Maryland, 2000

Damaging Wind and Heavy Rain in Maryland, August 4, 2000

August 4, 2000 · NWS LWX · 4 events in 4 counties and zones

Thunderstorms that produced brief heavy rainfall and gusty winds moved across south central Maryland during the afternoon of the 4th. In Charles County, trees and power lines were downed and hail of unknown size fell.

Where it happened

Every event with a place to put it; 3 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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The toll

Deaths
0
Injuries
0
Property damage
$2,000
Crop damage
None recorded
Events
4

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.

Thunderstorms that produced brief heavy rainfall and gusty winds moved across south central Maryland during the afternoon of the 4th. In Charles County, trees and power lines were downed and hail of unknown size fell. In Anne Arundel County, a total of 2.70 inches of rain fell in Annapolis. Road flooding was reported in Mayo and Potomac. In Calvert County, 2.37 inches of rain fell on Solomon's Island. In St. Mary's County, 1.67 inches of rain fell in California.

The radar

The national radar mosaic for the moment the first event began.

Open the radar archive at this moment

Event by event

3 heavy rain, 1 thunderstorm wind. Local standard time, as filed.

Heavy Rain, Anne Arundel

When
August 4, 2:00 PM EST to 4:00 PM EST
Where
Anne Arundel County, Countywide
Reported by
TRAINED SPOTTER
Coordinates
38.994, -76.568 (the zone’s center; the record gives no point)

Heavy Rain, Calvert

When
August 4, 2:00 PM EST to 4:00 PM EST
Where
Calvert County, Countywide
Reported by
TRAINED SPOTTER
Coordinates
38.535, -76.531 (the zone’s center; the record gives no point)

Heavy Rain, St. Mary'S

When
August 4, 2:00 PM EST to 4:00 PM EST
Where
St. Mary'S County, Countywide
Reported by
TRAINED SPOTTER
Coordinates
38.216, -76.529 (the zone’s center; the record gives no point)

Thunderstorm Wind, Charles

When
August 4, 2:45 PM EST
Where
Charles County, Countywide
Property damage
$2,000
Reported by
LAW ENFORCEMENT
Coordinates
38.500, -76.933

Trees and power lines were downed.

What these are

Heavy Rain
Rainfall totals unusual for the place and season that did not produce a flood.
Thunderstorm Wind
Winds from a thunderstorm of 50 knots (58 mph) or more, or lower winds that caused damage or casualties. Measured gusts are marked MG, estimated EG.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

More

Every storm in Maryland in 2000Every state in 2000This day in weather historyWarnings in Maryland, August 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: 5173446, 5173447, 5173448, 5173449.