Alert archive / Indiana / Severe Thunderstorm Warnings in 2026

Severe Thunderstorm Warning 113, NWS Indianapolis, IN

April 27, 20264 counties in Indiana

NWS Indianapolis, IN issued this severe thunderstorm warning at Apr 27, 2026, 2:19 PM EDT for 4 counties in Indiana. It was in force for 29 min. 1 report 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
Apr 27, 2026, 2:19 PM EDT (18:19 UTC)
Expired
Apr 27, 2026, 2:48 PM EDT
In force
29 min
Issued by
NWS Indianapolis, IN
Area
Storm-based polygon
Hail
1.0 in
Wind
50.0 mph

Counties Daviess County, IN, Greene County, IN, Knox County, IN, Martin County, IN

The radar

The Evansville,IN radar (KVWX), 100 km from the middle of the area, began a volume at 18:21 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
Apr 27, 2:28 PM EDTHAIL 1Elnora, IN

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

Did it verify

Verified. The Iowa Environmental Mesonet's Cow matched one storm report to this severe thunderstorm warning; the first came 9 minutes after it went out.

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
Apr 27, 12:12 PM EDTSevere Thunderstorm WatchSPC8 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 6.3 hours before the alert went out and 192 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 2026-04-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Lincoln, IL at 12:00Z on 2026-04-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 104 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1053 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
104 m²/s²
0-3 km storm-relative helicity
306 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

574 
WUUS53 KIND 271819
SVRIND
INC027-055-083-101-271900-
/O.NEW.KIND.SV.W.0113.260427T1819Z-260427T1900Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Indianapolis IN
219 PM EDT Mon Apr 27 2026

The National Weather Service in Indianapolis has issued a

* Severe Thunderstorm Warning for...
  Northeastern Knox County in southwestern Indiana...
  Northwestern Martin County in southwestern Indiana...
  Southeastern Greene County in southwestern Indiana...
  Northern Daviess County in southwestern Indiana...

* Until 300 PM EDT.

* At 219 PM EDT, a severe thunderstorm was located 10 miles north of
  Washington, or 18 miles northeast of Vincennes, moving northeast at
  45 mph.

  HAZARD...Quarter size hail.

  SOURCE...Radar indicated.

  IMPACT...Damage to vehicles is expected.

* Locations impacted include...
  Bloomfield, Bicknell, Odon, Lyons, Elnora, Plainville, Sandborn,
  Edwardsport, Newberry, Crane, Solsberry, and Owensburg.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3882 8736 3917 8685 3917 8680 3902 8668
      3894 8668 3871 8719
TIME...MOT...LOC 1819Z 231DEG 38KT 3881 8721 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...<50 MPH

$$

White
2 follow-up statements
863 
WWUS53 KIND 271833
SVSIND

Severe Weather Statement
National Weather Service Indianapolis IN
233 PM EDT Mon Apr 27 2026

INC027-055-083-101-271900-
/O.CON.KIND.SV.W.0113.000000T0000Z-260427T1900Z/
Knox IN-Martin IN-Greene IN-Daviess IN-
233 PM EDT Mon Apr 27 2026

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 300 PM EDT
FOR NORTHEASTERN KNOX...NORTHWESTERN MARTIN...SOUTHEASTERN GREENE AND
NORTHEASTERN DAVIESS COUNTIES...

At 233 PM EDT, a severe thunderstorm was located 10 miles southeast
of Linton, or 28 miles northeast of Vincennes, moving northeast at 45
mph.

HAZARD...Quarter size hail.

SOURCE...Radar indicated.

IMPACT...Damage to vehicles is expected.

Locations impacted include...
Bloomfield, Odon, Lyons, Elnora, Sandborn, Newberry, Crane,
Solsberry, and Owensburg.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3917 8685 3917 8680 3902 8668 3894 8668
      3876 8708 3893 8720
TIME...MOT...LOC 1833Z 231DEG 38KT 3890 8706 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...<50 MPH

$$

White
423 
WWUS53 KIND 271848
SVSIND

Severe Weather Statement
National Weather Service Indianapolis IN
248 PM EDT Mon Apr 27 2026

INC027-055-083-101-271858-
/O.CAN.KIND.SV.W.0113.000000T0000Z-260427T1900Z/
Knox IN-Martin IN-Greene IN-Daviess IN-
248 PM EDT Mon Apr 27 2026

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN KNOX...
NORTHWESTERN MARTIN...SOUTHEASTERN GREENE AND NORTHEASTERN DAVIESS
COUNTIES IS CANCELLED...

The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning has been cancelled.

A Severe Thunderstorm Watch remains in effect until 700 PM EDT for
south central, southwestern and west central Indiana.

LAT...LON 3917 8685 3917 8680 3902 8668 3894 8668
      3876 8708 3893 8720
TIME...MOT...LOC 1847Z 231DEG 38KT 3900 8690 

$$

White

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 Apr 27, 1:58 PM EDT, 21 minutes earlier. Its key messages:

  • Multiple rounds of thunderstorms expected today, severe weather is possible this afternoon into tonight.
  • Isolated Showers and thunderstorms possible on Tuesday, mainly across southern Indiana.
  • Cooler temperatures expected Wednesday through Sunday.
Area forecast discussion, Apr 27, 1:58 PM EDT, 21 minutes before
Area Forecast Discussion
National Weather Service Indianapolis IN
158 PM EDT Mon Apr 27 2026

.KEY MESSAGES...

- Multiple rounds of thunderstorms expected today, severe weather is
  possible this afternoon into tonight.

- Isolated Showers and thunderstorms possible on Tuesday, mainly
  across southern Indiana.

- Cooler temperatures expected Wednesday through Sunday.

&&

.DISCUSSION (This evening through Monday)...
Issued at 158 PM EDT Mon Apr 27 2026

Surface analysis late early this morning shows deepening low
pressure over IA and MN, with a cold front extending south across IA
to Central MO and NE OK. An area of strong convection had developed
within the warm sector, over IL and was pushing east toward Indiana.
Cloud tops continue to show steady state or slightly cooling tops.
However the strongest echos were now pushing into a more stable area
of air as showers have been falling in the Wabash Valley. Expected
progression of the storms will be to the east, but conditions across
Indiana were less favorable for convection. A better area for storms
was found across southern Central Indiana with more access to
instability there. Aloft, water vapor shows a moderate short wave
over the Dakotas with a southwest flow of air ahead of this wave
spreading across Illinois and Indiana amid weak diffluence aloft.

Tonight...

SEVERE WEATHER THREAT REMAINS TONIGHT.

Models show the upper wave progressing across the region, continuing
to spread forcing dynamics across Indiana through the evening,
Caveats have come into play. Namely, the cloud cover across Central
Indiana from convection upstream have not allowed for peak heating.
CAPE across the area remains limited this afternoon and the
convection is expected to spread across Indiana in a decaying state
late this afternoon. This will further diminish our severe weather
threat. Later this evening, HRRR suggests more development over
southern Illinois, pushing east into SW central Indiana. Confidence
is higher for these storms to be strong to severe, perhaps impacting
Vincennes, Sullivan, Linton, Washington and Shoals. Damaging
straight line winds will continue to be the main threat, again an
isolated QLCS tornado.

After a rainy evening, upper forcing is shown to end toward 05Z.
Forecast soundings show drying and subsidence as the upper trough
axis exits to the northeast. Lower level cloud cover should remain
through the night, as lower level moisture remains trapped
underneath an inversion.

Thus overall, high confidence for rain and storms this evening, with
best chances across the southern and southwest parts of the forecast
area. This will be followed by cloudy skies tonight. Little overall
change in the air mass will result in lows only in the upper 50s as
dew points are expected to remain in the 50s.

Tuesday...

Dry weather is expected on Tuesday as the upper flow is
nearly zonal, with little in the way of forcing dynamics passing
across Indiana. Forecast soundings continue to show a dry column
with subsidence ongoing with the departure of the previous wave. At
the surface, high pressure over the northern plains will continue to
spill southeast toward Indiana. Thus after morning clouds, some
afternoon sunshine should become available. Highs will reach the
upper 60s to around 70.

Tuesday Night and Wednesday...

Showers and Thunderstorms will be expected during this time,
particularly on late Tuesday Night into Wednesday. Models show
another subtle short wave within the broader cyclonic flow aloft
pushing across our region on late Tuesday night into Wednesday. A
weak area of surface low pressure is expected to ride this wave,
pushing across KY, and placing Indiana on the NW side of the low.
Forecast soundings show the arrival of deep saturation late Tuesday
Night into Wednesday with pwats as high as 1.7 inches. Thus
confidence is high for another round of rain showers on at this
time. Rain showers will exit by Wednesday afternoon as the upper
forcing and surface low departs. northerly surface winds in the wake
of the this system will allow for cooler temperatures on Wednesday,
with highs only in the lower to middle 60s.

Thursday Through Monday...

Indiana/s weather during this period will be controlled mainly by a
strong area of upper level low pressure over Ontario and Quebec.
This feature is suggested to rotate waves within this flow across
Indiana, mainly on Friday and again on Monday. The upper flow during
this time will be mainly a northwest fetch spilling toward Indiana
from Central Canada, providing mainly dry and cool air, due to the
low to the northwest. It is only when the weak waves pass that
enough forcing will be present to result in shower or storm chances.

Through this period within the lower levels surface high pressure
looks to be anchored over the plains states, keeping mainly westerly
or northwesterly flow in place across Indiana. Models suggest a
poorly organized cold front to pass on Friday, but this system lacks
access to deeper gulf moisture. A weak area of low pressure is
suggested to pass across Indiana on Monday, again associated with
the upper level feature.

Thus will try to contain pop chances to just Friday and Monday, with
mainly dry and cool weather expected on Thursday, Saturday and
Sunday.

As no intrusions of arctic or tropical air are expected, look for
temperatures to be near or below typical seasonal lows.

&&

.AVIATION (18Z TAF Issuance)...
Issued at 140 PM EDT Mon Apr 27 2026

Impacts:

- S-SE wind gusts 20 to 30 kt with higher gusts in TSRA
- Scattered to numerous thunderstorms through 04Z
- LLWS around 45kt Monday evening/night
- MVFR ceilings Monday evening into early Tuesday

Discussion:

Scattered showers have already developed across western Indiana. A
line of thunderstorms over IL will shift eastward across all but
KLAF this afternoon. IFR vis is expected with this convection along
with a wind shift to the W-NW and gusts from 35-45 kts, lasting less
than 1 hr at all the terminals. In the wake of this line, rain
showers with embedded TS is expected for several hours, before
another round of TSRA moves into the region after 23Z. This second
round of TS activity is expected to end between 03-05Z from west to
east as the cold front pushes eastward with an associated surface
wind shift to the west. MVFR ceilings will linger until Tuesday
morning behind the front.

&&

.IND WATCHES/WARNINGS/ADVISORIES...
None.
&&

AVIATION...Crosbie
DISCUSSION...Puma
Hazardous weather outlook, Apr 27, 3:52 AM EDT, 10 hours 27 minutes before
Hazardous Weather Outlook
National Weather Service Indianapolis IN
352 AM EDT Mon Apr 27 2026

INZ021-028>031-035>049-051>057-060>065-067>072-280800-
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-
352 AM EDT Mon Apr 27 2026

This hazardous weather outlook is for central Indiana.

.DAY ONE...Today and Tonight.

Severe thunderstorms are possible this afternoon into tonight. The
main threat will be damaging straight line winds, although isolated
tornadoes will also be possible. Flooding is also possible.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

More Thunderstorms are possible again on Tuesday, mainly across
southern Central Indiana.

.SPOTTER INFORMATION STATEMENT...

Spotters are encouraged to monitor forecast trends this afternoon.

&&

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, Apr 27, 1:56 PM EDT, 23 minutes before
Preliminary Local Storm Report
National Weather Service Indianapolis IN
156 PM EDT Mon Apr 27 2026

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

0141 PM     Hail             Decker                  38.52N 87.52W
04/27/2026  E0.25 Inch       Knox               IN   Amateur Radio

&&

Crosbie
Special weather statement, Apr 27, 2:01 PM EDT, 18 minutes before
Special Weather Statement
National Weather Service Indianapolis IN
201 PM EDT Mon Apr 27 2026

INZ043>045-051-052-271845-
Clay IN-Putnam IN-Parke IN-Vermillion IN-Vigo IN-
201 PM EDT Mon Apr 27 2026

...Strong thunderstorms will impact portions of Vigo, Clay, southern
Parke, southeastern Vermillion and southern Putnam Counties through
245 PM EDT...

At 201 PM EDT, Doppler radar was tracking strong thunderstorms along
a line extending from Clinton to near Marshall. Movement was east at
45 mph.

HAZARD...Wind gusts up to 50 mph and penny size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor hail damage to vegetation is
         possible.

Locations impacted include...
Terre Haute, Greencastle, Brazil, Clinton, West Terre Haute, Fairview
Park, Prairieton, Prairie Creek, Seelyville, Knightsville, Clay City,
Rosedale, Harmony, Staunton, Fillmore, Carbon, Universal, Center
Point, Riley, and Bridgeton.

This includes Interstate 70 between mile markers 1 and 36.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

A Severe Thunderstorm Watch remains in effect until 700 PM EDT for
southwestern and west central Indiana.

&&

LAT...LON 3931 8760 3934 8758 3934 8756 3935 8754
      3935 8753 3958 8753 3971 8740 3974 8669
      3947 8693 3947 8694 3946 8694 3923 8715
      3924 8724 3926 8725 3926 8760 3928 8761
      3930 8760 3931 8762
TIME...MOT...LOC 1801Z 267DEG 41KT 3966 8738 3936 8769

MAX HAIL SIZE...0.75 IN
MAX WIND GUST...50 MPH

White
Special weather statement, Apr 27, 2:03 PM EDT, 16 minutes before
Special Weather Statement
National Weather Service Indianapolis IN
203 PM EDT Mon Apr 27 2026

INZ030-035-036-044-045-271830-
Clinton IN-Montgomery IN-Putnam IN-Fountain IN-Parke IN-
203 PM EDT Mon Apr 27 2026

...Strong thunderstorms will impact portions of southeastern
Fountain, southwestern Clinton, central Parke, Montgomery and
northern Putnam Counties through 230 PM EDT...

At 203 PM EDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Williamsport to near Veedersburg to near
Rockville. Movement was east at 45 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...
Crawfordsville, Rockville, Ladoga, Waynetown, Roachdale, Darlington,
Linden, Bainbridge, Colfax, New Market, Hillsboro, Waveland,
Russellville, New Ross, Bloomingdale, Mecca, New Richmond, Marshall,
Wingate, and Newtown.

This includes Interstate 74 between mile markers 18 and 46.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

A Severe Thunderstorm Watch remains in effect until 700 PM EDT for
central and west central Indiana.

&&

LAT...LON 4023 8717 4023 8709 4021 8709 4021 8662
      4018 8662 4018 8670 3974 8669 3972 8733
TIME...MOT...LOC 1803Z 273DEG 40KT 4033 8724 4011 8717 3972 8730

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...50 MPH

White
Local storm report, Apr 27, 2:11 PM EDT, 8 minutes before
Preliminary Local Storm Report
National Weather Service Indianapolis IN
211 PM EDT Mon Apr 27 2026

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

0209 PM     Hail             Washington              38.66N 87.17W
04/27/2026  M0.50 Inch       Daviess            IN   Public

            Report from mPING: Half-inch (0.50 in.).

&&

AW
Local storm report, Apr 27, 2:16 PM EDT, 3 minutes before
Preliminary Local Storm Report
National Weather Service Indianapolis IN
216 PM EDT Mon Apr 27 2026

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

0214 PM     Hail             Bicknell                38.77N 87.31W
04/27/2026  E0.70 Inch       Knox               IN   Emergency Mngr

&&

AW
Local storm report, Apr 27, 2:17 PM EDT, 2 minutes before
Preliminary Local Storm Report
National Weather Service Indianapolis IN
217 PM EDT Mon Apr 27 2026

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

0214 PM     Hail             Bicknell                38.77N 87.31W
04/27/2026  E0.70 Inch       Knox               IN   Emergency Mngr

&&

Crosbie

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 27, 1:23 PM EDTSpecial Weather StatementINDFountain, Vermillion, Warren52 min
Apr 27, 1:28 PM EDTSpecial Weather StatementINDDaviess32 min
Apr 27, 1:38 PM EDTSevere Thunderstorm WarningINDDaviess, Knox52 min
Apr 27, 2:01 PM EDTSpecial Weather StatementINDClay, Putnam, Vigo44 min
Apr 27, 2:03 PM EDTSpecial Weather StatementINDMontgomery, Parke27 min
Apr 27, 2:23 PM EDTSevere Thunderstorm WarningINDClay, Greene, Sullivan, Vigo67 min
Apr 27, 2:54 PM EDTSpecial Weather StatementINDLawrence, Martin36 min
Apr 27, 2:59 PM EDTSevere Thunderstorm WarningINDJackson, Lawrence, Martin, Monroe31 min
Apr 27, 3:06 PM EDTSevere Thunderstorm WarningINDClay, Greene, Owen24 min
Apr 27, 3:21 PM EDTFlood WatchINDBrown, Clay, Daviess, Greene, Hendricks, Johnson and 12 more11 hr
Apr 27, 3:25 PM EDTSevere Thunderstorm WarningINDGreene, Lawrence, Monroe, Owen35 min
Apr 27, 3:55 PM EDTSevere Thunderstorm WarningINDDaviess, Greene, Lawrence, Martin35 min
Apr 27, 3:57 PM EDTSevere Thunderstorm WarningINDBrown, Jackson, Lawrence, Monroe48 min
Apr 27, 4:13 PM EDTSevere Thunderstorm WarningINDLawrence, Martin17 min
Apr 27, 4:14 PM EDTAreal Flood AdvisoryINDDaviess, Greene, Knox, Lawrence, Martin, Monroe and 2 more3 hr
Apr 27, 4:25 PM EDTSevere Thunderstorm WarningINDDaviess, Martin20 min
Apr 27, 4:34 PM EDTSevere Thunderstorm Warning Considerable damage threatINDDaviess, Knox41 min
Apr 27, 4:40 PM EDTSevere Thunderstorm WarningINDBartholomew, Brown, Jackson, Lawrence50 min
Apr 27, 5:01 PM EDTSevere Thunderstorm WarningINDJennings44 min
Apr 27, 5:06 PM EDTFlash Flood WarningINDDaviess, Jackson, Knox, Lawrence, Martin6 hr
Apr 27, 5:28 PM EDTSevere Thunderstorm WarningINDDaviess, Martin32 min
Apr 27, 6:00 PM EDTSevere Thunderstorm WarningINDLawrence, Martin15 min
Apr 27, 7:04 PM EDTSevere Thunderstorm WarningINDDaviess, Knox26 min
Apr 27, 7:29 PM EDTSevere Thunderstorm WarningINDDaviess, Knox31 min
Apr 27, 7:53 PM EDTSevere Thunderstorm WarningINDDaviess, Knox, Martin37 min
Apr 27, 7:55 PM EDTSevere Thunderstorm WarningINDMontgomery, Parke, Putnam50 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.