Maryland, 2011Winter Storm and Winter Weather in Maryland, January 17 to 18, 2011
January 17 to 18, 2011 · NWS LWX · 14 events in 13 counties and zones
Low pressure tracked up the Mid-Atlantic Coast on the 17th before moving toward New England on the 18th. Precipitation overspread the area on the night of the 17th ahead of the low.
Every event with a place to put it; 11 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.
- Tornadoes
- Tropical storms and surge
- Floods
- Wind
- Hail
- Winter weather
- Heat and drought
- Cold
- Fire, smoke and dust
- Marine and coastal
- Other
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- Deaths
- 0
- Injuries
- 0
- Property damage
- None recorded
- Crop damage
- None recorded
- Events
- 14
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.
Low pressure tracked up the Mid-Atlantic Coast on the 17th before moving toward New England on the 18th. Precipitation overspread the area on the night of the 17th ahead of the low. Warmer air was drawn into the system, but cold high pressure over New England kept enough low-level cold air in place for a prolonged period of frozen precipitation into the early morning hours of the 18th.
Winter Storm, Southern Baltimore
- When
- January 17, 8:00 PM EST to January 18, 5:00 AM EST
- Where
- Southern Baltimore forecast zone
- Reported by
- Trained Spotter
- Coordinates
- 39.367, -76.614 (the zone’s center; the record gives no point)
A quarter inch of ice was reported due to freezing rain at Dundalk.
Winter Storm, Howard
- When
- January 17, 8:00 PM EST to January 18, 5:00 AM EST
- Where
- Howard forecast zone
- Reported by
- Trained Spotter
A quarter inch of ice was reported due to freezing rain near Ellicott City.
Winter Storm, Montgomery
- When
- January 17, 8:00 PM EST to January 18, 5:00 AM EST
- Where
- Montgomery forecast zone
- Reported by
- Trained Spotter
A quarter inch of ice was reported due to freezing rain near Damascus.
Winter Weather, Anne Arundel
- When
- January 17, 8:00 PM EST to January 18, 5:00 AM EST
- Where
- Anne Arundel forecast zone
- Reported by
- Trained Spotter
- Coordinates
- 38.994, -76.568 (the zone’s center; the record gives no point)
Snowfall totaled up to less than one half inch across the county. Ice accumulation from freezing rain was around two tenths of an inch near Riva.
Winter Weather, Prince Georges
- When
- January 17, 8:00 PM EST to January 18, 5:00 AM EST
- Where
- Prince Georges forecast zone
- Reported by
- Trained Spotter
- Coordinates
- 38.830, -76.847 (the zone’s center; the record gives no point)
Snowfall totaled up to one half inch at Bowie and ice accumulation from freezing rain averaged between one and two tenths across the county.
Winter Weather, Calvert
- When
- January 17, 8:00 PM EST to January 18, 5:00 AM EST
- Where
- Calvert forecast zone
- Reported by
- Trained Spotter
- Coordinates
- 38.535, -76.531 (the zone’s center; the record gives no point)
Ice accumulation from freezing rain was around two tenths of an inch near Huntingtown.
Winter Weather, St. Mary'S
- When
- January 17, 8:00 PM EST to January 18, 5:00 AM EST
- Where
- St. Mary'S forecast zone
- Reported by
- Trained Spotter
- Coordinates
- 38.216, -76.529 (the zone’s center; the record gives no point)
Ice accumulation from freezing rain was around one tenth of an inch near Cuckold Creek.
Winter Weather, Charles
- When
- January 17, 8:00 PM EST to January 18, 5:00 AM EST
- Where
- Charles forecast zone
- Reported by
- Trained Spotter
- Coordinates
- 38.474, -77.013 (the zone’s center; the record gives no point)
Ice accumulation from freezing rain was around two tenths of an inch near Bryans Road.
Winter Weather, Washington
- When
- January 17, 8:00 PM EST to January 18, 5:00 AM EST
- Where
- Washington forecast zone
- Reported by
- Trained Spotter
- Coordinates
- 39.604, -77.814 (the zone’s center; the record gives no point)
Snowfall averaged between two and three inches across the county.
Winter Weather, Harford
- When
- January 17, 8:00 PM EST to January 18, 5:00 AM EST
- Where
- Harford forecast zone
- Reported by
- Trained Spotter
Snowfall totaled up to 1.8 inches at Bel Air. Ice accumulation of fifteen hundredths of an inch was also reported at Bel Air.
Winter Weather, Northern Baltimore
- When
- January 17, 8:00 PM EST to January 18, 5:00 AM EST
- Where
- Northern Baltimore forecast zone
- Reported by
- Trained Spotter
- Coordinates
- 39.443, -76.616 (the zone’s center; the record gives no point)
Snowfall totaled up to 1.9 inches about four miles north of Cockeysville.
Winter Weather, Carroll
- When
- January 17, 8:00 PM EST to January 18, 5:00 AM EST
- Where
- Carroll forecast zone
- Reported by
- Trained Spotter
- Coordinates
- 39.563, -77.022 (the zone’s center; the record gives no point)
Snowfall totaled up to 3.0 inches about four miles northeast of Taneytown. Ice accumulation from freezing rain was around one tenth of an inch near Eldersburg and Westminster.
Winter Weather, Frederick
- When
- January 17, 8:00 PM EST to January 18, 5:00 AM EST
- Where
- Frederick forecast zone
- Reported by
- CoCoRaHS
- Coordinates
- 39.472, -77.398 (the zone’s center; the record gives no point)
Snowfall totaled up to 4.0 inches near Frederick.
Winter Storm, Anne Arundel
- When
- January 17, 8:00 PM EST to January 18, 5:00 AM EST
- Where
- Anne Arundel forecast zone
- Reported by
- Public
- Coordinates
- 38.994, -76.568 (the zone’s center; the record gives no point)
Ice accumulation from freezing rain was one quarter of an inch at Fort Meade.
- Winter Storm
- A storm that brought snow, sleet or freezing rain at warning levels, usually over several hours or days.
- Winter Weather
- Snow, sleet or freezing rain below warning levels that still caused disruption, damage or casualties.
After NWS Directive 10-1605, the rules offices file Storm Data by.
- Winter Weather in Wisconsin, January 17, 20112 deaths · 8 injured · 20 events
- Winter Weather in South Dakota, January 17 to 18, 20111 death · 1 event
- Winter Storm and Winter Weather in New Jersey, January 17 to 18, 20115 injured · 16 events
- Winter Weather in Delaware, January 17 to 18, 20115 injured · 2 events
- Flooding in Idaho, January 17, 2011$25,000 · 2 events
- Winter Weather in Iowa, January 17, 201121 events
- Winter Weather in Illinois, January 17, 201111 events
- Tornado and Damaging Wind in Florida, January 17, 2011$15,000 · EF0 · 2 events
- Winter Weather in Arkansas, January 17, 20111 injured · 2 events
- Winter Storm and Winter Weather in Pennsylvania, January 17 to 18, 201110 events
- Winter Weather in Illinois, January 17, 20111 injured · 1 event
- Winter Weather in North Carolina, January 17 to 18, 20119 events
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: 278590, 278591, 278593, 278596, 278597, 278598, 278599, 278600, 278601, 278602, 278603, 278604, 278606, 278685.