Alert archive / New Hampshire / 2021
Weather alerts in New Hampshire, July 2021
121 weather alerts in July 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 July 2021. Tap one for its archive.
- Alerts
- 121
- Warnings
- 41
- Watches
- 4
- Advisories
- 15
- Busiest day
- July 23, 202124 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 |
|---|---|---|---|---|
| Jul 2, 3:24 PM EDT | High Surf Advisory | GYX | Rockingham | 6 hr |
| Jul 4, 12:11 AM EDT | Areal Flood Advisory | GYX | Rockingham, Strafford | 3 hr |
| Jul 4, 3:48 PM EDT | Beach Hazards Statement | GYX | Rockingham | 28 hr |
| Jul 6, 1:13 PM EDT | Severe Thunderstorm Watch | SPC | Cheshire, Hillsborough | 7 hr |
| Jul 6, 4:32 PM EDT | Special Weather Statement | GYX | Hillsborough | 28 min |
| Jul 6, 4:58 PM EDT | Special Weather Statement | GYX | Hillsborough | 32 min |
| Jul 6, 5:07 PM EDT | Special Weather Statement | GYX | Rockingham | 23 min |
| Jul 6, 7:34 PM EDT | Special Weather Statement | GYX | Carroll | 26 min |
| Jul 6, 8:00 PM EDT | Special Weather Statement | GYX | Carroll | 30 min |
| Jul 7, 1:50 PM EDT | Mesoscale Discussion | SPC | Cheshire | 115 min |
| Jul 7, 4:21 PM EDT | Special Weather Statement | GYX | Rockingham | 24 min |
| Jul 7, 4:36 PM EDT | Severe Thunderstorm Warning | GYX | Hillsborough, Rockingham | 11 min |
| Jul 7, 6:08 PM EDT | Special Weather Statement | GYX | Hillsborough | 37 min |
| Jul 7, 7:53 PM EDT | Special Weather Statement | GYX | Cheshire, Hillsborough | 37 min |
| Jul 8, 4:09 AM EDT | Flash Flood Watch | GYX | Belknap, Carroll, Cheshire, Grafton, Hillsborough, Merrimack and 3 more | 39 hr |
| Jul 8, 2:35 PM EDT | High Surf Advisory | GYX | Rockingham | 44 hr |
| Jul 9, 1:01 PM EDT | Flash Flood Warning | GYX | Hillsborough, Merrimack, Rockingham, Strafford | 4 hr |
| Jul 9, 1:10 PM EDT | Flash Flood Warning | GYX | Strafford | 4 hr |
| Jul 9, 3:15 PM EDT | Areal Flood Advisory | GYX | Carroll, Coos, Strafford | 3 hr |
| Jul 11, 3:15 PM EDT | Flash Flood Watch | GYX | Belknap, Cheshire, Hillsborough, Merrimack, Rockingham, Strafford and 1 more | 22 hr |
| Jul 12, 5:43 AM EDT | Areal Flood Advisory | GYX | Cheshire, Hillsborough, Merrimack, Sullivan | 62 min |
| Jul 14, 7:12 AM EDT | Dense Fog Advisory | GYX | Rockingham | 53 min |
| Jul 14, 8:05 AM EDT | Dense Fog Advisory | GYX | Rockingham, Strafford | 3 hr |
| Jul 14, 2:59 PM EDT | Special Weather Statement | GYX | Grafton | 31 min |
| Jul 14, 3:11 PM EDT | Mesoscale Discussion | SPC | Belknap, Carroll, Cheshire, Coos, Grafton, Hillsborough and 4 more | 3 hr |
| Jul 14, 3:29 PM EDT | Special Weather Statement | GYX | Grafton | 31 min |
| Jul 14, 3:32 PM EDT | Severe Thunderstorm Warning | GYX | Grafton, Merrimack, Sullivan | 28 min |
| Jul 14, 3:58 PM EDT | Special Weather Statement | GYX | Grafton | 32 min |
| Jul 14, 4:29 PM EDT | Special Weather Statement | GYX | Belknap | 31 min |
| Jul 14, 4:32 PM EDT | Severe Thunderstorm Warning | GYX | Cheshire | 43 min |
| Jul 14, 4:41 PM EDT | Severe Thunderstorm Warning | GYX | Belknap, Grafton, Merrimack | 34 min |
| Jul 14, 5:15 PM EDT | Special Weather Statement | GYX | Belknap | 30 min |
| Jul 14, 5:17 PM EDT | Special Weather Statement | GYX | Cheshire | 28 min |
| Jul 14, 6:00 PM EDT | Special Weather Statement | GYX | Hillsborough | 30 min |
| Jul 14, 7:19 PM EDT | Special Weather Statement | GYX | Hillsborough | 26 min |
| Jul 14, 8:33 PM EDT | Dense Fog Advisory | GYX | Rockingham | 12 hr |
| Jul 16, 3:19 AM EDT | Heat Advisory | GYX | Hillsborough, Rockingham, Strafford | 15 hr |
| Jul 17, 7:45 PM EDT | Flash Flood Warning | GYX | Cheshire, Hillsborough | 3 hr |
| Jul 17, 10:42 PM EDT | Areal Flood Warning | GYX | Cheshire, Hillsborough | 3 hr |
| Jul 17, 11:03 PM EDT | Special Weather Statement | GYX | Hillsborough | 42 min |
| Jul 18, 12:01 AM EDT | Flash Flood Warning | GYX | Cheshire, Hillsborough | 4 hr |
| Jul 18, 3:55 AM EDT | Areal Flood Advisory | GYX | Cheshire, Hillsborough | 2 hr |
| Jul 18, 5:56 AM EDT | Special Weather Statement | GYX | Rockingham | 34 min |
| Jul 18, 6:26 AM EDT | Areal Flood Warning | GYX | Cheshire, Hillsborough | 6 hr |
| Jul 18, 6:34 AM EDT | Special Weather Statement | GYX | Rockingham | 26 min |
| Jul 18, 7:59 AM EDT | Areal Flood Advisory | GYX | Belknap, Carroll, Rockingham, Strafford | 3 hr |
| Jul 18, 3:00 PM EDT | Areal Flood Warning | GYX | Cheshire | 30 hr |
| Jul 18, 9:01 PM EDT | Flash Flood Warning | GYX | Cheshire, Hillsborough | 3 hr |
| Jul 20, 1:30 PM EDT | Special Weather Statement | GYX | Carroll | 30 min |
| Jul 20, 1:36 PM EDT | Areal Flood Advisory | GYX | Carroll | 114 min |
| Jul 20, 7:12 PM EDT | Mesoscale Discussion | SPC | Belknap, Carroll, Cheshire, Grafton, Hillsborough, Merrimack and 1 more | 2 hr |
| Jul 20, 8:55 PM EDT | Special Weather Statement | GYX | Grafton | 50 min |
| Jul 20, 8:58 PM EDT | Severe Thunderstorm Warning | GYX | Grafton | 47 min |
| Jul 20, 9:15 PM EDT | Special Weather Statement | GYX | Sullivan | 30 min |
| Jul 20, 9:24 PM EDT | Severe Thunderstorm Warning | GYX | Grafton, Sullivan | 29 min |
| Jul 20, 9:35 PM EDT | Severe Thunderstorm Warning | GYX | Belknap, Grafton, Merrimack, Sullivan | 40 min |
| Jul 20, 9:47 PM EDT | Special Weather Statement | GYX | Sullivan | 43 min |
| Jul 20, 10:01 PM EDT | Mesoscale Discussion | SPC | Belknap, Carroll, Cheshire, Hillsborough, Merrimack, Rockingham and 2 more | 59 min |
| Jul 20, 10:10 PM EDT | Severe Thunderstorm Warning | GYX | Belknap, Carroll, Grafton | 50 min |
| Jul 20, 10:14 PM EDT | Severe Thunderstorm Warning | GYX | Cheshire, Hillsborough, Merrimack, Sullivan | 46 min |
| Jul 20, 10:15 PM EDT | Special Weather Statement | GYX | Rockingham | 45 min |
| Jul 20, 10:33 PM EDT | Special Weather Statement | GYX | Cheshire | 42 min |
| Jul 20, 10:36 PM EDT | Severe Thunderstorm Warning | GYX | Cheshire, Hillsborough | 39 min |
| Jul 20, 10:38 PM EDT | Severe Thunderstorm Warning | GYX | Belknap, Carroll, Strafford | 41 min |
| Jul 20, 10:57 PM EDT | Severe Thunderstorm Warning | GYX | Belknap, Cheshire, Hillsborough, Merrimack | 48 min |
| Jul 20, 11:10 PM EDT | Special Weather Statement | GYX | Rockingham | 35 min |
| Jul 20, 11:28 PM EDT | Severe Thunderstorm Warning | GYX | Hillsborough, Merrimack, Rockingham | 47 min |
| Jul 20, 11:32 PM EDT | Special Weather Statement | GYX | Strafford | 43 min |
| Jul 20, 11:42 PM EDT | Special Weather Statement | GYX | Rockingham | 48 min |
| Jul 20, 11:55 PM EDT | Severe Thunderstorm Warning | GYX | Rockingham | 25 min |
| Jul 21, 12:06 AM EDT | Special Weather Statement | GYX | Rockingham | 24 min |
| Jul 21, 12:13 AM EDT | Severe Thunderstorm Warning | GYX | Rockingham, Strafford | 30 min |
| Jul 23, 12:31 PM EDT | Special Weather Statement | GYX | Coos | 29 min |
| Jul 23, 12:53 PM EDT | Special Weather Statement | GYX | Hillsborough | 37 min |
| Jul 23, 12:57 PM EDT | Severe Thunderstorm Warning | GYX | Belknap, Carroll, Strafford | 33 min |
| Jul 23, 1:20 PM EDT | Special Weather Statement | GYX | Belknap | 25 min |
| Jul 23, 1:37 PM EDT | Special Weather Statement | GYX | Carroll | 23 min |
| Jul 23, 1:52 PM EDT | Special Weather Statement | GYX | Carroll | 23 min |
| Jul 23, 2:13 PM EDT | Severe Thunderstorm Warning | GYX | Rockingham, Strafford | 27 min |
| Jul 23, 2:16 PM EDT | Special Weather Statement | GYX | Carroll | 29 min |
| Jul 23, 2:24 PM EDT | Severe Thunderstorm Warning | GYX | Carroll | 51 min |
| Jul 23, 2:36 PM EDT | Special Weather Statement | GYX | Belknap | 24 min |
| Jul 23, 2:42 PM EDT | Severe Thunderstorm Warning | GYX | Belknap, Carroll, Grafton | 33 min |
| Jul 23, 3:35 PM EDT | Special Weather Statement | GYX | Coos | 25 min |
| Jul 23, 3:38 PM EDT | Severe Thunderstorm Warning | GYX | Rockingham | 21 min |
| Jul 23, 3:39 PM EDT | Coastal Flood Statement | GYX | Rockingham | 10 hr |
| Jul 23, 4:18 PM EDT | Special Weather Statement | GYX | Merrimack | 27 min |
| Jul 23, 4:27 PM EDT | Special Weather Statement | GYX | Rockingham | 33 min |
| Jul 23, 4:38 PM EDT | Severe Thunderstorm Warning | GYX | Rockingham | 18 min |
| Jul 23, 4:43 PM EDT | Severe Thunderstorm Warning | GYX | Hillsborough, Merrimack, Rockingham | 47 min |
| Jul 23, 5:18 PM EDT | Severe Thunderstorm Warning | GYX | Carroll, Coos, Grafton | 42 min |
| Jul 23, 5:35 PM EDT | Severe Thunderstorm Warning | GYX | Carroll | 18 min |
| Jul 23, 5:47 PM EDT | Mesoscale Discussion | SPC | Belknap, Carroll, Grafton, Hillsborough, Merrimack, Rockingham and 1 more | 58 min |
| Jul 23, 5:59 PM EDT | Special Weather Statement | GYX | Coos | 31 min |
| Jul 23, 6:25 PM EDT | Special Weather Statement | GYX | Grafton | 35 min |
| Jul 23, 7:35 PM EDT | Special Weather Statement | GYX | Carroll | 25 min |
| Jul 23, 8:06 PM EDT | Special Weather Statement | GYX | Belknap | 39 min |
| Jul 25, 8:43 PM EDT | Special Weather Statement | GYX | Grafton | 32 min |
| Jul 25, 9:16 PM EDT | Special Weather Statement | GYX | Grafton | 29 min |
| Jul 25, 9:57 PM EDT | Special Weather Statement | GYX | Belknap | 33 min |
| Jul 27, 2:47 PM EDT | Severe Thunderstorm Watch | SPC | Cheshire, Hillsborough | 6 hr |
| Jul 27, 4:30 PM EDT | Severe Thunderstorm Warning | GYX | Cheshire, Sullivan | 45 min |
| Jul 27, 4:36 PM EDT | Mesoscale Discussion | SPC | Cheshire, Hillsborough, Sullivan | 84 min |
| Jul 27, 5:13 PM EDT | Special Weather Statement | GYX | Cheshire | 32 min |
| Jul 27, 5:38 PM EDT | Special Weather Statement | GYX | Strafford | 37 min |
| Jul 27, 6:00 PM EDT | Special Weather Statement | GYX | Rockingham | 30 min |
| Jul 27, 6:16 PM EDT | Special Weather Statement | GYX | Strafford | 29 min |
| Jul 27, 6:30 PM EDT | Special Weather Statement | GYX | Rockingham | 30 min |
| Jul 27, 6:36 PM EDT | Severe Thunderstorm Warning | GYX | Rockingham, Strafford | 39 min |
| Jul 27, 6:54 PM EDT | Areal Flood Advisory | GYX | Rockingham, Strafford | 111 min |
| Jul 29, 8:35 PM EDT | Flash Flood Warning | GYX | Cheshire, Hillsborough, Merrimack, Sullivan | 6 hr |
| Jul 29, 8:58 PM EDT | Areal Flood Advisory | GYX | Belknap, Carroll, Grafton, Hillsborough, Merrimack, Rockingham and 2 more | 4 hr |
| Jul 29, 9:14 PM EDT | Special Weather Statement | GYX | Hillsborough | 46 min |
| Jul 29, 9:33 PM EDT | Flash Flood Warning | GYX | Belknap, Carroll, Grafton, Merrimack, Rockingham, Strafford and 1 more | 5 hr |
| Jul 29, 9:57 PM EDT | Special Weather Statement | GYX | Rockingham, Strafford | 48 min |
| Jul 29, 10:32 PM EDT | Flash Flood Warning | GYX | Cheshire, Hillsborough | 3 hr |
| Jul 29, 10:36 PM EDT | Areal Flood Advisory | GYX | Hillsborough, Merrimack, Rockingham | 3 hr |
| Jul 29, 10:58 PM EDT | Flash Flood Warning | GYX | Hillsborough, Rockingham | 3 hr |
| Jul 30, 1:34 AM EDT | River Flood Warning | GYX | Merrimack | 41 hr |
| Jul 30, 6:10 AM EDT | River Flood Warning | GYX | Merrimack | 24 hr |
| Jul 30, 4:05 PM EDT | River Flood Warning | GYX | Merrimack | 7 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 | 26 |
| Severe Thunderstorm Watch | 2 |
| Mesoscale Discussion | 6 |
| Special Weather Statement | 53 |
| Flooding | |
| Areal Flood Warning | 3 |
| Flash Flood Warning | 9 |
| River Flood Warning | 3 |
| Flash Flood Watch | 2 |
| Areal Flood Advisory | 9 |
| Heat | |
| Heat Advisory | 1 |
| Fog and smoke | |
| Dense Fog Advisory | 3 |
| Coast and beach | |
| High Surf Advisory | 2 |
| Beach Hazards Statement | 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. Warning verification from the Mesonet's Cow. Rebuilt daily.