Maryland Storms Bring Tornado Warnings and Flood Watch

Why this matters: These severe weather conditions can disrupt daily life, cause property damage, and pose safety risks. Staying informed and prepared is crucial.

On Monday, June 30, 2025, Maryland experienced a series of severe weather events, including tornado warnings and a flood watch. The National Weather Service issued a tornado warning for Aberdeen, Havre de Grace, and Perryman, which expired at 8:45 p.m. Eastern Baltimore County also faced a tornado warning, which eventually expired, but residents were advised to remain alert for potential severe storms.

Carroll County and Baltimore County saw storms developing, with the storm in Baltimore County slowly drifting north. These storms were capable of producing very heavy rain and strong wind gusts. Some areas along Harford Road experienced 3-4 inches of rainfall flowing across the road.

The tornado-warned storm did cause some damage, particularly in Kingsville, where damaging winds knocked down trees and wires. Although there was no confirmed tornado, the storm's intensity was significant. A flash flood warning was also in effect until 8:15 PM.

In addition to the tornado warnings, a Flood Watch was issued for Arlington, Alexandria, Falls Church, and much of the D.C. area, lasting until 11 p.m. The thunderstorms expected to develop could produce intense rainfall rates of 1 to 2 inches per hour, leading to a flash flooding risk for small streams, creeks, urban areas, and locations with poor drainage.

A Weather Alert Day has been declared for Tuesday as a strong cold front approaches from the west, bringing the likelihood of stronger and more widespread storms. The Storm Prediction Center has placed the region under a SLIGHT risk (2 out of 5).

Driving conditions were hazardous, especially along Maryland Route 147 and U.S. Routes 1 and 40, due to heavy rain. The National Weather Service advised residents to download weather apps, turn on push alerts, and monitor NOAA Weather radio and local news channels for updates.

How to Prepare:

Who This Affects Most:

Aberdeen, Havre de Grace, Perryman, and eastern Baltimore County.

Expected thunderstorms with intense rainfall rates of 1 to 2 inches per hour.

11 p.m. Monday.

Monitor weather conditions, avoid flood-prone areas, and be prepared to take action if flooding develops.

Key Actions:

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