Alert archive / Tennessee / Blount County

Weather alerts in Blount County, Tennessee, 2024

192 weather alerts in 2024, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Blount County and its neighbors

Each county as a circle sized by its count in 2024. Tap one for its archive.

Alerts: 192
Warnings: 56
Watches: 22
Advisories: 79
Busiest month: May37 alerts
Busiest day: July 30, 202412 alerts

Over time

By month

Warning verification

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

Blount County, 2024

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
Tornado warnings	0			0
Severe thunderstorm warnings	26	23	12%	15	73%	26 min
Flash flood warnings	9	5	44%	1	100%	50 min

Each office's whole area, 2024

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS Morristown, TN: tornado warnings	18	3	83%	4	100%	11 min
NWS Morristown, TN: severe thunderstorm warnings	189	140	26%	229	86%	22 min
NWS Morristown, TN: flash flood warnings	61	35	43%	92	76%	75 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 5, 3:47 AM EST	Wind Advisory	MRX	11 hr
Jan 5, 3:11 PM EST	High Wind Warning	MRX	19 hr
Jan 7, 3:21 AM EST	High Wind Watch	MRX	24 hr
Jan 8, 3:45 AM EST	High Wind Warning	MRX	39 hr
Jan 8, 3:45 AM EST	Wind Advisory	MRX	57 hr
Jan 9, 9:25 AM EST	Flash Flood Warning	MRX	4 hr
Jan 9, 9:27 AM EST	Areal Flood Advisory	MRX	4 hr
Jan 9, 9:53 AM EST	Areal Flood Advisory	MRX	2 hr
Jan 9, 10:39 AM EST	Areal Flood Advisory	MRX	5 hr
Jan 9, 11:07 AM EST	Areal Flood Advisory	MRX	6 hr
Jan 9, 12:07 PM EST	Areal Flood Warning	MRX	6 hr
Jan 9, 1:34 PM EST	Areal Flood Warning	MRX	11 hr
Jan 9, 8:59 PM EST	Winter Weather Advisory	MRX	12 hr
Jan 10, 3:04 PM EST	High Wind Watch	MRX	12 hr
Jan 11, 3:21 AM EST	High Wind Warning	MRX	39 hr
Jan 11, 3:21 AM EST	Wind Advisory	MRX	60 hr
Jan 13, 3:39 AM EST	Winter Storm Watch	MRX	24 hr
Jan 14, 3:43 AM EST	Winter Storm Warning	MRX	51 hr
Jan 16, 3:22 AM EST	Wind Chill Advisory	MRX	33 hr
Jan 17, 3:18 PM EST	Winter Weather Advisory	MRX	64 hr
Jan 18, 3:04 PM EST	Wind Chill Watch	MRX	13 hr
Jan 19, 3:39 AM EST	Wind Chill Warning	MRX	54 hr
Jan 19, 3:39 AM EST	Wind Chill Advisory	MRX	54 hr
Jan 23, 2:20 PM EST	Flood Watch	MRX	53 hr
Jan 24, 2:37 AM EST	Wind Advisory	MRX	22 hr
Jan 25, 6:02 AM EST	Dense Fog Advisory	MRX	3 hr
Jan 25, 10:07 AM EST	Dense Fog Advisory	MRX	113 min
Jan 26, 3:16 PM EST	Flood Watch	MRX	23 hr
Jan 26, 3:18 PM EST	Wind Advisory	MRX	34 hr
Jan 27, 2:55 PM EST	Winter Storm Warning	MRX	43 hr
Jan 27, 10:00 PM EST	Special Weather Statement	MRX	45 min
Feb 10, 4:19 PM EST	Areal Flood Advisory	MRX	3 hr
Feb 11, 4:06 AM EST	Areal Flood Advisory	MRX	3 hr
Feb 11, 5:36 AM EST	Areal Flood Advisory	MRX	3 hr
Feb 11, 2:41 PM EST	Flood Watch	MRX	21 hr
Feb 12, 3:23 AM EST	Wind Advisory	MRX	28 hr
Feb 12, 4:55 PM EST	Winter Weather Advisory	MRX	14 hr
Feb 12, 8:25 PM EST	Special Weather Statement	MRX	35 min
Feb 22, 2:33 AM EST	Wind Advisory	MRX	21 hr
Feb 23, 3:55 PM EST	Winter Weather Advisory	MRX	28 hr
Feb 26, 3:00 PM EST	High Wind Watch	MRX	13 hr
Feb 26, 3:00 PM EST	Wind Advisory	MRX	52 hr
Feb 27, 3:56 AM EST	High Wind Warning	MRX	39 hr
Feb 28, 11:53 AM EST	Severe Thunderstorm Warning	MRX	52 min
Feb 28, 12:15 PM EST	Severe Thunderstorm Warning Considerable damage threat	MRX	45 min
Feb 28, 12:33 PM EST	Severe Thunderstorm Warning Considerable damage threat	MRX	42 min
Feb 28, 12:35 PM EST	Severe Thunderstorm Warning	MRX	40 min
Feb 29, 2:54 PM EST	Wind Advisory	MRX	33 hr
Mar 3, 1:48 AM EST	Dense Fog Advisory	MRX	7 hr
Mar 7, 2:36 PM EST	Wind Advisory	MRX	43 hr
Mar 8, 8:19 PM EST	High Wind Warning	MRX	14 hr
Mar 9, 3:27 AM EST	Wind Advisory	MRX	41 hr
Mar 21, 1:37 PM EDT	Wind Advisory	MRX	34 hr
Mar 24, 2:51 PM EDT	High Wind Watch	MRX	12 hr
Mar 24, 2:51 PM EDT	Wind Advisory	MRX	44 hr
Mar 25, 2:36 AM EDT	High Wind Warning	MRX	37 hr
Mar 28, 2:56 PM EDT	Frost Advisory	MRX	18 hr
Apr 1, 2:49 PM EDT	Wind Advisory	MRX	35 hr
Apr 2, 5:33 PM EDT	Mesoscale Discussion	SPC	87 min
Apr 2, 6:07 PM EDT	Tornado Watch	SPC	7 hr
Apr 2, 11:36 PM EDT	Special Weather Statement	MRX	24 min
Apr 3, 3:28 PM EDT	Winter Weather Advisory	MRX	36 hr
Apr 6, 12:51 PM EDT	Frost Advisory	MRX	20 hr
Apr 9, 2:36 PM EDT	High Wind Watch	MRX	12 hr
Apr 10, 2:57 AM EDT	High Wind Warning	MRX	32 hr
Apr 11, 4:15 PM EDT	Severe Thunderstorm Warning	MRX	45 min
Apr 11, 4:43 PM EDT	Severe Thunderstorm Warning	MRX	47 min
Apr 11, 5:35 PM EDT	Special Weather Statement	MRX	55 min
Apr 12, 3:41 AM EDT	Wind Advisory	MRX	17 hr
Apr 19, 2:33 PM EDT	Mesoscale Discussion	SPC	117 min
Apr 21, 3:25 AM EDT	Frost Advisory	MRX	30 hr
Apr 22, 2:43 PM EDT	Frost Advisory	MRX	18 hr
Apr 26, 9:58 PM EDT	Wind Advisory	MRX	8 hr
Apr 27, 7:41 PM EDT	Wind Advisory	MRX	8 hr
Apr 28, 2:48 PM EDT	Wind Advisory	MRX	12 hr
May 1, 3:16 AM EDT	Dense Fog Advisory	MRX	7 hr
May 6, 1:41 PM EDT	Mesoscale Discussion	SPC	2 hr
May 6, 5:53 PM EDT	Mesoscale Discussion	SPC	97 min
May 6, 8:18 PM EDT	Special Weather Statement	MRX	27 min
May 6, 8:27 PM EDT	Severe Thunderstorm Warning	MRX	48 min
May 8, 2:28 AM EDT	Flood Watch	MRX	30 hr
May 8, 10:04 AM EDT	Severe Thunderstorm Watch	SPC	6 hr
May 8, 10:56 AM EDT	Mesoscale Discussion	SPC	94 min
May 8, 12:45 PM EDT	Areal Flood Advisory	MRX	2 hr
May 8, 1:33 PM EDT	Special Weather Statement	MRX	42 min
May 8, 5:14 PM EDT	Tornado Watch	SPC	7 hr
May 8, 8:42 PM EDT	Mesoscale Discussion	SPC	2 hr
May 8, 9:51 PM EDT	Severe Thunderstorm Warning	MRX	39 min
May 8, 10:11 PM EDT	Severe Thunderstorm Warning	MRX	49 min
May 8, 10:26 PM EDT	Severe Thunderstorm Warning Considerable damage threat	MRX	49 min
May 8, 10:37 PM EDT	Severe Thunderstorm Warning Considerable damage threat	MRX	53 min
May 8, 10:41 PM EDT	Severe Thunderstorm Warning	MRX	64 min
May 8, 11:08 PM EDT	Areal Flood Advisory	MRX	4 hr
May 9, 5:43 AM EDT	Areal Flood Advisory	MRX	4 hr
May 9, 6:18 AM EDT	Areal Flood Advisory	MRX	4 hr
May 13, 11:47 AM EDT	Wind Advisory	MRX	16 hr
May 14, 10:58 PM EDT	Special Weather Statement	MRX	47 min
May 23, 4:25 PM EDT	Areal Flood Advisory	MRX	3 hr
May 23, 7:41 PM EDT	Mesoscale Discussion	SPC	94 min
May 23, 7:53 PM EDT	Severe Thunderstorm Warning	MRX	52 min
May 23, 11:04 PM EDT	Areal Flood Advisory	MRX	3 hr
May 25, 8:21 AM EDT	Areal Flood Advisory	MRX	2 hr
May 26, 9:59 AM EDT	Tornado Watch	SPC	8 hr
May 26, 1:46 PM EDT	Severe Thunderstorm Watch	SPC	9 hr
May 26, 4:42 PM EDT	Mesoscale Discussion	SPC	63 min
May 26, 5:21 PM EDT	Special Weather Statement	MRX	39 min
May 26, 5:26 PM EDT	Severe Thunderstorm Warning	MRX	64 min
May 26, 6:09 PM EDT	Severe Thunderstorm Warning	MRX	51 min
May 26, 10:43 PM EDT	Tornado Watch	SPC	7 hr
May 27, 3:14 AM EDT	Special Weather Statement	MRX	46 min
May 27, 3:43 AM EDT	Special Weather Statement	MRX	47 min
May 27, 3:47 AM EDT	Mesoscale Discussion	SPC	118 min
Jun 4, 10:53 PM EDT	Areal Flood Advisory	MRX	3 hr
Jun 9, 4:52 PM EDT	Special Weather Statement	MRX	38 min
Jun 9, 5:30 PM EDT	Special Weather Statement	MRX	45 min
Jun 16, 1:23 PM EDT	Special Weather Statement	MRX	22 min
Jun 17, 1:53 PM EDT	Special Weather Statement	MRX	37 min
Jun 30, 2:16 PM EDT	Mesoscale Discussion	SPC	119 min
Jul 4, 3:57 AM EDT	Heat Advisory	MRX	16 hr
Jul 17, 5:10 PM EDT	Special Weather Statement	MRX	35 min
Jul 22, 1:31 AM EDT	Areal Flood Advisory	MRX	3 hr
Jul 22, 9:17 PM EDT	Flash Flood Warning	MRX	4 hr
Jul 28, 8:34 PM EDT	Areal Flood Advisory	MRX	116 min
Jul 30, 3:36 AM EDT	Flood Watch	MRX	4 days
Jul 30, 2:18 PM EDT	Severe Thunderstorm Watch	SPC	5 hr
Jul 30, 3:09 PM EDT	Severe Thunderstorm Warning	MRX	66 min
Jul 30, 3:15 PM EDT	Special Weather Statement	MRX	45 min
Jul 30, 3:23 PM EDT	Severe Thunderstorm Warning	MRX	67 min
Jul 30, 4:01 PM EDT	Mesoscale Discussion	SPC	119 min
Jul 30, 4:10 PM EDT	Severe Thunderstorm Warning	MRX	19 min
Jul 30, 4:11 PM EDT	Flash Flood Warning	MRX	4 hr
Jul 30, 4:21 PM EDT	Severe Thunderstorm Warning	MRX	54 min
Jul 30, 4:56 PM EDT	Flash Flood Warning	MRX	3 hr
Jul 30, 5:09 PM EDT	Severe Thunderstorm Warning	MRX	51 min
Jul 30, 5:48 PM EDT	Flash Flood Warning	MRX	2 hr
Aug 1, 2:56 AM EDT	Heat Advisory	MRX	17 hr
Aug 1, 9:04 PM EDT	Severe Thunderstorm Warning	MRX	41 min
Aug 1, 9:48 PM EDT	Severe Thunderstorm Warning	MRX	57 min
Aug 1, 10:43 PM EDT	Special Weather Statement	MRX	62 min
Aug 2, 1:43 PM EDT	Mesoscale Discussion	SPC	2 hr
Aug 16, 5:12 PM EDT	Severe Thunderstorm Warning	MRX	48 min
Aug 16, 5:23 PM EDT	Special Weather Statement	MRX	67 min
Aug 16, 5:38 PM EDT	Severe Thunderstorm Warning	MRX	67 min
Aug 16, 6:03 PM EDT	Special Weather Statement	MRX	42 min
Aug 18, 1:40 AM EDT	Special Weather Statement	MRX	50 min
Sep 11, 2:50 PM EDT	Wind Advisory	MRX	44 hr
Sep 13, 3:13 PM EDT	Wind Advisory	MRX	17 hr
Sep 23, 2:13 PM EDT	Mesoscale Discussion	SPC	92 min
Sep 24, 2:55 PM EDT	Flood Watch	MRX	71 hr
Sep 25, 9:23 AM EDT	Severe Thunderstorm Warning	MRX	21 min
Sep 25, 10:07 AM EDT	Flash Flood Warning	MRX	5 hr
Sep 25, 1:25 PM EDT	Flash Flood Warning	MRX	3 hr
Sep 25, 1:38 PM EDT	High Wind Watch	MRX	23 hr
Sep 25, 9:40 PM EDT	High Wind Warning	MRX	55 hr
Sep 25, 10:03 PM EDT	Flash Flood Warning	MRX	2 hr
Sep 26, 9:11 AM EDT	Areal Flood Warning	MRX	8 hr
Sep 26, 11:32 AM EDT	Areal Flood Warning	MRX	5 hr
Sep 26, 4:59 PM EDT	Areal Flood Warning	MRX	12 hr
Sep 26, 11:52 PM EDT	Flash Flood Warning	MRX	3 hr
Sep 27, 4:47 AM EDT	Areal Flood Warning	MRX	6 hr
Sep 27, 2:29 PM EDT	Wind Advisory	MRX	24 hr
Oct 2, 4:57 AM EDT	Dense Fog Advisory	MRX	4 hr
Oct 2, 10:05 PM EDT	Dense Fog Advisory	MRX	12 hr
Oct 13, 11:27 PM EDT	Severe Thunderstorm Warning	MRX	33 min
Oct 14, 12:02 AM EDT	Special Weather Statement	MRX	28 min
Oct 30, 3:16 PM EDT	Wind Advisory	MRX	19 hr
Nov 3, 1:14 PM EST	Wind Advisory	MRX	21 hr
Nov 4, 2:48 AM EST	Wind Advisory	MRX	30 hr
Nov 6, 10:33 PM EST	Dense Fog Advisory	MRX	6 hr
Nov 9, 10:01 PM EST	Wind Advisory	MRX	14 hr
Nov 13, 10:15 AM EST	High Wind Warning	MRX	24 hr
Nov 20, 3:06 AM EST	Winter Weather Advisory	MRX	3 days
Nov 27, 2:09 AM EST	Wind Advisory	MRX	32 hr
Dec 2, 1:45 AM EST	Winter Weather Advisory	MRX	29 hr
Dec 4, 3:39 AM EST	Wind Advisory	MRX	33 hr
Dec 8, 3:03 PM EST	Wind Advisory	MRX	22 hr
Dec 9, 7:11 PM EST	Dense Fog Advisory	MRX	9 hr
Dec 11, 3:56 AM EST	Winter Weather Advisory	MRX	10 hr
Dec 13, 2:09 PM EST	Wind Advisory	MRX	47 hr
Dec 18, 3:18 AM EST	Dense Fog Advisory	MRX	6 hr
Dec 18, 2:14 PM EST	Special Weather Statement	MRX	46 min
Dec 19, 2:56 PM EST	Winter Storm Watch	MRX	6 hr
Dec 19, 9:03 PM EST	Winter Weather Advisory	MRX	37 hr
Dec 26, 1:45 PM EST	Wind Advisory	MRX	40 hr
Dec 27, 11:59 AM EST	High Wind Warning	MRX	17 hr
Dec 28, 5:30 AM EST	High Wind Warning	MRX	38 hr
Dec 29, 2:24 AM EST	Wind Advisory	MRX	17 hr
Dec 29, 6:25 AM EST	Areal Flood Advisory	MRX	5 hr
Dec 29, 6:31 AM EST	Areal Flood Advisory	MRX	2 hr
Dec 30, 2:58 AM EST	Wind Advisory	MRX	12 hr
Dec 30, 2:34 PM EST	High Wind Warning	MRX	20 hr
Dec 30, 2:37 PM EST	Wind Advisory	MRX	28 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	26
Severe Thunderstorm Watch	3
Tornado Watch	4
Mesoscale Discussion	13
Special Weather Statement	22
Flooding
Areal Flood Warning	6
Flash Flood Warning	9
Flood Watch	6
Areal Flood Advisory	19
Winter
Winter Storm Warning	2
Winter Storm Watch	2
Winter Weather Advisory	9
Heat
Heat Advisory	2
Cold
Wind Chill Warning	1
Wind Chill Watch	1
Frost Advisory	4
Wind Chill Advisory	2
Wind and dust
High Wind Warning	12
High Wind Watch	6
Wind Advisory	34
Fog and smoke
Dense Fog Advisory	9

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.