Alert archive / Indiana / Severe Thunderstorm Warnings in 2026
Severe Thunderstorm Warning 260, NWS Indianapolis, IN
NWS Indianapolis, IN issued this severe thunderstorm warning at Jul 27, 2026, 7:51 PM EDT for Fountain County, Vermillion County, Warren County, Indiana. It was in force for 54 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
- Jul 27, 2026, 7:51 PM EDT (23:51 UTC)
- Expired
- Jul 27, 2026, 8:45 PM EDT
- In force
- 54 min
- Issued by
- NWS Indianapolis, IN
- Area
- Storm-based polygon
- Tornado
- Possible
- Damage threat
- Considerable
- Hail
- 1.75 in
- Wind
- 60.0 mph
Counties Fountain County, IN, Vermillion County, IN, Warren County, IN
The radar
The Indianapolis radar (KIND), 102 km from the middle of the area, began a volume at 23:50 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 |
|---|---|---|---|
| Jul 27, 2:39 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
The nearest sounding before it
Lincoln, IL (KILX), launched 12:00Z, 11.9 hours before the alert went out and 106 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
- 3689 J/kg
- Mixed-layer CIN
- -49 J/kg
- Mixed-layer LCL
- 801 m above ground
- 0-6 km bulk shear
- 43 kt
- 0-1 km storm-relative helicity
- 127 m²/s²
- 0-3 km storm-relative helicity
- 158 m²/s²
- Significant tornado parameter
- 0.7
- Supercell composite
- 4.1
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 Jul 27, 7:02 PM EDT, 49 minutes earlier. Its key messages:
- SEVERE THUNDERSTORM WATCH for Much of Central Indiana UNTIL 9PM
- HEAT ADVISORY UNTIL 9PM
- Thunderstorms this afternoon and evening with severe weather likely. Damaging winds are the primary hazard. Secondary hazards of large hail, tornadoes, and flooding also possible.
- Rain free Tuesday-Thursday amid near to slightly below normal temperatures/humidity...with northerly breezes Tuesday, Wednesday
Area forecast discussion, Jul 27, 7:02 PM EDT, 49 minutes before
Area Forecast Discussion National Weather Service Indianapolis IN 702 PM EDT Mon Jul 27 2026 .KEY MESSAGES... - SEVERE THUNDERSTORM WATCH for Much of Central Indiana UNTIL 9PM - HEAT ADVISORY UNTIL 9PM - Thunderstorms this afternoon and evening with severe weather likely. Damaging winds are the primary hazard. Secondary hazards of large hail, tornadoes, and flooding also possible. - Rain free Tuesday-Thursday amid near to slightly below normal temperatures/humidity...with northerly breezes Tuesday, Wednesday && .DISCUSSION (This evening through Monday)... Issued at 256 PM EDT Mon Jul 27 2026 Satellite and radar imagery shows a large complex of showers and thunderstorms over the Chicago area as of 2pm. This cluster of storms is likely going to impact our area to some extent this afternoon and evening. At the surface, a distinct axis of greater instability (3000-4000 J/Kg MLCAPE) extends NW to SE through most of central Indiana. Surface winds are generally southwesterly to the west of this boundary. Along it, light and variable conditions are noted. To the east, a southeasterly wind is observed. Aloft, strong southeasterly shear between 45-55kt extends over most of Illinois, Indiana and Ohio. This mean shear vector is almost exactly parallel to the instability axis. Further to the north, a potent mid-level vort max is shown which was the catalyst to ongoing convection. Now that storms have initiated, the immediate mesoscale concern is how storms evolve coming into our CWA in the next few hours. One scenario is that the storms develop a strong cold pool and begin propagating southeastward along the instability axis. This is plausible since the shear vector points southeastward along this axis, and cold pool shear balance will be easier to achieve. In this scenario, severe winds will be the primary hazard. However, embedded supercells, as have been seen over Chicago this afternoon, would be capable of all hazards including large hail and tornadoes. Additionally, a QLCS tornado threat may develop if the low-level jet ramps up significantly this evening. A second scenario is similar to the one above, but the low-level jet ramps up a bit earlier and storms propagate more southward owing to greater upshear growth. This would send the storm cluster over our western CWA with similar hazards to scenario one. All in all, the main difference is timing and influence from the low-level jet. Guidance shows the low-level jet increasing substantially around 02z to between 30-40kt at 925mb. However, the storms may already be through our area by that point. Renewed development on the western edge could occur if a residual cold pool lingers over the area. Flooding could occur if storms begin redeveloping over the same areas as the initial round of activity. After tonight, the vort max and associated surface low depart eastward with a cold front sweeping through by dawn. Northern winds usher in cooler and drier air with temperatures falling towards normal for the remainder of the week. Another vort max may arrive this weekend, embedded within weak westerlies aloft, bringing precipitation chances back by Friday. Given the weak flow and likewise weak vort max it would seem prudent to keep precipitation chances capped at chance (40 percent). Model uncertainty is high, and such weak/subtle features can be hard to pin point this far out. && .AVIATION (00Z TAF Issuance)... Issued at 702 PM EDT Mon Jul 27 2026 Impacts: - Strong to severe thunderstorms possible through 04Z. - Potential for fog or low ceilings near daybreak Tuesday. Discussion: Radar shows convection pushing across Central Indiana poised reach BMG within the next hour. Favorable set-up remains for ongoing convection especially at the TAF sites as they remain within a very moist airmass as a weak surface trough passes. HRRR continues to suggest southward propagation with best set-up for additional storms over western and southern Indiana which has not been too significantly impacted as of yet and continues to have the best instability in place. After 04-06Z, best forcing and instability will be be lost and convection will end. Forecast soundings show the arrival of subsidence and HRRR shows diminishing and ending convection early overnight. Other than the possibility of some morning fog, a return the VFR is expected on Tuesday as the column is expected to remain unsaturated. && .IND WATCHES/WARNINGS/ADVISORIES... Heat Advisory until 9 PM EDT this evening for INZ021-028>030- 035>037-039-043>048-051>056-060>064-067>071. && AVIATION...Puma DISCUSSION...Eckhoff
Hazardous weather outlook, Jul 27, 3:13 PM EDT, 4 hours 38 minutes before
Hazardous Weather Outlook National Weather Service Indianapolis IN 313 PM EDT Mon Jul 27 2026 INZ021-028>030-035>037-039-043>048-051>056-060>064-067>071-281915- Carroll-Warren-Tippecanoe-Clinton-Fountain-Montgomery-Boone-Hamilton- Vermillion-Parke-Putnam-Hendricks-Marion-Hancock-Vigo-Clay-Owen- Morgan-Johnson-Shelby-Sullivan-Greene-Monroe-Brown-Bartholomew-Knox- Daviess-Martin-Lawrence-Jackson- 313 PM EDT Mon Jul 27 2026 This hazardous weather outlook is for central Indiana. .DAY ONE...Through Tonight. Thunderstorms are possible this afternoon through tonight. Some of these storms could be severe with damaging wind gusts and localized flooding as the primary hazards. Heat index values are expected to exceed 100 this afternoon .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Thunderstorms are possible at times this weekend. .SPOTTER INFORMATION STATEMENT... Spotters are encouraged to monitor the forecast through tonight as activation may be needed at times. && More information, along with other weather, hydrological and climate information can be found at http://weather.gov/ind INZ031-038-040>042-049-057-065-072-281915- Howard-Tipton-Madison-Delaware-Randolph-Henry-Rush-Decatur-Jennings- 313 PM EDT Mon Jul 27 2026 This hazardous weather outlook is for central Indiana. .DAY ONE...Through Tonight. Thunderstorms are possible this afternoon through tonight. Some of these storms could be severe with damaging wind gusts and localized flooding as the primary hazards. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Thunderstorms are possible at times this weekend. .SPOTTER INFORMATION STATEMENT... Spotters are encouraged to monitor the forecast through tonight as activation may be needed at times. && More information, along with other weather, hydrological and climate information can be found at http://weather.gov/ind
In the hours before
Special weather statement, Jul 27, 3:38 PM EDT, 4 hours 13 minutes before
Special Weather Statement
National Weather Service Indianapolis IN
338 PM EDT Mon Jul 27 2026
INZ021-272045-
Carroll IN-
338 PM EDT Mon Jul 27 2026
...Strong thunderstorms will impact portions of Carroll County
through 445 PM EDT...
At 338 PM EDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Royal Center to near Monticello. Movement
was southeast at 40 mph.
HAZARD...Wind gusts up to 50 mph.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects.
Locations impacted include...
Delphi, Flora, Camden, and Yeoman.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
A Severe Thunderstorm Watch remains in effect until 900 PM EDT for
north central and west central Indiana.
&&
LAT...LON 4074 8653 4069 8652 4069 8637 4051 8638
4046 8658 4054 8670 4056 8670 4056 8672
4060 8677 4066 8677 4067 8675 4068 8674
4068 8676 4069 8675 4070 8676 4072 8675
4074 8675
TIME...MOT...LOC 1938Z 299DEG 33KT 4087 8643 4077 8686
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...50 MPH
MESpecial weather statement, Jul 27, 4:05 PM EDT, 3 hours 46 minutes before
Special Weather Statement
National Weather Service Indianapolis IN
405 PM EDT Mon Jul 27 2026
INZ021-030-031-038-272100-
Howard IN-Clinton IN-Tipton IN-Carroll IN-
405 PM EDT Mon Jul 27 2026
...Strong thunderstorms will impact portions of eastern Carroll,
northeastern Clinton, Howard and northern Tipton Counties through 500
PM EDT...
At 405 PM EDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Walton to 7 miles south of Logansport to
12 miles east of Delphi. Movement was southeast at 35 mph.
HAZARD...Wind gusts of 50 to 55 mph.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects.
Locations impacted include...
Kokomo, Windfall, Greentown, Russiaville, Sharpsville, Burlington,
and Indian Heights.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
A Severe Thunderstorm Watch remains in effect until 900 PM EDT for
central and north central Indiana.
&&
LAT...LON 4056 8637 4057 8587 4037 8586 4033 8638
4068 8654 4069 8651 4069 8637
TIME...MOT...LOC 2005Z 330DEG 30KT 4071 8627 4064 8634 4061 8642
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...55 MPH
MELocal storm report, Jul 27, 4:41 PM EDT, 3 hours 10 minutes before
Preliminary Local Storm Report
National Weather Service Indianapolis IN
441 PM EDT Mon Jul 27 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0430 PM Tstm Wnd Dmg 5 NNE Russiaville 40.48N 86.22W
07/27/2026 Howard IN Emergency Mngr
Trees downed in multiple locations in Howard
county. Time estimated from radar.
&&
NIELDLocal storm report, Jul 27, 5:40 PM EDT, 2 hours 11 minutes before
Preliminary Local Storm Report
National Weather Service Indianapolis IN
540 PM EDT Mon Jul 27 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0510 PM Tstm Wnd Dmg Alexandria 40.26N 85.68W
07/27/2026 Madison IN NWS Storm Survey
Trees, power poles and power lines downed
across the northern part of Madison County.
0430 PM Tstm Wnd Dmg Kokomo 40.48N 86.13W
07/27/2026 Howard IN Emergency Mngr
Trees down across Howard County.
0518 PM Tstm Wnd Gst Muncie 40.20N 85.39W
07/27/2026 M58 MPH Delaware IN Official NWS Obs
&&Local storm report, Jul 27, 7:42 PM EDT, 9 minutes before
Preliminary Local Storm Report
National Weather Service Indianapolis IN
742 PM EDT Mon Jul 27 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0639 PM Flash Flood 2 ESE Indianapolis 39.77N 86.12W
07/27/2026 Marion IN Public
From Citizen App: Two cars stuck under
flooded overpass at E Washington and S Rural
Street. Firefighters repsonded and blocked
the area to prevent further incidents.
&&The office that day
Everything else NWS Indianapolis, IN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 26, 10:26 PM EDT | Special Weather Statement | IND | Knox | 34 min |
| Jul 26, 10:44 PM EDT | Severe Thunderstorm Warning | IND | Knox | 31 min |
| Jul 26, 11:03 PM EDT | Severe Thunderstorm Warning | IND | Knox | 27 min |
| Jul 27, 3:10 AM EDT | Heat Advisory | IND | Bartholomew, Boone, Brown, Carroll, Clay, Clinton and 24 more | 17 hr |
| Jul 27, 3:38 PM EDT | Special Weather Statement | IND | Carroll | 67 min |
| Jul 27, 4:05 PM EDT | Special Weather Statement | IND | Howard | 55 min |
| Jul 27, 4:17 PM EDT | Severe Thunderstorm Warning | IND | Carroll, Clinton, Howard, Tipton | 58 min |
| Jul 27, 4:39 PM EDT | Severe Thunderstorm Warning | IND | Boone, Clinton, Hamilton, Tipton | 66 min |
| Jul 27, 4:43 PM EDT | Severe Thunderstorm Warning | IND | Delaware, Madison | 77 min |
| Jul 27, 5:02 PM EDT | Severe Thunderstorm Warning | IND | Randolph | 58 min |
| Jul 27, 5:17 PM EDT | Severe Thunderstorm Warning | IND | Boone, Hamilton | 58 min |
| Jul 27, 5:25 PM EDT | Severe Thunderstorm Warning | IND | Henry | 50 min |
| Jul 27, 5:28 PM EDT | Flash Flood Warning | IND | Boone, Clinton, Delaware, Hamilton, Henry, Madison and 1 more | 5 hr |
| Jul 27, 5:39 PM EDT | Severe Thunderstorm Warning | IND | Hendricks, Marion | 66 min |
| Jul 27, 5:55 PM EDT | Flash Flood Warning | IND | Hancock, Hendricks, Marion | 5 hr |
| Jul 27, 6:12 PM EDT | Severe Thunderstorm Warning | IND | Hancock, Hendricks, Johnson, Marion, Morgan, Shelby | 63 min |
| Jul 27, 6:26 PM EDT | Areal Flood Advisory | IND | Hancock, Hendricks, Johnson, Marion, Morgan, Shelby | 4 hr |
| Jul 27, 6:50 PM EDT | Areal Flood Advisory | IND | Shelby | 3 hr |
| Jul 27, 6:58 PM EDT | Severe Thunderstorm Warning | IND | Bartholomew, Brown, Decatur, Johnson, Morgan, Shelby | 62 min |
| Jul 27, 7:13 PM EDT | Severe Thunderstorm Warning | IND | Warren | 62 min |
| Jul 27, 7:36 PM EDT | Severe Thunderstorm Warning | IND | Sullivan, Vigo | 54 min |
| Jul 27, 7:40 PM EDT | Severe Thunderstorm Warning | IND | Bartholomew, Brown, Decatur, Jackson, Jennings | 53 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.