Winter Storm, Allegany
- When
- February 18, 3:00 AM EST to 2:00 PM EST
- Where
- Allegany forecast zone
- Reported by
- OFFICIAL NWS OBS.
Winter Storm and Winter Weather in Maryland, February 18, 2000
Low pressure tracked from the Mid-Mississippi Valley to Pennsylvania on the 18th, spreading a mixed bag of precipitation across Western and North Central Maryland. Light snow spread into the area before dawn then changed to freezing rain by mid-morning.
Where it happened
Every event with a place to put it; 5 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
The toll
- Deaths
- 0
- Injuries
- 0
- Property damage
- None recorded
- Crop damage
- None recorded
- Events
- 9
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.
What happened
The episode as NWS LWX wrote it up.
Low pressure tracked from the Mid-Mississippi Valley to Pennsylvania on the 18th, spreading a mixed bag of precipitation across Western and North Central Maryland. Light snow spread into the area before dawn then changed to freezing rain by mid-morning. The precipitation changed to rain across the area by early afternoon. Several traffic accidents occurred on slippery roads, and minor delays were reported at Baltimore/Washington International Airport. Ice accumulations included three quarters of an inch in Allegany County, one half inch in Washington County, between one quarter and one half inch in Carroll, Montgomery, and Northern Baltimore Counties; and less than one quarter inch in Frederick, Howard, Southern Baltimore, and Harford Counties. Snowfall amounts ranged from 1 to 3 inches.
The radar
The national radar mosaic for the moment the first event began.
Event by event
5 winter storm, 4 winter weather. Local standard time, as filed.
Winter Storm, Washington
- When
- February 18, 3:00 AM EST to 2:00 PM EST
- Where
- Washington forecast zone
- Reported by
- OFFICIAL NWS OBS.
- Coordinates
- 39.604, -77.814 (the zone’s center; the record gives no point)
Winter Storm, Carroll
- When
- February 18, 3:00 AM EST to 2:00 PM EST
- Where
- Carroll forecast zone
- Reported by
- TRAINED SPOTTER
- Coordinates
- 39.563, -77.022 (the zone’s center; the record gives no point)
Winter Storm, Northern Baltimore
- When
- February 18, 3:00 AM EST to 2:00 PM EST
- Where
- Northern Baltimore forecast zone
- Reported by
- TRAINED SPOTTER
- Coordinates
- 39.443, -76.616 (the zone’s center; the record gives no point)
Winter Storm, Montgomery
- When
- February 18, 3:00 AM EST to 2:00 PM EST
- Where
- Montgomery forecast zone
- Reported by
- TRAINED SPOTTER
Winter Weather, Frederick
- When
- February 18, 6:00 AM EST to 12:00 PM EST
- Where
- Frederick forecast zone
- Reported by
- OFFICIAL NWS OBS.
- Coordinates
- 39.472, -77.398 (the zone’s center; the record gives no point)
Winter Weather, Harford
- When
- February 18, 6:00 AM EST to 12:00 PM EST
- Where
- Harford forecast zone
- Reported by
- TRAINED SPOTTER
Winter Weather, Howard
- When
- February 18, 6:00 AM EST to 12:00 PM EST
- Where
- Howard forecast zone
- Reported by
- TRAINED SPOTTER
Winter Weather, Southern Baltimore / Baltimore (C)
- When
- February 18, 6:00 AM EST to 12:00 PM EST
- Where
- Southern Baltimore / Baltimore (C) forecast zone
- Reported by
- TRAINED SPOTTER
- Coordinates
- 39.367, -76.614 (the zone’s center; the record gives no point)
What these are
- 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.
The same day elsewhere
- Flash Flooding and Flooding in West Virginia, February 18 to 21, 2000
- Flash Flooding and Flooding in Ohio, February 18 to 21, 2000
- Flash Flooding in Kentucky, February 18, 2000
- Winter Storm in New York, February 18 to 19, 2000
- Flash Flooding in Kentucky, February 18, 2000
- Flash Flooding and Flooding in Pennsylvania, February 18 to 20, 2000
- Flash Flooding and Flooding in West Virginia, February 18 to 19, 2000
- Flash Flooding and Flooding in Ohio, February 18 to 19, 2000
- Flash Flooding and Flooding in Kentucky, February 18 to 21, 2000
- Tornado in Arkansas, February 18, 2000
- Flash Flood in Kentucky, February 18, 2000
- Tornadoes and Hail in Mississippi, February 18, 2000
More
Every storm in Maryland in 2000Every state in 2000This day in weather historyWarnings in Maryland, February 2000
Sources
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 2026-09-24. Each event’s entry at NCEI: 5132213, 5132214, 5132215, 5132216, 5132286, 5132287, 5132288, 5132289, 5132290.