Indiana, 2026Flash Flood and Flood in Indiana, May 27, 2026
May 27, 2026 · NWS IND · 2 events in 2 counties and zones
14 inches in the Wichita Hill neighborhood of far southwestern Marion County. Flash flooding was limited to adjacent far northeastern Morgan County, focused along Mann Road.
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- Deaths
- 0
- Injuries
- 0
- Property damage
- $30,000
- Crop damage
- None recorded
- Events
- 2
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
On the 27th afternoon, slow-moving thunderstorms produced heavy to locally extreme rainfall, including a public observation of 3.14 inches in the Wichita Hill neighborhood of far southwestern Marion County. Flash flooding was limited to adjacent far northeastern Morgan County, focused along Mann Road.
What forecasters said that day
The local office's own words before the first event, 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 the first event at May 27, 1:51 PM EST, 39 minutes earlier. Its key messages:
- Scattered to numerous showers and storms at times today
- Locally heavy rainfall possible today
- Above normal temperatures expected through Thursday.
- Mainly dry weather expected from Thursday onward.
Area forecast discussion, May 27, 1:51 PM EST, 39 minutes before
Area Forecast Discussion
National Weather Service Indianapolis IN
251 PM EDT Wed May 27 2026
.KEY MESSAGES...
- Scattered to numerous showers and storms at times today
- Locally heavy rainfall possible today
- Above normal temperatures expected through Thursday.
- Mainly dry weather expected from Thursday onward.
&&
.DISCUSSION (This evening through Wednesday)...
Issued at 250 PM EDT Wed May 27 2026
Today through tonight...
Surface low pressure located roughly over Knox County, per visible
satellite imagery, is slowly moving eastward today. A surface trough
extends from the low eastward into Ohio. This has been the source
of numerous showers and thunderstorms this morning. Shower activity
had largely diminished earlier this afternoon, however, as upper-
level support exits eastward. Nevertheless, showers have once again
begun slowly intensifying as sunshine warms the boundary layer
leading to some weak instability.
ACARS soundings out of IND show meager lapse rates but rich moisture
throughout the column. A deep warm cloud layer has lead to high
efficiency rainfall production, and heavy rainfall rates have been
observed (2 to 3 inches have fallen in a few localized areas).
Though shower/storm activity is less numerous than earlier, some
very localized totals of 1 to 2 inches are possible this afternoon.
Guidance shows surface low pressure weakening and drifting east this
evening, taking any lingering showers/storms with it. Clearing skies
are expected tonight as high pressure builds in from the north. This
process may take some time, and low-level moisture from today's
rainfall may take most of the night to scour out. If skies clear
soon enough, and dry air from the high doesn't arrive until morning,
then fog may develop tonight. Locally dense fog is possible.
Thursday through early next week...
Long range guidance continues to depict an Omega Block pattern
developing aloft with ridging centered over the central CONUS and
central portions of Canada. Meanwhile, surface high pressure builds
into the region from the north. This will promote dry weather
conditions late this week through early next week. Expect another
warm day Thursday in the low 80s with highs then holding nearly
steady in the mid to upper 70s through early next week.
A few models have hinted at the ridge retrograding slightly,
allowing for a shortwave to move in aloft early next week. These
solutions are outliers, but this will continue to be monitored as
this could impact temperatures. Precipitation still appears very
unlikely during the period.
&&
.AVIATION (18Z TAF Issuance)...
Issued at 222 PM EDT Wed May 27 2026
Impacts:
- MVFR ceilings at HUF/IND/BMG improving to VFR later today. Brief
period of IFR visibility possible within heavier showers
- Scattered to numerous showers and storms expected at most sites
through around 00z
Discussion:
Near MVFR to MVFR ceilings are ongoing at all central Indiana sites
this afternoon, but will improve to solidly VFR towards late this
evening. Scattered to numerous showers and isolated thunderstorms
are ongoing at all sites this afternoon except LAF. Isolated IFR
visibilities are possible within stronger showers. Look for MVFR
ceilings to then scatter out Wednesday afternoon.
Winds are expected to be lighter and somewhat variable at times, but
the wind direction should predominately be east-northeasterly for
most sites except BMG. Patchy fog is also possible during the early
morning hours, mainly across the southern half of the forecast area,
but not enough confidence to include in tafs at this time.
&&
.IND WATCHES/WARNINGS/ADVISORIES...
None.
&&
AVIATION...KF
DISCUSSION...Melo/Eckhoff
Hazardous weather outlook, May 27, 1:58 PM EST, 32 minutes before
Hazardous Weather Outlook
National Weather Service Indianapolis IN
258 PM EDT Wed May 27 2026
INZ021-028>031-035>044-281900-
Carroll-Warren-Tippecanoe-Clinton-Howard-Fountain-Montgomery-Boone-
Tipton-Hamilton-Madison-Delaware-Randolph-Vermillion-Parke-
258 PM EDT Wed May 27 2026
This hazardous weather outlook is for central Indiana.
.DAY ONE...Through Tonight.
No hazardous weather is expected at this time.
.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.
No hazardous weather is expected at this time.
.SPOTTER INFORMATION STATEMENT...
Spotter activation is not anticipated.
&&
More information, along with other weather, hydrological and climate
information can be found at http://weather.gov/ind
INZ045>049-051>057-060>065-067>072-281900-
Putnam-Hendricks-Marion-Hancock-Henry-Vigo-Clay-Owen-Morgan-Johnson-
Shelby-Rush-Sullivan-Greene-Monroe-Brown-Bartholomew-Decatur-Knox-
Daviess-Martin-Lawrence-Jackson-Jennings-
258 PM EDT Wed May 27 2026
This hazardous weather outlook is for central Indiana.
.DAY ONE...Through Tonight.
Thunderstorms with locally heavy rainfall are possible. Localized
flash flooding is possible. Isolated damaging winds can't be ruled
out in the far SE.
.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.
No hazardous weather is expected at this time.
.SPOTTER INFORMATION STATEMENT...
Spotters are encouraged to report rainfall amounts and any flooding
observed.
&&
More information, along with other weather, hydrological and climate
information can be found at http://weather.gov/ind
Flash Flood, Morgan
- When
- May 27, 2:30 PM EST to 4:30 PM EST
- Where
- Morgan County, 3.57 mi NNE of Landersdale to 1.22 mi WNW of Landersdale
- Cause
- Heavy Rain
- Property damage
- $25,000
- Reported by
- Emergency Manager
- Coordinates
- 39.666, -86.238
Mann Road was flooded from Spring Lake Road to the Marion County line from up to 3.25 inches of rainfall, with a deer rescued next to an inundated car. The water crossing Mann Road near the car was nearly 2 feet deep. Landersdale Road also flooded east of Paddock Road as did Cox Road north of Landersdale Road.
Flood, Rush
- When
- May 27, 3:48 PM EST to 5:00 PM EST
- Where
- Rush County, 2.11 mi SE of New Salem to 1.77 mi SSE of New Salem
- Cause
- Heavy Rain
- Property damage
- $5,000
- Reported by
- Emergency Manager
- Coordinates
- 39.510, -85.320
County Road 700 East flooded south of US Highway 52 from 2.20 inches of rain.
- Flash Flood
- Flooding that begins within six hours of the rain that causes it, or of a dam or levee failure or ice jam release, often with deadly speed.
- Flood
- Flooding that develops more slowly than a flash flood: rivers leaving their banks, or water standing over land for an extended time.
After NWS Directive 10-1605, the rules offices file Storm Data by.
- Flash Flooding and Flooding in West Virginia, May 27 to 28, 2026$25,000 · 50 kt wind · 53 events
- Hail and Damaging Winds in Virginia, May 27, 20262 injured · $38,000 · 1 in hail · 21 events
- Hail and Damaging Winds in Virginia, May 27, 2026$116,000 · 1.75 in hail · 11 events
- Flash Flooding and Flooding in Ohio, May 27, 2026$56,000 · 50 kt wind · 24 events
- Tornadoes in Oklahoma, May 27, 2026$50,000 · EF1 · 2 events
- Damaging Winds in North Carolina, May 27, 2026$82,000 · 50 kt wind · 11 events
- Damaging Winds in Texas, May 27, 2026$43,000 · 61 kt wind · 2 events
- Flash Flood and Damaging Winds in North Carolina, May 27, 2026$25,000 · 50 kt wind · 3 events
- Hail and Damaging Winds in Virginia, May 27, 2026$16,000 · 1 in hail · 8 events
- Flash Flooding in Georgia, May 27, 2026$20,000 · 2 events
- Hail and Damaging Winds in Wisconsin, May 27, 2026$17,000 · 1 in hail · 5 events
- Marine Thunderstorm Winds in Gulf of Mexico, May 27, 202650 kt wind · 16 events
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 1341399, 1341396.