Canadian high pressure build over the Potomac Highlands of Virginia during the early morning hours of the 5th. Mainly clear skies along with light winds allowed temperatures to drop below freezing during this time.
Every event with a place to put it; 2 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS LWX wrote it up.
Canadian high pressure build over the Potomac Highlands of Virginia during the early morning hours of the 5th. Mainly clear skies along with light winds allowed temperatures to drop below freezing during this time.
The national radar mosaic for the moment the first event began.
2 frost/freeze. Local standard time, as filed.
Temperatures were estimated to be in the upper 20s.
Temperatures were estimated to be in the upper 20s.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Virginia in 2011Every state in 2011This day in weather historyWarnings in Virginia, May 2011
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-10-01. Each event’s entry at NCEI: 314981, 314982.