A cold air mass already in place combined with an anomalous low pressure system to produce an early season freezing rain event across central Kentucky and southern Indiana.  Many locations received between a tenth and a quarter of an inch of ice accumulating on trees/shrubs and other elevated surfaces.  Warm ground temperatures kept most roads ice free, though some bridges had slick spots.
The ice on the trees, many of which still had leaves that helped to weigh them down, caused several limbs/branches to snap and some trees to fall.  There were many reports of power flashes overnight as branches hit transformers.  At the peak of the event, over 100,000 customers were without power in the region.  One utility company serving much of central Kentucky reported that it was one of the top 10 costliest outages in it's history.

Ice Storm in BUTLER, KENTUCKY
From 14-NOV-18 20:43:00 to 15-NOV-18 05:00:00 (CST-6)
Crop damage: 0.00K
Reported by: Emergency Manager

The Emergency Manager in Butler County, Kentucky, reported that 1,200 customers were without power due to ice accumulation on power lines. Roads were slick. He measured 0.25 inches of ice on shrubbery and tall grasses. He saw a large tree pull a power line completely out when it fell.

Ice Storm in GRAYSON, KENTUCKY
From 14-NOV-18 22:20:00 to 15-NOV-18 05:00:00 (CST-6)
Crop damage: 0.00K
Reported by: Emergency Manager

Nearly 4,000 customers lost power after ice brought down trees and power lines.

Ice Storm in HARDIN, KENTUCKY
From 14-NOV-18 23:35:00 to 15-NOV-18 05:00:00 (EST-5)
Crop damage: 0.00K
Reported by: Emergency Manager

There were nearly 6,000 without power around the county.

Ice Storm in HARDIN, KENTUCKY
From 15-NOV-18 05:25:00 to 15-NOV-18 05:25:00 (EST-5)
Crop damage: 0.00K
Reported by: Department of Highways

Several trees were down blocking two lanes of Bardstown Road near Stovall Road. One tree fell on a fire truck. The time of the tree falling on the truck is unknown.

Ice Storm in HARDIN, KENTUCKY
From 15-NOV-18 09:09:00 to 15-NOV-18 09:09:00 (EST-5)
Crop damage: 0.00K
Reported by: NWS Employee

Ice was estimated to be 0.25 inches thick. That ice brought down many tree branches in the area.

Ice Storm in OLDHAM, KENTUCKY
From 14-NOV-18 23:00:00 to 15-NOV-18 06:00:00 (EST-5)
Crop damage: 0.00K
Reported by: Emergency Manager

There were approximately 1,700 customers without power due to ice bringing down lines.

Ice Storm in EDMONSON, KENTUCKY
From 15-NOV-18 01:12:00 to 15-NOV-18 06:12:00 (EST-5)
Crop damage: 0.00K
Reported by: Public

Several trees were reported down in the county due to icing.

Ice Storm in OHIO, KENTUCKY
From 14-NOV-18 22:37:00 to 15-NOV-18 06:00:00 (CST-6)
Crop damage: 0.00K
Reported by: Trained Spotter

Reports of 0.1 to 0.2 inches of ice had accumulated on elevated surfaces, trees, and power lines.

Ice Storm in BULLITT, KENTUCKY
From 14-NOV-18 20:43:00 to 15-NOV-18 06:08:00 (EST-5)
Crop damage: 0.00K
Reported by: Emergency Manager

There were nearly 5,000 customers without power all over the county due to icing.

Ice Storm in NELSON, KENTUCKY
From 14-NOV-18 20:43:00 to 15-NOV-18 06:32:00 (EST-5)
Crop damage: 0.00K
Reported by: Public

There were nearly 1,800 reported without power across the county due to icing.

Ice Storm in SHELBY, KENTUCKY
From 14-NOV-18 20:43:00 to 15-NOV-18 06:08:00 (EST-5)
Crop damage: 0.00K
Reported by: Emergency Manager

It was reported that nearly 2,000 customers were without power due to icing.

Ice Storm in FAYETTE, KENTUCKY
From 14-NOV-18 20:43:00 to 15-NOV-18 06:08:00 (EST-5)
Crop damage: 0.00K
Reported by: Emergency Manager

There were 2,400 customers without power across the county due to icing.

Ice Storm in JEFFERSON, KENTUCKY
From 14-NOV-18 22:00:00 to 15-NOV-18 06:00:00 (EST-5)
Crop damage: 0.00K
Reported by: NWS Employee

An NWS employee measured 0.20 inches of ice on a branch. Widespread trees and branches were brought down due to icing. Roadways were blocked, and structure damage was seen.

Ice Storm in MEADE, KENTUCKY
From 14-NOV-18 21:00:00 to 15-NOV-18 06:00:00 (EST-5)
Crop damage: 0.00K
Reported by: Public

Several full trees were reported down with limbs cracked and snapped.

Ice Storm in HART, KENTUCKY
From 14-NOV-18 22:00:00 to 15-NOV-18 06:00:00 (EST-5)
Crop damage: 0.00K
Reported by: Trained Spotter

It was reported that 0.25 inches of ice was bringing small to medium size tree limbs down and causing power outages.

Ice Storm in TAYLOR, KENTUCKY
From 14-NOV-18 22:00:00 to 15-NOV-18 06:00:00 (EST-5)
Crop damage: 0.00K
Reported by: Public

Some power outages were reported in Taylor County due to icing. Ice was reported to be an eighth of an inch thick at 11:26 pm.

Ice Storm in HENRY, KENTUCKY
From 14-NOV-18 22:00:00 to 15-NOV-18 08:00:00 (EST-5)
Crop damage: 0.00K
Reported by: COOP Observer

Dispatch reported trees were down blocking roads in the county. Estimated 0.2-0.3 inches of glaze on elevated surfaces around 6 am on the 15th. There were isolated slick spots on area roads.