Severe Thunderstorm Warning Issued for Grafton, Merrimack, Sullivan Counties NH
This alert is no longer in effect.
NOAA issued it on July 22, 2026, 4 weeks ago. Warnings of this kind stay in effect for hours to a few days, so this page is a historical record of what was issued, not a current warning. For conditions where you are right now, check weather.gov (US), weather.gc.ca (Canada), the Met Office (UK), or the Bureau of Meteorology (Australia).
Areazine synthesizes this NWS weather alert directly from NOAA's official public data feed. See our methodology for full source attribution and refresh cadence.
NWS Gray ME has issued a Severe Thunderstorm Warning for Sullivan, southern Grafton, and northwestern Merrimack counties in New Hampshire until 3:45 PM EDT.
Read this weather record in 30 seconds
- Record type
- Severe Thunderstorm Warning
- Affected area
- Central and Northern New Hampshire
- Issued
- July 22, 2026
- Issuing authority
- NWS Gray ME
Storm notices can cover different combinations of wind, hail, lightning, and rainfall. Use the original notice for the hazards and boundaries attached to this specific record.
Record status: historical. It was issued 4 weeks ago; use the issuing agency's live warning service for current conditions in Central and Northern New Hampshire.
Alert Details
Severe Thunderstorm Warning issued by NWS Gray ME. Effective from 2:39 PM EDT June 18, 2026 until 3:45 PM EDT June 18, 2026. Urgency: Immediate. Certainty: Observed. Severity: Severe.
Affected Areas
Sullivan County in central New Hampshire, southern Grafton County in northern New Hampshire, and northwestern Merrimack County in central New Hampshire. Locations impacted include Claremont, Lebanon, Franklin, Henniker, New London, Plymouth, Grafton, Hanover, Charlestown, Enfield, Canaan, Holderness, Ashland, Bradford, Danbury, Groton, Newport, Warner, Marlow, and Alstead. Includes Interstate 89 between mile markers 16 and 60, Interstate 93 between mile markers 75 and 81, Mount Kearsage, and Mount Sunapee.
What You Should Do
Move to an interior room on the lowest floor of a building. Do not drive your vehicle through flooded roadways.
Expected Conditions
60 mph wind gusts. Torrential rainfall occurring with risk of flash flooding. Expect damage to roofs, siding, and trees.
Timeline
Alert in effect from 2:39 PM EDT until 3:45 PM EDT on June 18, 2026.
Original source: NOAA Official Notice ↗
Related Weather Alerts
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Two Areazine-derived peer sets for this NWS weather alert: nearest notices by body length and by same severity near the same agency date. Peers come from other categories so they are not the same-feed Related list above.
Similar body length
Nearest notices by article body length (1,093 characters here).
Similar severity timing
Same severity (high) notices issued closest in time to July 22, 2026.
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