Alert archive / Maine / Penobscot County

Weather alerts in Penobscot County, Maine, 2015

174 weather alerts in 2015, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Penobscot County and its neighbors

Each county as a circle sized by its count in 2015. Tap one for its archive.

Alerts: 174
Warnings: 66
Watches: 21
Advisories: 65
Busiest month: August34 alerts
Busiest day: August 4, 201514 alerts

Over time

By month

Warning verification

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

Penobscot County, 2015

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
Tornado warnings	0			0
Severe thunderstorm warnings	46	19	59%	34	74%	25 min
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 Caribou, ME: severe thunderstorm warnings	79	35	56%	112	75%	20 min
NWS Caribou, ME: flash flood warnings	1	1	0%	4	50%	3 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 3, 3:33 AM EST	Winter Weather Advisory	CAR	39 hr
Jan 3, 8:18 PM EST	Mesoscale Discussion	SPC	6 hr
Jan 4, 2:35 PM EST	Wind Chill Warning	CAR	43 hr
Jan 4, 2:35 PM EST	Wind Chill Advisory	CAR	43 hr
Jan 5, 4:21 AM EST	Wind Advisory	CAR	13 hr
Jan 6, 2:41 PM EST	Wind Chill Watch	CAR	13 hr
Jan 7, 3:43 AM EST	Wind Chill Warning	CAR	31 hr
Jan 7, 3:43 AM EST	Wind Chill Advisory	CAR	31 hr
Jan 8, 4:02 PM EST	Winter Weather Advisory	CAR	22 hr
Jan 12, 3:25 AM EST	Wind Chill Advisory	CAR	32 hr
Jan 15, 3:33 PM EST	Wind Chill Watch	CAR	12 hr
Jan 16, 3:06 AM EST	Wind Chill Warning	CAR	31 hr
Jan 16, 3:06 AM EST	Wind Chill Advisory	CAR	31 hr
Jan 17, 10:09 AM EST	Wind Chill Advisory	CAR	111 min
Jan 18, 3:40 AM EST	Wind Advisory	CAR	26 hr
Jan 18, 3:51 AM EST	Freezing Rain Advisory	CAR	22 hr
Jan 23, 4:22 AM EST	Winter Storm Watch	CAR	11 hr
Jan 23, 3:12 PM EST	Winter Storm Warning	CAR	34 hr
Jan 23, 3:12 PM EST	Winter Weather Advisory	CAR	34 hr
Jan 25, 4:41 AM EST	Wind Chill Advisory	CAR	23 hr
Jan 25, 4:41 AM EST	Winter Storm Watch	CAR	11 hr
Jan 25, 3:27 PM EST	Blizzard Warning	CAR	54 hr
Jan 25, 3:27 PM EST	Winter Storm Warning	CAR	60 hr
Jan 27, 10:24 AM EST	Mesoscale Discussion	SPC	5 hr
Jan 27, 9:49 PM EST	Winter Weather Advisory	CAR	5 hr
Jan 28, 3:18 AM EST	Winter Storm Watch	CAR	24 hr
Jan 29, 3:11 AM EST	Winter Storm Warning	CAR	65 hr
Jan 31, 3:16 PM EST	Wind Chill Advisory	CAR	37 hr
Jan 31, 8:36 PM EST	Winter Storm Watch	CAR	19 hr
Feb 1, 3:42 AM EST	Winter Storm Warning	CAR	48 hr
Feb 2, 8:48 AM EST	Mesoscale Discussion	SPC	5 hr
Feb 2, 2:14 PM EST	Mesoscale Discussion	SPC	5 hr
Feb 2, 3:06 PM EST	Wind Chill Advisory	CAR	21 hr
Feb 4, 3:26 AM EST	Winter Weather Advisory	CAR	36 hr
Feb 5, 3:45 PM EST	Wind Chill Advisory	CAR	17 hr
Feb 7, 2:32 AM EST	Winter Storm Watch	CAR	24 hr
Feb 8, 2:17 AM EST	Winter Weather Advisory	CAR	37 hr
Feb 12, 4:05 PM EST	Blizzard Watch	CAR	24 hr
Feb 12, 4:05 PM EST	Winter Storm Watch	CAR	24 hr
Feb 13, 3:55 PM EST	Blizzard Warning	CAR	54 hr
Feb 13, 3:55 PM EST	Winter Storm Warning	CAR	54 hr
Feb 15, 4:00 AM EST	Winter Weather Advisory	CAR	36 hr
Feb 15, 3:08 PM EST	Wind Chill Advisory	CAR	35 hr
Feb 18, 2:57 AM EST	Winter Storm Watch	CAR	13 hr
Feb 18, 3:35 PM EST	Winter Storm Warning	CAR	36 hr
Feb 20, 8:12 AM EST	Winter Weather Advisory	CAR	7 hr
Feb 20, 3:24 PM EST	Winter Storm Watch	CAR	12 hr
Feb 21, 3:01 AM EST	Winter Weather Advisory	CAR	27 hr
Feb 22, 2:56 PM EST	Wind Chill Advisory	CAR	39 hr
Feb 24, 4:25 PM EST	Winter Weather Advisory	CAR	21 hr
Feb 25, 8:48 AM EST	Winter Storm Warning	CAR	4 hr
Mar 3, 2:51 AM EST	Winter Weather Advisory	CAR	30 hr
Mar 10, 12:50 AM EDT	Special Weather Statement	CAR	115 min
Mar 13, 3:47 PM EDT	Winter Storm Watch	CAR	12 hr
Mar 14, 3:40 AM EDT	Winter Storm Warning	CAR	43 hr
Mar 15, 6:12 AM EDT	Mesoscale Discussion	SPC	6 hr
Mar 16, 3:47 PM EDT	Winter Weather Advisory	CAR	53 hr
Mar 21, 4:38 PM EDT	Winter Weather Advisory	CAR	27 hr
Mar 21, 4:48 PM EDT	Wind Advisory	CAR	27 hr
Apr 2, 5:21 AM EDT	Winter Weather Advisory	CAR	24 hr
Apr 3, 5:15 AM EDT	Winter Weather Advisory	CAR	37 hr
Apr 4, 12:48 PM EDT	Winter Storm Warning	CAR	6 hr
Apr 4, 6:23 PM EDT	Winter Weather Advisory	CAR	6 hr
Apr 9, 3:20 AM EDT	Winter Weather Advisory	CAR	34 hr
Apr 10, 9:12 PM EDT	Dense Fog Advisory	CAR	8 hr
Apr 19, 6:36 PM EDT	River Flood Warning	CAR	9 days
Apr 22, 6:01 AM EDT	Dense Fog Advisory	CAR	4 hr
May 13, 3:03 PM EDT	Frost Advisory	CAR	16 hr
May 22, 2:36 PM EDT	Frost Advisory	CAR	15 hr
May 27, 5:48 PM EDT	Severe Thunderstorm Warning	CAR	42 min
May 27, 5:51 PM EDT	Severe Thunderstorm Warning	CAR	39 min
May 27, 6:17 PM EDT	Mesoscale Discussion	SPC	58 min
May 27, 6:18 PM EDT	Severe Thunderstorm Warning	CAR	42 min
May 27, 7:25 PM EDT	Severe Thunderstorm Warning	CAR	35 min
May 27, 7:44 PM EDT	Severe Thunderstorm Warning	CAR	46 min
May 28, 11:16 AM EDT	Mesoscale Discussion	SPC	89 min
May 28, 11:30 AM EDT	Mesoscale Discussion	SPC	60 min
May 28, 11:54 AM EDT	Severe Thunderstorm Watch	SPC	7 hr
May 28, 12:25 PM EDT	Severe Thunderstorm Warning	CAR	35 min
May 28, 1:07 PM EDT	Severe Thunderstorm Warning	CAR	38 min
May 28, 1:27 PM EDT	Severe Thunderstorm Warning	CAR	63 min
May 28, 1:43 PM EDT	Severe Thunderstorm Warning	CAR	62 min
May 28, 2:30 PM EDT	Severe Thunderstorm Warning	CAR	43 min
May 28, 3:08 PM EDT	Mesoscale Discussion	SPC	97 min
May 28, 4:24 PM EDT	Severe Thunderstorm Warning	CAR	66 min
May 28, 4:26 PM EDT	Mesoscale Discussion	SPC	64 min
Jun 6, 2:49 PM EDT	Frost Advisory	CAR	16 hr
Jun 9, 10:13 PM EDT	Dense Fog Advisory	CAR	10 hr
Jun 11, 3:17 AM EDT	Severe Thunderstorm Warning	CAR	43 min
Jun 11, 4:25 AM EDT	Severe Thunderstorm Warning	CAR	15 min
Jun 11, 4:35 AM EDT	Severe Thunderstorm Warning	CAR	40 min
Jun 11, 5:10 AM EDT	Severe Thunderstorm Warning	CAR	50 min
Jun 23, 8:01 PM EDT	Severe Thunderstorm Warning	CAR	44 min
Jun 23, 8:47 PM EDT	Severe Thunderstorm Warning	CAR	43 min
Jun 23, 9:51 PM EDT	Severe Thunderstorm Warning	CAR	39 min
Jul 2, 12:33 AM EDT	Dense Fog Advisory	CAR	7 hr
Jul 24, 11:24 AM EDT	Areal Flood Advisory	CAR	3 hr
Jul 24, 5:52 PM EDT	Areal Flood Advisory	CAR	113 min
Jul 28, 4:59 AM EDT	Areal Flood Advisory	CAR	2 hr
Jul 28, 5:01 AM EDT	Severe Thunderstorm Warning	CAR	44 min
Jul 28, 2:22 PM EDT	Mesoscale Discussion	SPC	113 min
Jul 28, 2:32 PM EDT	Special Weather Statement	CAR	28 min
Jul 28, 2:45 PM EDT	Severe Thunderstorm Warning	CAR	45 min
Aug 1, 11:51 AM EDT	Mesoscale Discussion	SPC	54 min
Aug 1, 12:55 PM EDT	Severe Thunderstorm Warning	CAR	50 min
Aug 1, 1:25 PM EDT	Severe Thunderstorm Warning	CAR	65 min
Aug 1, 1:51 PM EDT	Severe Thunderstorm Warning	CAR	39 min
Aug 1, 2:06 PM EDT	Severe Thunderstorm Warning	CAR	54 min
Aug 1, 2:34 PM EDT	Severe Thunderstorm Warning	CAR	41 min
Aug 1, 3:01 PM EDT	Severe Thunderstorm Warning	CAR	59 min
Aug 1, 3:58 PM EDT	Severe Thunderstorm Warning	CAR	47 min
Aug 3, 1:16 PM EDT	Severe Thunderstorm Watch	SPC	8 hr
Aug 3, 2:24 PM EDT	Severe Thunderstorm Warning	CAR	51 min
Aug 3, 3:33 PM EDT	Severe Thunderstorm Warning	CAR	42 min
Aug 3, 6:41 PM EDT	Severe Thunderstorm Warning	CAR	64 min
Aug 3, 8:12 PM EDT	Severe Thunderstorm Warning	CAR	48 min
Aug 4, 12:18 PM EDT	Severe Thunderstorm Watch	SPC	8 hr
Aug 4, 1:42 PM EDT	Severe Thunderstorm Warning	CAR	48 min
Aug 4, 2:21 PM EDT	Mesoscale Discussion	SPC	84 min
Aug 4, 2:26 PM EDT	Severe Thunderstorm Warning	CAR	64 min
Aug 4, 3:08 PM EDT	Severe Thunderstorm Warning	CAR	52 min
Aug 4, 3:20 PM EDT	Severe Thunderstorm Warning	CAR	55 min
Aug 4, 3:40 PM EDT	Severe Thunderstorm Warning	CAR	50 min
Aug 4, 4:12 PM EDT	Severe Thunderstorm Warning	CAR	63 min
Aug 4, 4:14 PM EDT	Mesoscale Discussion	SPC	91 min
Aug 4, 4:30 PM EDT	Severe Thunderstorm Warning	CAR	45 min
Aug 4, 5:09 PM EDT	Severe Thunderstorm Warning	CAR	66 min
Aug 4, 5:14 PM EDT	Severe Thunderstorm Warning	CAR	46 min
Aug 4, 5:58 PM EDT	Severe Thunderstorm Warning	CAR	47 min
Aug 5, 12:14 PM EDT	Mesoscale Discussion	SPC	3 hr
Aug 5, 4:35 PM EDT	Severe Thunderstorm Warning	CAR	40 min
Aug 15, 2:21 PM EDT	Special Weather Statement	CAR	24 min
Aug 19, 6:24 AM EDT	Dense Fog Advisory	CAR	3 hr
Aug 21, 10:05 PM EDT	Areal Flood Advisory	CAR	4 hr
Aug 23, 5:00 PM EDT	Areal Flood Advisory	CAR	3 hr
Aug 26, 10:52 AM EDT	Areal Flood Advisory	CAR	3 hr
Aug 26, 5:26 PM EDT	Special Weather Statement	CAR	49 min
Sep 9, 4:16 PM EDT	Mesoscale Discussion	SPC	89 min
Sep 9, 4:51 PM EDT	Severe Thunderstorm Warning	CAR	54 min
Sep 9, 5:06 PM EDT	Severe Thunderstorm Warning	CAR	54 min
Sep 9, 5:44 PM EDT	Severe Thunderstorm Warning	CAR	61 min
Sep 9, 7:36 PM EDT	Areal Flood Advisory	CAR	114 min
Sep 23, 3:26 PM EDT	Freeze Watch	CAR	23 hr
Sep 24, 2:47 PM EDT	Frost Advisory	CAR	15 hr
Sep 24, 2:47 PM EDT	Freeze Warning	CAR	15 hr
Sep 25, 5:54 AM EDT	Freeze Watch	CAR	9 hr
Sep 25, 3:09 PM EDT	Frost Advisory	CAR	15 hr
Sep 26, 6:27 AM EDT	Frost Advisory	CAR	2 hr
Sep 26, 8:36 AM EDT	Frost Advisory	CAR	23 hr
Sep 29, 12:28 PM EDT	Flood Watch	CAR	42 hr
Sep 30, 11:47 AM EDT	Areal Flood Warning	CAR	9 hr
Oct 28, 4:08 AM EDT	High Wind Warning	CAR	33 hr
Oct 29, 5:08 PM EDT	Severe Thunderstorm Warning	CAR	55 min
Nov 5, 11:49 PM EST	Dense Fog Advisory	CAR	9 hr
Nov 22, 3:26 PM EST	Winter Weather Advisory	CAR	17 hr
Dec 1, 3:14 AM EST	Freezing Rain Advisory	CAR	30 hr
Dec 2, 9:53 AM EST	Winter Storm Watch	CAR	5 hr
Dec 2, 2:51 PM EST	Winter Storm Warning	CAR	33 hr
Dec 2, 2:51 PM EST	Winter Weather Advisory	CAR	33 hr
Dec 10, 10:59 PM EST	Dense Fog Advisory	CAR	13 hr
Dec 13, 4:34 AM EST	Winter Storm Watch	CAR	11 hr
Dec 13, 3:54 PM EST	Winter Weather Advisory	CAR	50 hr
Dec 14, 5:05 AM EST	Mesoscale Discussion	SPC	4 hr
Dec 16, 3:50 PM EST	Freezing Rain Advisory	CAR	26 hr
Dec 18, 8:19 AM EST	Dense Fog Advisory	CAR	3 hr
Dec 21, 3:05 PM EST	Winter Weather Advisory	CAR	11 hr
Dec 22, 2:23 AM EST	Winter Weather Advisory	CAR	23 hr
Dec 23, 8:42 AM EST	Dense Fog Advisory	CAR	11 hr
Dec 24, 11:14 AM EST	Dense Fog Advisory	CAR	108 min
Dec 25, 3:02 PM EST	Winter Weather Advisory	CAR	51 hr
Dec 27, 6:19 PM EST	Winter Storm Watch	CAR	21 hr
Dec 28, 3:41 PM EST	Winter Storm Warning	CAR	31 hr
Dec 29, 4:47 AM EST	Mesoscale Discussion	SPC	6 hr
Dec 30, 4:08 PM EST	Winter Weather Advisory	CAR	12 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	46
Severe Thunderstorm Watch	3
Mesoscale Discussion	18
Special Weather Statement	4
Flooding
Areal Flood Warning	1
River Flood Warning	1
Flood Watch	1
Areal Flood Advisory	7
Winter
Blizzard Warning	2
Winter Storm Warning	11
Blizzard Watch	1
Winter Storm Watch	12
Freezing Rain Advisory	3
Winter Weather Advisory	24
Cold
Freeze Warning	1
Wind Chill Warning	3
Freeze Watch	2
Wind Chill Watch	2
Frost Advisory	7
Wind Chill Advisory	11
Wind and dust
High Wind Warning	1
Wind Advisory	3
Fog and smoke
Dense Fog Advisory	10

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force now Tornadoes on record Forecast The radar archive 2014 2016

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.