Flash Flood Warning 22, NWS Indianapolis, IN

006 
WGUS73 KIND 220459
FFSIND

Flash Flood Statement
National Weather Service Indianapolis IN
1259 AM EDT Mon Jun 22 2026

INC101-220509-
/O.CAN.KIND.FF.W.0022.000000T0000Z-260622T0900Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Martin IN-
1259 AM EDT Mon Jun 22 2026

...FLASH FLOOD WARNING IS CANCELLED FOR WEST CENTRAL MARTIN COUNTY...

Flooding is no longer expected to pose a threat. Please continue to 
heed remaining road closures.

A Flood Watch remains in effect until 800 AM EDT Monday for portions 
of central, south central, southeast, southwest, and west central 
Indiana.

&&

LAT...LON 3874 8724 3876 8725 3877 8724 3877 8726
      3878 8724 3882 8724 3880 8723 3882 8721
      3883 8720 3882 8719 3883 8719 3884 8715
      3889 8711 3890 8712 3890 8691 3860 8692
      3863 8724 3868 8725 3869 8728

$$

INC027-220900-
/O.CON.KIND.FF.W.0022.000000T0000Z-260622T0900Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Daviess IN-
1259 AM EDT Mon Jun 22 2026

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 5 AM EDT EARLY THIS 
MORNING FOR DAVIESS COUNTY...

At 1259 AM EDT, emergency management reported thunderstorms 
producing heavy rain across the warned area. Up to 6 inches of rain 
have fallen. Additional rainfall amounts up to 0.5 inches are 
possible in the warned area. Flash flooding is already occurring.

HAZARD...Flash flooding caused by thunderstorms.

SOURCE...Emergency management 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...
  Washington, Loogootee, Odon, Elnora, Plainville, Montgomery, 
  Cannelburg and West Boggs Lake.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Be aware of your surroundings and do not drive on flooded roads.

&&

LAT...LON 3874 8724 3876 8725 3877 8724 3877 8726
      3878 8724 3882 8724 3880 8723 3882 8721
      3883 8720 3882 8719 3883 8719 3884 8715
      3889 8711 3890 8712 3890 8691 3860 8692
      3863 8724 3868 8725 3869 8728

FLASH FLOOD...OBSERVED

$$

AGM

Area Forecast Discussion
National Weather Service Indianapolis IN
809 PM EDT Sun Jun 21 2026

.KEY MESSAGES...

- Heavy rain and severe storms are possible this afternoon into
  early Monday

- Flooding threat for both river/non-river will increase through the
  early week from heavy rainfall on damp/saturated soils

- Temperatures will trend from slightly below normal to near normal
  through Saturday...trend to very warm/humid late in period

&&

.DISCUSSION (This evening through Sunday)...
Issued at 302 PM EDT Sun Jun 21 2026

This afternoon through Monday...

Quiet weather conditions continue across central Indiana at this
time ahead of an approaching MCS with an associated MCV. Look for
this system to continue pushing eastward supporting widespread
showers and thunderstorms towards this evening. Increasing clouds
has limited destabilization to some degree, but moisture advection
and daytime heating is allowing for gradual destabilization this
afternoon. Deep-layer and low-level shear will also increase over
the next several hours with the approaching disturbance promoting
stronger flow. Favorable effective shear values around 30-50 kt
combined with modest instability supports the potential for
organized storms with all hazards possible.

Latest model guidance still depicts enlarging low-level hodographs
across portions of central IN favoring an isolated tornado threat.
The greatest tornado threat is across southwest portions of central
Indiana where the greatest instability and low-level wind shear
overlap. Some uncertainty remains on storm mode at least initially.
There does appear to be at least a brief opportunity for discrete
cells later this afternoon into the early evening before multiple
linear segments then develop leading to a greater damaging wind gust
threat with embedded tornadoes possible. Isolated large hail cannot
be ruled out, but modest instability and linear storm mode by the
evening hours should mostly limit this threat.

A Flood Watch is in effect through 8 AM Monday morning for much of
central IN with the potential for 1 to 3 inches of rainfall from
multiple rounds of storms. Locally higher amounts cannot be ruled
out. Expect precipitation chances to diminish late tonight into
Monday morning as the aforementioned disturbance shifts east.
Surface high pressure will then build in providing quiet weather for
much of the day Monday. Isolated showers are possible across east-
central IN through the first half of the day. Lingering clouds and
northerly surface flow will keep temperatures cooler. Look for highs
in the 70s.

Monday night through Sunday...

Generally active pattern will continue this week amid overall zonal
pattern.  Established trough over northern North America that has
been guiding mid-latitude pattern...will shift from south-central
Canada to more pronounced, perhaps cut-off upper lows over SW Canada
to the northern Rockies late this week.  This transition will allow
a subtropical ridge to build over the central US, bringing
seasonably warm and humid conditions into Indiana next weekend.

The next round of broad and seasonably weak Canadian surface high
pressure will pass through Indiana Monday night to Tuesday night,
dropping dewpoints to the mainly low to mid-50s at night, and light
northerly breezes under H850 temperatures as low as 10 degrees
Celsius during the day Tuesday.  Transition back to more summery
weather Wednesday with light southwest flow returning moderate
humidity ahead of next wave...which should bring periods of
scattered RWs/few TRWs through the Wednesday night-Thursday night
period as the disturbance's boundary slowly crosses the region.

Expect a shorter period of improvement around the Friday timeframe
as western trough deepens near Vancouver...only allowing next
northern surface ridge to graze the CWA, with isolated diurnal
convective chances continuing...and increasing through Saturday as
light southerly flow boosts humidity through moderate to high levels.
Temperatures through the workweek to see subtle increase in
afternoon maximums from around 80F to low 80s, although mid-80s
should be more common along the US-50 corridor...while morning lows
steadily climb from 50s to 65-70F by week's end.

&&

.AVIATION (00Z TAF Issuance)...
Issued at 809 PM EDT Sun Jun 21 2026

Impacts:

- Thunderstorms ongoing at the beginning of the TAF period with
lowered ceilings and visibilities
- Rain and isolated thunderstorms to continue through around 12Z
- MVFR to IFR ceilings to persist from early morning through much of
tomorrow
- Winds shifting from SE to W to N through the period

Discussion:

Ongoing thunderstorms at the start of the period with strongest
storms just exiting TAF sites as of 00-01Z. As these storms move off
to the east, expect visibilities to improve but MVFR to IFR ceilings
are expected to persist through much of the day tomorrow.

Winds will start out from the SE with gusts up to 20 kts outside of
thunderstorm wind gusts. Winds will shift to out of the SW by early
morning and eventually from the north as this storm system moves
through the region.

&&

.IND WATCHES/WARNINGS/ADVISORIES...
Flood Watch until 8 AM EDT Monday for INZ028>030-035>037-039-
043>048-051>057-060>065-067>072.

&&

AVIATION...KF
DISCUSSION...AGM/Melo

Hazardous Weather Outlook
National Weather Service Indianapolis IN
436 PM EDT Sun Jun 21 2026

INZ021-028>031-035>049-051>057-060>064-067>072-222045-
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-Knox-Daviess-Martin-
Lawrence-Jackson-Jennings-
436 PM EDT Sun Jun 21 2026

This hazardous weather outlook is for central Indiana.

.DAY ONE...Tonight.

Thunderstorms are expected this afternoon into tonight with some
severe storms possible, mainly from through 100 AM EDT. Damaging
winds and isolated tornadoes are the primary threats from the storms.

Lightning is also a threat with any thunderstorm.

In addition, moderate to heavy rainfall is expected this afternoon
into tonight which may lead to localized flooding and increase
current minor river flooding.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

Additional thunderstorms are possible Monday and again Wednesday
through Saturday.

.SPOTTER INFORMATION STATEMENT...

Spotters are encouraged to pass along flooding and severe weather
reports.

&&

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

INZ065-222045-
Decatur-
436 PM EDT Sun Jun 21 2026

This hazardous weather outlook is for central Indiana.

.DAY ONE...Tonight.

Residents living southwest of McCoy Lake are encouraged to closely
monitor conditions through tonight as releases from the dam are
planned.

Thunderstorms are expected this afternoon into tonight with some
severe storms possible, mainly from through 100 AM EDT. Damaging
winds and isolated tornadoes are the primary threats from the storms.

Lightning is also a threat with any thunderstorm.

In addition, moderate to heavy rainfall is expected this afternoon
into tonight which may lead to localized flooding and increase
current minor river flooding.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

Additional thunderstorms are possible Monday and again Wednesday
through Saturday.

.SPOTTER INFORMATION STATEMENT...

Spotters are encouraged to pass along flooding and severe weather
reports.

&&

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

Preliminary Local Storm Report
National Weather Service Indianapolis IN
1031 PM EDT Sun Jun 21 2026

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

0740 PM     Tstm Wnd Dmg     2 S Plainville          38.78N 87.16W
06/21/2026                   Daviess            IN   Public

            Several tree limbs snapped.

&&

BH

Preliminary Local Storm Report
National Weather Service Indianapolis IN
1032 PM EDT Sun Jun 21 2026

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

0755 PM     Tstm Wnd Dmg     1 W Spurgeons Corner    39.07N 86.16W
06/21/2026                   Brown              IN   Public

            Large tree branches snapped.

&&

BH

Preliminary Local Storm Report
National Weather Service Indianapolis IN
1033 PM EDT Sun Jun 21 2026

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

0911 PM     Flash Flood      2 N West Boggs Lake     38.76N 86.91W
06/21/2026                   Martin             IN   Public

            Water flowing over several roads.

&&

BH

Preliminary Local Storm Report
National Weather Service Indianapolis IN
1057 PM EDT Sun Jun 21 2026

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

0815 PM     Flash Flood      3 ENE Shelburn          39.19N 87.35W
06/21/2026                   Sullivan           IN   Public

            Cars stuck due to flooding.

&&

AW

Preliminary Local Storm Report
National Weather Service Indianapolis IN
1129 PM EDT Sun Jun 21 2026

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

0724 PM     Tstm Wnd Dmg     Vincennes               38.68N 87.51W
06/21/2026                   Knox               IN   Emergency Mngr

            Downed trees and utility lines scattered
            around Vincennes. Time is estimated from
            radar.

&&

BH

Preliminary Local Storm Report
National Weather Service Indianapolis IN
1132 PM EDT Sun Jun 21 2026

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

0709 PM     Tstm Wnd Dmg     Bicknell                38.78N 87.31W
06/21/2026                   Knox               IN   Emergency Mngr

            Scattered trees and utility lines down in
            and north of town. Time is estimated from
            radar.

&&

BH