During the evening hours on March 1st, a decaying cold front gradually moved across the Ohio Valley, with showers and thunderstorms developing along and just ahead of the approaching boundary. Across southern Indiana and central Kentucky, temperatures surged into the upper 70s and lower 80s during the afternoon hours before the front's arrival, although dewpoints in the mid-to-upper 50s limited overall surface-based instability. In spite of modest dewpoints, between 500-1000 J/kg MUCAPE was able to develop ahead of developing storms, and effective bulk shear of 40-45 kts provided ample dynamic support to sustain convection across the area. The majority of the severe reports on this day was associated with initially discrete cells which quickly grew upscale into multicell clusters along and just north of the Ohio River. The cells developed in an area with 7-7.5 degree Celsius per kilometer mid-level lapse rates and 300-500 J/kg CAPE in the -10 to -30 Celsius layer, which indicates an environment at least marginally favorable for hail. Ultimately, this would be sufficient for several cells to produce severe hail across southern Indiana and northern Kentucky, with up to golf ball-sized hail being observed.

Hail in JEFFERSON, INDIANA
From 01-MAR-23 19:02:00 to 01-MAR-23 19:02:00 (EST-5)
Location: HANOVER
Magnitude: 1.75 
Reported by: Broadcast Media

Golf ball sized hail fell in Hanover.

Hail in PERRY, INDIANA
From 01-MAR-23 18:12:00 to 01-MAR-23 18:12:00 (EST-5)
Location: TELL CITY
Magnitude: 1.00 
Reported by: Broadcast Media

Quarter-sized hail fell in Tell City.

Hail in HARRISON, INDIANA
From 01-MAR-23 18:55:00 to 01-MAR-23 18:55:00 (EST-5)
Location: BRADFORD
Magnitude: 1.75 
Reported by: Broadcast Media

Golf ball sized hail fell near Bradford in northeast Harrison County.

Hail in HARRISON, INDIANA
From 01-MAR-23 18:55:00 to 01-MAR-23 18:55:00 (EST-5)
Location: BRADFORD
Magnitude: 1.75 
Reported by: Broadcast Media

Golf ball sized hail fell in northeast Harrison County.

Hail in CLARK, INDIANA
From 01-MAR-23 19:14:00 to 01-MAR-23 19:14:00 (EST-5)
Location: MEMPHIS
Magnitude: 1.00 
Reported by: Broadcast Media

Quarter sized hail fell near Memphis.

Hail in CLARK, INDIANA
From 01-MAR-23 19:23:00 to 01-MAR-23 19:23:00 (EST-5)
Location: OTISCO
Magnitude: 1.00 
Reported by: Broadcast Media

Quarter sized hail fell near Otisco.

Hail in JEFFERSON, INDIANA
From 01-MAR-23 19:00:00 to 01-MAR-23 19:00:00 (EST-5)
Location: HANOVER BEACH
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Quarter sized hail fell near Hanover.

Hail in HARRISON, INDIANA
From 01-MAR-23 18:55:00 to 01-MAR-23 18:55:00 (EST-5)
Location: NEW SALISBURY
Magnitude: 1.50 
Reported by: Broadcast Media

Ping pong ball sized hail fell near New Salisbury, with hailstones measured against a ruler.

Hail in CRAWFORD, INDIANA
From 01-MAR-23 18:28:00 to 01-MAR-23 18:28:00 (EST-5)
Location: BEECHWOOD
Magnitude: 1.50 
Reported by: Public

Hail between half dollar and ping pong ball size was reported near Beechwood.

Hail in FLOYD, INDIANA
From 01-MAR-23 19:03:00 to 01-MAR-23 19:03:00 (EST-5)
Location: GREENVILLE
Magnitude: 1.00 
Reported by: Broadcast Media

Quarter sized hail fell near Greenville.