Alert archive / Indiana / Tornado Warnings in 2026

Tornado Warning 41, NWS Northern Indiana

July 27, 2026Blackford County, Grant County, Indiana

NWS Northern Indiana issued this tornado warning at Jul 27, 2026, 4:36 PM EDT for Blackford County, Grant County, Indiana. It was in force for 39 min. 25 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
Jul 27, 2026, 4:36 PM EDT (20:36 UTC)
Expired
Jul 27, 2026, 5:15 PM EDT
In force
39 min
Issued by
NWS Northern Indiana
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.75 in

Counties Blackford County, IN, Grant County, IN

The radar

The Northern Indiana radar (KIWX), 97 km from the middle of the area, began a volume at 20:37 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.

What was reported inside it

TimeReportWhereRemark
Jul 27, 4:40 PM EDTFUNNEL CLOUDHome Corner, INSeveral reports of trees down in and around Home Corner between East 32nd Street and East 38th Street. Time estimated via radar.
Jul 27, 4:40 PM EDTTSTM WND DMG1 E Sweetser, INVideo showing minor roof damage and several trees down at Colonial Crest Apartments between Sweetser and Marion. Time estimated via radar.
Jul 27, 4:40 PM EDTTSTM WND DMG1 S Home Corner, INTree down on South Adams Street between Marion and Gas City.
Jul 27, 4:40 PM EDTTSTM WND DMG1 S Marion, INTree down at West 28th Street and South Nebraska Street. Small tree limbs also in the road. Time estimated via radar.
Jul 27, 4:40 PM EDTTSTM WND DMG1 Ssw Marion, INTree down on South Western Avenue behind Culvers. Time estimated via radar.
Jul 27, 4:40 PM EDTTSTM WND DMG1 Sw Home Corner, INSeveral trees down at the intersection of East 48th Street and Meridian. Time estimated via radar.
Jul 27, 4:40 PM EDTTSTM WND DMG1 W Marion, INPhotos on Facebook posted by the homeowner showing several large trees and tree limbs down onto a home on South Fairfield Drive. No injuries. Time estimated via radar.
Jul 27, 4:40 PM EDTTSTM WND DMG1 Wsw Home Corner, INBroadcast media shared several trees down around the Indiana Wesleyan campus on the south side of Marion. Time estimated via radar.
Jul 27, 4:40 PM EDTTSTM WND DMG2 Sw Home Corner, INSeveral trees down on West 54th Street. Time estimated via radar.
Jul 27, 4:40 PM EDTTSTM WND DMG2 W Marion, INPhoto on Facebook showing several large trees have tops sheared off at 10th Street and South Virginia Avenue. Time estimated via radar.
Jul 27, 4:40 PM EDTTSTM WND DMG2 W Marion, INTrees down at West 12th Street and South Michigan Avenue. Time estimated via radar.
Jul 27, 4:40 PM EDTTSTM WND DMG2 Wnw Jonesboro, INTrees and powerlines down near the Marian Municipal Airport.
Jul 27, 4:40 PM EDTTSTM WND DMGHome Corner, INCorrects the report type from Home Corner. Several reports of trees down in and around Home Corner between East 32nd Street and East 38th Street. Time estimated via radar.
Jul 27, 4:40 PM EDTTSTM WND DMGJonesboro, INTrees and powerlines down in Jonesboro. Time estimated via radar.
Jul 27, 4:40 PM EDTTSTM WND DMGSweetser, INSeveral trees snapped in Sweetser. Time estimated via radar.
Jul 27, 4:40 PM EDTTSTM WND GST 60Marion, INEstimated wind gusts of 60 mph in Marion. Time estimated via radar.
Jul 27, 4:45 PM EDTFUNNEL CLOUD2 Wnw Upland, INReport of a possible funnel cloud on S 700 E. Time estimated to be around 4:45 PM EDT.
Jul 27, 4:45 PM EDTFUNNEL CLOUDGas City, INBroadcast media shared an INDOT camera view at the I-69 259.1 mile marker facing west towards Gas City showing what appears to be a rotating funnel cloud. Time on video is 4:45 PM EDT.
Jul 27, 4:45 PM EDTTSTM WND DMG1 S Home Corner, INTrees down blocking SR 15 between Marion and Gas City. Time estimated via radar.
Jul 27, 4:45 PM EDTTSTM WND DMG1 S Marion, INCorrects time of previous tstm wnd dmg report from 1 S Marion. Trees downed on south side of Marion, IN. Time estimated from radar.
Jul 27, 4:50 PM EDTTSTM WND DMG1 Ssw Lake Wood, INMetal roof taken off of a barn at 100S and 500E inGrant County. Time estimated via radar.
Jul 27, 4:50 PM EDTTSTM WND DMGGas City, INPhoto on Facebook of a large tree snapped on the north side of Gas City. Time estimated via radar.
Jul 27, 4:51 PM EDTTSTM WND GST 504 Ene Upland, IN1 to 2 in limbs down. Time estimated by radar.
Jul 27, 4:55 PM EDTTSTM WND GST 512 Nne Michaelsville, INAWOS station KMZZ Grant County Municipal Apt.
Jul 27, 5:05 PM EDTTSTM WND DMGHartford City, INPhoto on Facebook of a very large tree down onto a home in Hartford City. No known injuries. Time estimated via radar.

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

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this tornado warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The watch it was issued in

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

IssuedProductOfficeLasted
Jul 27, 12:42 PM EDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 12:00Z, 8.6 hours before the alert went out and 191 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, Cncnati-Daytn, OH at 12:00Z on 2026-07-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 423 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Cncnati-Daytn, OH at 12:00Z on 2026-07-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 1 square meters per square second.193958Sfc1 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
423 J/kg
Mixed-layer CIN
-154 J/kg
Mixed-layer LCL
937 m above ground
0-6 km bulk shear
40 kt
0-1 km storm-relative helicity
1 m²/s²
0-3 km storm-relative helicity
111 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.4

Open this sounding in Storm Lab

The text

As transmitted.

121 
WFUS53 KIWX 272036
TORIWX
INC009-053-272115-
/O.NEW.KIWX.TO.W.0041.260727T2036Z-260727T2115Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Northern Indiana
436 PM EDT Mon Jul 27 2026

The National Weather Service in Northern Indiana has issued a

* Tornado Warning for...
  Central Grant County in central Indiana...
  Blackford County in east central Indiana...

* Until 515 PM EDT.

* At 436 PM EDT, a severe thunderstorm capable of producing a tornado
  was located over Marion, moving southeast at 40 mph.

  HAZARD...Tornado.

  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.

* This dangerous storm will be near...
  Marion, Gas City, and Jonesboro around 440 PM EDT.
  Upland around 450 PM EDT.
  Hartford City around 500 PM EDT.

Other locations impacted by this tornadic thunderstorm include
Shamrock Lakes, Home Corner, Roseburg, Trenton, Roll, Arcana, Lake
Wood, Mill Grove, Herbst, and Fowlerton.

This includes Interstate 69 in Indiana between mile markers 254 and
266.
 
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 4053 8582 4062 8577 4052 8520 4038 8521
      4038 8551
TIME...MOT...LOC 2036Z 294DEG 33KT 4056 8571 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...<.75 IN

$$

CLH
2 follow-up statements
519 
WWUS53 KIWX 272053
SVSIWX

Severe Weather Statement
National Weather Service Northern Indiana
453 PM EDT Mon Jul 27 2026

INC009-053-272115-
/O.CON.KIWX.TO.W.0041.000000T0000Z-260727T2115Z/
Grant IN-Blackford IN-
453 PM EDT Mon Jul 27 2026

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 515 PM EDT FOR
SOUTHEASTERN GRANT AND BLACKFORD COUNTIES...

At 452 PM EDT, a severe thunderstorm capable of producing a tornado
was located over Upland, moving southeast at 45 mph.

HAZARD...Tornado.

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.

This dangerous storm will be near...
  Hartford City around 500 PM EDT.

Other locations impacted by this tornadic thunderstorm include
Shamrock Lakes, Trenton, Roll, Arcana, Fowlerton, and Mill Grove.

This includes Interstate 69 in Indiana between mile markers 254 and
264.
 
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 4043 8562 4058 8554 4052 8520 4038 8521
      4038 8551
TIME...MOT...LOC 2052Z 295DEG 39KT 4047 8547 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...<.75 IN

$$

CLH
776 
WWUS53 KIWX 272110
SVSIWX

Severe Weather Statement
National Weather Service Northern Indiana
510 PM EDT Mon Jul 27 2026

INC009-053-272120-
/O.EXP.KIWX.TO.W.0041.000000T0000Z-260727T2115Z/
Grant IN-Blackford IN-
510 PM EDT Mon Jul 27 2026

...THE TORNADO WARNING FOR SOUTHEASTERN GRANT AND BLACKFORD COUNTIES
WILL EXPIRE AT 515 PM EDT...

The storm which prompted the warning has weakened, and no longer 
appears capable of producing a tornado.
Therefore, the warning will be allowed to expire.

A Severe Thunderstorm Watch remains in effect until 800 PM EDT for
central and east central Indiana.

To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
Northern Indiana.

Remember, a Severe Thunderstorm Warning still remains in effect for 
the same area. 

&&

LAT...LON 4043 8562 4058 8554 4052 8520 4038 8521
      4038 8551
TIME...MOT...LOC 2110Z 294DEG 33KT 4041 8530 

$$

CLH

What forecasters said that day

The local office's own words before this tornado 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 tornado warning went out at Jul 27, 2:59 PM EDT, 1 hour 37 minutes earlier. Its key messages:

  • There is an Enhanced Risk for severe weather today. Clusters of strong to severe storms are expected this afternoon and evening. The greatest severe weather threat is expected from 2pm to 10pm EDT.
  • Damaging wind gusts of in excess of 70 mph are expected to be the main threat, with a few gusts as high as 80 mph possible. Isolated large hail to 1 to 2 inches in diameter is also possible across southwest Lower Michigan and northwest Indiana this afternoon. Isolated tornadoes are also possible.
  • Dry and seasonable Tuesday through Thursday.
  • High Swim Risk Tuesday for southeast Lake Michigan beaches.
Area forecast discussion, Jul 27, 2:59 PM EDT, 1 hour 37 minutes before
Area Forecast Discussion
National Weather Service Northern Indiana
259 PM EDT Mon Jul 27 2026

.KEY MESSAGES...

- There is an Enhanced Risk for severe weather today. Clusters
  of strong to severe storms are expected this afternoon and
  evening. The greatest severe weather threat is expected from
  2pm to 10pm EDT.

- Damaging wind gusts of in excess of 70 mph are expected to be
  the main threat, with a few gusts as high as 80 mph possible.
  Isolated large hail to 1 to 2 inches in diameter is also
  possible across southwest Lower Michigan and northwest Indiana
  this afternoon. Isolated tornadoes are also possible.

- Dry and seasonable Tuesday through Thursday.

- High Swim Risk Tuesday for southeast Lake Michigan beaches.

&&

.DISCUSSION...
Issued at 255 PM EDT Mon Jul 27 2026

The main forecast concern will be on the severe weather potential
through this evening.

A complicated convective scenario is unfolding across the Great
Lakes region this afternoon. Preferred region of convective
development has been across northeast Illinois along a corridor
of low level warm/moist advection. This forcing is coincident
with strengthening upper low level flow and effective shear
profiles. Extreme instability with MLCAPES 4-5k J/kg CAPES is
situated across northeast Indiana with sharp eastward
diminishment in instability across northeast Indiana/northwest
Ohio. Cells across northeast Illinois are favoring strong cold
pools with signatures of very strong base velocity shifting
southeast across far northwest Indiana. The combination of
shallow low level southwest flow and deeper northwesterly flow
in the mid/upper levels is favor some north to south preference
in propagation vectors with the storms across northeast
Illinois. Areas west of US Route 31 across northeast Indiana
should stand greatest risk of seeing higher end thunderstorm
wind gusts (80+ mph) as the storms across NE Illinois drop
southeast. In addition to the risk of higher end damaging wind
gusts, the extreme instability will support some isolated large
hail of 1 to 2 inches in diameter. Also, the aforementioned
background shear profiles will continue to support some embedded
supercell structures with a risk of isolated tornadoes. 0-3km
shear vectors oriented from the northwest at around 30 knots
could also support a few QLCS tornado spinups where any rear
inflow jet can orient in a NW to SE fashion and where more
mature cold pools develop.

Additional storms are expected to develop across the Great Lakes
region this evening as low level front pushes southward with an
additional risk of scattered damaging wind gusts through around 02Z.
Confidence in severe gusts after 00Z does diminish somewhat however.

By Tuesday morning, the nose of the upper level jet streak will
reach the Mid Atlantic states with lagging sfc trough/cool front
expected to extend from western PA to southern Illinois. Passage of
this front will lead quieter weather conditions through the middle
of the week with temperatures/dew points closer to seasonable levels.

The next system to watch will be toward end of the work as the
potential exists for synoptic wave to become convectively enhanced
across the Dakotas. Some question exists as to instability
magnitudes as far east as southern Great Lakes/Ohio Valley with this
system with some indications of this system becoming more vertically
stacked in nature well to the west.

&&

.AVIATION /18Z TAFS THROUGH 18Z TUESDAY/...
Issued at 1245 PM EDT Mon Jul 27 2026

Cluster of thunderstorms from MKE south through ORD are the
primary item of focus for this TAF period. Rather high
confidence in storms persisting through KSBN, and perhaps a
tinge of uncertainty toward KFWA. For now, the environment is
highly supportive of sustained convection.

Behind these thunderstorms, northerly flow eventually brings an
area of stratus down behind a thermal trough descending through
Michigan prior to sunrise. As always, it is uncertain how long
stratus will persist into Tuesday.

&&

.IWX WATCHES/WARNINGS/ADVISORIES...
IN...Heat Advisory until 6 PM EDT /5 PM CDT/ this evening for
     INZ012-013-020-103-203.
     Beach Hazards Statement from late tonight through Wednesday
     morning for INZ103.
OH...None.
MI...Beach Hazards Statement from late tonight through Wednesday
     morning for MIZ177-277.
MARINE...Small Craft Advisory from 2 AM Tuesday to 2 AM EDT Wednesday
     for LMZ043-046.

&&

DISCUSSION...Marsili
AVIATION...Brown

In the hours before

Local storm report, Jul 27, 4:16 PM EDT, 20 minutes before
Preliminary Local Storm Report
National Weather Service Northern Indiana
416 PM EDT Mon Jul 27 2026

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

0331 PM     Tstm Wnd Dmg     2 NW Twin Lakes         41.33N 86.39W
07/27/2026                   Marshall           IN   Public

            Time estimated by radar.

&&

CR
Local storm report, Jul 27, 4:20 PM EDT, 16 minutes before
Preliminary Local Storm Report
National Weather Service Northern Indiana
420 PM EDT Mon Jul 27 2026

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

0330 PM     Tstm Wnd Dmg     2 ENE Oak Grove         41.30N 86.45W
07/27/2026                   Marshall           IN   Emergency Mngr

            Tree down across roadway.

&&

CR
Local storm report, Jul 27, 4:22 PM EDT, 14 minutes before
Preliminary Local Storm Report
National Weather Service Northern Indiana
422 PM EDT Mon Jul 27 2026

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

0335 PM     Tstm Wnd Dmg     Argos                   41.23N 86.25W
07/27/2026                   Marshall           IN   Emergency Mngr

            Siding ripped off of house. Time estimated
            by radar.

&&

CR
Local storm report, Jul 27, 4:24 PM EDT, 12 minutes before
Preliminary Local Storm Report
National Weather Service Northern Indiana
424 PM EDT Mon Jul 27 2026

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

0414 PM     Tstm Wnd Gst     2 S Grissom Afb         40.63N 86.15W
07/27/2026  M60 MPH          Miami              IN   AWOS

            AWOS station KGUS Grissom AFB Peru.

&&

CR
Local storm report, Jul 27, 4:29 PM EDT, 7 minutes before
Preliminary Local Storm Report
National Weather Service Northern Indiana
429 PM EDT Mon Jul 27 2026

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

0324 PM     Tstm Wnd Dmg     1 S Donaldson           41.35N 86.44W
07/27/2026                   Marshall           IN   Broadcast Media

            Media report of a large diameter tree
            knocked over by thunderstorm winds just
            south of Donaldson in Marshall County
            Indiana. Time radar estimated.

&&

JA
Local storm report, Jul 27, 4:31 PM EDT, 5 minutes before
Preliminary Local Storm Report
National Weather Service Northern Indiana
431 PM EDT Mon Jul 27 2026

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

0418 PM     Tstm Wnd Dmg     1 SSE Galveston         40.56N 86.18W
07/27/2026                   Cass               IN   Emergency Mngr

            Powerlines down.

&&

CR

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 27, 3:46 AM EDTBeach Hazards StatementIWXLaPorte50 hr
Jul 27, 3:48 AM EDTSmall Craft AdvisoryIWX50 hr
Jul 27, 6:50 AM EDTDense Fog AdvisoryIWXFulton, LaPorte, Marshall, Pulaski, Starke, White2 hr
Jul 27, 10:52 AM EDTHeat AdvisoryIWXLaPorte, Pulaski, Starke, White6 hr
Jul 27, 1:16 PM EDTSpecial Marine WarningIWX119 min
Jul 27, 2:34 PM EDTSevere Thunderstorm WarningIWXLaPorte, Saint Joseph26 min
Jul 27, 2:37 PM EDTSevere Thunderstorm Warning Destructive damage threatIWXLaPorte, Pulaski, Starke23 min
Jul 27, 2:56 PM EDTSevere Thunderstorm WarningIWXLaPorte, Marshall, Saint Joseph49 min
Jul 27, 2:59 PM EDTSevere Thunderstorm Warning Considerable damage threatIWXCass, Fulton, LaPorte, Marshall, Pulaski, Starke and 1 more46 min
Jul 27, 3:16 PM EDTTornado WarningIWXLaPorte, Marshall, Saint Joseph, Starke44 min
Jul 27, 3:43 PM EDTSevere Thunderstorm WarningIWXElkhart, Kosciusko, Marshall, Saint Joseph32 min
Jul 27, 3:55 PM EDTSpecial Marine WarningIWX95 min
Jul 27, 4:23 PM EDTSevere Thunderstorm WarningIWXCass, Grant, Huntington, Miami, Wabash52 min
Jul 27, 4:24 PM EDTAreal Flood AdvisoryIWXLaPorte, Marshall, Saint Joseph3 hr
Jul 27, 4:48 PM EDTSevere Thunderstorm WarningIWXAdams, Blackford, Grant, Huntington, Jay, Wells42 min
Jul 27, 5:26 PM EDTSevere Thunderstorm WarningIWXLaPorte49 min
Jul 27, 6:06 PM EDTSevere Thunderstorm WarningIWXLaPorte, Pulaski, Starke39 min

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.