Alert archive / New Hampshire / Strafford County
Weather alerts in Strafford County, New Hampshire, 2014
132 weather alerts in 2014, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Strafford County and its neighbors
Each county as a circle sized by its count in 2014. Tap one for its archive.
- Alerts
- 132
- Warnings
- 34
- Watches
- 24
- Advisories
- 35
- Busiest month
- July38 alerts
- Busiest day
- July 28, 20147 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Strafford County, 2014
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 20 | 16 | 20% | 6 | 100% | 22 min |
| Flash flood warnings | 2 | 1 | 50% | 0 |
Each office's whole area, 2014
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Gray, ME: tornado warnings | 6 | 1 | 83% | 2 | 50% | 1 min |
| NWS Gray, ME: severe thunderstorm warnings | 107 | 79 | 26% | 186 | 88% | 22 min |
| NWS Gray, ME: flash flood warnings | 31 | 20 | 35% | 46 | 89% | 68 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 1, 3:31 AM EST | Winter Storm Watch | GYX | 12 hr |
| Jan 1, 3:20 PM EST | Winter Storm Warning | GYX | 43 hr |
| Jan 2, 3:24 AM EST | Wind Chill Advisory | GYX | 35 hr |
| Jan 5, 4:18 AM EST | Winter Weather Advisory | GYX | 24 hr |
| Jan 5, 6:22 PM EST | Freezing Rain Advisory | GYX | 18 hr |
| Jan 6, 9:30 AM EST | Dense Fog Advisory | GYX | 5 hr |
| Jan 10, 3:54 AM EST | Flood Watch | GYX | 63 hr |
| Jan 10, 2:52 PM EST | Freezing Rain Advisory | GYX | 22 hr |
| Jan 11, 4:13 AM EST | Mesoscale Discussion | SPC | 4 hr |
| Jan 18, 3:08 AM EST | Winter Weather Advisory | GYX | 23 hr |
| Jan 18, 1:56 PM EST | Winter Storm Warning | GYX | 7 hr |
| Jan 21, 9:29 AM EST | Winter Weather Advisory | GYX | 14 hr |
| Jan 22, 2:18 PM EST | Wind Chill Advisory | GYX | 18 hr |
| Feb 3, 3:01 PM EST | Winter Storm Watch | GYX | 12 hr |
| Feb 4, 3:04 AM EST | Winter Storm Warning | GYX | 42 hr |
| Feb 5, 11:35 AM EST | Mesoscale Discussion | SPC | 5 hr |
| Feb 9, 5:24 PM EST | Special Weather Statement | GYX | 96 min |
| Feb 11, 3:18 PM EST | Winter Storm Watch | GYX | 24 hr |
| Feb 12, 3:14 PM EST | Winter Storm Warning | GYX | 43 hr |
| Feb 13, 8:00 AM EST | Mesoscale Discussion | SPC | 5 hr |
| Feb 13, 1:23 PM EST | Mesoscale Discussion | SPC | 5 hr |
| Feb 15, 3:28 AM EST | Winter Weather Advisory | GYX | 24 hr |
| Feb 17, 3:28 AM EST | Winter Storm Watch | GYX | 12 hr |
| Feb 17, 3:01 PM EST | Winter Storm Warning | GYX | 36 hr |
| Feb 18, 1:14 PM EST | Mesoscale Discussion | SPC | 5 hr |
| Feb 19, 10:35 AM EST | Mesoscale Discussion | SPC | 6 hr |
| Feb 20, 3:44 AM EST | Winter Weather Advisory | GYX | 34 hr |
| Feb 21, 5:13 PM EST | Special Weather Statement | GYX | 47 min |
| Mar 10, 3:51 AM EDT | Winter Storm Watch | GYX | 35 hr |
| Mar 11, 3:29 AM EDT | Winter Storm Warning | GYX | 57 hr |
| Mar 11, 3:20 PM EDT | Winter Weather Advisory | GYX | 45 hr |
| Mar 19, 3:08 AM EDT | Winter Weather Advisory | GYX | 32 hr |
| Mar 25, 3:35 PM EDT | Wind Advisory | GYX | 31 hr |
| Mar 28, 3:29 PM EDT | Flood Watch | GYX | 67 hr |
| Mar 29, 3:31 PM EDT | Winter Weather Advisory | GYX | 44 hr |
| Mar 30, 5:06 AM EDT | Areal Flood Advisory | GYX | 48 days |
| Mar 30, 7:15 AM EDT | Areal Flood Warning | GYX | 6 hr |
| Apr 1, 3:29 AM EDT | River Flood Warning | GYX | 44 hr |
| Apr 6, 4:04 PM EDT | Flood Watch | GYX | 44 hr |
| Apr 13, 3:44 AM EDT | Flood Watch | GYX | 66 hr |
| May 1, 9:39 PM EDT | Special Weather Statement | GYX | 21 min |
| May 23, 7:43 PM EDT | Areal Flood Advisory | GYX | 3 hr |
| Jun 25, 11:51 AM EDT | Flash Flood Watch | GYX | 19 hr |
| Jun 25, 4:19 PM EDT | Severe Thunderstorm Warning | GYX | 41 min |
| Jun 25, 5:13 PM EDT | Areal Flood Advisory | GYX | 3 hr |
| Jun 25, 5:44 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Jun 25, 8:06 PM EDT | Areal Flood Warning | GYX | 6 hr |
| Jul 2, 12:45 PM EDT | Mesoscale Discussion | SPC | 60 min |
| Jul 2, 1:22 PM EDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Jul 2, 2:27 PM EDT | Flash Flood Watch | GYX | 37 hr |
| Jul 2, 3:48 PM EDT | Severe Thunderstorm Warning | GYX | 42 min |
| Jul 2, 4:27 PM EDT | Mesoscale Discussion | SPC | 93 min |
| Jul 3, 1:44 PM EDT | Special Weather Statement | GYX | 31 min |
| Jul 3, 2:12 PM EDT | Severe Thunderstorm Watch | SPC | 10 hr |
| Jul 3, 3:55 PM EDT | Severe Thunderstorm Warning | GYX | 35 min |
| Jul 3, 4:26 PM EDT | Severe Thunderstorm Warning | GYX | 49 min |
| Jul 3, 4:55 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 3, 7:59 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 3, 8:37 PM EDT | Severe Thunderstorm Warning | GYX | 53 min |
| Jul 3, 9:21 PM EDT | Severe Thunderstorm Warning | GYX | 54 min |
| Jul 3, 9:25 PM EDT | Areal Flood Advisory | GYX | 3 hr |
| Jul 3, 9:46 PM EDT | Mesoscale Discussion | SPC | 29 min |
| Jul 4, 6:16 AM EDT | Flash Flood Watch | GYX | 23 hr |
| Jul 7, 3:54 PM EDT | Severe Thunderstorm Warning | GYX | 36 min |
| Jul 7, 9:16 PM EDT | Special Weather Statement | GYX | 44 min |
| Jul 8, 1:36 PM EDT | Mesoscale Discussion | SPC | 84 min |
| Jul 8, 9:55 PM EDT | Mesoscale Discussion | SPC | 95 min |
| Jul 9, 10:53 PM EDT | Special Weather Statement | GYX | 37 min |
| Jul 14, 3:55 PM EDT | Flash Flood Watch | GYX | 51 hr |
| Jul 15, 3:57 PM EDT | Severe Thunderstorm Warning | GYX | 48 min |
| Jul 15, 4:14 PM EDT | Areal Flood Advisory | GYX | 3 hr |
| Jul 15, 5:12 PM EDT | Areal Flood Advisory | GYX | 3 hr |
| Jul 15, 11:04 PM EDT | Severe Thunderstorm Warning | GYX | 56 min |
| Jul 15, 11:41 PM EDT | Flash Flood Warning | GYX | 3 hr |
| Jul 23, 2:17 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 23, 4:25 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 23, 6:16 PM EDT | Mesoscale Discussion | SPC | 89 min |
| Jul 23, 7:23 PM EDT | Special Weather Statement | GYX | 67 min |
| Jul 28, 1:37 PM EDT | Mesoscale Discussion | SPC | 53 min |
| Jul 28, 2:07 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 28, 2:24 PM EDT | Severe Thunderstorm Warning | GYX | 51 min |
| Jul 28, 5:19 PM EDT | Severe Thunderstorm Warning | GYX | 41 min |
| Jul 28, 6:23 PM EDT | Severe Thunderstorm Warning | GYX | 52 min |
| Jul 28, 6:35 PM EDT | Severe Thunderstorm Warning | GYX | 40 min |
| Jul 28, 6:42 PM EDT | Severe Thunderstorm Warning | GYX | 38 min |
| Aug 1, 2:07 PM EDT | Special Weather Statement | GYX | 23 min |
| Aug 1, 2:28 PM EDT | Special Weather Statement | GYX | 32 min |
| Aug 1, 3:02 PM EDT | Special Weather Statement | GYX | 28 min |
| Aug 1, 3:14 PM EDT | Severe Thunderstorm Warning | GYX | 61 min |
| Aug 5, 3:01 PM EDT | Mesoscale Discussion | SPC | 59 min |
| Aug 5, 8:22 PM EDT | Severe Thunderstorm Warning | GYX | 38 min |
| Aug 6, 7:35 PM EDT | Special Weather Statement | GYX | 25 min |
| Aug 7, 1:44 PM EDT | Special Weather Statement | GYX | 31 min |
| Aug 7, 1:47 PM EDT | Severe Thunderstorm Warning | GYX | 43 min |
| Aug 7, 2:29 PM EDT | Severe Thunderstorm Warning | GYX | 46 min |
| Aug 7, 5:45 PM EDT | Special Weather Statement | GYX | 45 min |
| Aug 7, 6:01 PM EDT | Severe Thunderstorm Warning | GYX | 25 min |
| Aug 13, 5:25 PM EDT | Flash Flood Warning | GYX | 3 hr |
| Aug 13, 5:47 PM EDT | Special Weather Statement | GYX | 58 min |
| Aug 13, 6:34 PM EDT | Special Weather Statement | GYX | 56 min |
| Aug 13, 6:51 PM EDT | Areal Flood Warning | GYX | 3 hr |
| Aug 22, 12:34 AM EDT | Areal Flood Advisory | GYX | 4 hr |
| Aug 31, 8:04 PM EDT | Areal Flood Advisory | GYX | 56 min |
| Sep 2, 2:01 PM EDT | Special Weather Statement | GYX | 29 min |
| Sep 2, 2:35 PM EDT | Special Weather Statement | GYX | 40 min |
| Sep 6, 12:31 PM EDT | Mesoscale Discussion | SPC | 89 min |
| Sep 6, 1:22 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Sep 6, 3:18 PM EDT | Severe Thunderstorm Warning | GYX | 27 min |
| Sep 6, 4:20 PM EDT | Mesoscale Discussion | SPC | 85 min |
| Sep 18, 2:50 PM EDT | Frost Advisory | GYX | 16 hr |
| Sep 21, 8:24 PM EDT | Dense Fog Advisory | GYX | 10 hr |
| Oct 5, 2:58 PM EDT | Frost Advisory | GYX | 17 hr |
| Oct 11, 2:49 PM EDT | Freeze Warning | GYX | 16 hr |
| Oct 16, 7:31 AM EDT | Dense Fog Advisory | GYX | 2 hr |
| Oct 16, 12:18 PM EDT | Flash Flood Watch | GYX | 18 hr |
| Oct 21, 3:02 PM EDT | Flood Watch | GYX | 57 hr |
| Oct 29, 5:23 AM EDT | Dense Fog Advisory | GYX | 4 hr |
| Nov 1, 3:54 PM EDT | Wind Advisory | GYX | 27 hr |
| Nov 11, 11:26 PM EST | Dense Fog Advisory | GYX | 12 hr |
| Nov 13, 3:31 PM EST | Winter Weather Advisory | GYX | 16 hr |
| Nov 24, 3:34 PM EST | Winter Storm Watch | GYX | 23 hr |
| Nov 25, 2:37 PM EST | Winter Storm Warning | GYX | 40 hr |
| Dec 2, 3:15 AM EST | Winter Weather Advisory | GYX | 35 hr |
| Dec 3, 2:01 AM EST | Mesoscale Discussion | SPC | 3 hr |
| Dec 3, 3:49 PM EST | Dense Fog Advisory | GYX | 3 hr |
| Dec 5, 3:35 AM EST | Winter Weather Advisory | GYX | 38 hr |
| Dec 6, 2:12 AM EST | Mesoscale Discussion | SPC | 4 hr |
| Dec 7, 2:35 PM EST | Winter Storm Watch | GYX | 37 hr |
| Dec 8, 3:15 PM EST | Flood Watch | GYX | 36 hr |
| Dec 9, 3:23 AM EST | Winter Weather Advisory | GYX | 17 hr |
| Dec 9, 5:38 PM EST | Areal Flood Advisory | GYX | 3 hr |
| Dec 23, 4:16 PM EST | Flood Watch | GYX | 42 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 | 20 |
| Severe Thunderstorm Watch | 5 |
| Mesoscale Discussion | 22 |
| Special Weather Statement | 17 |
| Flooding | |
| Areal Flood Warning | 3 |
| Flash Flood Warning | 2 |
| River Flood Warning | 1 |
| Flash Flood Watch | 5 |
| Flood Watch | 7 |
| Areal Flood Advisory | 9 |
| Winter | |
| Winter Storm Warning | 7 |
| Winter Storm Watch | 7 |
| Freezing Rain Advisory | 2 |
| Winter Weather Advisory | 12 |
| Cold | |
| Freeze Warning | 1 |
| Frost Advisory | 2 |
| Wind Chill Advisory | 2 |
| Wind and dust | |
| Wind Advisory | 2 |
| 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 archive20132015
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.