Alert archive / Maine / Somerset County
Weather alerts in Somerset County, Maine, 2023
203 weather alerts in 2023, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Somerset County and its neighbors
Each county as a circle sized by its count in 2023. Tap one for its archive.
- Alerts
- 203
- Warnings
- 51
- Watches
- 32
- Advisories
- 100
- Busiest month
- July37 alerts
- Busiest day
- August 13, 202312 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Somerset County, 2023
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 9 | 4 | 56% | 10 | 50% | 6 min |
| Flash flood warnings | 13 | 4 | 69% | 4 | 75% | 140 min |
Each office's whole area, 2023
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Caribou, ME: severe thunderstorm warnings | 34 | 12 | 65% | 36 | 69% | 22 min |
| NWS Caribou, ME: flash flood warnings | 15 | 6 | 60% | 27 | 33% | 52 min |
| NWS Gray, ME: tornado warnings | 5 | 1 | 80% | 3 | 67% | 16 min |
| NWS Gray, ME: severe thunderstorm warnings | 64 | 45 | 30% | 180 | 68% | 16 min |
| NWS Gray, ME: flash flood warnings | 87 | 49 | 44% | 173 | 85% | 131 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 4, 3:26 AM EST | Winter Weather Advisory | GYX | 36 hr |
| Jan 4, 4:20 PM EST | Winter Weather Advisory | CAR | 23 hr |
| Jan 11, 3:31 PM EST | Winter Weather Advisory | GYX | 39 hr |
| Jan 11, 3:36 PM EST | Winter Storm Watch | CAR | 13 hr |
| Jan 11, 3:36 PM EST | Winter Weather Advisory | CAR | 39 hr |
| Jan 12, 4:22 AM EST | Winter Storm Warning | CAR | 38 hr |
| Jan 12, 2:48 PM EST | Flood Watch | GYX | 21 hr |
| Jan 14, 3:05 PM EST | Winter Weather Advisory | CAR | 60 hr |
| Jan 14, 3:16 PM EST | Winter Weather Advisory | GYX | 60 hr |
| Jan 19, 3:15 AM EST | Winter Weather Advisory | GYX | 40 hr |
| Jan 21, 2:59 AM EST | Winter Storm Watch | GYX | 25 hr |
| Jan 22, 3:51 AM EST | Winter Storm Warning | GYX | 40 hr |
| Jan 22, 3:51 AM EST | Winter Weather Advisory | GYX | 40 hr |
| Jan 24, 3:20 AM EST | Winter Storm Watch | CAR | 24 hr |
| Jan 24, 3:21 AM EST | Winter Storm Watch | GYX | 13 hr |
| Jan 24, 3:37 PM EST | Winter Storm Warning | CAR | 46 hr |
| Jan 24, 3:59 PM EST | Winter Storm Warning | GYX | 47 hr |
| Jan 25, 8:07 PM EST | Mesoscale Discussion | SPC | 6 hr |
| Jan 28, 2:17 PM EST | Winter Weather Advisory | CAR | 31 hr |
| Jan 28, 2:56 PM EST | Winter Weather Advisory | GYX | 28 hr |
| Feb 1, 2:34 AM EST | Wind Chill Watch | CAR | 24 hr |
| Feb 1, 3:31 AM EST | Wind Chill Watch | GYX | 24 hr |
| Feb 2, 2:41 AM EST | Wind Chill Warning | CAR | 60 hr |
| Feb 2, 3:31 AM EST | Wind Chill Warning | GYX | 63 hr |
| Feb 3, 12:04 AM EST | Special Weather Statement | GYX | 116 min |
| Feb 3, 1:45 AM EST | Special Weather Statement | GYX | 60 min |
| Feb 4, 2:54 PM EST | Wind Chill Advisory | CAR | 4 hr |
| Feb 8, 3:14 PM EST | Winter Weather Advisory | CAR | 47 hr |
| Feb 8, 3:15 PM EST | Winter Weather Advisory | GYX | 36 hr |
| Feb 15, 3:26 AM EST | Wind Advisory | GYX | 28 hr |
| Feb 16, 3:02 AM EST | Winter Weather Advisory | GYX | 40 hr |
| Feb 16, 3:09 AM EST | Winter Weather Advisory | CAR | 41 hr |
| Feb 16, 2:49 PM EST | Winter Storm Warning | CAR | 30 hr |
| Feb 21, 3:22 AM EST | Winter Storm Watch | GYX | 24 hr |
| Feb 22, 3:07 AM EST | Winter Weather Advisory | CAR | 33 hr |
| Feb 22, 3:50 AM EST | Winter Storm Warning | GYX | 30 hr |
| Feb 22, 3:50 AM EST | Winter Weather Advisory | GYX | 30 hr |
| Feb 23, 2:59 PM EST | Winter Weather Advisory | GYX | 12 hr |
| Feb 23, 3:52 PM EST | Winter Weather Advisory | CAR | 18 hr |
| Feb 24, 3:30 AM EST | Wind Chill Advisory | GYX | 28 hr |
| Feb 26, 2:12 PM EST | Winter Storm Watch | GYX | 13 hr |
| Feb 27, 3:10 AM EST | Winter Weather Advisory | GYX | 48 hr |
| Feb 27, 2:32 PM EST | Winter Weather Advisory | CAR | 42 hr |
| Mar 1, 2:25 PM EST | Winter Weather Advisory | CAR | 31 hr |
| Mar 1, 3:23 PM EST | Winter Weather Advisory | GYX | 24 hr |
| Mar 2, 2:54 PM EST | Winter Storm Watch | GYX | 21 hr |
| Mar 3, 3:07 AM EST | Winter Storm Warning | GYX | 40 hr |
| Mar 3, 12:13 PM EST | Winter Weather Advisory | GYX | 27 hr |
| Mar 5, 9:39 PM EST | Wind Advisory | CAR | 19 hr |
| Mar 5, 9:44 PM EST | Wind Advisory | GYX | 19 hr |
| Mar 11, 3:28 PM EST | Winter Storm Watch | GYX | 47 hr |
| Mar 13, 3:26 AM EDT | Winter Storm Warning | GYX | 52 hr |
| Mar 13, 3:05 PM EDT | Winter Weather Advisory | CAR | 36 hr |
| Mar 13, 3:28 PM EDT | Winter Weather Advisory | GYX | 44 hr |
| Mar 23, 2:55 PM EDT | Dense Fog Advisory | GYX | 9 hr |
| Mar 24, 3:18 PM EDT | Winter Storm Watch | CAR | 13 hr |
| Mar 24, 3:22 PM EDT | Winter Weather Advisory | GYX | 43 hr |
| Mar 25, 3:52 AM EDT | Winter Weather Advisory | CAR | 38 hr |
| Mar 30, 12:30 AM EDT | Special Weather Statement | GYX | 60 min |
| Apr 4, 2:54 PM EDT | Winter Weather Advisory | CAR | 42 hr |
| Apr 4, 3:28 PM EDT | Winter Weather Advisory | GYX | 39 hr |
| Apr 6, 3:17 PM EDT | Wind Advisory | CAR | 23 hr |
| Apr 7, 3:01 AM EDT | Wind Advisory | GYX | 14 hr |
| Apr 29, 3:29 PM EDT | Flood Watch | GYX | 45 hr |
| Apr 30, 11:05 PM EDT | River Flood Warning | GYX | 5 days |
| Apr 30, 11:05 PM EDT | River Flood Warning | GYX | 29 hr |
| May 1, 2:35 AM EDT | Areal Flood Warning | GYX | 9 hr |
| May 1, 5:10 AM EDT | Flash Flood Warning | GYX | 6 hr |
| May 1, 8:36 AM EDT | River Flood Warning | GYX | 27 hr |
| May 1, 9:12 AM EDT | Areal Flood Advisory | GYX | 5 hr |
| May 1, 11:00 AM EDT | Areal Flood Warning | GYX | 6 hr |
| May 1, 1:55 PM EDT | Areal Flood Advisory | GYX | 15 hr |
| May 1, 5:37 PM EDT | Areal Flood Advisory | GYX | 11 hr |
| May 17, 3:21 AM EDT | Freeze Watch | GYX | 12 hr |
| May 17, 3:22 PM EDT | Freeze Warning | GYX | 16 hr |
| May 18, 2:41 PM EDT | Frost Advisory | GYX | 17 hr |
| May 21, 3:08 PM EDT | Frost Advisory | GYX | 16 hr |
| May 22, 3:02 PM EDT | Frost Advisory | GYX | 16 hr |
| May 25, 3:22 AM EDT | Frost Advisory | GYX | 29 hr |
| Jun 2, 2:08 PM EDT | Severe Thunderstorm Warning | GYX | 37 min |
| Jun 2, 2:31 PM EDT | Areal Flood Advisory | GYX | 3 hr |
| Jun 2, 4:12 PM EDT | Special Weather Statement | CAR | 48 min |
| Jun 2, 5:38 PM EDT | Severe Thunderstorm Warning | GYX | 22 min |
| Jun 13, 3:39 AM EDT | Dense Fog Advisory | GYX | 4 hr |
| Jun 16, 2:18 PM EDT | Areal Flood Advisory | GYX | 117 min |
| Jun 17, 6:43 AM EDT | Flood Watch | GYX | 14 hr |
| Jun 18, 3:27 AM EDT | Areal Flood Advisory | GYX | 6 hr |
| Jun 18, 12:54 PM EDT | River Flood Warning | GYX | 44 hr |
| Jun 25, 8:13 PM EDT | Areal Flood Advisory | GYX | 2 hr |
| Jun 29, 2:02 PM EDT | Areal Flood Advisory | GYX | 3 hr |
| Jun 29, 3:43 PM EDT | Flash Flood Warning | GYX | 5 hr |
| Jun 29, 4:19 PM EDT | Areal Flood Advisory | GYX | 3 hr |
| Jun 29, 5:26 PM EDT | Areal Flood Advisory | GYX | 52 min |
| Jun 29, 6:18 PM EDT | Flash Flood Warning | GYX | 2 hr |
| Jul 2, 2:37 PM EDT | Flood Watch | GYX | 15 hr |
| Jul 4, 1:20 PM EDT | Special Weather Statement | GYX | 25 min |
| Jul 4, 3:29 PM EDT | Areal Flood Advisory | GYX | 3 hr |
| Jul 5, 3:35 PM EDT | Heat Advisory | GYX | 27 hr |
| Jul 7, 8:59 AM EDT | Flood Watch | CAR | 12 hr |
| Jul 7, 9:02 AM EDT | Flood Watch | GYX | 11 hr |
| Jul 7, 2:10 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 7, 2:18 PM EDT | Special Weather Statement | GYX | 27 min |
| Jul 7, 2:39 PM EDT | Severe Thunderstorm Warning | GYX | 51 min |
| Jul 7, 3:09 PM EDT | Areal Flood Advisory | CAR | 83 min |
| Jul 7, 3:09 PM EDT | Areal Flood Advisory | GYX | 3 hr |
| Jul 7, 3:32 PM EDT | Severe Thunderstorm Warning | GYX | 58 min |
| Jul 7, 4:17 PM EDT | Special Weather Statement | CAR | 28 min |
| Jul 7, 4:52 PM EDT | Flash Flood Warning | GYX | 3 hr |
| Jul 8, 1:05 PM EDT | Areal Flood Advisory | GYX | 49 min |
| Jul 8, 1:54 PM EDT | Flash Flood Warning | GYX | 4 hr |
| Jul 8, 4:02 PM EDT | Areal Flood Advisory | CAR | 85 min |
| Jul 8, 6:03 PM EDT | Flash Flood Warning | GYX | 3 hr |
| Jul 9, 3:45 PM EDT | Areal Flood Advisory | GYX | 5 hr |
| Jul 9, 3:54 PM EDT | Areal Flood Advisory | CAR | 36 min |
| Jul 9, 4:30 PM EDT | Flash Flood Warning | CAR | 119 min |
| Jul 9, 6:29 PM EDT | Areal Flood Advisory | CAR | 2 hr |
| Jul 15, 3:23 AM EDT | Flood Watch | GYX | 47 hr |
| Jul 15, 12:16 PM EDT | Flood Watch | CAR | 41 hr |
| Jul 15, 3:25 PM EDT | Areal Flood Advisory | GYX | 3 hr |
| Jul 15, 8:02 PM EDT | Areal Flood Advisory | GYX | 6 hr |
| Jul 16, 4:02 PM EDT | Areal Flood Warning | GYX | 6 hr |
| Jul 16, 11:27 PM EDT | Areal Flood Advisory | GYX | 4 hr |
| Jul 17, 2:35 PM EDT | Flood Watch | GYX | 33 hr |
| Jul 18, 12:11 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 18, 2:18 PM EDT | Areal Flood Advisory | GYX | 3 hr |
| Jul 18, 4:06 PM EDT | Flash Flood Warning | GYX | 3 hr |
| Jul 18, 4:22 PM EDT | Flash Flood Warning | GYX | 3 hr |
| Jul 18, 4:51 PM EDT | Special Weather Statement | GYX | 39 min |
| Jul 18, 8:59 PM EDT | Severe Thunderstorm Warning | GYX | 46 min |
| Jul 18, 10:10 PM EDT | Areal Flood Advisory | GYX | 4 hr |
| Jul 28, 3:04 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 7, 2:52 PM EDT | Flood Watch | GYX | 31 hr |
| Aug 8, 6:19 AM EDT | Areal Flood Advisory | GYX | 116 min |
| Aug 8, 10:11 AM EDT | Flash Flood Warning | GYX | 5 hr |
| Aug 8, 1:35 PM EDT | Areal Flood Warning | GYX | 8 hr |
| Aug 10, 1:58 PM EDT | Special Weather Statement | GYX | 32 min |
| Aug 11, 1:34 AM EDT | Areal Flood Advisory | GYX | 3 hr |
| Aug 13, 12:35 PM EDT | Mesoscale Discussion | SPC | 115 min |
| Aug 13, 1:51 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Aug 13, 2:18 PM EDT | Special Weather Statement | GYX | 27 min |
| Aug 13, 2:20 PM EDT | Severe Thunderstorm Warning | GYX | 40 min |
| Aug 13, 2:25 PM EDT | Areal Flood Advisory | GYX | 3 hr |
| Aug 13, 2:57 PM EDT | Special Weather Statement | GYX | 33 min |
| Aug 13, 3:12 PM EDT | Flash Flood Warning | GYX | 2 hr |
| Aug 13, 3:22 PM EDT | Severe Thunderstorm Warning | GYX | 53 min |
| Aug 13, 3:32 PM EDT | Severe Thunderstorm Warning | GYX | 43 min |
| Aug 13, 3:58 PM EDT | Mesoscale Discussion | SPC | 62 min |
| Aug 13, 5:04 PM EDT | Areal Flood Advisory | CAR | 4 hr |
| Aug 13, 5:35 PM EDT | Areal Flood Advisory | GYX | 3 hr |
| Aug 14, 1:11 AM EDT | Dense Fog Advisory | CAR | 6 hr |
| Sep 4, 7:08 AM EDT | Dense Fog Advisory | GYX | 112 min |
| Sep 7, 5:50 PM EDT | Mesoscale Discussion | SPC | 85 min |
| Sep 7, 8:47 PM EDT | Severe Thunderstorm Warning | GYX | 43 min |
| Sep 8, 3:34 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Sep 13, 6:42 PM EDT | Areal Flood Advisory | GYX | 70 min |
| Sep 13, 7:52 PM EDT | Flash Flood Warning | GYX | 113 min |
| Sep 13, 8:01 PM EDT | Special Weather Statement | CAR | 59 min |
| Sep 14, 5:38 PM EDT | Tropical Storm Warning | GYX | 50 hr |
| Sep 15, 11:24 AM EDT | Wind Advisory | GYX | 30 hr |
| Sep 18, 3:28 AM EDT | Flood Watch | GYX | 30 hr |
| Sep 19, 3:42 AM EDT | Areal Flood Advisory | GYX | 103 min |
| Sep 19, 4:54 AM EDT | Areal Flood Advisory | CAR | 5 hr |
| Sep 19, 4:56 AM EDT | Areal Flood Warning | GYX | 5 hr |
| Sep 19, 6:02 PM EDT | Areal Flood Advisory | CAR | 4 hr |
| Sep 29, 6:26 AM EDT | Dense Fog Advisory | GYX | 3 hr |
| Sep 29, 6:43 AM EDT | Dense Fog Advisory | CAR | 2 hr |
| Oct 5, 2:52 AM EDT | Dense Fog Advisory | GYX | 9 hr |
| Oct 6, 2:28 PM EDT | Flood Watch | CAR | 40 hr |
| Oct 6, 2:29 PM EDT | Flood Watch | GYX | 36 hr |
| Oct 8, 12:01 AM EDT | Areal Flood Advisory | GYX | 5 hr |
| Oct 29, 2:00 AM EDT | Winter Weather Advisory | CAR | 42 hr |
| Oct 29, 3:26 AM EDT | Winter Weather Advisory | GYX | 37 hr |
| Nov 7, 2:39 PM EST | Wind Advisory | GYX | 26 hr |
| Nov 7, 2:52 PM EST | Wind Advisory | CAR | 26 hr |
| Nov 21, 3:44 AM EST | Winter Weather Advisory | GYX | 39 hr |
| Nov 21, 9:55 AM EST | Winter Weather Advisory | CAR | 36 hr |
| Nov 22, 9:50 AM EST | Mesoscale Discussion | SPC | 4 hr |
| Nov 26, 3:37 AM EST | Winter Weather Advisory | CAR | 36 hr |
| Nov 26, 4:01 AM EST | Winter Weather Advisory | GYX | 31 hr |
| Nov 26, 3:07 PM EST | Wind Advisory | GYX | 18 hr |
| Dec 2, 3:28 PM EST | Winter Storm Watch | GYX | 12 hr |
| Dec 2, 3:33 PM EST | Winter Storm Watch | CAR | 12 hr |
| Dec 3, 3:32 AM EST | Winter Storm Warning | GYX | 33 hr |
| Dec 3, 3:36 AM EST | Winter Storm Warning | CAR | 35 hr |
| Dec 8, 2:59 PM EST | Flood Watch | GYX | 67 hr |
| Dec 10, 2:59 AM EST | Winter Storm Watch | CAR | 31 hr |
| Dec 10, 3:06 AM EST | Winter Weather Advisory | GYX | 36 hr |
| Dec 10, 4:03 AM EST | Dense Fog Advisory | CAR | 7 hr |
| Dec 10, 5:01 AM EST | Dense Fog Advisory | GYX | 10 hr |
| Dec 10, 3:13 PM EST | Winter Storm Warning | CAR | 24 hr |
| Dec 11, 4:52 AM EST | Areal Flood Advisory | GYX | 6 hr |
| Dec 11, 8:04 AM EST | River Flood Warning | GYX | 33 hr |
| Dec 16, 3:17 PM EST | Flood Watch | GYX | 58 hr |
| Dec 17, 2:42 PM EST | Wind Advisory | CAR | 30 hr |
| Dec 17, 2:44 PM EST | Wind Advisory | GYX | 28 hr |
| Dec 18, 6:57 AM EST | River Flood Warning | GYX | 38 hr |
| Dec 18, 6:57 AM EST | River Flood Warning | GYX | 40 hr |
| Dec 18, 8:59 AM EST | Flash Flood Warning | GYX | 5 hr |
| Dec 18, 12:34 PM EST | River Flood Warning | GYX | 4 days |
| Dec 18, 2:38 PM EST | Areal Flood Warning | GYX | 9 hr |
| Dec 27, 2:58 PM EST | Winter Weather Advisory | CAR | 15 hr |
| Dec 28, 2:53 PM EST | Winter Weather Advisory | CAR | 43 hr |
| Dec 28, 3:08 PM EST | Winter Weather Advisory | GYX | 21 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 | 9 |
| Severe Thunderstorm Watch | 2 |
| Mesoscale Discussion | 8 |
| Special Weather Statement | 12 |
| Flooding | |
| Areal Flood Warning | 6 |
| Flash Flood Warning | 13 |
| River Flood Warning | 8 |
| Flood Watch | 15 |
| Areal Flood Advisory | 34 |
| Winter | |
| Winter Storm Warning | 11 |
| Winter Storm Watch | 12 |
| Winter Weather Advisory | 39 |
| Heat | |
| Heat Advisory | 1 |
| Cold | |
| Freeze Warning | 1 |
| Wind Chill Warning | 2 |
| Freeze Watch | 1 |
| Wind Chill Watch | 2 |
| Frost Advisory | 4 |
| Wind Chill Advisory | 2 |
| Wind and dust | |
| Wind Advisory | 11 |
| Fog and smoke | |
| Dense Fog Advisory | 9 |
| Tropical | |
| Tropical Storm Warning | 1 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20222024
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.