🚨 Severe Thunderstorm Warning Issued for Parts of Southern & Central New Hampshire — High Winds, Hail Possible



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Concord, N.H. — August 13, 2025 —

The National Weather Service (NWS) has issued a Severe Thunderstorm Warning for northwestern Rockingham County, southwestern Strafford County, and eastern Merrimack County until 6:45 p.m. EDT.


⚡ Storm Hazards & Risks

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Wind Gusts: Up to 60 mph — strong enough to damage roofs, siding, and uproot trees.


Hail: Quarter-size hail could dent vehicles and harm crops.


Heavy Rain: Localized flooding possible in low-lying areas.


Impacted towns include: Nottingham, Strafford, Northwood, Barrington, Epsom, Pittsfield, Chichester, Lee, Deerfield, Farmington, and Rochester.


Safety Alert: Residents are urged to seek shelter in an interior room on the lowest floor of a sturdy building and avoid windows until the storm passes.


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🌡 Heat Wave Continues

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This storm threat comes during New Hampshire’s fourth heat wave of 2025, with temperatures soaring into the 90s again Wednesday.


Heat Advisory in effect until 8 p.m. for parts of Strafford, Rockingham, and Hillsborough counties.


Concord has now seen four consecutive days above 90°F — marking the 23rd day this summer at or above that mark.

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📊 Heat Records:

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Record for most 90°F+ days in Concord: 30 days (1955).


Average summers see ~13 days above 90°F — this year is already 10 days above average.


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⛈ Storm Timing — Wednesday Evening

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Early to Mid Evening: Scattered downpours & thunderstorms expected.


Late Evening & Overnight: Storms taper off, skies clearing.


Risk Level: Marginal (per Storm Prediction Center), but isolated severe cells possible.


Fire Danger: Still high due to recent dry conditions, despite tonight’s rain chances.


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📅 Looking Ahead

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Thursday: Partly cloudy, hot, humid; scattered afternoon thunderstorms possible.


Friday: Drier, warm, more comfortable.


Saturday: Sunshine, highs in the 80s — great outdoor weather.


Sunday: Near 90°F before a cold front moves in with a chance of evening storms.

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