Alert archive / Indiana / Flash Flood Warnings in 2026
Flash Flood Warning 87, NWS Indianapolis, IN
NWS Indianapolis, IN issued this flash flood warning at Aug 26, 2026, 9:02 PM EDT for 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
- Aug 26, 2026, 9:02 PM EDT (01:02 UTC)
- Expired
- Aug 27, 2026, 1:00 AM EDT
- In force
- 4 hr
- Issued by
- NWS Indianapolis, IN
- Area
- Storm-based polygon
- Flood severity
- None
County Monroe County, IN
The radar
The Indianapolis radar (KIND), 74 km from the middle of the area, began a volume at 01:03 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
Lincoln, IL (KILX), launched 00:00Z, 1.0 hours before the alert went out and 212 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
- 468 J/kg
- Mixed-layer CIN
- -12 J/kg
- Mixed-layer LCL
- 1437 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- 27 m²/s²
- 0-3 km storm-relative helicity
- 65 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.7
The text
As transmitted.
196
WGUS53 KIND 270102
FFWIND
INC105-270500-
/O.NEW.KIND.FF.W.0087.260827T0102Z-260827T0500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Indianapolis IN
902 PM EDT Wed Aug 26 2026
The National Weather Service in Indianapolis has issued a
* Flash Flood Warning for...
Southern Monroe County in south central Indiana...
* Until 100 AM EDT.
* At 902 PM EDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Between 1 and 2 inches of rain
have fallen. Additional rainfall amounts of 1 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 indicated.
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, Smithville, Indiana University, Harrodsburg, Fairfax
State Recreation Area, Whitehall, Monroe Reservoir and Woodville
Hills.
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 3899 8668 3920 8668 3920 8638 3899 8637
FLASH FLOOD...RADAR INDICATED
$$
NieldWhat 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 26, 2:16 PM EDT, 6 hours 46 minutes earlier. Its key messages:
- Scattered showers and storms, some severe, possible this evening.
- Dry weather returns for late week into the weekend.
- Hotter and more humid air arrives Sunday into early next week.
Area forecast discussion, Aug 26, 2:16 PM EDT, 6 hours 46 minutes before
Area Forecast Discussion National Weather Service Indianapolis IN 216 PM EDT Wed Aug 26 2026 .KEY MESSAGES... - Scattered showers and storms, some severe, possible this evening. - Dry weather returns for late week into the weekend. - Hotter and more humid air arrives Sunday into early next week. && .DISCUSSION (This evening through Wednesday)... Issued at 216 PM EDT Wed Aug 26 2026 Rest of This Afternoon and Tonight... Weak lift well ahead of the surface cold front produced isolated showers across the northern forecast area earlier. These have since exited, but the lift continues to produce some clouds across the area. Can't rule out another isolated shower developing through mid-afternoon with this lift. A line of showers and storms has developed in central Illinois this afternoon. This line is ahead of the surface cold front, which is farther to the northwest in Illinois. Instability continues to increase ahead of this line, with MLCAPE over 1500 J/kg. With some heating and moisture advection to go before the line arrives in central Indiana, the storms should become more numerous and intensify. The line will move through the area from northwest to southeast late this afternoon through this evening. Decent shear will work with the aforementioned instability to keep a threat of some severe storms around. The primary threats will be damaging winds and large hail. However, isolated tornadoes cannot be ruled out, especially north where shear is best. After midnight, only the southeast third or so will still see some scattered convection around. Instability will have waned by then, ending the severe threat. By 3 or 4 AM, convection should have exited the area. Drier air will lag well behind the front, and winds will diminish overnight. This will set up the potential for some fog, especially south where rain will have fallen last. Lows will generally be in the 60s. Thursday... The upper trough will linger across the area on Thursday. Low level moisture will remain. Any fog will lift early in the day, with a scattered to broken cumulus field developing. Some CAMs generate isolated convection Thursday afternoon with some weak forcing from the upper trough. This certainly cannot be ruled out, but for now feel odds are below mentioning in the forecast at this time. Highs will be in the lower and middle 80s. Friday through Monday... An upper high will nudge its way into the area during this period. This will keep the area dry with increasingly warmer temperatures. Initially dewpoints will be relatively low, but they will increase Sunday into Monday, making conditions more humid to go along with the elevated temperatures. Highs in the lower to middle 80s on Friday will warm to the middle 80s to lower 90s by Sunday. On Monday, highs could reach the upper 80s to middle 90s. Heat indices may be near 100 degrees on Monday. Tuesday and beyond... Uncertainty increases in how much influence the upper high will continue to have across the area. For now, believe it will hang on, so will go dry the vast majority of the area on Tuesday. By Wednesday, it may lose enough influence for isolated convection to develop in the afternoon. Heat will continue, with highs most likely from near 90 to the middle 90s. Heat indices near 100 would also then be likely. && .AVIATION (18Z TAF Issuance)... Issued at 1259 PM EDT Wed Aug 26 2026 Impacts: - Scattered convection mainly 21-04Z - Areas of MVFR fog overnight, with worse conditions possible Discussion: Scattered to broken clouds around 5000FT will continue this afternoon. Scattered convection will develop later this afternoon and move south across the sites through the evening. Overnight, fog and some stratus is likely to develop, especially across the southern sites. Will go MVFR, but IFR and worse are possible. This fog will mix out to a scattered to broken cumulus field for Thursday. Winds will become west this evening then northwest on Thursday. && .IND WATCHES/WARNINGS/ADVISORIES... None. && AVIATION...50 DISCUSSION...50
Hazardous weather outlook, Aug 26, 3:05 PM EDT, 5 hours 57 minutes before
Hazardous Weather Outlook National Weather Service Indianapolis IN 305 PM EDT Wed Aug 26 2026 INZ021-028>031-035>049-051>057-060>065-067>072-271915- 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- 305 PM EDT Wed Aug 26 2026 This hazardous weather outlook is for central Indiana. .DAY ONE...Through Tonight. Scattered thunderstorms will move northwest to southeast across central Indiana into the early overnight. Some severe storms are possible through this evening. Damaging winds and large hail are the primary threats. Locally heavy rain is also possible. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. Hot and humid conditions will return early next week. .SPOTTER INFORMATION STATEMENT... Spotters are encouraged to report any large hail, wind damage, or heavy rain through this evening. && More information, along with other weather, hydrological and climate information can be found at http://weather.gov/ind
In the hours before
Special weather statement, Aug 26, 7:24 PM EDT, 1 hour 38 minutes before
Special Weather Statement
National Weather Service Indianapolis IN
724 PM EDT Wed Aug 26 2026
INZ046-047-054-055-270000-
Johnson IN-Morgan IN-Hendricks IN-Marion IN-
724 PM EDT Wed Aug 26 2026
...A strong thunderstorm will impact portions of northeastern Morgan,
northern Johnson, southeastern Hendricks and southern Marion Counties
through 800 PM EDT...
At 723 PM EDT, Doppler radar was tracking a strong thunderstorm near
Plainfield, or 10 miles west of Indianapolis, moving southeast at 20
mph.
HAZARD...Winds in excess of 40 mph and pea size 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...
Indianapolis, Greenwood, Plainfield, Beech Grove, Speedway,
Mooresville, Southport, Avon, New Whiteland, Brooklyn, Clermont,
Clayton, Homecroft, Bethany, Indianapolis Int'l Airport, Waverly, and
Camby.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
Torrential rainfall is also occurring with this storm and may lead to
localized flooding. Do not drive your vehicle through flooded
roadways.
&&
LAT...LON 3947 8632 3969 8653 3984 8631 3964 8595
3962 8595
TIME...MOT...LOC 2323Z 320DEG 18KT 3973 8634
MAX HAIL SIZE...0.25 IN
MAX WIND GUST...40 MPH
MESpecial weather statement, Aug 26, 7:36 PM EDT, 1 hour 26 minutes before
Special Weather Statement
National Weather Service Indianapolis IN
736 PM EDT Wed Aug 26 2026
INZ045-052>055-062-063-270015-
Johnson IN-Clay IN-Brown IN-Owen IN-Morgan IN-Putnam IN-Monroe IN-
736 PM EDT Wed Aug 26 2026
...Strong thunderstorms will impact portions of northern Monroe,
Morgan, northwestern Brown, southwestern Johnson, east central Clay,
Owen and southern Putnam Counties through 815 PM EDT...
At 736 PM EDT, Doppler radar was tracking strong thunderstorms along
a line extending from 8 miles northwest of Martinsville to 11 miles
west of Spencer. Movement was southeast at 30 mph.
HAZARD...Wind gusts up to 50 mph and pea size 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...
Martinsville, Spencer, Ellettsville, Trafalgar, Morgantown, Gosport,
Paragon, Stinesville, Mahalasville, Quincy, McCormicks Creek State
Park, Patricksburg, Eminence, and Devore.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 3954 8660 3948 8616 3943 8603 3916 8668
3917 8675 3933 8713
TIME...MOT...LOC 2336Z 292DEG 24KT 3952 8653 3934 8698
MAX HAIL SIZE...0.25 IN
MAX WIND GUST...50 MPH
MESpecial weather statement, Aug 26, 8:08 PM EDT, 54 minutes before
Special Weather Statement
National Weather Service Indianapolis IN
808 PM EDT Wed Aug 26 2026
INZ054>056-063-064-270100-
Johnson IN-Brown IN-Morgan IN-Bartholomew IN-Shelby IN-
808 PM EDT Wed Aug 26 2026
...Strong thunderstorms will impact portions of southwestern Shelby,
southeastern Morgan, northeastern Brown, Johnson and northwestern
Bartholomew Counties through 900 PM EDT...
At 808 PM EDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Franklin to 11 miles north of Nashville.
Movement was southeast at 25 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...
Columbus, Shelbyville, Franklin, Edinburgh, Whiteland, Bargersville,
Flat Rock, Princes Lakes, Trafalgar, Morgantown, Clifford, Peoga,
Marietta, Spearsville, and Taylorsville.
This includes Interstate 65 between mile markers 69 and 93.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 3950 8575 3918 8589 3936 8629 3955 8618
TIME...MOT...LOC 0008Z 292DEG 22KT 3948 8614 3936 8619
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...50 MPH
MESpecial weather statement, Aug 26, 8:12 PM EDT, 50 minutes before
Special Weather Statement
National Weather Service Indianapolis IN
812 PM EDT Wed Aug 26 2026
INZ053-054-061>064-071-270115-
Brown IN-Owen IN-Morgan IN-Bartholomew IN-Greene IN-Jackson IN-
Monroe IN-
812 PM EDT Wed Aug 26 2026
...Strong thunderstorms will impact portions of Monroe, southeastern
Morgan, Brown, west central Bartholomew, southeastern Owen,
northeastern Greene and northwestern Jackson Counties through 915 PM
EDT...
At 811 PM EDT, Doppler radar was tracking strong thunderstorms along
a line extending from 9 miles northwest of Nashville to near
Bloomington to near Spencer. Movement was south at 25 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...
Bloomington, Columbus, Spencer, Nashville, Ellettsville, Morgantown,
Stinesville, Smithville, Lake Lemon, Beanblossom, Gnaw Bone, Freedom,
Spurgeons Corner, Monroe Reservoir, Woodville Hills, Elkinsville,
Charles Deam Wilderness, Stone Head, Story, and Unionville.
This includes Interstate 65 between mile markers 65 and 69.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
Torrential rainfall is also occurring with these storms and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.
&&
LAT...LON 3900 8692 3931 8693 3934 8658 3942 8636
3937 8625 3934 8625 3934 8620 3918 8588
3904 8620 3899 8641
TIME...MOT...LOC 0011Z 337DEG 20KT 3929 8636 3923 8657 3925 8680
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...50 MPH
MESpecial weather statement, Aug 26, 8:43 PM EDT, 19 minutes before
Special Weather Statement
National Weather Service Indianapolis IN
843 PM EDT Wed Aug 26 2026
INZ042-270115-
Randolph IN-
843 PM EDT Wed Aug 26 2026
...Strong thunderstorms will impact portions of southeastern Randolph
County through 915 PM EDT...
At 843 PM EDT, Doppler radar was tracking strong thunderstorms along
a line extending from Union City to 7 miles southwest of Winchester.
Movement was east at 30 mph.
HAZARD...Winds in excess of 40 mph and pea size 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...
Union City and Lynn.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 4000 8517 4027 8481 4001 8481
TIME...MOT...LOC 0043Z 270DEG 26KT 4022 8480 4008 8504
MAX HAIL SIZE...0.25 IN
MAX WIND GUST...40 MPH
MELocal storm report, Aug 26, 8:54 PM EDT, 8 minutes before
Preliminary Local Storm Report
National Weather Service Indianapolis IN
854 PM EDT Wed Aug 26 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0851 PM Flood 1 W Indiana University 39.17N 86.55W
08/26/2026 Monroe IN Public
Minor flooding being reported around the
city of Bloomington.
&&
CrosbieThe office that day
Everything else NWS Indianapolis, IN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 26, 8:08 PM EDT | Special Weather Statement | IND | Bartholomew, Johnson | 52 min |
| Aug 26, 8:12 PM EDT | Special Weather Statement | IND | Brown, Monroe, Owen | 63 min |
| Aug 26, 8:19 PM EDT | Severe Thunderstorm Warning | IND | Bartholomew, Brown, Johnson, Shelby | 41 min |
| Aug 26, 8:28 PM EDT | Areal Flood Advisory | IND | Monroe, Owen | 3 hr |
| Aug 26, 8:32 PM EDT | Severe Thunderstorm Warning | IND | Brown, Greene, Monroe, Owen | 58 min |
| Aug 26, 8:43 PM EDT | Special Weather Statement | IND | Randolph | 32 min |
| Aug 26, 8:51 PM EDT | Areal Flood Advisory | IND | Greene, Monroe | 3 hr |
| Aug 26, 9:12 PM EDT | Severe Thunderstorm Warning | IND | Bartholomew, Brown, Jackson, Lawrence | 63 min |
| Aug 26, 9:22 PM EDT | Special Weather Statement | IND | Gibson | 38 min |
| Aug 26, 9:43 PM EDT | Areal Flood Advisory | IND | Greene, Jackson, Lawrence, Monroe | 4 hr |
| Aug 26, 9:49 PM EDT | Severe Thunderstorm Warning | IND | Daviess, Greene, Lawrence, Martin | 41 min |
| Aug 26, 9:50 PM EDT | Severe Thunderstorm Warning | IND | Daviess, Knox | 22 min |
| Aug 26, 9:57 PM EDT | Special Weather Statement | IND | Knox | 33 min |
| Aug 26, 10:11 PM EDT | Severe Thunderstorm Warning | IND | Jackson | 34 min |
| Aug 26, 10:19 PM EDT | Areal Flood Advisory | IND | Lawrence, Martin | 4 hr |
| Aug 26, 10:23 PM EDT | Severe Thunderstorm Warning | IND | Daviess, Lawrence, Martin | 57 min |
| Aug 26, 11:08 PM EDT | Areal Flood Advisory | IND | Daviess, Martin | 4 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.