Weather alerts in New Hampshire, 2010
530 weather alerts in 2010, 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 2010. Tap one for its archive.
- Alerts
- 530
- Warnings
- 184
- Watches
- 57
- Advisories
- 122
- Busiest month
- March80 alerts
- Busiest day
- March 30, 201022 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
0 of 1 tornado warnings covering New Hampshire in 2010 had a tornado report inside them; 0 of 2 tornado reports fell inside a warning.
New Hampshire, 2010
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 1 | 0 | 100% | 2 | 0% | |
| Severe thunderstorm warnings | 61 | 44 | 28% | 103 | 86% | 25 min |
| Flash flood warnings | 1 | 1 | 0% | 1 | 100% | 180 min |
Each office's whole area, 2010
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Gray, ME: tornado warnings | 6 | 3 | 50% | 10 | 60% | 3 min |
| NWS Gray, ME: severe thunderstorm warnings | 84 | 56 | 33% | 165 | 82% | 26 min |
| NWS Gray, ME: flash flood warnings | 4 | 2 | 50% | 3 | 67% | 126 min |
| NWS Boston/Norton, MA: tornado warnings | 6 | 1 | 83% | 1 | 100% | 5 min |
| NWS Boston/Norton, MA: severe thunderstorm warnings | 137 | 99 | 28% | 426 | 77% | 22 min |
| NWS Boston/Norton, MA: flash flood warnings | 2 | 2 | 0% | 19 | 68% | 29 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 |
|---|---|---|---|---|
| Dec 31, 8:23 PM EST | Coastal Flood Statement | GYX | Rockingham | 7 hr |
| Jan 1, 3:03 AM EST | Winter Storm Watch | GYX | Carroll, Coos, Grafton | 24 hr |
| Jan 1, 3:03 AM EST | Winter Weather Advisory | GYX | Belknap, Carroll, Grafton, Merrimack, Rockingham, Strafford and 1 more | 24 hr |
| Jan 1, 3:14 AM EST | Coastal Flood Watch | GYX | Rockingham | 52 hr |
| Jan 1, 3:14 AM EST | Coastal Flood Advisory | GYX | Rockingham | 4 hr |
| Jan 1, 7:11 AM EST | Coastal Flood Warning | GYX | Rockingham | 6 hr |
| Jan 1, 3:09 PM EST | Coastal Flood Warning | GYX | Rockingham | 23 hr |
| Jan 1, 4:35 PM EST | Winter Weather Advisory | BOX | Cheshire, Hillsborough | 44 hr |
| Jan 2, 3:27 AM EST | Winter Storm Warning | GYX | Carroll, Coos, Grafton | 31 hr |
| Jan 2, 3:27 AM EST | Winter Weather Advisory | GYX | Belknap, Carroll, Grafton, Merrimack, Rockingham, Strafford and 1 more | 31 hr |
| Jan 2, 3:34 AM EST | Wind Advisory | GYX | Belknap, Carroll, Grafton, Merrimack, Rockingham, Strafford and 1 more | 31 hr |
| Jan 2, 4:19 AM EST | Wind Advisory | BOX | Cheshire, Hillsborough | 32 hr |
| Jan 2, 6:39 PM EST | Mesoscale Discussion | SPC | Coos | 5 hr |
| Jan 2, 10:56 PM EST | Coastal Flood Advisory | GYX | Rockingham | 3 hr |
| Jan 3, 7:26 AM EST | Coastal Flood Warning | GYX | Rockingham | 7 hr |
| Jan 16, 4:39 AM EST | Winter Storm Watch | BOX | Cheshire, Hillsborough | 36 hr |
| Jan 16, 2:51 PM EST | Winter Storm Watch | GYX | Belknap, Merrimack, Rockingham, Strafford, Sullivan | 12 hr |
| Jan 17, 2:51 AM EST | Winter Storm Warning | GYX | Belknap, Carroll, Merrimack, Rockingham, Strafford | 36 hr |
| Jan 17, 2:51 AM EST | Winter Weather Advisory | GYX | Belknap, Carroll, Grafton, Sullivan | 36 hr |
| Jan 17, 4:20 PM EST | Winter Storm Warning | BOX | Cheshire, Hillsborough | 18 hr |
| Jan 18, 9:22 AM EST | Coastal Flood Statement | GYX | Rockingham | 5 hr |
| Jan 18, 10:59 PM EST | Coastal Flood Statement | GYX | Rockingham | 4 hr |
| Jan 19, 11:32 AM EST | Winter Weather Advisory | GYX | Belknap, Carroll, Coos, Grafton, Merrimack, Rockingham and 2 more | 23 hr |
| Jan 19, 12:21 PM EST | Coastal Flood Statement | GYX | Rockingham | 13 hr |
| Jan 23, 4:22 PM EST | Flash Flood Watch | BOX | Cheshire, Hillsborough | 50 hr |
| Jan 24, 3:34 AM EST | Flood Watch | GYX | Belknap, Carroll, Coos, Grafton, Merrimack, Rockingham and 2 more | 56 hr |
| Jan 24, 3:38 AM EST | Winter Weather Advisory | GYX | Belknap, Carroll, Coos, Grafton, Merrimack, Rockingham and 2 more | 30 hr |
| Jan 24, 4:01 PM EST | Freezing Rain Advisory | BOX | Cheshire, Hillsborough | 16 hr |
| Jan 24, 9:30 PM EST | Coastal Flood Statement | GYX | Rockingham | 25 hr |
| Jan 25, 3:11 AM EST | Wind Advisory | GYX | Coos, Grafton, Rockingham, Strafford | 19 hr |
| Jan 25, 4:08 AM EST | Wind Advisory | BOX | Cheshire, Hillsborough | 14 hr |
| Jan 25, 12:36 PM EST | Areal Flood Advisory | BOX | Cheshire | 4 hr |
| Jan 25, 2:47 PM EST | Areal Flood Advisory | BOX | Hillsborough | 4 hr |
| Jan 25, 3:14 PM EST | Areal Flood Advisory | GYX | Belknap, Carroll, Grafton, Merrimack, Rockingham, Strafford and 1 more | 6 hr |
| Jan 25, 3:59 PM EST | Areal Flood Advisory | BOX | Cheshire | 3 hr |
| Jan 25, 7:58 PM EST | River Flood Warning | GYX | Grafton | 8 hr |
| Jan 25, 9:57 PM EST | River Flood Warning | GYX | Carroll | 13 hr |
| Jan 25, 10:14 PM EST | Areal Flood Warning | GYX | Grafton | 7 hr |
| Jan 26, 12:39 AM EST | River Flood Warning | GYX | Coos | 6 hr |
| Jan 26, 1:26 AM EST | Areal Flood Warning | GYX | Sullivan | 8 hr |
| Jan 26, 12:50 PM EST | River Flood Warning | GYX | Sullivan | 6 hr |
| Jan 26, 7:07 PM EST | River Flood Warning | GYX | Sullivan | 20 hr |
| Jan 28, 1:45 PM EST | Wind Advisory | BOX | Cheshire, Hillsborough | 29 hr |
| Jan 28, 3:26 PM EST | Wind Advisory | GYX | Belknap, Carroll, Coos, Grafton, Merrimack, Rockingham and 2 more | 23 hr |
| Jan 29, 2:41 PM EST | Wind Chill Warning | GYX | Carroll, Coos, Grafton | 16 hr |
| Jan 29, 2:41 PM EST | Wind Chill Advisory | GYX | Belknap, Carroll, Grafton, Merrimack, Rockingham, Strafford and 1 more | 16 hr |
| Jan 31, 10:25 AM EST | Coastal Flood Statement | GYX | Rockingham | 20 min |
| Jan 31, 10:45 AM EST | Coastal Flood Warning | GYX | Rockingham | 2 hr |
| Feb 1, 3:57 AM EST | Coastal Flood Statement | GYX | Rockingham | 10 hr |
| Feb 8, 3:28 PM EST | Winter Storm Watch | BOX | Cheshire, Hillsborough | 37 hr |
| Feb 9, 2:48 PM EST | Winter Storm Watch | GYX | Rockingham | 12 hr |
| Feb 15, 3:02 AM EST | Winter Storm Watch | GYX | Belknap, Carroll, Grafton, Merrimack, Rockingham, Strafford and 1 more | 24 hr |
| Feb 15, 4:31 AM EST | Winter Storm Watch | BOX | Cheshire, Hillsborough | 24 hr |
| Feb 15, 3:58 PM EST | Winter Weather Advisory | BOX | Cheshire, Hillsborough | 33 hr |
| Feb 16, 3:10 AM EST | Winter Storm Warning | GYX | Merrimack, Rockingham, Strafford | 19 hr |
| Feb 16, 3:10 AM EST | Winter Weather Advisory | GYX | Belknap, Carroll, Grafton, Sullivan | 19 hr |
| Feb 16, 3:01 PM EST | Mesoscale Discussion | SPC | Belknap, Hillsborough, Merrimack, Rockingham, Strafford | 3 hr |
| Feb 16, 5:49 PM EST | Winter Storm Warning | BOX | Hillsborough | 6 hr |
| Feb 18, 9:01 PM EST | Wind Advisory | BOX | Cheshire, Hillsborough | 8 hr |
| Feb 22, 3:08 PM EST | Winter Storm Watch | BOX | Cheshire, Hillsborough | 24 hr |
| Feb 23, 2:59 AM EST | Winter Storm Watch | GYX | Coos, Grafton, Sullivan | 13 hr |
| Feb 23, 4:13 AM EST | Winter Storm Warning | BOX | Cheshire, Hillsborough | 35 hr |
| Feb 23, 2:03 PM EST | Mesoscale Discussion | SPC | Cheshire | 4 hr |
| Feb 23, 3:23 PM EST | Coastal Flood Watch | GYX | Rockingham | 49 hr |
| Feb 23, 3:35 PM EST | Flood Watch | GYX | Belknap, Carroll, Merrimack, Rockingham, Strafford | 65 hr |
| Feb 23, 3:58 PM EST | Winter Storm Warning | GYX | Belknap, Carroll, Coos, Grafton, Merrimack, Sullivan | 71 hr |
| Feb 23, 3:58 PM EST | Winter Weather Advisory | GYX | Rockingham, Strafford | 41 hr |
| Feb 24, 11:11 AM EST | High Wind Watch | GYX | Rockingham, Strafford | 4 hr |
| Feb 24, 11:44 AM EST | Mesoscale Discussion | SPC | Carroll, Coos, Grafton | 4 hr |
| Feb 24, 3:21 PM EST | Coastal Flood Advisory | GYX | Rockingham | 19 hr |
| Feb 24, 3:32 PM EST | Flood Watch | BOX | Cheshire, Hillsborough | 36 hr |
| Feb 24, 3:34 PM EST | High Wind Warning | GYX | Rockingham, Strafford | 36 hr |
| Feb 25, 3:02 AM EST | Wind Advisory | GYX | Belknap, Carroll, Coos, Grafton, Merrimack, Sullivan | 25 hr |
| Feb 25, 4:34 AM EST | Wind Advisory | BOX | Cheshire, Hillsborough | 21 hr |
| Feb 25, 2:01 PM EST | Areal Flood Warning | GYX | Rockingham, Strafford | 12 hr |
| Feb 25, 4:18 PM EST | Areal Flood Warning | GYX | Belknap, Carroll | 12 hr |
| Feb 25, 4:20 PM EST | Winter Weather Advisory | BOX | Cheshire | 48 hr |
| Feb 25, 4:28 PM EST | Coastal Flood Warning | GYX | Rockingham | 18 hr |
| Feb 25, 4:31 PM EST | Coastal Flood Watch | GYX | Rockingham | 18 hr |
| Feb 25, 4:56 PM EST | Areal Flood Warning | BOX | Hillsborough | 11 hr |
| Feb 25, 5:48 PM EST | Areal Flood Warning | GYX | Carroll | 12 hr |
| Feb 25, 6:17 PM EST | River Flood Warning | GYX | Rockingham, Strafford | 4 days |
| Feb 25, 7:22 PM EST | River Flood Warning | GYX | Merrimack | 68 hr |
| Feb 25, 8:18 PM EST | Areal Flood Warning | GYX | Merrimack | 10 hr |
| Feb 25, 9:43 PM EST | River Flood Warning | BOX | Hillsborough | 8 hr |
| Feb 25, 9:43 PM EST | River Flood Warning | BOX | Hillsborough | 3 days |
| Feb 25, 9:47 PM EST | Areal Flood Warning | GYX | Belknap, Carroll, Merrimack, Rockingham, Strafford | 18 hr |
| Feb 26, 1:16 AM EST | High Wind Warning | GYX | Rockingham, Strafford | 3 hr |
| Feb 26, 1:16 AM EST | Wind Advisory | GYX | Belknap, Carroll, Coos, Grafton, Merrimack, Sullivan | 3 hr |
| Feb 26, 4:26 AM EST | River Flood Warning | BOX | Hillsborough | 73 min |
| Feb 26, 4:26 AM EST | River Flood Warning | BOX | Rockingham | 55 hr |
| Feb 26, 10:31 AM EST | Coastal Flood Watch | GYX | Rockingham | 5 hr |
| Feb 26, 1:54 PM EST | River Flood Warning | BOX | Hillsborough | 10 hr |
| Feb 26, 2:25 PM EST | Areal Flood Warning | GYX | Merrimack, Rockingham, Strafford | 10 hr |
| Feb 26, 3:20 PM EST | Coastal Flood Advisory | GYX | Rockingham | 13 hr |
| Feb 27, 4:29 AM EST | Coastal Flood Warning | GYX | Rockingham | 7 hr |
| Feb 28, 3:07 AM EST | Coastal Flood Watch | GYX | Rockingham | 12 hr |
| Feb 28, 3:19 PM EST | Coastal Flood Warning | GYX | Rockingham | 23 hr |
| Feb 28, 3:50 PM EST | Winter Weather Advisory | GYX | Belknap, Carroll, Coos, Grafton, Rockingham, Strafford | 12 hr |
| Feb 28, 8:43 PM EST | Coastal Flood Advisory | GYX | Rockingham | 3 hr |
| Mar 2, 11:27 AM EST | Coastal Flood Statement | GYX | Rockingham | 93 min |
| Mar 2, 10:00 PM EST | Coastal Flood Statement | GYX | Rockingham | 3 hr |
| Mar 3, 12:30 PM EST | Coastal Flood Statement | GYX | Rockingham | 30 min |
| Mar 3, 2:25 PM EST | Coastal Flood Warning | GYX | Rockingham | 13 hr |
| Mar 4, 10:50 AM EST | Coastal Flood Statement | GYX | Rockingham | 5 hr |
| Mar 4, 2:48 PM EST | Coastal Flood Advisory | GYX | Rockingham | 13 hr |
| Mar 12, 4:29 PM EST | Flood Watch | BOX | Cheshire, Hillsborough | 69 hr |
| Mar 13, 3:22 AM EST | Winter Storm Watch | GYX | Grafton, Sullivan | 12 hr |
| Mar 13, 3:28 AM EST | High Wind Watch | GYX | Rockingham, Strafford | 12 hr |
| Mar 13, 3:35 AM EST | Flood Watch | GYX | Merrimack, Rockingham, Strafford | 34 hr |
| Mar 13, 4:02 AM EST | Wind Advisory | BOX | Cheshire, Hillsborough | 30 hr |
| Mar 13, 3:24 PM EST | Winter Weather Advisory | GYX | Grafton, Sullivan | 20 hr |
| Mar 13, 3:26 PM EST | Wind Advisory | GYX | Rockingham, Strafford | 30 hr |
| Mar 13, 5:59 PM EST | Winter Weather Advisory | BOX | Cheshire, Hillsborough | 8 hr |
| Mar 14, 1:25 AM EST | Areal Flood Advisory | GYX | Rockingham, Strafford | 6 hr |
| Mar 14, 4:13 AM EDT | Coastal Flood Advisory | GYX | Rockingham | 10 hr |
| Mar 14, 7:31 AM EDT | Areal Flood Advisory | GYX | Carroll, Rockingham, Strafford | 6 hr |
| Mar 14, 9:46 AM EDT | Areal Flood Advisory | BOX | Cheshire, Hillsborough | 8 hr |
| Mar 14, 11:30 AM EDT | Areal Flood Warning | GYX | Rockingham, Strafford | 20 hr |
| Mar 14, 12:51 PM EDT | River Flood Warning | GYX | Merrimack | 4 days |
| Mar 14, 12:51 PM EDT | River Flood Warning | GYX | Rockingham, Strafford | 5 days |
| Mar 14, 12:55 PM EDT | River Flood Warning | BOX | Cheshire, Hillsborough | 39 hr |
| Mar 14, 12:55 PM EDT | River Flood Warning | BOX | Hillsborough | 40 hr |
| Mar 14, 12:55 PM EDT | River Flood Warning | BOX | Hillsborough | 48 hr |
| Mar 14, 12:55 PM EDT | River Flood Warning | BOX | Hillsborough | 6 days |
| Mar 14, 12:55 PM EDT | River Flood Warning | BOX | Rockingham | 5 days |
| Mar 14, 4:17 PM EDT | Areal Flood Warning | BOX | Cheshire, Hillsborough | 6 hr |
| Mar 14, 5:50 PM EDT | Areal Flood Advisory | GYX | Belknap, Carroll, Merrimack | 5 hr |
| Mar 14, 9:30 PM EDT | River Flood Warning | GYX | Merrimack | 17 hr |
| Mar 14, 10:15 PM EDT | River Flood Warning | GYX | Merrimack | 54 hr |
| Mar 14, 10:38 PM EDT | Coastal Flood Advisory | GYX | Rockingham | 3 hr |
| Mar 14, 10:50 PM EDT | Areal Flood Warning | GYX | Belknap, Carroll, Merrimack | 20 hr |
| Mar 15, 7:45 AM EDT | Areal Flood Warning | GYX | Rockingham, Strafford | 10 hr |
| Mar 15, 9:31 AM EDT | Coastal Flood Advisory | GYX | Rockingham | 4 hr |
| Mar 15, 1:59 PM EDT | Areal Flood Warning | BOX | Cheshire, Hillsborough | 32 hr |
| Mar 15, 9:58 PM EDT | River Flood Warning | GYX | Merrimack | 12 hr |
| Mar 22, 3:04 AM EDT | Flood Watch | GYX | Belknap, Carroll, Grafton, Merrimack, Rockingham, Strafford and 1 more | 48 hr |
| Mar 22, 3:13 AM EDT | Flood Watch | BOX | Cheshire, Hillsborough | 47 hr |
| Mar 23, 9:34 AM EDT | River Flood Warning | GYX | Merrimack | 13 hr |
| Mar 23, 9:34 AM EDT | River Flood Warning | GYX | Merrimack | 34 hr |
| Mar 23, 9:34 AM EDT | River Flood Warning | GYX | Merrimack | 44 hr |
| Mar 23, 9:34 AM EDT | River Flood Warning | GYX | Rockingham, Strafford | 13 hr |
| Mar 23, 9:52 AM EDT | Areal Flood Warning | GYX | Rockingham, Strafford | 12 hr |
| Mar 23, 12:05 PM EDT | River Flood Warning | BOX | Hillsborough | 64 hr |
| Mar 23, 1:37 PM EDT | River Flood Warning | GYX | Carroll | 9 hr |
| Mar 23, 1:37 PM EDT | River Flood Warning | GYX | Coos | 9 hr |
| Mar 24, 6:26 AM EDT | River Flood Warning | GYX | Coos | 14 hr |
| Mar 27, 3:54 PM EDT | Flood Watch | BOX | Cheshire, Hillsborough | 3 days |
| Mar 28, 3:27 AM EDT | Flood Watch | GYX | Belknap, Carroll, Coos, Grafton, Merrimack, Rockingham and 2 more | 3 days |
| Mar 28, 3:53 PM EDT | Coastal Flood Statement | GYX | Rockingham | 18 hr |
| Mar 29, 10:24 AM EDT | Coastal Flood Advisory | GYX | Rockingham | 96 min |
| Mar 29, 3:16 PM EDT | Coastal Flood Statement | GYX | Rockingham | 7 hr |
| Mar 29, 3:23 PM EDT | River Flood Warning | BOX | Hillsborough | 6 days |
| Mar 29, 5:54 PM EDT | Areal Flood Warning | GYX | Rockingham, Strafford | 12 hr |
| Mar 29, 9:59 PM EDT | Coastal Flood Advisory | GYX | Rockingham | 5 hr |
| Mar 29, 10:28 PM EDT | River Flood Warning | BOX | Hillsborough | 46 hr |
| Mar 29, 10:28 PM EDT | River Flood Warning | BOX | Hillsborough | 49 hr |
| Mar 29, 10:28 PM EDT | River Flood Warning | BOX | Rockingham | 4 days |
| Mar 30, 3:32 AM EDT | Coastal Flood Statement | GYX | Rockingham | 11 hr |
| Mar 30, 4:47 AM EDT | River Flood Warning | GYX | Merrimack | 4 days |
| Mar 30, 5:38 AM EDT | Areal Flood Warning | GYX | Rockingham, Strafford | 12 hr |
| Mar 30, 12:01 PM EDT | River Flood Warning | BOX | Cheshire, Hillsborough | 19 hr |
| Mar 30, 1:22 PM EDT | Areal Flood Warning | BOX | Hillsborough | 22 hr |
| Mar 30, 2:12 PM EDT | River Flood Warning | GYX | Rockingham, Strafford | 4 days |
| Mar 30, 2:23 PM EDT | Areal Flood Warning | GYX | Rockingham, Strafford | 18 hr |
| Mar 30, 3:09 PM EDT | Coastal Flood Warning | GYX | Rockingham | 12 hr |
| Mar 30, 4:18 PM EDT | River Flood Warning | GYX | Grafton | 4 hr |
| Mar 30, 4:18 PM EDT | River Flood Warning | GYX | Grafton | 4 hr |
| Mar 30, 4:18 PM EDT | River Flood Warning | GYX | Carroll | 30 hr |
| Mar 30, 4:18 PM EDT | River Flood Warning | GYX | Grafton | 4 hr |
| Mar 30, 4:18 PM EDT | River Flood Warning | GYX | Merrimack | 54 hr |
| Mar 30, 4:18 PM EDT | River Flood Warning | GYX | Merrimack | 33 hr |
| Mar 30, 4:18 PM EDT | River Flood Warning | GYX | Sullivan | 4 hr |
| Mar 30, 4:18 PM EDT | River Flood Warning | GYX | Merrimack | 14 hr |
| Mar 30, 5:09 PM EDT | Areal Flood Warning | GYX | Belknap, Carroll, Grafton, Merrimack | 12 hr |
| Mar 30, 7:59 PM EDT | Areal Flood Advisory | BOX | Cheshire | 11 hr |
| Mar 30, 10:07 PM EDT | River Flood Warning | BOX | Hillsborough, Rockingham | 42 hr |
| Mar 31, 7:40 AM EDT | Areal Flood Warning | GYX | Rockingham, Strafford | 12 hr |
| Mar 31, 12:01 PM EDT | River Flood Warning | BOX | Hillsborough | 33 hr |
| Apr 3, 12:43 PM EDT | River Flood Warning | GYX | Merrimack | 4 hr |
| Apr 6, 11:34 PM EDT | Severe Thunderstorm Warning | GYX | Belknap, Merrimack, Rockingham, Strafford | 15 min |
| Apr 7, 1:10 AM EDT | Severe Thunderstorm Warning | GYX | Grafton | 35 min |
| Apr 7, 1:44 AM EDT | Severe Thunderstorm Warning | GYX | Carroll, Grafton | 29 min |
| Apr 14, 9:04 AM EDT | Red Flag Warning | GYX | 9 hr | |
| Apr 14, 10:17 AM EDT | Red Flag Warning | BOX | 8 hr | |
| Apr 17, 3:01 AM EDT | Winter Weather Advisory | GYX | Carroll, Coos | 12 hr |
| Apr 26, 3:33 AM EDT | Winter Storm Watch | GYX | Coos, Grafton | 24 hr |
| Apr 27, 3:33 AM EDT | Winter Storm Warning | GYX | Carroll, Coos, Grafton | 34 hr |
| Apr 27, 3:37 AM EDT | Coastal Flood Watch | GYX | Rockingham | 15 hr |
| Apr 27, 6:55 PM EDT | Coastal Flood Advisory | GYX | Rockingham | 3 hr |
| Apr 27, 9:46 PM EDT | Coastal Flood Warning | GYX | Rockingham | 3 hr |
| Apr 29, 1:43 PM EDT | Wind Advisory | BOX | Cheshire, Hillsborough | 5 hr |
| Apr 30, 7:38 AM EDT | Red Flag Warning | GYX | 10 hr | |
| Apr 30, 7:46 AM EDT | Red Flag Warning | BOX | 10 hr | |
| May 4, 1:24 PM EDT | Severe Thunderstorm Watch | SPC | Belknap, Carroll, Cheshire, Grafton, Hillsborough, Merrimack and 1 more | 6 hr |
| May 4, 4:38 PM EDT | Severe Thunderstorm Warning | BOX | Cheshire | 52 min |
| May 4, 4:44 PM EDT | Mesoscale Discussion | SPC | Belknap, Carroll, Cheshire, Hillsborough, Merrimack, Rockingham and 2 more | 2 hr |
| May 4, 4:48 PM EDT | Severe Thunderstorm Warning | BOX | Cheshire, Hillsborough | 57 min |
| May 4, 5:10 PM EDT | Severe Thunderstorm Warning | GYX | Merrimack, Rockingham | 65 min |
| May 4, 8:11 PM EDT | Severe Thunderstorm Warning | GYX | Carroll, Coos, Grafton | 34 min |
| May 6, 11:10 AM EDT | Mesoscale Discussion | SPC | Coos | 2 hr |
| May 6, 3:34 PM EDT | Fire Weather Watch | GYX | 18 hr | |
| May 6, 4:04 PM EDT | Fire Weather Watch | BOX | 18 hr | |
| May 8, 3:29 AM EDT | Wind Advisory | BOX | Cheshire, Hillsborough | 37 hr |
| May 10, 11:29 AM EDT | Frost Advisory | GYX | Rockingham | 20 hr |
| May 14, 8:45 PM EDT | Special Weather Statement | GYX | Belknap, Merrimack, Strafford | 30 min |
| May 14, 9:13 PM EDT | Special Weather Statement | GYX | Merrimack | 32 min |
| May 14, 9:42 PM EDT | Special Weather Statement | GYX | Strafford | 33 min |
| May 14, 10:14 PM EDT | Special Weather Statement | GYX | Rockingham | 16 min |
| May 26, 3:17 PM EDT | Mesoscale Discussion | SPC | Cheshire, Grafton, Hillsborough, Merrimack, Sullivan | 58 min |
| May 26, 7:24 PM EDT | Special Weather Statement | GYX | Grafton | 51 min |
| May 26, 7:25 PM EDT | Mesoscale Discussion | SPC | Cheshire, Hillsborough, Sullivan | 65 min |
| May 26, 7:45 PM EDT | Severe Thunderstorm Watch | SPC | Belknap, Cheshire, Grafton, Hillsborough, Merrimack, Sullivan | 6 hr |
| May 26, 8:38 PM EDT | Special Weather Statement | GYX | Sullivan | 52 min |
| May 26, 8:54 PM EDT | Severe Thunderstorm Warning | GYX | Grafton, Merrimack, Sullivan | 51 min |
| May 26, 9:14 PM EDT | Special Weather Statement | BOX | Hillsborough | 46 min |
| May 26, 9:31 PM EDT | Special Weather Statement | GYX | Belknap, Strafford | 44 min |
| May 26, 9:40 PM EDT | Severe Thunderstorm Warning | GYX | Sullivan | 35 min |
| May 26, 9:47 PM EDT | Mesoscale Discussion | SPC | Cheshire, Sullivan | 88 min |
| May 26, 9:48 PM EDT | Special Weather Statement | BOX | Cheshire | 42 min |
| May 26, 10:10 PM EDT | Special Weather Statement | GYX | Strafford | 50 min |
| May 26, 10:46 PM EDT | Severe Thunderstorm Warning | GYX | Belknap, Grafton, Merrimack, Sullivan | 44 min |
| May 26, 10:52 PM EDT | Special Weather Statement | BOX | Cheshire | 53 min |
| May 26, 11:03 PM EDT | Special Weather Statement | GYX | Merrimack | 42 min |
| May 26, 11:14 PM EDT | Severe Thunderstorm Warning | BOX | Cheshire | 36 min |
| May 26, 11:33 PM EDT | Special Weather Statement | BOX | Cheshire, Hillsborough | 57 min |
| May 27, 12:07 AM EDT | Mesoscale Discussion | SPC | Cheshire, Hillsborough | 53 min |
| May 29, 3:37 PM EDT | Fire Weather Watch | GYX | 17 hr | |
| May 29, 10:08 PM EDT | Special Weather Statement | BOX | Cheshire | 22 min |
| May 30, 8:24 AM EDT | Red Flag Warning | GYX | 13 hr | |
| Jun 3, 1:03 PM EDT | Severe Thunderstorm Watch | SPC | Cheshire, Hillsborough, Merrimack, Rockingham | 7 hr |
| Jun 3, 1:47 PM EDT | Special Weather Statement | GYX | Rockingham | 43 min |
| Jun 3, 1:55 PM EDT | Special Weather Statement | BOX | Hillsborough | 65 min |
| Jun 3, 1:56 PM EDT | Severe Thunderstorm Warning | GYX | Rockingham | 34 min |
| Jun 3, 2:55 PM EDT | Areal Flood Advisory | GYX | Rockingham, Strafford | 80 min |
| Jun 3, 3:26 PM EDT | Mesoscale Discussion | SPC | Hillsborough, Rockingham | 64 min |
| Jun 3, 3:39 PM EDT | Special Weather Statement | GYX | Rockingham | 36 min |
| Jun 3, 4:08 PM EDT | Special Weather Statement | BOX | Rockingham | 67 min |
| Jun 3, 4:15 PM EDT | Special Weather Statement | GYX | Rockingham | 45 min |
| Jun 3, 5:34 PM EDT | Special Weather Statement | GYX | Strafford | 41 min |
| Jun 5, 5:46 AM EDT | Special Weather Statement | GYX | Carroll | 44 min |
| Jun 5, 6:20 AM EDT | Special Weather Statement | GYX | Carroll | 40 min |
| Jun 5, 6:51 AM EDT | Special Weather Statement | GYX | Rockingham | 39 min |
| Jun 5, 12:17 PM EDT | Mesoscale Discussion | SPC | Belknap, Cheshire, Grafton, Hillsborough, Merrimack, Sullivan | 58 min |
| Jun 5, 1:42 PM EDT | Tornado Watch | SPC | Belknap, Carroll, Cheshire, Coos, Grafton, Hillsborough and 4 more | 6 hr |
| Jun 5, 1:44 PM EDT | Special Weather Statement | GYX | Coos | 31 min |
| Jun 5, 2:30 PM EDT | Special Weather Statement | GYX | Coos | 30 min |
| Jun 5, 2:35 PM EDT | Severe Thunderstorm Warning | BOX | Cheshire | 44 min |
| Jun 5, 3:08 PM EDT | Severe Thunderstorm Warning | GYX | Coos | 37 min |
| Jun 5, 3:45 PM EDT | Severe Thunderstorm Warning | GYX | Coos | 75 min |
| Jun 5, 4:18 PM EDT | Special Weather Statement | GYX | Grafton | 27 min |
| Jun 5, 4:28 PM EDT | Special Weather Statement | GYX | Coos | 32 min |
| Jun 5, 5:36 PM EDT | Special Weather Statement | GYX | Grafton | 24 min |
| Jun 5, 7:30 PM EDT | Mesoscale Discussion | SPC | Rockingham | 60 min |
| Jun 6, 11:08 AM EDT | Tornado Watch | SPC | Belknap, Carroll, Cheshire, Hillsborough, Merrimack, Rockingham and 2 more | 8 hr |
| Jun 6, 1:00 PM EDT | Severe Thunderstorm Warning | BOX | Cheshire, Hillsborough | 45 min |
| Jun 6, 1:11 PM EDT | Special Weather Statement | GYX | Merrimack | 34 min |
| Jun 6, 1:42 PM EDT | Severe Thunderstorm Warning | GYX | Belknap, Carroll, Merrimack, Rockingham, Strafford | 63 min |
| Jun 6, 1:48 PM EDT | Severe Thunderstorm Warning | BOX | Cheshire, Hillsborough | 57 min |
| Jun 6, 2:13 PM EDT | Areal Flood Advisory | GYX | Belknap, Carroll, Merrimack, Rockingham, Strafford | 2 hr |
| Jun 6, 2:38 PM EDT | Mesoscale Discussion | SPC | Cheshire, Hillsborough, Merrimack, Rockingham, Sullivan | 67 min |
| Jun 6, 2:43 PM EDT | Severe Thunderstorm Warning | GYX | Rockingham | 37 min |
| Jun 6, 2:52 PM EDT | Areal Flood Advisory | GYX | Rockingham, Strafford | 113 min |
| Jun 6, 3:49 PM EDT | Special Weather Statement | BOX | Cheshire | 41 min |
| Jun 6, 4:38 PM EDT | Special Weather Statement | BOX | Hillsborough | 52 min |
| Jun 8, 3:12 PM EDT | Frost Advisory | GYX | Coos, Grafton | 16 hr |
| Jun 15, 2:58 PM EDT | Frost Advisory | GYX | Coos | 17 hr |
| Jun 20, 1:48 AM EDT | Special Weather Statement | GYX | Grafton | 42 min |
| Jun 20, 10:57 AM EDT | Special Weather Statement | GYX | Coos | 63 min |
| Jun 20, 11:33 AM EDT | Mesoscale Discussion | SPC | Belknap, Carroll, Cheshire, Coos, Grafton, Hillsborough and 4 more | 117 min |
| Jun 20, 11:45 AM EDT | Special Weather Statement | GYX | Coos | 60 min |
| Jun 20, 12:08 PM EDT | Severe Thunderstorm Warning | GYX | Coos | 37 min |
| Jun 20, 12:36 PM EDT | Severe Thunderstorm Watch | SPC | Belknap, Carroll, Cheshire, Grafton, Hillsborough, Merrimack and 3 more | 5 hr |
| Jun 20, 12:45 PM EDT | Special Weather Statement | GYX | Carroll | 45 min |
| Jun 20, 3:04 PM EDT | Mesoscale Discussion | SPC | Belknap, Carroll, Hillsborough, Merrimack, Rockingham, Strafford | 86 min |
| Jun 24, 12:16 PM EDT | Mesoscale Discussion | SPC | Belknap, Carroll, Cheshire, Grafton, Hillsborough, Merrimack and 3 more | 89 min |
| Jun 24, 12:36 PM EDT | Special Weather Statement | GYX | Grafton | 24 min |
| Jun 24, 1:05 PM EDT | Severe Thunderstorm Watch | SPC | Belknap, Carroll, Cheshire, Coos, Grafton, Hillsborough and 4 more | 7 hr |
| Jun 24, 3:07 PM EDT | Mesoscale Discussion | SPC | Belknap, Carroll, Cheshire, Coos, Grafton, Hillsborough and 4 more | 53 min |
| Jun 24, 4:12 PM EDT | Severe Thunderstorm Warning | GYX | Grafton | 33 min |
| Jun 24, 5:28 PM EDT | Severe Thunderstorm Warning | GYX | Belknap, Grafton, Merrimack, Sullivan | 47 min |
| Jun 24, 6:17 PM EDT | Severe Thunderstorm Warning | GYX | Belknap, Carroll, Merrimack, Rockingham, Strafford | 28 min |
| Jun 24, 6:19 PM EDT | Severe Thunderstorm Warning | GYX | Carroll | 26 min |
| Jun 24, 6:39 PM EDT | Severe Thunderstorm Warning | GYX | Strafford | 36 min |
| Jun 27, 9:23 PM EDT | Special Weather Statement | GYX | Merrimack | 37 min |
| Jun 28, 12:49 PM EDT | Mesoscale Discussion | SPC | Cheshire, Hillsborough, Merrimack, Rockingham | 56 min |
| Jun 28, 1:45 PM EDT | Severe Thunderstorm Watch | SPC | Cheshire, Hillsborough, Rockingham | 6 hr |
| Jun 28, 3:38 PM EDT | Special Weather Statement | GYX | Grafton | 37 min |
| Jun 28, 3:53 PM EDT | Mesoscale Discussion | SPC | Cheshire, Hillsborough, Rockingham | 2 hr |
| Jul 5, 3:53 PM EDT | Heat Advisory | BOX | Hillsborough | 27 hr |
| Jul 6, 3:14 AM EDT | Heat Advisory | GYX | Grafton, Merrimack, Rockingham, Strafford, Sullivan | 16 hr |
| Jul 7, 3:10 AM EDT | Heat Advisory | GYX | Grafton, Sullivan | 16 hr |
| Jul 8, 3:02 PM EDT | Special Weather Statement | GYX | Coos | 43 min |
| Jul 8, 5:32 PM EDT | Areal Flood Advisory | GYX | Coos | 118 min |
| Jul 9, 12:54 PM EDT | Mesoscale Discussion | SPC | Coos | 2 hr |
| Jul 10, 11:14 AM EDT | Special Weather Statement | GYX | Rockingham, Strafford | 46 min |
| Jul 10, 11:58 AM EDT | Special Weather Statement | GYX | Rockingham | 62 min |
| Jul 10, 2:37 PM EDT | Areal Flood Advisory | BOX | Hillsborough | 3 hr |
| Jul 11, 4:24 PM EDT | Special Weather Statement | GYX | Carroll | 51 min |
| Jul 12, 1:09 PM EDT | Special Weather Statement | GYX | Coos | 51 min |
| Jul 12, 2:03 PM EDT | Severe Thunderstorm Warning | GYX | Rockingham | 57 min |
| Jul 12, 3:07 PM EDT | Severe Thunderstorm Warning | GYX | Strafford | 43 min |
| Jul 12, 10:19 PM EDT | Coastal Flood Statement | GYX | Rockingham | 4 hr |
| Jul 14, 1:25 AM EDT | Areal Flood Advisory | BOX | Cheshire | 95 min |
| Jul 16, 12:25 PM EDT | Special Weather Statement | GYX | Coos | 65 min |
| Jul 16, 12:32 PM EDT | Special Weather Statement | GYX | Sullivan | 43 min |
| Jul 16, 1:23 PM EDT | Mesoscale Discussion | SPC | Belknap, Carroll, Cheshire, Coos, Grafton, Hillsborough and 2 more | 97 min |
| Jul 16, 2:14 PM EDT | Special Weather Statement | GYX | Belknap, Carroll | 61 min |
| Jul 16, 5:27 PM EDT | Special Weather Statement | BOX | Cheshire | 33 min |
| Jul 16, 5:58 PM EDT | Special Weather Statement | BOX | Cheshire | 32 min |
| Jul 16, 6:30 PM EDT | Special Weather Statement | BOX | Hillsborough | 30 min |
| Jul 16, 6:41 PM EDT | Severe Thunderstorm Warning | BOX | Cheshire, Hillsborough | 51 min |
| Jul 16, 7:34 PM EDT | Special Weather Statement | GYX | Rockingham | 41 min |
| Jul 17, 6:43 PM EDT | Mesoscale Discussion | SPC | Belknap, Cheshire, Grafton, Hillsborough, Merrimack, Sullivan | 92 min |
| Jul 17, 9:57 PM EDT | Special Weather Statement | GYX | Grafton | 63 min |
| Jul 17, 10:48 PM EDT | Severe Thunderstorm Warning | GYX | Carroll, Coos, Grafton | 27 min |
| Jul 17, 11:15 PM EDT | Special Weather Statement | GYX | Carroll | 45 min |
| Jul 17, 11:25 PM EDT | Special Weather Statement | GYX | Grafton | 50 min |
| Jul 17, 11:51 PM EDT | Severe Thunderstorm Warning | BOX | Cheshire | 24 min |
| Jul 18, 12:17 AM EDT | Severe Thunderstorm Warning | BOX | Cheshire, Hillsborough | 28 min |
| Jul 19, 5:33 PM EDT | Special Weather Statement | GYX | Grafton | 42 min |
| Jul 19, 5:38 PM EDT | Special Weather Statement | GYX | Grafton | 52 min |
| Jul 19, 6:03 PM EDT | Severe Thunderstorm Warning | GYX | Grafton | 42 min |
| Jul 19, 6:17 PM EDT | Special Weather Statement | GYX | Sullivan | 43 min |
| Jul 19, 6:20 PM EDT | Severe Thunderstorm Warning | GYX | Merrimack, Sullivan | 40 min |
| Jul 19, 6:33 PM EDT | Special Weather Statement | BOX | Cheshire | 42 min |
| Jul 19, 6:41 PM EDT | Severe Thunderstorm Warning | GYX | Belknap, Carroll, Grafton | 34 min |
| Jul 19, 6:47 PM EDT | Severe Thunderstorm Warning | BOX | Cheshire, Hillsborough | 43 min |
| Jul 19, 6:52 PM EDT | Special Weather Statement | BOX | Hillsborough | 68 min |
| Jul 19, 6:54 PM EDT | Severe Thunderstorm Warning | GYX | Merrimack, Sullivan | 51 min |
| Jul 19, 6:56 PM EDT | Severe Thunderstorm Warning | BOX | Hillsborough | 49 min |
| Jul 19, 7:03 PM EDT | Special Weather Statement | BOX | Merrimack | 57 min |
| Jul 19, 7:11 PM EDT | Severe Thunderstorm Warning | GYX | Belknap, Carroll, Grafton | 34 min |
| Jul 19, 7:13 PM EDT | Severe Thunderstorm Warning | BOX | Hillsborough | 47 min |
| Jul 19, 7:28 PM EDT | Special Weather Statement | GYX | Carroll | 47 min |
| Jul 19, 7:30 PM EDT | Severe Thunderstorm Warning | GYX | Merrimack, Rockingham | 45 min |
| Jul 19, 7:39 PM EDT | Mesoscale Discussion | SPC | Belknap, Carroll, Hillsborough, Merrimack, Rockingham, Strafford | 96 min |
| Jul 19, 7:42 PM EDT | Severe Thunderstorm Warning | BOX | Hillsborough | 63 min |
| Jul 19, 7:42 PM EDT | Severe Thunderstorm Warning | GYX | Carroll, Strafford | 33 min |
| Jul 19, 8:04 PM EDT | Severe Thunderstorm Warning | GYX | Rockingham | 41 min |
| Jul 19, 8:15 PM EDT | Severe Thunderstorm Warning | GYX | Rockingham, Strafford | 45 min |
| Jul 21, 10:43 AM EDT | Mesoscale Discussion | SPC | Belknap, Carroll, Cheshire, Coos, Grafton, Hillsborough and 4 more | 2 hr |
| Jul 21, 11:27 AM EDT | Severe Thunderstorm Watch | SPC | Belknap, Carroll, Cheshire, Coos, Grafton, Hillsborough and 4 more | 9 hr |
| Jul 21, 1:59 PM EDT | Mesoscale Discussion | SPC | Belknap, Carroll, Cheshire, Coos, Grafton, Hillsborough and 4 more | 61 min |
| Jul 21, 3:41 PM EDT | Mesoscale Discussion | SPC | Belknap, Carroll, Cheshire, Coos, Grafton, Hillsborough and 4 more | 64 min |
| Jul 21, 4:35 PM EDT | Severe Thunderstorm Warning | GYX | Belknap, Carroll, Grafton | 85 min |
| Jul 21, 4:42 PM EDT | Severe Thunderstorm Warning | GYX | Carroll, Coos, Grafton | 63 min |
| Jul 21, 5:44 PM EDT | Severe Thunderstorm Warning | GYX | Belknap, Carroll, Grafton | 91 min |
| Jul 21, 5:46 PM EDT | Areal Flood Advisory | GYX | Grafton | 3 hr |
| Jul 21, 5:49 PM EDT | Severe Thunderstorm Warning | GYX | Carroll, Coos | 71 min |
| Jul 21, 6:11 PM EDT | Mesoscale Discussion | SPC | Belknap, Carroll, Grafton | 94 min |
| Jul 21, 6:19 PM EDT | Tornado Warning | GYX | Carroll | 56 min |
| Jul 21, 7:02 PM EDT | Severe Thunderstorm Warning | GYX | Belknap, Carroll, Merrimack, Rockingham, Strafford | 88 min |
| Jul 21, 7:28 PM EDT | Severe Thunderstorm Warning | GYX | Belknap, Grafton, Merrimack, Rockingham, Sullivan | 92 min |
| Jul 21, 7:35 PM EDT | Severe Thunderstorm Watch | SPC | Belknap, Cheshire, Hillsborough, Merrimack, Rockingham, Strafford and 1 more | 5 hr |
| Jul 21, 8:20 PM EDT | Special Weather Statement | BOX | Cheshire | 85 min |
| Jul 21, 8:52 PM EDT | Severe Thunderstorm Warning | BOX | Hillsborough | 38 min |
| Jul 21, 9:07 PM EDT | Severe Thunderstorm Warning | GYX | Merrimack, Rockingham | 53 min |
| Jul 21, 9:36 PM EDT | Mesoscale Discussion | SPC | Belknap, Cheshire, Hillsborough, Rockingham, Strafford | 54 min |
| Jul 21, 9:45 PM EDT | Special Weather Statement | GYX | Rockingham | 45 min |
| Jul 21, 9:47 PM EDT | Severe Thunderstorm Warning | GYX | Rockingham, Strafford | 36 min |
| Jul 21, 10:31 PM EDT | Severe Thunderstorm Warning | BOX | Cheshire, Hillsborough | 44 min |
| Jul 28, 10:18 PM EDT | Special Weather Statement | GYX | Belknap | 42 min |
| Jul 28, 10:56 PM EDT | Special Weather Statement | GYX | Belknap, Carroll | 49 min |
| Aug 2, 10:35 PM EDT | Areal Flood Advisory | GYX | Carroll, Grafton | 3 hr |
| Aug 4, 5:59 AM EDT | Special Weather Statement | GYX | Carroll | 46 min |
| Aug 4, 3:18 PM EDT | Mesoscale Discussion | SPC | Coos | 57 min |
| Aug 5, 11:40 AM EDT | Mesoscale Discussion | SPC | Cheshire, Hillsborough | 95 min |
| Aug 5, 1:46 PM EDT | Special Weather Statement | BOX | Cheshire | 44 min |
| Aug 5, 2:14 PM EDT | Areal Flood Advisory | BOX | Cheshire, Hillsborough | 61 min |
| Aug 5, 2:16 PM EDT | Special Weather Statement | BOX | Cheshire, Hillsborough | 44 min |
| Aug 5, 2:41 PM EDT | Special Weather Statement | BOX | Cheshire, Hillsborough | 64 min |
| Aug 5, 2:59 PM EDT | Areal Flood Advisory | BOX | Cheshire, Hillsborough | 95 min |
| Aug 5, 3:02 PM EDT | Special Weather Statement | BOX | Hillsborough | 43 min |
| Aug 9, 3:47 PM EDT | Special Weather Statement | GYX | Sullivan | 43 min |
| Aug 9, 4:20 PM EDT | Special Weather Statement | GYX | Grafton | 40 min |
| Aug 9, 4:28 PM EDT | Special Weather Statement | GYX | Sullivan | 47 min |
| Aug 9, 5:02 PM EDT | Special Weather Statement | GYX | Grafton | 43 min |
| Aug 9, 5:14 PM EDT | Special Weather Statement | GYX | Belknap | 46 min |
| Aug 9, 5:37 PM EDT | Mesoscale Discussion | SPC | Belknap, Carroll, Cheshire, Coos, Grafton, Hillsborough and 4 more | 53 min |
| Aug 9, 5:46 PM EDT | Special Weather Statement | GYX | Coos | 44 min |
| Aug 9, 5:57 PM EDT | Special Weather Statement | GYX | Sullivan | 48 min |
| Aug 9, 6:26 PM EDT | Special Weather Statement | GYX | Coos | 49 min |
| Aug 9, 6:29 PM EDT | Severe Thunderstorm Warning | GYX | Coos | 46 min |
| Aug 9, 6:35 PM EDT | Severe Thunderstorm Warning | GYX | Coos | 40 min |
| Aug 9, 6:49 PM EDT | Severe Thunderstorm Warning | GYX | Coos | 26 min |
| Aug 9, 7:17 PM EDT | Special Weather Statement | GYX | Coos | 28 min |
| Aug 9, 7:56 PM EDT | Special Weather Statement | GYX | Coos | 34 min |
| Aug 9, 8:46 PM EDT | Special Weather Statement | GYX | Merrimack | 44 min |
| Aug 9, 9:00 PM EDT | Special Weather Statement | GYX | Strafford | 45 min |
| Aug 9, 10:42 PM EDT | Special Weather Statement | GYX | Coos | 48 min |
| Aug 10, 3:35 PM EDT | Mesoscale Discussion | SPC | Belknap, Carroll, Coos, Grafton, Merrimack, Sullivan | 85 min |
| Aug 10, 6:26 PM EDT | Severe Thunderstorm Warning | GYX | Carroll, Coos | 34 min |
| Aug 10, 7:48 PM EDT | Special Weather Statement | GYX | Sullivan | 42 min |
| Aug 10, 8:22 PM EDT | Special Weather Statement | GYX | Grafton | 38 min |
| Aug 16, 11:26 AM EDT | Special Weather Statement | BOX | Cheshire | 64 min |
| Aug 16, 12:05 PM EDT | Severe Thunderstorm Watch | SPC | Belknap, Carroll, Cheshire, Coos, Grafton, Hillsborough and 4 more | 9 hr |
| Aug 16, 2:17 PM EDT | Mesoscale Discussion | SPC | Belknap, Carroll, Cheshire, Coos, Grafton, Hillsborough and 4 more | 88 min |
| Aug 16, 8:31 PM EDT | Special Weather Statement | BOX | Cheshire | 29 min |
| Aug 16, 9:27 PM EDT | Special Weather Statement | BOX | Cheshire | 63 min |
| Aug 25, 11:14 AM EDT | Areal Flood Advisory | BOX | Hillsborough | 3 hr |
| Aug 28, 5:00 PM EDT | Tropical Storm Watch | NHC | Rockingham | 6 days |
| Sep 1, 9:57 AM EDT | Heat Advisory | GYX | Belknap, Carroll, Merrimack, Rockingham, Strafford | 8 hr |
| Sep 2, 2:35 AM EDT | Heat Advisory | GYX | Belknap, Carroll, Merrimack, Rockingham, Strafford | 15 hr |
| Sep 2, 5:57 AM EDT | Tropical Storm Watch | GYX | Rockingham | 35 hr |
| Sep 8, 12:38 AM EDT | Special Weather Statement | GYX | Coos | 52 min |
| Sep 13, 4:03 PM EDT | Mesoscale Discussion | SPC | Cheshire | 87 min |
| Sep 13, 4:18 PM EDT | Special Weather Statement | BOX | Cheshire | 42 min |
| Sep 13, 4:27 PM EDT | Special Weather Statement | GYX | Merrimack | 48 min |
| Sep 13, 4:47 PM EDT | Special Weather Statement | GYX | Merrimack | 43 min |
| Sep 13, 4:50 PM EDT | Special Weather Statement | BOX | Hillsborough | 40 min |
| Sep 13, 5:08 PM EDT | Severe Thunderstorm Warning | BOX | Hillsborough | 52 min |
| Sep 13, 5:12 PM EDT | Special Weather Statement | GYX | Sullivan | 48 min |
| Sep 13, 5:17 PM EDT | Special Weather Statement | GYX | Merrimack | 43 min |
| Sep 13, 6:04 PM EDT | Special Weather Statement | BOX | Hillsborough | 26 min |
| Sep 13, 6:19 PM EDT | Severe Thunderstorm Warning | GYX | Rockingham | 41 min |
| Sep 13, 6:26 PM EDT | Special Weather Statement | GYX | Merrimack | 49 min |
| Sep 13, 7:12 PM EDT | Special Weather Statement | GYX | Rockingham | 48 min |
| Sep 17, 3:08 AM EDT | Frost Advisory | GYX | Coos, Grafton | 27 hr |
| Sep 19, 3:04 PM EDT | High Surf Advisory | GYX | Rockingham | 36 hr |
| Sep 20, 4:42 AM EDT | Frost Advisory | BOX | Cheshire | 26 hr |
| Sep 20, 3:12 PM EDT | Frost Advisory | GYX | Coos | 16 hr |
| Sep 29, 3:30 AM EDT | High Wind Watch | BOX | Cheshire, Hillsborough | 37 hr |
| Sep 29, 3:46 PM EDT | Flood Watch | GYX | Belknap, Carroll, Coos, Grafton, Merrimack, Rockingham and 2 more | 46 hr |
| Sep 30, 4:47 AM EDT | Wind Advisory | BOX | Hillsborough | 35 hr |
| Sep 30, 5:09 AM EDT | Flood Watch | BOX | Cheshire, Hillsborough | 35 hr |
| Sep 30, 5:23 PM EDT | River Flood Warning | GYX | Grafton | 28 hr |
| Sep 30, 5:23 PM EDT | River Flood Warning | GYX | Grafton | 33 hr |
| Sep 30, 5:23 PM EDT | River Flood Warning | GYX | Grafton | 25 hr |
| Oct 1, 12:25 AM EDT | Wind Advisory | GYX | Belknap, Carroll, Coos, Grafton, Merrimack, Rockingham and 2 more | 13 hr |
| Oct 1, 7:41 AM EDT | Areal Flood Advisory | BOX | Cheshire, Hillsborough | 4 hr |
| Oct 1, 9:00 AM EDT | Flash Flood Warning | GYX | Belknap, Carroll, Coos, Grafton, Merrimack, Sullivan | 6 hr |
| Oct 1, 9:07 AM EDT | Areal Flood Advisory | BOX | Hillsborough | 4 hr |
| Oct 1, 9:29 AM EDT | River Flood Warning | GYX | Coos | 66 hr |
| Oct 1, 9:29 AM EDT | River Flood Warning | GYX | Grafton | 33 hr |
| Oct 1, 9:29 AM EDT | River Flood Warning | GYX | Grafton, Sullivan | 39 hr |
| Oct 1, 10:04 AM EDT | Severe Thunderstorm Warning | GYX | Merrimack, Rockingham, Strafford | 56 min |
| Oct 1, 11:31 AM EDT | Areal Flood Advisory | BOX | Cheshire, Hillsborough | 4 hr |
| Oct 1, 12:41 PM EDT | Areal Flood Advisory | BOX | Hillsborough | 3 hr |
| Oct 1, 2:59 PM EDT | Areal Flood Warning | GYX | Belknap, Carroll, Coos, Grafton, Merrimack, Sullivan | 8 hr |
| Oct 2, 3:04 PM EDT | Frost Advisory | GYX | Carroll, Grafton | 16 hr |
| Oct 2, 3:04 PM EDT | Freeze Warning | GYX | Coos | 16 hr |
| Oct 6, 3:31 AM EDT | Coastal Flood Statement | GYX | Rockingham | 20 hr |
| Oct 7, 10:01 AM EDT | Coastal Flood Statement | GYX | Rockingham | 3 hr |
| Oct 9, 3:37 AM EDT | Frost Advisory | GYX | Rockingham | 28 hr |
| Oct 9, 3:37 AM EDT | Freeze Warning | GYX | Belknap, Carroll, Grafton, Merrimack, Rockingham, Strafford and 1 more | 28 hr |
| Oct 9, 4:08 AM EDT | Frost Advisory | BOX | Hillsborough | 24 hr |
| Oct 9, 4:08 AM EDT | Freeze Warning | BOX | Cheshire, Hillsborough | 24 hr |
| Oct 10, 3:55 AM EDT | Frost Advisory | BOX | Hillsborough | 4 hr |
| Oct 10, 3:55 AM EDT | Freeze Warning | BOX | Cheshire, Hillsborough | 4 hr |
| Oct 14, 3:21 PM EDT | Flood Watch | GYX | Belknap, Carroll, Coos, Grafton, Merrimack, Rockingham and 2 more | 24 hr |
| Oct 14, 3:27 PM EDT | Wind Advisory | GYX | Coos, Rockingham | 21 hr |
| Oct 14, 4:14 PM EDT | Wind Advisory | BOX | Cheshire, Hillsborough | 48 hr |
| Oct 15, 12:51 PM EDT | Wind Advisory | GYX | Coos, Grafton | 7 hr |
| Oct 16, 4:13 AM EDT | Wind Advisory | BOX | Cheshire, Hillsborough | 12 hr |
| Oct 18, 4:48 PM EDT | Frost Advisory | GYX | Rockingham | 14 hr |
| Oct 21, 2:39 PM EDT | Special Weather Statement | GYX | Belknap, Rockingham, Strafford | 51 min |
| Oct 21, 3:07 PM EDT | Special Weather Statement | BOX | Hillsborough | 53 min |
| Oct 21, 3:14 PM EDT | Special Weather Statement | GYX | Carroll, Rockingham, Strafford | 46 min |
| Oct 27, 3:35 PM EDT | Special Weather Statement | GYX | Carroll | 85 min |
| Nov 4, 3:28 PM EDT | Coastal Flood Advisory | GYX | Rockingham | 7 hr |
| Nov 5, 3:38 AM EDT | Coastal Flood Advisory | GYX | Rockingham | 8 hr |
| Nov 5, 3:31 PM EDT | Coastal Flood Advisory | GYX | Rockingham | 21 hr |
| Nov 7, 3:34 PM EST | Winter Weather Advisory | GYX | Carroll, Coos, Grafton, Sullivan | 19 hr |
| Nov 7, 7:28 PM EST | Winter Weather Advisory | BOX | Cheshire, Hillsborough | 14 hr |
| Nov 7, 8:52 PM EST | Wind Advisory | GYX | Rockingham, Strafford | 4 hr |
| Nov 7, 10:55 PM EST | Mesoscale Discussion | SPC | Carroll, Coos | 4 hr |
| Nov 8, 12:24 AM EST | High Wind Warning | GYX | Rockingham | 6 hr |
| Nov 8, 12:40 AM EST | Wind Advisory | GYX | Rockingham, Strafford | 11 hr |
| Nov 8, 5:05 AM EST | Wind Advisory | BOX | Cheshire | 8 hr |
| Nov 8, 5:47 AM EST | Coastal Flood Warning | GYX | Rockingham | 8 hr |
| Nov 17, 3:59 AM EST | Wind Advisory | BOX | Cheshire, Hillsborough | 24 hr |
| Nov 17, 2:51 PM EST | Wind Advisory | GYX | Belknap, Carroll, Coos, Grafton, Merrimack, Rockingham and 2 more | 16 hr |
| Nov 20, 3:00 AM EST | Wind Advisory | GYX | Belknap, Carroll, Coos, Grafton, Merrimack, Rockingham and 2 more | 15 hr |
| Nov 22, 3:08 AM EST | Winter Weather Advisory | GYX | Carroll, Coos, Grafton | 19 hr |
| Nov 23, 2:26 PM EST | Wind Advisory | GYX | Belknap, Carroll, Coos, Grafton, Merrimack, Rockingham and 2 more | 28 hr |
| Nov 23, 3:12 PM EST | Wind Advisory | BOX | Cheshire, Hillsborough | 27 hr |
| Nov 25, 3:26 AM EST | Winter Weather Advisory | GYX | Belknap, Carroll, Coos, Grafton, Merrimack, Rockingham and 2 more | 34 hr |
| Nov 25, 3:43 PM EST | Winter Weather Advisory | BOX | Cheshire, Hillsborough | 17 hr |
| Nov 26, 12:47 AM EST | Mesoscale Discussion | SPC | Belknap, Cheshire, Hillsborough, Merrimack, Sullivan | 4 hr |
| Nov 26, 5:20 AM EST | Mesoscale Discussion | SPC | Belknap, Carroll, Coos, Grafton, Hillsborough, Merrimack and 1 more | 4 hr |
| Nov 26, 10:04 AM EST | Winter Weather Advisory | GYX | Belknap, Carroll | 3 hr |
| Dec 1, 3:23 PM EST | Flood Watch | GYX | Carroll, Coos, Grafton | 11 hr |
| Dec 1, 5:06 PM EST | Wind Advisory | GYX | Carroll, Coos, Grafton | 4 hr |
| Dec 2, 1:20 AM EST | River Flood Warning | GYX | Grafton | 3 hr |
| Dec 2, 1:20 AM EST | River Flood Warning | GYX | Carroll | 11 hr |
| Dec 3, 12:00 PM EST | Winter Weather Advisory | GYX | Coos | 24 hr |
| Dec 5, 3:12 PM EST | Winter Weather Advisory | GYX | Coos | 28 hr |
| Dec 6, 3:49 AM EST | Winter Storm Warning | GYX | Coos | 23 hr |
| Dec 11, 3:03 PM EST | High Wind Watch | GYX | Rockingham, Strafford | 12 hr |
| Dec 11, 3:16 PM EST | Flood Watch | GYX | Belknap, Carroll, Coos, Grafton, Merrimack, Rockingham and 2 more | 43 hr |
| Dec 11, 4:26 PM EST | Winter Weather Advisory | BOX | Cheshire, Hillsborough | 19 hr |
| Dec 11, 4:31 PM EST | Wind Advisory | BOX | Hillsborough | 35 hr |
| Dec 12, 3:32 AM EST | High Wind Warning | GYX | Rockingham, Strafford | 26 hr |
| Dec 12, 6:28 AM EST | Mesoscale Discussion | SPC | Cheshire, Sullivan | 4 hr |
| Dec 12, 3:01 PM EST | Wind Advisory | GYX | Belknap, Carroll, Coos, Merrimack | 14 hr |
| Dec 12, 4:56 PM EST | Coastal Flood Statement | GYX | Rockingham | 12 hr |
| Dec 12, 5:10 PM EST | Areal Flood Advisory | GYX | Carroll, Coos | 6 hr |
| Dec 12, 7:22 PM EST | Areal Flood Advisory | BOX | Cheshire, Hillsborough | 8 hr |
| Dec 12, 9:46 PM EST | River Flood Warning | GYX | Carroll | 28 hr |
| Dec 13, 12:07 AM EST | Areal Flood Warning | GYX | Carroll, Coos, Grafton | 18 hr |
| Dec 13, 3:54 AM EST | River Flood Warning | GYX | Grafton | 5 hr |
| Dec 13, 2:30 PM EST | Winter Weather Advisory | GYX | Carroll, Coos, Grafton, Sullivan | 21 hr |
| Dec 13, 6:48 PM EST | Areal Flood Warning | GYX | Carroll, Coos, Grafton | 3 hr |
| Dec 13, 9:43 PM EST | Areal Flood Advisory | GYX | Carroll, Coos, Grafton | 4 hr |
| Dec 20, 6:32 PM EST | Coastal Flood Statement | GYX | Rockingham | 17 hr |
| Dec 21, 2:56 PM EST | Coastal Flood Statement | GYX | Rockingham | 19 hr |
| Dec 22, 10:07 AM EST | Coastal Flood Advisory | GYX | Rockingham | 3 hr |
| Dec 22, 2:05 PM EST | Coastal Flood Statement | GYX | Rockingham | 21 hr |
| Dec 22, 10:55 PM EST | Winter Weather Advisory | GYX | Coos | 10 hr |
| Dec 23, 10:58 AM EST | Coastal Flood Advisory | GYX | Rockingham | 3 hr |
| Dec 25, 3:16 AM EST | Winter Storm Watch | GYX | Belknap, Merrimack, Rockingham, Strafford | 12 hr |
| Dec 25, 3:58 AM EST | Winter Storm Watch | BOX | Cheshire, Hillsborough | 13 hr |
| Dec 25, 3:01 PM EST | Blizzard Watch | GYX | Belknap, Merrimack, Rockingham, Strafford | 13 hr |
| Dec 25, 3:01 PM EST | Winter Storm Watch | GYX | Carroll, Grafton, Sullivan | 13 hr |
| Dec 25, 4:51 PM EST | Blizzard Warning | BOX | Hillsborough | 43 hr |
| Dec 25, 4:51 PM EST | Winter Storm Warning | BOX | Cheshire, Hillsborough | 43 hr |
| Dec 25, 6:00 PM EST | Coastal Flood Statement | GYX | Rockingham | 10 hr |
| Dec 26, 3:40 AM EST | Blizzard Warning | GYX | Belknap, Carroll, Merrimack, Rockingham, Strafford | 38 hr |
| Dec 26, 3:40 AM EST | Winter Storm Warning | GYX | Belknap, Carroll, Coos, Grafton, Merrimack, Sullivan | 38 hr |
| Dec 26, 4:07 AM EST | Coastal Flood Watch | GYX | Rockingham | 11 hr |
| Dec 26, 12:31 PM EST | Mesoscale Discussion | SPC | Hillsborough | 6 hr |
| Dec 26, 3:13 PM EST | Coastal Flood Warning | GYX | Rockingham | 14 hr |
| Dec 26, 6:26 PM EST | Mesoscale Discussion | SPC | Cheshire, Sullivan | 6 hr |
| Dec 26, 8:38 PM EST | Mesoscale Discussion | SPC | Belknap, Carroll, Cheshire, Coos, Grafton, Hillsborough and 4 more | 6 hr |
| Dec 27, 3:30 AM EST | Mesoscale Discussion | SPC | Belknap, Carroll, Cheshire, Grafton, Merrimack, Sullivan | 4 hr |
| Dec 27, 6:56 AM EST | Coastal Flood Statement | GYX | Rockingham | 9 hr |
| Dec 27, 11:55 AM EST | Winter Weather Advisory | BOX | Cheshire, Hillsborough | 16 hr |
| Dec 27, 12:07 PM EST | Winter Weather Advisory | GYX | Belknap, Carroll, Coos, Grafton, Merrimack, Rockingham and 2 more | 6 hr |
| Dec 27, 2:28 PM EST | Wind Chill Advisory | GYX | Carroll, Coos, Grafton | 12 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 archive20092011
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.