Alert archive / New Hampshire / 2011
Weather alerts in New Hampshire, August 2011
124 weather alerts in August 2011, 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 August 2011. Tap one for its archive.
- Alerts
- 124
- Warnings
- 52
- Watches
- 11
- Advisories
- 6
- Busiest day
- August 28, 201124 alerts
Over time
By day
Days in UTC, the clock the archive keeps.
The alerts
Every alert, in the order issued. Times are local, Eastern Time. Each opens its own page with the text, the map, the radar and the sounding.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 1, 12:44 PM EDT | Special Weather Statement | GYX | Sullivan | 31 min |
| Aug 1, 1:15 PM EDT | Special Weather Statement | GYX | Sullivan | 30 min |
| Aug 1, 1:41 PM EDT | Special Weather Statement | BOX | Cheshire | 49 min |
| Aug 1, 1:55 PM EDT | Severe Thunderstorm Warning | BOX | Cheshire | 43 min |
| Aug 1, 2:08 PM EDT | Areal Flood Advisory | BOX | Cheshire, Hillsborough | 3 hr |
| Aug 1, 2:15 PM EDT | Mesoscale Discussion | SPC | Belknap, Carroll, Cheshire, Hillsborough, Merrimack, Rockingham and 1 more | 90 min |
| Aug 1, 2:27 PM EDT | Special Weather Statement | GYX | Carroll | 33 min |
| Aug 1, 2:34 PM EDT | Severe Thunderstorm Watch | SPC | Cheshire, Hillsborough | 6 hr |
| Aug 1, 2:42 PM EDT | Special Weather Statement | BOX | Cheshire | 48 min |
| Aug 1, 2:44 PM EDT | Special Weather Statement | GYX | Sullivan | 31 min |
| Aug 1, 2:50 PM EDT | Areal Flood Advisory | BOX | Cheshire | 2 hr |
| Aug 1, 3:18 PM EDT | Severe Thunderstorm Warning | BOX | Cheshire | 42 min |
| Aug 1, 3:25 PM EDT | Special Weather Statement | BOX | Cheshire | 35 min |
| Aug 1, 3:36 PM EDT | Special Weather Statement | GYX | Sullivan | 24 min |
| Aug 1, 3:38 PM EDT | Severe Thunderstorm Warning | BOX | Cheshire, Hillsborough | 40 min |
| Aug 1, 4:02 PM EDT | Severe Thunderstorm Warning | GYX | Sullivan | 28 min |
| Aug 2, 9:52 AM EDT | Special Weather Statement | GYX | Coos | 23 min |
| Aug 2, 9:55 AM EDT | Severe Thunderstorm Warning | GYX | Coos | 35 min |
| Aug 2, 10:28 AM EDT | Special Weather Statement | GYX | Coos | 32 min |
| Aug 2, 10:42 AM EDT | Mesoscale Discussion | SPC | Carroll, Rockingham, Strafford | 63 min |
| Aug 2, 10:54 AM EDT | Special Weather Statement | GYX | Grafton | 36 min |
| Aug 2, 11:31 AM EDT | Severe Thunderstorm Watch | SPC | Belknap, Carroll, Merrimack, Rockingham, Strafford | 7 hr |
| Aug 2, 11:34 AM EDT | Special Weather Statement | GYX | Grafton | 26 min |
| Aug 2, 12:16 PM EDT | Special Weather Statement | GYX | Carroll | 29 min |
| Aug 2, 2:33 PM EDT | Mesoscale Discussion | SPC | Belknap, Carroll, Cheshire, Hillsborough, Merrimack, Rockingham and 1 more | 57 min |
| Aug 2, 4:24 PM EDT | Special Weather Statement | BOX | Hillsborough | 36 min |
| Aug 2, 5:02 PM EDT | Severe Thunderstorm Warning | GYX | Rockingham, Strafford | 58 min |
| Aug 8, 12:48 AM EDT | Areal Flood Advisory | BOX | Cheshire, Hillsborough | 3 hr |
| Aug 10, 5:39 PM EDT | Special Weather Statement | GYX | Grafton | 36 min |
| Aug 10, 6:16 PM EDT | Special Weather Statement | GYX | Grafton | 29 min |
| Aug 10, 6:30 PM EDT | Special Weather Statement | GYX | Grafton | 30 min |
| Aug 10, 6:31 PM EDT | Special Weather Statement | BOX | Cheshire | 59 min |
| Aug 10, 6:34 PM EDT | Special Weather Statement | GYX | Grafton | 26 min |
| Aug 10, 6:58 PM EDT | Special Weather Statement | GYX | Belknap | 32 min |
| Aug 10, 7:00 PM EDT | Special Weather Statement | GYX | Grafton | 30 min |
| Aug 14, 4:21 PM EDT | Flood Watch | BOX | Hillsborough | 27 hr |
| Aug 15, 12:25 PM EDT | Flood Watch | GYX | Belknap, Carroll, Merrimack, Rockingham, Strafford | 10 hr |
| Aug 18, 5:46 PM EDT | Special Weather Statement | BOX | Cheshire | 44 min |
| Aug 18, 6:39 PM EDT | Special Weather Statement | BOX | Cheshire | 51 min |
| Aug 18, 7:26 PM EDT | Special Weather Statement | BOX | Hillsborough | 49 min |
| Aug 18, 7:30 PM EDT | Severe Thunderstorm Warning | BOX | Cheshire, Hillsborough | 60 min |
| Aug 18, 7:50 PM EDT | Areal Flood Advisory | BOX | Cheshire, Hillsborough | 2 hr |
| Aug 19, 3:05 PM EDT | Special Weather Statement | GYX | Rockingham | 55 min |
| Aug 19, 3:13 PM EDT | Special Weather Statement | GYX | Carroll | 62 min |
| Aug 19, 3:20 PM EDT | Special Weather Statement | GYX | Rockingham | 25 min |
| Aug 19, 3:21 PM EDT | Severe Thunderstorm Warning | GYX | Rockingham | 39 min |
| Aug 19, 3:57 PM EDT | Severe Thunderstorm Warning | BOX | Hillsborough | 23 min |
| Aug 19, 4:07 PM EDT | Special Weather Statement | GYX | Rockingham | 38 min |
| Aug 19, 4:08 PM EDT | Special Weather Statement | BOX | Hillsborough | 37 min |
| Aug 19, 4:19 PM EDT | Severe Thunderstorm Warning | GYX | Belknap, Carroll, Strafford | 56 min |
| Aug 19, 4:29 PM EDT | Severe Thunderstorm Warning | GYX | Rockingham | 31 min |
| Aug 19, 4:38 PM EDT | Special Weather Statement | BOX | Hillsborough | 37 min |
| Aug 19, 4:42 PM EDT | Severe Thunderstorm Warning | GYX | Carroll, Strafford | 48 min |
| Aug 19, 4:47 PM EDT | Special Weather Statement | BOX | Hillsborough | 28 min |
| Aug 19, 5:00 PM EDT | Special Weather Statement | BOX | Cheshire | 45 min |
| Aug 19, 5:07 PM EDT | Severe Thunderstorm Warning | BOX | Cheshire | 38 min |
| Aug 19, 5:10 PM EDT | Special Weather Statement | GYX | Merrimack | 65 min |
| Aug 19, 5:36 PM EDT | Special Weather Statement | BOX | Hillsborough | 39 min |
| Aug 19, 5:41 PM EDT | Areal Flood Advisory | GYX | Belknap, Carroll, Merrimack, Rockingham, Strafford | 3 hr |
| Aug 19, 5:54 PM EDT | Special Weather Statement | BOX | Hillsborough | 66 min |
| Aug 19, 6:23 PM EDT | Special Weather Statement | GYX | Belknap | 37 min |
| Aug 19, 6:31 PM EDT | Special Weather Statement | BOX | Cheshire | 44 min |
| Aug 19, 6:54 PM EDT | Special Weather Statement | GYX | Coos | 66 min |
| Aug 20, 7:00 PM EDT | Tropical Storm Warning | NHC | Rockingham | 8 days |
| Aug 21, 1:20 PM EDT | Severe Thunderstorm Watch | SPC | Belknap, Carroll, Cheshire, Coos, Grafton, Hillsborough and 2 more | 8 hr |
| Aug 21, 1:51 PM EDT | Special Weather Statement | GYX | Grafton, Sullivan | 54 min |
| Aug 21, 1:58 PM EDT | Special Weather Statement | BOX | Cheshire | 47 min |
| Aug 21, 2:11 PM EDT | Severe Thunderstorm Warning | BOX | Cheshire | 49 min |
| Aug 21, 2:15 PM EDT | Severe Thunderstorm Warning | GYX | Merrimack, Sullivan | 45 min |
| Aug 21, 2:28 PM EDT | Severe Thunderstorm Warning | BOX | Cheshire, Hillsborough | 47 min |
| Aug 21, 2:47 PM EDT | Special Weather Statement | BOX | Hillsborough | 58 min |
| Aug 21, 2:56 PM EDT | Severe Thunderstorm Warning | GYX | Grafton, Merrimack, Sullivan | 49 min |
| Aug 21, 3:02 PM EDT | Special Weather Statement | GYX | Belknap | 28 min |
| Aug 21, 3:05 PM EDT | Mesoscale Discussion | SPC | Belknap, Carroll, Rockingham, Strafford | 55 min |
| Aug 21, 3:13 PM EDT | Special Weather Statement | BOX | Cheshire | 47 min |
| Aug 21, 3:20 PM EDT | Severe Thunderstorm Warning | GYX | Coos, Grafton | 55 min |
| Aug 21, 3:24 PM EDT | Severe Thunderstorm Watch | SPC | Belknap, Carroll, Coos, Grafton, Merrimack, Rockingham and 2 more | 6 hr |
| Aug 21, 3:30 PM EDT | Severe Thunderstorm Warning | GYX | Belknap, Carroll, Grafton, Merrimack, Rockingham, Strafford | 45 min |
| Aug 21, 3:34 PM EDT | Special Weather Statement | GYX | Coos | 41 min |
| Aug 21, 4:00 PM EDT | Severe Thunderstorm Warning | GYX | Belknap, Carroll, Coos, Grafton, Merrimack, Strafford | 45 min |
| Aug 21, 4:36 PM EDT | Severe Thunderstorm Warning | GYX | Carroll, Coos, Strafford | 39 min |
| Aug 21, 4:45 PM EDT | Special Weather Statement | GYX | Coos | 45 min |
| Aug 21, 7:12 PM EDT | Mesoscale Discussion | SPC | Belknap, Carroll, Cheshire, Grafton, Merrimack, Sullivan | 63 min |
| Aug 21, 7:19 PM EDT | Severe Thunderstorm Warning | GYX | Grafton, Sullivan | 41 min |
| Aug 21, 7:58 PM EDT | Severe Thunderstorm Warning | GYX | Belknap, Grafton, Merrimack, Sullivan | 47 min |
| Aug 21, 8:59 PM EDT | Special Weather Statement | GYX | Carroll | 46 min |
| Aug 22, 12:38 AM EDT | Areal Flood Advisory | GYX | Carroll, Coos, Grafton, Sullivan | 112 min |
| Aug 25, 5:00 AM EDT | Tropical Storm Watch | NHC | Rockingham | 54 hr |
| Aug 25, 10:50 AM EDT | Special Weather Statement | BOX | Cheshire | 55 min |
| Aug 25, 1:53 PM EDT | Special Weather Statement | GYX | Rockingham | 37 min |
| Aug 26, 3:10 AM EDT | Flood Watch | BOX | Cheshire, Hillsborough | 63 hr |
| Aug 26, 5:10 AM EDT | Tropical Storm Watch | BOX | Cheshire, Hillsborough | 30 hr |
| Aug 26, 3:03 PM EDT | Flood Watch | GYX | Belknap, Carroll, Coos, Grafton, Merrimack, Rockingham and 2 more | 57 hr |
| Aug 26, 5:17 PM EDT | Tropical Storm Watch | GYX | Belknap, Carroll, Coos, Grafton, Merrimack, Rockingham and 2 more | 18 hr |
| Aug 26, 5:33 PM EDT | Tropical Storm Warning | BOX | Cheshire, Hillsborough | 54 hr |
| Aug 27, 11:40 AM EDT | Tropical Storm Warning | GYX | Belknap, Carroll, Coos, Grafton, Merrimack, Rockingham and 2 more | 36 hr |
| Aug 28, 9:47 AM EDT | Areal Flood Warning | GYX | Belknap, Carroll, Coos, Grafton, Merrimack, Rockingham and 2 more | 12 hr |
| Aug 28, 9:48 AM EDT | Areal Flood Warning | BOX | Cheshire, Hillsborough | 16 hr |
| Aug 28, 10:24 AM EDT | Special Weather Statement | GYX | Belknap, Grafton, Merrimack, Rockingham, Strafford, Sullivan | 81 min |
| Aug 28, 10:56 AM EDT | Special Weather Statement | GYX | Carroll, Coos, Grafton | 34 min |
| Aug 28, 1:16 PM EDT | River Flood Warning | GYX | Coos | 26 hr |
| Aug 28, 1:16 PM EDT | River Flood Warning | GYX | Grafton | 18 hr |
| Aug 28, 1:16 PM EDT | River Flood Warning | GYX | Grafton, Sullivan | 30 hr |
| Aug 28, 1:16 PM EDT | River Flood Warning | GYX | Grafton | 17 hr |
| Aug 28, 1:16 PM EDT | River Flood Warning | GYX | Grafton | 35 hr |
| Aug 28, 1:16 PM EDT | River Flood Warning | GYX | Carroll | 26 hr |
| Aug 28, 1:16 PM EDT | River Flood Warning | GYX | Belknap, Grafton, Merrimack | 11 hr |
| Aug 28, 1:16 PM EDT | River Flood Warning | GYX | Merrimack | 26 hr |
| Aug 28, 1:16 PM EDT | River Flood Warning | GYX | Sullivan | 16 hr |
| Aug 28, 1:16 PM EDT | River Flood Warning | GYX | Merrimack | 11 hr |
| Aug 28, 1:16 PM EDT | River Flood Warning | GYX | Grafton | 15 hr |
| Aug 28, 1:16 PM EDT | River Flood Warning | GYX | Merrimack | 11 hr |
| Aug 28, 1:16 PM EDT | River Flood Warning | GYX | Grafton | 13 hr |
| Aug 28, 1:35 PM EDT | Flash Flood Warning | GYX | Carroll, Coos, Grafton | 6 hr |
| Aug 28, 1:38 PM EDT | River Flood Warning | BOX | Cheshire, Hillsborough | 5 hr |
| Aug 28, 1:38 PM EDT | River Flood Warning | BOX | Hillsborough | 5 hr |
| Aug 28, 3:46 PM EDT | River Flood Warning | BOX | Cheshire | 28 hr |
| Aug 28, 5:01 PM EDT | Flash Flood Warning | GYX | Grafton | 82 min |
| Aug 28, 5:24 PM EDT | River Flood Warning | GYX | Merrimack | 29 hr |
| Aug 28, 6:35 PM EDT | Flash Flood Warning | GYX | Carroll, Coos, Grafton | 6 hr |
| Aug 29, 12:31 AM EDT | Areal Flood Warning | GYX | Carroll, Coos, Grafton | 8 hr |
| Aug 29, 12:32 AM EDT | River Flood Warning | GYX | Merrimack | 14 hr |
| Aug 29, 1:29 AM EDT | River Flood Warning | GYX | Coos | 7 hr |
| Aug 29, 9:00 AM EDT | River Flood Warning | GYX | Belknap, Grafton, Merrimack | 10 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.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20102012
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.