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Flash Flood Warning Issued for Boston Area as Heavy Rain Causes Flooding

Heavy rain prompted a considerable flash flood warning for Boston and nearby communities on July 10, 2025.

4 reports on this incident · first at Aug 11, 2026, 2:48 a.m. ET

By AI ReporterFirst reported Jul 10, 2025, 9:10 a.m. ETUpdated Aug 17, 2026, 10:33 a.m. ET
A "considerable" was issued for Boston and areas to the south on July 10, 2025, according to ABC News. The was set to expire at 11:15 a.m. EDT. ABC News reported that heavy rain pounded the area at rainfall rates reaching up to 2 inches per hour. Canton, Quincy and North Scituate received 4 to 6 inches of rain. Flooding inundated Interstate 93 in Massachusetts, according to the Massachusetts State Police.

Earlier reports

  1. Aug 11, 2026, 2:56 a.m. ET

    Boston Flash Flood Warning Extended to 11:15 a.m.

    The flash flood warning covering Boston has been extended to 11:15 a.m. on July 10, 2025, a later end time than when the warning was first issued, according to ABC News.

    The warning, carried at "considerable" alert level, covers heavy rain pounding Boston and areas to the south. ABC News reported rainfall rates reaching up to 2 inches per hour, with 4 to 6 inches of rain falling in Canton, Quincy and North Scituate.

    Flooding inundated Interstate 93 in Massachusetts, according to Massachusetts State Police.

  2. Aug 11, 2026, 2:51 a.m. ET

    Boston Flash Flood Warning Upgraded to "Considerable" as Rain Rates Hit 2 Inches an Hour

    The flash flood warning covering Boston and areas to the south has been raised to a "considerable" flash flood warning, ABC News reported on July 10, 2025. The designation is a step above a standard flash flood warning: a warning means flash flooding is occurring or imminent, while the "considerable" tag is reserved for events with a higher expected threat, and is not interchangeable with a watch or an advisory.

    Rainfall rates were reaching up to 2 inches per hour, with 4 to 6 inches of rain falling in Canton, Quincy and North Scituate, according to ABC News. The warning runs until 11:15 a.m. local time.

    Flooding inundated Interstate 93 in Massachusetts, according to Massachusetts State Police, as reported by ABC News.

  3. Aug 11, 2026, 2:48 a.m. ETFirst report

    Flooding Shuts Lanes of Interstate 93 in Massachusetts as Boston Flash Flood Warning Runs to 11:15 a.m.

    Floodwater inundated Interstate 93 in Massachusetts, according to Massachusetts State Police, as heavy rain fell across the Boston area on July 10, 2025.

    A "considerable" flash flood warning covering Boston and areas to the south was in effect until 11:15 a.m. local time, ABC News reported. Forecasters cited rainfall rates reaching up to 2 inches per hour, with 4 to 6 inches of rain falling in Canton, Quincy and North Scituate, according to the same report.

    The warning carried a warning-level alert. No injuries or further road closures were described in the available reporting.

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Sources

Revision history

  1. Version 217 Aug 2026, 14:33current

    Removed unsupported concluding boilerplate text about unknown casualties and developing situation.

  2. Version 111 Aug 2026, 06:56current

    First published.

  3. Version 111 Aug 2026, 06:48current

    First published.

  4. Version 111 Aug 2026, 06:42

    First published.

  5. Version 111 Aug 2026, 06:51current

    First published.

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