Alert archive / Indiana / Severe Thunderstorm Warnings in 2026

Severe Thunderstorm Warning 34, NWS Louisville, KY

April 1, 20264 counties in Indiana

NWS Louisville, KY issued this severe thunderstorm warning at Apr 1, 2026, 3:22 PM EDT for 4 counties in Indiana. It was in force for 38 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
Apr 1, 2026, 3:22 PM EDT (19:22 UTC)
Expired
Apr 1, 2026, 4:00 PM EDT
In force
38 min
Issued by
NWS Louisville, KY
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Clark County, IN, Jefferson County, IN, Scott County, IN, Washington County, IN

The radar

The Louisville radar (KLVX), 76 km from the middle of the area, began a volume at 19:25 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 nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 12:00Z, 7.4 hours before the alert went out and 190 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 2026-04-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 125 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 2026-04-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 72 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
125 J/kg
Mixed-layer CIN
-46 J/kg
Mixed-layer LCL
921 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
72 m²/s²
0-3 km storm-relative helicity
71 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

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 Louisville, KY wrote its last area forecast discussion before this severe thunderstorm warning went out at Apr 1, 1:57 PM EDT, 1 hour 25 minutes earlier.

Area forecast discussion, Apr 1, 1:57 PM EDT, 1 hour 25 minutes before
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Hazardous weather outlook, Apr 1, 4:46 AM EDT, 10 hours 36 minutes before
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In the hours before

Special weather statement, Apr 1, 2:08 PM EDT, 1 hour 14 minutes before
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Special weather statement, Apr 1, 2:28 PM EDT, 54 minutes before
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Special weather statement, Apr 1, 2:45 PM EDT, 37 minutes before
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Special weather statement, Apr 1, 2:54 PM EDT, 28 minutes before
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Special weather statement, Apr 1, 3:02 PM EDT, 20 minutes before
Special Weather Statement
National Weather Service Louisville KY
302 PM EDT Wed Apr 1 2026

INZ090-091-KYZ030-011930-
Floyd IN-Harrison IN-Jefferson KY-
302 PM EDT Wed Apr 1 2026

...A STRONG THUNDERSTORM WILL IMPACT SOUTHEASTERN HARRISON...SOUTH
CENTRAL FLOYD AND WEST CENTRAL JEFFERSON COUNTIES THROUGH 330 PM
EDT...

At 302 PM EDT, Doppler radar was tracking a strong thunderstorm near
Corydon, moving east at 35 mph.

HAZARD...Wind gusts up to 40 mph and half inch 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...
Shively, Valley Station, St. Dennis, Pleasure Ridge Par, Pleasure
Ridge Park, Fairdale, Lanesville, Elizabeth, New Middletown, and
Laconia.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

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

&&

LAT...LON 3829 8587 3810 8578 3801 8610 3802 8611
      3801 8615 3816 8622
TIME...MOT...LOC 1902Z 248DEG 32KT 3812 8609

MAX HAIL SIZE...0.50 IN
MAX WIND GUST...40 MPH

Webb

The office that day

Everything else NWS Louisville, KY issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 1, 2:28 PM EDTSpecial Weather StatementLMKOldham32 min
Apr 1, 3:59 PM EDTSpecial Weather StatementLMKAnderson, Woodford46 min
Apr 1, 4:07 PM EDTSpecial Weather StatementLMKShelby38 min
Apr 1, 4:13 PM EDTSevere Thunderstorm WarningLMKJefferson, Oldham, Shelby, Spencer32 min
Apr 1, 4:14 PM EDTSevere Thunderstorm WarningLMKTrimble31 min
Apr 1, 4:21 PM EDTSpecial Weather StatementLMKHardin24 min
Apr 1, 4:30 PM EDTSpecial Weather StatementLMKFayette, Woodford60 min
Apr 1, 4:33 PM EDTSpecial Weather StatementLMKShelby42 min
Apr 1, 4:44 PM EDTSpecial Weather StatementLMKHart31 min
Apr 1, 4:53 PM EDTSevere Thunderstorm WarningLMKGreen, Hart22 min
Apr 1, 4:57 PM EDTSpecial Weather StatementLMKHenry18 min
Apr 1, 4:59 PM EDTSpecial Weather StatementLMKBullitt46 min
Apr 1, 5:00 PM EDTSpecial Weather StatementLMKJefferson45 min
Apr 1, 5:14 PM EDTSpecial Weather StatementLMKGreen31 min
Apr 1, 5:23 PM EDTSpecial Weather StatementLMKBourbon37 min
Apr 1, 5:30 PM EDTSpecial Weather StatementLMKScott, Woodford45 min
Apr 1, 5:31 PM EDTSpecial Weather StatementLMKTaylor29 min
Apr 1, 5:35 PM EDTSpecial Weather StatementLMKSpencer25 min
Apr 1, 6:00 PM EDTSpecial Weather StatementLMKAnderson, Spencer30 min
Apr 1, 7:03 PM EDTSpecial Weather StatementLMKHardin42 min
Apr 1, 7:07 PM EDTSevere Thunderstorm WarningLMKBullitt, Hardin, Larue, Nelson38 min
Apr 1, 7:44 PM EDTSpecial Weather StatementLMKNelson46 min
Apr 1, 2:08 PM EDTSpecial Weather StatementLMKOrange52 min
Apr 1, 2:20 PM EDTSevere Thunderstorm WarningLMKOrange25 min
Apr 1, 2:45 PM EDTSpecial Weather StatementLMKWashington45 min
Apr 1, 2:54 PM EDTSpecial Weather StatementLMKDubois36 min
Apr 1, 2:57 PM EDTSevere Thunderstorm WarningLMKWashington33 min
Apr 1, 3:02 PM EDTSpecial Weather StatementLMKHarrison28 min
Apr 1, 3:27 PM EDTSpecial Weather StatementLMKCrawford33 min
Apr 1, 3:49 PM EDTSpecial Weather StatementLMKJefferson26 min
Apr 1, 4:01 PM EDTSpecial Weather StatementLMKJefferson29 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.