Alert archive / New Hampshire / 2021
Weather alerts in New Hampshire, May 2021
27 weather alerts in May 2021, 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 2021. Tap one for its archive.
- Alerts
- 27
- Warnings
- 9
- Watches
- 1
- Advisories
- 5
- Busiest day
- May 26, 202111 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 |
|---|---|---|---|---|
| Apr 30, 11:43 PM EDT | River Flood Warning | GYX | Grafton | 4 hr |
| May 1, 3:29 PM EDT | Beach Hazards Statement | GYX | Rockingham | 29 hr |
| May 12, 3:30 AM EDT | Frost Advisory | GYX | Belknap, Carroll, Grafton, Sullivan | 28 hr |
| May 14, 3:31 PM EDT | Beach Hazards Statement | GYX | Rockingham | 28 hr |
| May 15, 8:09 PM EDT | Beach Hazards Statement | GYX | Rockingham | 24 hr |
| May 16, 1:20 PM EDT | Special Weather Statement | GYX | Grafton | 25 min |
| May 16, 3:50 PM EDT | Special Weather Statement | GYX | Coos | 25 min |
| May 17, 3:50 PM EDT | Special Weather Statement | GYX | Hillsborough | 25 min |
| May 21, 3:31 PM EDT | Beach Hazards Statement | GYX | Rockingham | 28 hr |
| May 22, 3:39 PM EDT | Coastal Flood Advisory | GYX | Rockingham | 5 hr |
| May 22, 9:11 PM EDT | Beach Hazards Statement | GYX | Rockingham | 23 hr |
| May 23, 2:28 PM EDT | Frost Advisory | GYX | Coos | 17 hr |
| May 26, 3:21 PM EDT | Mesoscale Discussion | SPC | Belknap, Carroll, Cheshire, Coos, Grafton, Hillsborough and 4 more | 54 min |
| May 26, 3:56 PM EDT | Severe Thunderstorm Watch | SPC | Belknap, Carroll, Cheshire, Coos, Grafton, Hillsborough and 4 more | 5 hr |
| May 26, 4:46 PM EDT | Special Weather Statement | GYX | Grafton | 29 min |
| May 26, 4:51 PM EDT | Severe Thunderstorm Warning | GYX | Coos, Grafton | 54 min |
| May 26, 5:07 PM EDT | Severe Thunderstorm Warning | GYX | Grafton, Merrimack, Sullivan | 53 min |
| May 26, 5:14 PM EDT | Severe Thunderstorm Warning | GYX | Cheshire, Hillsborough, Merrimack, Sullivan | 46 min |
| May 26, 5:52 PM EDT | Severe Thunderstorm Warning | GYX | Belknap, Carroll, Grafton, Merrimack, Strafford | 53 min |
| May 26, 5:58 PM EDT | Severe Thunderstorm Warning | GYX | Belknap, Cheshire, Hillsborough, Merrimack, Rockingham, Strafford and 1 more | 62 min |
| May 26, 6:07 PM EDT | Mesoscale Discussion | SPC | Belknap, Carroll, Hillsborough, Merrimack, Rockingham, Strafford | 113 min |
| May 26, 6:30 PM EDT | Severe Thunderstorm Warning | GYX | Carroll, Strafford | 60 min |
| May 26, 6:59 PM EDT | Severe Thunderstorm Warning | GYX | Belknap, Carroll, Hillsborough, Merrimack, Rockingham, Strafford | 61 min |
| May 27, 3:07 AM EDT | Frost Advisory | GYX | Carroll, Grafton | 28 hr |
| May 27, 3:07 AM EDT | Freeze Warning | GYX | Coos | 28 hr |
| May 29, 6:43 PM EDT | Coastal Flood Statement | GYX | Rockingham | 9 hr |
| May 30, 3:20 AM EDT | High Surf Advisory | GYX | Rockingham | 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 | |
| Severe Thunderstorm Warning | 7 |
| Severe Thunderstorm Watch | 1 |
| Mesoscale Discussion | 2 |
| Special Weather Statement | 4 |
| Flooding | |
| River Flood Warning | 1 |
| Cold | |
| Freeze Warning | 1 |
| Frost Advisory | 3 |
| Coast and beach | |
| Coastal Flood Advisory | 1 |
| High Surf Advisory | 1 |
| Beach Hazards Statement | 5 |
| Coastal Flood Statement | 1 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20202022
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. Rebuilt daily.