Alert archive / Maine / Somerset County
Weather alerts in Somerset County, Maine, 2019
197 weather alerts in 2019, 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 2019. Tap one for its archive.
- Alerts
- 197
- Warnings
- 44
- Watches
- 29
- Advisories
- 96
- Busiest month
- January36 alerts
- Busiest day
- September 24, 20197 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, 2019
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 8 | 1 | 88% | 1 | 100% | 18 min |
| Flash flood warnings | 2 | 0 | 100% | 0 |
Each office's whole area, 2019
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Gray, ME: tornado warnings | 1 | 0 | 100% | 0 | ||
| NWS Gray, ME: severe thunderstorm warnings | 59 | 39 | 34% | 82 | 80% | 17 min |
| NWS Gray, ME: flash flood warnings | 8 | 4 | 50% | 19 | 68% | 99 min |
| NWS Caribou, ME: tornado warnings | 0 | 1 | 0% | |||
| NWS Caribou, ME: severe thunderstorm warnings | 53 | 23 | 57% | 58 | 72% | 20 min |
| NWS Caribou, ME: flash flood warnings | 2 | 1 | 50% | 1 | 100% | 14 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 |
|---|---|---|---|
| Dec 31, 10:15 PM EST | Mesoscale Discussion | SPC | 6 hr |
| Jan 1, 3:08 PM EST | Wind Chill Advisory | CAR | 18 hr |
| Jan 6, 4:19 PM EST | Wind Chill Advisory | CAR | 16 hr |
| Jan 7, 3:19 AM EST | Winter Weather Advisory | GYX | 68 hr |
| Jan 7, 3:22 AM EST | Winter Weather Advisory | CAR | 69 hr |
| Jan 7, 4:05 PM EST | Winter Storm Watch | GYX | 23 hr |
| Jan 7, 4:26 PM EST | Winter Storm Watch | CAR | 24 hr |
| Jan 8, 3:07 PM EST | Winter Storm Warning | GYX | 31 hr |
| Jan 8, 4:30 PM EST | Winter Storm Warning | CAR | 32 hr |
| Jan 11, 2:51 AM EST | Wind Chill Advisory | GYX | 30 hr |
| Jan 11, 3:03 AM EST | Wind Chill Advisory | CAR | 31 hr |
| Jan 16, 3:16 AM EST | Wind Chill Advisory | GYX | 31 hr |
| Jan 16, 3:32 AM EST | Wind Chill Advisory | CAR | 29 hr |
| Jan 17, 3:52 AM EST | Winter Storm Watch | GYX | 36 hr |
| Jan 17, 3:14 PM EST | Wind Chill Advisory | CAR | 45 hr |
| Jan 17, 3:14 PM EST | Winter Storm Watch | CAR | 25 hr |
| Jan 18, 3:30 PM EST | Winter Storm Warning | GYX | 52 hr |
| Jan 18, 3:51 PM EST | Winter Storm Warning | CAR | 69 hr |
| Jan 20, 3:51 AM EST | Wind Chill Advisory | GYX | 53 hr |
| Jan 20, 6:42 AM EST | Mesoscale Discussion | SPC | 6 hr |
| Jan 20, 1:01 PM EST | Mesoscale Discussion | SPC | 4 hr |
| Jan 21, 10:07 AM EST | Winter Weather Advisory | CAR | 17 hr |
| Jan 21, 3:16 PM EST | Wind Chill Warning | GYX | 18 hr |
| Jan 21, 3:37 PM EST | Wind Chill Advisory | CAR | 21 hr |
| Jan 22, 5:21 AM EST | Wind Chill Warning | CAR | 6 hr |
| Jan 22, 2:51 PM EST | Winter Weather Advisory | GYX | 44 hr |
| Jan 22, 3:37 PM EST | Winter Weather Advisory | CAR | 45 hr |
| Jan 28, 3:22 AM EST | Winter Storm Watch | GYX | 12 hr |
| Jan 28, 4:02 AM EST | Winter Storm Watch | CAR | 24 hr |
| Jan 28, 2:48 PM EST | Winter Storm Warning | CAR | 48 hr |
| Jan 28, 3:12 PM EST | Winter Storm Warning | GYX | 43 hr |
| Jan 30, 3:22 AM EST | Wind Chill Advisory | GYX | 32 hr |
| Jan 30, 2:57 PM EST | Wind Chill Advisory | CAR | 18 hr |
| Jan 30, 8:35 PM EST | Snow Squall Warning | GYX | 55 min |
| Jan 31, 2:17 PM EST | Wind Chill Advisory | GYX | 19 hr |
| Jan 31, 3:46 PM EST | Wind Chill Advisory | CAR | 19 hr |
| Feb 1, 11:49 AM EST | Wind Chill Advisory | CAR | 18 hr |
| Feb 1, 2:36 PM EST | Wind Chill Advisory | GYX | 18 hr |
| Feb 3, 2:36 PM EST | Winter Weather Advisory | GYX | 12 hr |
| Feb 4, 3:58 PM EST | Winter Weather Advisory | CAR | 17 hr |
| Feb 6, 2:51 PM EST | Winter Weather Advisory | CAR | 46 hr |
| Feb 6, 3:19 PM EST | Winter Weather Advisory | GYX | 12 hr |
| Feb 7, 3:07 AM EST | Winter Weather Advisory | GYX | 31 hr |
| Feb 8, 2:59 AM EST | Wind Advisory | GYX | 39 hr |
| Feb 8, 3:23 AM EST | Wind Advisory | CAR | 39 hr |
| Feb 9, 9:12 PM EST | Wind Chill Advisory | CAR | 9 hr |
| Feb 10, 3:40 PM EST | Winter Storm Watch | GYX | 36 hr |
| Feb 10, 4:08 PM EST | Wind Chill Advisory | CAR | 17 hr |
| Feb 10, 4:08 PM EST | Winter Storm Watch | CAR | 35 hr |
| Feb 11, 3:04 PM EST | Winter Storm Warning | GYX | 46 hr |
| Feb 11, 4:00 PM EST | Winter Storm Warning | CAR | 50 hr |
| Feb 12, 11:21 PM EST | Mesoscale Discussion | SPC | 3 hr |
| Feb 14, 3:46 PM EST | Winter Weather Advisory | CAR | 36 hr |
| Feb 15, 8:27 AM EST | Winter Weather Advisory | GYX | 15 hr |
| Feb 15, 9:23 PM EST | Dense Fog Advisory | GYX | 4 hr |
| Feb 18, 2:48 AM EST | Wind Chill Advisory | GYX | 31 hr |
| Feb 18, 3:20 AM EST | Wind Chill Advisory | CAR | 30 hr |
| Feb 19, 2:43 PM EST | Wind Chill Advisory | CAR | 10 hr |
| Feb 20, 3:11 AM EST | Winter Weather Advisory | GYX | 33 hr |
| Feb 20, 3:38 AM EST | Winter Weather Advisory | CAR | 37 hr |
| Feb 22, 3:14 PM EST | Winter Storm Watch | CAR | 13 hr |
| Feb 23, 3:11 AM EST | Winter Storm Warning | GYX | 45 hr |
| Feb 23, 3:54 AM EST | Winter Storm Warning | CAR | 54 hr |
| Feb 23, 2:29 PM EST | High Wind Watch | GYX | 25 hr |
| Feb 24, 3:00 PM EST | Wind Advisory | GYX | 31 hr |
| Feb 25, 3:16 AM EST | Wind Advisory | CAR | 45 hr |
| Feb 25, 3:34 AM EST | Wind Chill Advisory | GYX | 54 hr |
| Feb 25, 5:31 AM EST | Wind Chill Advisory | CAR | 33 hr |
| Feb 25, 5:59 AM EST | Winter Weather Advisory | GYX | 14 hr |
| Feb 26, 2:24 AM EST | Wind Advisory | GYX | 15 hr |
| Feb 26, 2:53 PM EST | Wind Chill Warning | CAR | 19 hr |
| Feb 26, 2:53 PM EST | Wind Chill Warning | GYX | 19 hr |
| Mar 2, 3:14 AM EST | Winter Storm Watch | GYX | 35 hr |
| Mar 3, 3:18 AM EST | Winter Weather Advisory | GYX | 33 hr |
| Mar 9, 2:49 PM EST | Winter Weather Advisory | GYX | 31 hr |
| Mar 9, 4:09 PM EST | Winter Weather Advisory | CAR | 34 hr |
| Mar 15, 9:18 PM EDT | Dense Fog Advisory | GYX | 9 hr |
| Mar 22, 3:14 AM EDT | Winter Storm Warning | GYX | 26 hr |
| Mar 22, 4:01 AM EDT | Winter Storm Warning | CAR | 24 hr |
| Mar 22, 5:29 AM EDT | Mesoscale Discussion | SPC | 4 hr |
| Apr 3, 4:20 PM EDT | Wind Advisory | CAR | 27 hr |
| Apr 6, 3:04 PM EDT | Winter Storm Watch | GYX | 24 hr |
| Apr 6, 3:05 PM EDT | Winter Storm Watch | CAR | 24 hr |
| Apr 7, 3:23 PM EDT | Winter Storm Warning | GYX | 29 hr |
| Apr 7, 3:31 PM EDT | Winter Storm Warning | CAR | 36 hr |
| Apr 8, 3:00 PM EDT | Mesoscale Discussion | SPC | 6 hr |
| Apr 9, 9:03 AM EDT | Winter Weather Advisory | CAR | 21 hr |
| Apr 9, 2:53 PM EDT | Winter Weather Advisory | GYX | 12 hr |
| Apr 13, 3:36 PM EDT | Flood Watch | GYX | 59 hr |
| Apr 15, 2:57 AM EDT | Flood Watch | CAR | 3 days |
| Apr 15, 2:48 PM EDT | River Flood Warning | GYX | 48 hr |
| Apr 18, 3:05 AM EDT | Flood Watch | GYX | 60 hr |
| Apr 19, 3:07 AM EDT | Flood Watch | CAR | 4 days |
| Apr 20, 9:37 AM EDT | River Flood Warning | GYX | 21 days |
| Apr 25, 3:17 PM EDT | Flood Watch | GYX | 47 hr |
| Apr 27, 12:04 PM EDT | River Flood Warning | GYX | 39 hr |
| May 13, 2:36 PM EDT | Winter Weather Advisory | GYX | 21 hr |
| May 20, 2:00 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| May 20, 5:52 PM EDT | Severe Thunderstorm Warning | GYX | 40 min |
| May 27, 2:59 AM EDT | Freeze Warning | GYX | 29 hr |
| May 31, 5:35 PM EDT | Frost Advisory | CAR | 12 hr |
| Jun 7, 7:31 PM EDT | Special Weather Statement | GYX | 59 min |
| Jun 19, 12:06 AM EDT | Dense Fog Advisory | GYX | 10 hr |
| Jun 27, 1:13 PM EDT | Special Weather Statement | GYX | 32 min |
| Jun 27, 1:29 PM EDT | Severe Thunderstorm Warning | GYX | 46 min |
| Jun 27, 1:55 PM EDT | Severe Thunderstorm Warning | GYX | 30 min |
| Jun 27, 2:18 PM EDT | Special Weather Statement | CAR | 57 min |
| Jun 27, 3:48 PM EDT | Mesoscale Discussion | SPC | 117 min |
| Jun 27, 7:31 PM EDT | Severe Thunderstorm Warning | CAR | 44 min |
| Jun 27, 9:02 PM EDT | Severe Thunderstorm Warning | CAR | 43 min |
| Jun 27, 9:34 PM EDT | Special Weather Statement | GYX | 41 min |
| Jul 2, 11:53 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 6, 12:36 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 6, 1:05 PM EDT | Areal Flood Advisory | GYX | 115 min |
| Jul 6, 1:08 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jul 6, 1:46 PM EDT | Special Weather Statement | GYX | 29 min |
| Jul 19, 3:49 AM EDT | Heat Advisory | GYX | 63 hr |
| Jul 21, 5:45 AM EDT | Mesoscale Discussion | SPC | 3 hr |
| Jul 21, 6:03 AM EDT | Special Weather Statement | GYX | 57 min |
| Jul 21, 6:08 AM EDT | Severe Thunderstorm Warning | GYX | 52 min |
| Jul 21, 7:08 AM EDT | Special Weather Statement | GYX | 22 min |
| Jul 28, 1:45 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 28, 2:16 PM EDT | Special Weather Statement | GYX | 14 min |
| Jul 28, 4:58 PM EDT | Severe Thunderstorm Warning | GYX | 47 min |
| Jul 29, 6:28 AM EDT | Dense Fog Advisory | GYX | 107 min |
| Aug 3, 2:29 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 7, 2:13 PM EDT | Areal Flood Advisory | CAR | 4 hr |
| Aug 7, 3:41 PM EDT | Areal Flood Advisory | CAR | 4 hr |
| Aug 7, 7:59 PM EDT | Areal Flood Advisory | GYX | 2 hr |
| Aug 7, 8:24 PM EDT | Flash Flood Watch | GYX | 7 hr |
| Aug 8, 10:34 PM EDT | Special Weather Statement | GYX | 56 min |
| Aug 9, 12:47 PM EDT | Special Weather Statement | GYX | 58 min |
| Aug 10, 2:08 PM EDT | Severe Thunderstorm Warning | GYX | 22 min |
| Aug 12, 2:06 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 17, 5:40 AM EDT | Areal Flood Advisory | GYX | 65 min |
| Aug 19, 2:20 PM EDT | Mesoscale Discussion | SPC | 115 min |
| Aug 28, 3:48 AM EDT | Flash Flood Watch | GYX | 25 hr |
| Aug 31, 2:44 PM EDT | Frost Advisory | CAR | 16 hr |
| Sep 9, 2:51 AM EDT | Frost Advisory | CAR | 27 hr |
| Sep 12, 3:07 AM EDT | Frost Advisory | CAR | 28 hr |
| Sep 16, 3:02 PM EDT | Freeze Watch | CAR | 24 hr |
| Sep 17, 2:44 PM EDT | Freeze Warning | CAR | 17 hr |
| Sep 17, 4:14 PM EDT | Frost Advisory | GYX | 11 hr |
| Sep 18, 3:12 AM EDT | Frost Advisory | GYX | 29 hr |
| Sep 18, 6:13 AM EDT | Freeze Warning | CAR | 26 hr |
| Sep 23, 11:14 PM EDT | Areal Flood Advisory | GYX | 3 hr |
| Sep 24, 12:42 AM EDT | Flash Flood Warning | GYX | 2 hr |
| Sep 24, 12:45 AM EDT | Areal Flood Advisory | GYX | 3 hr |
| Sep 24, 3:22 PM EDT | Areal Flood Advisory | GYX | 113 min |
| Sep 24, 3:31 PM EDT | Flash Flood Warning | GYX | 89 min |
| Sep 24, 4:39 PM EDT | Areal Flood Advisory | GYX | 2 hr |
| Sep 24, 5:51 PM EDT | Areal Flood Advisory | GYX | 3 hr |
| Sep 29, 2:54 AM EDT | Frost Advisory | GYX | 28 hr |
| Oct 2, 3:14 PM EDT | Frost Advisory | GYX | 17 hr |
| Oct 4, 2:48 AM EDT | Frost Advisory | GYX | 29 hr |
| Oct 23, 10:45 AM EDT | Areal Flood Advisory | GYX | 60 min |
| Oct 30, 3:30 PM EDT | Wind Advisory | GYX | 50 hr |
| Oct 31, 5:36 AM EDT | High Wind Warning | CAR | 36 hr |
| Oct 31, 5:36 AM EDT | Wind Advisory | CAR | 10 hr |
| Nov 1, 5:58 PM EDT | Wind Advisory | CAR | 2 hr |
| Nov 10, 3:20 PM EST | Winter Storm Watch | CAR | 12 hr |
| Nov 10, 3:31 PM EST | Winter Storm Watch | GYX | 12 hr |
| Nov 11, 2:57 AM EST | Winter Storm Warning | CAR | 39 hr |
| Nov 11, 3:18 AM EST | Winter Storm Warning | GYX | 36 hr |
| Nov 11, 3:18 AM EST | Winter Weather Advisory | GYX | 36 hr |
| Nov 15, 2:34 PM EST | Mesoscale Discussion | SPC | 3 hr |
| Nov 15, 5:09 PM EST | Special Weather Statement | GYX | 51 min |
| Nov 15, 6:47 PM EST | Snow Squall Warning | GYX | 28 min |
| Nov 17, 2:47 PM EST | Winter Weather Advisory | GYX | 46 hr |
| Nov 17, 3:39 PM EST | Winter Weather Advisory | CAR | 50 hr |
| Nov 21, 3:24 AM EST | Winter Weather Advisory | CAR | 31 hr |
| Nov 21, 9:17 PM EST | Winter Weather Advisory | GYX | 11 hr |
| Nov 23, 3:13 AM EST | Winter Storm Watch | GYX | 13 hr |
| Nov 23, 2:42 PM EST | Winter Weather Advisory | CAR | 40 hr |
| Nov 23, 3:46 PM EST | Winter Storm Warning | GYX | 35 hr |
| Nov 23, 3:46 PM EST | Winter Weather Advisory | GYX | 35 hr |
| Nov 27, 3:32 AM EST | Winter Weather Advisory | GYX | 29 hr |
| Nov 27, 4:39 AM EST | Winter Weather Advisory | CAR | 31 hr |
| Nov 28, 7:20 AM EST | Winter Storm Warning | CAR | 4 hr |
| Nov 29, 4:14 PM EST | Winter Storm Watch | GYX | 60 hr |
| Nov 30, 3:23 PM EST | Winter Storm Warning | GYX | 3 days |
| Dec 1, 4:04 AM EST | Winter Weather Advisory | GYX | 61 hr |
| Dec 2, 3:52 AM EST | Winter Weather Advisory | CAR | 41 hr |
| Dec 3, 12:42 PM EST | Mesoscale Discussion | SPC | 4 hr |
| Dec 9, 2:28 PM EST | Dense Fog Advisory | GYX | 4 hr |
| Dec 13, 9:56 AM EST | Winter Weather Advisory | GYX | 15 hr |
| Dec 14, 11:38 AM EST | Areal Flood Advisory | GYX | 5 hr |
| Dec 14, 3:17 PM EST | Wind Advisory | GYX | 31 hr |
| Dec 14, 3:55 PM EST | Wind Advisory | CAR | 35 hr |
| Dec 18, 5:02 PM EST | Winter Weather Advisory | GYX | 10 hr |
| Dec 18, 8:03 PM EST | Special Weather Statement | GYX | 57 min |
| Dec 26, 3:41 AM EST | Winter Weather Advisory | GYX | 36 hr |
| Dec 26, 3:56 PM EST | Winter Weather Advisory | CAR | 27 hr |
| Dec 28, 2:56 PM EST | Winter Storm Watch | GYX | 37 hr |
| Dec 29, 3:51 AM EST | Winter Storm Warning | GYX | 59 hr |
| Dec 29, 3:01 PM EST | Winter Storm Watch | CAR | 12 hr |
| Dec 30, 3:22 AM EST | Winter Storm Warning | CAR | 45 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 | 8 |
| Severe Thunderstorm Watch | 2 |
| Mesoscale Discussion | 16 |
| Special Weather Statement | 12 |
| Flooding | |
| Flash Flood Warning | 2 |
| River Flood Warning | 3 |
| Flash Flood Watch | 2 |
| Flood Watch | 5 |
| Areal Flood Advisory | 12 |
| Winter | |
| Snow Squall Warning | 2 |
| Winter Storm Warning | 21 |
| Winter Storm Watch | 18 |
| Winter Weather Advisory | 36 |
| Heat | |
| Heat Advisory | 1 |
| Cold | |
| Freeze Warning | 3 |
| Wind Chill Warning | 4 |
| Freeze Watch | 1 |
| Frost Advisory | 9 |
| Wind Chill Advisory | 22 |
| Wind and dust | |
| High Wind Warning | 1 |
| High Wind Watch | 1 |
| Wind Advisory | 11 |
| Fog and smoke | |
| Dense Fog Advisory | 5 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20182020
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.