Synoptic and mesoscale conditions on April 9th, 2001...A stalled frontal boundary extended from northern Ohio back west into northeast Missouri with a developing surface low pressure wave near Quincy, Illinois monday afternoon.  This wave intensified late in the afternoon as a shortwave trough embedded within the southern periphery of a significant upper jet maxima of 120 knots over Minnesota pulled out into the upper Midwest.  Wind profilers at both Wolcott, Indiana and Winchester, Illinois indicated rapid backing low level winds and increasing speed convergence around 2500 feet coincident with rapid convective initiation along the frontal boundary from Logansport to Rensselaer.Storms rapidly intensified with CAPES (Convective Available Potential Energy, a measure of parcel buoyancy) south of the frontal boundary up to 3000 J/kg.  In addition...several storm scale mergers were observed with a left over outflow boundary from prior convection.  Thunderstorm intensification was very rapid owing to the large amount of instability in place along and south of a Monticello to Muncie line.  Deep layer shear to 50 knots was more than sufficient for supercell development.  Indeed most storms along the outflow boundary exhibited strong rotation...mainly at mid-levels but two storms in particular that moved across Cass, Miami, Grant, Blackford and Jay exhibited persistent, deep rotation with several funnel cloud reports but failed to produce any confirmed tornadoes.  However...these two storms did produce prodigious large hail...up to 4.5 inches in diameter just north of Hartford City.

Hail in GRANT, INDIANA
From 09-APR-01 18:25:00 to 09-APR-01 18:25:00 (EST)
Location: MARION
Magnitude: 0.88 
Reported by: EMERGENCY MANAGER

Hail in MIAMI, INDIANA
From 09-APR-01 19:03:00 to 09-APR-01 19:03:00 (EST)
Location: ERIE
Magnitude: 1.75 
Reported by: AMATEUR RADIO

Hail in PULASKI, INDIANA
From 09-APR-01 17:52:00 to 09-APR-01 17:52:00 (EST)
Location: MEDARYVILLE
Magnitude: 1.75 
Reported by: LAW ENFORCEMENT

Hail in WABASH, INDIANA
From 09-APR-01 18:23:00 to 09-APR-01 18:23:00 (EST)
Location: WABASH
Magnitude: 0.75 
Reported by: LAW ENFORCEMENT

Thunderstorm Wind in MIAMI, INDIANA
From 09-APR-01 19:00:00 to 09-APR-01 19:00:00 (EST)
Location: PERU
Property damage: 50K
Reported by: GENERAL PUBLIC

Several homes sustained window and siding damage due to the hail and high winds.

Hail in WABASH, INDIANA
From 09-APR-01 19:24:00 to 09-APR-01 19:24:00 (EST)
Location: SOMERSET
Magnitude: 1.00 
Reported by: AMATEUR RADIO

Hail in MIAMI, INDIANA
From 09-APR-01 18:00:00 to 09-APR-01 18:00:00 (EST)
Location: PERU
Magnitude: 0.75 
Reported by: EMERGENCY MANAGER

Hail in STARKE, INDIANA
From 09-APR-01 17:56:00 to 09-APR-01 17:56:00 (EST)
Location: NORTH JUDSON
Magnitude: 1.75 
Reported by: TRAINED SPOTTER

Hail in BLACKFORD, INDIANA
From 09-APR-01 19:23:00 to 09-APR-01 19:23:00 (EST)
Location: HARTFORD CITY
Magnitude: 1.75 
Reported by: LAW ENFORCEMENT

Golfball size hail reported across the county.

Hail in KOSCIUSKO, INDIANA
From 10-APR-01 00:58:00 to 10-APR-01 00:58:00 (EST)
Location: NORTH WEBSTER
Magnitude: 0.75 
Reported by: OFFICIAL NWS OBS.

Hail in NOBLE, INDIANA
From 10-APR-01 01:33:00 to 10-APR-01 01:33:00 (EST)
Location: ROME CITY
Magnitude: 1.75 
Reported by: LAW ENFORCEMENT

Hail in NOBLE, INDIANA
From 10-APR-01 01:45:00 to 10-APR-01 01:45:00 (EST)
Location: LIGONIER
Magnitude: 1.25 
Reported by: AMATEUR RADIO

Hail in JAY, INDIANA
From 09-APR-01 19:53:00 to 09-APR-01 19:53:00 (EST)
Location: PORTLAND
Magnitude: 1.75 
Reported by: AMATEUR RADIO

Hail in STEUBEN, INDIANA
From 10-APR-01 01:54:00 to 10-APR-01 01:54:00 (EST)
Location: SALEM CENTER
Magnitude: 0.88 
Reported by: TRAINED SPOTTER

Hail in WABASH, INDIANA
From 09-APR-01 17:33:00 to 09-APR-01 17:33:00 (EST)
Location: SOMERSET
Magnitude: 0.75 
Reported by: AMATEUR RADIO

Hail in MIAMI, INDIANA
From 09-APR-01 17:55:00 to 09-APR-01 17:55:00 (EST)
Location: BUNKER HILL
Magnitude: 1.75 
Reported by: EMERGENCY MANAGER

Several cars were reported damaged by the large hail.

Hail in MIAMI, INDIANA
From 09-APR-01 17:33:00 to 09-APR-01 17:33:00 (EST)
Location: GRISSOM AFB
Magnitude: 0.88 
Reported by: TRAINED SPOTTER

Hail in MIAMI, INDIANA
From 09-APR-01 17:45:00 to 09-APR-01 17:45:00 (EST)
Location: MEXICO
Magnitude: 1.00 
Reported by: FIRE DEPT/RESCUE SQUAD

Hail in MIAMI, INDIANA
From 09-APR-01 17:50:00 to 09-APR-01 17:50:00 (EST)
Location: PERU
Magnitude: 1.00 
Reported by: TRAINED SPOTTER

Hail in WHITE, INDIANA
From 09-APR-01 23:12:00 to 09-APR-01 23:12:00 (EST)
Location: CHALMERS
Magnitude: 0.75 
Reported by: EMERGENCY MANAGER

Hail in BLACKFORD, INDIANA
From 09-APR-01 19:30:00 to 09-APR-01 19:30:00 (EST)
Location: HARTFORD CITY
Magnitude: 0.88 
Reported by: TRAINED SPOTTER

Hail in FULTON, INDIANA
From 09-APR-01 18:56:00 to 09-APR-01 18:56:00 (EST)
Location: FULTON
Magnitude: 1.25 
Reported by: LAW ENFORCEMENT

Hail in JAY, INDIANA
From 09-APR-01 19:42:00 to 09-APR-01 19:42:00 (EST)
Location: PENNVILLE
Magnitude: 1.75 
Reported by: AMATEUR RADIO

Hail in CASS, INDIANA
From 09-APR-01 17:35:00 to 09-APR-01 17:35:00 (EST)
Location: ONWARD
Magnitude: 1.00 
Reported by: GENERAL PUBLIC

Hail in MIAMI, INDIANA
From 09-APR-01 17:44:00 to 09-APR-01 17:44:00 (EST)
Location: PERU
Magnitude: 1.75 
Reported by: TRAINED SPOTTER

Thunderstorm Wind in GRANT, INDIANA
From 09-APR-01 19:35:00 to 09-APR-01 19:35:00 (EST)
Location: ARCANA
Property damage: 150K
Reported by: LAW ENFORCEMENT

Several roofs reported blown off.  Many trees down.

Hail in BLACKFORD, INDIANA
From 09-APR-01 19:55:00 to 09-APR-01 19:55:00 (EST)
Location: HARTFORD CITY
Magnitude: 1.75 
Reported by: EMERGENCY MANAGER

Thunderstorm Wind in JAY, INDIANA
From 09-APR-01 20:02:00 to 09-APR-01 20:02:00 (EST)
Location: REDKEY
Property damage: 0K
Reported by: AMATEUR RADIO

Trees down.

Hail in WABASH, INDIANA
From 09-APR-01 19:09:00 to 09-APR-01 19:09:00 (EST)
Location: WABASH
Magnitude: 0.88 
Reported by: AMATEUR RADIO

Hail in GRANT, INDIANA
From 09-APR-01 19:30:00 to 09-APR-01 19:30:00 (EST)
Location: MARION
Magnitude: 1.00 
Reported by: EMERGENCY MANAGER

Hail in GRANT, INDIANA
From 09-APR-01 18:45:00 to 09-APR-01 18:45:00 (EST)
Location: MARION
Magnitude: 1.75 
Reported by: TRAINED SPOTTER

Hail in WABASH, INDIANA
From 09-APR-01 19:09:00 to 09-APR-01 19:09:00 (EST)
Location: SOMERSET
Magnitude: 1.25 
Reported by: TRAINED SPOTTER

Hail in BLACKFORD, INDIANA
From 09-APR-01 19:20:00 to 09-APR-01 19:20:00 (EST)
Location: HARTFORD CITY
Magnitude: 4.50 
Reported by: LAW ENFORCEMENT

Power lines down.

Hail in GRANT, INDIANA
From 09-APR-01 19:35:00 to 09-APR-01 19:35:00 (EST)
Location: ARCANA
Magnitude: 1.75 
Reported by: LAW ENFORCEMENT

Hail in JAY, INDIANA
From 09-APR-01 19:40:00 to 09-APR-01 19:40:00 (EST)
Location: PORTLAND
Magnitude: 1.75 
Reported by: AMATEUR RADIO

Hail in CASS, INDIANA
From 09-APR-01 17:29:00 to 09-APR-01 17:29:00 (EST)
Location: WALTON
Magnitude: 0.88 
Reported by: LAW ENFORCEMENT

Hail in WHITE, INDIANA
From 09-APR-01 22:55:00 to 09-APR-01 22:55:00 (EST)
Location: BROOKSTON
Magnitude: 0.75 
Reported by: EMERGENCY MANAGER

Hail in NOBLE, INDIANA
From 10-APR-01 01:10:00 to 10-APR-01 01:10:00 (EST)
Location: CROMWELL
Magnitude: 0.75 
Reported by: FIRE DEPT/RESCUE SQUAD

Hail in WABASH, INDIANA
From 09-APR-01 18:29:00 to 09-APR-01 18:29:00 (EST)
Location: SOMERSET
Magnitude: 0.75 
Reported by: TRAINED SPOTTER

Hail in GRANT, INDIANA
From 09-APR-01 18:45:00 to 09-APR-01 18:45:00 (EST)
Location: MARION
Magnitude: 0.88 
Reported by: EMERGENCY MANAGER

Power lines reported blown down.

Hail in WABASH, INDIANA
From 09-APR-01 19:09:00 to 09-APR-01 19:09:00 (EST)
Location: WABASH
Magnitude: 1.00 
Reported by: TRAINED SPOTTER

Hail in GRANT, INDIANA
From 09-APR-01 19:05:00 to 09-APR-01 19:05:00 (EST)
Location: ARCANA
Magnitude: 2.00 
Reported by: TRAINED SPOTTER

Hail in WABASH, INDIANA
From 09-APR-01 19:28:00 to 09-APR-01 19:28:00 (EST)
Location: LA FONTAINE
Magnitude: 0.88 
Reported by: TRAINED SPOTTER

Hail in CASS, INDIANA
From 09-APR-01 18:50:00 to 09-APR-01 18:50:00 (EST)
Location: LAKE CICOTT
Magnitude: 0.75 
Reported by: EMERGENCY MANAGER

Thunderstorm Wind in GRANT, INDIANA
From 09-APR-01 19:00:00 to 09-APR-01 19:00:00 (EST)
Location: ARCANA
Property damage: 0K
Reported by: TRAINED SPOTTER

Roof blown of a barn.

Hail in LAGRANGE, INDIANA
From 10-APR-01 01:25:00 to 10-APR-01 01:25:00 (EST)
Location: TOPEKA
Magnitude: 0.75 
Reported by: AMATEUR RADIO

Hail in WHITE, INDIANA
From 10-APR-01 01:28:00 to 10-APR-01 01:28:00 (EST)
Location: REYNOLDS
Magnitude: 0.75 
Reported by: EMERGENCY MANAGER

Hail in NOBLE, INDIANA
From 10-APR-01 01:17:00 to 10-APR-01 01:17:00 (EST)
Location: LIGONIER
Magnitude: 1.75 
Reported by: LAW ENFORCEMENT

Hail in STEUBEN, INDIANA
From 10-APR-01 02:08:00 to 10-APR-01 02:08:00 (EST)
Location: ANGOLA
Magnitude: 0.88 
Reported by: TRAINED SPOTTER