Alert archive / Mississippi / Copiah County

Weather alerts in Copiah County, Mississippi, 2023

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

Copiah County and its neighbors

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

Alerts: 229
Warnings: 80
Watches: 34
Advisories: 36
Busiest month: June66 alerts
Busiest day: June 18, 202310 alerts

Over time

By month

Warning verification

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

3 of 4 tornado warnings covering Copiah County in 2023 had a tornado report inside them.

Copiah County, 2023

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
Tornado warnings	4	3	25%	0
Severe thunderstorm warnings	44	25	43%	48	52%	29 min
Flash flood warnings	2	1	50%	0

Each office's whole area, 2023

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS Jackson, MS: tornado warnings	67	31	54%	88	80%	19 min
NWS Jackson, MS: severe thunderstorm warnings	595	288	52%	926	76%	26 min
NWS Jackson, MS: flash flood warnings	55	27	51%	86	83%	85 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 1, 1:55 PM CST	Dense Fog Advisory	JAN	20 hr
Jan 3, 8:52 AM CST	Severe Thunderstorm Warning	JAN	54 min
Jan 3, 9:14 AM CST	Tornado Watch	SPC	8 hr
Jan 3, 9:36 AM CST	Severe Thunderstorm Warning	JAN	23 min
Jan 3, 5:01 PM CST	Severe Thunderstorm Watch	SPC	9 hr
Jan 3, 7:38 PM CST	Special Weather Statement	JAN	52 min
Jan 3, 7:46 PM CST	Severe Thunderstorm Warning	JAN	59 min
Jan 3, 9:19 PM CST	Mesoscale Discussion	SPC	86 min
Jan 9, 2:30 AM CST	Dense Fog Advisory	JAN	7 hr
Jan 12, 3:07 AM CST	Mesoscale Discussion	SPC	3 hr
Jan 12, 7:58 AM CST	Severe Thunderstorm Warning	JAN	47 min
Jan 18, 2:34 PM CST	Tornado Watch	SPC	7 hr
Jan 18, 5:47 PM CST	Mesoscale Discussion	SPC	118 min
Jan 18, 8:02 PM CST	Mesoscale Discussion	SPC	58 min
Jan 18, 8:35 PM CST	Severe Thunderstorm Warning	JAN	55 min
Jan 18, 9:25 PM CST	Special Weather Statement	JAN	50 min
Jan 18, 9:59 PM CST	Severe Thunderstorm Warning	JAN	46 min
Jan 18, 10:04 PM CST	Tornado Warning	JAN	41 min
Jan 18, 10:38 PM CST	Severe Thunderstorm Warning	JAN	67 min
Jan 23, 2:39 PM CST	Wind Advisory	JAN	36 hr
Jan 24, 11:27 AM CST	River Flood Warning	JAN	3 days
Jan 24, 6:59 PM CST	Special Weather Statement	JAN	61 min
Jan 28, 10:34 AM CST	River Flood Warning	JAN	27 days
Jan 30, 9:39 PM CST	Dense Fog Advisory	JAN	12 hr
Feb 8, 1:57 PM CST	Special Weather Statement	JAN	33 min
Feb 8, 2:22 PM CST	Mesoscale Discussion	SPC	83 min
Feb 8, 4:34 PM CST	Mesoscale Discussion	SPC	56 min
Feb 8, 4:52 PM CST	Tornado Watch	SPC	6 hr
Feb 8, 5:23 PM CST	Special Weather Statement	JAN	52 min
Feb 8, 7:59 PM CST	Severe Thunderstorm Warning	JAN	61 min
Feb 8, 8:08 PM CST	Mesoscale Discussion	SPC	97 min
Feb 8, 8:53 PM CST	Special Weather Statement	JAN	52 min
Feb 15, 5:41 PM CST	Mesoscale Discussion	SPC	3 hr
Feb 16, 9:59 AM CST	Tornado Watch	SPC	9 hr
Feb 16, 11:37 AM CST	Mesoscale Discussion	SPC	83 min
Feb 16, 4:45 PM CST	Flash Flood Warning	JAN	3 hr
Feb 21, 1:21 PM CST	Wind Advisory	JAN	29 hr
Feb 26, 6:02 AM CST	Dense Fog Advisory	JAN	3 hr
Mar 2, 4:03 AM CST	Wind Advisory	JAN	38 hr
Mar 6, 4:20 AM CST	Dense Fog Advisory	JAN	6 hr
Mar 12, 7:13 AM CDT	Mesoscale Discussion	SPC	2 hr
Mar 12, 7:30 AM CDT	Severe Thunderstorm Warning	JAN	60 min
Mar 12, 4:23 PM CDT	Severe Thunderstorm Warning	JAN	52 min
Mar 18, 3:14 AM CDT	Freeze Watch	JAN	11 hr
Mar 18, 3:14 AM CDT	Freeze Warning	JAN	31 hr
Mar 18, 2:09 PM CDT	Freeze Warning	JAN	44 hr
Mar 24, 4:56 PM CDT	Mesoscale Discussion	SPC	2 hr
Mar 24, 5:20 PM CDT	Tornado Watch	SPC	8 hr
Mar 24, 5:24 PM CDT	Severe Thunderstorm Warning	JAN	51 min
Mar 24, 6:06 PM CDT	Mesoscale Discussion	SPC	84 min
Mar 26, 1:55 AM CDT	Mesoscale Discussion	SPC	2 hr
Mar 26, 3:06 PM CDT	Mesoscale Discussion	SPC	114 min
Mar 26, 3:57 PM CDT	Tornado Watch	SPC	7 hr
Mar 26, 5:00 PM CDT	Severe Thunderstorm Warning	JAN	45 min
Mar 26, 5:14 PM CDT	Mesoscale Discussion	SPC	61 min
Mar 26, 5:41 PM CDT	Severe Thunderstorm Warning	JAN	46 min
Mar 26, 7:16 PM CDT	Mesoscale Discussion	SPC	119 min
Mar 31, 8:24 PM CDT	Tornado Watch	SPC	8 hr
Apr 1, 2:03 AM CDT	Mesoscale Discussion	SPC	87 min
Apr 2, 10:19 PM CDT	Mesoscale Discussion	SPC	5 hr
Apr 3, 3:16 AM CDT	Severe Thunderstorm Warning	JAN	59 min
Apr 3, 4:15 AM CDT	Severe Thunderstorm Warning	JAN	60 min
Apr 5, 2:17 PM CDT	Mesoscale Discussion	SPC	88 min
Apr 5, 2:39 PM CDT	Severe Thunderstorm Watch	SPC	4 hr
Apr 8, 9:18 AM CDT	River Flood Warning	JAN	13 days
Apr 15, 11:01 AM CDT	Special Weather Statement	JAN	44 min
Apr 15, 11:12 AM CDT	Mesoscale Discussion	SPC	63 min
Apr 20, 4:48 AM CDT	Dense Fog Advisory	JAN	4 hr
Apr 26, 7:05 PM CDT	Special Weather Statement	JAN	40 min
May 5, 1:32 PM CDT	Special Weather Statement	JAN	43 min
May 5, 1:41 PM CDT	Severe Thunderstorm Warning	JAN	33 min
May 7, 5:08 PM CDT	Mesoscale Discussion	SPC	97 min
May 7, 6:26 PM CDT	Severe Thunderstorm Warning	JAN	49 min
May 9, 1:58 PM CDT	Mesoscale Discussion	SPC	92 min
May 9, 5:10 PM CDT	Special Weather Statement	JAN	35 min
May 10, 4:22 PM CDT	Special Weather Statement	JAN	23 min
May 11, 12:22 PM CDT	Mesoscale Discussion	SPC	53 min
May 11, 12:45 PM CDT	Tornado Watch	SPC	7 hr
May 11, 1:25 PM CDT	Severe Thunderstorm Warning Considerable damage threat	JAN	95 min
May 11, 3:02 PM CDT	Mesoscale Discussion	SPC	88 min
May 12, 3:56 PM CDT	Special Weather Statement	JAN	49 min
May 12, 4:14 PM CDT	Severe Thunderstorm Warning	JAN	26 min
May 12, 4:30 PM CDT	Severe Thunderstorm Warning	JAN	45 min
May 12, 5:06 PM CDT	Severe Thunderstorm Warning	JAN	39 min
May 12, 5:39 PM CDT	Special Weather Statement	JAN	51 min
May 15, 3:47 PM CDT	Severe Thunderstorm Warning	JAN	43 min
May 16, 8:38 PM CDT	Special Weather Statement	JAN	52 min
Jun 3, 5:09 PM CDT	Special Weather Statement	JAN	36 min
Jun 5, 5:55 PM CDT	Severe Thunderstorm Warning	JAN	35 min
Jun 6, 4:46 PM CDT	Special Weather Statement	JAN	29 min
Jun 10, 2:36 PM CDT	Special Weather Statement	JAN	39 min
Jun 10, 3:12 PM CDT	Special Weather Statement	JAN	33 min
Jun 10, 4:17 PM CDT	Severe Thunderstorm Watch	SPC	5 hr
Jun 10, 5:54 PM CDT	Special Weather Statement	JAN	51 min
Jun 10, 6:19 PM CDT	Mesoscale Discussion	SPC	86 min
Jun 12, 2:00 PM CDT	Severe Thunderstorm Watch	SPC	6 hr
Jun 12, 3:43 PM CDT	Mesoscale Discussion	SPC	62 min
Jun 13, 11:01 AM CDT	Mesoscale Discussion	SPC	2 hr
Jun 14, 2:50 AM CDT	Flood Watch	JAN	32 hr
Jun 14, 4:38 AM CDT	Severe Thunderstorm Watch	SPC	3 hr
Jun 14, 1:33 PM CDT	Mesoscale Discussion	SPC	87 min
Jun 14, 1:46 PM CDT	Severe Thunderstorm Watch PDS	SPC	6 hr
Jun 14, 3:25 PM CDT	Mesoscale Discussion	SPC	95 min
Jun 14, 4:36 PM CDT	Severe Thunderstorm Warning	JAN	54 min
Jun 14, 5:40 PM CDT	Severe Thunderstorm Warning	JAN	68 min
Jun 14, 7:10 PM CDT	Mesoscale Discussion	SPC	65 min
Jun 14, 7:33 PM CDT	Severe Thunderstorm Watch	SPC	8 hr
Jun 15, 6:46 AM CDT	Mesoscale Discussion	SPC	119 min
Jun 15, 9:26 AM CDT	Mesoscale Discussion	SPC	94 min
Jun 15, 9:41 AM CDT	Severe Thunderstorm Watch	SPC	7 hr
Jun 15, 9:44 AM CDT	Severe Thunderstorm Warning	JAN	76 min
Jun 15, 10:27 AM CDT	Severe Thunderstorm Warning Destructive damage threat	JAN	63 min
Jun 15, 11:29 AM CDT	Severe Thunderstorm Warning Considerable damage threat	JAN	61 min
Jun 16, 1:02 AM CDT	Mesoscale Discussion	SPC	3 hr
Jun 16, 1:52 AM CDT	Severe Thunderstorm Watch	SPC	8 hr
Jun 16, 4:04 AM CDT	Severe Thunderstorm Warning Destructive damage threat	JAN	71 min
Jun 16, 4:49 AM CDT	Severe Thunderstorm Warning Considerable damage threat	JAN	71 min
Jun 16, 8:36 AM CDT	Heat Advisory	JAN	11 hr
Jun 16, 4:35 PM CDT	Mesoscale Discussion	SPC	85 min
Jun 17, 10:03 AM CDT	Mesoscale Discussion	SPC	117 min
Jun 17, 10:23 AM CDT	Heat Advisory	JAN	10 hr
Jun 17, 12:55 PM CDT	Severe Thunderstorm Watch	SPC	7 hr
Jun 18, 2:27 AM CDT	Severe Thunderstorm Watch	SPC	10 hr
Jun 18, 4:56 AM CDT	Severe Thunderstorm Warning	JAN	64 min
Jun 18, 5:21 AM CDT	Mesoscale Discussion	SPC	114 min
Jun 18, 5:38 AM CDT	Severe Thunderstorm Warning	JAN	67 min
Jun 18, 5:49 AM CDT	Severe Thunderstorm Warning Considerable damage threat	JAN	71 min
Jun 18, 6:41 AM CDT	Severe Thunderstorm Warning Destructive damage threat	JAN	64 min
Jun 18, 8:09 AM CDT	Severe Thunderstorm Warning	JAN	27 min
Jun 18, 1:45 PM CDT	Flood Watch	JAN	17 hr
Jun 18, 3:45 PM CDT	Mesoscale Discussion	SPC	90 min
Jun 18, 6:52 PM CDT	Tornado Watch	SPC	6 hr
Jun 19, 12:57 AM CDT	Tornado Watch	SPC	7 hr
Jun 19, 4:39 AM CDT	Severe Thunderstorm Warning	JAN	51 min
Jun 19, 5:44 AM CDT	Severe Thunderstorm Warning	JAN	46 min
Jun 19, 10:01 AM CDT	River Flood Warning	JAN	9 days
Jun 24, 3:34 AM CDT	Heat Advisory	JAN	40 hr
Jun 25, 2:20 PM CDT	Heat Advisory	JAN	30 hr
Jun 25, 9:29 PM CDT	Mesoscale Discussion	SPC	91 min
Jun 25, 10:07 PM CDT	Severe Thunderstorm Watch	SPC	7 hr
Jun 25, 10:55 PM CDT	Severe Thunderstorm Warning Destructive damage threat	JAN	95 min
Jun 26, 4:21 AM CDT	Mesoscale Discussion	SPC	84 min
Jun 26, 2:29 PM CDT	Heat Advisory	JAN	30 hr
Jun 27, 4:28 AM CDT	Excessive Heat Watch	JAN	24 hr
Jun 27, 2:06 PM CDT	Severe Thunderstorm Warning	JAN	39 min
Jun 27, 2:21 PM CDT	Mesoscale Discussion	SPC	84 min
Jun 27, 4:27 PM CDT	Mesoscale Discussion	SPC	93 min
Jun 27, 4:39 PM CDT	Severe Thunderstorm Watch	SPC	4 hr
Jun 27, 7:20 PM CDT	Mesoscale Discussion	SPC	115 min
Jun 28, 4:23 AM CDT	Excessive Heat Warning	JAN	17 hr
Jun 28, 4:23 AM CDT	Excessive Heat Warning	JAN	41 hr
Jun 29, 3:51 AM CDT	Excessive Heat Warning	JAN	41 hr
Jun 29, 3:05 PM CDT	Excessive Heat Warning	JAN	54 hr
Jul 1, 3:09 AM CDT	Heat Advisory	JAN	42 hr
Jul 4, 1:22 PM CDT	Mesoscale Discussion	SPC	113 min
Jul 11, 3:05 PM CDT	Special Weather Statement	JAN	40 min
Jul 12, 2:53 PM CDT	Flood Watch	JAN	24 hr
Jul 13, 3:21 PM CDT	Heat Advisory	JAN	29 hr
Jul 14, 2:19 PM CDT	Heat Advisory	JAN	30 hr
Jul 15, 2:43 PM CDT	Heat Advisory	JAN	29 hr
Jul 15, 9:41 PM CDT	Special Weather Statement	JAN	64 min
Jul 16, 3:05 PM CDT	Heat Advisory	JAN	29 hr
Jul 16, 3:33 PM CDT	Mesoscale Discussion	SPC	87 min
Jul 16, 3:48 PM CDT	Severe Thunderstorm Watch	SPC	5 hr
Jul 16, 6:25 PM CDT	Severe Thunderstorm Warning	JAN	80 min
Jul 16, 6:42 PM CDT	Mesoscale Discussion	SPC	93 min
Jul 17, 1:57 PM CDT	Heat Advisory	JAN	30 hr
Jul 18, 2:44 PM CDT	Excessive Heat Warning	JAN	30 hr
Jul 18, 2:44 PM CDT	Heat Advisory	JAN	30 hr
Jul 19, 2:28 PM CDT	Heat Advisory	JAN	53 hr
Jul 20, 4:26 AM CDT	Excessive Heat Warning	JAN	39 hr
Jul 28, 1:33 PM CDT	Heat Advisory	JAN	30 hr
Jul 28, 3:14 PM CDT	Special Weather Statement	JAN	31 min
Jul 28, 4:44 PM CDT	Special Weather Statement	JAN	31 min
Jul 29, 2:56 PM CDT	Heat Advisory	JAN	29 hr
Jul 30, 3:30 PM CDT	Excessive Heat Warning	JAN	29 hr
Jul 30, 3:30 PM CDT	Heat Advisory	JAN	29 hr
Jul 31, 2:30 PM CDT	Excessive Heat Warning	JAN	7 days
Aug 8, 3:25 AM CDT	Heat Advisory	JAN	8 hr
Aug 8, 2:37 PM CDT	Heat Advisory	JAN	45 hr
Aug 9, 3:54 AM CDT	Excessive Heat Warning	JAN	6 days
Aug 17, 2:59 AM CDT	Heat Advisory	JAN	40 hr
Aug 18, 2:56 PM CDT	Heat Advisory	JAN	5 days
Aug 20, 2:46 PM CDT	Red Flag Warning	JAN	29 hr
Aug 20, 3:51 PM CDT	Heat Advisory	JAN	66 hr
Aug 21, 3:01 PM CDT	Red Flag Warning	JAN	29 hr
Aug 22, 3:26 AM CDT	Excessive Heat Warning	JAN	5 days
Aug 22, 3:11 PM CDT	Red Flag Warning	JAN	29 hr
Aug 23, 2:26 PM CDT	Red Flag Warning	JAN	30 hr
Aug 24, 1:50 PM CDT	Red Flag Warning	JAN	30 hr
Aug 24, 4:46 PM CDT	Special Weather Statement	JAN	29 min
Aug 25, 2:16 PM CDT	Red Flag Warning	JAN	30 hr
Aug 25, 6:09 PM CDT	Special Weather Statement	JAN	36 min
Aug 25, 6:20 PM CDT	Severe Thunderstorm Warning	JAN	55 min
Aug 26, 2:11 PM CDT	Excessive Heat Warning	JAN	31 hr
Aug 26, 2:19 PM CDT	Red Flag Warning	JAN	30 hr
Aug 27, 2:16 PM CDT	Heat Advisory	JAN	21 hr
Aug 27, 2:17 PM CDT	Fire Weather Watch	JAN	13 hr
Aug 29, 2:40 PM CDT	Fire Weather Watch	JAN	23 hr
Aug 29, 2:40 PM CDT	Red Flag Warning	JAN	29 hr
Sep 6, 2:34 PM CDT	Special Weather Statement	JAN	41 min
Sep 7, 3:13 AM CDT	Heat Advisory	JAN	17 hr
Sep 7, 3:31 PM CDT	Mesoscale Discussion	SPC	119 min
Oct 5, 3:17 PM CDT	Red Flag Warning	JAN	52 hr
Oct 19, 7:22 AM CDT	Dense Fog Advisory	JAN	3 hr
Oct 27, 2:35 PM CDT	Dense Fog Advisory	JAN	19 hr
Oct 28, 2:43 PM CDT	Dense Fog Advisory	JAN	19 hr
Oct 30, 2:08 PM CDT	Red Flag Warning	JAN	29 hr
Oct 30, 2:53 PM CDT	Freeze Watch	JAN	42 hr
Oct 30, 2:53 PM CDT	Freeze Warning	JAN	42 hr
Oct 31, 1:08 PM CDT	Red Flag Warning	JAN	30 hr
Nov 1, 3:25 AM CDT	Freeze Warning	JAN	30 hr
Nov 7, 12:58 PM CST	Dense Fog Advisory	JAN	20 hr
Nov 20, 3:14 PM CST	Mesoscale Discussion	SPC	2 hr
Nov 20, 3:52 PM CST	Tornado Watch	SPC	9 hr
Nov 20, 5:30 PM CST	Tornado Warning	JAN	60 min
Nov 20, 6:03 PM CST	Mesoscale Discussion	SPC	87 min
Nov 20, 6:23 PM CST	Tornado Warning	JAN	67 min
Nov 20, 6:26 PM CST	Severe Thunderstorm Warning	JAN	64 min
Nov 20, 6:34 PM CST	Tornado Warning Tornado observed	JAN	56 min
Nov 20, 8:00 PM CST	Flash Flood Warning	JAN	2 hr
Dec 9, 3:00 PM CST	Mesoscale Discussion	SPC	2 hr
Dec 9, 3:38 PM CST	Special Weather Statement	JAN	37 min
Dec 9, 3:44 PM CST	Severe Thunderstorm Warning	JAN	61 min
Dec 9, 3:56 PM CST	Tornado Watch	SPC	8 hr
Dec 9, 5:12 PM CST	Severe Thunderstorm Warning	JAN	27 min
Dec 9, 5:56 PM CST	Mesoscale Discussion	SPC	94 min
Dec 9, 8:29 PM CST	Mesoscale Discussion	SPC	2 hr
Dec 9, 8:39 PM CST	Special Weather Statement	JAN	66 min

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	44
Tornado Warning	4
Severe Thunderstorm Watch	14
Tornado Watch	12
Mesoscale Discussion	51
Special Weather Statement	28
Flooding
Flash Flood Warning	2
River Flood Warning	4
Flood Watch	3
Heat
Excessive Heat Warning	11
Excessive Heat Watch	1
Heat Advisory	23
Cold
Freeze Warning	4
Freeze Watch	2
Wind and dust
Wind Advisory	3
Fire
Red Flag Warning	11
Fire Weather Watch	2
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 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.