Maryland, 2000

Flash Flooding and Damaging Wind in Maryland, July 15, 2000

July 15, 2000 · NWS LWX · 6 events in 4 counties and zones

Showers and thunderstorms which produced heavy rainfall and gusty winds moved across central Maryland during the afternoon and evening of the 15th. In St.

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

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The toll

Deaths
0
Injuries
0
Property damage
$45,000
Crop damage
None recorded
Events
6

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.

Showers and thunderstorms which produced heavy rainfall and gusty winds moved across central Maryland during the afternoon and evening of the 15th. In St. Mary's County, several roads were flooded by heavy downpours. Rainfall totals included 2.47 inches in Tall Timbers, 2.34 inches in Hollywood, 2.27 inches in Ridge, 2.23 inches in Morganza, and 2.22 inches in Oraville where a wind gust of 46 MPH was recorded. In Anne Arundel County, cars were stalled on flooded roadways in Annapolis after 1.20 inches of rain fell in 20 minutes. A police car was found floating down a waterlogged county road. A lightning strike started a fire which damaged a home in Millersville and a townhome in Crofton. In Carroll County, 1.74 inches of rain fell in Millers. In Baltimore County, 1.76 inches fell in Parkton. In Harford County, winds in excess of 55 MPH downed trees onto Rocks Chrome, Berkeley, and Castleton Roads.

The radar

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

Open the radar archive at this moment

Event by event

2 flash flood, 2 lightning, 1 heavy rain, 1 thunderstorm wind. Local standard time, as filed.

Flash Flood, St. Mary'S

When
July 15, 11:00 AM EST to 1:00 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)

Roads were flooded.

Heavy Rain, Carroll

When
July 15, 11:00 AM EST to 3:00 PM EST
Where
Carroll County, Countywide
Reported by
TRAINED SPOTTER
Coordinates
39.563, -77.022 (the zone’s center; the record gives no point)

Flash Flood, Anne Arundel

When
July 15, 12:00 PM EST to 4:00 PM EST
Where
Anne Arundel County, Countywide
Reported by
NEWSPAPER
Coordinates
38.994, -76.568 (the zone’s center; the record gives no point)

Cars were stalled on flooded roads in Annapolis.

Thunderstorm Wind, Harford

When
July 15, 2:00 PM EST to 6:00 PM EST
Where
Harford County, Countywide
Property damage
$5,000
Reported by
NEWSPAPER
Coordinates
39.583, -76.300

Trees were downed onto several roads sometime during the afternoon.

Lightning, Anne Arundel

When
July 15, 10:26 PM EST
Where
Anne Arundel County, Millersville
Property damage
$30,000
Reported by
NEWSPAPER
Coordinates
38.994, -76.568 (the zone’s center; the record gives no point)

A two story home was damaged by a lightning induced fire.

Lightning, Anne Arundel

When
July 15, 11:00 PM EST
Where
Anne Arundel County, Crofton
Property damage
$10,000
Reported by
NEWSPAPER
Coordinates
38.994, -76.568 (the zone’s center; the record gives no point)

A townhouse was damaged by a fire which was started by lightning.

What these are

Flash Flood
Flooding that begins within six hours of the rain that causes it, or of a dam or levee failure or ice jam release, often with deadly speed.
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.
Lightning
A lightning strike that killed, injured or caused damage.

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, July 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: 5164276, 5164278, 5164277, 5164279, 5164280, 5164281.