Alert archive / New Hampshire / 2021
Weather alerts in New Hampshire, December 2021
27 weather alerts in December 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 December 2021. Tap one for its archive.
- Alerts
- 27
- Warnings
- 2
- Watches
- 1
- Advisories
- 11
- Busiest day
- December 12, 20215 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 |
|---|---|---|---|---|
| Dec 3, 9:42 AM EST | Wind Advisory | GYX | Carroll, Coos, Grafton | 5 hr |
| Dec 4, 10:20 PM EST | Special Weather Statement | GYX | Grafton | 40 min |
| Dec 5, 3:30 PM EST | Coastal Flood Statement | GYX | Rockingham | 23 hr |
| Dec 6, 3:34 AM EST | Winter Weather Advisory | GYX | Carroll | 9 hr |
| Dec 6, 9:40 AM EST | Coastal Flood Advisory | GYX | Rockingham | 4 hr |
| Dec 6, 8:36 PM EST | Special Weather Statement | GYX | Hillsborough | 39 min |
| Dec 6, 9:10 PM EST | Special Weather Statement | GYX | Rockingham | 50 min |
| Dec 7, 6:15 AM EST | Special Weather Statement | GYX | Carroll | 15 min |
| Dec 10, 4:32 PM EST | Winter Weather Advisory | GYX | Belknap, Carroll, Cheshire, Coos, Grafton, Hillsborough and 4 more | 26 hr |
| Dec 11, 9:39 PM EST | Special Weather Statement | GYX | Cheshire, Sullivan | 51 min |
| Dec 11, 9:49 PM EST | Mesoscale Discussion | SPC | Cheshire, Hillsborough, Merrimack, Rockingham, Strafford | 116 min |
| Dec 11, 9:56 PM EST | Severe Thunderstorm Warning | GYX | Cheshire, Hillsborough, Merrimack, Sullivan | 64 min |
| Dec 11, 10:50 PM EST | Special Weather Statement | GYX | Hillsborough, Merrimack, Rockingham, Strafford | 40 min |
| Dec 11, 11:36 PM EST | Special Weather Statement | GYX | Rockingham, Strafford | 54 min |
| Dec 15, 2:55 AM EST | Winter Weather Advisory | GYX | Carroll, Coos, Grafton | 33 hr |
| Dec 16, 3:14 PM EST | Dense Fog Advisory | GYX | Belknap, Carroll, Strafford | 12 hr |
| Dec 16, 3:14 PM EST | Wind Advisory | GYX | Carroll, Coos, Grafton | 21 hr |
| Dec 17, 2:47 AM EST | Winter Storm Watch | GYX | Belknap, Carroll, Cheshire, Coos, Grafton, Hillsborough and 4 more | 13 hr |
| Dec 17, 3:34 PM EST | Winter Storm Warning | GYX | Belknap, Carroll, Cheshire, Coos, Grafton, Hillsborough and 4 more | 42 hr |
| Dec 17, 3:34 PM EST | Winter Weather Advisory | GYX | Rockingham | 45 hr |
| Dec 18, 2:54 PM EST | Mesoscale Discussion | SPC | Cheshire, Hillsborough | 5 hr |
| Dec 21, 3:29 AM EST | Winter Weather Advisory | GYX | Belknap, Carroll, Cheshire, Grafton, Hillsborough, Merrimack and 3 more | 36 hr |
| Dec 22, 4:26 AM EST | Mesoscale Discussion | SPC | Belknap, Carroll, Hillsborough, Merrimack, Rockingham, Strafford | 4 hr |
| Dec 24, 3:26 AM EST | Winter Weather Advisory | GYX | Belknap, Cheshire, Grafton, Hillsborough, Merrimack, Rockingham and 2 more | 51 hr |
| Dec 25, 5:44 AM EST | Mesoscale Discussion | SPC | Belknap, Carroll, Cheshire, Grafton, Hillsborough, Merrimack and 3 more | 5 hr |
| Dec 25, 5:44 PM EST | Mesoscale Discussion | SPC | Cheshire, Hillsborough, Merrimack, Sullivan | 4 hr |
| Dec 27, 3:11 PM EST | Winter Weather Advisory | GYX | Belknap, Carroll, Cheshire, Coos, Grafton, Hillsborough and 4 more | 19 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 | 1 |
| Mesoscale Discussion | 5 |
| Special Weather Statement | 7 |
| Winter | |
| Winter Storm Warning | 1 |
| Winter Storm Watch | 1 |
| Winter Weather Advisory | 7 |
| Wind and dust | |
| Wind Advisory | 2 |
| Fog and smoke | |
| Dense Fog Advisory | 1 |
| Coast and beach | |
| Coastal Flood Advisory | 1 |
| 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.