Heavy Rains, Damaging Winds Forecast for Massachusetts

Powerful storm system to bring flooding risk and high winds starting Monday

Mar. 15, 2026 at 6:34pm

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A potent storm system is set to bring heavy rainfall, embedded thunderstorms, and strong winds to the Boston area and much of southern New England starting on Monday. Forecasters warn of the potential for localized flooding, damaging wind gusts, and power outages as the storm taps into an unusually moisture-rich air mass for mid-March.

Why it matters

This storm system could have significant impacts on the region, with the potential for flooding, downed trees and power lines, and travel disruptions. The heavy rainfall and strong winds come as rivers and streams are already running above normal levels due to recent snowmelt and rain, increasing the flood risk.

The details

The storm is expected to bring periods of heavy rain starting on Monday, with rainfall rates potentially reaching 2-3 inches in some areas, especially where thunderstorms develop. A powerful low-level jet stream will also bring the threat of damaging wind gusts of 60-70 mph, particularly along the southeast New England coastline. There is also a chance of a narrow line of thunderstorms developing along the cold front Monday night, which could result in localized damaging wind gusts.

  • Rain will begin increasing on Monday and may fall steadily at times through Monday night.
  • The strongest winds and highest risk of flooding are expected Monday evening into Monday night.
  • Behind the storm, much colder and drier air will move into the region on Tuesday.

The players

Boston Area

The Boston metropolitan area and much of southern New England will be impacted by this storm system.

Storm Prediction Center

The federal agency that issues severe weather forecasts and warnings, including the Moderate Risk for severe thunderstorms in the Southeast and Mid-Atlantic on Monday.

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What’s next

A High Wind Watch is already in place for eastern Massachusetts and Rhode Island Monday evening through early Tuesday morning as the storm system approaches the region.

The takeaway

This powerful storm system has the potential to bring significant disruptions to the Boston area and southern New England, with the risk of flooding, power outages, and travel issues. Residents should closely monitor the forecast and be prepared to take action if necessary to protect themselves and their property.