Alert archive / Indiana / Severe Thunderstorm Warnings in 2026

Severe Thunderstorm Warning 248, NWS Northern Indiana

August 10, 2026Cass County, Fulton County, Miami County, Indiana

NWS Northern Indiana issued this severe thunderstorm warning at Aug 10, 2026, 8:38 PM EDT for Cass County, Fulton County, Miami County, Indiana. It was in force for 41 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 10, 2026, 8:38 PM EDT (00:38 UTC)
Expired: Aug 10, 2026, 9:19 PM EDT
In force: 41 min
Issued by: NWS Northern Indiana
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Cass County, IN, Fulton County, IN, Miami County, IN

The radar

The Northern Indiana radar (KIWX), 70 km from the middle of the area, began a volume at 00:37 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 10, 7:21 PM EDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 00:00Z, 0.6 hours before the alert went out and 216 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: 2294 J/kg
Mixed-layer CIN: -140 J/kg
Mixed-layer LCL: 1527 m above ground
0-6 km bulk shear: 40 kt
0-1 km storm-relative helicity: 74 m²/s²
0-3 km storm-relative helicity: 101 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 2.1

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 Northern Indiana wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 10, 8:31 PM EDT, 7 minutes earlier.

Area forecast discussion, Aug 10, 8:31 PM EDT, 7 minutes before

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In the hours before

Local storm report, Aug 10, 8:12 PM EDT, 26 minutes before

Preliminary Local Storm Report
National Weather Service Northern Indiana
812 PM EDT Mon Aug 10 2026

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

0810 PM     Hail             3 S Toto                41.22N 86.70W
08/10/2026  M0.50 Inch       Starke             IN   Amateur Radio

&&

Local storm report, Aug 10, 8:15 PM EDT, 23 minutes before

Preliminary Local Storm Report
National Weather Service Northern Indiana
815 PM EDT Mon Aug 10 2026

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

0814 PM     Hail             3 S Toto                41.22N 86.70W
08/10/2026  M1.00 Inch       Starke             IN   Amateur Radio

            Hail now 1 inch in diameter.

&&

Local storm report, Aug 10, 8:26 PM EDT, 12 minutes before

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Local storm report, Aug 10, 8:28 PM EDT, 10 minutes before

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Local storm report, Aug 10, 8:34 PM EDT, 4 minutes before

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Local storm report, Aug 10, 8:37 PM EDT, 1 minute before

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The office that day

Everything else NWS Northern Indiana issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Aug 10, 8:05 PM EDT	Severe Thunderstorm Warning	IWX	Fulton, Kosciusko, Marshall	40 min
Aug 10, 8:20 PM EDT	Severe Thunderstorm Warning	IWX	Kosciusko, Marshall	25 min
Aug 10, 8:24 PM EDT	Tornado Warning	IWX	Pulaski, Starke	12 min
Aug 10, 8:27 PM EDT	Severe Thunderstorm Warning	IWX	Adams, Allen	48 min
Aug 10, 8:34 PM EDT	Severe Thunderstorm Warning	IWX	Elkhart, Kosciusko, LaGrange, Noble, Whitley	23 min
Aug 10, 8:36 PM EDT	Severe Thunderstorm Warning	IWX	Kosciusko, Marshall	39 min
Aug 10, 9:10 PM EDT	Severe Thunderstorm Warning	IWX	Adams	35 min
Aug 10, 9:18 PM EDT	Severe Thunderstorm Warning	IWX	Adams, Allen, Wells	27 min
Aug 10, 9:38 PM EDT	Areal Flood Advisory	IWX	Adams	3 hr
Aug 11, 12:56 AM EDT	Flood Watch	IWX	Adams, Allen, Blackford, Cass, DeKalb, Elkhart and 18 more	3 days
Aug 11, 1:58 AM EDT	Special Marine Warning	IWX		92 min
Aug 11, 4:35 AM EDT	Special Weather Statement	IWX	Steuben	25 min
Aug 11, 5:17 AM EDT	Special Marine Warning	IWX		88 min
Aug 11, 5:27 AM EDT	Special Weather Statement	IWX	Fulton	33 min
Aug 11, 5:48 AM EDT	Severe Thunderstorm Warning	IWX	Fulton, Kosciusko, Marshall	27 min
Aug 11, 6:04 AM EDT	Areal Flood Advisory	IWX	Fulton, Pulaski, Starke	3 hr
Aug 11, 6:08 AM EDT	Severe Thunderstorm Warning	IWX	LaPorte, Saint Joseph	52 min
Aug 11, 6:13 AM EDT	Special Weather Statement	IWX	Kosciusko	32 min
Aug 11, 6:40 AM EDT	Severe Thunderstorm Warning Considerable damage threat	IWX	LaPorte, Saint Joseph	35 min
Aug 11, 7:02 AM EDT	Areal Flood Advisory	IWX	Allen, Cass, Fulton, Huntington, Miami, Wabash and 1 more	2 hr
Aug 11, 7:06 AM EDT	Severe Thunderstorm Warning	IWX	Adams, Jay, Wells	39 min
Aug 11, 7:08 AM EDT	Severe Thunderstorm Warning	IWX	Elkhart, Kosciusko, Marshall, Noble, Saint Joseph	38 min
Aug 11, 7:30 AM EDT	Severe Thunderstorm Warning	IWX	Blackford, Grant, Huntington, Jay, Wells	45 min
Aug 11, 7:43 AM EDT	Severe Thunderstorm Warning	IWX	Adams, Jay	47 min
Aug 11, 7:56 AM EDT	Tornado Warning	IWX	Jay	24 min
Aug 11, 8:43 AM EDT	Severe Thunderstorm Warning	IWX	Cass	47 min
Aug 11, 9:10 AM EDT	Areal Flood Advisory	IWX	Cass, Fulton, Miami, Pulaski, Wabash	80 min
Aug 11, 9:11 AM EDT	Severe Thunderstorm Warning	IWX	Cass, Miami	24 min
Aug 11, 9:21 AM EDT	Severe Thunderstorm Warning	IWX	Pulaski	39 min
Aug 11, 10:00 AM EDT	Flash Flood Warning	IWX	Pulaski	2 hr
Aug 11, 10:00 AM EDT	Severe Thunderstorm Warning	IWX	Pulaski	45 min
Aug 11, 10:09 AM EDT	Severe Thunderstorm Warning	IWX	LaPorte, Pulaski, Starke	51 min
Aug 11, 10:28 AM EDT	Flash Flood Warning	IWX	Cass, Fulton, Miami	92 min
Aug 11, 10:59 AM EDT	Flash Flood Warning	IWX	Fulton, Marshall, Pulaski, Starke	61 min
Aug 11, 10:59 AM EDT	Severe Thunderstorm Warning Considerable damage threat	IWX	Starke	46 min
Aug 11, 11:28 AM EDT	Severe Thunderstorm Warning Destructive damage threat	IWX	LaPorte, Starke	36 min
Aug 11, 11:34 AM EDT	Severe Thunderstorm Warning	IWX	Blackford, Cass, Grant, Huntington, Miami, Wabash and 1 more	41 min
Aug 11, 11:43 AM EDT	Severe Thunderstorm Warning Considerable damage threat	IWX	Pulaski	20 min
Aug 11, 11:57 AM EDT	Flash Flood Warning	IWX	Cass, Fulton, LaPorte, Miami, Pulaski, Starke and 1 more	3 hr
Aug 11, 12:09 PM EDT	Severe Thunderstorm Warning	IWX	Cass, Fulton, Pulaski	51 min
Aug 11, 12:11 PM EDT	Severe Thunderstorm Warning	IWX	Adams, Blackford, Grant, Jay, Wells	64 min
Aug 11, 12:14 PM EDT	Tornado Warning	IWX	LaPorte	46 min
Aug 11, 12:20 PM EDT	Tornado Warning	IWX	Pulaski, Starke	40 min
Aug 11, 12:22 PM EDT	Special Marine Warning	IWX		38 min
Aug 11, 12:26 PM EDT	Areal Flood Advisory	IWX	Blackford, Grant, Huntington, Miami, Wabash, Wells	2 hr
Aug 11, 12:33 PM EDT	Severe Thunderstorm Warning	IWX	Grant, Miami, Wabash	42 min
Aug 11, 12:34 PM EDT	Tornado Warning	IWX	Elkhart, Kosciusko, Marshall, Saint Joseph	56 min
Aug 11, 12:42 PM EDT	Severe Thunderstorm Warning Considerable damage threat	IWX	White	29 min
Aug 11, 12:46 PM EDT	Flash Flood Warning Considerable damage threat	IWX	LaPorte, Pulaski, Starke	101 min
Aug 11, 12:51 PM EDT	Severe Thunderstorm Warning Considerable damage threat	IWX	Cass, Fulton, Miami, Pulaski, White	39 min
Aug 11, 1:01 PM EDT	Severe Thunderstorm Warning	IWX	Cass, Miami	28 min
Aug 11, 1:10 PM EDT	Severe Thunderstorm Warning Destructive damage threat	IWX	Elkhart, Kosciusko, LaGrange, Noble, Whitley	46 min
Aug 11, 1:39 PM EDT	Severe Thunderstorm Warning	IWX	Allen, DeKalb	51 min
Aug 11, 1:47 PM EDT	Areal Flood Advisory	IWX	Cass, Miami	118 min
Aug 11, 2:25 PM EDT	Areal Flood Warning	IWX	Cass, Fulton, Grant, LaPorte, Marshall, Miami and 4 more	6 hr
Aug 11, 2:47 PM EDT	Areal Flood Advisory	IWX	Blackford, Grant, Jay, Wells	104 min
Aug 10, 9:41 PM EDT	Severe Thunderstorm Warning	IWX	Allen, Van Wert	49 min
Aug 10, 9:44 PM EDT	Severe Thunderstorm Warning	IWX	Putnam	18 min
Aug 10, 10:06 PM EDT	Severe Thunderstorm Warning	IWX	Defiance, Henry, Paulding, Putnam	24 min
Aug 10, 11:31 PM EDT	Severe Thunderstorm Warning	IWX	Fulton	29 min
Aug 11, 4:24 AM EDT	Severe Thunderstorm Warning	IWX	Fulton	51 min
Aug 11, 8:28 AM EDT	Special Weather Statement	IWX	Allen, Putnam	17 min
Aug 11, 1:51 AM EDT	Special Weather Statement	IWX	Berrien	24 min
Aug 11, 2:17 AM EDT	Special Weather Statement	IWX	Berrien	28 min
Aug 11, 2:46 AM EDT	Severe Thunderstorm Warning	IWX	Berrien, Cass	29 min
Aug 11, 3:48 AM EDT	Special Weather Statement	IWX	Hillsdale	27 min
Aug 11, 3:50 AM EDT	Special Weather Statement	IWX	Cass	25 min
Aug 11, 4:07 AM EDT	Special Weather Statement	IWX	Cass	23 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.