Isolated severe thunderstorms developed across western Kentucky during the evening hours. The storms developed ahead of a cold front in a destabilizing air mass characterized by dew points in the lower to mid 60's. The supercell storms awaited the approach of a mid-level impulse from Oklahoma, which was downstream from the primary shortwave trough over the Plains. A southwesterly low-level jet increased substantially during the evening. A couple of tornadoes were produced in southwest Kentucky, along with a few reports of hail and damaging wind. Outside of the thunderstorm activity, some of the southwest winds aloft mixed down to the surface in the form of gusts from 40 to 50 mph, and an isolated gradient wind gust to 65 mph was measured on a hill near Calvert City in Marshall County.

Thunderstorm Wind in CALLOWAY, KENTUCKY
From 28-FEB-17 22:55:00 to 28-FEB-17 22:55:00 (CST-6)
Location: MURRAY
Magnitude: 61.00 EG
Property damage: 15.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A power pole was down on a building on the west side of Murray. There was also minor roof damage to a structure.

Thunderstorm Wind in TRIGG, KENTUCKY
From 28-FEB-17 23:07:00 to 28-FEB-17 23:07:00 (CST-6)
Location: CERULEAN
Magnitude: 52.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter reported a wind gust to 60 mph.

Tornado in GRAVES, KENTUCKY
From 28-FEB-17 22:35:00 to 28-FEB-17 22:42:00 (CST-6)
Location: FAIRBANKS
Tornado F-scale: EF0
Property damage: 35.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

This weak tornado formed along the Tennessee state line, then tracked northeast across the southeast corner of Graves County. It passed through farmland and wooded areas. Many trees were snapped or uprooted. There was minor damage to barn roofs. Peak winds were estimated near 75 mph. The tornado continued into Calloway County.

Tornado in CALLOWAY, KENTUCKY
From 28-FEB-17 22:42:00 to 28-FEB-17 22:47:00 (CST-6)
Location: TAYLORS STORE
Tornado F-scale: EF0
Property damage: 35.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

This weak tornado crossed from Graves County into Calloway County. The path was through farmlands and woods. Many trees were downed, and some barn roofs received minor damage. Peak winds were estimated near 75 mph.

Tornado in TRIGG, KENTUCKY
From 28-FEB-17 23:28:00 to 28-FEB-17 23:38:00 (CST-6)
Location: DONALDSON
Tornado F-scale: EF1
Property damage: 300.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

The tornado formed a few miles east of Lake Barkley, then tracked northeast. The tornado lifted well southeast of Cadiz. Hundreds of trees were snapped or uprooted, and one grain bin was destroyed. There was major structural damage to numerous barns. Many homes received minor to moderate siding or roof damage.  Peak winds were estimated near 105 mph.

Hail in CALLOWAY, KENTUCKY
From 28-FEB-17 22:45:00 to 28-FEB-17 22:45:00 (CST-6)
Location: MURRAY
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

High Wind in MARSHALL, KENTUCKY
From 28-FEB-17 21:00:00 to 28-FEB-17 23:00:00 (CST-6)
Magnitude: 56.00 MG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: NWS Employee

A wind gust to 65 mph was measured atop a hill overlooking the interchange of Interstate 24 and Interstate 69, near Calvert City. These strong gradient winds were not associated with thunderstorms or any convective precipitation.

Strong Wind in MCCRACKEN, KENTUCKY
From 28-FEB-17 20:30:00 to 28-FEB-17 22:30:00 (CST-6)
Magnitude: 35.00 MG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: ASOS

Strong Wind in HOPKINS, KENTUCKY
From 28-FEB-17 22:00:00 to 28-FEB-17 23:45:00 (CST-6)
Magnitude: 43.00 MG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Strong Wind in CHRISTIAN, KENTUCKY
From 28-FEB-17 22:00:00 to 28-FEB-17 23:45:00 (CST-6)
Magnitude: 38.00 MG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: AWOS