A strong jet began to carve out an unseasonably deep trough across the upper midwest early on the 27th of July. Low pressure deepened as it moved across the eastern Great Lakes late on that same day.  Ahead of this surface feature, very warm temperatures and high humidities developed across the Lower Ohio Valley during the afternoon of the 26th. Strong northwesterly flow aloft and a southwesterly low level jet aided in the development of several rounds of severe storms that brought scattered reports of large hail and damaging winds for an almost continuous 24 hour period, stretching from the evening hours on the 26th through late evening on the 27th.  A bow echo moved southeast of the Ohio River during the evening of the 26th, bringing widespread damaging winds and isolated large hail. During the early morning hours of the 27th, additional clusters of strong storms moved across central Kentucky. By late morning, a supercell developed northwest of Lexington, bringing very large hail and a damaging microburst in Lexington. Finally, additional supercells developed during the late afternoon across the Lake Cumberland Region and eastern Kentucky.

Hail in RUSSELL, KENTUCKY
From 27-JUL-14 14:50:00 to 27-JUL-14 14:50:00 (CST-6)
Location: JAMESTOWN
Magnitude: 1.75 
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in SPENCER, KENTUCKY
From 27-JUL-14 10:25:00 to 27-JUL-14 10:25:00 (EST-5)
Location: MT EDEN
Magnitude: 2.00 
Crop damage: 0.00K
Reported by: Public

Hail in FAYETTE, KENTUCKY
From 27-JUL-14 10:39:00 to 27-JUL-14 10:39:00 (EST-5)
Location: GREENDALE
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 50.00K
Reported by: County Official

Widespread large hail up to golf-ball size damaged corn, soybean and tobacco crops at the University of Kentucky Agricultural Research Farm just north of Lexington. This hail fell from a supercell that brought a destructive microburst to Lexington.

Hail in FAYETTE, KENTUCKY
From 27-JUL-14 10:40:00 to 27-JUL-14 10:40:00 (EST-5)
Location: LEXINGTON
Magnitude: 1.75 
Crop damage: 0.00K
Reported by: Public

Thunderstorm Wind in LOGAN, KENTUCKY
From 27-JUL-14 18:27:00 to 27-JUL-14 18:27:00 (CST-6)
Location: RUSSELLVILLE
Magnitude: 52.00 EG
Crop damage: 0.00K
Reported by: Law Enforcement

A large tree was downed at the Russellville town square.

Flood in MEADE, KENTUCKY
From 27-JUL-14 05:45:00 to 27-JUL-14 05:45:00 (EST-5)
Location: BUCK GROVE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Buck Grove Road became briefly impassable due to high water.

Thunderstorm Wind in FAYETTE, KENTUCKY
From 27-JUL-14 10:50:00 to 27-JUL-14 10:50:00 (EST-5)
Location: LEXINGTON
Magnitude: 52.00 EG
Property damage: 15.00K
Crop damage: 0.00K
Reported by: Broadcast Media

The Lexington media reported that a brick building was destroyed in the Park Avenue neighborhood of Lexington. Several trees were downed nearby.

Hail in BOYLE, KENTUCKY
From 27-JUL-14 12:30:00 to 27-JUL-14 12:30:00 (EST-5)
Location: DANVILLE
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in HARDIN, KENTUCKY
From 26-JUL-14 21:30:00 to 26-JUL-14 21:30:00 (EST-5)
Location: ELIZABETH TOWN
Magnitude: 52.00 EG
Crop damage: 0.00K
Reported by: NWS Employee

A NWS employee reported trees and power poles down near Elizabethtown.

Thunderstorm Wind in NELSON, KENTUCKY
From 26-JUL-14 21:40:00 to 26-JUL-14 21:40:00 (EST-5)
Location: BARDSTOWN
Magnitude: 52.00 EG
Crop damage: 0.00K
Reported by: Law Enforcement

Local law enforcement reported several trees and power lines down in Bardstown and other locations around the county.

Thunderstorm Wind in CLARK, KENTUCKY
From 27-JUL-14 11:14:00 to 27-JUL-14 11:14:00 (EST-5)
Location: RUCKERVILLE
Magnitude: 52.00 EG
Crop damage: 0.00K
Reported by: Emergency Manager

Several trees were downed in Ruckerville.

Hail in METCALFE, KENTUCKY
From 27-JUL-14 14:28:00 to 27-JUL-14 14:28:00 (CST-6)
Location: SUBTLE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A spotter reported quarter sized hail and strong winds near Danville.

Hail in WOODFORD, KENTUCKY
From 27-JUL-14 10:44:00 to 27-JUL-14 10:44:00 (EST-5)
Location: VERSAILLES
Magnitude: 2.00 
Crop damage: 0.00K
Reported by: Trained Spotter

The same supercell that brought hail and destructive winds to Lexington brought 2 inch hail to Woodford County.

Thunderstorm Wind in TRIMBLE, KENTUCKY
From 27-JUL-14 06:45:00 to 27-JUL-14 06:45:00 (EST-5)
Location: MILTON
Magnitude: 52.00 EG
Crop damage: 0.00K
Reported by: Fire Department/Rescue

The local fire department reported trees snapped and uprooted. A large tree fell and blocked State Highway 421 at Milton Hill.

Thunderstorm Wind in SCOTT, KENTUCKY
From 27-JUL-14 10:25:00 to 27-JUL-14 10:25:00 (EST-5)
Location: PAYNES DEPOT
Magnitude: 52.00 EG
Property damage: 15.00K
Crop damage: 0.00K
Reported by: Trained Spotter

The supercell storm that later dumped large hail across northern Lexington downed trees and partially tore a roof off of a home 4 miles east of Midway.

Thunderstorm Wind in MADISON, KENTUCKY
From 27-JUL-14 11:20:00 to 27-JUL-14 11:20:00 (EST-5)
Location: RICHMOND
Magnitude: 52.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Public

A tree fell and damaged a truck near the Eastern Kentucky University Campus.

Thunderstorm Wind in NICHOLAS, KENTUCKY
From 27-JUL-14 12:10:00 to 27-JUL-14 12:10:00 (EST-5)
Location: EAST UNION
Magnitude: 52.00 EG
Crop damage: 0.00K
Reported by: Emergency Manager

The county emergency manager reported that 3 trees were downed off of Highway 57 near East Union.

Thunderstorm Wind in CUMBERLAND, KENTUCKY
From 27-JUL-14 14:36:00 to 27-JUL-14 14:36:00 (CST-6)
Location: BAKERTON
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

The Cumberland County emergency manager reported some trees downed near State Highway 3140.

Thunderstorm Wind in BRECKINRIDGE, KENTUCKY
From 26-JUL-14 19:50:00 to 26-JUL-14 19:50:00 (CST-6)
Location: IRVINGTON
Magnitude: 52.00 EG
Property damage: 30.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Several trees fell across cars in Irvington.

Thunderstorm Wind in FAYETTE, KENTUCKY
From 27-JUL-14 10:35:00 to 27-JUL-14 10:38:00 (EST-5)
Location: VILEY
Magnitude: 74.00 EG
Property damage: 100.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

A National Weather Service storm survey confirmed that a microburst associated with a supercell brought widespread damaging winds along a path beginning near Masterson Station Park and ending near Highlands Park. Golf ball sized hail also fell along this path. Across an area roughly one half mile long and and one third of a mile wide, winds estimated in the range of 70 to 95 mph downed many trees, including 6 that fell on homes. The greatest damage was concentrated in the Highlands Park neighborhood.

Hail in CUMBERLAND, KENTUCKY
From 27-JUL-14 14:38:00 to 27-JUL-14 14:38:00 (CST-6)
Location: BECKS STORE
Magnitude: 1.00 
Crop damage: 0.00K
Reported by: Trained Spotter

A spotter reported 7 minutes of hail of around one inch in diameter. This hail came from a supercell that developed in the afternoon near Lake Cumberland.

Thunderstorm Wind in CLINTON, KENTUCKY
From 27-JUL-14 19:16:00 to 27-JUL-14 19:16:00 (CST-6)
Location: SEVENTY SIX
Magnitude: 52.00 EG
Crop damage: 0.00K
Reported by: Law Enforcement

Local law enforcement reported trees down near the town of Seventy Six.

Thunderstorm Wind in SHELBY, KENTUCKY
From 26-JUL-14 21:45:00 to 26-JUL-14 21:45:00 (EST-5)
Location: L S PARK
Magnitude: 52.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Local law enforcement reported a tree down on a house in eastern Shelby County. Several other trees fell across the county. The Kentucky Mesonet site located 10 miles west of Shelbyville recorded a 49 mph wind gust.

Thunderstorm Wind in TAYLOR, KENTUCKY
From 26-JUL-14 22:20:00 to 26-JUL-14 22:20:00 (EST-5)
Location: CAMPBELLSVILLE
Magnitude: 52.00 EG
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement reported trees down near Campbellsville.

Thunderstorm Wind in CUMBERLAND, KENTUCKY
From 27-JUL-14 18:55:00 to 27-JUL-14 18:55:00 (CST-6)
Location: BAKERTON
Magnitude: 52.00 EG
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement reported that State Highway 3140 was closed due to several downed trees.

Thunderstorm Wind in LARUE, KENTUCKY
From 26-JUL-14 21:50:00 to 26-JUL-14 21:50:00 (EST-5)
Location: MAGNOLIA
Magnitude: 52.00 EG
Crop damage: 0.00K
Reported by: Law Enforcement

Local law enforcement reported a tree down near Highway 31N near the Hart County line.

Hail in HARRISON, KENTUCKY
From 27-JUL-14 11:49:00 to 27-JUL-14 11:49:00 (EST-5)
Location: CYNTHIANA
Magnitude: 1.00 
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in HARDIN, KENTUCKY
From 26-JUL-14 21:05:00 to 26-JUL-14 21:05:00 (EST-5)
Location: WEST PT
Magnitude: 52.00 EG
Crop damage: 0.00K
Reported by: NWS Employee

A NWS employee reported power lines down across Main Street at West Point. Several miles away, at nearly the same time, a 59 mph wind gust was measured by the ASOS at the Fort Knox airport.

Thunderstorm Wind in HARDIN, KENTUCKY
From 26-JUL-14 21:15:00 to 26-JUL-14 21:15:00 (EST-5)
Location: ROGERSVILLE
Magnitude: 52.00 EG
Crop damage: 0.00K
Reported by: Amateur Radio

Several trees were downed near Radcliff. One tree fell across State Highway 1500 near Highway 313.

Thunderstorm Wind in MADISON, KENTUCKY
From 26-JUL-14 23:05:00 to 26-JUL-14 23:05:00 (EST-5)
Location: RICHMOND
Magnitude: 52.00 EG
Crop damage: 0.00K
Reported by: Broadcast Media

A tree was downed just north of Richmond.

Thunderstorm Wind in JEFFERSON, KENTUCKY
From 26-JUL-14 21:20:00 to 26-JUL-14 21:20:00 (EST-5)
Location: FERN CREEK
Magnitude: 52.00 EG
Crop damage: 0.00K
Reported by: Public

The public reported trees down in Fern Creek. A nearly the same time, a 56 mph wind gust was measured by an unofficial wind sensor at the NWS office in Louisville. The ASOS at Standiford airport in Louisville measured a 52 mph wind gust.

Thunderstorm Wind in MADISON, KENTUCKY
From 26-JUL-14 23:05:00 to 26-JUL-14 23:05:00 (EST-5)
Location: MIDDLETOWN
Magnitude: 52.00 EG
Crop damage: 0.00K
Reported by: Broadcast Media

Local media reported several trees down near Berea.

Thunderstorm Wind in LINCOLN, KENTUCKY
From 26-JUL-14 22:55:00 to 26-JUL-14 22:55:00 (EST-5)
Location: WAYNESBURG
Magnitude: 52.00 EG
Crop damage: 0.00K
Reported by: Law Enforcement

Local law enforcement reported a large tree down, blocking Clear Fork Road.

Thunderstorm Wind in BULLITT, KENTUCKY
From 26-JUL-14 21:22:00 to 26-JUL-14 21:22:00 (EST-5)
Location: SHEPHERDSVILLE
Magnitude: 52.00 EG
Crop damage: 0.00K
Reported by: Law Enforcement

Shelby County emergency management reported trees and power lines down countywide. The Kentucky Mesonet site 6 miles southeast of Shepherdsville measured a 53 mph wind gust.

Thunderstorm Wind in LARUE, KENTUCKY
From 27-JUL-14 04:35:00 to 27-JUL-14 04:35:00 (EST-5)
Location: BUFFALO
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

An NWS employee reported two trees down just to the northeast of Buffalo.

Thunderstorm Wind in RUSSELL, KENTUCKY
From 27-JUL-14 12:15:00 to 27-JUL-14 12:15:00 (CST-6)
Location: DENT
Magnitude: 52.00 EG
Crop damage: 0.00K
Reported by: Department of Highways

The county road crew noted that several trees were downed off of State Highway 42 just west of Russell Springs. At the same time, nickel sized hail fell in Russell Springs.

Flash Flood in MEADE, KENTUCKY
From 27-JUL-14 05:30:00 to 27-JUL-14 05:30:00 (EST-5)
Location: MIDWAY
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 20.00K
Reported by: Emergency Manager

A second round of thunderstorms within a 5 hour period brought flash flooding to an area just southwest of Brandenburg. A man was rescued by small boat from his home near the intersection of State Highways 79 and 1239. Five feet of water had entered his home.

Hail in SPENCER, KENTUCKY
From 27-JUL-14 10:12:00 to 27-JUL-14 10:12:00 (EST-5)
Location: TAYLORSVILLE
Magnitude: 1.50 
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in BRECKINRIDGE, KENTUCKY
From 26-JUL-14 19:47:00 to 26-JUL-14 19:47:00 (CST-6)
Location: IRVINGTON
Magnitude: 52.00 EG
Crop damage: 0.00K
Reported by: Amateur Radio

A report arrived via amateur radio that trees and power lines were down across the county.

Thunderstorm Wind in MEADE, KENTUCKY
From 26-JUL-14 20:55:00 to 26-JUL-14 20:55:00 (EST-5)
Location: BRANDENBURG
Magnitude: 52.00 EG
Crop damage: 0.00K
Reported by: Law Enforcement

Local law enforcement noted numerous trees and power lines downed across the county.