Alert archive / Indiana / Flash Flood Warnings in 2026
Flash Flood Warning 18, NWS Indianapolis, IN
NWS Indianapolis, IN issued this flash flood warning at Jun 21, 2026, 8:28 PM EDT for Brown County, Jackson County, Monroe County, 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 21, 2026, 8:28 PM EDT (00:28 UTC)
- Expired
- Jun 22, 2026, 12:00 AM EDT
- In force
- 4 hr
- Issued by
- NWS Indianapolis, IN
- Area
- Storm-based polygon
- Flood severity
- None
Counties Brown County, IN, Jackson County, IN, Monroe County, IN
The radar
The Indianapolis radar (KIND), 68 km from the middle of the area, began a volume at 00:31 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.
Did it verify
Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this flash flood warning while it was in force. That is not proof nothing happened: reports are thin where few people live.
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
Cncnati-Daytn, OH (KILN), launched 00:00Z, 0.5 hours before the alert went out and 224 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.
- Mixed-layer CAPE
- 5 J/kg
- Mixed-layer CIN
- -116 J/kg
- Mixed-layer LCL
- 1335 m above ground
- 0-6 km bulk shear
- 61 kt
- 0-1 km storm-relative helicity
- 87 m²/s²
- 0-3 km storm-relative helicity
- 195 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
600
WGUS53 KIND 220028
FFWIND
INC013-071-105-220400-
/O.NEW.KIND.FF.W.0018.260622T0028Z-260622T0400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Indianapolis IN
828 PM EDT Sun Jun 21 2026
The National Weather Service in Indianapolis has issued a
* Flash Flood Warning for...
Southern Brown County in south central Indiana...
Northwestern Jackson County in south central Indiana...
Southeastern Monroe County in south central Indiana...
* Until midnight EDT tonight.
* At 828 PM EDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Between 0.5 and 3 inches of
rain have fallen. Additional rainfall amounts of 0.5 to 2.5 inches
are possible in the warned area. Flash flooding is already
occurring.
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...
Bloomington, Nashville, Elkinsville, Story, Charles Deam
Wilderness, Yellowwood Lake, Woodville Hills, Stone Head,
Spurgeons Corner, Gnaw Bone, Monroe Reservoir and Fairfax State
Recreation Area.
This includes the following streams and drainages...
South Fork Creek, Lick Creek, Stephens Creek, Strahl Creek, Middle
Fork Salt Creek, Negro Creek, Pruitt Branch, Little Salt Creek,
Buck Creek, Combs Creek, Crooked Creek, Pleasant Valley Creek,
South Fork Salt Creek, Salt Creek, Kiper Creek, Clay Lick Creek,
Jackson Creek, Green Valley Creek, Kerr Creek, North Fork Salt
Creek, Hamilton Creek, Callahan Branch, Brannaman Branch, Gravel
Creek, East Fork Salt Creek, Mount Liberty Creek, Gnaw Bone Creek
and White Creek.
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 3916 8650 3924 8608 3899 8608 3899 8654
3907 8649
FLASH FLOOD...RADAR INDICATED
$$
AGMWhat 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 Jun 21, 8:09 PM EDT, 19 minutes earlier. Its 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
Area forecast discussion, Jun 21, 8:09 PM EDT, 19 minutes before
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, Jun 21, 4:36 PM EDT, 3 hours 52 minutes before
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
In the hours before
Local storm report, Jun 21, 6:24 PM EDT, 2 hours 4 minutes before
Preliminary Local Storm Report
National Weather Service Indianapolis IN
624 PM EDT Sun Jun 21 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0619 PM Tstm Wnd Gst Sullivan 39.10N 87.41W
06/21/2026 E70 MPH Sullivan IN Amateur Radio
&&
BHLocal storm report, Jun 21, 6:57 PM EDT, 1 hour 31 minutes before
Preliminary Local Storm Report
National Weather Service Indianapolis IN
657 PM EDT Sun Jun 21 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0650 PM Tstm Wnd Dmg 3 W Hymera 39.19N 87.35W
06/21/2026 Sullivan IN Amateur Radio
Law enforcement in Sullivan County reports
many trees and power lines are
down...multiple vehicles damaged and several
houses damaged.
&&
BHLocal storm report, Jun 21, 6:58 PM EDT, 1 hour 30 minutes before
Preliminary Local Storm Report
National Weather Service Indianapolis IN
658 PM EDT Sun Jun 21 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0654 PM Funnel Cloud Patricksburg 39.31N 86.96W
06/21/2026 Owen IN Trained Spotter
Located northwest of the elementary school.
&&
BHLocal storm report, Jun 21, 7:07 PM EDT, 1 hour 21 minutes before
Preliminary Local Storm Report
National Weather Service Indianapolis IN
707 PM EDT Sun Jun 21 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0705 PM Tstm Wnd Gst 1 W Greencastle 39.64N 86.86W
06/21/2026 M70 MPH Putnam IN Public
&&
BHLocal storm report, Jun 21, 7:41 PM EDT, 47 minutes before
Preliminary Local Storm Report
National Weather Service Indianapolis IN
741 PM EDT Sun Jun 21 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0735 PM Funnel Cloud Vincennes 38.68N 87.51W
06/21/2026 Knox IN Public
Time is approximate. Cloud dissipated during
the call to NWS.
&&
BHLocal storm report, Jun 21, 8:07 PM EDT, 21 minutes before
Preliminary Local Storm Report
National Weather Service Indianapolis IN
807 PM EDT Sun Jun 21 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0802 PM Rain 1 SE Terre Haute 39.46N 87.37W
06/21/2026 M1.90 Inch Vigo IN Public
&&
BHThe office that day
Everything else NWS Indianapolis, IN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 21, 8:09 PM EDT | Flash Flood Warning | IND | Greene, Monroe | 3 hr |
| Jun 21, 8:09 PM EDT | Severe Thunderstorm Warning | IND | Daviess, Knox, Martin | 66 min |
| Jun 21, 8:14 PM EDT | Tornado Warning | IND | Bartholomew, Decatur, Shelby | 24 min |
| Jun 21, 8:21 PM EDT | Flash Flood Warning | IND | Daviess, Knox, Martin | 3 hr |
| Jun 21, 8:25 PM EDT | Severe Thunderstorm Warning | IND | Bartholomew, Decatur, Jennings, Rush, Shelby | 50 min |
| Jun 21, 8:27 PM EDT | Severe Thunderstorm Warning | IND | Jackson, Lawrence | 48 min |
| Jun 21, 8:35 PM EDT | Tornado Warning | IND | Decatur | 25 min |
| Jun 21, 8:42 PM EDT | Areal Flood Advisory | IND | Bartholomew, Jackson, Jennings | 3 hr |
| Jun 21, 8:57 PM EDT | Areal Flood Advisory | IND | Daviess, Lawrence, Martin | 3 hr |
| Jun 21, 9:04 PM EDT | Tornado Warning | IND | Martin | 21 min |
| Jun 21, 9:09 PM EDT | Flash Flood Warning | IND | Bartholomew | 3 hr |
| Jun 21, 9:17 PM EDT | Flash Flood Warning | IND | Daviess, Lawrence, Martin | 4 hr |
| Jun 21, 9:32 PM EDT | Severe Thunderstorm Warning | IND | Jennings | 28 min |
| Jun 21, 9:59 PM EDT | Areal Flood Warning | IND | Knox | 2 hr |
| Jun 21, 10:06 PM EDT | River Flood Warning | IND | Daviess, Greene, Knox | 4 days |
| Jun 21, 10:06 PM EDT | River Flood Warning | IND | Daviess, Gibson, Knox, Pike | 47 hr |
| Jun 21, 10:06 PM EDT | River Flood Warning | IND | Gibson, Knox, Posey | 10 days |
| Jun 21, 10:34 PM EDT | Areal Flood Advisory | IND | Jennings | 12 hr |
| Jun 21, 10:56 PM EDT | Flash Flood Warning | IND | Daviess, Knox, Martin | 64 min |
| Jun 21, 11:47 PM EDT | Flash Flood Warning | IND | Daviess, Martin | 5 hr |
| Jun 21, 11:58 PM EDT | Areal Flood Warning | IND | Bartholomew | 11 hr |
| Jun 22, 12:00 AM EDT | Areal Flood Warning | IND | Knox | 11 hr |
| Jun 22, 12:57 AM EDT | Areal Flood Warning | IND | Martin | 4 hr |
| Jun 22, 4:50 AM EDT | Areal Flood Warning | IND | Daviess, Martin | 6 hr |
| Jun 22, 9:39 AM EDT | River Flood Warning | IND | Jackson, Lawrence, Washington | 21 hr |
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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.