Alert archive / Indiana / Severe Thunderstorm Warnings in 2026

Severe Thunderstorm Warning 276, NWS Indianapolis, IN

August 11, 2026Delaware County, Randolph County, Indiana

NWS Indianapolis, IN issued this severe thunderstorm warning at Aug 11, 2026, 12:40 PM EDT for Delaware County, Randolph County, Indiana. It was in force for 65 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, 12:40 PM EDT (16:40 UTC)
Expired: Aug 11, 2026, 1:45 PM EDT
In force: 65 min
Issued by: NWS Indianapolis, IN
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Delaware County, IN, Randolph County, IN

The radar

The Indianapolis radar (KIND), 106 km from the middle of the area, began a volume at 16:42 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Aug 11, 11:01 AM EDT	Severe Thunderstorm Watch	SPC	10 hr

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 12:00Z, 4.7 hours before the alert went out and 147 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: 3952 J/kg
Mixed-layer CIN: -27 J/kg
Mixed-layer LCL: 708 m above ground
0-6 km bulk shear: 29 kt
0-1 km storm-relative helicity: 144 m²/s²
0-3 km storm-relative helicity: 188 m²/s²
Significant tornado parameter: 2.4
Supercell composite: 13.3

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, 8:58 AM EDT, 3 hours 42 minutes earlier.

Area forecast discussion, Aug 11, 8:58 AM EDT, 3 hours 42 minutes before

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Hazardous weather outlook, Aug 11, 2:34 AM EDT, 10 hours 6 minutes before

Hazardous Weather Outlook
National Weather Service Indianapolis IN
234 AM EDT Tue Aug 11 2026

INZ021-028>031-035>049-051>057-062>065-071-072-120645-
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-
234 AM EDT Tue Aug 11 2026

This hazardous weather outlook is for central Indiana.

.DAY ONE...Today and Tonight.

Severe storms likely today with the potential for a storm complex
with widespread 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>070-120645-
Sullivan-Greene-Knox-Daviess-Martin-Lawrence-
234 AM EDT Tue Aug 11 2026

This hazardous weather outlook is for central Indiana.

.DAY ONE...Today and Tonight.

Severe storms likely today with the potential for a storm complex
with widespread 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, 12:02 PM EDT, 38 minutes before

Preliminary Local Storm Report
National Weather Service Indianapolis IN
1202 PM EDT Tue Aug 11 2026

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0800 AM     Tstm Wnd Dmg     7 NE Saratoga           40.31N 84.82W
08/11/2026                   Randolph           IN   Law Enforcement

            Delayed report. A small number of trees and
            utility lines were knocked down by
            thunderstorm winds in this approximate area.
            Time has been estimated from radar.

&&

BH

Local storm report, Aug 11, 12:05 PM EDT, 35 minutes before

Preliminary Local Storm Report
National Weather Service Indianapolis IN
1205 PM EDT Tue Aug 11 2026

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0806 AM     Tstm Wnd Dmg     Winchester              40.17N 84.98W
08/11/2026                   Randolph           IN   Law Enforcement

            Delayed report. A small number of trees and
            utility lines were knocked down by
            thunderstorm winds in this approximate area.
            Time has been estimated from radar.

&&

BH

Local storm report, Aug 11, 12:12 PM EDT, 28 minutes before

Preliminary Local Storm Report
National Weather Service Indianapolis IN
1212 PM EDT Tue Aug 11 2026

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0837 AM     Hail             1 SE Woodlawn Heights   40.11N 85.68W
08/11/2026  M0.50 Inch       Madison            IN   Public

0840 AM     Hail             2 W Chesterfield        40.10N 85.63W
08/11/2026  E0.75 Inch       Madison            IN   Public

            Report from mPING: Dime (0.75 in.).

0844 AM     Hail             Chesterfield            40.11N 85.60W
08/11/2026  E0.70 Inch       Madison            IN   Public

&&

Local storm report, Aug 11, 12:26 PM EDT, 14 minutes before

Preliminary Local Storm Report
National Weather Service Indianapolis IN
1226 PM EDT Tue Aug 11 2026

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1156 AM     Hail             Albany                  40.30N 85.23W
08/11/2026  E0.25 Inch       Delaware           IN   Amateur Radio

&&

BH

Local storm report, Aug 11, 12:38 PM EDT, 2 minutes before

Preliminary Local Storm Report
National Weather Service Indianapolis IN
1238 PM EDT Tue Aug 11 2026

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1213 PM     Tstm Wnd Gst     1 N Alexandria          40.28N 85.67W
08/11/2026  M55 MPH          Madison            IN   Public

&&

BH

Local storm report, Aug 11, 12:40 PM EDT, 0 minutes before

Preliminary Local Storm Report
National Weather Service Indianapolis IN
1240 PM EDT Tue Aug 11 2026

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1232 PM     Hail             3 S Wawpecong           40.53N 86.06W
08/11/2026  M0.50 Inch       Howard             IN   Public

            Report from mPING: Half-inch (0.50 in.).

&&

BH

The office that day

Everything else NWS Indianapolis, IN issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Aug 11, 1:38 AM EDT	Flood Watch	IND	Bartholomew, Boone, Brown, Carroll, Clay, Clinton and 31 more	6 days
Aug 11, 1:38 AM EDT	Heat Advisory	IND	Daviess, Greene, Knox, Lawrence, Martin, Sullivan	17 hr
Aug 11, 7:41 AM EDT	Severe Thunderstorm Warning	IND	Delaware, Madison, Randolph	49 min
Aug 11, 8:00 AM EDT	Severe Thunderstorm Warning	IND	Delaware, Henry, Randolph	45 min
Aug 11, 8:20 AM EDT	Severe Thunderstorm Warning	IND	Delaware, Hancock, Henry, Madison	55 min
Aug 11, 9:10 AM EDT	Severe Thunderstorm Warning	IND	Henry, Rush	30 min
Aug 11, 11:48 AM EDT	Special Weather Statement	IND	Delaware, Madison	42 min
Aug 11, 12:05 PM EDT	Severe Thunderstorm Warning	IND	Delaware, Madison	40 min
Aug 11, 12:49 PM EDT	Severe Thunderstorm Warning	IND	Carroll, Clinton, Howard, Tippecanoe	56 min
Aug 11, 1:09 PM EDT	Severe Thunderstorm Warning Considerable damage threat	IND	Clinton, Howard, Tipton	51 min
Aug 11, 1:25 PM EDT	Severe Thunderstorm Warning Considerable damage threat	IND	Boone, Clinton, Hamilton, Madison, Montgomery, Tippecanoe and 1 more	65 min
Aug 11, 1:30 PM EDT	Flash Flood Warning	IND	Delaware, Howard, Madison, Randolph	4 hr
Aug 11, 1:39 PM EDT	Areal Flood Advisory	IND	Carroll, Clinton, Howard, Madison, Tippecanoe, Tipton	6 hr
Aug 11, 1:49 PM EDT	Severe Thunderstorm Warning Considerable damage threat	IND	Boone, Hamilton, Hancock, Hendricks, Johnson, Madison and 3 more	56 min
Aug 11, 2:12 PM EDT	Severe Thunderstorm Warning	IND	Delaware, Hancock, Henry, Rush, Shelby	63 min
Aug 11, 2:13 PM EDT	Areal Flood Advisory	IND	Boone, Delaware, Hamilton, Henry, Madison, Randolph	6 hr
Aug 11, 2:42 PM EDT	Special Weather Statement	IND	Bartholomew, Brown, Decatur, Jennings	63 min
Aug 11, 2:47 PM EDT	Areal Flood Advisory	IND	Hancock, Henry, Marion, Rush, Shelby	7 hr
Aug 11, 2:58 PM EDT	Severe Thunderstorm Warning	IND	Decatur	31 min
Aug 11, 3:10 PM EDT	Severe Thunderstorm Warning	IND	Carroll, Clinton, Tippecanoe, Warren	28 min
Aug 11, 3:14 PM EDT	Severe Thunderstorm Warning	IND	Fountain, Tippecanoe, Warren	46 min
Aug 11, 3:26 PM EDT	Severe Thunderstorm Warning	IND	Brown, Johnson, Monroe, Morgan, Owen	49 min
Aug 11, 3:41 PM EDT	Severe Thunderstorm Warning	IND	Fountain, Montgomery, Tippecanoe	49 min
Aug 11, 4:11 PM EDT	Severe Thunderstorm Warning	IND	Boone, Clinton, Hendricks, Montgomery	34 min
Aug 11, 4:30 PM EDT	Severe Thunderstorm Warning	IND	Boone, Hamilton, Hancock, Hendricks, Marion	30 min
Aug 11, 4:31 PM EDT	Severe Thunderstorm Warning	IND	Fountain, Montgomery, Parke	44 min
Aug 11, 5:01 PM EDT	Special Weather Statement	IND	Hancock, Johnson, Marion	29 min
Aug 11, 5:05 PM EDT	Special Weather Statement	IND	Parke, Vermillion	55 min
Aug 11, 5:14 PM EDT	Severe Thunderstorm Warning	IND	Clay, Fountain, Montgomery, Parke, Putnam, Vermillion and 1 more	45 min
Aug 11, 5:19 PM EDT	Areal Flood Advisory	IND	Delaware, Howard, Madison, Randolph	3 hr
Aug 11, 5:20 PM EDT	Severe Thunderstorm Warning	IND	Hendricks, Montgomery, Putnam	25 min
Aug 11, 5:27 PM EDT	Tornado Warning	IND	Fountain, Parke, Vermillion	14 min
Aug 11, 5:34 PM EDT	Special Weather Statement	IND	Lawrence	41 min
Aug 11, 5:36 PM EDT	Special Weather Statement	IND	Morgan	39 min
Aug 11, 5:46 PM EDT	Severe Thunderstorm Warning	IND	Clay, Greene, Hendricks, Monroe, Morgan, Owen and 4 more	59 min
Aug 11, 5:53 PM EDT	Areal Flood Warning	IND	Clay, Owen, Parke, Putnam, Vermillion, Vigo	3 hr
Aug 11, 6:02 PM EDT	Severe Thunderstorm Warning Considerable damage threat	IND	Clay, Monroe, Morgan, Owen, Putnam	28 min
Aug 11, 6:19 PM EDT	Severe Thunderstorm Warning	IND	Clay, Greene, Sullivan, Vigo	26 min
Aug 11, 6:27 PM EDT	Severe Thunderstorm Warning	IND	Bartholomew, Brown, Daviess, Decatur, Greene, Jackson and 6 more	63 min
Aug 11, 6:42 PM EDT	Severe Thunderstorm Warning	IND	Daviess, Greene, Knox, Lawrence, Martin, Sullivan	48 min
Aug 11, 7:04 PM EDT	Severe Thunderstorm Warning	IND	Bartholomew, Decatur, Jackson, Jennings	41 min
Aug 11, 7:20 PM EDT	Severe Thunderstorm Warning	IND	Clay, Sullivan, Vigo	24 min
Aug 11, 7:22 PM EDT	Areal Flood Advisory	IND	Daviess, Greene, Knox, Lawrence, Martin	3 hr
Aug 11, 7:29 PM EDT	Severe Thunderstorm Warning	IND	Daviess, Martin	15 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.