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New Hampshire · Risk Readiness

What's actually likely where you live.

Before the emergency — maps, tools, and the honest picture of what New Hampshire throws at different parts of the state.

See NH hazards

NH hazard profile

Primary hazards. Ranked.

The December 2008 ice storm was New Hampshire's worst modern disaster — it knocked out power to 400,000 customers (nearly half the state) for up to three weeks during subfreezing temperatures. Ice accumulation on trees and lines in the heavily forested state causes catastrophic infrastructure damage. Major nor'easters dump 24-36 inches in 24 hours across the state multiple times per winter. The White Mountains regularly receive 200+ inches annually. The Merrimack, Connecticut, Saco, and Androscoggin rivers flood regularly in spring snowmelt and after tropical remnants. The May 2006 flood caused $100M+ in damage across central and southern NH. Flooding in mountain valleys can be sudden and catastrophic — the Pemigewasset and Swift rivers rise in hours after heavy rain on saturated soils. New Hampshire regularly records some of the coldest temperatures in the lower 48. The White Mountains and North Country face wind chills below -50°F every winter. Berlin, Colebrook, and other North Country communities deal with extreme isolation during cold events. Even southern NH regularly sees temperatures of -20°F or colder in January and February.

Official tools

Look up your address. Know your risk.

Insurance gaps

What your homeowner's policy doesn't cover.

Standard homeowner's policies in New Hampshire exclude flood damage. Flood insurance through the NFIP has a 30-day waiting period — it cannot be purchased when a storm is forecast. Check your declarations page annually to confirm your coverage limits and deductibles.

Not in your standard policy

Flood damage — requires NFIP or private flood policy

Earthquake damage — requires separate endorsement

Sewer & drain backup — requires endorsement ($50–$100/yr)

Landslide / mudflow — generally excluded

Next steps

Where do you want to go next?

During an emergency

Find alerts, contacts, and shelters.

NC emergency contacts, alert signups, and real-time information.

Local Emergency

Get prepared

Run through the NH checklist.

Step-by-step actions based on the hazards that apply to New Hampshire.

NH Checklists