Severe Weather History


Hazard archive · 1950 — present

Flash Flood in Baltimore city, Maryland

56

Recorded events

4

Direct deaths

1

Direct injuries

$4.9M

Property damage

Flash Flood in Baltimore city, Maryland: 56 recorded events between 1996 and 2025. The strongest on record measured 0. That places the county #519 nationally and #11 statewide for this hazard.

Decade by decade

Flash Flood in Baltimore city, Maryland: events per decade

Flash Flood in Baltimore city, Maryland: recorded events per decade
Flash Flood in Baltimore city, Maryland: recorded events per decade

Reporting practice changed over time — early decades are undercounted, not calmer.

The busiest decade for flash flood in Baltimore city is the 2010s, when 29 of the county's 56 recorded events were logged. Comparing decades is useful for spotting active periods, but the earliest years are thin because systematic reporting for this hazard began later.

Within the Baltimore city archive, flash flood makes up 20.7% of all recorded severe weather across 9 hazard types. Nationally the county sits at #519 for this hazard and #11 within Maryland, putting it in the 83.0 percentile of all U.S. counties.

Seasonality

Events by month

1Jan
0Feb
1Mar
2Apr
2May
15Jun
11Jul
12Aug
9Sep
0Oct
3Nov
0Dec

Jun is the peak month for flash flood in Baltimore city with 15 recorded events, while Feb is the quietest. Seasonality here is a property of the archive as much as the climate: reports cluster where population and spotter networks are densest.

Significant events

Deadliest on record

DateLocationScaleDeathsInjuriesDamage
Nov 19, 2003BALTIMORE040$0
Jun 14, 2003BALTIMORE001$500K
Source: NOAA/NCEI Storm Events · dates UTC

Most recent

Latest recorded events

DateLocationMagnitudeDamage
Jul 14, 2025HILLEN0$0
Sep 13, 2023LEAHIGH0$0
Sep 13, 2023LEAHIGH0$0
Jun 27, 2023BAY VIEW0$0
Aug 5, 2022CANTON0$0
Nov 1, 2019LEAHIGH0$0
Jul 27, 2018MT ROYAL0$0
Jul 27, 2018CATONSVILLE MANOR0$0
Jul 22, 2018WALBROOK0$0
May 27, 2018CATONSVILLE0$3.0M
Source: NOAA/NCEI Storm Events · dates UTC · recent entries may be preliminary

Other hazards here

More from Baltimore city

County overview →

From the record

What the reports say

Written by National Weather Service staff at the time of the event · public domain

Quick answers

Frequently asked

How many flash flood events are on record in Baltimore city, Maryland?

56 flash flood events are recorded in Baltimore city between 1996 and 2025, causing 4 direct deaths.

What is the strongest flash flood recorded in Baltimore city?

The strongest flash flood on record in Baltimore city measured 0.

Where does the flash flood data for Baltimore city come from?

All events come from the NOAA/NCEI Storm Events Database, the federal public-domain archive of severe weather reports. Dates are UTC, damage is as reported and not inflation-adjusted, and the most recent entries may still be revised.

Cite this page

“Flash Flood in Baltimore city, Maryland.” Severe Weather History. severeweatherhistory.com/county/maryland/baltimore-city/flash-flood/ · Data: NOAA/NCEI, FEMA, U.S. Census — public domain.


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