Alert archive / Maine / Penobscot County

Weather alerts in Penobscot County, Maine, 2024

150 weather alerts in 2024, 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 2024. Tap one for its archive.

Alerts: 150
Warnings: 50
Watches: 15
Advisories: 55
Busiest month: June32 alerts
Busiest day: June 30, 202410 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, 2024

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
Tornado warnings	0			0
Severe thunderstorm warnings	28	19	32%	91	81%	21 min
Flash flood warnings	3	2	33%	3	100%	53 min

Each office's whole area, 2024

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS Caribou, ME: tornado warnings	1	0	100%	0
NWS Caribou, ME: severe thunderstorm warnings	45	26	42%	141	77%	21 min
NWS Caribou, ME: flash flood warnings	4	2	50%	22	23%	122 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, 12:56 PM EST	Special Weather Statement	CAR	64 min
Jan 4, 2:03 PM EST	Special Weather Statement	CAR	57 min
Jan 6, 2:46 AM EST	Winter Weather Advisory	CAR	44 hr
Jan 8, 3:58 AM EST	Winter Storm Watch	CAR	24 hr
Jan 8, 4:08 AM EST	High Wind Watch	CAR	24 hr
Jan 9, 3:37 AM EST	Winter Storm Warning	CAR	33 hr
Jan 9, 3:41 AM EST	High Wind Warning	CAR	33 hr
Jan 10, 5:01 AM EST	River Flood Warning	CAR	7 hr
Jan 12, 3:44 AM EST	Winter Weather Advisory	CAR	39 hr
Jan 13, 11:03 AM EST	River Flood Warning	CAR	3 hr
Jan 13, 11:16 AM EST	Wind Advisory	CAR	7 hr
Jan 13, 4:22 PM EST	Winter Weather Advisory	CAR	3 hr
Jan 14, 4:08 PM EST	Mesoscale Discussion	SPC	4 hr
Jan 15, 2:50 AM EST	Winter Storm Watch	CAR	13 hr
Jan 15, 3:55 PM EST	Winter Storm Warning	CAR	33 hr
Jan 15, 3:55 PM EST	Winter Weather Advisory	CAR	33 hr
Jan 16, 1:49 PM EST	Mesoscale Discussion	SPC	4 hr
Jan 24, 3:07 AM EST	Winter Weather Advisory	CAR	27 hr
Jan 25, 2:38 PM EST	Winter Weather Advisory	CAR	28 hr
Jan 31, 2:43 PM EST	Winter Weather Advisory	CAR	36 hr
Feb 17, 2:39 PM EST	Special Weather Statement	CAR	66 min
Feb 17, 3:47 PM EST	Special Weather Statement	CAR	58 min
Feb 27, 3:56 PM EST	Flood Watch	CAR	35 hr
Feb 27, 4:05 PM EST	Wind Advisory	CAR	35 hr
Feb 27, 9:29 PM EST	Dense Fog Advisory	CAR	9 hr
Mar 9, 2:20 PM EST	Winter Weather Advisory	CAR	23 hr
Mar 9, 2:26 PM EST	Wind Advisory	CAR	22 hr
Mar 10, 7:03 AM EDT	River Flood Warning	CAR	7 hr
Mar 10, 5:53 PM EDT	Wind Advisory	CAR	27 hr
Mar 20, 3:55 AM EDT	Winter Storm Watch	CAR	12 hr
Mar 20, 3:47 PM EDT	Winter Storm Warning	CAR	28 hr
Mar 20, 3:47 PM EDT	Winter Weather Advisory	CAR	25 hr
Mar 21, 7:50 AM EDT	Special Weather Statement	CAR	55 min
Mar 21, 8:35 AM EDT	Blizzard Warning	CAR	5 hr
Mar 21, 8:08 PM EDT	Winter Storm Watch	CAR	20 hr
Mar 22, 4:11 AM EDT	Winter Storm Warning	CAR	47 hr
Mar 23, 7:10 PM EDT	Mesoscale Discussion	SPC	5 hr
Mar 27, 3:01 PM EDT	Flood Watch	CAR	53 hr
Mar 28, 12:01 AM EDT	Dense Fog Advisory	CAR	9 hr
Mar 28, 10:33 AM EDT	Areal Flood Advisory	CAR	5 hr
Mar 28, 6:12 PM EDT	Dense Fog Advisory	CAR	9 hr
Mar 29, 3:02 AM EDT	Winter Weather Advisory	CAR	30 hr
Mar 29, 11:11 PM EDT	Wind Advisory	CAR	16 hr
Mar 30, 8:06 AM EDT	River Flood Warning	CAR	60 hr
Mar 30, 8:55 AM EDT	Areal Flood Advisory	CAR	13 hr
Apr 1, 3:40 PM EDT	Winter Storm Watch	CAR	24 hr
Apr 1, 8:18 PM EDT	River Flood Warning	CAR	33 hr
Apr 2, 3:19 PM EDT	Winter Storm Warning	CAR	60 hr
Apr 2, 3:19 PM EDT	Winter Weather Advisory	CAR	60 hr
Apr 11, 2:29 AM EDT	Wind Advisory	CAR	42 hr
May 23, 12:03 PM EDT	Mesoscale Discussion	SPC	117 min
May 23, 12:48 PM EDT	Severe Thunderstorm Watch	SPC	4 hr
May 23, 2:11 PM EDT	Special Weather Statement	CAR	49 min
May 23, 3:24 PM EDT	Severe Thunderstorm Warning	CAR	51 min
May 23, 3:29 PM EDT	Mesoscale Discussion	SPC	91 min
May 28, 1:45 PM EDT	Mesoscale Discussion	SPC	90 min
May 28, 3:20 PM EDT	Special Weather Statement	CAR	40 min
Jun 5, 12:54 PM EDT	Mesoscale Discussion	SPC	2 hr
Jun 5, 3:55 PM EDT	Severe Thunderstorm Warning	CAR	50 min
Jun 5, 4:45 PM EDT	Severe Thunderstorm Warning	CAR	30 min
Jun 5, 4:46 PM EDT	Severe Thunderstorm Warning	CAR	44 min
Jun 5, 4:54 PM EDT	Areal Flood Advisory	CAR	4 hr
Jun 5, 6:31 PM EDT	Severe Thunderstorm Warning	CAR	29 min
Jun 5, 6:53 PM EDT	Severe Thunderstorm Warning	CAR	37 min
Jun 14, 1:18 PM EDT	Mesoscale Discussion	SPC	117 min
Jun 14, 1:40 PM EDT	Special Weather Statement	CAR	50 min
Jun 14, 2:00 PM EDT	Severe Thunderstorm Warning	CAR	30 min
Jun 14, 2:25 PM EDT	Severe Thunderstorm Warning	CAR	15 min
Jun 14, 3:53 PM EDT	Severe Thunderstorm Warning	CAR	37 min
Jun 17, 2:56 PM EDT	Heat Advisory	CAR	53 hr
Jun 18, 2:46 PM EDT	Excessive Heat Warning	CAR	29 hr
Jun 19, 3:53 PM EDT	Special Weather Statement	CAR	52 min
Jun 19, 4:05 PM EDT	Special Weather Statement	CAR	40 min
Jun 19, 4:17 PM EDT	Severe Thunderstorm Warning	CAR	43 min
Jun 19, 8:06 PM EDT	Excessive Heat Warning	CAR	23 hr
Jun 19, 8:06 PM EDT	Heat Advisory	CAR	23 hr
Jun 20, 12:59 PM EDT	Severe Thunderstorm Watch	SPC	9 hr
Jun 20, 3:45 PM EDT	Severe Thunderstorm Warning	CAR	45 min
Jun 20, 4:19 PM EDT	Severe Thunderstorm Warning	CAR	56 min
Jun 30, 10:34 AM EDT	Mesoscale Discussion	SPC	116 min
Jun 30, 12:52 PM EDT	Severe Thunderstorm Watch	SPC	6 hr
Jun 30, 1:28 PM EDT	Special Weather Statement	CAR	47 min
Jun 30, 1:34 PM EDT	Severe Thunderstorm Warning Considerable damage threat	CAR	41 min
Jun 30, 2:07 PM EDT	Severe Thunderstorm Warning Considerable damage threat	CAR	53 min
Jun 30, 2:50 PM EDT	Severe Thunderstorm Warning Considerable damage threat	CAR	40 min
Jun 30, 3:21 PM EDT	Mesoscale Discussion	SPC	114 min
Jun 30, 3:29 PM EDT	Severe Thunderstorm Warning Considerable damage threat	CAR	31 min
Jun 30, 3:55 PM EDT	Severe Thunderstorm Warning Considerable damage threat	CAR	50 min
Jun 30, 4:39 PM EDT	Severe Thunderstorm Warning	CAR	51 min
Jul 5, 1:02 PM EDT	Severe Thunderstorm Warning	CAR	37 min
Jul 5, 2:10 PM EDT	Areal Flood Advisory	CAR	3 hr
Jul 5, 3:19 PM EDT	Severe Thunderstorm Warning	CAR	56 min
Jul 6, 6:55 PM EDT	Areal Flood Advisory	CAR	110 min
Jul 9, 3:28 PM EDT	Flood Watch	CAR	44 hr
Jul 9, 4:05 PM EDT	Severe Thunderstorm Warning	CAR	40 min
Jul 9, 4:19 PM EDT	Special Weather Statement	CAR	41 min
Jul 9, 4:29 PM EDT	Severe Thunderstorm Warning	CAR	61 min
Jul 9, 5:13 PM EDT	Severe Thunderstorm Warning	CAR	62 min
Jul 10, 11:16 PM EDT	Flash Flood Warning	CAR	5 hr
Jul 10, 11:47 PM EDT	Flash Flood Warning	CAR	4 hr
Jul 11, 12:57 AM EDT	Areal Flood Advisory	CAR	10 hr
Jul 11, 2:23 AM EDT	Areal Flood Advisory	CAR	7 hr
Jul 11, 3:25 AM EDT	Areal Flood Advisory	CAR	8 hr
Jul 11, 4:05 AM EDT	Areal Flood Warning	CAR	7 hr
Jul 11, 8:00 AM EDT	Flash Flood Warning	CAR	2 hr
Jul 11, 8:48 AM EDT	Areal Flood Advisory	CAR	3 hr
Jul 11, 5:13 PM EDT	Special Weather Statement	CAR	47 min
Jul 11, 5:54 PM EDT	Special Weather Statement	CAR	51 min
Jul 13, 1:13 PM EDT	Mesoscale Discussion	SPC	3 hr
Jul 13, 3:13 PM EDT	Severe Thunderstorm Warning Considerable damage threat	CAR	47 min
Jul 13, 6:05 PM EDT	Areal Flood Advisory	CAR	112 min
Jul 13, 8:14 PM EDT	Special Weather Statement	CAR	46 min
Jul 13, 8:56 PM EDT	Severe Thunderstorm Warning	CAR	64 min
Jul 13, 9:38 PM EDT	Severe Thunderstorm Warning	CAR	52 min
Jul 15, 3:27 PM EDT	Heat Advisory	CAR	24 hr
Jul 16, 6:46 AM EDT	Areal Flood Advisory	CAR	119 min
Jul 16, 7:10 AM EDT	Special Weather Statement	CAR	50 min
Jul 16, 3:41 PM EDT	Heat Advisory	CAR	25 hr
Jul 17, 7:11 PM EDT	Areal Flood Advisory	CAR	2 hr
Jul 24, 5:33 AM EDT	Dense Fog Advisory	CAR	2 hr
Jul 30, 4:27 PM EDT	Severe Thunderstorm Warning	CAR	48 min
Aug 2, 2:40 AM EDT	Heat Advisory	CAR	14 hr
Aug 4, 1:34 PM EDT	Mesoscale Discussion	SPC	2 hr
Aug 4, 3:52 PM EDT	Severe Thunderstorm Warning	CAR	38 min
Aug 16, 5:29 AM EDT	Dense Fog Advisory	CAR	5 hr
Aug 19, 6:00 AM EDT	Dense Fog Advisory	CAR	3 hr
Aug 26, 5:41 AM EDT	Areal Flood Advisory	CAR	4 hr
Aug 26, 7:38 AM EDT	Areal Flood Advisory	CAR	3 hr
Aug 27, 5:45 AM EDT	Dense Fog Advisory	CAR	4 hr
Oct 8, 3:20 PM EDT	Frost Advisory	CAR	17 hr
Oct 12, 6:20 AM EDT	Wind Advisory	CAR	10 hr
Oct 23, 4:15 AM EDT	Dense Fog Advisory	CAR	6 hr
Nov 8, 1:56 PM EST	Special Weather Statement	CAR	64 min
Nov 14, 2:40 AM EST	Winter Weather Advisory	CAR	31 hr
Nov 27, 2:55 PM EST	Winter Storm Warning	CAR	40 hr
Nov 28, 7:08 PM EST	Mesoscale Discussion	SPC	5 hr
Dec 3, 3:25 AM EST	Winter Storm Watch	CAR	24 hr
Dec 4, 3:09 AM EST	Winter Storm Warning	CAR	39 hr
Dec 8, 2:39 AM EST	Winter Weather Advisory	CAR	9 hr
Dec 9, 2:38 PM EST	High Wind Watch	CAR	25 hr
Dec 9, 2:38 PM EST	Winter Weather Advisory	CAR	43 hr
Dec 10, 3:25 PM EST	Flood Watch	CAR	39 hr
Dec 10, 3:25 PM EST	High Wind Warning	CAR	36 hr
Dec 10, 3:25 PM EST	Wind Advisory	CAR	3 hr
Dec 11, 6:31 PM EST	Dense Fog Advisory	CAR	9 hr
Dec 16, 2:51 PM EST	Winter Weather Advisory	CAR	13 hr
Dec 22, 2:41 PM EST	Winter Weather Advisory	CAR	46 hr
Dec 23, 2:18 PM EST	Winter Storm Warning	CAR	26 hr
Dec 28, 3:49 AM EST	Winter Weather Advisory	CAR	41 hr
Dec 29, 3:27 PM EST	Dense Fog Advisory	CAR	18 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	28
Severe Thunderstorm Watch	3
Mesoscale Discussion	13
Special Weather Statement	17
Flooding
Areal Flood Warning	1
Flash Flood Warning	3
River Flood Warning	5
Flood Watch	4
Areal Flood Advisory	14
Winter
Blizzard Warning	1
Winter Storm Warning	8
Winter Storm Watch	6
Winter Weather Advisory	17
Heat
Excessive Heat Warning	2
Heat Advisory	5
Cold
Frost Advisory	1
Wind and dust
High Wind Warning	2
High Wind Watch	2
Wind Advisory	8
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 2023 2025

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.