Alert archive / Indiana / Tornado Warnings in 2026

Tornado Warning 76, NWS Indianapolis, IN

August 12, 2026Knox County, Indiana

NWS Indianapolis, IN issued this tornado warning at Aug 12, 2026, 3:03 PM EDT for Knox County, Indiana. It was in force for 20 min. 5 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, 3:03 PM EDT (19:03 UTC)
Expired
Aug 12, 2026, 3:23 PM EDT
In force
20 min
Issued by
NWS Indianapolis, IN
Area
Storm-based polygon
Tornado
Radar indicated
Hail
1.5 in

County Knox County, IN

The radar

The Evansville,IN radar (KVWX), 69 km from the middle of the area, began a volume at 19:06 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

TimeReportWhereRemark
Aug 12, 3:03 PM EDTTORNADO3 Nnw Bruceville, INA 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.
Aug 12, 3:03 PM EDTTORNADO3 Nnw Bruceville, INA 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.
Aug 12, 3:05 PM EDTTSTM WND DMG3 Nnw Bruceville, INPossible tornado. Debris in the air and trees blown down.
Aug 12, 3:05 PM EDTTSTM WND DMG3 Nnw Bruceville, INPossible tornado. Debris in the air and trees blown down.
Aug 12, 3:05 PM EDTTSTM WND DMG3 Nnw Bruceville, INPossible tornado. Debris in the air and trees blown down.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The watch it was issued in

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

IssuedProductOfficeLasted
Aug 12, 11:35 AM EDTSevere Thunderstorm WatchSPC5 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 7.1 hours before the alert went out and 186 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-pSkew-T log-p diagram, Lincoln, IL at 12:00Z on 2026-08-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2166 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Lincoln, IL at 12:00Z on 2026-08-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 50 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
2166 J/kg
Mixed-layer CIN
-186 J/kg
Mixed-layer LCL
1652 m above ground
0-6 km bulk shear
21 kt
0-1 km storm-relative helicity
50 m²/s²
0-3 km storm-relative helicity
54 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

417 
WFUS53 KIND 121903
TORIND
INC083-121945-
/O.NEW.KIND.TO.W.0076.260812T1903Z-260812T1945Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Indianapolis IN
303 PM EDT Wed Aug 12 2026

The National Weather Service in Indianapolis has issued a

* Tornado Warning for...
  Northeastern Knox County in southwestern Indiana...

* Until 345 PM EDT.

* At 303 PM EDT, a severe thunderstorm capable of producing a tornado
  was located near Russellville, or 9 miles northeast of Vincennes,
  moving east at 30 mph.

  HAZARD...Tornado and ping pong ball size hail.

  SOURCE...Radar indicated rotation.

  IMPACT...Flying debris will be dangerous to those caught without 
           shelter. Mobile homes will be damaged or destroyed. 
           Damage to roofs, windows, and vehicles will occur.  Tree 
           damage is likely.

* Locations impacted include...
  Bicknell, Oaktown, Bruceville, and Edwardsport.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 3887 8749 3886 8722 3882 8724 3880 8724
      3878 8725 3878 8726 3877 8726 3870 8728
      3875 8750
TIME...MOT...LOC 1903Z 277DEG 27KT 3880 8743 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...1.50 IN

$$

BRB
3 follow-up statements
828 
WWUS53 KIND 121908
SVSIND

Severe Weather Statement
National Weather Service Indianapolis IN
308 PM EDT Wed Aug 12 2026

INC083-121945-
/O.CON.KIND.TO.W.0076.000000T0000Z-260812T1945Z/
Knox IN-
308 PM EDT Wed Aug 12 2026

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 345 PM EDT FOR
NORTHEASTERN KNOX COUNTY...

At 308 PM EDT, a confirmed tornado was located near Russellville, or
9 miles northeast of Vincennes, moving east at 15 mph.

HAZARD...Damaging tornado and ping pong ball size hail.

SOURCE...Radar confirmed tornado.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely.

Locations impacted include...
Bicknell, Bruceville, and Edwardsport.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

To repeat, a tornado is on the ground. TAKE COVER NOW! Move to a
basement or an interior room on the lowest floor of a sturdy
building. Avoid windows. If you are outdoors, in a mobile home, or in
a vehicle, move to the closest substantial shelter and protect
yourself from flying debris.

&&

LAT...LON 3875 8749 3886 8745 3884 8723 3882 8724
      3880 8724 3878 8725 3878 8726 3877 8726
      3870 8728
TIME...MOT...LOC 1908Z 289DEG 13KT 3879 8742 

TORNADO...OBSERVED
MAX HAIL SIZE...1.50 IN

$$

BRB
942 
WWUS53 KIND 121914
SVSIND

Severe Weather Statement
National Weather Service Indianapolis IN
314 PM EDT Wed Aug 12 2026

INC083-121945-
/O.CON.KIND.TO.W.0076.000000T0000Z-260812T1945Z/
Knox IN-
314 PM EDT Wed Aug 12 2026

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 345 PM EDT FOR
NORTHEASTERN KNOX COUNTY...

At 313 PM EDT, a confirmed tornado was located 7 miles southeast of
Russellville, or 8 miles northeast of Vincennes, moving southeast at
15 mph.

HAZARD...Damaging tornado and ping pong ball size hail.

SOURCE...Radar confirmed tornado. Emergency management has reported 
         damage. Fire department confirms a tornado. 

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely.

Locations impacted include...
Bicknell, Bruceville, and Edwardsport.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

To repeat, a tornado is on the ground. TAKE COVER NOW! Move to a
basement or an interior room on the lowest floor of a sturdy
building. Avoid windows. If you are outdoors, in a mobile home, or in
a vehicle, move to the closest substantial shelter and protect
yourself from flying debris.

&&

LAT...LON 3884 8746 3881 8724 3880 8724 3878 8725
      3878 8726 3877 8726 3870 8728 3875 8749
TIME...MOT...LOC 1913Z 319DEG 13KT 3877 8741 

TORNADO...OBSERVED
MAX HAIL SIZE...1.50 IN

$$

BRB
518 
WWUS53 KIND 121923
SVSIND

Severe Weather Statement
National Weather Service Indianapolis IN
323 PM EDT Wed Aug 12 2026

INC083-121932-
/O.CAN.KIND.TO.W.0076.000000T0000Z-260812T1945Z/
Knox IN-
323 PM EDT Wed Aug 12 2026

...THE TORNADO WARNING FOR NORTHEASTERN KNOX COUNTY IS CANCELLED...

The storm which prompted the warning is not currently producing a 
tornado. Therefore, the warning has been cancelled.

A Severe Thunderstorm Watch remains in effect until 500 PM EDT for
southwestern Indiana.

LAT...LON 3884 8746 3881 8724 3880 8724 3878 8725
      3878 8726 3877 8726 3870 8728 3875 8749
TIME...MOT...LOC 1920Z 277DEG 27KT 3876 8732 

$$

BRB

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 11, 8:48 PM EDTAreal Flood AdvisoryINDClay, Owen, Parke, Putnam, Vermillion, Vigo2 hr
Aug 11, 8:56 PM EDTSpecial Weather StatementINDPutnam34 min
Aug 11, 9:21 PM EDTSevere Thunderstorm WarningINDHendricks, Morgan, Owen, Putnam39 min
Aug 11, 9:41 PM EDTAreal Flood AdvisoryINDHendricks, Morgan, Owen, Parke, Putnam3 hr
Aug 11, 10:02 PM EDTSpecial Weather StatementINDMorgan43 min
Aug 11, 11:10 PM EDTSpecial Weather StatementINDShelby35 min
Aug 11, 11:13 PM EDTSevere Thunderstorm WarningINDHancock, Johnson, Marion, Shelby32 min
Aug 11, 11:44 PM EDTSpecial Weather StatementINDShelby31 min
Aug 11, 11:55 PM EDTSevere Thunderstorm WarningINDHancock, Rush, Shelby35 min
Aug 12, 12:31 AM EDTAreal Flood AdvisoryINDHancock, Johnson, Marion, Shelby3 hr
Aug 12, 12:41 AM EDTFlash Flood WarningINDShelby12 hr
Aug 12, 12:54 AM EDTAreal Flood AdvisoryINDDecatur, Rush, Shelby117 min
Aug 12, 1:55 AM EDTAreal Flood AdvisoryINDHenry, Rush51 min
Aug 12, 1:56 AM EDTAreal Flood WarningINDDecatur, Jennings, Shelby4 hr
Aug 12, 2:18 AM EDTAreal Flood AdvisoryINDHoward, Madison, Tipton7 hr
Aug 12, 2:31 AM EDTFlash Flood WarningINDDelaware, Henry, Madison3 hr
Aug 12, 2:41 AM EDTAreal Flood AdvisoryINDDelaware, Henry, Randolph3 hr
Aug 12, 2:46 AM EDTFlash Flood WarningINDHenry, Rush3 hr
Aug 12, 2:51 AM EDTFlash Flood WarningINDDecatur, Rush, Shelby3 hr
Aug 12, 3:14 AM EDTFlash Flood WarningINDHenry2 hr
Aug 12, 3:57 AM EDTFlash Flood WarningINDDecatur9 hr
Aug 12, 4:34 AM EDTFlash Flood Warning Considerable damage threatINDHenry, Rush8 hr
Aug 12, 5:24 AM EDTFlash Flood WarningINDDecatur, Rush8 hr
Aug 12, 5:34 AM EDTFlash Flood WarningINDDelaware, Henry, Randolph7 hr
Aug 12, 5:53 AM EDTAreal Flood WarningINDDecatur, Jennings, Shelby2 hr
Aug 12, 6:20 AM EDTRiver Flood WarningINDCarroll, Tippecanoe, White5 days
Aug 12, 6:20 AM EDTRiver Flood WarningINDCarroll, White16 hr
Aug 12, 6:20 AM EDTRiver Flood WarningINDFountain, Parke, Tippecanoe, Vermillion, Warren7 days
Aug 12, 7:26 AM EDTAreal Flood AdvisoryINDHancock, Rush2 hr
Aug 12, 8:11 AM EDTFlash Flood WarningINDDecatur, Jennings, Shelby5 hr
Aug 12, 8:23 AM EDTRiver Flood WarningINDDelaware, Madison4 days
Aug 12, 8:30 AM EDTRiver Flood WarningINDHamilton, Madison6 days
Aug 12, 8:48 AM EDTAreal Flood AdvisoryINDBartholomew, Jennings, Shelby60 min
Aug 12, 9:14 AM EDTAreal Flood WarningINDMadison33 min
Aug 12, 9:47 AM EDTFlash Flood Warning EmergencyINDMadison12 hr
Aug 12, 9:48 AM EDTAreal Flood WarningINDBartholomew, Jennings, Shelby9 hr
Aug 12, 9:49 AM EDTAreal Flood WarningINDHancock, Rush9 hr
Aug 12, 10:17 AM EDTFlash Flood Warning EmergencyCatastrophic damage threatINDDelaware12 hr
Aug 12, 10:26 AM EDTFlash Flood WarningINDHoward, Tipton12 hr
Aug 12, 10:28 AM EDTRiver Flood WarningINDJackson, Jennings, Washington19 hr
Aug 12, 10:28 AM EDTRiver Flood WarningINDShelby4 days
Aug 12, 10:28 AM EDTRiver Flood WarningINDJackson, Lawrence, Washington7 days
Aug 12, 10:28 AM EDTRiver Flood WarningINDBartholomew4 days
Aug 12, 10:28 AM EDTRiver Flood WarningINDBartholomew, Jackson4 days
Aug 12, 10:28 AM EDTRiver Flood WarningINDBartholomew, Johnson, Shelby5 days
Aug 12, 10:42 AM EDTRiver Flood WarningINDHamilton, Marion6 days
Aug 12, 10:42 AM EDTRiver Flood WarningINDMarion, Morgan7 days
Aug 12, 10:42 AM EDTRiver Flood WarningINDMarion, Morgan6 days
Aug 12, 10:46 AM EDTFlash Flood Warning EmergencyCatastrophic damage threatINDHenry12 hr
Aug 12, 10:54 AM EDTRiver Flood WarningINDDelaware, Randolph4 days
Aug 12, 11:29 AM EDTRiver Flood WarningINDFountain, Parke, Vermillion, Warren12 days
Aug 12, 11:29 AM EDTRiver Flood WarningINDParke, Vermillion, Vigo15 days
Aug 12, 11:45 AM EDTSpecial Weather StatementINDFountain, Warren30 min
Aug 12, 12:01 PM EDTSevere Thunderstorm WarningINDFountain, Warren44 min
Aug 12, 12:13 PM EDTSevere Thunderstorm WarningINDBoone, Carroll, Clinton, Howard, Montgomery, Tippecanoe52 min
Aug 12, 12:42 PM EDTSpecial Weather StatementINDParke, Vermillion33 min
Aug 12, 12:47 PM EDTSpecial Weather StatementINDBrown28 min
Aug 12, 12:58 PM EDTFlash Flood Warning Considerable damage threatINDRush11 hr
Aug 12, 12:58 PM EDTFlash Flood Warning Considerable damage threatINDDecatur11 hr
Aug 12, 12:58 PM EDTFlash Flood Warning Considerable damage threatINDRandolph11 hr
Aug 12, 12:58 PM EDTFlash Flood WarningINDShelby7 hr
Aug 12, 12:58 PM EDTFlash Flood WarningINDHancock7 hr
Aug 12, 12:59 PM EDTAreal Flood WarningINDBartholomew, Jennings3 hr
Aug 12, 1:00 PM EDTSpecial Weather StatementINDBoone, Hamilton30 min
Aug 12, 1:02 PM EDTFlash Flood WarningINDBoone, Hamilton7 hr
Aug 12, 1:02 PM EDTSpecial Weather StatementINDHoward, Tipton28 min
Aug 12, 1:11 PM EDTSpecial Weather StatementINDParke34 min
Aug 12, 1:20 PM EDTFlash Flood WarningINDHendricks, Marion7 hr
Aug 12, 1:28 PM EDTSpecial Weather StatementINDPutnam32 min
Aug 12, 1:31 PM EDTSpecial Weather StatementINDVigo29 min
Aug 12, 1:39 PM EDTSevere Thunderstorm WarningINDHendricks, Johnson, Marion, Morgan, Putnam36 min
Aug 12, 2:04 PM EDTSpecial Weather StatementINDJohnson, Rush, Shelby26 min
Aug 12, 2:09 PM EDTRiver Flood WarningINDHoward4 days
Aug 12, 2:09 PM EDTSpecial Weather StatementINDClay, Sullivan, Vigo36 min
Aug 12, 2:11 PM EDTFlash Flood WarningINDJohnson5 hr
Aug 12, 2:17 PM EDTSevere Thunderstorm WarningINDDecatur, Johnson, Rush, Shelby58 min
Aug 12, 2:28 PM EDTFlash Flood WarningINDBartholomew6 hr
Aug 12, 2:30 PM EDTSpecial Weather StatementINDBartholomew, Brown, Decatur30 min
Aug 12, 2:35 PM EDTSevere Thunderstorm WarningINDDaviess, Greene, Knox, Sullivan40 min
Aug 12, 2:42 PM EDTRiver Flood WarningINDCarroll, Howard4 days

Nearby

Tornado Warnings in Indiana, 2026Every tornado warning in 2026Tornadoes 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.