Alert archive / Mississippi / Holmes County

Weather alerts in Holmes County, Mississippi, 2021

135 weather alerts in 2021, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Holmes County and its neighbors

Each county as a circle sized by its count in 2021. Tap one for its archive.

Alerts: 135
Warnings: 42
Watches: 17
Advisories: 29
Busiest month: June23 alerts
Busiest day: May 2, 20216 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 Holmes County in 2021 had a tornado report inside them; 3 of 5 tornado reports fell inside a warning, on average 35 minutes after it went out.

Holmes County, 2021

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
Tornado warnings	4	3	25%	5	60%	35 min
Severe thunderstorm warnings	11	8	27%	5	100%	29 min
Flash flood warnings	5	4	20%	4	100%	134 min

Each office's whole area, 2021

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS Jackson, MS: tornado warnings	62	22	65%	76	61%	21 min
NWS Jackson, MS: severe thunderstorm warnings	296	169	43%	530	86%	28 min
NWS Jackson, MS: flash flood warnings	110	66	40%	199	83%	83 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, 1:04 AM CST	Mesoscale Discussion	SPC	116 min
Jan 10, 3:52 AM CST	Winter Storm Warning	JAN	32 hr
Jan 15, 4:01 AM CST	Wind Advisory	JAN	14 hr
Jan 25, 4:49 PM CST	Mesoscale Discussion	SPC	86 min
Feb 11, 11:15 AM CST	River Flood Warning	JAN	32 hr
Feb 11, 3:43 PM CST	Winter Weather Advisory	JAN	20 hr
Feb 12, 4:09 PM CST	Winter Storm Watch	JAN	23 hr
Feb 12, 7:22 PM CST	River Flood Advisory	JAN	17 hr
Feb 12, 9:06 PM CST	Winter Weather Advisory	JAN	13 hr
Feb 13, 3:13 PM CST	Winter Storm Warning	JAN	48 hr
Feb 14, 9:09 PM CST	Hard Freeze Warning	JAN	63 hr
Feb 14, 9:41 PM CST	Wind Chill Advisory	JAN	35 hr
Feb 16, 4:25 AM CST	Winter Storm Watch	JAN	10 hr
Feb 16, 2:50 PM CST	Winter Storm Warning	JAN	39 hr
Feb 17, 10:53 AM CST	Mesoscale Discussion	SPC	6 hr
Feb 18, 6:25 AM CST	Winter Weather Advisory	JAN	14 hr
Feb 18, 9:24 AM CST	Hard Freeze Warning	JAN	27 hr
Feb 19, 3:45 AM CST	Hard Freeze Warning	JAN	29 hr
Feb 25, 9:08 AM CST	River Flood Warning	JAN	10 days
Feb 27, 4:04 AM CST	Flash Flood Watch	JAN	56 hr
Mar 7, 8:36 PM CST	River Flood Advisory	JAN	13 hr
Mar 16, 3:48 PM CDT	Mesoscale Discussion	SPC	117 min
Mar 17, 10:56 AM CDT	Mesoscale Discussion	SPC	2 hr
Mar 17, 12:15 PM CDT	Mesoscale Discussion	SPC	90 min
Mar 17, 12:57 PM CDT	Tornado Watch PDS	SPC	6 hr
Mar 17, 2:56 PM CDT	Mesoscale Discussion	SPC	94 min
Mar 17, 5:55 PM CDT	Severe Thunderstorm Warning	JAN	65 min
Mar 22, 2:25 PM CDT	Wind Advisory	JAN	23 hr
Mar 23, 9:48 AM CDT	River Flood Warning	JAN	12 days
Mar 24, 12:10 PM CDT	Wind Advisory	JAN	26 hr
Mar 25, 10:58 AM CDT	Mesoscale Discussion	SPC	3 hr
Mar 25, 11:26 AM CDT	Tornado Watch PDS	SPC	9 hr
Mar 27, 3:56 PM CDT	Mesoscale Discussion	SPC	94 min
Mar 27, 8:42 PM CDT	Mesoscale Discussion	SPC	93 min
Mar 27, 9:01 PM CDT	Tornado Watch	SPC	7 hr
Mar 28, 1:20 AM CDT	Special Weather Statement	JAN	25 min
Mar 30, 5:46 PM CDT	Mesoscale Discussion	SPC	119 min
Mar 31, 2:57 AM CDT	Wind Advisory	JAN	17 hr
Mar 31, 2:26 PM CDT	Freeze Watch	JAN	20 hr
Apr 1, 10:41 AM CDT	Freeze Warning	JAN	22 hr
Apr 2, 9:51 AM CDT	Freeze Warning	JAN	22 hr
Apr 7, 10:15 AM CDT	River Flood Warning	JAN	9 days
Apr 7, 5:12 PM CDT	Mesoscale Discussion	SPC	2 hr
Apr 7, 8:52 PM CDT	Mesoscale Discussion	SPC	2 hr
Apr 7, 9:24 PM CDT	Severe Thunderstorm Warning	JAN	40 min
Apr 9, 3:42 PM CDT	Severe Thunderstorm Watch	SPC	7 hr
Apr 9, 6:14 PM CDT	Mesoscale Discussion	SPC	3 hr
Apr 16, 8:21 PM CDT	River Flood Advisory	JAN	14 hr
May 2, 3:33 PM CDT	Mesoscale Discussion	SPC	117 min
May 2, 4:46 PM CDT	Tornado Watch	SPC	5 hr
May 2, 5:56 PM CDT	Tornado Warning Tornado observed	JAN	64 min
May 2, 6:45 PM CDT	Tornado Warning Tornado observed	JAN	60 min
May 2, 6:50 PM CDT	Tornado Warning	JAN	55 min
May 2, 6:51 PM CDT	Mesoscale Discussion	SPC	54 min
May 4, 9:18 AM CDT	Tornado Watch	SPC	7 hr
May 4, 1:22 PM CDT	Severe Thunderstorm Warning	JAN	71 min
May 4, 2:09 PM CDT	Severe Thunderstorm Warning	JAN	66 min
May 4, 2:12 PM CDT	Severe Thunderstorm Warning	JAN	63 min
May 4, 2:17 PM CDT	Mesoscale Discussion	SPC	88 min
May 4, 2:22 PM CDT	Tornado Warning	JAN	20 min
May 4, 8:18 PM CDT	River Flood Warning	JAN	61 hr
May 9, 7:29 PM CDT	Severe Thunderstorm Watch	SPC	4 hr
May 9, 9:32 PM CDT	Mesoscale Discussion	SPC	118 min
May 9, 10:16 PM CDT	Severe Thunderstorm Warning	JAN	35 min
May 9, 10:24 PM CDT	Flash Flood Warning	JAN	86 min
May 11, 9:25 AM CDT	River Flood Warning	JAN	21 days
Jun 2, 2:34 PM CDT	Mesoscale Discussion	SPC	116 min
Jun 7, 5:23 PM CDT	Mesoscale Discussion	SPC	67 min
Jun 8, 4:21 AM CDT	Flash Flood Watch	JAN	17 hr
Jun 8, 9:27 AM CDT	River Flood Warning	JAN	10 days
Jun 9, 4:03 AM CDT	Flash Flood Watch	JAN	39 hr
Jun 9, 12:06 PM CDT	Mesoscale Discussion	SPC	2 hr
Jun 9, 2:41 PM CDT	Special Weather Statement	JAN	49 min
Jun 9, 3:05 PM CDT	Severe Thunderstorm Warning	JAN	40 min
Jun 9, 3:58 PM CDT	Special Weather Statement	JAN	32 min
Jun 9, 4:48 PM CDT	Special Weather Statement	JAN	27 min
Jun 10, 6:05 AM CDT	Flash Flood Warning	JAN	4 hr
Jun 10, 8:05 AM CDT	Flash Flood Warning	JAN	4 hr
Jun 10, 10:22 AM CDT	Flash Flood Warning Considerable damage threat	JAN	4 hr
Jun 10, 2:13 PM CDT	Areal Flood Warning	JAN	6 hr
Jun 10, 8:11 PM CDT	Areal Flood Warning	JAN	12 hr
Jun 13, 10:45 AM CDT	Mesoscale Discussion	SPC	60 min
Jun 13, 12:22 PM CDT	Severe Thunderstorm Watch	SPC	9 hr
Jun 13, 5:08 PM CDT	Special Weather Statement	JAN	52 min
Jun 13, 5:12 PM CDT	Severe Thunderstorm Warning	JAN	48 min
Jun 14, 3:04 AM CDT	Heat Advisory	JAN	12 hr
Jun 21, 6:11 PM CDT	Special Weather Statement	JAN	64 min
Jun 21, 6:55 PM CDT	Severe Thunderstorm Warning	JAN	47 min
Jun 21, 7:17 PM CDT	Mesoscale Discussion	SPC	118 min
Jul 7, 3:10 PM CDT	Flash Flood Warning	JAN	2 hr
Jul 18, 2:14 PM CDT	Mesoscale Discussion	SPC	2 hr
Jul 23, 2:40 PM CDT	Heat Advisory	JAN	28 hr
Jul 24, 2:55 PM CDT	Heat Advisory	JAN	28 hr
Jul 25, 2:32 PM CDT	Heat Advisory	JAN	28 hr
Jul 26, 2:54 PM CDT	Heat Advisory	JAN	28 hr
Jul 27, 2:54 PM CDT	Excessive Heat Warning	JAN	4 days
Jul 27, 2:54 PM CDT	Heat Advisory	JAN	5 days
Aug 1, 12:09 PM CDT	Mesoscale Discussion	SPC	2 hr
Aug 1, 8:55 PM CDT	Special Weather Statement	JAN	50 min
Aug 9, 2:26 PM CDT	Heat Advisory	JAN	3 days
Aug 11, 7:11 PM CDT	Special Weather Statement	JAN	34 min
Aug 15, 1:28 PM CDT	Special Weather Statement	JAN	32 min
Aug 19, 6:38 PM CDT	Special Weather Statement	JAN	52 min
Aug 20, 3:05 PM CDT	Heat Advisory	JAN	3 days
Aug 20, 8:02 PM CDT	River Flood Warning	JAN	36 hr
Aug 23, 3:27 PM CDT	Heat Advisory	JAN	28 hr
Aug 24, 3:01 PM CDT	Heat Advisory	JAN	28 hr
Aug 25, 3:10 PM CDT	Heat Advisory	JAN	28 hr
Aug 28, 3:36 AM CDT	Flash Flood Watch	JAN	66 hr
Aug 28, 10:00 AM CDT	Tropical Storm Warning	JAN	54 hr
Aug 29, 11:08 AM CDT	River Flood Warning	JAN	12 days
Aug 29, 4:00 PM CDT	Wind Advisory	JAN	30 hr
Sep 1, 4:08 AM CDT	Heat Advisory	JAN	15 hr
Sep 1, 4:02 PM CDT	Special Weather Statement	JAN	43 min
Sep 1, 4:35 PM CDT	Severe Thunderstorm Warning	JAN	40 min
Sep 1, 5:04 PM CDT	Severe Thunderstorm Warning	JAN	41 min
Sep 5, 6:03 PM CDT	Special Weather Statement	JAN	57 min
Sep 21, 11:51 AM CDT	Mesoscale Discussion	SPC	2 hr
Sep 21, 2:47 PM CDT	Mesoscale Discussion	SPC	2 hr
Oct 4, 2:54 AM CDT	Dense Fog Advisory	JAN	6 hr
Oct 5, 12:45 PM CDT	Mesoscale Discussion	SPC	2 hr
Oct 5, 2:49 PM CDT	Special Weather Statement	JAN	26 min
Oct 5, 4:02 PM CDT	Special Weather Statement	JAN	28 min
Nov 6, 2:29 AM CDT	Dense Fog Advisory	JAN	8 hr
Nov 6, 10:16 PM CDT	Dense Fog Advisory	JAN	13 hr
Nov 11, 9:29 PM CST	Dense Fog Advisory	JAN	12 hr
Nov 12, 2:59 PM CST	Freeze Watch	JAN	12 hr
Nov 13, 3:17 AM CST	Freeze Warning	JAN	29 hr
Dec 4, 3:02 PM CST	Dense Fog Advisory	JAN	18 hr
Dec 10, 10:00 PM CST	Mesoscale Discussion	SPC	90 min
Dec 11, 3:15 AM CST	Mesoscale Discussion	SPC	90 min
Dec 29, 10:44 AM CST	Mesoscale Discussion	SPC	2 hr
Dec 29, 12:05 PM CST	Tornado Watch	SPC	7 hr
Dec 29, 1:18 PM CST	Mesoscale Discussion	SPC	87 min
Dec 29, 3:41 PM CST	Mesoscale Discussion	SPC	64 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	11
Tornado Warning	4
Severe Thunderstorm Watch	3
Tornado Watch	6
Mesoscale Discussion	33
Special Weather Statement	14
Flooding
Areal Flood Warning	2
Flash Flood Warning	5
River Flood Warning	9
Flash Flood Watch	4
River Flood Advisory	3
Winter
Winter Storm Warning	3
Winter Storm Watch	2
Winter Weather Advisory	3
Heat
Excessive Heat Warning	1
Heat Advisory	12
Cold
Freeze Warning	3
Hard Freeze Warning	3
Freeze Watch	2
Wind Chill Advisory	1
Wind and dust
Wind Advisory	5
Fog and smoke
Dense Fog Advisory	5
Tropical
Tropical Storm Warning	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 2020 2022

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.