Alert archive / Indiana / Flash Flood Warnings in 2026
Flash Flood Warning 31, NWS Indianapolis, IN
NWS Indianapolis, IN issued this flash flood warning at Aug 1, 2026, 5:32 PM EDT for Marion County, Indiana. It was in force for 3 hr. 18 reports 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 1, 2026, 5:32 PM EDT (21:32 UTC)
- Expired
- Aug 1, 2026, 8:19 PM EDT
- In force
- 3 hr
- Issued by
- NWS Indianapolis, IN
- Area
- Storm-based polygon
- Flood severity
- None
County Marion County, IN
The radar
The Indianapolis radar (KIND), 9 km from the middle of the area, began a volume at 21:35 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
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 1, 5:51 PM EDT | FLOOD | 1 Sw Beech Grove, IN | High water on parts of the interstates including Interstate 65 north bound near Interstate 465..traffic able to get through. |
| Aug 1, 5:53 PM EDT | RAIN 2.21 | Homecroft, IN | Amount in the last 2 hours. Amount since midnight...2.84 inches. |
| Aug 1, 5:55 PM EDT | FLOOD | 1 Sse Monument Circle, IN | 511in.org report of flooding in both directions on Interstate 70. |
| Aug 1, 6:00 PM EDT | RAIN 1.05 | 1 E Nora, IN | Amount in the past 60 minutes. Minor flooding. |
| Aug 1, 6:00 PM EDT | RAIN 3.66 | 3 S Monument Circle, IN | Amount in the past 10 hours. |
| Aug 1, 6:06 PM EDT | RAIN 2.66 | Speedway, IN | |
| Aug 1, 6:13 PM EDT | FLOOD | 2 Ne Warren Park, IN | Flooding is exiting the street and flowing onto the sidewalks. Report relayed by AccuWeather from a citizen. |
| Aug 1, 6:30 PM EDT | FLASH FLOOD | 2 Ne Warren Park, IN | Exit ramp closed due to flooding I-465 and I-70. Time approximate. |
| Aug 1, 7:00 PM EDT | RAIN 1.92 | 1 Sse Eagle Creek Reser, IN | |
| Aug 1, 7:00 PM EDT | RAIN 2.04 | Indianapolis Int'L Airp, IN | |
| Aug 1, 7:00 PM EDT | RAIN 2.39 | 1 Ese Speedway, IN | Mesonet station SPEI3 1.1 E Speedway. |
| Aug 1, 7:10 PM EDT | RAIN 1.84 | 2 S Castleton, IN | Total for the day. |
| Aug 1, 7:10 PM EDT | RAIN 2.68 | Broad Ripple, IN | Bishop Chatard High School weather system reported this amount for the day so far. |
| Aug 1, 7:17 PM EDT | RAIN 3.9 | 1 E Indianapolis, IN | Amount of rain in about 2 hours time. |
| Aug 1, 7:50 PM EDT | RAIN 1.71 | 1 S Broad Ripple, IN | Rainfall amount from 4 PM until 750 PM. |
| Aug 1, 8:00 PM EDT | RAIN 1.45 | 1 Wnw Broad Ripple, IN | Mesonet station BRDI3 White River. |
| Aug 1, 8:03 PM EDT | RAIN 1.72 | 1 Se Clermont, IN | Mesonet station INDCC 1 SE Clermont. |
| Aug 1, 8:04 PM EDT | RAIN 2.76 | 1 W Monument Circle, IN | Mesonet station INZOO 1 W Monument Circle. |
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 58 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
Cncnati-Daytn, OH (KILN), launched 12:00Z, 9.5 hours before the alert went out and 208 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
- 24 J/kg
- Mixed-layer CIN
- -119 J/kg
- Mixed-layer LCL
- 1105 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- 75 m²/s²
- 0-3 km storm-relative helicity
- 119 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
217
WGUS53 KIND 012132
FFWIND
INC097-020030-
/O.NEW.KIND.FF.W.0031.260801T2132Z-260802T0030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Indianapolis IN
532 PM EDT Sat Aug 1 2026
The National Weather Service in Indianapolis has issued a
* Flash Flood Warning for...
Marion County in central Indiana...
* Until 830 PM EDT.
* At 532 PM EDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Up to 2 inches of rain have
fallen. Additional rainfall amounts up to 2 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...
Indianapolis, Carmel, Fishers, Greenwood, Lawrence, Plainfield,
Beech Grove, Speedway, Southport, Avon, Cumberland, Meridian
Hills, Warren Park, Clermont, Homecroft, Rocky Ripple, Williams
Creek, Wynnedale, Spring Hill and Crows Nest.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
LAT...LON 3968 8633 3992 8633 3993 8596 3964 8595
3963 8626
FLASH FLOOD...RADAR INDICATED
$$
502 follow-up statements
719
WGUS73 KIND 012322
FFSIND
Flash Flood Statement
National Weather Service Indianapolis IN
722 PM EDT Sat Aug 1 2026
INC097-020030-
/O.CON.KIND.FF.W.0031.000000T0000Z-260802T0030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Marion IN-
722 PM EDT Sat Aug 1 2026
...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 830 PM EDT THIS
EVENING FOR MARION COUNTY...
At 722 PM EDT, Doppler radar indicated thunderstorms producing heavy
rain across the warned area. Up to 4 inches of rain have fallen.
Flash flooding is ongoing.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Radar.
IMPACT...Flash flooding of small creeks and streams, urban areas,
highways, streets and underpasses as well as other poor
drainage and low-lying areas.
Some locations that will experience flash flooding include...
Indianapolis, Carmel, Fishers, Greenwood, Lawrence, Plainfield,
Beech Grove, Speedway, Southport, Avon, Cumberland, Meridian
Hills, Warren Park, Clermont, Homecroft, Rocky Ripple, Williams
Creek, Wynnedale, Spring Hill and Crows Nest.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Be aware of your surroundings and do not drive on flooded roads.
&&
LAT...LON 3968 8633 3992 8633 3993 8596 3964 8595
3963 8626
FLASH FLOOD...RADAR INDICATED
$$
50004
WGUS73 KIND 020019
FFSIND
Flash Flood Statement
National Weather Service Indianapolis IN
819 PM EDT Sat Aug 1 2026
INC097-020029-
/O.CAN.KIND.FF.W.0031.000000T0000Z-260802T0030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Marion IN-
819 PM EDT Sat Aug 1 2026
...FLASH FLOOD WARNING FOR MARION COUNTY HAS BEEN REPLACED WITH A
FLOOD WARNING...
&&
LAT...LON 3968 8633 3992 8633 3993 8596 3964 8595
3963 8626
$$
50What 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 1, 2:26 PM EDT, 3 hours 6 minutes earlier. Its key messages:
- Numerous showers and scattered thunderstorms expected at times this afternoon into tonight
- Flood Watch in effect through 8 AM EDT Sunday for much of central IN; Rainfall amounts of 1 to 3 inches are possible with locally higher amounts
- Isolated severe t-storms are possible with damaging wind gusts and an isolated tornado threat, mainly over E/SE central Indiana
- Rain chances will persist through the weekend with additional chances at times next week
Area forecast discussion, Aug 1, 2:26 PM EDT, 3 hours 6 minutes before
Area Forecast Discussion National Weather Service Indianapolis IN 226 PM EDT Sat Aug 1 2026 .KEY MESSAGES... - Numerous showers and scattered thunderstorms expected at times this afternoon into tonight - Flood Watch in effect through 8 AM EDT Sunday for much of central IN; Rainfall amounts of 1 to 3 inches are possible with locally higher amounts - Isolated severe t-storms are possible with damaging wind gusts and an isolated tornado threat, mainly over E/SE central Indiana - Rain chances will persist through the weekend with additional chances at times next week && .DISCUSSION (This evening through Saturday)... Issued at 147 PM EDT Sat Aug 1 2026 This afternoon through tonight... Current KIND radar imagery depicts increasing coverage of showers across central IN after a brief lull in precipitation.Increasing large scale ascent from an approaching mid-upper level vort max centered over IL combined with low-level theta-e advection ahead of an associated low pressure system will continue to promote additional convective development. Expect widespread showers this afternoon along with scattered thunderstorms once sufficient destabilization occurs. Efficient rainfall rates and repeated rounds of showers/storms from the slow moving system could result in localized flash flooding through daybreak Sunday. An associated warm front lifting north is expected to stall near or just north of the I-70 corridor into the evening hours which may also increase the threat for flooding as slow moving storms could train over the same areas. A FLOOD WATCH is now in effect for much of the forecast area through 8 AM EDT Sunday with rainfall amounts of 1 to 3 inches expected. Locally higher amounts of 4+ inches are possible. Modest to moderate destabilization later this afternoon combined with sufficient effective wind shear supports the threat for isolated severe thunderstorms, mainly for E/SE portions of central Indiana. Forecast soundings depict gradually steepening lapse rates and mid-level dry air contributing to DCAPE values around 900 to 1100 J/KG which may result in isolated damaging wind gusts. Low- level veering hodographs from the warm front lifting north could also promote an isolated tornado threat. Some uncertainty still remains regarding the overall severe threat. Mesoscale details such as how far north the warm front moves and the degree of destabilization or low-level buoyancy later this afternoon will ultimately determine the severe weather risk. The flooding threat is the greatest concern, but isolated severe weather remains possible over mainly E/SE portions of central Indiana. If any severe weather occurs it would likely be from around 2 to 9PM EDT before instability weakens. Sunday through Monday... The aforementioned low pressure system is expected to still be over the area on Sunday as it slowly crawls southeastward. Broad cyclonic flow and lingering moisture will promote scattered or numerous showers. A low flooding threat may linger into Sunday, but very limited instability and weaker forcing should lead to lower rainfall rates. Look for coverage of showers to decrease late in the day into Sunday night with the system gradually departing. Surface high pressure building in Monday will provide mostly quiet weather. However, lingering moisture and daytime heating may support isolated showers or a stray storm across far southeastern counties late in the day. Tuesday onward... Long range guidance generally shows the aforementioned system becoming cutoff once again and retrograding towards the Ohio Valley Tuesday into Wednesday. Deeper moisture advecting back into the southeast half of central Indiana along with weak dynamics from the system and diurnal heating keeps low chances for precipitation in the forecast, mainly during the afternoon or evening. Multiple embedded shortwaves traversing the region Thursday through end of the week will promote additional convective chances. Exact details remain uncertain at this time due to diverging model solutions. && .AVIATION (18Z TAF Issuance)... Issued at 225 PM EDT Sat Aug 1 2026 Impacts: - At most, MVFR ceilings through period, down to IFR and even LIFR at times tonight into the morning hours - SHRA much of the time, with isolated TSRA possible Discussion: Low Pressure over Illinois will advance to Indiana during this period, with bands of showers pivoting around the low are expected to pass through the day. Ceilings are expected to be MVFR at most through the period with IFR to LIFR possible at times mainly within the rain bands and late tonight into tomorrow morning. Isolated TSRA will be possible at times with best chances this afternoon. Winds will be shifting through the period as well around the low, with calm to light and variable as the low moves overhead, mainly moving across the south. && .IND WATCHES/WARNINGS/ADVISORIES... Flood Watch through Sunday morning for INZ021-028>031-035>049- 051>057-062>065. && AVIATION...KF DISCUSSION...Melo
Hazardous weather outlook, Aug 1, 1:54 PM EDT, 3 hours 38 minutes before
Hazardous Weather Outlook National Weather Service Indianapolis IN 154 PM EDT Sat Aug 1 2026 INZ021-028>031-035>049-051>057-060>065-067>072-021800- 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- 154 PM EDT Sat Aug 1 2026 This hazardous weather outlook is for central Indiana. .DAY ONE...Through Tonight. Numerous showers and scattered thunderstorms are expected at times. A Flood Watch is in effect for much of central Indiana through 8 AM EDT Sunday with the potential for localized flooding. Isolated severe thunderstorms are also possible with the potential for damaging wind gusts and an isolated tornado, mainly across east/southeast portions of central Indiana. .DAYS TWO THROUGH SEVEN...Sunday through Friday. Thunderstorms are possible at times Sunday. Storms will be capable of producing locally heavy rain. Additional showers and thunderstorms possible at times next week. .SPOTTER INFORMATION STATEMENT... Spotter activation may be needed south of the I-70 corridor this afternoon and evening. && 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 1, 4:05 PM EDT, 1 hour 27 minutes before
Preliminary Local Storm Report
National Weather Service Indianapolis IN
405 PM EDT Sat Aug 1 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0354 PM Tstm Wnd Dmg Nashville 39.21N 86.24W
08/01/2026 Brown IN Amateur Radio
Estimated 40 plus mph wind gusts. Small
branches and limbs down.
&&
BHSpecial weather statement, Aug 1, 4:36 PM EDT, 56 minutes before
Special Weather Statement
National Weather Service Indianapolis IN
436 PM EDT Sat Aug 1 2026
INZ056-057-065-012115-
Rush IN-Decatur IN-Shelby IN-
436 PM EDT Sat Aug 1 2026
...A strong thunderstorm will impact portions of eastern Shelby,
southwestern Rush and northwestern Decatur Counties through 515 PM
EDT...
At 436 PM EDT, Doppler radar was tracking a strong thunderstorm 10
miles south of Shelbyville, moving northeast at 30 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...
Shelbyville, Geneva, Morristown, St. Paul, Milroy, Manilla, Waldron,
and Moscow.
This includes Interstate 74 between mile markers 114 and 126.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 3935 8568 3943 8581 3967 8570 3953 8542
TIME...MOT...LOC 2036Z 209DEG 25KT 3938 8574
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...50 MPH
GMLocal storm report, Aug 1, 4:41 PM EDT, 51 minutes before
Preliminary Local Storm Report
National Weather Service Indianapolis IN
441 PM EDT Sat Aug 1 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0437 PM Rain Edinburgh 39.35N 85.97W
08/01/2026 M2.25 Inch Johnson IN Trained Spotter
Amount in one hour. An additional 1.00 fell
since last night.
&&
BHLocal storm report, Aug 1, 5:09 PM EDT, 23 minutes before
Preliminary Local Storm Report
National Weather Service Indianapolis IN
509 PM EDT Sat Aug 1 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0505 PM Rain Edinburgh 39.35N 85.97W
08/01/2026 M3.71 Inch Johnson IN Trained Spotter
Total in past 1.5 hours. Total for the day
is now 4.67 inches.
&&
BHLocal storm report, Aug 1, 5:15 PM EDT, 17 minutes before
Preliminary Local Storm Report
National Weather Service Indianapolis IN
515 PM EDT Sat Aug 1 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0511 PM Flood 1 SW Shelbyville 39.51N 85.78W
08/01/2026 Shelby IN Public
Torrential rains...causing standing water
with heavy currents and flow. Vehicles
needing to change direction.
&&
BHSpecial weather statement, Aug 1, 5:21 PM EDT, 11 minutes before
Special Weather Statement
National Weather Service Indianapolis IN
521 PM EDT Sat Aug 1 2026
INZ056-057-065-012215-
Rush IN-Decatur IN-Shelby IN-
521 PM EDT Sat Aug 1 2026
...Strong thunderstorms will impact portions of eastern Shelby, Rush
and Decatur Counties through 615 PM EDT...
At 521 PM EDT, Doppler radar was tracking strong thunderstorms along
a line extending from 6 miles southwest of Rushville to 10 miles
north of North Vernon. Movement was northeast at 20 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...
Greensburg, Rushville, Adams, Milford, St. Paul, Milroy, Glenwood,
Millhousen, Clarksburg, Letts, Burney, Waldron, Moscow, Newpoint, New
Salem, Manilla, Sandusky, Lake Santee, and Arlington.
This includes Interstate 74 between mile markers 120 and 144.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 3919 8545 3919 8565 3963 8570 3975 8530
3927 8530
TIME...MOT...LOC 2121Z 245DEG 18KT 3958 8556 3915 8567
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH
GMThe office that day
Everything else NWS Indianapolis, IN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 1, 11:38 AM EDT | Flood Watch | IND | Bartholomew, Boone, Brown, Carroll, Clay, Clinton and 25 more | 14 hr |
| Aug 1, 2:25 PM EDT | Special Weather Statement | IND | Monroe | 50 min |
| Aug 1, 2:36 PM EDT | Special Weather Statement | IND | Morgan | 24 min |
| Aug 1, 2:51 PM EDT | Tornado Warning | IND | Morgan | 39 min |
| Aug 1, 3:19 PM EDT | Areal Flood Advisory | IND | Brown, Hendricks, Jackson, Johnson, Lawrence, Marion and 4 more | 6 hr |
| Aug 1, 3:31 PM EDT | Special Weather Statement | IND | Hendricks | 29 min |
| Aug 1, 4:04 PM EDT | Special Weather Statement | IND | Bartholomew | 41 min |
| Aug 1, 4:30 PM EDT | Areal Flood Advisory | IND | Boone, Hendricks, Montgomery, Parke, Putnam, Tippecanoe | 6 hr |
| Aug 1, 4:33 PM EDT | Areal Flood Warning | IND | Bartholomew, Brown, Johnson, Shelby | 12 hr |
| Aug 1, 4:36 PM EDT | Special Weather Statement | IND | Shelby | 39 min |
| Aug 1, 4:49 PM EDT | Areal Flood Warning | IND | Hendricks | 12 hr |
| Aug 1, 5:01 PM EDT | Areal Flood Advisory | IND | Marion | 3 hr |
| Aug 1, 5:11 PM EDT | Areal Flood Warning | IND | Bartholomew, Decatur, Johnson, Shelby | 12 hr |
| Aug 1, 5:21 PM EDT | Special Weather Statement | IND | Decatur, Rush | 54 min |
| Aug 1, 5:23 PM EDT | Tornado Warning | IND | Marion | 21 min |
| Aug 1, 5:42 PM EDT | Flash Flood Warning | IND | Shelby | 3 hr |
| Aug 1, 5:49 PM EDT | Special Weather Statement | IND | Hancock | 41 min |
| Aug 1, 5:52 PM EDT | Severe Thunderstorm Warning | IND | Hancock, Rush, Shelby | 25 min |
| Aug 1, 5:59 PM EDT | Areal Flood Warning | IND | Bartholomew, Decatur, Rush, Shelby | 11 hr |
| Aug 1, 6:18 PM EDT | Areal Flood Warning | IND | Hancock, Henry, Marion, Rush, Shelby | 11 hr |
| Aug 1, 6:26 PM EDT | Areal Flood Warning | IND | Tippecanoe, Warren | 11 hr |
| Aug 1, 6:29 PM EDT | Special Weather Statement | IND | Hancock, Henry | 46 min |
| Aug 1, 7:06 PM EDT | Areal Flood Warning | IND | Henry | 10 hr |
| Aug 1, 7:49 PM EDT | Areal Flood Warning | IND | Delaware, Madison, Randolph | 9 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.