Alert archive / New Hampshire / 2009
Weather alerts in New Hampshire, September 2009
9 weather alerts in September 2009, 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 September 2009. Tap one for its archive.
- Alerts
- 9
- Warnings
- 3
- Watches
- 0
- Advisories
- 5
- Busiest day
- September 25, 20094 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 |
|---|---|---|---|---|
| Sep 16, 2:25 AM EDT | Frost Advisory | GYX | Carroll, Coos, Grafton | 30 hr |
| Sep 19, 2:43 AM EDT | Frost Advisory | GYX | Belknap, Carroll, Merrimack, Rockingham, Strafford, Sullivan | 29 hr |
| Sep 19, 2:43 AM EDT | Freeze Warning | GYX | Carroll, Coos, Grafton | 29 hr |
| Sep 19, 2:49 AM EDT | Frost Advisory | BOX | Cheshire, Hillsborough | 29 hr |
| Sep 23, 1:18 PM EDT | Mesoscale Discussion | SPC | Coos, Grafton, Sullivan | 57 min |
| Sep 25, 3:48 AM EDT | Frost Advisory | GYX | Belknap, Carroll, Grafton, Merrimack, Rockingham, Strafford and 1 more | 28 hr |
| Sep 25, 3:48 AM EDT | Freeze Warning | GYX | Belknap, Carroll, Coos, Grafton, Merrimack, Strafford and 1 more | 28 hr |
| Sep 25, 4:38 AM EDT | Frost Advisory | BOX | Cheshire, Hillsborough | 27 hr |
| Sep 25, 4:23 PM EDT | Freeze Warning | BOX | Cheshire, Hillsborough | 16 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 | |
| Mesoscale Discussion | 1 |
| Cold | |
| Freeze Warning | 3 |
| Frost Advisory | 5 |
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 archive20082010
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.