The atmosphere quickly became very unstable on the afternoon of May 26th, which resulted in the development of severe thunderstorms, mainly in the mountains and foothills. These storms were primarily large  hail producers. Also, A derecho-like feature crossed Franklin and Henry counties causing some significant damage. In addition, rainfall of 1 to 3 inches fell in a swath from Grayson County northeast all the way to Alleghany County causing isolated flash flooding.

Thunderstorm Wind in PULASKI, VIRGINIA
From 26-MAY-11 20:30:00 to 26-MAY-11 20:30:00 (EST-5)
Location: FAIRLAWN
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: State Official

Several trees were downed by thunderstorm winds on Hazel Hollow Road.

Hail in BATH, VIRGINIA
From 26-MAY-11 16:30:00 to 26-MAY-11 16:35:00 (EST-5)
Location: MOUNTAIN GROVE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail size ranged from dime to quarter size.

Hail in WYTHE, VIRGINIA
From 26-MAY-11 18:10:00 to 26-MAY-11 18:15:00 (EST-5)
Location: GOVERNMENT SIDING
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

A local radio station reported hail on W. Lee Highway.

Hail in WYTHE, VIRGINIA
From 26-MAY-11 18:38:00 to 26-MAY-11 18:45:00 (EST-5)
Location: MAX MEADOWS
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail was reported on Carterville Heights Road.

Hail in PULASKI, VIRGINIA
From 26-MAY-11 19:05:00 to 26-MAY-11 19:10:00 (EST-5)
Location: HIGHLAND
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in BLAND, VIRGINIA
From 26-MAY-11 19:02:00 to 26-MAY-11 19:07:00 (EST-5)
Location: CERES
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm Wind in TAZEWELL, VIRGINIA
From 26-MAY-11 19:20:00 to 26-MAY-11 19:20:00 (EST-5)
Location: BLUEFIELD
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A tree was blow down near Hillcrest Lane.

Hail in CARROLL, VIRGINIA
From 26-MAY-11 18:55:00 to 26-MAY-11 18:55:00 (EST-5)
Location: PIPERS GAP
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in FLOYD, VIRGINIA
From 26-MAY-11 19:15:00 to 26-MAY-11 19:17:00 (EST-5)
Location: ALUM RIDGE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in MONTGOMERY, VIRGINIA
From 26-MAY-11 20:00:00 to 26-MAY-11 20:00:00 (EST-5)
Location: SHAWSVILLE
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in GILES, VIRGINIA
From 26-MAY-11 19:22:00 to 26-MAY-11 19:25:00 (EST-5)
Location: KLOTZ
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail fell along Turnpike Road in Ripplemead.

Thunderstorm Wind in GILES, VIRGINIA
From 26-MAY-11 19:24:00 to 26-MAY-11 19:30:00 (EST-5)
Location: KLOTZ
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Strong winds from a thunderstorm brought down trees on State Route 636 and Route 623.

Hail in GRAYSON, VIRGINIA
From 26-MAY-11 19:40:00 to 26-MAY-11 19:45:00 (EST-5)
Location: INDEPENDENCE
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail fell along Graystone Road.

Thunderstorm Wind in GRAYSON, VIRGINIA
From 26-MAY-11 19:40:00 to 26-MAY-11 19:40:00 (EST-5)
Location: INDEPENDENCE
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A couple of large trees were blown down.

Hail in WYTHE, VIRGINIA
From 26-MAY-11 19:46:00 to 26-MAY-11 19:46:00 (EST-5)
Location: LOTS GAP
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail reported on Archer Road.

Hail in PATRICK, VIRGINIA
From 26-MAY-11 22:18:00 to 26-MAY-11 22:18:00 (EST-5)
Location: MEADOWS OF DAN
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in PATRICK, VIRGINIA
From 26-MAY-11 22:45:00 to 26-MAY-11 22:55:00 (EST-5)
Location: CRITZ
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail up to quarter size though most was smaller and lasted close to 15 minutes.

Thunderstorm Wind in PATRICK, VIRGINIA
From 26-MAY-11 22:49:00 to 26-MAY-11 22:49:00 (EST-5)
Location: CRITZ
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: State Official

A tree was blown down on Abram Penn Highway near Critz.

Hail in CARROLL, VIRGINIA
From 26-MAY-11 21:29:00 to 26-MAY-11 21:29:00 (EST-5)
Location: LAMBSBURG
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail was reported to have fallen on Holly Grove Road.

Hail in ALLEGHANY, VIRGINIA
From 26-MAY-11 21:22:00 to 26-MAY-11 21:27:00 (EST-5)
Location: LOWMOOR
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in HENRY, VIRGINIA
From 26-MAY-11 22:55:00 to 26-MAY-11 23:20:00 (EST-5)
Location: MARTINSVILLE AIRPORT
Magnitude: 60.00 EG
Property damage: 135.00K
Crop damage: 0.00K
Reported by: State Official

Trees were blown down across Henry County, with the highest winds and most damage reported in the northern half of the county. Numerous power outages were reported with damage to power lines and poles in more than 70 locations. mostly in the Fieldale area.
There was severe damage to several buildings at Martin Stables in eastern Henry County with damage estimated at $100,000.00 by the owner.

Flash Flood in GRAYSON, VIRGINIA
From 26-MAY-11 21:30:00 to 26-MAY-11 22:00:00 (EST-5)
Location: CARSONVILLE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A mudslide occurred on Route 274 between Independence and Fries as 2 to 4 inches of rain fell in several hours.

Thunderstorm Wind in GRAYSON, VIRGINIA
From 26-MAY-11 21:20:00 to 26-MAY-11 21:20:00 (EST-5)
Location: STEVENS CREEK
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

A tree was reported down on Winding Road and on Stevens Creek Road.

Lightning in HENRY, VIRGINIA
From 26-MAY-11 23:04:00 to 26-MAY-11 23:04:00 (EST-5)
Location: BASSETT FORKS
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Newspaper

The Emergency Manager for Henry County reported an outbuilding destroyed by fire caused by lightning on Richardson Road.

Thunderstorm Wind in ALLEGHANY, VIRGINIA
From 26-MAY-11 21:33:00 to 26-MAY-11 21:43:00 (EST-5)
Location: CLIFTON FORGE CITY
Magnitude: 55.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Trees were brought down by storms near Clifton Forge and continuing along I-64 to near Longdale Furnace.

Thunderstorm Wind in BEDFORD, VIRGINIA
From 26-MAY-11 23:30:00 to 26-MAY-11 23:40:00 (EST-5)
Location: HARDY
Magnitude: 55.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Trees were reported down at several locations as a derecho crossed into the county but then weakened.

Thunderstorm Wind in FRANKLIN, VIRGINIA
From 26-MAY-11 23:10:00 to 26-MAY-11 23:35:00 (EST-5)
Location: ENDICOTT
Magnitude: 60.00 EG
Property damage: 50.00K
Crop damage: 0.00K
Reported by: County Official

A powerful derecho crossed the county in about a half hour bringing widespread damage to trees and pockets of property damage. Approximately 50 trees were blown down around the intersection of Virgil Goode Highway and Crooked Oak Road. Later newspaper reports described a roof blown off a trailer at McNeil Mill Road and Sontag Road; a large tree fallen onto a house in Sontag; a roof ripped off a large garage on Goose Dam Road and near Penhook large trees blow down and camping vehicles damaged in a campground.

Thunderstorm Wind in MONTGOMERY, VIRGINIA
From 26-MAY-11 19:54:00 to 26-MAY-11 20:04:00 (EST-5)
Location: WAKE FOREST
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Several trees reported down in northwest part of the county.

Hail in CARROLL, VIRGINIA
From 26-MAY-11 19:05:00 to 26-MAY-11 19:05:00 (EST-5)
Location: WOODLAWN
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in MONTGOMERY, VIRGINIA
From 26-MAY-11 19:47:00 to 26-MAY-11 19:47:00 (EST-5)
Location: HOUCHINS
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in MONTGOMERY, VIRGINIA
From 26-MAY-11 19:40:00 to 26-MAY-11 19:40:00 (EST-5)
Location: ROGERS
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm Wind in FRANKLIN, VIRGINIA
From 26-MAY-11 22:41:00 to 26-MAY-11 22:41:00 (EST-5)
Location: ENDICOTT
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: State Official

Thunderstorm winds brought down a tree on Johnnys Ridge Road.

Hail in CARROLL, VIRGINIA
From 26-MAY-11 19:04:00 to 26-MAY-11 19:04:00 (EST-5)
Location: WOODLAWN
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail ranging from nickel to ping-pong ball size fell mainly south of Woodlawn.

Hail in MONTGOMERY, VIRGINIA
From 26-MAY-11 19:30:00 to 26-MAY-11 19:30:00 (EST-5)
Location: PILOT
Magnitude: 1.75 
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Trained Spotter