Alert archive / Indiana / Severe Thunderstorm Warnings in 2026
Severe Thunderstorm Warning 311, NWS Indianapolis, IN
NWS Indianapolis, IN issued this severe thunderstorm warning at Aug 13, 2026, 3:46 PM EDT for Parke County, Vermillion County, Vigo County, Indiana. It was in force for 59 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 13, 2026, 3:46 PM EDT (19:46 UTC)
- Expired
- Aug 13, 2026, 4:45 PM EDT
- In force
- 59 min
- Issued by
- NWS Indianapolis, IN
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Parke County, IN, Vermillion County, IN, Vigo County, IN
The radar
The Indianapolis radar (KIND), 92 km from the middle of the area, began a volume at 19:45 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 13, 1:30 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Lincoln, IL (KILX), launched 12:00Z, 7.8 hours before the alert went out and 118 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
- 882 J/kg
- Mixed-layer CIN
- -129 J/kg
- Mixed-layer LCL
- 746 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- 60 m²/s²
- 0-3 km storm-relative helicity
- 144 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 3.7
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 13, 2:29 PM EDT, 1 hour 17 minutes earlier.
Area forecast discussion, Aug 13, 2:29 PM EDT, 1 hour 17 minutes before
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</html>Hazardous weather outlook, Aug 13, 3:17 PM EDT, 29 minutes before
Hazardous Weather Outlook National Weather Service Indianapolis IN 317 PM EDT Thu Aug 13 2026 INZ021-028>031-035>049-051>057-060>065-067>072-141930- 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-Sullivan-Greene-Monroe-Brown-Bartholomew-Decatur-Knox-Daviess- Martin-Lawrence-Jackson-Jennings- 317 PM EDT Thu Aug 13 2026 This hazardous weather outlook is for central Indiana. .DAY ONE...Through Tonight. Flooding will continue across mainly eastern portions of central Indiana. Some portions of the Upper White River and Big Blue River may reach major flood stage. Strong to severe storms will be possible this afternoon and evening with damaging winds as the main threat. Flash flooding then looks likely through the overnight, mainly across the I-74 corridor. Heavy Rain is possible along and north of the I-74 corridor tonight. This may result in flooding and flash flooding. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. Heavy Rain is possible along and north of the I-74 corridor on Friday. This may result in flooding and flash flooding. Thunderstorms will be possible at times through the weekend along with continued river flooding. .SPOTTER INFORMATION STATEMENT... Spotters are encouraged to remain vigilant this week as multiple rounds of severe storms will be possible. Report incidents of Flooding. Do not enter flooded areas. && 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 13, 10:47 AM EDT, 4 hours 59 minutes before
Preliminary Local Storm Report
National Weather Service Indianapolis IN
1047 AM EDT Thu Aug 13 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0303 PM Tornado 3 NNW Bruceville 38.80N 87.44W
08/12/2026 Knox IN NWS Storm Survey
A brief EF-1 tornado with estimated peak
winds of 100 mph impacted several groves of
trees and an outbuilding. There were
multiple videos of the tornado and drone
footage showed many trees snapped along the
path.
&&
GMThe office that day
Everything else NWS Indianapolis, IN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 12, 8:13 PM EDT | Areal Flood Warning | IND | Hendricks, Marion | 13 hr |
| Aug 12, 8:20 PM EDT | Areal Flood Warning | IND | Bartholomew | 40 hr |
| Aug 12, 10:05 PM EDT | Areal Flood Warning | IND | Madison | 38 hr |
| Aug 12, 10:11 PM EDT | Areal Flood Warning | IND | Delaware | 38 hr |
| Aug 12, 10:19 PM EDT | Areal Flood Warning | IND | Howard, Tipton | 11 hr |
| Aug 12, 10:24 PM EDT | Areal Flood Warning | IND | Henry | 38 hr |
| Aug 12, 11:37 PM EDT | Areal Flood Warning | IND | Rush | 36 hr |
| Aug 12, 11:39 PM EDT | Areal Flood Warning | IND | Decatur | 36 hr |
| Aug 12, 11:41 PM EDT | Areal Flood Warning | IND | Randolph | 36 hr |
| Aug 12, 11:43 PM EDT | Areal Flood Warning | IND | Jennings | 9 hr |
| Aug 13, 1:35 AM EDT | Areal Flood Warning | IND | Clay, Greene, Sullivan, Vigo | 5 hr |
| Aug 13, 2:22 AM EDT | Areal Flood Warning | IND | Lawrence, Martin | 5 hr |
| Aug 13, 3:30 AM EDT | Dense Fog Advisory | IND | Boone, Carroll, Clay, Clinton, Delaware, Fountain and 21 more | 6 hr |
| Aug 13, 12:22 PM EDT | River Flood Warning | IND | Knox, Sullivan | 17 days |
| Aug 13, 12:22 PM EDT | River Flood Warning | IND | Sullivan, Vigo | 14 days |
| Aug 13, 12:22 PM EDT | River Flood Warning | IND | Knox, Sullivan | 18 days |
| Aug 13, 12:37 PM EDT | River Flood Warning | IND | Monroe, Morgan, Owen | 6 days |
| Aug 13, 1:08 PM EDT | River Flood Warning | IND | Hamilton, Hancock, Madison, Marion | 66 hr |
| Aug 13, 3:24 PM EDT | Severe Thunderstorm Warning | IND | Fountain, Parke, Vermillion, Warren | 66 min |
| Aug 13, 3:48 PM EDT | Special Weather Statement | IND | Monroe | 42 min |
| Aug 13, 4:06 PM EDT | Areal Flood Advisory | IND | Clay, Fountain, Montgomery, Parke, Putnam, Vermillion and 1 more | 3 hr |
| Aug 13, 4:26 PM EDT | Tornado Warning | IND | Parke, Vermillion, Vigo | 19 min |
| Aug 13, 4:33 PM EDT | Severe Thunderstorm Warning | IND | Clay, Owen, Parke, Putnam, Vigo | 57 min |
| Aug 13, 4:54 PM EDT | Severe Thunderstorm Warning | IND | Clay, Owen, Sullivan, Vigo | 51 min |
| Aug 13, 5:17 PM EDT | Severe Thunderstorm Warning | IND | Brown, Greene, Monroe, Morgan, Owen | 58 min |
| Aug 13, 5:26 PM EDT | Areal Flood Warning | IND | Brown, Clay, Johnson, Monroe, Morgan, Owen and 3 more | 6 hr |
| Aug 13, 5:30 PM EDT | Special Weather Statement | IND | Jennings | 60 min |
| Aug 13, 5:54 PM EDT | River Flood Warning | IND | Daviess, Greene, Knox | 11 days |
| Aug 13, 5:54 PM EDT | River Flood Warning | IND | Greene, Monroe, Owen | 10 days |
| Aug 13, 6:00 PM EDT | Special Weather Statement | IND | Bartholomew | 60 min |
| Aug 13, 6:12 PM EDT | Areal Flood Warning | IND | Brown, Jackson, Jennings, Lawrence, Monroe | 3 hr |
| Aug 13, 6:50 PM EDT | Special Weather Statement | IND | Lawrence | 55 min |
Nearby
Severe Thunderstorm Warnings in Indiana, 2026Every 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.