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Maryland Flood Stories

1,019 first-hand accounts of flood events in Maryland, ranked by impact. Each is a NOAA-written narrative of the moment.

Flash Flood$100K damage

Allegany, MD · May 4, 1998

Slow-moving thunderstorms with very heavy rainfall aligned across the western portion of Allegany Co, dumping between 1 1/2 and 2 inches of rain in less than 3 hours onto saturated ground. Several streams and creeks overflowed their banks.

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Flash Flood$100K damage

Baltimore City (c), MD · Aug 26, 1999

A line of intense thunderstorms moved across much of Maryland during the afternoon, producing damaging winds and frequent lightning. Storm winds weakened and the speed of the line slowed as it moved south and east of Frederick and Carroll Counties.

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Flash Flood$100K damage

Anne Arundel, MD · Aug 26, 1999

A line of intense thunderstorms moved across much of Maryland during the afternoon, producing damaging winds and frequent lightning. Storm winds weakened and the speed of the line slowed as it moved south and east of Frederick and Carroll Counties.

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Flash Flood$100K damage

Frederick, MD · Aug 1, 2000

Scattered thunderstorms developed during the hot and humid afternoon of the 1st. These thunderstorms produced very heavy rainfall, gusty winds, and frequent lightning. In Frederick County, the chimney of a two-story home in Jefferson was struck by lightning.

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Flash Flood$100K damage

Montgomery, MD · Jun 26, 2006

A weak cold front settled over the forecast area from June 23 until June 27. Waves of low pressure rode northeast along the front. Flow in the atmosphere was parallel to the boundary, producing several rounds of training echoes.

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Flash Flood$100K damage

Montgomery, MD · Jun 27, 2006

A weak cold front settled over the forecast area from June 23 until June 27. Waves of low pressure rode northeast along the front. Flow in the atmosphere was parallel to the boundary, producing several rounds of training echoes.

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Flash Flood$100K damage

Baltimore, MD · Jun 25, 2006

A weak cold front settled over the forecast area from June 23 until June 27. Waves of low pressure rode northeast along the front. Flow in the atmosphere was parallel to the boundary, producing several rounds of training echoes.

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Flash Flood

Allegany, MD · May 13, 2025

A slow moving closed upper level low originating from the Gulf of America brought anomalous moisture into the area. A long duration period of rain ensued, with rain rates exceeding two inches an hour during the afternoon of May 13th.

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Flash Flood

Allegany, MD · May 13, 2025

A slow moving closed upper level low originating from the Gulf of America brought anomalous moisture into the area. A long duration period of rain ensued, with rain rates exceeding two inches an hour during the afternoon of May 13th.

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Flash Flood

Garrett, MD · May 13, 2025

A slow moving closed upper level low originating from the Gulf of America brought anomalous moisture into the area. A long duration period of rain ensued, with rain rates exceeding two inches an hour during the afternoon of May 13th.

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Flash Flood

Garrett, MD · May 13, 2025

A slow moving closed upper level low originating from the Gulf of America brought anomalous moisture into the area. A long duration period of rain ensued, with rain rates exceeding two inches an hour during the afternoon of May 13th.

Read the full account →
Flash Flood

Garrett, MD · May 13, 2025

A slow moving closed upper level low originating from the Gulf of America brought anomalous moisture into the area. A long duration period of rain ensued, with rain rates exceeding two inches an hour during the afternoon of May 13th.

Read the full account →
Flash Flood

Allegany, MD · May 13, 2025

A slow moving closed upper level low originating from the Gulf of America brought anomalous moisture into the area. A long duration period of rain ensued, with rain rates exceeding two inches an hour during the afternoon of May 13th.

Read the full account →
Flash Flood

Garrett, MD · May 13, 2025

A slow moving closed upper level low originating from the Gulf of America brought anomalous moisture into the area. A long duration period of rain ensued, with rain rates exceeding two inches an hour during the afternoon of May 13th.

Read the full account →
Flash Flood

Allegany, MD · May 13, 2025

A slow moving closed upper level low originating from the Gulf of America brought anomalous moisture into the area. A long duration period of rain ensued, with rain rates exceeding two inches an hour during the afternoon of May 13th.

Read the full account →
Flash Flood

Allegany, MD · May 13, 2025

A slow moving closed upper level low originating from the Gulf of America brought anomalous moisture into the area. A long duration period of rain ensued, with rain rates exceeding two inches an hour during the afternoon of May 13th.

Read the full account →
Flash Flood

Allegany, MD · May 13, 2025

A slow moving closed upper level low originating from the Gulf of America brought anomalous moisture into the area. A long duration period of rain ensued, with rain rates exceeding two inches an hour during the afternoon of May 13th.

Read the full account →
Flash Flood

Allegany, MD · May 13, 2025

A slow moving closed upper level low originating from the Gulf of America brought anomalous moisture into the area. A long duration period of rain ensued, with rain rates exceeding two inches an hour during the afternoon of May 13th.

Read the full account →
Flash Flood

Allegany, MD · May 13, 2025

A slow moving closed upper level low originating from the Gulf of America brought anomalous moisture into the area. A long duration period of rain ensued, with rain rates exceeding two inches an hour during the afternoon of May 13th.

Read the full account →
Flash Flood

Allegany, MD · May 13, 2025

A slow moving closed upper level low originating from the Gulf of America brought anomalous moisture into the area. A long duration period of rain ensued, with rain rates exceeding two inches an hour during the afternoon of May 13th.

Read the full account →
Flash Flood

Allegany, MD · May 13, 2025

A slow moving closed upper level low originating from the Gulf of America brought anomalous moisture into the area. A long duration period of rain ensued, with rain rates exceeding two inches an hour during the afternoon of May 13th.

Read the full account →
Flood

Cecil, MD · Jan 20, 1996

Flooding along the Susquehanna River in Pennsylvania and an approaching ice dam forced officials at the Conowingo Dam to open about 40 of 52 flood gates. This surge of water flooded Port Deposit starting around 4 p.m. on the 20th.

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Flood$100K damage

Frederick, MD · Sep 20, 2003

On September 18, 2003, Hurricane Isabel made landfall on the North Carolina Coast. Its wind field extended for hundreds of miles from the storm's center. As bad as it was across Maryland and Virginia, it could have been much worse. The air at the surface was relatively cool.

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Flood$100K damage

Anne Arundel, MD · May 12, 2008

A potent storm system crossed the region May 12th. Warm and moist air filtered in ahead of the system, bringing widespread showers and thunderstorms with heavy rain.

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