Weather alerts in New Hampshire, 2017
481 weather alerts in 2017, 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 2017. Tap one for its archive.
- Alerts
- 481
- Warnings
- 129
- Watches
- 30
- Advisories
- 112
- Busiest month
- July83 alerts
- Busiest day
- July 1, 201730 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
1 of 4 tornado warnings covering New Hampshire in 2017 had a tornado report inside them.
New Hampshire, 2017
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 4 | 1 | 75% | 0 | ||
| Severe thunderstorm warnings | 58 | 48 | 17% | 128 | 85% | 28 min |
| Flash flood warnings | 18 | 12 | 33% | 33 | 91% | 83 min |
Each office's whole area, 2017
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Gray, ME: tornado warnings | 7 | 3 | 57% | 10 | 80% | 16 min |
| NWS Gray, ME: severe thunderstorm warnings | 88 | 66 | 25% | 173 | 84% | 27 min |
| NWS Gray, ME: flash flood warnings | 25 | 14 | 44% | 51 | 90% | 92 min |
An office's figures cover every county it serves, including across state lines.
Verified by the Iowa Environmental Mesonet's Cow, which matches each storm-based warning with the local storm reports inside its polygon while it was in force, within 15 km of its edge: a tornado warning counts as verified on a tornado report, a severe thunderstorm warning on hail of 1 inch or more, a gust of 58 mph or more, or wind damage, a flash flood warning on a flash flood report. The false alarm ratio is the share of warnings with no such report; "inside a warning" is the probability of detection, the share of reports that fell inside one; lead time runs from the warning's issue to each report inside it, counting zero for a report that came first. A warning with no report is not proof nothing happened: reports come from spotters, the public and damage surveys, and are thin where few people live.
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 |
|---|---|---|---|---|
| Jan 1, 7:43 AM EST | Special Weather Statement | GYX | Carroll | 62 min |
| Jan 2, 3:17 AM EST | Winter Storm Watch | GYX | Coos | 24 hr |
| Jan 2, 3:38 PM EST | Winter Weather Advisory | GYX | Belknap, Carroll, Cheshire, Coos, Grafton, Hillsborough and 4 more | 39 hr |
| Jan 3, 11:04 PM EST | Coastal Flood Statement | GYX | Rockingham | 4 hr |
| Jan 4, 2:16 AM EST | Mesoscale Discussion | SPC | Carroll, Coos | 6 hr |
| Jan 6, 2:38 PM EST | Winter Weather Advisory | GYX | Hillsborough, Rockingham | 37 hr |
| Jan 8, 3:13 PM EST | Wind Chill Warning | GYX | Coos, Grafton | 18 hr |
| Jan 10, 2:40 PM EST | Coastal Flood Statement | GYX | Rockingham | 20 hr |
| Jan 10, 8:46 PM EST | Special Weather Statement | GYX | Hillsborough, Merrimack | 44 min |
| Jan 12, 8:55 AM EST | Coastal Flood Statement | GYX | Rockingham | 2 hr |
| Jan 13, 3:08 AM EST | Wind Chill Advisory | GYX | Coos | 29 hr |
| Jan 16, 3:12 PM EST | Winter Storm Watch | GYX | Belknap, Carroll, Cheshire, Grafton, Hillsborough, Merrimack and 3 more | 12 hr |
| Jan 17, 3:29 AM EST | Winter Storm Warning | GYX | Belknap, Carroll, Hillsborough, Merrimack, Strafford | 32 hr |
| Jan 17, 3:29 AM EST | Winter Weather Advisory | GYX | Belknap, Carroll, Cheshire, Coos, Grafton, Hillsborough and 4 more | 38 hr |
| Jan 22, 3:18 PM EST | Winter Storm Watch | GYX | Belknap, Carroll, Cheshire, Grafton, Hillsborough, Merrimack and 2 more | 25 hr |
| Jan 23, 3:18 AM EST | Winter Weather Advisory | GYX | Belknap, Carroll, Cheshire, Coos, Grafton, Hillsborough and 4 more | 48 hr |
| Jan 23, 4:10 PM EST | Coastal Flood Advisory | GYX | Rockingham | 18 hr |
| Jan 23, 11:48 PM EST | Mesoscale Discussion | SPC | Belknap, Carroll, Coos, Grafton, Hillsborough, Merrimack and 3 more | 6 hr |
| Jan 24, 5:43 AM EST | Freezing Rain Advisory | GYX | Rockingham, Strafford | 19 hr |
| Jan 24, 5:44 AM EST | Mesoscale Discussion | SPC | Belknap, Carroll, Cheshire, Coos, Grafton, Hillsborough and 4 more | 6 hr |
| Jan 27, 9:25 PM EST | Winter Weather Advisory | GYX | Coos | 10 hr |
| Jan 27, 9:29 PM EST | Special Weather Statement | GYX | Grafton | 91 min |
| Feb 1, 5:07 PM EST | Special Weather Statement | GYX | Carroll | 53 min |
| Feb 1, 6:43 PM EST | Special Weather Statement | GYX | Carroll | 47 min |
| Feb 6, 12:43 AM EST | Special Weather Statement | GYX | Carroll | 47 min |
| Feb 6, 3:09 PM EST | Winter Weather Advisory | GYX | Belknap, Carroll, Cheshire, Coos, Grafton, Hillsborough and 4 more | 42 hr |
| Feb 7, 5:44 PM EST | Mesoscale Discussion | SPC | Belknap, Carroll, Cheshire, Grafton, Hillsborough, Merrimack and 3 more | 5 hr |
| Feb 7, 11:18 PM EST | Mesoscale Discussion | SPC | Belknap, Cheshire, Grafton, Hillsborough, Merrimack, Rockingham and 2 more | 5 hr |
| Feb 8, 4:42 AM EST | Winter Storm Watch | GYX | Cheshire, Hillsborough, Merrimack, Rockingham, Strafford | 11 hr |
| Feb 8, 3:15 PM EST | Winter Storm Warning | GYX | Belknap, Carroll, Cheshire, Grafton, Hillsborough, Merrimack and 3 more | 31 hr |
| Feb 8, 3:15 PM EST | Winter Weather Advisory | GYX | Belknap, Carroll, Grafton, Sullivan | 18 hr |
| Feb 9, 3:36 AM EST | Coastal Flood Statement | GYX | Rockingham | 8 hr |
| Feb 9, 4:55 AM EST | Mesoscale Discussion | SPC | Belknap, Cheshire, Grafton, Hillsborough, Merrimack, Rockingham and 1 more | 6 hr |
| Feb 9, 9:28 AM EST | Winter Weather Advisory | GYX | Coos | 11 hr |
| Feb 9, 11:05 AM EST | Mesoscale Discussion | SPC | Rockingham, Strafford | 4 hr |
| Feb 9, 12:42 PM EST | Special Weather Statement | GYX | Hillsborough, Rockingham, Strafford | 2 hr |
| Feb 9, 3:20 PM EST | Mesoscale Discussion | SPC | Rockingham | 6 hr |
| Feb 9, 8:49 PM EST | Wind Chill Advisory | GYX | Carroll, Coos, Grafton | 13 hr |
| Feb 10, 3:45 PM EST | Winter Storm Watch | GYX | Belknap, Carroll, Cheshire, Coos, Grafton, Hillsborough and 4 more | 25 hr |
| Feb 11, 4:20 PM EST | Blizzard Watch | GYX | Rockingham, Strafford | 24 hr |
| Feb 11, 4:20 PM EST | Winter Storm Warning | GYX | Belknap, Carroll, Cheshire, Coos, Grafton, Hillsborough and 4 more | 51 hr |
| Feb 11, 9:33 PM EST | Coastal Flood Watch | GYX | Rockingham | 31 hr |
| Feb 12, 2:55 AM EST | Coastal Flood Advisory | GYX | Rockingham | 24 hr |
| Feb 12, 9:59 AM EST | Mesoscale Discussion | SPC | Cheshire, Hillsborough, Merrimack, Sullivan | 5 hr |
| Feb 12, 2:51 PM EST | Mesoscale Discussion | SPC | Belknap, Carroll, Cheshire, Coos, Grafton, Hillsborough and 4 more | 4 hr |
| Feb 13, 4:30 AM EST | Coastal Flood Advisory | GYX | Rockingham | 10 hr |
| Feb 13, 11:46 AM EST | Wind Advisory | GYX | Hillsborough, Merrimack, Rockingham, Strafford | 4 hr |
| Feb 14, 12:34 AM EST | Coastal Flood Statement | GYX | Rockingham | 86 min |
| Feb 14, 3:49 AM EST | Winter Storm Watch | GYX | Belknap, Carroll, Coos, Grafton, Strafford | 24 hr |
| Feb 14, 3:50 PM EST | Winter Storm Warning | GYX | Belknap, Carroll, Coos, Grafton, Merrimack, Rockingham and 1 more | 46 hr |
| Feb 14, 3:50 PM EST | Winter Weather Advisory | GYX | Belknap, Cheshire, Grafton, Hillsborough, Merrimack, Strafford and 1 more | 42 hr |
| Feb 15, 1:26 PM EST | Special Weather Statement | GYX | Cheshire, Sullivan | 64 min |
| Feb 15, 2:26 PM EST | Special Weather Statement | GYX | Cheshire, Sullivan | 64 min |
| Feb 23, 2:58 PM EST | Flood Watch | GYX | Belknap, Carroll, Cheshire, Coos, Grafton, Hillsborough and 2 more | 4 days |
| Feb 24, 6:35 PM EST | Dense Fog Advisory | GYX | Carroll, Coos, Grafton, Rockingham, Strafford | 18 hr |
| Feb 25, 1:17 PM EST | Areal Flood Advisory | GYX | Coos, Grafton | 6 hr |
| Feb 25, 6:08 PM EST | Dense Fog Advisory | GYX | Rockingham, Strafford | 6 hr |
| Feb 25, 6:24 PM EST | Mesoscale Discussion | SPC | Belknap, Cheshire, Hillsborough, Merrimack, Rockingham, Strafford and 1 more | 66 min |
| Feb 25, 7:59 PM EST | Special Weather Statement | GYX | Cheshire, Hillsborough, Merrimack, Sullivan | 61 min |
| Feb 25, 8:38 PM EST | Special Weather Statement | GYX | Belknap, Carroll, Grafton | 52 min |
| Feb 25, 8:40 PM EST | Special Weather Statement | GYX | Hillsborough, Merrimack, Rockingham, Strafford | 65 min |
| Feb 25, 9:42 PM EST | Special Weather Statement | GYX | Carroll, Coos, Strafford | 63 min |
| Feb 26, 2:55 AM EST | River Flood Warning | GYX | Grafton | 22 hr |
| Mar 1, 3:28 AM EST | Wind Advisory | GYX | Belknap, Carroll, Cheshire, Coos, Grafton, Hillsborough and 4 more | 39 hr |
| Mar 1, 8:04 AM EST | Dense Fog Advisory | GYX | Belknap, Carroll, Hillsborough, Merrimack, Rockingham, Strafford | 5 hr |
| Mar 1, 1:27 PM EST | Dense Fog Advisory | GYX | Belknap, Carroll, Grafton | 7 hr |
| Mar 1, 11:12 PM EST | Dense Fog Advisory | GYX | Carroll, Cheshire, Coos, Grafton, Sullivan | 7 hr |
| Mar 3, 3:34 AM EST | Wind Chill Advisory | GYX | Carroll, Coos, Grafton | 302 days |
| Mar 3, 5:49 PM EST | Special Weather Statement | GYX | Cheshire | 56 min |
| Mar 3, 6:45 PM EST | Special Weather Statement | GYX | Belknap, Carroll, Grafton, Hillsborough, Merrimack | 60 min |
| Mar 3, 7:34 PM EST | Special Weather Statement | GYX | Strafford | 41 min |
| Mar 7, 3:44 AM EST | Freezing Rain Advisory | GYX | Carroll | 20 hr |
| Mar 8, 12:46 AM EST | Dense Fog Advisory | GYX | Belknap, Carroll, Cheshire, Hillsborough, Merrimack, Rockingham and 2 more | 8 hr |
| Mar 8, 2:56 PM EST | Special Weather Statement | GYX | Belknap, Cheshire, Grafton, Hillsborough, Merrimack, Sullivan | 79 min |
| Mar 8, 4:28 PM EST | Special Weather Statement | GYX | Belknap, Carroll, Cheshire, Coos, Grafton, Hillsborough and 4 more | 47 min |
| Mar 9, 8:14 AM EST | Wind Advisory | GYX | Belknap, Carroll, Cheshire, Grafton, Hillsborough, Merrimack and 3 more | 8 hr |
| Mar 10, 3:02 AM EST | Wind Chill Advisory | GYX | Belknap, Carroll, Coos, Grafton, Merrimack, Strafford and 1 more | 53 hr |
| Mar 10, 3:42 PM EST | Wind Chill Warning | GYX | Coos | 41 hr |
| Mar 11, 4:01 PM EST | Winter Storm Watch | GYX | Belknap, Carroll, Cheshire, Coos, Grafton, Hillsborough and 4 more | 35 hr |
| Mar 13, 3:58 AM EDT | Winter Storm Warning | GYX | Belknap, Carroll, Cheshire, Coos, Grafton, Hillsborough and 4 more | 55 hr |
| Mar 13, 3:44 PM EDT | Blizzard Warning | GYX | Hillsborough, Rockingham, Strafford | 36 hr |
| Mar 14, 9:04 AM EDT | Mesoscale Discussion | SPC | Belknap, Carroll, Cheshire, Grafton, Hillsborough, Merrimack and 3 more | 4 hr |
| Mar 14, 1:57 PM EDT | Mesoscale Discussion | SPC | Belknap, Carroll, Cheshire, Coos, Grafton, Hillsborough and 4 more | 5 hr |
| Mar 14, 3:00 PM EDT | Coastal Flood Advisory | GYX | Rockingham | 12 hr |
| Mar 14, 5:36 PM EDT | Mesoscale Discussion | SPC | Coos | 6 hr |
| Mar 22, 3:31 AM EDT | Wind Advisory | GYX | Belknap, Carroll, Hillsborough, Merrimack, Rockingham, Strafford | 17 hr |
| Mar 22, 4:48 AM EDT | Special Weather Statement | GYX | Carroll, Coos | 72 min |
| Mar 24, 1:56 PM EDT | Winter Weather Advisory | GYX | Belknap, Carroll, Coos, Grafton | 9 hr |
| Mar 26, 4:08 AM EDT | Winter Weather Advisory | GYX | Belknap, Carroll, Coos, Grafton, Strafford | 17 hr |
| Mar 26, 4:08 AM EDT | Freezing Rain Advisory | GYX | Cheshire, Grafton, Hillsborough, Merrimack, Rockingham, Sullivan | 17 hr |
| Mar 26, 9:14 PM EDT | Winter Weather Advisory | GYX | Belknap, Carroll, Coos, Grafton, Strafford | 20 hr |
| Mar 26, 9:14 PM EDT | Freezing Rain Advisory | GYX | Belknap, Carroll, Cheshire, Grafton, Hillsborough, Merrimack and 3 more | 18 hr |
| Mar 29, 3:56 PM EDT | Winter Storm Watch | GYX | Belknap, Carroll, Cheshire, Coos, Grafton, Hillsborough and 4 more | 35 hr |
| Mar 30, 3:57 PM EDT | Winter Storm Warning | GYX | Belknap, Carroll, Cheshire, Coos, Grafton, Hillsborough and 4 more | 51 hr |
| Mar 31, 3:21 AM EDT | Winter Weather Advisory | GYX | Coos | 39 hr |
| Mar 31, 8:17 PM EDT | Coastal Flood Statement | GYX | Rockingham | 8 hr |
| Mar 31, 8:17 PM EDT | Mesoscale Discussion | SPC | Belknap, Cheshire, Hillsborough, Merrimack, Rockingham, Strafford and 1 more | 6 hr |
| Apr 1, 7:20 AM EDT | Mesoscale Discussion | SPC | Hillsborough, Rockingham, Strafford | 5 hr |
| Apr 2, 1:37 AM EDT | Coastal Flood Statement | GYX | Rockingham | 2 hr |
| Apr 3, 3:19 AM EDT | Winter Storm Watch | GYX | Carroll | 12 hr |
| Apr 3, 3:34 PM EDT | Winter Storm Warning | GYX | Carroll | 36 hr |
| Apr 3, 3:34 PM EDT | Winter Weather Advisory | GYX | Carroll, Coos | 13 hr |
| Apr 4, 4:27 AM EDT | Winter Weather Advisory | GYX | Coos | 23 hr |
| Apr 4, 3:40 PM EDT | Flood Watch | GYX | Belknap, Carroll, Cheshire, Grafton, Hillsborough, Merrimack and 3 more | 60 hr |
| Apr 6, 1:42 PM EDT | River Flood Warning | GYX | Merrimack | 71 hr |
| Apr 11, 12:19 PM EDT | Flood Watch | GYX | Carroll, Coos, Grafton | 32 hr |
| Apr 11, 5:56 PM EDT | Special Weather Statement | GYX | Grafton, Sullivan | 34 min |
| Apr 11, 6:41 PM EDT | Special Weather Statement | GYX | Carroll | 34 min |
| Apr 11, 9:44 PM EDT | River Flood Warning | GYX | Coos | 72 hr |
| Apr 16, 6:05 PM EDT | Special Weather Statement | GYX | Belknap, Carroll, Coos, Grafton, Merrimack, Sullivan | 40 min |
| Apr 16, 6:46 PM EDT | Special Weather Statement | GYX | Belknap, Carroll, Hillsborough, Merrimack, Strafford | 44 min |
| Apr 16, 9:09 PM EDT | River Flood Warning | GYX | Coos | 65 hr |
| Apr 17, 5:11 AM EDT | River Flood Warning | GYX | Coos | 41 hr |
| Apr 25, 3:15 PM EDT | Coastal Flood Advisory | GYX | Rockingham | 10 hr |
| Apr 26, 3:24 AM EDT | Coastal Flood Advisory | GYX | Rockingham | 23 hr |
| Apr 27, 3:30 AM EDT | Coastal Flood Advisory | GYX | Rockingham | 24 hr |
| May 1, 10:45 PM EDT | Special Weather Statement | GYX | Cheshire, Sullivan | 45 min |
| May 2, 2:44 PM EDT | River Flood Warning | GYX | Coos | 5 days |
| May 5, 3:02 PM EDT | Flood Watch | GYX | Rockingham, Strafford | 12 hr |
| May 15, 9:25 PM EDT | River Flood Warning | GYX | Coos | 35 hr |
| May 18, 5:01 PM EDT | Beach Hazards Statement | GYX | Rockingham | 27 hr |
| May 18, 5:44 PM EDT | Special Weather Statement | GYX | Coos | 31 min |
| May 18, 6:15 PM EDT | Special Weather Statement | GYX | Coos | 30 min |
| May 18, 7:33 PM EDT | Mesoscale Discussion | SPC | Grafton, Sullivan | 87 min |
| May 18, 7:47 PM EDT | Special Weather Statement | GYX | Grafton | 28 min |
| May 18, 7:58 PM EDT | Severe Thunderstorm Warning | GYX | Grafton | 62 min |
| May 18, 8:31 PM EDT | Severe Thunderstorm Warning | GYX | Grafton | 59 min |
| May 18, 8:42 PM EDT | Severe Thunderstorm Warning | GYX | Cheshire, Hillsborough, Merrimack, Sullivan | 63 min |
| May 18, 8:46 PM EDT | Special Weather Statement | GYX | Carroll | 29 min |
| May 18, 8:50 PM EDT | Special Weather Statement | GYX | Coos | 25 min |
| May 18, 9:16 PM EDT | Severe Thunderstorm Warning | GYX | Carroll, Coos, Grafton | 44 min |
| May 18, 9:22 PM EDT | Severe Thunderstorm Warning | GYX | Coos, Grafton | 38 min |
| May 18, 9:37 PM EDT | Severe Thunderstorm Warning | GYX | Cheshire, Hillsborough, Merrimack, Rockingham | 68 min |
| May 18, 9:53 PM EDT | Severe Thunderstorm Warning | GYX | Carroll, Coos | 52 min |
| May 18, 10:29 PM EDT | Special Weather Statement | GYX | Rockingham | 61 min |
| May 20, 3:16 AM EDT | Beach Hazards Statement | GYX | Rockingham | 17 hr |
| May 20, 3:27 AM EDT | Frost Advisory | GYX | Carroll, Grafton, Strafford | 28 hr |
| May 20, 3:27 AM EDT | Freeze Warning | GYX | Carroll, Coos | 28 hr |
| May 21, 3:36 AM EDT | Beach Hazards Statement | GYX | Rockingham | 16 hr |
| May 24, 8:38 PM EDT | Coastal Flood Statement | GYX | Rockingham | 3 hr |
| May 25, 3:58 AM EDT | Coastal Flood Advisory | GYX | Rockingham | 21 hr |
| May 25, 9:41 PM EDT | Coastal Flood Warning | GYX | Rockingham | 3 hr |
| May 26, 10:42 AM EDT | Coastal Flood Statement | GYX | Rockingham | 2 hr |
| May 26, 2:49 PM EDT | Coastal Flood Statement | GYX | Rockingham | 8 hr |
| May 26, 7:16 PM EDT | Coastal Flood Advisory | GYX | Rockingham | 6 hr |
| May 27, 2:34 PM EDT | Coastal Flood Statement | GYX | Rockingham | 11 hr |
| May 27, 11:58 PM EDT | Coastal Flood Advisory | GYX | Rockingham | 2 hr |
| May 28, 2:45 PM EDT | Coastal Flood Statement | GYX | Rockingham | 12 hr |
| May 31, 12:29 PM EDT | Mesoscale Discussion | SPC | Belknap, Carroll, Cheshire, Coos, Grafton, Hillsborough and 2 more | 61 min |
| May 31, 1:22 PM EDT | Severe Thunderstorm Watch | SPC | Belknap, Carroll, Cheshire, Coos, Grafton, Hillsborough and 2 more | 8 hr |
| May 31, 2:41 PM EDT | Special Weather Statement | GYX | Cheshire | 34 min |
| May 31, 4:33 PM EDT | Severe Thunderstorm Warning | GYX | Coos, Grafton | 42 min |
| May 31, 4:46 PM EDT | Mesoscale Discussion | SPC | Belknap, Carroll, Cheshire, Coos, Grafton, Hillsborough and 2 more | 119 min |
| May 31, 4:58 PM EDT | Severe Thunderstorm Warning | GYX | Coos, Grafton | 47 min |
| May 31, 5:17 PM EDT | Severe Thunderstorm Warning | GYX | Grafton, Merrimack, Sullivan | 58 min |
| May 31, 5:44 PM EDT | Severe Thunderstorm Warning | GYX | Carroll, Coos, Grafton | 61 min |
| May 31, 6:12 PM EDT | Special Weather Statement | GYX | Cheshire | 63 min |
| May 31, 6:13 PM EDT | Special Weather Statement | GYX | Belknap, Carroll, Merrimack, Sullivan | 62 min |
| May 31, 6:40 PM EDT | Special Weather Statement | GYX | Carroll | 65 min |
| May 31, 6:46 PM EDT | Severe Thunderstorm Warning | GYX | Carroll | 44 min |
| May 31, 7:06 PM EDT | Areal Flood Advisory | GYX | Sullivan | 114 min |
| May 31, 7:09 PM EDT | Special Weather Statement | GYX | Belknap, Hillsborough, Merrimack | 66 min |
| May 31, 7:22 PM EDT | Severe Thunderstorm Warning | GYX | Carroll | 38 min |
| May 31, 7:27 PM EDT | Severe Thunderstorm Warning | GYX | Belknap, Merrimack | 48 min |
| May 31, 7:34 PM EDT | Mesoscale Discussion | SPC | Belknap, Carroll, Cheshire, Hillsborough, Merrimack, Rockingham and 1 more | 86 min |
| May 31, 7:58 PM EDT | Special Weather Statement | GYX | Rockingham | 62 min |
| May 31, 8:13 PM EDT | Severe Thunderstorm Warning | GYX | Hillsborough, Rockingham | 62 min |
| May 31, 8:49 PM EDT | Special Weather Statement | GYX | Strafford | 56 min |
| May 31, 9:07 PM EDT | Severe Thunderstorm Warning | GYX | Strafford | 32 min |
| Jun 1, 3:30 AM EDT | Dense Fog Advisory | GYX | Belknap, Cheshire, Grafton, Hillsborough, Merrimack, Rockingham and 2 more | 5 hr |
| Jun 1, 12:06 PM EDT | Mesoscale Discussion | SPC | Rockingham, Strafford | 2 hr |
| Jun 6, 11:22 PM EDT | Areal Flood Advisory | GYX | Belknap, Carroll, Grafton, Strafford | 3 hr |
| Jun 7, 3:21 AM EDT | Dense Fog Advisory | GYX | Coos | 4 hr |
| Jun 10, 3:41 AM EDT | Beach Hazards Statement | GYX | Rockingham | 16 hr |
| Jun 13, 8:19 AM EDT | Heat Advisory | GYX | Hillsborough, Rockingham, Strafford | 10 hr |
| Jun 18, 3:19 AM EDT | Flash Flood Watch | GYX | Belknap, Carroll, Cheshire, Coos, Grafton, Hillsborough and 2 more | 41 hr |
| Jun 19, 10:33 AM EDT | Special Weather Statement | GYX | Cheshire | 27 min |
| Jun 19, 10:45 AM EDT | Mesoscale Discussion | SPC | Belknap, Carroll, Cheshire, Coos, Grafton, Hillsborough and 2 more | 3 hr |
| Jun 19, 11:02 AM EDT | Special Weather Statement | GYX | Merrimack | 43 min |
| Jun 19, 11:44 AM EDT | Special Weather Statement | GYX | Cheshire | 46 min |
| Jun 19, 12:24 PM EDT | Severe Thunderstorm Watch | SPC | Belknap, Carroll, Cheshire, Coos, Grafton, Hillsborough and 4 more | 8 hr |
| Jun 19, 1:00 PM EDT | Severe Thunderstorm Warning | GYX | Belknap, Carroll, Merrimack, Strafford | 60 min |
| Jun 19, 2:10 PM EDT | Special Weather Statement | GYX | Cheshire | 50 min |
| Jun 19, 2:39 PM EDT | Flash Flood Warning | GYX | Cheshire, Sullivan | 6 hr |
| Jun 19, 2:58 PM EDT | Mesoscale Discussion | SPC | Belknap, Carroll, Cheshire, Coos, Grafton, Hillsborough and 3 more | 2 hr |
| Jun 19, 3:30 PM EDT | Flash Flood Warning | GYX | Grafton, Hillsborough, Merrimack, Sullivan | 3 hr |
| Jun 19, 3:37 PM EDT | Severe Thunderstorm Warning | GYX | Belknap, Carroll | 68 min |
| Jun 19, 3:44 PM EDT | Severe Thunderstorm Warning | GYX | Belknap, Grafton, Merrimack, Sullivan | 46 min |
| Jun 19, 3:52 PM EDT | Flash Flood Warning | GYX | Belknap, Carroll, Grafton, Hillsborough, Merrimack | 3 hr |
| Jun 19, 4:29 PM EDT | Severe Thunderstorm Warning | GYX | Belknap, Carroll, Strafford | 46 min |
| Jun 19, 4:57 PM EDT | Severe Thunderstorm Warning | GYX | Cheshire, Sullivan | 48 min |
| Jun 19, 5:02 PM EDT | Flash Flood Warning | GYX | Coos | 3 hr |
| Jun 19, 5:41 PM EDT | Severe Thunderstorm Warning | GYX | Hillsborough, Merrimack | 64 min |
| Jun 19, 6:39 PM EDT | Severe Thunderstorm Warning | GYX | Belknap, Carroll, Strafford | 36 min |
| Jun 19, 7:31 PM EDT | Areal Flood Advisory | GYX | Belknap, Carroll, Grafton, Merrimack, Strafford | 59 min |
| Jun 23, 2:02 PM EDT | Mesoscale Discussion | SPC | Belknap, Carroll, Cheshire, Coos, Grafton, Hillsborough and 4 more | 2 hr |
| Jun 23, 2:47 PM EDT | Special Weather Statement | GYX | Rockingham | 43 min |
| Jun 23, 3:08 PM EDT | Coastal Flood Statement | GYX | Rockingham | 10 hr |
| Jun 24, 3:00 PM EDT | Coastal Flood Statement | GYX | Rockingham | 10 hr |
| Jun 25, 8:21 AM EDT | Beach Hazards Statement | GYX | Rockingham | 12 hr |
| Jun 25, 2:51 PM EDT | Coastal Flood Statement | GYX | Rockingham | 11 hr |
| Jun 25, 6:45 PM EDT | Special Weather Statement | GYX | Coos | 30 min |
| Jun 25, 7:09 PM EDT | Severe Thunderstorm Warning | GYX | Coos | 41 min |
| Jun 27, 12:00 PM EDT | Mesoscale Discussion | SPC | Belknap, Carroll, Cheshire, Grafton, Hillsborough, Merrimack and 3 more | 2 hr |
| Jun 27, 2:44 PM EDT | Special Weather Statement | GYX | Strafford | 61 min |
| Jun 27, 3:37 PM EDT | Special Weather Statement | GYX | Cheshire | 23 min |
| Jun 27, 3:51 PM EDT | Special Weather Statement | GYX | Strafford | 54 min |
| Jun 27, 4:09 PM EDT | Severe Thunderstorm Warning | GYX | Cheshire, Hillsborough, Merrimack, Sullivan | 20 min |
| Jun 27, 7:17 PM EDT | Special Weather Statement | GYX | Cheshire | 28 min |
| Jun 27, 8:00 PM EDT | Special Weather Statement | GYX | Strafford | 30 min |
| Jun 27, 8:07 PM EDT | Special Weather Statement | GYX | Rockingham | 38 min |
| Jun 30, 3:38 AM EDT | Flash Flood Watch | GYX | Carroll, Coos, Grafton | 46 hr |
| Jun 30, 12:48 PM EDT | Mesoscale Discussion | SPC | Sullivan | 2 hr |
| Jun 30, 1:41 PM EDT | Severe Thunderstorm Watch | SPC | Belknap, Cheshire, Grafton, Hillsborough, Merrimack, Sullivan | 7 hr |
| Jun 30, 3:05 PM EDT | Special Weather Statement | GYX | Carroll | 25 min |
| Jun 30, 4:20 PM EDT | Mesoscale Discussion | SPC | Belknap, Cheshire, Grafton, Hillsborough, Merrimack, Sullivan | 115 min |
| Jun 30, 6:59 PM EDT | Areal Flood Advisory | GYX | Hillsborough, Merrimack, Rockingham | 2 hr |
| Jun 30, 7:06 PM EDT | Mesoscale Discussion | SPC | Belknap, Carroll, Cheshire, Grafton, Hillsborough, Merrimack and 1 more | 54 min |
| Jul 1, 10:32 AM EDT | Special Weather Statement | GYX | Merrimack | 28 min |
| Jul 1, 11:01 AM EDT | Special Weather Statement | GYX | Sullivan | 29 min |
| Jul 1, 12:14 PM EDT | Special Weather Statement | GYX | Grafton | 61 min |
| Jul 1, 12:32 PM EDT | Mesoscale Discussion | SPC | Belknap, Carroll, Cheshire, Coos, Grafton, Merrimack and 1 more | 118 min |
| Jul 1, 1:13 PM EDT | Special Weather Statement | GYX | Grafton | 62 min |
| Jul 1, 1:19 PM EDT | Severe Thunderstorm Watch | SPC | Belknap, Carroll, Cheshire, Grafton, Hillsborough, Merrimack and 3 more | 8 hr |
| Jul 1, 1:34 PM EDT | Severe Thunderstorm Warning | GYX | Carroll, Grafton | 41 min |
| Jul 1, 1:46 PM EDT | Tornado Warning | GYX | Carroll, Grafton | 26 min |
| Jul 1, 3:18 PM EDT | Severe Thunderstorm Warning | GYX | Grafton | 57 min |
| Jul 1, 3:23 PM EDT | Tornado Warning | GYX | Grafton | 14 min |
| Jul 1, 3:45 PM EDT | Beach Hazards Statement | GYX | Rockingham | 29 hr |
| Jul 1, 3:46 PM EDT | Special Weather Statement | GYX | Carroll | 29 min |
| Jul 1, 3:51 PM EDT | Severe Thunderstorm Warning | GYX | Carroll | 39 min |
| Jul 1, 4:02 PM EDT | Severe Thunderstorm Warning | GYX | Grafton | 58 min |
| Jul 1, 4:08 PM EDT | Areal Flood Advisory | GYX | Coos, Grafton | 2 hr |
| Jul 1, 4:10 PM EDT | Mesoscale Discussion | SPC | Belknap, Carroll, Cheshire, Grafton, Hillsborough, Merrimack and 1 more | 2 hr |
| Jul 1, 4:13 PM EDT | Tornado Warning | GYX | Carroll | 47 min |
| Jul 1, 4:19 PM EDT | Flash Flood Warning | GYX | Coos, Grafton | 116 min |
| Jul 1, 4:40 PM EDT | Severe Thunderstorm Warning | GYX | Belknap, Carroll, Coos, Grafton | 65 min |
| Jul 1, 5:01 PM EDT | Tornado Warning | GYX | Carroll | 21 min |
| Jul 1, 5:04 PM EDT | Severe Thunderstorm Warning | GYX | Grafton, Sullivan | 56 min |
| Jul 1, 5:10 PM EDT | Flash Flood Warning | GYX | Carroll, Coos, Grafton | 2 hr |
| Jul 1, 5:39 PM EDT | Flash Flood Warning | GYX | Belknap, Grafton, Merrimack, Sullivan | 2 hr |
| Jul 1, 5:48 PM EDT | Severe Thunderstorm Warning | GYX | Carroll | 42 min |
| Jul 1, 5:50 PM EDT | Severe Thunderstorm Warning | GYX | Belknap, Carroll, Grafton, Merrimack | 55 min |
| Jul 1, 6:19 PM EDT | Areal Flood Warning | GYX | Coos, Grafton | 116 min |
| Jul 1, 6:36 PM EDT | River Flood Warning | GYX | Grafton | 17 hr |
| Jul 1, 6:58 PM EDT | Flash Flood Warning | GYX | Carroll | 3 hr |
| Jul 1, 7:16 PM EDT | Severe Thunderstorm Warning | GYX | Cheshire, Grafton, Hillsborough, Merrimack, Sullivan | 59 min |
| Jul 1, 7:58 PM EDT | Flash Flood Warning | GYX | Grafton, Sullivan | 2 hr |
| Jul 1, 8:01 PM EDT | Special Weather Statement | GYX | Cheshire | 59 min |
| Jul 1, 9:34 PM EDT | Flash Flood Warning | GYX | Carroll, Coos, Grafton | 3 hr |
| Jul 1, 9:45 PM EDT | River Flood Warning | GYX | Grafton | 24 hr |
| Jul 1, 11:58 PM EDT | River Flood Warning | GYX | Grafton | 9 hr |
| Jul 2, 1:20 AM EDT | River Flood Warning | GYX | Carroll | 16 hr |
| Jul 2, 3:24 PM EDT | Beach Hazards Statement | GYX | Rockingham | 30 hr |
| Jul 3, 3:00 PM EDT | Beach Hazards Statement | GYX | Rockingham | 30 hr |
| Jul 8, 10:07 AM EDT | Special Weather Statement | GYX | Coos | 38 min |
| Jul 8, 10:50 AM EDT | Special Weather Statement | GYX | Coos | 40 min |
| Jul 8, 11:09 AM EDT | Mesoscale Discussion | SPC | Belknap, Carroll, Cheshire, Hillsborough, Merrimack, Rockingham and 1 more | 3 hr |
| Jul 8, 11:38 AM EDT | Special Weather Statement | GYX | Grafton | 52 min |
| Jul 8, 11:47 AM EDT | Areal Flood Advisory | GYX | Grafton | 58 min |
| Jul 8, 12:03 PM EDT | Special Weather Statement | GYX | Belknap, Cheshire, Merrimack | 42 min |
| Jul 8, 12:16 PM EDT | Severe Thunderstorm Warning | GYX | Belknap, Carroll, Cheshire, Grafton, Hillsborough, Merrimack and 1 more | 44 min |
| Jul 8, 12:58 PM EDT | Severe Thunderstorm Warning | GYX | Belknap, Carroll, Cheshire, Hillsborough, Merrimack, Rockingham and 1 more | 47 min |
| Jul 8, 1:07 PM EDT | Areal Flood Advisory | GYX | Hillsborough, Merrimack | 113 min |
| Jul 8, 1:25 PM EDT | Flash Flood Warning | GYX | Hillsborough, Merrimack, Rockingham, Strafford | 2 hr |
| Jul 8, 1:42 PM EDT | Severe Thunderstorm Warning | GYX | Carroll, Hillsborough, Merrimack, Rockingham, Strafford | 48 min |
| Jul 8, 3:20 PM EDT | Areal Flood Advisory | GYX | Coos, Grafton | 115 min |
| Jul 8, 3:37 PM EDT | Severe Thunderstorm Warning | GYX | Carroll, Coos, Grafton | 38 min |
| Jul 8, 6:52 PM EDT | Beach Hazards Statement | GYX | Rockingham | 25 hr |
| Jul 8, 8:16 PM EDT | Special Weather Statement | GYX | Rockingham | 29 min |
| Jul 12, 12:36 PM EDT | Areal Flood Advisory | GYX | Merrimack | 54 min |
| Jul 12, 12:51 PM EDT | Mesoscale Discussion | SPC | Cheshire, Hillsborough, Rockingham | 114 min |
| Jul 12, 2:39 PM EDT | Special Weather Statement | GYX | Carroll | 51 min |
| Jul 12, 6:14 PM EDT | Areal Flood Advisory | GYX | Hillsborough | 2 hr |
| Jul 12, 8:52 PM EDT | Special Weather Statement | GYX | Sullivan | 23 min |
| Jul 12, 9:35 PM EDT | Areal Flood Advisory | GYX | Cheshire, Merrimack, Sullivan | 3 hr |
| Jul 17, 12:14 PM EDT | Mesoscale Discussion | SPC | Grafton, Sullivan | 2 hr |
| Jul 17, 3:58 PM EDT | Special Weather Statement | GYX | Grafton | 32 min |
| Jul 17, 4:29 PM EDT | Areal Flood Advisory | GYX | Coos | 3 hr |
| Jul 17, 4:46 PM EDT | Special Weather Statement | GYX | Grafton | 29 min |
| Jul 17, 5:07 PM EDT | Severe Thunderstorm Warning | GYX | Grafton | 53 min |
| Jul 17, 6:58 PM EDT | Mesoscale Discussion | SPC | Belknap, Carroll, Cheshire, Grafton, Merrimack, Sullivan | 62 min |
| Jul 17, 7:06 PM EDT | Severe Thunderstorm Warning | GYX | Belknap, Carroll, Grafton | 54 min |
| Jul 17, 7:10 PM EDT | Severe Thunderstorm Warning | GYX | Carroll, Coos, Grafton | 65 min |
| Jul 17, 7:58 PM EDT | Severe Thunderstorm Warning | GYX | Carroll | 62 min |
| Jul 17, 8:47 PM EDT | Special Weather Statement | GYX | Belknap | 43 min |
| Jul 17, 8:56 PM EDT | Special Weather Statement | GYX | Cheshire | 64 min |
| Jul 17, 9:20 PM EDT | Flash Flood Warning | GYX | Belknap, Carroll, Grafton, Merrimack | 3 hr |
| Jul 17, 9:51 PM EDT | Special Weather Statement | GYX | Belknap, Carroll, Merrimack | 54 min |
| Jul 17, 11:03 PM EDT | Areal Flood Advisory | GYX | Belknap, Carroll, Strafford | 117 min |
| Jul 19, 3:04 AM EDT | Dense Fog Advisory | GYX | Carroll, Rockingham, Strafford | 6 hr |
| Jul 20, 1:38 PM EDT | Mesoscale Discussion | SPC | Belknap, Carroll, Coos, Grafton | 2 hr |
| Jul 20, 3:46 PM EDT | Special Weather Statement | GYX | Rockingham | 44 min |
| Jul 20, 4:32 PM EDT | Special Weather Statement | GYX | Belknap | 58 min |
| Jul 23, 12:52 PM EDT | Coastal Flood Advisory | GYX | Rockingham | 12 hr |
| Jul 24, 3:29 AM EDT | Coastal Flood Advisory | GYX | Rockingham | 24 hr |
| Jul 28, 2:36 AM EDT | Beach Hazards Statement | GYX | Rockingham | 12 hr |
| Jul 31, 4:15 PM EDT | Special Weather Statement | GYX | Coos | 30 min |
| Jul 31, 4:34 PM EDT | Special Weather Statement | GYX | Coos | 41 min |
| Jul 31, 5:10 PM EDT | Special Weather Statement | GYX | Carroll | 35 min |
| Jul 31, 5:28 PM EDT | Special Weather Statement | GYX | Carroll | 32 min |
| Aug 2, 1:30 PM EDT | Mesoscale Discussion | SPC | Cheshire, Hillsborough, Sullivan | 2 hr |
| Aug 2, 3:55 PM EDT | Special Weather Statement | GYX | Belknap | 35 min |
| Aug 2, 4:27 PM EDT | Special Weather Statement | BOX | Hillsborough | 48 min |
| Aug 2, 4:33 PM EDT | Special Weather Statement | GYX | Belknap | 27 min |
| Aug 2, 4:46 PM EDT | Special Weather Statement | GYX | Carroll | 29 min |
| Aug 2, 4:50 PM EDT | Special Weather Statement | GYX | Belknap | 25 min |
| Aug 2, 5:15 PM EDT | Severe Thunderstorm Warning | GYX | Merrimack | 60 min |
| Aug 2, 5:42 PM EDT | Flash Flood Warning | GYX | Merrimack | 4 hr |
| Aug 2, 6:22 PM EDT | Special Weather Statement | GYX | Belknap | 23 min |
| Aug 2, 6:45 PM EDT | Severe Thunderstorm Warning | GYX | Carroll | 60 min |
| Aug 2, 7:52 PM EDT | Areal Flood Advisory | GYX | Carroll | 113 min |
| Aug 2, 8:03 PM EDT | Areal Flood Advisory | GYX | Merrimack | 117 min |
| Aug 2, 10:25 PM EDT | Areal Flood Advisory | GYX | Coos | 3 hr |
| Aug 3, 12:56 PM EDT | Special Weather Statement | GYX | Carroll | 34 min |
| Aug 3, 1:30 PM EDT | Areal Flood Advisory | GYX | Carroll, Coos | 3 hr |
| Aug 3, 1:33 PM EDT | Special Weather Statement | GYX | Carroll | 27 min |
| Aug 3, 1:52 PM EDT | Special Weather Statement | GYX | Coos | 23 min |
| Aug 3, 5:29 PM EDT | Special Weather Statement | GYX | Carroll | 31 min |
| Aug 3, 5:40 PM EDT | Areal Flood Advisory | GYX | Carroll, Coos, Grafton | 3 hr |
| Aug 4, 3:51 PM EDT | Special Weather Statement | GYX | Hillsborough | 24 min |
| Aug 4, 4:14 PM EDT | Special Weather Statement | GYX | Rockingham | 31 min |
| Aug 4, 5:05 PM EDT | Special Weather Statement | GYX | Belknap, Merrimack, Rockingham, Strafford | 25 min |
| Aug 4, 5:43 PM EDT | Special Weather Statement | GYX | Belknap, Strafford | 32 min |
| Aug 4, 6:05 PM EDT | Severe Thunderstorm Warning | GYX | Carroll | 55 min |
| Aug 5, 11:36 AM EDT | Mesoscale Discussion | SPC | Belknap, Carroll, Cheshire, Coos, Grafton, Hillsborough and 2 more | 114 min |
| Aug 5, 3:16 PM EDT | Special Weather Statement | GYX | Grafton, Sullivan | 59 min |
| Aug 5, 4:06 PM EDT | Special Weather Statement | GYX | Cheshire | 54 min |
| Aug 5, 4:09 PM EDT | Special Weather Statement | GYX | Grafton | 66 min |
| Aug 5, 4:23 PM EDT | Special Weather Statement | GYX | Coos | 52 min |
| Aug 5, 4:48 PM EDT | Severe Thunderstorm Warning | GYX | Cheshire, Hillsborough, Merrimack, Sullivan | 23 min |
| Aug 5, 5:14 PM EDT | Special Weather Statement | GYX | Carroll | 46 min |
| Aug 5, 6:01 PM EDT | Special Weather Statement | GYX | Belknap | 59 min |
| Aug 5, 6:35 PM EDT | Special Weather Statement | GYX | Carroll | 40 min |
| Aug 5, 6:37 PM EDT | Special Weather Statement | GYX | Rockingham | 53 min |
| Aug 5, 7:14 PM EDT | Areal Flood Advisory | GYX | Hillsborough, Merrimack | 61 min |
| Aug 8, 4:08 PM EDT | Special Weather Statement | GYX | Merrimack | 37 min |
| Aug 8, 4:35 PM EDT | Special Weather Statement | GYX | Merrimack, Strafford | 25 min |
| Aug 9, 6:31 AM EDT | Dense Fog Advisory | GYX | Belknap, Carroll, Cheshire, Grafton, Hillsborough, Merrimack and 1 more | 107 min |
| Aug 9, 5:01 PM EDT | Special Weather Statement | GYX | Sullivan | 29 min |
| Aug 11, 1:42 PM EDT | Special Weather Statement | GYX | Coos | 33 min |
| Aug 11, 2:19 PM EDT | Special Weather Statement | GYX | Coos | 41 min |
| Aug 12, 6:32 PM EDT | Mesoscale Discussion | SPC | Cheshire, Sullivan | 118 min |
| Aug 12, 7:31 PM EDT | Special Weather Statement | GYX | Coos | 29 min |
| Aug 12, 8:18 PM EDT | Special Weather Statement | GYX | Coos | 27 min |
| Aug 12, 8:36 PM EDT | Special Weather Statement | GYX | Coos | 24 min |
| Aug 12, 8:55 PM EDT | Special Weather Statement | GYX | Coos | 35 min |
| Aug 12, 9:26 PM EDT | Special Weather Statement | GYX | Cheshire | 34 min |
| Aug 12, 9:30 PM EDT | Special Weather Statement | GYX | Coos | 30 min |
| Aug 15, 6:13 PM EDT | Special Weather Statement | GYX | Coos | 47 min |
| Aug 15, 9:17 PM EDT | Special Weather Statement | GYX | Grafton | 28 min |
| Aug 18, 4:09 PM EDT | Areal Flood Advisory | GYX | Belknap, Carroll, Cheshire, Hillsborough, Merrimack, Rockingham and 2 more | 3 hr |
| Aug 18, 6:59 PM EDT | Areal Flood Advisory | GYX | Belknap, Carroll, Cheshire, Hillsborough, Merrimack, Rockingham and 2 more | 3 hr |
| Aug 22, 2:44 PM EDT | Mesoscale Discussion | SPC | Grafton | 2 hr |
| Aug 22, 2:47 PM EDT | Coastal Flood Statement | GYX | Rockingham | 10 hr |
| Aug 22, 3:55 PM EDT | Severe Thunderstorm Watch | SPC | Belknap, Carroll, Cheshire, Coos, Grafton, Hillsborough and 4 more | 8 hr |
| Aug 22, 5:49 PM EDT | Mesoscale Discussion | SPC | Cheshire, Coos, Grafton, Sullivan | 116 min |
| Aug 22, 7:03 PM EDT | Severe Thunderstorm Warning | GYX | Coos, Grafton | 57 min |
| Aug 22, 7:58 PM EDT | Severe Thunderstorm Warning | GYX | Carroll, Coos, Grafton | 47 min |
| Aug 22, 8:04 PM EDT | Mesoscale Discussion | SPC | Belknap, Carroll, Cheshire, Coos, Grafton, Hillsborough and 2 more | 86 min |
| Aug 22, 8:44 PM EDT | Special Weather Statement | GYX | Grafton | 46 min |
| Aug 22, 9:20 PM EDT | Severe Thunderstorm Warning | GYX | Cheshire, Grafton, Merrimack, Sullivan | 55 min |
| Aug 22, 9:28 PM EDT | Special Weather Statement | GYX | Coos | 47 min |
| Aug 22, 9:52 PM EDT | Severe Thunderstorm Warning | GYX | Belknap, Carroll, Grafton, Merrimack, Sullivan | 53 min |
| Aug 22, 10:08 PM EDT | Severe Thunderstorm Warning | GYX | Cheshire, Hillsborough, Merrimack, Sullivan | 67 min |
| Aug 22, 10:25 PM EDT | Severe Thunderstorm Warning | GYX | Belknap, Carroll, Merrimack, Strafford | 51 min |
| Aug 22, 10:53 PM EDT | Mesoscale Discussion | SPC | Belknap, Carroll, Cheshire, Hillsborough, Merrimack, Rockingham and 1 more | 97 min |
| Aug 22, 11:05 PM EDT | Areal Flood Advisory | GYX | Cheshire | 55 min |
| Sep 1, 3:07 PM EDT | Frost Advisory | GYX | Carroll, Coos, Grafton | 15 hr |
| Sep 5, 3:31 PM EDT | Special Weather Statement | GYX | Merrimack | 29 min |
| Sep 5, 3:46 PM EDT | Special Weather Statement | GYX | Sullivan | 29 min |
| Sep 5, 3:57 PM EDT | Severe Thunderstorm Warning | GYX | Grafton, Sullivan | 48 min |
| Sep 5, 4:16 PM EDT | Special Weather Statement | GYX | Cheshire | 29 min |
| Sep 5, 4:25 PM EDT | Severe Thunderstorm Warning | GYX | Cheshire | 50 min |
| Sep 5, 4:27 PM EDT | Severe Thunderstorm Warning | GYX | Cheshire, Merrimack, Sullivan | 48 min |
| Sep 5, 4:30 PM EDT | Mesoscale Discussion | SPC | Belknap, Carroll, Cheshire, Grafton, Hillsborough, Merrimack and 2 more | 2 hr |
| Sep 5, 4:44 PM EDT | Special Weather Statement | GYX | Carroll | 31 min |
| Sep 5, 5:05 PM EDT | Severe Thunderstorm Warning | GYX | Cheshire, Hillsborough, Merrimack, Sullivan | 40 min |
| Sep 5, 5:52 PM EDT | Special Weather Statement | GYX | Merrimack | 23 min |
| Sep 5, 6:08 PM EDT | Severe Thunderstorm Warning | GYX | Belknap, Merrimack, Rockingham, Strafford | 52 min |
| Sep 5, 6:18 PM EDT | Special Weather Statement | GYX | Cheshire | 27 min |
| Sep 5, 6:20 PM EDT | Areal Flood Advisory | GYX | Carroll | 115 min |
| Sep 5, 6:56 PM EDT | Special Weather Statement | GYX | Strafford | 34 min |
| Sep 5, 7:26 PM EDT | Special Weather Statement | BTV | Sullivan | 19 min |
| Sep 5, 7:49 PM EDT | Special Weather Statement | GYX | Cheshire | 26 min |
| Sep 6, 3:29 AM EDT | Flash Flood Watch | GYX | Belknap, Carroll, Cheshire, Grafton, Hillsborough, Merrimack and 3 more | 24 hr |
| Sep 6, 9:25 AM EDT | Special Weather Statement | GYX | Rockingham | 35 min |
| Sep 14, 7:11 PM EDT | Special Weather Statement | GYX | Carroll | 49 min |
| Sep 15, 5:41 AM EDT | Special Weather Statement | GYX | Belknap, Merrimack | 34 min |
| Sep 15, 2:14 PM EDT | Areal Flood Advisory | GYX | Rockingham, Strafford | 2 hr |
| Sep 15, 5:27 PM EDT | Areal Flood Advisory | GYX | Rockingham | 2 hr |
| Sep 15, 11:01 PM EDT | Dense Fog Advisory | GYX | Carroll, Rockingham, Strafford | 10 hr |
| Sep 16, 9:39 PM EDT | Dense Fog Advisory | GYX | Rockingham, Strafford | 13 hr |
| Sep 17, 6:31 PM EDT | Dense Fog Advisory | GYX | Belknap, Carroll, Hillsborough, Merrimack, Rockingham, Strafford | 14 hr |
| Sep 18, 3:05 PM EDT | Coastal Flood Statement | GYX | Rockingham | 9 hr |
| Sep 18, 3:05 PM EDT | High Surf Advisory | GYX | Rockingham | 5 days |
| Sep 18, 5:31 PM EDT | Dense Fog Advisory | GYX | Rockingham, Strafford | 10 hr |
| Sep 19, 2:55 PM EDT | Coastal Flood Statement | GYX | Rockingham | 10 hr |
| Sep 25, 7:08 AM EDT | Dense Fog Advisory | GYX | Cheshire, Coos, Grafton, Sullivan | 112 min |
| Sep 25, 8:33 PM EDT | Dense Fog Advisory | GYX | Cheshire, Coos, Grafton, Hillsborough, Merrimack, Rockingham and 2 more | 12 hr |
| Sep 27, 4:05 AM EDT | Dense Fog Advisory | GYX | Belknap, Carroll, Hillsborough, Merrimack, Rockingham, Strafford | 6 hr |
| Sep 30, 3:19 AM EDT | Frost Advisory | GYX | Belknap, Carroll, Cheshire, Grafton, Hillsborough, Merrimack and 2 more | 29 hr |
| Sep 30, 3:19 AM EDT | Freeze Warning | GYX | Coos | 29 hr |
| Oct 11, 2:28 PM EDT | Frost Advisory | GYX | Carroll, Grafton | 18 hr |
| Oct 12, 2:37 PM EDT | Frost Advisory | GYX | Belknap, Carroll, Cheshire, Grafton, Hillsborough, Merrimack and 3 more | 16 hr |
| Oct 12, 2:37 PM EDT | Freeze Warning | GYX | Carroll, Grafton | 16 hr |
| Oct 15, 3:05 AM EDT | Dense Fog Advisory | GYX | Hillsborough, Rockingham, Strafford | 7 hr |
| Oct 23, 10:49 PM EDT | Dense Fog Advisory | GYX | Rockingham, Strafford | 6 hr |
| Oct 24, 10:04 PM EDT | Areal Flood Advisory | GYX | Cheshire, Hillsborough, Rockingham, Sullivan | 6 hr |
| Oct 24, 10:34 PM EDT | Flash Flood Warning | GYX | Cheshire | 3 hr |
| Oct 24, 11:43 PM EDT | Areal Flood Advisory | GYX | Merrimack, Sullivan | 4 hr |
| Oct 25, 12:08 AM EDT | Areal Flood Advisory | GYX | Belknap, Carroll, Grafton | 3 hr |
| Oct 25, 12:14 AM EDT | Special Weather Statement | GYX | Belknap, Carroll | 31 min |
| Oct 25, 12:33 AM EDT | Severe Thunderstorm Warning | GYX | Belknap, Carroll, Coos, Grafton | 57 min |
| Oct 25, 12:56 AM EDT | Areal Flood Advisory | GYX | Belknap, Carroll, Coos, Merrimack, Rockingham, Strafford | 6 hr |
| Oct 25, 1:21 AM EDT | Flash Flood Warning | GYX | Carroll, Coos, Grafton | 6 hr |
| Oct 26, 8:19 PM EDT | Areal Flood Advisory | GYX | Coos | 116 min |
| Oct 26, 8:44 PM EDT | Areal Flood Warning | GYX | Coos | 3 hr |
| Oct 26, 10:04 PM EDT | Areal Flood Advisory | GYX | Carroll, Coos | 3 hr |
| Oct 26, 10:26 PM EDT | Areal Flood Warning | GYX | Carroll, Coos | 2 hr |
| Oct 28, 3:55 AM EDT | Flash Flood Watch | GYX | Belknap, Carroll, Cheshire, Coos, Grafton, Hillsborough and 4 more | 63 hr |
| Oct 28, 4:05 AM EDT | High Wind Watch | GYX | Rockingham | 24 hr |
| Oct 29, 3:59 AM EDT | High Wind Warning | GYX | Belknap, Carroll, Cheshire, Coos, Grafton, Hillsborough and 4 more | 30 hr |
| Oct 29, 3:59 AM EDT | Wind Advisory | GYX | Belknap, Carroll, Cheshire, Coos, Grafton, Hillsborough and 4 more | 38 hr |
| Oct 29, 3:07 PM EDT | River Flood Warning | GYX | Grafton | 35 hr |
| Oct 29, 3:07 PM EDT | River Flood Warning | GYX | Carroll | 35 hr |
| Oct 29, 4:27 PM EDT | Coastal Flood Statement | GYX | Rockingham | 18 hr |
| Oct 30, 1:19 AM EDT | Areal Flood Warning | GYX | Belknap, Carroll, Cheshire, Coos, Grafton, Hillsborough and 4 more | 6 hr |
| Oct 30, 2:05 AM EDT | River Flood Warning | GYX | Grafton | 36 hr |
| Oct 30, 2:55 AM EDT | Flash Flood Warning | GYX | Belknap, Carroll, Coos, Grafton | 6 hr |
| Oct 30, 4:04 AM EDT | Flash Flood Warning | GYX | Belknap, Carroll, Coos, Grafton | 6 hr |
| Oct 30, 4:09 AM EDT | River Flood Warning | GYX | Hillsborough | 19 hr |
| Oct 30, 4:21 AM EDT | Flash Flood Warning | GYX | Carroll, Coos | 6 hr |
| Oct 30, 5:31 AM EDT | River Flood Warning | GYX | Merrimack | 60 hr |
| Oct 30, 5:54 AM EDT | River Flood Warning | GYX | Belknap, Grafton, Merrimack | 10 hr |
| Oct 30, 5:57 AM EDT | River Flood Warning | GYX | Cheshire, Hillsborough | 20 hr |
| Oct 30, 6:14 AM EDT | River Flood Warning | GYX | Grafton | 14 hr |
| Oct 30, 8:53 AM EDT | Areal Flood Warning | GYX | Belknap, Carroll, Coos, Grafton | 6 hr |
| Oct 30, 10:36 AM EDT | River Flood Warning | GYX | Coos | 11 hr |
| Oct 30, 11:48 AM EDT | River Flood Warning | GYX | Grafton | 7 hr |
| Oct 30, 2:00 PM EDT | River Flood Warning | GYX | Hillsborough | 10 hr |
| Oct 30, 2:48 PM EDT | River Flood Warning | GYX | Merrimack | 29 hr |
| Oct 30, 6:47 PM EDT | Flash Flood Watch | GYX | Coos | 15 hr |
| Nov 5, 9:34 AM EST | Coastal Flood Statement | GYX | Rockingham | 86 min |
| Nov 6, 8:09 AM EST | Coastal Flood Statement | GYX | Rockingham | 4 hr |
| Nov 8, 2:00 AM EST | Coastal Flood Statement | GYX | Rockingham | 13 hr |
| Nov 9, 3:25 PM EST | Wind Advisory | GYX | Belknap, Carroll, Cheshire, Coos, Grafton, Hillsborough and 4 more | 29 hr |
| Nov 10, 2:11 AM EST | Special Weather Statement | GYX | Coos | 64 min |
| Nov 10, 2:24 AM EST | Special Weather Statement | GYX | Cheshire, Grafton, Sullivan | 66 min |
| Nov 10, 2:47 AM EST | Special Weather Statement | GYX | Carroll, Coos, Grafton | 118 min |
| Nov 18, 2:48 PM EST | Wind Advisory | GYX | Belknap, Carroll, Cheshire, Hillsborough, Merrimack, Rockingham and 2 more | 30 hr |
| Nov 18, 2:49 PM EST | Winter Weather Advisory | GYX | Carroll, Coos | 13 hr |
| Dec 5, 3:35 AM EST | Coastal Flood Advisory | GYX | Rockingham | 9 hr |
| Dec 5, 3:41 AM EST | Wind Advisory | GYX | Rockingham | 25 hr |
| Dec 5, 4:11 PM EST | Coastal Flood Advisory | GYX | Rockingham | 10 hr |
| Dec 6, 10:52 AM EST | Coastal Flood Statement | GYX | Rockingham | 3 hr |
| Dec 8, 3:02 PM EST | Winter Storm Watch | GYX | Belknap, Carroll, Hillsborough, Merrimack, Rockingham, Strafford | 12 hr |
| Dec 9, 3:22 AM EST | Winter Weather Advisory | GYX | Belknap, Carroll, Cheshire, Coos, Grafton, Hillsborough and 4 more | 24 hr |
| Dec 10, 3:16 PM EST | Winter Storm Watch | GYX | Belknap, Carroll, Cheshire, Coos, Grafton, Hillsborough and 4 more | 24 hr |
| Dec 11, 3:32 PM EST | Winter Storm Warning | GYX | Belknap, Carroll, Coos, Grafton, Merrimack, Sullivan | 44 hr |
| Dec 11, 3:32 PM EST | Winter Weather Advisory | GYX | Belknap, Cheshire, Hillsborough, Merrimack, Rockingham, Strafford and 1 more | 32 hr |
| Dec 13, 3:29 AM EST | Wind Advisory | GYX | Belknap, Cheshire, Hillsborough, Merrimack, Rockingham, Strafford | 15 hr |
| Dec 16, 3:45 PM EST | Special Weather Statement | GYX | Carroll | 60 min |
| Dec 16, 4:37 PM EST | Special Weather Statement | GYX | Merrimack, Rockingham, Strafford | 68 min |
| Dec 16, 4:41 PM EST | Special Weather Statement | GYX | Carroll | 79 min |
| Dec 18, 3:04 PM EST | Winter Weather Advisory | GYX | Hillsborough, Rockingham, Strafford | 12 hr |
| Dec 19, 8:25 PM EST | Special Weather Statement | GYX | Carroll | 35 min |
| Dec 21, 3:45 PM EST | Winter Storm Watch | GYX | Cheshire, Hillsborough, Merrimack, Rockingham, Strafford, Sullivan | 8 hr |
| Dec 21, 3:45 PM EST | Winter Weather Advisory | GYX | Belknap, Carroll, Cheshire, Coos, Grafton, Hillsborough and 4 more | 53 hr |
| Dec 21, 11:29 PM EST | Winter Storm Warning | GYX | Belknap, Carroll, Cheshire, Coos, Grafton, Hillsborough and 4 more | 27 hr |
| Dec 23, 9:50 AM EST | Mesoscale Discussion | SPC | Belknap, Carroll, Cheshire, Grafton, Hillsborough, Merrimack and 3 more | 4 hr |
| Dec 23, 1:49 PM EST | Mesoscale Discussion | SPC | Belknap, Carroll, Coos, Grafton, Merrimack, Strafford | 5 hr |
| Dec 23, 2:59 PM EST | Winter Storm Watch | GYX | Belknap, Carroll, Cheshire, Coos, Grafton, Hillsborough and 4 more | 12 hr |
| Dec 24, 2:51 AM EST | Winter Storm Warning | GYX | Belknap, Carroll, Cheshire, Coos, Grafton, Hillsborough and 4 more | 36 hr |
| Dec 25, 4:36 AM EST | Mesoscale Discussion | SPC | Belknap, Cheshire, Hillsborough, Merrimack, Rockingham, Strafford and 1 more | 5 hr |
| Dec 25, 10:07 AM EST | Blizzard Warning | GYX | Rockingham | 4 hr |
| Dec 26, 2:32 AM EST | Wind Chill Advisory | GYX | Coos | 40 hr |
| Dec 27, 3:55 AM EST | Wind Chill Advisory | GYX | Belknap, Carroll, Cheshire, Coos, Grafton, Hillsborough and 4 more | 57 hr |
| Dec 27, 2:56 PM EST | Wind Chill Warning | GYX | Carroll, Coos, Grafton | 40 hr |
| Dec 30, 3:22 AM EST | Wind Chill Advisory | GYX | Belknap, Carroll, Cheshire, Coos, Grafton, Merrimack and 2 more | 24 hr |
| Dec 30, 3:31 PM EST | Wind Chill Warning | GYX | Carroll, Coos, Grafton | 63 hr |
By product
Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.
By county
Every county with at least one alert. A county page lists each alert that covered it.
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20162018
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.