Alert archive / New Hampshire / Sullivan County
Weather alerts in Sullivan County, New Hampshire, 2013
151 weather alerts in 2013, 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 2013. Tap one for its archive.
- Alerts
- 151
- Warnings
- 24
- Watches
- 31
- Advisories
- 48
- Busiest month
- June35 alerts
- Busiest day
- June 2, 201311 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, 2013
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 12 | 11 | 8% | 12 | 92% | 13 min |
| Flash flood warnings | 5 | 5 | 0% | 4 | 75% | 142 min |
Each office's whole area, 2013
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Gray, ME: tornado warnings | 2 | 1 | 50% | 1 | 100% | 23 min |
| NWS Gray, ME: severe thunderstorm warnings | 144 | 115 | 20% | 271 | 89% | 21 min |
| NWS Gray, ME: flash flood warnings | 35 | 23 | 34% | 38 | 89% | 69 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 |
|---|---|---|---|
| Jan 11, 2:36 PM EST | Freezing Rain Advisory | GYX | 21 hr |
| Jan 12, 4:57 PM EST | Dense Fog Advisory | GYX | 39 hr |
| Jan 15, 3:18 PM EST | Winter Weather Advisory | GYX | 29 hr |
| Jan 20, 4:02 AM EST | Wind Advisory | GYX | 15 hr |
| Jan 22, 3:40 AM EST | Wind Chill Advisory | GYX | 3 days |
| Jan 28, 3:48 AM EST | Winter Weather Advisory | GYX | 24 hr |
| Jan 29, 3:44 AM EST | Winter Weather Advisory | GYX | 30 hr |
| Jan 30, 11:38 AM EST | Dense Fog Advisory | GYX | 15 hr |
| Jan 30, 11:50 AM EST | Flood Watch | GYX | 30 hr |
| Jan 30, 3:09 PM EST | High Wind Warning | GYX | 24 hr |
| Jan 31, 1:42 PM EST | River Flood Warning | GYX | 16 hr |
| Jan 31, 3:06 PM EST | Wind Advisory | GYX | 6 hr |
| Feb 6, 3:40 AM EST | Winter Storm Watch | GYX | 35 hr |
| Feb 7, 2:56 PM EST | Winter Storm Warning | GYX | 48 hr |
| Feb 8, 8:37 PM EST | Mesoscale Discussion | SPC | 6 hr |
| Feb 10, 2:30 PM EST | Winter Weather Advisory | GYX | 27 hr |
| Feb 11, 5:36 PM EST | Dense Fog Advisory | GYX | 9 hr |
| Feb 16, 3:36 PM EST | Wind Advisory | GYX | 31 hr |
| Feb 22, 3:32 AM EST | Winter Storm Watch | GYX | 24 hr |
| Feb 23, 3:34 AM EST | Winter Weather Advisory | GYX | 44 hr |
| Feb 25, 3:36 PM EST | Winter Storm Watch | GYX | 24 hr |
| Feb 26, 3:50 AM EST | Winter Storm Warning | GYX | 55 hr |
| Mar 6, 3:50 PM EST | Winter Weather Advisory | GYX | 42 hr |
| Mar 12, 3:07 AM EDT | Flood Watch | GYX | 24 hr |
| Mar 17, 3:22 PM EDT | Winter Storm Watch | GYX | 12 hr |
| Mar 18, 3:41 AM EDT | Winter Storm Warning | GYX | 49 hr |
| Apr 11, 3:51 AM EDT | Winter Weather Advisory | GYX | 51 hr |
| Apr 19, 10:24 PM EDT | Special Weather Statement | GYX | 51 min |
| Apr 19, 10:28 PM EDT | Mesoscale Discussion | SPC | 92 min |
| May 9, 7:07 PM EDT | Special Weather Statement | GYX | 23 min |
| May 9, 7:22 PM EDT | Areal Flood Advisory | GYX | 83 min |
| May 21, 9:23 PM EDT | Special Weather Statement | GYX | 37 min |
| May 21, 9:53 PM EDT | Special Weather Statement | GYX | 37 min |
| May 22, 4:28 PM EDT | Mesoscale Discussion | SPC | 92 min |
| May 22, 8:21 PM EDT | Mesoscale Discussion | SPC | 54 min |
| May 23, 3:59 PM EDT | Areal Flood Advisory | GYX | 3 hr |
| May 26, 3:24 PM EDT | Frost Advisory | GYX | 14 hr |
| May 27, 2:46 PM EDT | Frost Advisory | GYX | 15 hr |
| Jun 2, 10:48 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 2, 11:33 AM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jun 2, 1:52 PM EDT | Mesoscale Discussion | SPC | 83 min |
| Jun 2, 2:42 PM EDT | Special Weather Statement | GYX | 48 min |
| Jun 2, 2:55 PM EDT | Severe Thunderstorm Warning | GYX | 35 min |
| Jun 2, 3:31 PM EDT | Severe Thunderstorm Warning | GYX | 44 min |
| Jun 2, 3:59 PM EDT | Severe Thunderstorm Warning | GYX | 31 min |
| Jun 2, 4:13 PM EDT | Severe Thunderstorm Warning | GYX | 32 min |
| Jun 2, 4:26 PM EDT | Mesoscale Discussion | SPC | 94 min |
| Jun 2, 4:27 PM EDT | Severe Thunderstorm Warning | GYX | 33 min |
| Jun 2, 5:05 PM EDT | Severe Thunderstorm Warning | GYX | 40 min |
| Jun 6, 2:43 PM EDT | Flood Watch | GYX | 43 hr |
| Jun 10, 3:46 AM EDT | Flood Watch | GYX | 35 hr |
| Jun 17, 12:07 PM EDT | Mesoscale Discussion | SPC | 83 min |
| Jun 17, 1:14 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 17, 2:22 PM EDT | Special Weather Statement | GYX | 38 min |
| Jun 17, 2:40 PM EDT | Special Weather Statement | GYX | 50 min |
| Jun 23, 1:01 PM EDT | Mesoscale Discussion | SPC | 119 min |
| Jun 23, 3:16 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 23, 4:36 PM EDT | Mesoscale Discussion | SPC | 84 min |
| Jun 23, 7:45 PM EDT | Mesoscale Discussion | SPC | 60 min |
| Jun 24, 3:25 PM EDT | Mesoscale Discussion | SPC | 65 min |
| Jun 24, 4:22 PM EDT | Special Weather Statement | GYX | 23 min |
| Jun 25, 3:11 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 25, 4:52 PM EDT | Mesoscale Discussion | SPC | 83 min |
| Jun 27, 3:22 AM EDT | Flood Watch | GYX | 36 hr |
| Jun 28, 7:15 PM EDT | Areal Flood Advisory | GYX | 3 hr |
| Jun 29, 1:22 PM EDT | Mesoscale Discussion | SPC | 113 min |
| Jun 29, 2:12 PM EDT | Special Weather Statement | GYX | 33 min |
| Jun 30, 2:33 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 30, 4:07 PM EDT | Special Weather Statement | BTV | 53 min |
| Jun 30, 4:36 PM EDT | Areal Flood Advisory | GYX | 3 hr |
| Jun 30, 4:56 PM EDT | Severe Thunderstorm Warning | GYX | 34 min |
| Jun 30, 5:32 PM EDT | Flash Flood Warning | GYX | 3 hr |
| Jun 30, 6:21 PM EDT | Flash Flood Warning | GYX | 3 hr |
| Jul 1, 3:50 AM EDT | Flash Flood Watch | GYX | 24 hr |
| Jul 2, 1:23 PM EDT | Flash Flood Watch | GYX | 14 hr |
| Jul 2, 3:11 PM EDT | Areal Flood Advisory | GYX | 3 hr |
| Jul 2, 3:32 PM EDT | Flash Flood Warning | GYX | 7 hr |
| Jul 2, 4:55 PM EDT | Areal Flood Advisory | GYX | 80 min |
| Jul 2, 5:25 PM EDT | Flash Flood Warning | GYX | 6 hr |
| Jul 2, 9:21 PM EDT | Areal Flood Advisory | GYX | 114 min |
| Jul 2, 11:23 PM EDT | Areal Flood Advisory | GYX | 3 hr |
| Jul 3, 9:54 AM EDT | Flash Flood Watch | GYX | 10 hr |
| Jul 4, 8:00 PM EDT | Special Weather Statement | GYX | 45 min |
| Jul 4, 8:10 PM EDT | Areal Flood Advisory | GYX | 3 hr |
| Jul 7, 2:16 PM EDT | Mesoscale Discussion | SPC | 119 min |
| Jul 8, 3:24 AM EDT | Flash Flood Watch | GYX | 17 hr |
| Jul 10, 3:18 AM EDT | Flash Flood Watch | GYX | 16 hr |
| Jul 17, 4:20 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 18, 4:08 PM EDT | Mesoscale Discussion | SPC | 67 min |
| Jul 19, 4:10 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 19, 10:12 PM EDT | Mesoscale Discussion | SPC | 33 min |
| Jul 19, 10:53 PM EDT | Special Weather Statement | GYX | 52 min |
| Jul 19, 11:06 PM EDT | Severe Thunderstorm Warning | GYX | 39 min |
| Jul 19, 11:17 PM EDT | Areal Flood Advisory | GYX | 118 min |
| Jul 20, 2:08 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 23, 3:15 AM EDT | Flash Flood Watch | GYX | 12 hr |
| Jul 23, 3:29 AM EDT | Areal Flood Advisory | GYX | 8 hr |
| Aug 9, 3:45 AM EDT | Flash Flood Watch | GYX | 16 hr |
| Aug 22, 2:03 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 28, 8:16 PM EDT | Areal Flood Advisory | GYX | 3 hr |
| Aug 28, 9:18 PM EDT | Special Weather Statement | GYX | 27 min |
| Aug 28, 9:27 PM EDT | Areal Flood Advisory | GYX | 93 min |
| Aug 28, 9:48 PM EDT | Flash Flood Warning | GYX | 117 min |
| Aug 28, 10:21 PM EDT | Special Weather Statement | GYX | 39 min |
| Sep 1, 3:11 PM EDT | Flash Flood Watch | GYX | 35 hr |
| Sep 2, 4:21 AM EDT | Areal Flood Advisory | GYX | 3 hr |
| Sep 11, 1:30 PM EDT | Mesoscale Discussion | SPC | 60 min |
| Sep 11, 2:33 PM EDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Sep 11, 6:54 PM EDT | Mesoscale Discussion | SPC | 96 min |
| Sep 11, 8:08 PM EDT | Severe Thunderstorm Warning | GYX | 67 min |
| Sep 11, 9:44 PM EDT | Mesoscale Discussion | SPC | 61 min |
| Sep 12, 12:24 PM EDT | Mesoscale Discussion | SPC | 66 min |
| Sep 12, 1:03 PM EDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Sep 12, 3:07 PM EDT | Flash Flood Watch | GYX | 12 hr |
| Sep 12, 3:26 PM EDT | Mesoscale Discussion | SPC | 64 min |
| Sep 12, 5:19 PM EDT | Special Weather Statement | GYX | 56 min |
| Sep 12, 5:35 PM EDT | Severe Thunderstorm Warning | GYX | 55 min |
| Sep 16, 2:55 AM EDT | Frost Advisory | GYX | 30 hr |
| Sep 17, 2:32 PM EDT | Frost Advisory | GYX | 17 hr |
| Sep 23, 4:50 PM EDT | Frost Advisory | GYX | 10 hr |
| Sep 29, 5:17 AM EDT | Dense Fog Advisory | GYX | 5 hr |
| Sep 30, 6:12 AM EDT | Dense Fog Advisory | GYX | 3 hr |
| Oct 7, 9:51 AM EDT | Wind Advisory | GYX | 13 hr |
| Oct 7, 2:26 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Oct 7, 2:50 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Oct 7, 4:29 PM EDT | Mesoscale Discussion | SPC | 91 min |
| Oct 7, 4:30 PM EDT | Severe Thunderstorm Warning | GYX | 45 min |
| Oct 7, 5:11 PM EDT | Severe Thunderstorm Warning | GYX | 49 min |
| Oct 8, 3:04 PM EDT | Frost Advisory | GYX | 18 hr |
| Oct 31, 3:15 PM EDT | Wind Advisory | GYX | 28 hr |
| Nov 1, 11:10 AM EDT | Special Weather Statement | GYX | 50 min |
| Nov 18, 5:09 AM EST | Special Weather Statement | GYX | 51 min |
| Nov 18, 5:11 AM EST | Mesoscale Discussion | SPC | 3 hr |
| Nov 22, 6:17 AM EST | Winter Weather Advisory | GYX | 3 hr |
| Nov 23, 3:38 PM EST | Wind Advisory | GYX | 28 hr |
| Nov 23, 4:41 PM EST | Special Weather Statement | GYX | 2 hr |
| Nov 23, 4:43 PM EST | Special Weather Statement | GYX | 2 hr |
| Nov 26, 3:46 AM EST | Winter Weather Advisory | GYX | 27 hr |
| Nov 26, 2:37 PM EST | Flood Watch | GYX | 26 hr |
| Dec 5, 9:01 PM EST | Dense Fog Advisory | GYX | 10 hr |
| Dec 8, 3:17 PM EST | Winter Weather Advisory | GYX | 33 hr |
| Dec 9, 1:20 AM EST | Winter Weather Advisory | GYX | 23 hr |
| Dec 13, 3:07 AM EST | Winter Storm Watch | GYX | 25 hr |
| Dec 13, 3:28 PM EST | Winter Storm Warning | GYX | 46 hr |
| Dec 14, 8:16 PM EST | Mesoscale Discussion | SPC | 6 hr |
| Dec 15, 3:37 AM EST | Mesoscale Discussion | SPC | 6 hr |
| Dec 20, 3:57 AM EST | Winter Storm Watch | GYX | 24 hr |
| Dec 20, 3:57 AM EST | Winter Weather Advisory | GYX | 24 hr |
| Dec 21, 3:50 AM EST | Freezing Rain Advisory | GYX | 63 hr |
| Dec 28, 3:12 PM EST | Winter Storm Warning | GYX | 36 hr |
| Dec 28, 3:12 PM EST | Winter Weather Advisory | GYX | 36 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 | 12 |
| Severe Thunderstorm Watch | 10 |
| Mesoscale Discussion | 29 |
| Special Weather Statement | 19 |
| Flooding | |
| Flash Flood Warning | 5 |
| River Flood Warning | 1 |
| Flash Flood Watch | 9 |
| Flood Watch | 6 |
| Areal Flood Advisory | 14 |
| Winter | |
| Winter Storm Warning | 5 |
| Winter Storm Watch | 6 |
| Freezing Rain Advisory | 2 |
| Winter Weather Advisory | 13 |
| Cold | |
| Frost Advisory | 6 |
| Wind Chill Advisory | 1 |
| Wind and dust | |
| High Wind Warning | 1 |
| Wind Advisory | 6 |
| Fog and smoke | |
| Dense Fog Advisory | 6 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20122014
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.