Alert archive / New Hampshire / 2026
Weather alerts in New Hampshire, May 2026
24 weather alerts in May 2026, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered any part of the state, so the counties below add up to more than the state.
Weather alerts by county
Each county as a circle sized by its count in May 2026. Tap one for its archive.
- Alerts
- 24
- Warnings
- 7
- Watches
- 0
- Advisories
- 11
- Busiest day
- May 15, 20263 alerts
Over time
By day
Days in UTC, the clock the archive keeps.
The alerts
Every alert, in the order issued. Times are local, Eastern Time. Each opens its own page with the text, the map, the radar and the sounding.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 5, 1:33 PM EDT | Mesoscale Discussion | SPC | Carroll, Coos, Grafton, Sullivan | 87 min |
| May 5, 4:49 PM EDT | Special Weather Statement | GYX | Coos | 41 min |
| May 8, 2:25 PM EDT | Frost Advisory | GYX | Rockingham, Strafford | 16 hr |
| May 10, 2:07 PM EDT | Frost Advisory | GYX | Carroll, Grafton | 18 hr |
| May 11, 2:23 PM EDT | Frost Advisory | GYX | Belknap, Carroll, Cheshire, Hillsborough, Merrimack, Strafford | 18 hr |
| May 11, 2:23 PM EDT | Freeze Warning | GYX | Grafton, Sullivan | 18 hr |
| May 12, 2:05 PM EDT | Frost Advisory | GYX | Belknap, Carroll, Grafton, Strafford | 18 hr |
| May 12, 2:05 PM EDT | Freeze Warning | GYX | Carroll | 18 hr |
| May 14, 7:34 PM EDT | River Flood Warning | GYX | Grafton | 7 hr |
| May 15, 2:58 AM EDT | River Flood Warning | GYX | Carroll | 20 hr |
| May 15, 7:59 AM EDT | River Flood Warning | GYX | Belknap, Grafton | 14 hr |
| May 15, 2:25 PM EDT | Beach Hazards Statement | GYX | Rockingham | 30 hr |
| May 17, 2:25 AM EDT | Beach Hazards Statement | GYX | Rockingham | 18 hr |
| May 18, 2:12 PM EDT | Heat Advisory | GYX | Hillsborough, Rockingham | 30 hr |
| May 19, 4:52 PM EDT | Special Weather Statement | GYX | Rockingham | 23 min |
| May 21, 2:27 AM EDT | Frost Advisory | GYX | Carroll, Cheshire, Grafton, Sullivan | 28 hr |
| May 21, 2:27 AM EDT | Freeze Warning | GYX | Coos, Grafton | 28 hr |
| May 22, 1:02 PM EDT | Frost Advisory | GYX | Coos | 17 hr |
| May 23, 2:38 AM EDT | Beach Hazards Statement | GYX | Rockingham | 17 hr |
| May 29, 2:35 AM EDT | Wind Advisory | GYX | Hillsborough, Rockingham, Strafford | 32 hr |
| May 29, 11:56 AM EDT | River Flood Warning | GYX | Carroll | 25 hr |
| May 29, 2:36 PM EDT | High Surf Advisory | GYX | Rockingham | 29 hr |
| May 30, 3:10 AM EDT | Areal Flood Advisory | GYX | Carroll | 5 hr |
| May 30, 2:10 PM EDT | Frost Advisory | GYX | Carroll, Coos, Grafton | 17 hr |
By product
Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.
| Product | Alerts |
|---|---|
| Severe storms | |
| Mesoscale Discussion | 1 |
| Special Weather Statement | 2 |
| Flooding | |
| River Flood Warning | 4 |
| Areal Flood Advisory | 1 |
| Heat | |
| Heat Advisory | 1 |
| Cold | |
| Freeze Warning | 3 |
| Frost Advisory | 7 |
| Wind and dust | |
| Wind Advisory | 1 |
| Coast and beach | |
| High Surf Advisory | 1 |
| Beach Hazards Statement | 3 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
Nearby
Sources
National Weather Service watches, warnings, advisories and statements from the Iowa Environmental Mesonet's VTEC archive, which reconstructs tornado, severe thunderstorm, flash flood and marine warnings back to 1986 from the NWS text archive. Storm Prediction Center watches and mesoscale discussions from SPC's archive through the Mesonet. County centers from the US Census Bureau. Warning verification from the Mesonet's Cow. Rebuilt daily.