Shortly after one o'clock in the morning on April 26, 2011 a powerful squall line brought damaging straight-line winds to much of Logan County.  The strongest winds, possibly up to 100 mph, swept from Olmstead to Chandlers Chapel.  This squall line tracked east through the early morning hours causing wind damage across south central Kentucky.  Storms redeveloped later in the afternoon as a the lower Ohio was situated in an area of strong upper level divergence with multiple vortmaxes rotating across the region.  The storms that developed during the afternoon and evening hours produced large hail as well as three tornadoes across Grayson and Hardin counties.

Thunderstorm Wind in LOGAN, KENTUCKY
From 26-APR-11 00:22:00 to 26-APR-11 00:22:00 (CST-6)
Location: OLMSTEAD
Magnitude: 56.00 EG
Reported by: Emergency Manager

A barn was blown on to the railroad tracks.  Several trees were also blown down.

Thunderstorm Wind in LOGAN, KENTUCKY
From 26-APR-11 00:27:00 to 26-APR-11 00:27:00 (CST-6)
Location: RUSSELLVILLE
Magnitude: 52.00 EG
Reported by: Law Enforcement

A tree was blown down on a house in Russellville.  A tree was also blown on a tractor trailer as it was traveling on Concord Rd.

Thunderstorm Wind in BUTLER, KENTUCKY
From 26-APR-11 00:48:00 to 26-APR-11 00:48:00 (CST-6)
Location: NEEDMORE
Magnitude: 70.00 EG
Reported by: Law Enforcement

A trailer was blown off the foundation and destroyed on Bowling Green Rd.

Thunderstorm Wind in LOGAN, KENTUCKY
From 26-APR-11 00:37:00 to 26-APR-11 00:37:00 (CST-6)
Location: AUBURN
Magnitude: 56.00 EG
Reported by: Law Enforcement

Roof damage was reported.

Thunderstorm Wind in SIMPSON, KENTUCKY
From 26-APR-11 00:54:00 to 26-APR-11 00:54:00 (CST-6)
Location: FRANKLIN
Magnitude: 52.00 EG
Reported by: Law Enforcement

A tree was blown down on Morgantown Rd.

Thunderstorm Wind in WARREN, KENTUCKY
From 26-APR-11 00:58:00 to 26-APR-11 00:58:00 (CST-6)
Location: BOWLING GREEN
Magnitude: 56.00 EG
Reported by: Law Enforcement

Trees were down all over town.

Thunderstorm Wind in GRAYSON, KENTUCKY
From 26-APR-11 01:08:00 to 26-APR-11 01:08:00 (CST-6)
Location: CANEYVILLE
Magnitude: 52.00 EG
Reported by: Law Enforcement

A couple of trees were blown down.

Thunderstorm Wind in GRAYSON, KENTUCKY
From 26-APR-11 01:21:00 to 26-APR-11 01:21:00 (CST-6)
Location: LEITCHFIELD
Magnitude: 50.00 MG
Reported by: Mesonet

The Grayson county mesonet measured a wind gust of 58 mph.

Thunderstorm Wind in BARREN, KENTUCKY
From 26-APR-11 01:45:00 to 26-APR-11 01:45:00 (CST-6)
Location: GLASGOW
Magnitude: 52.00 EG
Reported by: Law Enforcement

Multiple trees were blown down in Glasgow.

Thunderstorm Wind in NELSON, KENTUCKY
From 26-APR-11 03:17:00 to 26-APR-11 03:17:00 (EST-5)
Location: BARDSTOWN
Magnitude: 52.00 EG
Reported by: Law Enforcement

A few electrical outages were reported and a couple of trees were down in the Bardstown city limits.

Thunderstorm Wind in MARION, KENTUCKY
From 26-APR-11 03:28:00 to 26-APR-11 03:28:00 (EST-5)
Location: LEBANON
Magnitude: 52.00 EG
Reported by: Law Enforcement

A telephone pole was about to come down and the power line was down.

Thunderstorm Wind in TAYLOR, KENTUCKY
From 26-APR-11 03:33:00 to 26-APR-11 03:33:00 (EST-5)
Location: ROMINE
Magnitude: 52.00 EG
Reported by: Department of Highways

Taylor county department of highways had to remove a tree from Hwy. 55 near the Adair county line.

Thunderstorm Wind in SPENCER, KENTUCKY
From 26-APR-11 03:37:00 to 26-APR-11 03:37:00 (EST-5)
Location: LITTLE MT
Magnitude: 61.00 EG
Reported by: Department of Highways

A well built tobacco barn was destroyed at the 4 mile marker on KY 1795.

Thunderstorm Wind in FAYETTE, KENTUCKY
From 26-APR-11 04:20:00 to 26-APR-11 04:20:00 (EST-5)
Location: (LEX)BLU GRS FLD LEX
Magnitude: 54.00 MG
Reported by: ASOS

A 62 mph gust was measured at the Bluegrass Field Airport.

Hail in OHIO, KENTUCKY
From 26-APR-11 17:01:00 to 26-APR-11 17:01:00 (CST-6)
Location: DUKEHURST
Magnitude: 2.75 
Reported by: Emergency Manager

Hail in OHIO, KENTUCKY
From 26-APR-11 17:09:00 to 26-APR-11 17:09:00 (CST-6)
Location: DUNDEE
Magnitude: 1.75 
Reported by: Emergency Manager

Hail in EDMONSON, KENTUCKY
From 26-APR-11 21:51:00 to 26-APR-11 21:51:00 (CST-6)
Location: SUNFISH
Magnitude: 1.75 
Reported by: Trained Spotter

Hail in BRECKINRIDGE, KENTUCKY
From 26-APR-11 22:25:00 to 26-APR-11 22:25:00 (CST-6)
Location: MC DANIELS
Magnitude: 0.88 
Reported by: Law Enforcement

Hail in OHIO, KENTUCKY
From 26-APR-11 17:12:00 to 26-APR-11 17:12:00 (CST-6)
Location: DUNDEE
Magnitude: 1.75 
Reported by: Trained Spotter

Hail in OHIO, KENTUCKY
From 26-APR-11 17:24:00 to 26-APR-11 17:24:00 (CST-6)
Location: FORDSVILLE
Magnitude: 1.75 
Reported by: Trained Spotter

Hail in GRAYSON, KENTUCKY
From 26-APR-11 17:55:00 to 26-APR-11 17:55:00 (CST-6)
Location: SHORT CREEK
Magnitude: 1.00 
Reported by: Trained Spotter

Hail in GRAYSON, KENTUCKY
From 26-APR-11 17:56:00 to 26-APR-11 17:56:00 (CST-6)
Location: DUFF
Magnitude: 1.00 
Reported by: Trained Spotter

Hail in BRECKINRIDGE, KENTUCKY
From 26-APR-11 22:26:00 to 26-APR-11 22:26:00 (CST-6)
Location: CLOVERPORT
Magnitude: 1.00 
Reported by: Law Enforcement

Hail in BRECKINRIDGE, KENTUCKY
From 26-APR-11 22:29:00 to 26-APR-11 22:29:00 (CST-6)
Location: MC QUADY
Magnitude: 1.00 
Reported by: Trained Spotter

Tornado in GRAYSON, KENTUCKY
From 26-APR-11 18:18:00 to 26-APR-11 18:21:00 (CST-6)
Location: TAR HILL
Tornado F-scale: EF2
Reported by: NWS Storm Survey

An NWS storm survey comfirmed an EF-2 tornado with maximum wind speeds between 120 and 125 mph touched down in Grayson county along Danny Sadler Rd.  On Danny Sadler Road a single wide trailer was destroyed and farm equipment was thrown 50 yards. The tornado continued to the northeast for approximately 2.7 miles before lifting in Hardin county near Burkhead Ln. Elsewhere along the path numerous large hardwood trees were snapped and uprooted. Numerous barns and outbuildings were destroyed with their siding thrown 500 yards. A new 24 foot travel trailer was destroyed.  Fifteen homes had major roof damage.

Tornado in GRAYSON, KENTUCKY
From 26-APR-11 18:19:00 to 26-APR-11 18:20:00 (CST-6)
Location: TAR HILL
Tornado F-scale: EF0
Reported by: NWS Storm Survey

An NWS storm survey confirmed that an EF-0 tornado with maximum winds of 75 mph touched down just south of Danny Sadler Rd.  The tornado was on the ground for less than a minute and it was a secondary circulation just south of the parent tornado.  Trees were snapped and uprooted along its path and power lines were blown down.

Hail in HENRY, KENTUCKY
From 26-APR-11 23:28:00 to 26-APR-11 23:28:00 (EST-5)
Location: NEW CASTLE
Magnitude: 1.00 
Reported by: Law Enforcement

Tornado in HARDIN, KENTUCKY
From 26-APR-11 19:21:00 to 26-APR-11 19:22:00 (EST-5)
Location: SOLWAY
Tornado F-scale: EF0
Reported by: NWS Storm Survey

An NWS storm survey confirmed an EF-2 tornado with maximum wind speeds between 120 and 125 mph touched down in Grayson county along Danny Sadler Rd.  The tornado was weakening as it crossed into Hardin county.  Here is was rated an EF-0 with estimated winds of 80 mph.  Multiple trees were snapped or uprooted.  The tornado lifted just west of Burkhead Ln.

Hail in HARDIN, KENTUCKY
From 26-APR-11 19:41:00 to 26-APR-11 19:41:00 (EST-5)
Location: EASTVIEW
Magnitude: 0.88 
Reported by: Trained Spotter

Thunderstorm Wind in HARDIN, KENTUCKY
From 26-APR-11 19:50:00 to 26-APR-11 19:50:00 (EST-5)
Location: GLENDALE
Magnitude: 56.00 EG
Reported by: Emergency Manager

Trees were blown down across High Street in Glendale.

Tornado in HARDIN, KENTUCKY
From 26-APR-11 19:53:00 to 26-APR-11 19:54:00 (EST-5)
Location: GLENDALE JCT
Tornado F-scale: EF1
Reported by: NWS Storm Survey

An NWS storm survey confirmed an EF-1 tornado with maximum wind speeds of 100 to 105 mph touched down about 2 miles east-northeast of Glendale.  The tornado formed just west of Interstate 65 and crossed the highway, the Hardin County Fairgrounds, and lifted just east of the intersection of First Union Church Road and Sportsman Lake Road.  On the fairgrounds the tornado struck a large livestock barn as well as the fairground's restaurant. The roof of the restaurant was thrown westward on top of a livestock barn. Metal siding was thrown 250 yards and several trees were snapped and uprooted. Near the end of the path there was roof damage to a one story house as well as downed power lines.

Hail in HARDIN, KENTUCKY
From 26-APR-11 20:03:00 to 26-APR-11 20:03:00 (EST-5)
Location: ELIZABETH TOWN
Magnitude: 0.88 
Reported by: Amateur Radio

Hail was reported on St. John's Rd.

Lightning in OHIO, KENTUCKY
From 26-APR-11 21:34:00 to 26-APR-11 21:34:00 (CST-6)
Location: BEAVER DAM
Reported by: Law Enforcement

Law enforcement reported a person struck by lightning.  The extent of injuries is unknown.

Hail in NELSON, KENTUCKY
From 26-APR-11 21:16:00 to 26-APR-11 21:16:00 (EST-5)
Location: BARDSTOWN
Magnitude: 1.25 
Reported by: Trained Spotter

Hail in NELSON, KENTUCKY
From 26-APR-11 21:50:00 to 26-APR-11 21:50:00 (EST-5)
Location: CHAPLIN
Magnitude: 0.88 
Reported by: Trained Spotter

Hail was just under quarter size.

Thunderstorm Wind in LOGAN, KENTUCKY
From 26-APR-11 00:22:00 to 26-APR-11 00:27:00 (CST-6)
Location: OLMSTEAD
Magnitude: 87.00 EG
Reported by: NWS Storm Survey

An NWS storm survey confirmed straight line wind damage from Olmstead to Chandlers Chapel.  Several small outbuildings including a carport and a barn were severely damaged.  Numerous trees were snapped.  Winds were estimated to be up to 100 mph.