Alert archive / Maine / Penobscot County

Weather alerts in Penobscot County, Maine, 2023

170 weather alerts in 2023, 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 2023. Tap one for its archive.

Alerts: 170
Warnings: 45
Watches: 24
Advisories: 78
Busiest month: December35 alerts
Busiest day: August 13, 202311 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, 2023

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
Tornado warnings	0			0
Severe thunderstorm warnings	16	6	63%	15	93%	18 min
Flash flood warnings	2	0	100%	7	0%

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

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, 4:20 PM EST	Winter Weather Advisory	CAR	23 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 14, 4:13 AM EST	Winter Weather Advisory	CAR	9 hr
Jan 14, 3:05 PM EST	Winter Storm Watch	CAR	13 hr
Jan 14, 3:05 PM EST	Winter Weather Advisory	CAR	60 hr
Jan 15, 4:32 AM EST	Winter Storm Warning	CAR	46 hr
Jan 16, 10:49 AM EST	Mesoscale Discussion	SPC	5 hr
Jan 19, 3:45 PM EST	Winter Storm Warning	CAR	23 hr
Jan 19, 3:45 PM EST	Winter Weather Advisory	CAR	27 hr
Jan 21, 3:16 AM EST	Winter Storm Watch	CAR	24 hr
Jan 22, 3:07 AM EST	Winter Storm Warning	CAR	43 hr
Jan 22, 3:17 AM EST	Winter Weather Advisory	CAR	40 hr
Jan 24, 3:20 AM EST	Winter Storm Watch	CAR	24 hr
Jan 24, 3:37 PM EST	Winter Storm Warning	CAR	46 hr
Jan 26, 7:23 AM EST	Areal Flood Advisory	CAR	5 hr
Jan 28, 2:17 PM EST	Winter Weather Advisory	CAR	31 hr
Feb 1, 2:34 AM EST	Wind Chill Watch	CAR	24 hr
Feb 1, 3:36 PM EST	Winter Storm Watch	CAR	21 hr
Feb 2, 2:41 AM EST	Wind Chill Warning	CAR	60 hr
Feb 2, 12:24 PM EST	Blizzard Warning	CAR	55 hr
Feb 3, 1:57 AM EST	Special Weather Statement	CAR	93 min
Feb 4, 2:54 PM EST	Wind Chill Advisory	CAR	4 hr
Feb 7, 9:15 PM EST	Special Weather Statement	CAR	60 min
Feb 8, 3:14 PM EST	Winter Weather Advisory	CAR	47 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, 3:28 PM EST	Winter Storm Watch	CAR	12 hr
Feb 22, 3:07 AM EST	Winter Storm Warning	CAR	33 hr
Feb 22, 3:07 AM EST	Winter Weather Advisory	CAR	33 hr
Feb 23, 3:52 PM EST	Winter Weather Advisory	CAR	18 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 3, 12:19 PM EST	Winter Storm Warning	CAR	30 hr
Mar 3, 12:19 PM EST	Winter Weather Advisory	CAR	30 hr
Mar 5, 9:32 PM EST	Winter Weather Advisory	CAR	19 hr
Mar 5, 9:39 PM EST	Wind Advisory	CAR	19 hr
Mar 13, 3:21 AM EDT	Winter Storm Watch	CAR	12 hr
Mar 13, 3:05 PM EDT	Winter Storm Warning	CAR	36 hr
Mar 13, 3:05 PM EDT	Winter Weather Advisory	CAR	36 hr
Mar 14, 4:55 PM EDT	Special Weather Statement	CAR	95 min
Mar 14, 6:37 PM EDT	Special Weather Statement	CAR	53 min
Mar 24, 3:18 PM EDT	Winter Storm Watch	CAR	13 hr
Mar 25, 3:52 AM EDT	Winter Weather Advisory	CAR	38 hr
Mar 30, 3:46 AM EDT	Special Weather Statement	CAR	59 min
Mar 30, 4:49 AM EDT	Special Weather Statement	CAR	56 min
Apr 4, 2:54 PM EDT	Winter Weather Advisory	CAR	42 hr
Apr 19, 9:49 AM EDT	Areal Flood Advisory	CAR	24 hr
Apr 27, 4:03 AM EDT	Dense Fog Advisory	CAR	4 hr
Apr 30, 2:46 AM EDT	Wind Advisory	CAR	33 hr
May 1, 7:23 AM EDT	Areal Flood Advisory	CAR	5 hr
May 17, 6:04 PM EDT	Freeze Warning	CAR	12 hr
May 18, 2:45 PM EDT	Frost Advisory	CAR	16 hr
May 21, 2:17 PM EDT	Frost Advisory	CAR	16 hr
May 22, 3:10 PM EDT	Frost Advisory	CAR	15 hr
Jun 2, 12:50 PM EDT	Special Weather Statement	CAR	40 min
Jun 2, 1:52 PM EDT	Areal Flood Advisory	CAR	3 hr
Jun 2, 2:43 PM EDT	Special Weather Statement	CAR	47 min
Jun 2, 3:15 PM EDT	Severe Thunderstorm Warning	CAR	45 min
Jun 13, 3:35 AM EDT	Dense Fog Advisory	CAR	6 hr
Jun 16, 2:49 AM EDT	Dense Fog Advisory	CAR	5 hr
Jun 16, 5:08 PM EDT	Special Weather Statement	CAR	37 min
Jun 16, 7:21 PM EDT	Areal Flood Advisory	CAR	116 min
Jun 23, 10:17 PM EDT	Dense Fog Advisory	CAR	11 hr
Jun 24, 8:22 PM EDT	Dense Fog Advisory	CAR	13 hr
Jun 25, 8:25 PM EDT	Areal Flood Advisory	CAR	113 min
Jul 2, 3:21 PM EDT	Flood Watch	CAR	14 hr
Jul 5, 5:28 PM EDT	Severe Thunderstorm Warning	CAR	47 min
Jul 5, 6:12 PM EDT	Severe Thunderstorm Warning	CAR	18 min
Jul 5, 6:33 PM EDT	Special Weather Statement	CAR	42 min
Jul 6, 2:39 AM EDT	Heat Advisory	CAR	15 hr
Jul 7, 8:59 AM EDT	Flood Watch	CAR	12 hr
Jul 7, 1:46 PM EDT	Severe Thunderstorm Warning	CAR	44 min
Jul 7, 3:25 PM EDT	Severe Thunderstorm Warning	CAR	26 min
Jul 7, 5:00 PM EDT	Areal Flood Advisory	CAR	2 hr
Jul 7, 5:34 PM EDT	Areal Flood Advisory	CAR	2 hr
Jul 15, 12:16 PM EDT	Flood Watch	CAR	41 hr
Jul 15, 12:26 PM EDT	Special Weather Statement	CAR	64 min
Jul 16, 2:11 PM EDT	Flash Flood Warning	CAR	7 hr
Jul 16, 6:01 PM EDT	Areal Flood Advisory	CAR	11 hr
Jul 17, 7:49 PM EDT	Dense Fog Advisory	CAR	14 hr
Jul 18, 4:35 PM EDT	Areal Flood Advisory	CAR	3 hr
Jul 25, 5:12 PM EDT	Special Weather Statement	CAR	48 min
Jul 25, 6:03 PM EDT	Special Weather Statement	CAR	57 min
Jul 25, 6:34 PM EDT	Areal Flood Advisory	CAR	86 min
Jul 25, 8:57 PM EDT	Special Weather Statement	CAR	48 min
Jul 27, 7:02 PM EDT	Areal Flood Advisory	CAR	2 hr
Jul 28, 3:04 PM EDT	Mesoscale Discussion	SPC	2 hr
Aug 5, 1:29 PM EDT	Special Weather Statement	CAR	46 min
Aug 5, 1:33 PM EDT	Severe Thunderstorm Warning	CAR	42 min
Aug 5, 2:11 PM EDT	Special Weather Statement	CAR	49 min
Aug 5, 2:17 PM EDT	Severe Thunderstorm Warning	CAR	43 min
Aug 7, 3:09 PM EDT	Flood Watch	CAR	31 hr
Aug 8, 3:33 PM EDT	Areal Flood Advisory	CAR	3 hr
Aug 13, 1:51 PM EDT	Severe Thunderstorm Watch	SPC	6 hr
Aug 13, 3:12 PM EDT	Severe Thunderstorm Warning Considerable damage threat	CAR	63 min
Aug 13, 3:30 PM EDT	Severe Thunderstorm Warning	CAR	45 min
Aug 13, 3:58 PM EDT	Mesoscale Discussion	SPC	62 min
Aug 13, 4:06 PM EDT	Severe Thunderstorm Warning	CAR	54 min
Aug 13, 4:07 PM EDT	Areal Flood Advisory	CAR	3 hr
Aug 13, 4:13 PM EDT	Severe Thunderstorm Warning	CAR	47 min
Aug 13, 4:15 PM EDT	Severe Thunderstorm Warning	CAR	45 min
Aug 13, 5:18 PM EDT	Areal Flood Advisory	CAR	3 hr
Aug 13, 5:18 PM EDT	Severe Thunderstorm Warning	CAR	42 min
Aug 13, 5:56 PM EDT	Severe Thunderstorm Warning	CAR	20 min
Aug 14, 1:11 AM EDT	Dense Fog Advisory	CAR	6 hr
Sep 7, 3:51 AM EDT	Heat Advisory	CAR	13 hr
Sep 7, 6:45 PM EDT	Severe Thunderstorm Warning	CAR	45 min
Sep 7, 7:14 PM EDT	Severe Thunderstorm Warning	CAR	46 min
Sep 7, 9:08 PM EDT	Special Weather Statement	CAR	52 min
Sep 7, 9:47 PM EDT	Special Weather Statement	CAR	43 min
Sep 7, 10:22 PM EDT	Special Weather Statement	CAR	53 min
Sep 13, 5:03 PM EDT	Tropical Storm Watch	CAR	24 hr
Sep 14, 5:27 PM EDT	Tropical Storm Warning	CAR	53 hr
Sep 15, 2:32 PM EDT	Flood Watch	CAR	33 hr
Sep 16, 1:52 PM EDT	Areal Flood Advisory	CAR	8 hr
Sep 16, 5:45 PM EDT	Areal Flood Advisory	CAR	6 hr
Sep 16, 8:33 PM EDT	Areal Flood Advisory	CAR	3 hr
Sep 18, 3:01 AM EDT	Flood Watch	CAR	27 hr
Sep 25, 4:02 AM EDT	Frost Advisory	CAR	27 hr
Sep 29, 6:43 AM EDT	Dense Fog Advisory	CAR	2 hr
Sep 30, 4:23 AM EDT	Dense Fog Advisory	CAR	6 hr
Oct 5, 2:50 AM EDT	Dense Fog Advisory	CAR	8 hr
Oct 6, 2:28 PM EDT	Flood Watch	CAR	40 hr
Oct 7, 10:37 PM EDT	Areal Flood Advisory	CAR	3 hr
Oct 10, 5:22 AM EDT	Dense Fog Advisory	CAR	4 hr
Oct 12, 6:35 AM EDT	Dense Fog Advisory	CAR	2 hr
Oct 29, 2:00 AM EDT	Winter Weather Advisory	CAR	42 hr
Nov 7, 2:52 PM EST	Wind Advisory	CAR	26 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 22, 10:11 AM EST	Winter Storm Warning	CAR	12 hr
Nov 27, 12:41 AM EST	Wind Advisory	CAR	10 hr
Nov 27, 9:55 AM EST	River Flood Warning	CAR	2 hr
Dec 2, 3:33 PM EST	Winter Storm Watch	CAR	12 hr
Dec 3, 3:36 AM EST	Winter Storm Warning	CAR	35 hr
Dec 8, 2:55 PM EST	High Wind Watch	CAR	36 hr
Dec 9, 3:40 PM EST	Flood Watch	CAR	63 hr
Dec 10, 2:53 AM EST	Wind Advisory	CAR	25 hr
Dec 10, 4:03 AM EST	Dense Fog Advisory	CAR	7 hr
Dec 11, 5:38 AM EST	Areal Flood Warning	CAR	5 hr
Dec 11, 6:41 AM EST	Flood Watch	CAR	24 hr
Dec 11, 7:14 AM EST	Areal Flood Warning	CAR	6 hr
Dec 11, 8:24 AM EST	Areal Flood Advisory	CAR	3 hr
Dec 11, 8:37 AM EST	Areal Flood Warning	CAR	5 hr
Dec 11, 11:27 AM EST	Areal Flood Advisory	CAR	3 hr
Dec 11, 1:07 PM EST	Areal Flood Warning	CAR	3 hr
Dec 16, 9:08 AM EST	High Wind Watch	CAR	30 hr
Dec 16, 2:49 PM EST	Flood Watch	CAR	58 hr
Dec 17, 2:42 PM EST	High Wind Warning	CAR	30 hr
Dec 17, 2:42 PM EST	Wind Advisory	CAR	30 hr
Dec 18, 10:36 AM EST	Areal Flood Advisory	CAR	6 hr
Dec 18, 12:17 PM EST	River Flood Warning	CAR	3 hr
Dec 18, 12:17 PM EST	River Flood Warning	CAR	42 hr
Dec 18, 12:17 PM EST	River Flood Warning	CAR	55 hr
Dec 18, 12:30 PM EST	Areal Flood Advisory	CAR	78 min
Dec 18, 1:48 PM EST	Flash Flood Warning	CAR	6 hr
Dec 18, 2:52 PM EST	Areal Flood Advisory	CAR	24 hr
Dec 18, 4:04 PM EST	Areal Flood Advisory	CAR	10 hr
Dec 18, 4:24 PM EST	Areal Flood Advisory	CAR	3 hr
Dec 18, 7:44 PM EST	Areal Flood Warning	CAR	13 hr
Dec 18, 8:38 PM EST	Wind Advisory	CAR	106 min
Dec 18, 9:52 PM EST	River Flood Warning	CAR	24 hr
Dec 19, 2:18 AM EST	River Flood Warning	CAR	27 hr
Dec 19, 2:53 AM EST	Areal Flood Advisory	CAR	12 hr
Dec 19, 8:28 AM EST	Areal Flood Advisory	CAR	6 hr
Dec 26, 8:16 PM EST	Dense Fog Advisory	CAR	8 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

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	16
Severe Thunderstorm Watch	1
Mesoscale Discussion	4
Special Weather Statement	19
Flooding
Areal Flood Warning	5
Flash Flood Warning	2
River Flood Warning	6
Flood Watch	10
Areal Flood Advisory	28
Winter
Blizzard Warning	1
Winter Storm Warning	11
Winter Storm Watch	9
Winter Weather Advisory	22
Heat
Heat Advisory	2
Cold
Freeze Warning	1
Wind Chill Warning	1
Wind Chill Watch	1
Frost Advisory	4
Wind Chill Advisory	1
Wind and dust
High Wind Warning	1
High Wind Watch	2
Wind Advisory	7
Fog and smoke
Dense Fog Advisory	14
Tropical
Tropical Storm Warning	1
Tropical Storm Watch	1

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force now Tornadoes on record Forecast The radar archive 2022 2024

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.