Alert archive / Maine / Knox County
Weather alerts in Knox County, Maine, 2025
84 weather alerts in 2025, 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 2025. Tap one for its archive.
- Alerts
- 84
- Warnings
- 12
- Watches
- 9
- Advisories
- 36
- Busiest month
- July13 alerts
- Busiest day
- April 20, 20253 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, 2025
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 1 | 1 | 0% | 0 | ||
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2025
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Gray, ME: severe thunderstorm warnings | 59 | 39 | 34% | 176 | 74% | 18 min |
| NWS Gray, ME: flash flood warnings | 7 | 5 | 29% | 12 | 67% | 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 18, 3:08 AM EST | Winter Storm Watch | GYX | 24 hr |
| Jan 19, 3:23 AM EST | Winter Storm Warning | GYX | 27 hr |
| Jan 19, 10:23 PM EST | Mesoscale Discussion | SPC | 6 hr |
| Jan 28, 9:00 AM EST | Snow Squall Warning | GYX | 45 min |
| Jan 28, 7:41 PM EST | Winter Weather Advisory | GYX | 16 hr |
| Feb 5, 2:20 PM EST | Winter Weather Advisory | GYX | 32 hr |
| Feb 7, 8:33 AM EST | Snow Squall Warning | GYX | 57 min |
| Feb 7, 9:23 AM EST | Snow Squall Warning | GYX | 67 min |
| Feb 8, 2:46 AM EST | Winter Weather Advisory | GYX | 30 hr |
| Feb 11, 2:25 PM EST | Winter Weather Advisory | GYX | 52 hr |
| Feb 13, 3:11 AM EST | Wind Advisory | GYX | 40 hr |
| Feb 13, 8:15 AM EST | Mesoscale Discussion | SPC | 6 hr |
| Feb 14, 8:52 AM EST | Winter Storm Watch | GYX | 18 hr |
| Feb 14, 3:08 PM EST | Winter Storm Warning | GYX | 62 hr |
| Feb 15, 2:57 AM EST | Winter Weather Advisory | GYX | 21 hr |
| Feb 16, 8:28 AM EST | Mesoscale Discussion | SPC | 6 hr |
| Feb 16, 1:24 PM EST | Wind Advisory | GYX | 50 hr |
| Mar 5, 2:46 AM EST | Wind Advisory | GYX | 28 hr |
| Mar 6, 2:59 PM EST | Wind Advisory | GYX | 30 hr |
| Mar 6, 4:34 PM EST | Dense Fog Advisory | GYX | 5 hr |
| Mar 19, 8:30 PM EDT | Dense Fog Advisory | GYX | 13 hr |
| Mar 23, 3:15 PM EDT | Winter Weather Advisory | GYX | 31 hr |
| Mar 24, 2:46 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Mar 28, 3:24 PM EDT | Winter Weather Advisory | GYX | 63 hr |
| Mar 31, 8:05 PM EDT | Dense Fog Advisory | GYX | 4 hr |
| Apr 20, 3:13 AM EDT | Wind Advisory | GYX | 15 hr |
| Apr 20, 8:17 AM EDT | Red Flag Warning | GYX | 10 hr |
| Apr 20, 8:19 AM EDT | Red Flag Warning | CAR | 10 hr |
| Apr 28, 9:15 PM EDT | Coastal Flood Statement | GYX | 5 hr |
| Apr 30, 2:32 PM EDT | Frost Advisory | GYX | 17 hr |
| May 8, 4:56 AM EDT | Dense Fog Advisory | GYX | 3 hr |
| May 11, 2:32 PM EDT | Frost Advisory | GYX | 15 hr |
| May 15, 9:32 PM EDT | Dense Fog Advisory | GYX | 11 hr |
| May 21, 3:42 PM EDT | Wind Advisory | GYX | 35 hr |
| May 26, 3:32 AM EDT | Beach Hazards Statement | GYX | 13 hr |
| Jun 1, 4:31 AM EDT | High Surf Advisory | GYX | 15 hr |
| Jun 8, 3:01 AM EDT | Beach Hazards Statement | GYX | 17 hr |
| Jun 18, 9:50 PM EDT | Dense Fog Advisory | GYX | 10 hr |
| Jun 20, 2:41 PM EDT | Beach Hazards Statement | GYX | 29 hr |
| Jun 21, 2:40 AM EDT | Extreme Heat Watch | GYX | 60 hr |
| Jun 21, 9:25 PM EDT | Beach Hazards Statement | GYX | 23 hr |
| Jun 23, 3:02 PM EDT | Heat Advisory | GYX | 29 hr |
| Jul 1, 4:23 AM EDT | Dense Fog Advisory | GYX | 5 hr |
| Jul 3, 10:07 AM EDT | Mesoscale Discussion | SPC | 113 min |
| Jul 3, 10:38 AM EDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Jul 3, 12:17 PM EDT | Mesoscale Discussion | SPC | 118 min |
| Jul 5, 2:08 AM EDT | Beach Hazards Statement | GYX | 18 hr |
| Jul 5, 8:52 PM EDT | Beach Hazards Statement | GYX | 23 hr |
| Jul 11, 1:45 AM EDT | Beach Hazards Statement | GYX | 18 hr |
| Jul 15, 4:16 AM EDT | Dense Fog Advisory | GYX | 4 hr |
| Jul 16, 9:41 PM EDT | Dense Fog Advisory | GYX | 10 hr |
| Jul 18, 1:54 PM EDT | Beach Hazards Statement | GYX | 30 hr |
| Jul 24, 1:35 PM EDT | Beach Hazards Statement | GYX | 30 hr |
| Jul 25, 7:26 PM EDT | Beach Hazards Statement | GYX | 24 hr |
| Jul 28, 3:55 AM EDT | Dense Fog Advisory | GYX | 5 hr |
| Aug 1, 1:21 PM EDT | Beach Hazards Statement | GYX | 29 hr |
| Aug 2, 9:53 PM EDT | Beach Hazards Statement | GYX | 22 hr |
| Aug 17, 1:41 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 17, 3:57 PM EDT | Severe Thunderstorm Warning | GYX | 29 min |
| Aug 20, 1:51 PM EDT | Rip Current Statement | GYX | 30 hr |
| Aug 20, 1:51 PM EDT | High Surf Advisory | GYX | 3 days |
| Aug 21, 1:27 PM EDT | Coastal Flood Advisory | GYX | 36 hr |
| Sep 18, 2:07 PM EDT | Fire Weather Watch | CAR | 12 hr |
| Sep 20, 1:36 AM EDT | Frost Advisory | GYX | 30 hr |
| Sep 23, 1:11 PM EDT | Rip Current Statement | GYX | 30 hr |
| Sep 29, 1:32 PM EDT | Rip Current Statement | GYX | 30 hr |
| Oct 1, 1:17 AM EDT | High Surf Advisory | GYX | 19 hr |
| Oct 2, 1:14 AM EDT | Rip Current Statement | GYX | 16 hr |
| Oct 8, 2:07 PM EDT | Freeze Watch | GYX | 11 hr |
| Oct 9, 12:47 AM EDT | Freeze Warning | GYX | 31 hr |
| Oct 11, 1:25 PM EDT | Rip Current Statement | GYX | 30 hr |
| Oct 12, 2:03 AM EDT | High Surf Advisory | GYX | 66 hr |
| Nov 3, 12:05 PM EST | Wind Advisory | GYX | 30 hr |
| Nov 5, 12:22 PM EST | Wind Advisory | GYX | 18 hr |
| Nov 7, 12:13 AM EST | Coastal Flood Statement | GYX | 13 hr |
| Nov 30, 1:01 PM EST | Winter Storm Watch | GYX | 24 hr |
| Dec 1, 12:36 PM EST | Winter Storm Warning | GYX | 39 hr |
| Dec 2, 8:12 PM EST | Mesoscale Discussion | SPC | 6 hr |
| Dec 16, 11:40 PM EST | High Wind Watch | GYX | 24 hr |
| Dec 17, 11:58 PM EST | Wind Advisory | GYX | 56 hr |
| Dec 18, 1:02 PM EST | High Wind Warning | GYX | 30 hr |
| Dec 21, 11:32 PM EST | Winter Storm Watch | GYX | 23 hr |
| Dec 22, 10:53 PM EST | Winter Storm Warning | GYX | 38 hr |
| Dec 27, 12:23 PM EST | Winter Weather Advisory | GYX | 55 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 | 1 |
| Severe Thunderstorm Watch | 1 |
| Mesoscale Discussion | 8 |
| Winter | |
| Snow Squall Warning | 3 |
| Winter Storm Warning | 4 |
| Winter Storm Watch | 4 |
| Winter Weather Advisory | 8 |
| Heat | |
| Extreme Heat Watch | 1 |
| Heat Advisory | 1 |
| Cold | |
| Freeze Warning | 1 |
| Freeze Watch | 1 |
| Frost Advisory | 3 |
| Wind and dust | |
| High Wind Warning | 1 |
| High Wind Watch | 1 |
| Wind Advisory | 9 |
| Fire | |
| Red Flag Warning | 2 |
| Fire Weather Watch | 1 |
| Fog and smoke | |
| Dense Fog Advisory | 10 |
| Coast and beach | |
| Coastal Flood Advisory | 1 |
| High Surf Advisory | 4 |
| Beach Hazards Statement | 12 |
| Coastal Flood Statement | 2 |
| Rip Current Statement | 5 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20242026
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.