Alert archive / Indiana / Severe Thunderstorm Warnings in 2026

Severe Thunderstorm Warning 300, NWS Indianapolis, IN

August 11, 20264 counties in Indiana

NWS Indianapolis, IN issued this severe thunderstorm warning at Aug 11, 2026, 9:21 PM EDT for 4 counties in Indiana. It was in force for 39 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Aug 11, 2026, 9:21 PM EDT (01:21 UTC)
Expired: Aug 11, 2026, 10:00 PM EDT
In force: 39 min
Issued by: NWS Indianapolis, IN
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Hendricks County, IN, Morgan County, IN, Owen County, IN, Putnam County, IN

The radar

The Indianapolis radar (KIND), 37 km from the middle of the area, began a volume at 01:25 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.

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 00:00Z, 1.4 hours before the alert went out and 246 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

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

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm 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 severe thunderstorm warning went out at Aug 11, 7:29 PM EDT, 1 hour 52 minutes earlier.

Area forecast discussion, Aug 11, 7:29 PM EDT, 1 hour 52 minutes before

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Hazardous weather outlook, Aug 11, 2:55 PM EDT, 6 hours 26 minutes before

Hazardous Weather Outlook
National Weather Service Indianapolis IN
255 PM EDT Tue Aug 11 2026

INZ021-028>031-035>049-051>057-062>065-071-072-121900-
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-Monroe-Brown-Bartholomew-Decatur-Jackson-Jennings-
255 PM EDT Tue Aug 11 2026

This hazardous weather outlook is for central Indiana.

.DAY ONE...Through Tonight.

Thunderstorms, some severe, are likely this afternoon and early
evening with the potential for damaging winds along with localized
flash flooding. Additional storms possible through the night with
flooding becoming the main threat.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

Thunderstorms will be possible at times through the week, with
potential for multiple rounds of severe storms through at least
Wednesday night. Damaging winds and heavy rainfall will be the
primary threats.

.SPOTTER INFORMATION STATEMENT...

Spotters are encouraged to remain vigilant this week as multiple rounds
of severe storms will be possible.

&&

More information, along with other weather, hydrological and climate
information can be found at http://weather.gov/ind

INZ060-061-067>070-121900-
Sullivan-Greene-Knox-Daviess-Martin-Lawrence-
255 PM EDT Tue Aug 11 2026

This hazardous weather outlook is for central Indiana.

.DAY ONE...Through Tonight.

Thunderstorms, some severe, are likely this afternoon and early
evening with the potential for damaging winds along with localized
flash flooding. Additional storms possible through the night with
flooding becoming the main threat.

Heat index values up to 105 today may cause heat related illnesses.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

Thunderstorms will be possible at times through the week, with
potential for multiple rounds of severe storms through at least
Wednesday night. Damaging winds and heavy rainfall will be the
primary threats.

.SPOTTER INFORMATION STATEMENT...

Spotters are encouraged to monitor the severe weather threat today
and report any damage.

&&

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 11, 6:34 PM EDT, 2 hours 47 minutes before

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Local storm report, Aug 11, 6:52 PM EDT, 2 hours 29 minutes before

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Local storm report, Aug 11, 6:56 PM EDT, 2 hours 25 minutes before

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Local storm report, Aug 11, 7:54 PM EDT, 1 hour 27 minutes before

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Local storm report, Aug 11, 8:19 PM EDT, 1 hour 2 minutes before

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Special weather statement, Aug 11, 8:56 PM EDT, 25 minutes before

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The 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, 9:41 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, 3:57 AM EDT	Flash Flood Warning	IND	Decatur	9 hr
Aug 12, 4:34 AM EDT	Flash Flood Warning Considerable damage threat	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 Emergency	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 EmergencyCatastrophic damage threat	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 EmergencyCatastrophic damage threat	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 Considerable damage threat	IND	Rush	11 hr
Aug 12, 12:58 PM EDT	Flash Flood Warning Considerable damage threat	IND	Decatur	11 hr
Aug 12, 12:58 PM EDT	Flash Flood Warning Considerable damage threat	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

Severe Thunderstorm Warnings in Indiana, 2026 Every severe thunderstorm 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.