Massachusetts: The Storm-Ready Checklist

Shelter & mitigation money

No dedicated state-run storm-shelter rebate or grant program is listed for Massachusetts in the mitigation data reviewed for this page. Check with the state emergency management agency below for anything new.

NAIC lists Massachusetts among the 19 states plus DC with a separate hurricane or named-storm deductible in homeowner policies as of June 2025 (content.naic.org/insurance-topics/hurricane-deductibles).

Who to call, before and after

The hazards Massachusetts actually faces

• Hail and derecho

  Peak season: Dec–Apr

  Hail and derecho winds arrive inside the same thunderstorm complex, often with less lead time than a tornado warning because the threat is the whole storm line, not a single funnel. Large hail totals more property-damage claims nationally than any other severe-storm hazard, and derecho wind gusts can match hurricane-force winds hundreds of miles from open water. Vehicles under cover and loose yard items secured before the line arrives are the cheap fix.

• Lightning

  Peak season: Sep

  Lightning is the most common severe-weather hazard by frequency, and most strikes happen well before or after the heaviest rain — the 30-30 rule (shelter if under 30 seconds between flash and bang, wait 30 minutes after the last one) still holds. It is also the hazard households prepare for least, because it rarely triggers a county-level warning of its own.

• Tornado

  Peak season: Jun

  Tornadoes form fast, and even a well-run warning system only buys minutes. The National Weather Service's after-action reports on the deadliest US tornadoes trace back to the same pattern: people heard a warning, stepped outside to look for the funnel, and lost the time a sheltered household would have had. A named safe room — the lowest floor, smallest interior room, most walls between you and outside — and a rehearsed trigger point close most of that gap.

Rules worth knowing

• Winter utility shutoff protection: Winter moratorium, standard dates Nov 15 - Mar 15 (temporarily expanded to Oct 27 - Apr 1 for the 2025-26 season): no shutoff of heat-related service for a household that files a financial-hardship form (Mass. Dept. of Public Utilities).

Frequently asked