Alert archive / New Hampshire / 2020
Weather alerts in New Hampshire, May 2020
52 weather alerts in May 2020, 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 May 2020. Tap one for its archive.
- Alerts
- 52
- Warnings
- 15
- Watches
- 1
- Advisories
- 11
- Busiest day
- May 15, 20209 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 |
|---|---|---|---|---|
| May 6, 3:48 AM EDT | Coastal Flood Statement | GYX | Rockingham | 21 hr |
| May 7, 3:11 AM EDT | Coastal Flood Advisory | GYX | Rockingham | 24 hr |
| May 7, 9:41 PM EDT | Special Weather Statement | GYX | Cheshire, Sullivan | 49 min |
| May 8, 3:11 AM EDT | Coastal Flood Statement | GYX | Rockingham | 23 hr |
| May 8, 3:15 PM EDT | Coastal Flood Advisory | GYX | Rockingham | 11 hr |
| May 8, 8:24 PM EDT | Wind Advisory | GYX | Belknap, Carroll, Cheshire, Hillsborough, Merrimack, Rockingham and 1 more | 24 hr |
| May 9, 3:00 PM EDT | Freeze Warning | GYX | Rockingham | 15 hr |
| May 11, 12:56 PM EDT | Mesoscale Discussion | SPC | Belknap, Carroll, Cheshire, Hillsborough, Merrimack, Rockingham and 2 more | 3 hr |
| May 11, 2:20 PM EDT | Special Weather Statement | GYX | Belknap, Carroll | 55 min |
| May 11, 3:51 PM EDT | Special Weather Statement | GYX | Coos | 69 min |
| May 11, 7:18 PM EDT | Special Weather Statement | GYX | Rockingham | 27 min |
| May 12, 10:07 AM EDT | Wind Advisory | GYX | Carroll | 5 hr |
| May 12, 3:21 PM EDT | Frost Advisory | GYX | Rockingham | 15 hr |
| May 12, 3:21 PM EDT | Freeze Warning | GYX | Belknap, Carroll, Cheshire, Grafton, Hillsborough, Merrimack and 3 more | 15 hr |
| May 13, 2:54 PM EDT | Frost Advisory | GYX | Rockingham | 16 hr |
| May 13, 2:54 PM EDT | Freeze Warning | GYX | Belknap, Carroll, Cheshire, Grafton, Hillsborough, Merrimack and 2 more | 16 hr |
| May 15, 3:32 PM EDT | Tornado Watch | SPC | Belknap, Cheshire, Grafton, Hillsborough, Merrimack, Rockingham and 2 more | 6 hr |
| May 15, 4:58 PM EDT | Mesoscale Discussion | SPC | Belknap, Cheshire, Grafton, Hillsborough, Merrimack, Rockingham and 1 more | 92 min |
| May 15, 6:47 PM EDT | Severe Thunderstorm Warning | GYX | Cheshire, Sullivan | 58 min |
| May 15, 6:53 PM EDT | Special Weather Statement | GYX | Sullivan | 37 min |
| May 15, 6:59 PM EDT | Mesoscale Discussion | SPC | Cheshire, Hillsborough | 2 hr |
| May 15, 7:16 PM EDT | Severe Thunderstorm Warning | GYX | Grafton, Merrimack, Sullivan | 44 min |
| May 15, 7:37 PM EDT | Severe Thunderstorm Warning | GYX | Cheshire, Hillsborough, Merrimack, Sullivan | 53 min |
| May 15, 7:43 PM EDT | Severe Thunderstorm Warning | GYX | Belknap, Carroll, Grafton, Merrimack | 47 min |
| May 15, 7:46 PM EDT | Tornado Warning | GYX | Cheshire, Hillsborough | 18 min |
| May 15, 8:15 PM EDT | Special Weather Statement | GYX | Belknap, Carroll, Strafford | 60 min |
| May 15, 8:16 PM EDT | Severe Thunderstorm Warning | GYX | Belknap, Hillsborough, Merrimack, Rockingham, Strafford | 44 min |
| May 21, 3:12 PM EDT | Beach Hazards Statement | GYX | Rockingham | 29 hr |
| May 23, 2:58 PM EDT | Frost Advisory | GYX | Carroll, Coos | 16 hr |
| May 25, 10:15 PM EDT | Dense Fog Advisory | GYX | Rockingham | 10 hr |
| May 27, 11:38 AM EDT | Beach Hazards Statement | GYX | Rockingham | 8 hr |
| May 27, 1:28 PM EDT | Special Weather Statement | GYX | Grafton | 32 min |
| May 27, 2:20 PM EDT | Areal Flood Advisory | GYX | Carroll, Coos, Grafton | 3 hr |
| May 27, 2:27 PM EDT | Mesoscale Discussion | SPC | Coos, Grafton | 93 min |
| May 27, 2:28 PM EDT | Areal Flood Warning | GYX | Carroll, Coos, Grafton | 3 hr |
| May 27, 2:34 PM EDT | Special Weather Statement | GYX | Grafton | 26 min |
| May 27, 2:48 PM EDT | Flash Flood Warning | GYX | Carroll | 3 hr |
| May 27, 2:53 PM EDT | Severe Thunderstorm Warning | GYX | Grafton | 52 min |
| May 27, 3:12 PM EDT | Areal Flood Advisory | GYX | Grafton | 3 hr |
| May 29, 6:19 PM EDT | Special Weather Statement | GYX | Coos | 26 min |
| May 29, 6:37 PM EDT | Special Weather Statement | GYX | Coos | 23 min |
| May 29, 7:57 PM EDT | Special Weather Statement | GYX | Grafton | 48 min |
| May 29, 8:01 PM EDT | Mesoscale Discussion | SPC | Belknap, Carroll, Cheshire, Coos, Grafton, Merrimack and 1 more | 119 min |
| May 29, 8:15 PM EDT | Special Weather Statement | GYX | Sullivan | 45 min |
| May 29, 8:21 PM EDT | Severe Thunderstorm Warning | GYX | Coos | 39 min |
| May 29, 8:26 PM EDT | Severe Thunderstorm Warning | GYX | Carroll, Coos, Grafton | 49 min |
| May 29, 8:53 PM EDT | Severe Thunderstorm Warning | GYX | Coos | 37 min |
| May 29, 9:03 PM EDT | Special Weather Statement | GYX | Coos | 57 min |
| May 29, 9:33 PM EDT | Special Weather Statement | GYX | Sullivan | 42 min |
| May 29, 10:05 PM EDT | Special Weather Statement | GYX | Grafton | 55 min |
| May 31, 2:59 AM EDT | Beach Hazards Statement | GYX | Rockingham | 17 hr |
| May 31, 2:56 PM EDT | Frost Advisory | GYX | Carroll, Coos, Grafton, Sullivan | 15 hr |
By product
Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.
| Product | Alerts |
|---|---|
| Severe storms | |
| Severe Thunderstorm Warning | 9 |
| Tornado Warning | 1 |
| Tornado Watch | 1 |
| Mesoscale Discussion | 5 |
| Special Weather Statement | 15 |
| Flooding | |
| Areal Flood Warning | 1 |
| Flash Flood Warning | 1 |
| Areal Flood Advisory | 2 |
| Cold | |
| Freeze Warning | 3 |
| Frost Advisory | 4 |
| Wind and dust | |
| Wind Advisory | 2 |
| Fog and smoke | |
| Dense Fog Advisory | 1 |
| Coast and beach | |
| Coastal Flood Advisory | 2 |
| Beach Hazards Statement | 3 |
| Coastal Flood Statement | 2 |
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 archive20192021
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.