Alert archive / Maine / Knox County
Weather alerts in Knox County, Maine, 2015
100 weather alerts in 2015, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Knox County and its neighbors
Each county as a circle sized by its count in 2015. Tap one for its archive.
- Alerts
- 100
- Warnings
- 15
- Watches
- 18
- Advisories
- 46
- Busiest month
- January23 alerts
- Busiest day
- January 25, 20154 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Knox County, 2015
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 5 | 3 | 40% | 0 | ||
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2015
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Gray, ME: tornado warnings | 3 | 0 | 100% | 1 | 0% | |
| NWS Gray, ME: severe thunderstorm warnings | 163 | 132 | 19% | 255 | 89% | 22 min |
| NWS Gray, ME: flash flood warnings | 14 | 8 | 43% | 19 | 74% | 43 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 2, 3:44 AM EST | Winter Storm Watch | GYX | 24 hr |
| Jan 3, 3:35 AM EST | Winter Weather Advisory | GYX | 31 hr |
| Jan 4, 3:08 PM EST | Wind Chill Advisory | GYX | 42 hr |
| Jan 4, 4:08 PM EST | Dense Fog Advisory | GYX | 6 hr |
| Jan 5, 3:30 AM EST | Wind Advisory | GYX | 14 hr |
| Jan 6, 3:40 PM EST | Wind Chill Advisory | GYX | 42 hr |
| Jan 16, 1:30 PM EST | Special Weather Statement | GYX | 45 min |
| Jan 16, 2:13 PM EST | Special Weather Statement | GYX | 32 min |
| Jan 22, 10:35 AM EST | Coastal Flood Statement | GYX | 2 hr |
| Jan 23, 3:45 AM EST | Winter Storm Watch | GYX | 12 hr |
| Jan 23, 3:17 PM EST | Winter Storm Warning | GYX | 31 hr |
| Jan 24, 11:53 AM EST | Mesoscale Discussion | SPC | 6 hr |
| Jan 25, 3:59 AM EST | Winter Storm Watch | GYX | 12 hr |
| Jan 25, 3:46 PM EST | Blizzard Warning | GYX | 54 hr |
| Jan 25, 3:46 PM EST | Winter Storm Warning | GYX | 60 hr |
| Jan 25, 3:59 PM EST | Coastal Flood Watch | GYX | 21 hr |
| Jan 26, 1:00 PM EST | Coastal Flood Advisory | GYX | 29 hr |
| Jan 27, 4:28 AM EST | Mesoscale Discussion | SPC | 5 hr |
| Jan 27, 10:24 AM EST | Mesoscale Discussion | SPC | 5 hr |
| Jan 28, 3:04 PM EST | Winter Storm Watch | GYX | 13 hr |
| Jan 29, 3:52 AM EST | Winter Storm Warning | GYX | 54 hr |
| Jan 30, 9:58 PM EST | Mesoscale Discussion | SPC | 6 hr |
| Jan 31, 3:06 PM EST | Winter Storm Watch | GYX | 21 hr |
| Feb 1, 3:32 AM EST | Winter Storm Warning | GYX | 45 hr |
| Feb 2, 5:09 AM EST | Mesoscale Discussion | SPC | 6 hr |
| Feb 2, 2:14 PM EST | Mesoscale Discussion | SPC | 5 hr |
| Feb 4, 3:16 PM EST | Winter Weather Advisory | GYX | 20 hr |
| Feb 5, 3:51 PM EST | Wind Chill Advisory | GYX | 17 hr |
| Feb 6, 3:34 PM EST | Winter Storm Watch | GYX | 36 hr |
| Feb 8, 3:42 AM EST | Winter Weather Advisory | GYX | 44 hr |
| Feb 12, 3:57 PM EST | Blizzard Watch | GYX | 24 hr |
| Feb 13, 3:36 PM EST | Blizzard Warning | GYX | 47 hr |
| Feb 14, 10:33 PM EST | Winter Weather Advisory | GYX | 20 hr |
| Feb 15, 9:05 AM EST | Wind Chill Advisory | GYX | 27 hr |
| Feb 17, 3:08 PM EST | Winter Storm Watch | GYX | 25 hr |
| Feb 18, 4:24 PM EST | Winter Storm Warning | GYX | 23 hr |
| Feb 18, 10:59 PM EST | Mesoscale Discussion | SPC | 5 hr |
| Feb 19, 10:06 AM EST | Coastal Flood Statement | GYX | 114 min |
| Feb 20, 4:03 PM EST | Winter Storm Watch | GYX | 11 hr |
| Feb 21, 3:03 AM EST | Winter Weather Advisory | GYX | 27 hr |
| Feb 22, 3:23 PM EST | Wind Chill Advisory | GYX | 39 hr |
| Feb 24, 3:20 PM EST | Winter Weather Advisory | GYX | 17 hr |
| Feb 25, 8:10 AM EST | Winter Storm Warning | GYX | 4 hr |
| Mar 3, 3:20 AM EST | Winter Weather Advisory | GYX | 24 hr |
| Mar 13, 3:20 PM EDT | Winter Storm Watch | GYX | 24 hr |
| Mar 13, 3:20 PM EDT | Winter Weather Advisory | GYX | 37 hr |
| Mar 17, 3:23 PM EDT | Wind Advisory | GYX | 26 hr |
| Mar 21, 3:26 PM EDT | Wind Advisory | GYX | 29 hr |
| Mar 26, 6:53 PM EDT | Dense Fog Advisory | GYX | 3 hr |
| Apr 10, 7:27 PM EDT | Dense Fog Advisory | GYX | 5 hr |
| Apr 18, 3:06 PM EDT | Coastal Flood Watch | GYX | 36 hr |
| Apr 19, 3:19 AM EDT | Flood Watch | GYX | 62 hr |
| Apr 20, 2:58 AM EDT | Coastal Flood Advisory | GYX | 24 hr |
| May 20, 2:25 PM EDT | Frost Advisory | GYX | 16 hr |
| May 28, 11:54 AM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| May 29, 9:17 PM EDT | Dense Fog Advisory | GYX | 12 hr |
| Jun 9, 8:58 PM EDT | Dense Fog Advisory | GYX | 6 hr |
| Jun 27, 3:13 PM EDT | High Surf Advisory | GYX | 29 hr |
| Jun 27, 3:20 PM EDT | Wind Advisory | GYX | 24 hr |
| Jul 15, 5:21 AM EDT | Dense Fog Advisory | GYX | 3 hr |
| Jul 19, 3:33 AM EDT | Special Weather Statement | GYX | 42 min |
| Jul 24, 4:11 PM EDT | Special Weather Statement | GYX | 34 min |
| Jul 24, 4:19 PM EDT | Severe Thunderstorm Warning | GYX | 26 min |
| Jul 27, 12:36 AM EDT | Dense Fog Advisory | GYX | 7 hr |
| Jul 28, 1:40 AM EDT | Special Weather Statement | GYX | 50 min |
| Jul 28, 4:46 PM EDT | Special Weather Statement | GYX | 44 min |
| Jul 28, 6:57 PM EDT | Severe Thunderstorm Warning | GYX | 31 min |
| Aug 1, 3:51 PM EDT | Severe Thunderstorm Warning | GYX | 54 min |
| Aug 1, 4:38 PM EDT | Severe Thunderstorm Warning | GYX | 26 min |
| Aug 4, 11:15 AM EDT | Mesoscale Discussion | SPC | 3 hr |
| Aug 4, 12:18 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Aug 4, 2:21 PM EDT | Mesoscale Discussion | SPC | 84 min |
| Aug 4, 4:14 PM EDT | Mesoscale Discussion | SPC | 91 min |
| Aug 5, 4:32 PM EDT | Special Weather Statement | GYX | 28 min |
| Aug 12, 6:49 PM EDT | Areal Flood Advisory | GYX | 116 min |
| Aug 12, 9:25 PM EDT | Severe Thunderstorm Warning | GYX | 50 min |
| Aug 15, 5:09 PM EDT | Special Weather Statement | GYX | 21 min |
| Aug 20, 7:53 PM EDT | Dense Fog Advisory | GYX | 13 hr |
| Aug 21, 9:10 PM EDT | Areal Flood Advisory | GYX | 110 min |
| Sep 29, 3:29 AM EDT | Flood Watch | GYX | 36 hr |
| Sep 30, 12:49 PM EDT | Coastal Flood Advisory | GYX | 2 hr |
| Sep 30, 3:41 PM EDT | Areal Flood Warning | GYX | 3 hr |
| Oct 4, 3:13 PM EDT | Frost Advisory | GYX | 17 hr |
| Oct 5, 3:21 AM EDT | High Surf Advisory | GYX | 39 hr |
| Oct 17, 2:55 PM EDT | Freeze Warning | GYX | 18 hr |
| Oct 27, 3:49 PM EDT | Wind Advisory | GYX | 42 hr |
| Oct 28, 3:44 AM EDT | Coastal Flood Watch | GYX | 24 hr |
| Oct 28, 7:52 PM EDT | Coastal Flood Advisory | GYX | 7 hr |
| Oct 29, 4:07 AM EDT | Coastal Flood Advisory | GYX | 11 hr |
| Nov 22, 2:56 PM EST | Winter Weather Advisory | GYX | 16 hr |
| Dec 10, 7:41 PM EST | Dense Fog Advisory | GYX | 15 hr |
| Dec 11, 11:03 AM EST | Dense Fog Advisory | GYX | 117 min |
| Dec 14, 6:04 PM EST | Dense Fog Advisory | GYX | 4 hr |
| Dec 16, 3:19 PM EST | Freezing Rain Advisory | GYX | 21 hr |
| Dec 22, 9:20 PM EST | Dense Fog Advisory | GYX | 24 hr |
| Dec 25, 3:01 PM EST | Freezing Rain Advisory | GYX | 43 hr |
| Dec 27, 3:37 PM EST | Winter Storm Watch | GYX | 24 hr |
| Dec 27, 3:37 PM EST | Winter Weather Advisory | GYX | 56 hr |
| Dec 29, 4:47 AM EST | Mesoscale Discussion | SPC | 6 hr |
| Dec 30, 3:39 AM EST | Freezing Rain Advisory | GYX | 23 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 | 5 |
| Severe Thunderstorm Watch | 2 |
| Mesoscale Discussion | 11 |
| Special Weather Statement | 8 |
| Flooding | |
| Areal Flood Warning | 1 |
| Flood Watch | 2 |
| Areal Flood Advisory | 2 |
| Winter | |
| Blizzard Warning | 2 |
| Winter Storm Warning | 6 |
| Blizzard Watch | 1 |
| Winter Storm Watch | 10 |
| Freezing Rain Advisory | 3 |
| Winter Weather Advisory | 10 |
| Cold | |
| Freeze Warning | 1 |
| Frost Advisory | 2 |
| Wind Chill Advisory | 5 |
| Wind and dust | |
| Wind Advisory | 5 |
| Fog and smoke | |
| Dense Fog Advisory | 12 |
| Coast and beach | |
| Coastal Flood Watch | 3 |
| Coastal Flood Advisory | 5 |
| High Surf Advisory | 2 |
| Coastal Flood Statement | 2 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20142016
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.