Weather alerts in Somerset County, Maine, 2018

237 weather alerts in 2018, 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 2018. Tap one for its archive.

Alerts: 237
Warnings: 47
Watches: 27
Advisories: 109
Busiest month: July53 alerts
Busiest day: July 27, 201812 alerts

Over time

By month

Warning verification

How often warnings here had a storm report inside them, and how much warning the reports had.

0 of 1 tornado warnings covering Somerset County in 2018 had a tornado report inside them.

Somerset County, 2018

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
Tornado warnings	1	0	100%	0
Severe thunderstorm warnings	15	5	67%	4	75%	8 min
Flash flood warnings	2	0	100%	0

Each office's whole area, 2018

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS Gray, ME: tornado warnings	8	1	88%	3	33%	20 min
NWS Gray, ME: severe thunderstorm warnings	104	78	25%	223	84%	24 min
NWS Gray, ME: flash flood warnings	16	7	56%	21	76%	73 min
NWS Caribou, ME: tornado warnings	3	0	100%	0
NWS Caribou, ME: severe thunderstorm warnings	41	26	37%	66	65%	20 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, 2:51 PM EST	Winter Storm Watch	GYX	24 hr
Jan 2, 3:23 PM EST	Winter Storm Watch	CAR	24 hr
Jan 3, 2:55 PM EST	Winter Storm Warning	CAR	37 hr
Jan 3, 3:11 PM EST	Winter Storm Warning	GYX	36 hr
Jan 4, 11:34 AM EST	Mesoscale Discussion	SPC	5 hr
Jan 4, 2:58 PM EST	Wind Chill Watch	GYX	12 hr
Jan 4, 3:06 PM EST	Mesoscale Discussion	SPC	5 hr
Jan 5, 3:04 AM EST	Wind Chill Warning	GYX	55 hr
Jan 5, 3:04 AM EST	Wind Chill Advisory	GYX	55 hr
Jan 5, 3:36 AM EST	Winter Weather Advisory	CAR	12 hr
Jan 5, 3:21 PM EST	Wind Chill Warning	CAR	42 hr
Jan 7, 9:50 AM EST	Wind Chill Advisory	CAR	3 hr
Jan 10, 2:57 AM EST	Winter Weather Advisory	GYX	27 hr
Jan 10, 3:30 AM EST	Winter Weather Advisory	CAR	29 hr
Jan 11, 2:38 PM EST	Winter Storm Watch	CAR	13 hr
Jan 11, 2:38 PM EST	Winter Weather Advisory	CAR	49 hr
Jan 11, 3:07 PM EST	Winter Storm Watch	GYX	13 hr
Jan 11, 3:44 PM EST	Flood Watch	GYX	44 hr
Jan 12, 4:34 AM EST	Winter Weather Advisory	GYX	33 hr
Jan 12, 7:59 AM EST	Dense Fog Advisory	GYX	21 hr
Jan 13, 12:56 AM EST	Mesoscale Discussion	SPC	6 hr
Jan 16, 3:33 AM EST	Winter Weather Advisory	GYX	39 hr
Jan 22, 2:56 AM EST	Winter Weather Advisory	CAR	41 hr
Jan 22, 3:06 AM EST	Winter Weather Advisory	GYX	41 hr
Jan 24, 2:30 PM EST	Wind Chill Advisory	CAR	19 hr
Jan 24, 2:53 PM EST	Wind Chill Advisory	GYX	18 hr
Jan 25, 2:29 PM EST	Wind Chill Advisory	GYX	17 hr
Jan 25, 2:50 PM EST	Wind Chill Advisory	CAR	18 hr
Jan 30, 9:57 PM EST	Wind Chill Advisory	CAR	8 hr
Feb 2, 3:23 AM EST	Wind Chill Advisory	GYX	30 hr
Feb 2, 3:39 AM EST	Wind Chill Advisory	CAR	32 hr
Feb 4, 3:18 AM EST	Winter Weather Advisory	GYX	27 hr
Feb 4, 3:28 AM EST	Winter Weather Advisory	CAR	30 hr
Feb 5, 3:14 PM EST	Winter Storm Watch	GYX	24 hr
Feb 5, 3:52 PM EST	Winter Storm Watch	CAR	24 hr
Feb 6, 3:18 PM EST	Winter Storm Warning	GYX	32 hr
Feb 6, 3:50 PM EST	Winter Storm Warning	CAR	33 hr
Feb 10, 3:27 AM EST	Winter Weather Advisory	GYX	42 hr
Feb 10, 7:48 PM EST	Dense Fog Advisory	GYX	8 hr
Feb 11, 4:01 AM EST	Winter Weather Advisory	CAR	23 hr
Feb 19, 2:48 PM EST	Winter Weather Advisory	GYX	13 hr
Feb 19, 2:50 PM EST	Winter Weather Advisory	CAR	25 hr
Feb 20, 3:22 PM EST	Dense Fog Advisory	GYX	21 hr
Feb 23, 2:42 AM EST	Winter Weather Advisory	GYX	19 hr
Feb 24, 3:18 PM EST	Winter Weather Advisory	GYX	27 hr
Feb 28, 3:39 AM EST	Winter Weather Advisory	CAR	35 hr
Mar 1, 3:19 PM EST	Winter Weather Advisory	CAR	20 hr
Mar 2, 3:14 AM EST	Winter Weather Advisory	GYX	16 hr
Mar 5, 3:36 AM EST	Winter Storm Watch	GYX	24 hr
Mar 5, 3:40 PM EST	Winter Storm Watch	CAR	23 hr
Mar 6, 3:38 AM EST	Winter Storm Warning	GYX	63 hr
Mar 6, 2:31 PM EST	Winter Storm Warning	CAR	64 hr
Mar 11, 3:49 AM EDT	Winter Storm Watch	GYX	24 hr
Mar 11, 3:13 PM EDT	Winter Storm Watch	CAR	24 hr
Mar 12, 3:41 AM EDT	Winter Storm Warning	GYX	66 hr
Mar 12, 3:44 AM EDT	Winter Storm Warning	CAR	71 hr
Mar 13, 4:53 PM EDT	Mesoscale Discussion	SPC	4 hr
Mar 13, 11:44 PM EDT	Winter Weather Advisory	GYX	19 hr
Mar 14, 7:03 PM EDT	Winter Weather Advisory	GYX	9 hr
Mar 28, 6:07 AM EDT	Special Weather Statement	GYX	113 min
Apr 3, 3:27 AM EDT	Winter Weather Advisory	GYX	30 hr
Apr 3, 4:04 AM EDT	Winter Weather Advisory	CAR	42 hr
Apr 3, 4:10 PM EDT	Wind Advisory	GYX	36 hr
Apr 4, 3:41 PM EDT	Wind Advisory	CAR	24 hr
Apr 14, 3:44 PM EDT	Winter Weather Advisory	GYX	56 hr
Apr 15, 3:52 PM EDT	Winter Weather Advisory	CAR	40 hr
Apr 25, 3:26 AM EDT	Flood Watch	GYX	36 hr
Apr 25, 3:00 PM EDT	Flood Watch	CAR	3 days
Apr 26, 12:14 PM EDT	River Flood Warning	GYX	30 hr
May 4, 12:58 PM EDT	Wind Advisory	GYX	18 hr
May 4, 1:35 PM EDT	Wind Advisory	CAR	24 hr
May 5, 8:04 AM EDT	River Flood Warning	GYX	46 hr
May 11, 3:11 AM EDT	Frost Advisory	GYX	28 hr
May 18, 3:34 AM EDT	Freeze Warning	GYX	27 hr
May 23, 1:35 PM EDT	Severe Thunderstorm Warning	GYX	40 min
Jun 1, 3:26 PM EDT	Special Weather Statement	GYX	34 min
Jun 1, 3:40 PM EDT	Areal Flood Advisory	GYX	65 min
Jun 27, 3:11 PM EDT	Flash Flood Watch	GYX	24 hr
Jun 28, 10:22 PM EDT	Dense Fog Advisory	GYX	8 hr
Jun 29, 12:42 PM EDT	Special Weather Statement	GYX	33 min
Jun 29, 1:00 PM EDT	Mesoscale Discussion	SPC	3 hr
Jun 30, 5:07 PM EDT	Mesoscale Discussion	SPC	83 min
Jul 1, 12:47 AM EDT	Special Weather Statement	GYX	58 min
Jul 1, 1:26 AM EDT	Special Weather Statement	CAR	64 min
Jul 1, 1:32 AM EDT	Areal Flood Advisory	GYX	3 hr
Jul 1, 1:39 AM EDT	Special Weather Statement	GYX	51 min
Jul 1, 2:37 PM EDT	Heat Advisory	GYX	28 hr
Jul 2, 4:14 AM EDT	Heat Advisory	CAR	14 hr
Jul 2, 4:30 AM EDT	Severe Thunderstorm Warning	CAR	60 min
Jul 2, 8:17 PM EDT	Heat Advisory	GYX	23 hr
Jul 2, 9:33 PM EDT	Special Weather Statement	GYX	27 min
Jul 2, 9:50 PM EDT	Special Weather Statement	GYX	55 min
Jul 2, 10:50 PM EDT	Special Weather Statement	GYX	55 min
Jul 4, 3:22 PM EDT	Heat Advisory	GYX	29 hr
Jul 10, 12:40 PM EDT	Special Weather Statement	GYX	50 min
Jul 10, 12:57 PM EDT	Mesoscale Discussion	SPC	3 hr
Jul 10, 1:30 PM EDT	Severe Thunderstorm Warning	CAR	30 min
Jul 10, 2:19 PM EDT	Special Weather Statement	GYX	56 min
Jul 10, 3:13 PM EDT	Special Weather Statement	GYX	62 min
Jul 10, 4:33 PM EDT	Severe Thunderstorm Warning	GYX	42 min
Jul 15, 7:14 AM EDT	Special Weather Statement	GYX	61 min
Jul 15, 8:15 AM EDT	Special Weather Statement	GYX	60 min
Jul 15, 9:12 AM EDT	Special Weather Statement	GYX	33 min
Jul 15, 3:46 PM EDT	Special Weather Statement	GYX	29 min
Jul 15, 4:11 PM EDT	Special Weather Statement	GYX	49 min
Jul 16, 3:38 AM EDT	Dense Fog Advisory	CAR	5 hr
Jul 16, 4:21 AM EDT	Dense Fog Advisory	GYX	6 hr
Jul 17, 7:26 AM EDT	Special Weather Statement	GYX	64 min
Jul 17, 11:20 AM EDT	Areal Flood Advisory	GYX	3 hr
Jul 17, 6:39 PM EDT	Areal Flood Advisory	GYX	3 hr
Jul 26, 4:15 PM EDT	Areal Flood Advisory	GYX	2 hr
Jul 27, 12:10 AM EDT	Dense Fog Advisory	GYX	10 hr
Jul 27, 12:38 PM EDT	Special Weather Statement	GYX	67 min
Jul 27, 1:49 PM EDT	Special Weather Statement	GYX	41 min
Jul 27, 2:06 PM EDT	Mesoscale Discussion	SPC	114 min
Jul 27, 2:07 PM EDT	Areal Flood Advisory	GYX	4 hr
Jul 27, 2:14 PM EDT	Severe Thunderstorm Warning	GYX	31 min
Jul 27, 2:38 PM EDT	Flash Flood Warning	GYX	3 hr
Jul 27, 3:01 PM EDT	Special Weather Statement	GYX	29 min
Jul 27, 3:48 PM EDT	Severe Thunderstorm Warning	GYX	42 min
Jul 27, 4:00 PM EDT	Special Weather Statement	CAR	45 min
Jul 27, 4:50 PM EDT	Mesoscale Discussion	SPC	55 min
Jul 27, 7:07 PM EDT	Special Weather Statement	GYX	38 min
Jul 28, 5:27 PM EDT	Special Weather Statement	GYX	48 min
Jul 28, 5:35 PM EDT	Severe Thunderstorm Warning	GYX	40 min
Jul 28, 5:48 PM EDT	Special Weather Statement	CAR	57 min
Jul 28, 6:48 PM EDT	Special Weather Statement	GYX	42 min
Jul 28, 7:06 PM EDT	Areal Flood Advisory	GYX	3 hr
Jul 28, 7:15 PM EDT	Severe Thunderstorm Warning	GYX	45 min
Jul 28, 7:48 PM EDT	Flash Flood Warning	GYX	3 hr
Jul 28, 8:07 PM EDT	Special Weather Statement	GYX	38 min
Jul 28, 8:21 PM EDT	Special Weather Statement	CAR	54 min
Jul 28, 8:39 PM EDT	Special Weather Statement	GYX	36 min
Jul 29, 1:08 AM EDT	Special Weather Statement	GYX	67 min
Jul 29, 1:39 AM EDT	Special Weather Statement	GYX	51 min
Aug 3, 2:50 PM EDT	Flash Flood Watch	GYX	23 hr
Aug 4, 8:56 AM EDT	Areal Flood Advisory	GYX	3 hr
Aug 5, 3:23 PM EDT	Heat Advisory	GYX	51 hr
Aug 7, 11:50 AM EDT	Special Weather Statement	GYX	25 min
Aug 7, 1:03 PM EDT	Mesoscale Discussion	SPC	117 min
Aug 9, 12:03 PM EDT	Severe Thunderstorm Warning	GYX	27 min
Aug 9, 5:17 PM EDT	Severe Thunderstorm Warning	GYX	43 min
Aug 15, 12:26 PM EDT	Mesoscale Discussion	SPC	2 hr
Aug 15, 3:08 PM EDT	Special Weather Statement	GYX	37 min
Aug 15, 3:09 PM EDT	Severe Thunderstorm Warning	GYX	40 min
Aug 21, 6:01 AM EDT	Dense Fog Advisory	GYX	3 hr
Aug 27, 2:59 AM EDT	Heat Advisory	GYX	65 hr
Aug 29, 2:49 PM EDT	Severe Thunderstorm Warning	CAR	56 min
Aug 29, 2:56 PM EDT	Mesoscale Discussion	SPC	2 hr
Aug 29, 3:44 PM EDT	Severe Thunderstorm Warning	CAR	61 min
Aug 29, 3:45 PM EDT	Severe Thunderstorm Watch	SPC	5 hr
Aug 29, 3:57 PM EDT	Tornado Warning	CAR	33 min
Aug 29, 4:04 PM EDT	Special Weather Statement	GYX	26 min
Aug 29, 4:13 PM EDT	Severe Thunderstorm Warning	GYX	48 min
Aug 29, 4:36 PM EDT	Severe Thunderstorm Warning	GYX	54 min
Aug 29, 5:25 PM EDT	Special Weather Statement	GYX	35 min
Aug 29, 6:16 PM EDT	Mesoscale Discussion	SPC	89 min
Aug 29, 6:16 PM EDT	Mesoscale Discussion	SPC	89 min
Aug 29, 6:25 PM EDT	Special Weather Statement	GYX	35 min
Sep 3, 1:34 PM EDT	Mesoscale Discussion	SPC	116 min
Sep 7, 2:03 PM EDT	Frost Advisory	GYX	42 hr
Sep 7, 4:37 PM EDT	Frost Advisory	CAR	38 hr
Sep 8, 4:16 AM EDT	Freeze Watch	CAR	35 hr
Sep 8, 3:08 PM EDT	Freeze Warning	CAR	15 hr
Sep 9, 3:00 PM EDT	Frost Advisory	GYX	17 hr
Sep 9, 3:30 PM EDT	Freeze Warning	CAR	15 hr
Sep 13, 3:53 AM EDT	Dense Fog Advisory	CAR	5 hr
Sep 14, 3:14 AM EDT	Dense Fog Advisory	GYX	3 hr
Sep 18, 7:57 PM EDT	Areal Flood Advisory	GYX	100 min
Sep 19, 3:12 PM EDT	High Wind Watch	CAR	12 hr
Sep 20, 3:23 AM EDT	Wind Advisory	CAR	57 hr
Sep 22, 3:33 AM EDT	Frost Advisory	GYX	29 hr
Sep 23, 2:58 PM EDT	Frost Advisory	GYX	17 hr
Sep 24, 7:02 PM EDT	Frost Advisory	GYX	12 hr
Oct 5, 2:35 AM EDT	Freeze Warning	GYX	25 hr
Oct 13, 3:05 AM EDT	Frost Advisory	GYX	29 hr
Oct 13, 3:05 AM EDT	Freeze Warning	GYX	29 hr
Oct 15, 3:26 AM EDT	High Wind Watch	CAR	12 hr
Oct 15, 2:46 PM EDT	Wind Advisory	GYX	22 hr
Oct 15, 3:02 PM EDT	High Wind Warning	CAR	23 hr
Oct 17, 3:30 AM EDT	Wind Advisory	CAR	39 hr
Oct 17, 3:03 PM EDT	Wind Advisory	GYX	21 hr
Oct 23, 3:44 AM EDT	Winter Weather Advisory	GYX	12 hr
Oct 23, 5:13 AM EDT	Winter Weather Advisory	CAR	41 hr
Oct 23, 3:14 PM EDT	Winter Storm Warning	GYX	24 hr
Oct 23, 3:14 PM EDT	Winter Weather Advisory	GYX	24 hr
Oct 26, 3:10 PM EDT	Winter Weather Advisory	CAR	44 hr
Oct 26, 3:20 PM EDT	Winter Weather Advisory	GYX	41 hr
Nov 2, 3:00 PM EDT	High Wind Watch	CAR	13 hr
Nov 3, 3:55 AM EDT	Wind Advisory	GYX	18 hr
Nov 3, 4:19 AM EDT	Wind Advisory	CAR	24 hr
Nov 3, 5:03 PM EDT	High Wind Warning	CAR	11 hr
Nov 8, 3:11 PM EST	Winter Storm Watch	CAR	12 hr
Nov 9, 3:34 AM EST	Winter Weather Advisory	CAR	30 hr
Nov 9, 3:54 AM EST	Winter Weather Advisory	GYX	27 hr
Nov 9, 9:46 PM EST	Mesoscale Discussion	SPC	6 hr
Nov 10, 2:57 AM EST	Wind Advisory	GYX	28 hr
Nov 10, 3:13 AM EST	High Wind Watch	CAR	11 hr
Nov 10, 1:52 PM EST	Wind Advisory	CAR	22 hr
Nov 12, 3:09 AM EST	Winter Weather Advisory	CAR	43 hr
Nov 12, 6:52 AM EST	Winter Weather Advisory	GYX	36 hr
Nov 12, 2:59 PM EST	Winter Storm Warning	GYX	28 hr
Nov 12, 3:09 PM EST	Winter Storm Warning	CAR	31 hr
Nov 13, 8:06 AM EST	Mesoscale Discussion	SPC	4 hr
Nov 13, 3:02 PM EST	Wind Advisory	GYX	6 hr
Nov 13, 9:17 PM EST	Wind Advisory	GYX	17 hr
Nov 14, 1:32 AM EST	Wind Advisory	CAR	14 hr
Nov 14, 3:00 PM EST	Winter Storm Watch	GYX	12 hr
Nov 15, 3:27 AM EST	Winter Storm Warning	GYX	35 hr
Nov 15, 2:47 PM EST	Winter Weather Advisory	CAR	34 hr
Nov 16, 3:33 AM EST	Winter Storm Warning	CAR	21 hr
Nov 16, 3:56 AM EST	Mesoscale Discussion	SPC	6 hr
Nov 21, 1:54 PM EST	Wind Chill Advisory	GYX	20 hr
Nov 21, 2:37 PM EST	Snow Squall Warning	GYX	56 min
Nov 21, 3:28 PM EST	Snow Squall Warning	GYX	62 min
Nov 21, 4:15 PM EST	Snow Squall Warning	GYX	60 min
Nov 24, 2:52 PM EST	Winter Weather Advisory	CAR	28 hr
Nov 24, 3:02 PM EST	Winter Weather Advisory	GYX	27 hr
Nov 25, 3:26 PM EST	Winter Storm Watch	GYX	20 hr
Nov 25, 3:49 PM EST	Winter Storm Watch	CAR	24 hr
Nov 26, 3:13 AM EST	Winter Storm Warning	GYX	40 hr
Nov 26, 3:16 AM EST	Winter Storm Warning	CAR	45 hr
Nov 27, 7:19 PM EST	Winter Weather Advisory	GYX	8 hr
Dec 1, 2:39 AM EST	Winter Weather Advisory	GYX	35 hr
Dec 1, 3:35 AM EST	Winter Weather Advisory	CAR	45 hr
Dec 2, 3:30 PM EST	Dense Fog Advisory	GYX	20 hr
Dec 16, 2:58 PM EST	Winter Weather Advisory	CAR	36 hr
Dec 16, 3:11 PM EST	Winter Weather Advisory	GYX	24 hr
Dec 18, 3:04 AM EST	Winter Weather Advisory	CAR	12 hr
Dec 19, 3:50 PM EST	Flood Watch	GYX	65 hr
Dec 20, 2:38 AM EST	Winter Weather Advisory	GYX	31 hr
Dec 20, 3:08 AM EST	Winter Weather Advisory	CAR	32 hr
Dec 21, 7:42 PM EST	Areal Flood Advisory	CAR	6 hr
Dec 22, 5:26 AM EST	Dense Fog Advisory	CAR	4 hr
Dec 22, 5:19 PM EST	Areal Flood Advisory	GYX	5 hr
Dec 27, 3:23 AM EST	Winter Weather Advisory	CAR	43 hr
Dec 27, 3:30 AM EST	Winter Weather Advisory	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	15
Tornado Warning	1
Severe Thunderstorm Watch	1
Mesoscale Discussion	18
Special Weather Statement	36
Flooding
Flash Flood Warning	2
River Flood Warning	2
Flash Flood Watch	2
Flood Watch	4
Areal Flood Advisory	11
Winter
Snow Squall Warning	3
Winter Storm Warning	15
Winter Storm Watch	14
Winter Weather Advisory	47
Heat
Heat Advisory	6
Cold
Freeze Warning	5
Wind Chill Warning	2
Freeze Watch	1
Wind Chill Watch	1
Frost Advisory	8
Wind Chill Advisory	10
Wind and dust
High Wind Warning	2
High Wind Watch	4
Wind Advisory	15
Fog and smoke
Dense Fog Advisory	12

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force now Tornadoes on record Forecast The radar archive 2017 2019

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.