LOC 1808Z 271DEG 30KT 3952 8712 3931 8739 3916 8761

MAX HAIL SIZE...0.50 IN
MAX WIND GUST...50 MPH

BRB

Special Weather Statement
National Weather Service Indianapolis IN
230 PM EDT Wed Aug 12 2026

INZ054>056-063>065-071-121900-
Johnson IN-Brown IN-Morgan IN-Decatur IN-Bartholomew IN-Shelby IN-
Jackson IN-
230 PM EDT Wed Aug 12 2026

...Strong thunderstorms will impact portions of southern Shelby,
southeastern Morgan, southern Decatur, northeastern Brown, southern
Johnson, Bartholomew and northeastern Jackson Counties through 300 PM
EDT...

At 229 PM EDT, Doppler radar was tracking strong thunderstorms along
a line extending from 8 miles southwest of Shelbyville to 10 miles
north of Nashville. Movement was southeast at 45 mph.

HAZARD...Wind gusts up to 50 mph and very heavy rain.

SOURCE...Radar indicated.

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

Locations impacted include...
Columbus, Greensburg, Nashville, Edinburgh, Hope, Flat Rock, Milford,
Westport, Princes Lakes, Trafalgar, Morgantown, Elizabethtown,
Hartsville, Clifford, Jonesville, Millhousen, Peoga, Newbern,
Beanblossom, and Gnaw Bone.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

Torrential rainfall is also occurring with these storms could cause
flash flooding for portions of the area. Do not drive your vehicle
through flooded roadways.

A Severe Thunderstorm Watch remains in effect until 500 PM EDT for
central, south central and southeastern Indiana.

&&

LAT...LON 3917 8549 3913 8561 3913 8580 3906 8580
      3899 8602 3932 8638 3934 8638 3934 8640
      3945 8601 3928 8530 3927 8530
TIME...MOT...LOC 1829Z 292DEG 39KT 3943 8586 3935 8624

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

BRB

Preliminary Local Storm Report
National Weather Service Indianapolis IN
247 PM EDT Wed Aug 12 2026

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

0146 PM     Rain             4 SW Westfield          40.01N 86.18W
08/12/2026  M1.26 Inch       Hamilton           IN   Trained Spotter

            Amount from 1230 PM to 140 PM EDT.

&&

BH

Preliminary Local Storm Report
National Weather Service Indianapolis IN
251 PM EDT Wed Aug 12 2026

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

1100 AM     Flash Flood      Muncie                  40.20N 85.39W
08/12/2026                   Delaware           IN   Public

            Water is above the curb and over the
            sidewalk in a residential neighborhood on
            the south side of the street. Water is
            encroaching on homes.

&&

BH

Preliminary Local Storm Report
National Weather Service Indianapolis IN
253 PM EDT Wed Aug 12 2026

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

1153 AM     Flash Flood      1 NW New Castle         39.93N 85.38W
08/12/2026                   Henry              IN   Public

            Flooding at Kroger, a gas station, and road
            intersections.

&&

BH