Alert archive / Tennessee / Marion County

Weather alerts in Marion County, Tennessee, 2023

151 weather alerts in 2023, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Marion County and its neighbors

Each county as a circle sized by its count in 2023. Tap one for its archive.

Alerts: 151
Warnings: 46
Watches: 22
Advisories: 23
Busiest month: March31 alerts
Busiest day: March 2, 20238 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 2 tornado warnings covering Marion County in 2023 had a tornado report inside them.

Marion County, 2023

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
Tornado warnings	2	0	100%	0
Severe thunderstorm warnings	30	28	7%	23	91%	28 min
Flash flood warnings	2	1	50%	1	100%	71 min

Each office's whole area, 2023

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS Morristown, TN: tornado warnings	29	4	86%	10	60%	11 min
NWS Morristown, TN: severe thunderstorm warnings	282	246	13%	385	89%	22 min
NWS Morristown, TN: flash flood warnings	45	25	44%	48	79%	51 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, Central Time. Each opens its own page with the text, the map, the radar and the sounding.

Issued	Product	Office	Lasted
Jan 3, 12:25 PM CST	Special Weather Statement	MRX	50 min
Jan 3, 1:17 PM CST	Severe Thunderstorm Warning	MRX	43 min
Jan 12, 9:13 AM CST	Mesoscale Discussion	SPC	62 min
Jan 12, 9:35 AM CST	Special Weather Statement	MRX	40 min
Jan 12, 9:52 AM CST	Severe Thunderstorm Warning	MRX	38 min
Jan 12, 10:03 AM CST	Tornado Watch	SPC	6 hr
Jan 12, 3:06 PM CST	Special Weather Statement	MRX	39 min
Jan 17, 5:48 PM CST	Dense Fog Advisory	MRX	16 hr
Jan 18, 3:10 AM CST	Wind Advisory	MRX	39 hr
Jan 23, 2:38 PM CST	Wind Advisory	MRX	51 hr
Jan 30, 9:24 PM CST	Dense Fog Advisory	MRX	12 hr
Feb 8, 2:32 AM CST	Wind Advisory	MRX	39 hr
Feb 16, 9:01 AM CST	River Flood Warning	MRX	70 hr
Feb 16, 5:57 PM CST	Mesoscale Discussion	SPC	93 min
Feb 16, 11:02 PM CST	Areal Flood Warning	MRX	3 hr
Feb 17, 2:09 AM CST	Areal Flood Advisory	MRX	3 hr
Feb 21, 1:36 PM CST	Wind Advisory	MRX	40 hr
Feb 26, 2:26 AM CST	Wind Advisory	MRX	52 hr
Mar 1, 10:09 PM CST	Mesoscale Discussion	SPC	96 min
Mar 1, 11:20 PM CST	Special Weather Statement	MRX	55 min
Mar 1, 11:22 PM CST	Tornado Watch	SPC	3 hr
Mar 2, 12:04 AM CST	Severe Thunderstorm Warning	MRX	41 min
Mar 2, 12:11 AM CST	Tornado Warning	MRX	28 min
Mar 2, 12:19 AM CST	Flash Flood Warning	MRX	3 hr
Mar 2, 2:35 AM CST	High Wind Watch	MRX	12 hr
Mar 2, 2:34 PM CST	High Wind Warning	MRX	35 hr
Mar 3, 10:15 AM CST	Mesoscale Discussion	SPC	3 hr
Mar 3, 10:34 AM CST	Tornado Watch	SPC	5 hr
Mar 3, 12:06 PM CST	Severe Thunderstorm Warning Considerable damage threat	MRX	54 min
Mar 3, 12:22 PM CST	Tornado Warning	MRX	10 min
Mar 3, 12:39 PM CST	Severe Thunderstorm Warning Considerable damage threat	MRX	66 min
Mar 11, 8:11 PM CST	Special Weather Statement	MRX	34 min
Mar 12, 2:20 PM CDT	Freeze Watch	MRX	12 hr
Mar 13, 2:09 AM CDT	Freeze Warning	MRX	34 hr
Mar 14, 2:29 AM CDT	Freeze Warning	MRX	32 hr
Mar 17, 2:26 AM CDT	Freeze Watch	MRX	7 hr
Mar 17, 9:10 AM CDT	Freeze Warning	MRX	23 hr
Mar 18, 1:59 AM CDT	Freeze Warning	MRX	34 hr
Mar 18, 2:33 PM CDT	Freeze Warning	MRX	43 hr
Mar 19, 2:30 PM CDT	Freeze Watch	MRX	12 hr
Mar 20, 2:09 AM CDT	Freeze Warning	MRX	30 hr
Mar 24, 2:11 PM CDT	Wind Advisory	MRX	15 hr
Mar 24, 10:55 PM CDT	Mesoscale Discussion	SPC	3 hr
Mar 25, 12:03 AM CDT	Severe Thunderstorm Watch	SPC	5 hr
Mar 25, 12:50 AM CDT	Severe Thunderstorm Warning	MRX	55 min
Mar 25, 1:01 AM CDT	Severe Thunderstorm Warning	MRX	44 min
Mar 25, 1:32 AM CDT	Severe Thunderstorm Warning	MRX	31 min
Mar 28, 1:49 PM CDT	Frost Advisory	MRX	18 hr
Mar 31, 2:05 AM CDT	Wind Advisory	MRX	41 hr
Apr 1, 1:49 AM CDT	Tornado Watch	SPC	4 hr
Apr 1, 3:46 AM CDT	Mesoscale Discussion	SPC	89 min
Apr 1, 4:33 AM CDT	Severe Thunderstorm Warning	MRX	42 min
Apr 15, 4:26 AM CDT	Dense Fog Advisory	MRX	5 hr
Apr 19, 2:39 PM CDT	Fire Weather Watch	MRX	13 hr
Apr 20, 3:37 AM CDT	Red Flag Warning	MRX	15 hr
Apr 21, 8:35 PM CDT	Special Weather Statement	MRX	40 min
Apr 21, 8:58 PM CDT	Special Weather Statement	MRX	47 min
Apr 23, 2:00 AM CDT	Frost Advisory	MRX	30 hr
May 7, 4:31 PM CDT	Mesoscale Discussion	SPC	119 min
May 7, 8:14 PM CDT	Special Weather Statement	MRX	46 min
May 7, 8:19 PM CDT	Severe Thunderstorm Warning	MRX	41 min
May 7, 8:58 PM CDT	Special Weather Statement	MRX	62 min
May 15, 1:27 PM CDT	Mesoscale Discussion	SPC	2 hr
May 15, 3:29 PM CDT	Special Weather Statement	MRX	46 min
Jun 4, 2:40 PM CDT	Special Weather Statement	MRX	50 min
Jun 4, 3:45 PM CDT	Special Weather Statement	MRX	45 min
Jun 5, 3:26 PM CDT	Severe Thunderstorm Warning	MRX	49 min
Jun 5, 11:09 PM CDT	Special Weather Statement	MRX	51 min
Jun 11, 6:22 PM CDT	Mesoscale Discussion	SPC	23 min
Jun 11, 6:46 PM CDT	Severe Thunderstorm Watch	SPC	7 hr
Jun 15, 1:40 PM CDT	Mesoscale Discussion	SPC	3 hr
Jun 25, 12:33 PM CDT	Mesoscale Discussion	SPC	87 min
Jun 25, 1:12 PM CDT	Severe Thunderstorm Watch	SPC	5 hr
Jun 25, 1:58 PM CDT	Special Weather Statement	HUN	47 min
Jun 25, 2:16 PM CDT	Severe Thunderstorm Warning	MRX	44 min
Jun 25, 2:44 PM CDT	Severe Thunderstorm Warning	MRX	46 min
Jun 25, 2:54 PM CDT	Mesoscale Discussion	SPC	66 min
Jun 25, 3:09 PM CDT	Severe Thunderstorm Warning	MRX	51 min
Jun 25, 3:29 PM CDT	Areal Flood Advisory	MRX	3 hr
Jun 30, 10:08 AM CDT	Mesoscale Discussion	SPC	97 min
Jun 30, 8:56 PM CDT	Mesoscale Discussion	SPC	94 min
Jun 30, 9:10 PM CDT	Special Weather Statement	MRX	35 min
Jun 30, 10:04 PM CDT	Special Weather Statement	MRX	26 min
Jul 1, 11:46 AM CDT	Mesoscale Discussion	SPC	89 min
Jul 1, 12:22 PM CDT	Severe Thunderstorm Watch	SPC	8 hr
Jul 1, 2:40 PM CDT	Special Weather Statement	MRX	50 min
Jul 1, 2:57 PM CDT	Mesoscale Discussion	SPC	93 min
Jul 1, 3:31 PM CDT	Severe Thunderstorm Warning	MRX	44 min
Jul 2, 10:16 AM CDT	Mesoscale Discussion	SPC	89 min
Jul 2, 12:14 PM CDT	Severe Thunderstorm Watch	SPC	8 hr
Jul 2, 2:03 PM CDT	Severe Thunderstorm Warning	MRX	57 min
Jul 2, 2:40 PM CDT	Severe Thunderstorm Warning	MRX	50 min
Jul 18, 3:40 PM CDT	Severe Thunderstorm Watch	SPC	6 hr
Jul 18, 5:46 PM CDT	Mesoscale Discussion	SPC	3 hr
Jul 18, 5:51 PM CDT	Severe Thunderstorm Warning	MRX	54 min
Jul 20, 1:46 PM CDT	Mesoscale Discussion	SPC	89 min
Jul 20, 2:09 PM CDT	Severe Thunderstorm Watch	SPC	7 hr
Jul 20, 2:18 PM CDT	Severe Thunderstorm Warning	MRX	42 min
Jul 20, 2:55 PM CDT	Severe Thunderstorm Warning	MRX	50 min
Jul 20, 3:39 PM CDT	Mesoscale Discussion	SPC	96 min
Jul 21, 2:06 PM CDT	Mesoscale Discussion	SPC	114 min
Jul 21, 2:22 PM CDT	Severe Thunderstorm Watch	SPC	5 hr
Jul 21, 2:57 PM CDT	Special Weather Statement	MRX	48 min
Jul 21, 5:50 PM CDT	Mesoscale Discussion	SPC	85 min
Aug 6, 5:09 AM CDT	Special Weather Statement	MRX	51 min
Aug 6, 4:07 PM CDT	Special Weather Statement	MRX	23 min
Aug 7, 9:33 AM CDT	Mesoscale Discussion	SPC	117 min
Aug 7, 10:17 AM CDT	Tornado Watch	SPC	7 hr
Aug 7, 12:36 PM CDT	Severe Thunderstorm Warning Considerable damage threat	MRX	39 min
Aug 7, 12:36 PM CDT	Mesoscale Discussion	SPC	114 min
Aug 7, 1:00 PM CDT	Severe Thunderstorm Warning Considerable damage threat	MRX	45 min
Aug 9, 3:42 PM CDT	Mesoscale Discussion	SPC	2 hr
Aug 9, 5:00 PM CDT	Special Weather Statement	MRX	30 min
Aug 10, 3:01 AM CDT	Special Weather Statement	MRX	44 min
Aug 10, 3:18 AM CDT	Severe Thunderstorm Warning	MRX	57 min
Aug 12, 9:39 AM CDT	Mesoscale Discussion	SPC	2 hr
Aug 12, 10:50 AM CDT	Severe Thunderstorm Watch	SPC	7 hr
Aug 12, 12:14 PM CDT	Special Weather Statement	MRX	46 min
Aug 12, 12:33 PM CDT	Severe Thunderstorm Warning	MRX	42 min
Aug 12, 12:57 PM CDT	Mesoscale Discussion	SPC	2 hr
Aug 12, 1:26 PM CDT	Severe Thunderstorm Warning Considerable damage threat	MRX	49 min
Aug 12, 1:35 PM CDT	Severe Thunderstorm Warning Considerable damage threat	MRX	40 min
Aug 12, 2:08 PM CDT	Severe Thunderstorm Warning	MRX	41 min
Aug 13, 2:17 PM CDT	Heat Advisory	MRX	29 hr
Aug 13, 4:49 PM CDT	Mesoscale Discussion	SPC	56 min
Aug 13, 5:25 PM CDT	Special Weather Statement	MRX	50 min
Aug 14, 7:33 PM CDT	Severe Thunderstorm Watch	SPC	6 hr
Aug 14, 11:01 PM CDT	Mesoscale Discussion	SPC	119 min
Aug 15, 12:35 AM CDT	Severe Thunderstorm Warning	MRX	40 min
Aug 15, 12:50 AM CDT	Severe Thunderstorm Warning	MRX	25 min
Aug 24, 10:18 AM CDT	Heat Advisory	MRX	8 hr
Aug 25, 2:31 AM CDT	Heat Advisory	MRX	16 hr
Aug 26, 2:32 AM CDT	Heat Advisory	MRX	16 hr
Aug 28, 5:14 PM CDT	Areal Flood Advisory	MRX	4 hr
Sep 9, 3:01 PM CDT	Special Weather Statement	MRX	44 min
Sep 27, 4:29 PM CDT	Special Weather Statement	MRX	46 min
Sep 27, 5:16 PM CDT	Special Weather Statement	MRX	29 min
Oct 30, 2:42 AM CDT	Freeze Watch	MRX	24 hr
Oct 31, 2:37 AM CDT	Freeze Warning	MRX	30 hr
Nov 1, 3:09 AM CDT	Freeze Warning	MRX	29 hr
Nov 20, 2:54 AM CST	Wind Advisory	MRX	36 hr
Dec 2, 2:22 AM CST	Dense Fog Advisory	MRX	8 hr
Dec 9, 2:45 PM CST	Mesoscale Discussion	SPC	90 min
Dec 9, 6:39 PM CST	Mesoscale Discussion	SPC	96 min
Dec 9, 7:48 PM CST	Tornado Watch	SPC	7 hr
Dec 9, 9:20 PM CST	Areal Flood Advisory	MRX	16 min
Dec 9, 9:27 PM CST	Special Weather Statement	MRX	48 min
Dec 9, 9:31 PM CST	Mesoscale Discussion	SPC	119 min
Dec 9, 9:35 PM CST	Flash Flood Warning	MRX	4 hr
Dec 9, 10:37 PM CST	Severe Thunderstorm Warning	MRX	13 min
Dec 9, 11:03 PM CST	Areal Flood Advisory	MRX	3 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	30
Tornado Warning	2
Severe Thunderstorm Watch	10
Tornado Watch	6
Mesoscale Discussion	32
Special Weather Statement	28
Flooding
Areal Flood Warning	1
Flash Flood Warning	2
River Flood Warning	1
Areal Flood Advisory	5
Heat
Heat Advisory	4
Cold
Freeze Warning	8
Freeze Watch	4
Frost Advisory	2
Wind and dust
High Wind Warning	1
High Wind Watch	1
Wind Advisory	8
Fire
Red Flag Warning	1
Fire Weather Watch	1
Fog and smoke
Dense Fog Advisory	4

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.