Alert archive / Indiana / Flash Flood Warnings in 2026
Flash Flood Warning 39, NWS Indianapolis, IN
NWS Indianapolis, IN issued this flash flood warning at Aug 12, 2026, 3:57 AM EDT for Decatur County, Indiana. It was in force for 9 hr. 3 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 12, 2026, 3:57 AM EDT (07:57 UTC)
- Expired
- Aug 12, 2026, 1:00 PM EDT
- In force
- 9 hr
- Issued by
- NWS Indianapolis, IN
- Area
- Storm-based polygon
- Flood severity
- None
County Decatur County, IN
The radar
The Indianapolis radar (KIND), 80 km from the middle of the area, began a volume at 08:01 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 12, 4:54 AM EDT | FLASH FLOOD | Greensburg, IN | Several flooded roads with at least one having water flowing over it. No specific location in the county noted. |
| Aug 12, 4:54 AM EDT | FLASH FLOOD | Greensburg, IN | Several flooded roads with at least one having water flowing over it. No specific location in the county noted. |
| Aug 12, 4:54 AM EDT | FLASH FLOOD | Greensburg, IN | Several flooded roads with at least one having water flowing over it. No specific location in the county noted. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Cncnati-Daytn, OH (KILN), launched 00:00Z, 8.0 hours before the alert went out and 149 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
- 12 J/kg
- Mixed-layer CIN
- -355 J/kg
- Mixed-layer LCL
- 997 m above ground
- 0-6 km bulk shear
- 50 kt
- 0-1 km storm-relative helicity
- 7 m²/s²
- 0-3 km storm-relative helicity
- 258 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.8
The text
As transmitted.
400
WGUS53 KIND 120757
FFWIND
INC031-121400-
/O.NEW.KIND.FF.W.0039.260812T0757Z-260812T1400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Indianapolis IN
357 AM EDT Wed Aug 12 2026
The National Weather Service in Indianapolis has issued a
* Flash Flood Warning for...
Decatur County in central Indiana...
* Until 1000 AM EDT Wednesday.
* At 357 AM EDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Between 0.75 and 1.75 inches of
rain have fallen. The expected rainfall rate is 0.5 to 1 inch in 1
hour. Additional rainfall amounts of 0.5 to 1.25 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...
Greensburg, Adams, Milford, Millhousen, Letts, Newpoint and Burney.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
LAT...LON 3915 8552 3926 8565 3935 8564 3935 8563
3941 8563 3940 8530 3927 8530
FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL RATE...0.5-1 INCH IN 1 HOUR
$$
AW2 follow-up statements
697
WGUS73 KIND 121004
FFSIND
Flash Flood Statement
National Weather Service Indianapolis IN
604 AM EDT Wed Aug 12 2026
INC031-121400-
/O.CON.KIND.FF.W.0039.000000T0000Z-260812T1400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Decatur IN-
604 AM EDT Wed Aug 12 2026
...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 10 AM EDT THIS
MORNING FOR DECATUR COUNTY...
At 604 AM EDT, local law enforcement reported flash flooding across
the county, especially in the southern portions. Between 3 and 6
inches of rain have fallen. The expected rainfall rate is 0.25 to 1
inch in 1 hour. Additional rainfall amounts of 0.5 to 1.25 inches
are possible in the warned area. Flash flooding is already occurring.
HAZARD...Life threatening flash flooding. Thunderstorms producing
flash flooding.
SOURCE...Law enforcement reported.
IMPACT...Life threatening flash flooding of creeks and streams,
urban areas, highways, streets and underpasses.
Some locations that will experience flash flooding include...
Greensburg, Adams, Milford, Millhousen, Letts, Newpoint and Burney.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
LAT...LON 3915 8552 3926 8565 3935 8564 3935 8563
3941 8563 3940 8530 3927 8530
FLASH FLOOD...OBSERVED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE
EXPECTED RAINFALL RATE...0.25-1 INCH IN 1 HOUR
$$
AW101
WGUS53 KIND 121345 RRD
FFWIND
INC031-121700-
/O.EXT.KIND.FF.W.0039.000000T0000Z-260812T1700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Indianapolis IN
945 AM EDT Wed Aug 12 2026
The National Weather Service in Indianapolis has extended the
* Flash Flood Warning for...
Decatur County in central Indiana...
* Until 100 PM EDT.
* At 945 AM EDT, local law enforcement reported thunderstorms
producing heavy rain across the warned area. Between 3 and 6
inches of rain have fallen. The expected rainfall rate is 0.25 to
1 inch in 1 hour. Additional rainfall amounts of 0.5 to 1.25
inches are possible in the warned area. Flash flooding is already
occurring.
HAZARD...Life threatening flash flooding. Thunderstorms
producing flash flooding.
SOURCE...Law enforcement reported.
IMPACT...Life threatening flash flooding of creeks and streams,
urban areas, highways, streets and underpasses.
* Some locations that will experience flash flooding include...
Greensburg, Adams, Milford, Millhousen, Letts, Newpoint and Burney.
Numerous flooded roadways have been reported across the region. Do
not drive into flood waters.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
LAT...LON 3941 8563 3940 8530 3927 8530 3922 8539
3920 8543 3920 8544 3918 8547 3917 8550
3915 8552 3926 8565 3935 8564 3935 8563
FLASH FLOOD...OBSERVED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE
EXPECTED RAINFALL RATE...0.25-1 INCH IN 1 HOUR
$$
EckhoffThe office that day
Everything else NWS Indianapolis, IN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 11, 8:48 PM EDT | Areal Flood Advisory | IND | Clay, Owen, Parke, Putnam, Vermillion, Vigo | 2 hr |
| Aug 11, 8:56 PM EDT | Special Weather Statement | IND | Putnam | 34 min |
| Aug 11, 9:21 PM EDT | Severe Thunderstorm Warning | IND | Hendricks, Morgan, Owen, Putnam | 39 min |
| Aug 11, 9:41 PM EDT | Areal Flood Advisory | IND | Hendricks, Morgan, Owen, Parke, Putnam | 3 hr |
| Aug 11, 10:02 PM EDT | Special Weather Statement | IND | Morgan | 43 min |
| Aug 11, 11:10 PM EDT | Special Weather Statement | IND | Shelby | 35 min |
| Aug 11, 11:13 PM EDT | Severe Thunderstorm Warning | IND | Hancock, Johnson, Marion, Shelby | 32 min |
| Aug 11, 11:44 PM EDT | Special Weather Statement | IND | Shelby | 31 min |
| Aug 11, 11:55 PM EDT | Severe Thunderstorm Warning | IND | Hancock, Rush, Shelby | 35 min |
| Aug 12, 12:31 AM EDT | Areal Flood Advisory | IND | Hancock, Johnson, Marion, Shelby | 3 hr |
| Aug 12, 12:41 AM EDT | Flash Flood Warning | IND | Shelby | 12 hr |
| Aug 12, 12:54 AM EDT | Areal Flood Advisory | IND | Decatur, Rush, Shelby | 117 min |
| Aug 12, 1:55 AM EDT | Areal Flood Advisory | IND | Henry, Rush | 51 min |
| Aug 12, 1:56 AM EDT | Areal Flood Warning | IND | Decatur, Jennings, Shelby | 4 hr |
| Aug 12, 2:18 AM EDT | Areal Flood Advisory | IND | Howard, Madison, Tipton | 7 hr |
| Aug 12, 2:31 AM EDT | Flash Flood Warning | IND | Delaware, Henry, Madison | 3 hr |
| Aug 12, 2:41 AM EDT | Areal Flood Advisory | IND | Delaware, Henry, Randolph | 3 hr |
| Aug 12, 2:46 AM EDT | Flash Flood Warning | IND | Henry, Rush | 3 hr |
| Aug 12, 2:51 AM EDT | Flash Flood Warning | IND | Decatur, Rush, Shelby | 3 hr |
| Aug 12, 3:14 AM EDT | Flash Flood Warning | IND | Henry | 2 hr |
| Aug 12, 4:34 AM EDT | Flash Flood Warning | IND | Henry, Rush | 8 hr |
| Aug 12, 5:24 AM EDT | Flash Flood Warning | IND | Decatur, Rush | 8 hr |
| Aug 12, 5:34 AM EDT | Flash Flood Warning | IND | Delaware, Henry, Randolph | 7 hr |
| Aug 12, 5:53 AM EDT | Areal Flood Warning | IND | Decatur, Jennings, Shelby | 2 hr |
| Aug 12, 6:20 AM EDT | River Flood Warning | IND | Carroll, Tippecanoe, White | 5 days |
| Aug 12, 6:20 AM EDT | River Flood Warning | IND | Carroll, White | 16 hr |
| Aug 12, 6:20 AM EDT | River Flood Warning | IND | Fountain, Parke, Tippecanoe, Vermillion, Warren | 7 days |
| Aug 12, 7:26 AM EDT | Areal Flood Advisory | IND | Hancock, Rush | 2 hr |
| Aug 12, 8:11 AM EDT | Flash Flood Warning | IND | Decatur, Jennings, Shelby | 5 hr |
| Aug 12, 8:23 AM EDT | River Flood Warning | IND | Delaware, Madison | 4 days |
| Aug 12, 8:30 AM EDT | River Flood Warning | IND | Hamilton, Madison | 6 days |
| Aug 12, 8:48 AM EDT | Areal Flood Advisory | IND | Bartholomew, Jennings, Shelby | 60 min |
| Aug 12, 9:14 AM EDT | Areal Flood Warning | IND | Madison | 33 min |
| Aug 12, 9:47 AM EDT | Flash Flood Warning | IND | Madison | 12 hr |
| Aug 12, 9:48 AM EDT | Areal Flood Warning | IND | Bartholomew, Jennings, Shelby | 9 hr |
| Aug 12, 9:49 AM EDT | Areal Flood Warning | IND | Hancock, Rush | 9 hr |
| Aug 12, 10:17 AM EDT | Flash Flood Warning | IND | Delaware | 12 hr |
| Aug 12, 10:26 AM EDT | Flash Flood Warning | IND | Howard, Tipton | 12 hr |
| Aug 12, 10:28 AM EDT | River Flood Warning | IND | Jackson, Jennings, Washington | 19 hr |
| Aug 12, 10:28 AM EDT | River Flood Warning | IND | Shelby | 4 days |
| Aug 12, 10:28 AM EDT | River Flood Warning | IND | Jackson, Lawrence, Washington | 7 days |
| Aug 12, 10:28 AM EDT | River Flood Warning | IND | Bartholomew | 4 days |
| Aug 12, 10:28 AM EDT | River Flood Warning | IND | Bartholomew, Jackson | 4 days |
| Aug 12, 10:28 AM EDT | River Flood Warning | IND | Bartholomew, Johnson, Shelby | 5 days |
| Aug 12, 10:42 AM EDT | River Flood Warning | IND | Hamilton, Marion | 6 days |
| Aug 12, 10:42 AM EDT | River Flood Warning | IND | Marion, Morgan | 7 days |
| Aug 12, 10:42 AM EDT | River Flood Warning | IND | Marion, Morgan | 6 days |
| Aug 12, 10:46 AM EDT | Flash Flood Warning | IND | Henry | 12 hr |
| Aug 12, 10:54 AM EDT | River Flood Warning | IND | Delaware, Randolph | 4 days |
| Aug 12, 11:29 AM EDT | River Flood Warning | IND | Fountain, Parke, Vermillion, Warren | 12 days |
| Aug 12, 11:29 AM EDT | River Flood Warning | IND | Parke, Vermillion, Vigo | 15 days |
| Aug 12, 11:45 AM EDT | Special Weather Statement | IND | Fountain, Warren | 30 min |
| Aug 12, 12:01 PM EDT | Severe Thunderstorm Warning | IND | Fountain, Warren | 44 min |
| Aug 12, 12:13 PM EDT | Severe Thunderstorm Warning | IND | Boone, Carroll, Clinton, Howard, Montgomery, Tippecanoe | 52 min |
| Aug 12, 12:42 PM EDT | Special Weather Statement | IND | Parke, Vermillion | 33 min |
| Aug 12, 12:47 PM EDT | Special Weather Statement | IND | Brown | 28 min |
| Aug 12, 12:58 PM EDT | Flash Flood Warning | IND | Rush | 11 hr |
| Aug 12, 12:58 PM EDT | Flash Flood Warning | IND | Decatur | 11 hr |
| Aug 12, 12:58 PM EDT | Flash Flood Warning | IND | Randolph | 11 hr |
| Aug 12, 12:58 PM EDT | Flash Flood Warning | IND | Shelby | 7 hr |
| Aug 12, 12:58 PM EDT | Flash Flood Warning | IND | Hancock | 7 hr |
| Aug 12, 12:59 PM EDT | Areal Flood Warning | IND | Bartholomew, Jennings | 3 hr |
| Aug 12, 1:00 PM EDT | Special Weather Statement | IND | Boone, Hamilton | 30 min |
| Aug 12, 1:02 PM EDT | Flash Flood Warning | IND | Boone, Hamilton | 7 hr |
| Aug 12, 1:02 PM EDT | Special Weather Statement | IND | Howard, Tipton | 28 min |
| Aug 12, 1:11 PM EDT | Special Weather Statement | IND | Parke | 34 min |
| Aug 12, 1:20 PM EDT | Flash Flood Warning | IND | Hendricks, Marion | 7 hr |
| Aug 12, 1:28 PM EDT | Special Weather Statement | IND | Putnam | 32 min |
| Aug 12, 1:31 PM EDT | Special Weather Statement | IND | Vigo | 29 min |
| Aug 12, 1:39 PM EDT | Severe Thunderstorm Warning | IND | Hendricks, Johnson, Marion, Morgan, Putnam | 36 min |
| Aug 12, 2:04 PM EDT | Special Weather Statement | IND | Johnson, Rush, Shelby | 26 min |
| Aug 12, 2:09 PM EDT | River Flood Warning | IND | Howard | 4 days |
| Aug 12, 2:09 PM EDT | Special Weather Statement | IND | Clay, Sullivan, Vigo | 36 min |
| Aug 12, 2:11 PM EDT | Flash Flood Warning | IND | Johnson | 5 hr |
| Aug 12, 2:17 PM EDT | Severe Thunderstorm Warning | IND | Decatur, Johnson, Rush, Shelby | 58 min |
| Aug 12, 2:28 PM EDT | Flash Flood Warning | IND | Bartholomew | 6 hr |
| Aug 12, 2:30 PM EDT | Special Weather Statement | IND | Bartholomew, Brown, Decatur | 30 min |
| Aug 12, 2:35 PM EDT | Severe Thunderstorm Warning | IND | Daviess, Greene, Knox, Sullivan | 40 min |
| Aug 12, 2:42 PM EDT | River Flood Warning | IND | Carroll, Howard | 4 days |
| Aug 12, 2:42 PM EDT | Severe Thunderstorm Warning | IND | Daviess, Knox, Sullivan | 48 min |
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.