Alert archive / New Hampshire / Sullivan County
Weather alerts in Sullivan County, New Hampshire, 2008
142 weather alerts in 2008, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Sullivan County and its neighbors
Each county as a circle sized by its count in 2008. Tap one for its archive.
- Alerts
- 142
- Warnings
- 27
- Watches
- 26
- Advisories
- 34
- Busiest month
- December25 alerts
- Busiest day
- July 18, 20086 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Sullivan County, 2008
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 11 | 6 | 45% | 2 | 100% | 14 min |
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2008
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Gray, ME: tornado warnings | 4 | 2 | 50% | 14 | 43% | 10 min |
| NWS Gray, ME: severe thunderstorm warnings | 223 | 96 | 57% | 231 | 80% | 21 min |
| NWS Gray, ME: flash flood warnings | 16 | 9 | 44% | 17 | 65% | 50 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 | Lasted |
|---|---|---|---|
| Dec 31, 9:03 PM EST | Winter Storm Warning | GYX | 34 hr |
| Jan 9, 3:22 AM EST | Wind Advisory | GYX | 18 hr |
| Jan 10, 3:03 PM EST | Winter Weather Advisory | GYX | 28 hr |
| Jan 13, 3:41 PM EST | Heavy Snow Warning | GYX | 31 hr |
| Jan 17, 3:22 PM EST | Winter Weather Advisory | GYX | 20 hr |
| Jan 18, 12:57 AM EST | Mesoscale Discussion | SPC | 6 hr |
| Jan 18, 7:26 AM EST | Mesoscale Discussion | SPC | 4 hr |
| Jan 29, 3:39 PM EST | Freezing Rain Advisory | GYX | 18 hr |
| Jan 30, 3:28 AM EST | Wind Advisory | GYX | 15 hr |
| Jan 31, 3:21 AM EST | Winter Storm Watch | GYX | 25 hr |
| Feb 1, 4:01 AM EST | Winter Storm Warning | GYX | 24 hr |
| Feb 1, 4:11 AM EST | Wind Advisory | GYX | 31 hr |
| Feb 1, 1:15 PM EST | Mesoscale Discussion | SPC | 4 hr |
| Feb 1, 7:33 PM EST | Mesoscale Discussion | SPC | 4 hr |
| Feb 5, 1:10 AM EST | Mesoscale Discussion | SPC | 3 hr |
| Feb 5, 6:57 AM EST | Mesoscale Discussion | SPC | 6 hr |
| Feb 5, 3:59 PM EST | Winter Weather Advisory | GYX | 42 hr |
| Feb 6, 3:30 AM EST | Winter Storm Warning | GYX | 27 hr |
| Feb 9, 3:01 AM EST | Snow Advisory | GYX | 43 hr |
| Feb 10, 2:58 AM EST | Wind Advisory | GYX | 33 hr |
| Feb 11, 3:37 PM EST | Winter Storm Watch | GYX | 13 hr |
| Feb 12, 4:20 AM EST | Winter Storm Warning | GYX | 41 hr |
| Feb 12, 7:41 PM EST | Mesoscale Discussion | SPC | 6 hr |
| Feb 13, 1:31 AM EST | Mesoscale Discussion | SPC | 6 hr |
| Feb 13, 7:49 AM EST | Mesoscale Discussion | SPC | 4 hr |
| Feb 13, 1:21 PM EST | Mesoscale Discussion | SPC | 6 hr |
| Feb 17, 4:17 AM EST | Winter Weather Advisory | GYX | 30 hr |
| Feb 21, 3:46 PM EST | Snow Advisory | GYX | 30 hr |
| Feb 25, 3:29 AM EST | Winter Storm Watch | GYX | 25 hr |
| Feb 26, 4:10 AM EST | Winter Storm Warning | GYX | 31 hr |
| Feb 26, 6:18 PM EST | Mesoscale Discussion | SPC | 6 hr |
| Feb 28, 3:29 PM EST | Winter Storm Watch | GYX | 13 hr |
| Feb 29, 4:06 AM EST | Heavy Snow Warning | GYX | 41 hr |
| Mar 3, 4:08 PM EST | Winter Storm Watch | GYX | 11 hr |
| Mar 4, 3:16 AM EST | Winter Weather Advisory | GYX | 36 hr |
| Mar 6, 3:53 PM EST | Winter Storm Watch | GYX | 24 hr |
| Mar 7, 3:26 PM EST | Flood Watch | GYX | 53 hr |
| Mar 7, 3:44 PM EST | Winter Weather Advisory | GYX | 39 hr |
| Mar 8, 3:36 PM EST | Wind Advisory | GYX | 19 hr |
| Mar 14, 3:47 AM EDT | Winter Weather Advisory | GYX | 31 hr |
| Mar 19, 4:04 AM EDT | Winter Weather Advisory | GYX | 24 hr |
| Mar 20, 3:49 AM EDT | High Wind Watch | GYX | 24 hr |
| Mar 21, 4:06 AM EDT | Wind Advisory | GYX | 16 hr |
| Mar 27, 10:38 AM EDT | Winter Storm Watch | GYX | 5 hr |
| Mar 27, 3:45 PM EDT | Winter Storm Warning | GYX | 21 hr |
| Apr 1, 3:33 PM EDT | Wind Advisory | GYX | 26 hr |
| Apr 11, 3:36 AM EDT | Flood Watch | GYX | 44 hr |
| Apr 12, 3:30 PM EDT | River Flood Warning | GYX | 18 hr |
| Apr 28, 3:23 AM EDT | Flood Watch | GYX | 38 hr |
| Apr 29, 11:42 AM EDT | River Flood Warning | GYX | 11 hr |
| May 27, 11:20 AM EDT | Mesoscale Discussion | SPC | 115 min |
| Jun 8, 4:53 PM EDT | Severe Thunderstorm Warning | GYX | 52 min |
| Jun 10, 12:34 PM EDT | Mesoscale Discussion | SPC | 86 min |
| Jun 10, 1:16 PM EDT | Severe Thunderstorm Watch | SPC | 11 hr |
| Jun 10, 7:44 PM EDT | Severe Thunderstorm Warning | GYX | 61 min |
| Jun 10, 9:38 PM EDT | Severe Thunderstorm Warning | GYX | 52 min |
| Jun 16, 3:27 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jun 17, 10:44 AM EDT | Mesoscale Discussion | SPC | 61 min |
| Jun 22, 10:31 AM EDT | Mesoscale Discussion | SPC | 89 min |
| Jun 22, 12:39 PM EDT | Severe Thunderstorm Warning | GYX | 36 min |
| Jun 23, 3:30 AM EDT | Mesoscale Discussion | SPC | 90 min |
| Jun 23, 11:10 AM EDT | Mesoscale Discussion | SPC | 95 min |
| Jun 24, 12:07 PM EDT | Mesoscale Discussion | SPC | 113 min |
| Jun 27, 12:10 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Jun 27, 4:46 PM EDT | Mesoscale Discussion | SPC | 59 min |
| Jun 29, 4:06 PM EDT | Severe Thunderstorm Warning | GYX | 54 min |
| Jun 29, 7:13 PM EDT | Mesoscale Discussion | SPC | 92 min |
| Jun 29, 11:58 PM EDT | Mesoscale Discussion | SPC | 92 min |
| Jun 30, 12:15 AM EDT | Mesoscale Discussion | SPC | 90 min |
| Jul 9, 12:32 PM EDT | Mesoscale Discussion | SPC | 118 min |
| Jul 18, 12:44 PM EDT | Mesoscale Discussion | SPC | 61 min |
| Jul 18, 1:24 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 18, 4:10 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 18, 4:52 PM EDT | Severe Thunderstorm Warning | GYX | 38 min |
| Jul 18, 5:39 PM EDT | Severe Thunderstorm Warning | GYX | 51 min |
| Jul 18, 7:30 PM EDT | Mesoscale Discussion | SPC | 90 min |
| Jul 19, 12:04 PM EDT | Mesoscale Discussion | SPC | 116 min |
| Jul 19, 1:26 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 19, 4:01 PM EDT | Severe Thunderstorm Warning | GYX | 59 min |
| Jul 19, 4:44 PM EDT | Mesoscale Discussion | SPC | 91 min |
| Jul 20, 4:28 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 20, 7:27 PM EDT | Mesoscale Discussion | SPC | 63 min |
| Jul 20, 7:34 PM EDT | Severe Thunderstorm Warning | GYX | 56 min |
| Jul 22, 5:43 PM EDT | Areal Flood Advisory | GYX | 3 hr |
| Jul 23, 3:26 PM EDT | Flood Watch | GYX | 35 hr |
| Jul 24, 3:42 PM EDT | Areal Flood Warning | GYX | 6 hr |
| Jul 27, 11:42 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 27, 12:02 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 27, 3:41 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 27, 3:45 PM EDT | Severe Thunderstorm Warning | GYX | 60 min |
| Jul 28, 1:58 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 31, 12:38 PM EDT | Mesoscale Discussion | SPC | 97 min |
| Aug 2, 12:32 PM EDT | Mesoscale Discussion | SPC | 88 min |
| Aug 3, 10:27 AM EDT | Mesoscale Discussion | SPC | 3 hr |
| Aug 7, 11:34 AM EDT | Mesoscale Discussion | SPC | 116 min |
| Aug 7, 4:25 PM EDT | Mesoscale Discussion | SPC | 65 min |
| Aug 7, 10:17 PM EDT | Flash Flood Watch | GYX | 23 hr |
| Aug 8, 4:06 PM EDT | Areal Flood Warning | GYX | 3 hr |
| Aug 10, 3:50 AM EDT | Flash Flood Watch | GYX | 20 hr |
| Aug 10, 4:29 PM EDT | Severe Thunderstorm Warning | GYX | 61 min |
| Aug 11, 8:34 AM EDT | Flash Flood Watch | GYX | 13 hr |
| Aug 16, 12:56 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 18, 8:42 PM EDT | Mesoscale Discussion | SPC | 93 min |
| Sep 5, 3:25 PM EDT | Flash Flood Watch | GYX | 35 hr |
| Sep 6, 7:59 AM EDT | Areal Flood Advisory | GYX | 2 hr |
| Sep 6, 8:39 PM EDT | Areal Flood Advisory | GYX | 111 min |
| Sep 18, 3:07 AM EDT | Frost Advisory | GYX | 29 hr |
| Sep 19, 2:55 PM EDT | Frost Advisory | GYX | 17 hr |
| Sep 22, 3:12 PM EDT | Frost Advisory | GYX | 16 hr |
| Sep 26, 3:41 PM EDT | Flood Watch | GYX | 44 hr |
| Oct 1, 2:24 PM EDT | Mesoscale Discussion | SPC | 96 min |
| Oct 6, 2:17 PM EDT | Frost Advisory | GYX | 18 hr |
| Oct 25, 4:04 PM EDT | Wind Advisory | GYX | 16 hr |
| Nov 24, 2:55 PM EST | Wind Advisory | GYX | 32 hr |
| Nov 24, 3:14 PM EST | Flood Watch | GYX | 33 hr |
| Nov 30, 3:10 AM EST | Winter Weather Advisory | GYX | 31 hr |
| Nov 30, 6:16 PM EST | Mesoscale Discussion | SPC | 6 hr |
| Dec 10, 4:50 AM EST | Winter Storm Watch | GYX | 25 hr |
| Dec 11, 6:04 AM EST | Winter Storm Warning | GYX | 30 hr |
| Dec 11, 7:30 AM EST | Mesoscale Discussion | SPC | 4 hr |
| Dec 11, 1:52 PM EST | Mesoscale Discussion | SPC | 3 hr |
| Dec 11, 6:56 PM EST | Mesoscale Discussion | SPC | 4 hr |
| Dec 12, 12:21 AM EST | Mesoscale Discussion | SPC | 4 hr |
| Dec 12, 6:20 AM EST | Mesoscale Discussion | SPC | 5 hr |
| Dec 16, 3:34 PM EST | Winter Weather Advisory | GYX | 26 hr |
| Dec 17, 6:36 AM EST | Mesoscale Discussion | SPC | 4 hr |
| Dec 18, 3:41 AM EST | Winter Storm Watch | GYX | 11 hr |
| Dec 18, 3:00 PM EST | Winter Storm Warning | GYX | 34 hr |
| Dec 19, 12:22 PM EST | Mesoscale Discussion | SPC | 6 hr |
| Dec 19, 2:42 PM EST | Winter Storm Watch | GYX | 25 hr |
| Dec 19, 6:46 PM EST | Mesoscale Discussion | SPC | 4 hr |
| Dec 20, 3:28 PM EST | Winter Storm Warning | GYX | 36 hr |
| Dec 21, 11:54 AM EST | Mesoscale Discussion | SPC | 4 hr |
| Dec 21, 6:11 PM EST | Mesoscale Discussion | SPC | 4 hr |
| Dec 24, 3:40 AM EST | Winter Weather Advisory | GYX | 24 hr |
| Dec 24, 7:32 AM EST | Mesoscale Discussion | SPC | 4 hr |
| Dec 24, 12:45 PM EST | Mesoscale Discussion | SPC | 4 hr |
| Dec 24, 9:41 PM EST | Wind Advisory | GYX | 15 hr |
| Dec 26, 3:25 PM EST | Winter Weather Advisory | GYX | 28 hr |
| Dec 30, 1:38 AM EST | Wind Advisory | GYX | 13 hr |
| Dec 30, 3:11 PM EST | Winter Weather Advisory | GYX | 24 hr |
| Dec 31, 9:39 AM EST | Winter Storm Warning | GYX | 6 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 | 11 |
| Severe Thunderstorm Watch | 5 |
| Mesoscale Discussion | 55 |
| Flooding | |
| Areal Flood Warning | 2 |
| River Flood Warning | 2 |
| Flash Flood Watch | 4 |
| Flood Watch | 6 |
| Areal Flood Advisory | 3 |
| Winter | |
| Heavy Snow Warning | 2 |
| Winter Storm Warning | 10 |
| Winter Storm Watch | 10 |
| Freezing Rain Advisory | 1 |
| Snow Advisory | 2 |
| Winter Weather Advisory | 13 |
| Cold | |
| Frost Advisory | 4 |
| Wind and dust | |
| High Wind Watch | 1 |
| Wind Advisory | 11 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20072009
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.