Alert archive / Arkansas / Mississippi County

Weather alerts in Mississippi County, Arkansas, 2021

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

Mississippi County and its neighbors

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

Alerts: 171
Warnings: 50
Watches: 19
Advisories: 56
Busiest month: December31 alerts
Busiest day: December 11, 202115 alerts

Over time

By month

Warning verification

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

6 of 13 tornado warnings covering Mississippi County in 2021 had a tornado report inside them; 6 of 7 tornado reports fell inside a warning, on average 34 minutes after it went out.

Mississippi County, 2021

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
Tornado warnings	13	6	54%	7	86%	34 min
Severe thunderstorm warnings	20	10	50%	9	33%	20 min
Flash flood warnings	5	3	40%	0

Each office's whole area, 2021

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS Memphis, TN: tornado warnings	83	35	58%	62	89%	22 min
NWS Memphis, TN: severe thunderstorm warnings	223	111	50%	326	72%	22 min
NWS Memphis, TN: flash flood warnings	92	56	39%	111	86%	108 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 15, 3:40 AM CST	Wind Advisory	MEG	14 hr
Jan 22, 1:58 AM CST	Dense Fog Advisory	MEG	6 hr
Jan 24, 6:14 PM CST	Dense Fog Advisory	MEG	12 hr
Jan 25, 7:59 PM CST	Dense Fog Advisory	MEG	13 hr
Feb 9, 4:01 AM CST	Winter Storm Watch	MEG	33 hr
Feb 9, 2:54 PM CST	Ice Storm Warning	MEG	45 hr
Feb 10, 10:36 PM CST	Mesoscale Discussion	SPC	5 hr
Feb 11, 4:02 AM CST	Mesoscale Discussion	SPC	5 hr
Feb 12, 12:40 AM CST	Winter Weather Advisory	MEG	5 hr
Feb 12, 3:17 PM CST	Winter Storm Watch	MEG	24 hr
Feb 13, 2:53 PM CST	Wind Chill Advisory	MEG	21 hr
Feb 13, 2:53 PM CST	Winter Storm Warning	MEG	54 hr
Feb 15, 5:57 AM CST	Mesoscale Discussion	SPC	6 hr
Feb 15, 3:02 PM CST	Wind Chill Advisory	MEG	21 hr
Feb 15, 8:48 PM CST	Winter Storm Watch	MEG	19 hr
Feb 16, 4:15 AM CST	Winter Storm Warning	MEG	53 hr
Feb 17, 3:22 PM CST	Mesoscale Discussion	SPC	4 hr
Feb 18, 2:54 PM CST	Wind Chill Advisory	MEG	18 hr
Feb 27, 2:55 AM CST	Flood Watch	MEG	56 hr
Feb 27, 9:03 PM CST	Dense Fog Advisory	MEG	7 hr
Feb 28, 1:01 PM CST	Mesoscale Discussion	SPC	119 min
Feb 28, 2:22 PM CST	Tornado Watch	SPC	8 hr
Feb 28, 3:37 PM CST	Flash Flood Warning	MEG	2 hr
Feb 28, 4:37 PM CST	Flash Flood Warning	MEG	5 hr
Feb 28, 4:40 PM CST	Mesoscale Discussion	SPC	95 min
Feb 28, 5:16 PM CST	Flash Flood Warning	MEG	3 hr
Feb 28, 5:34 PM CST	Severe Thunderstorm Warning	MEG	41 min
Feb 28, 6:00 PM CST	Flash Flood Warning	MEG	2 hr
Feb 28, 8:09 PM CST	Areal Flood Warning	MEG	6 hr
Feb 28, 8:21 PM CST	Areal Flood Advisory	MEG	6 hr
Mar 1, 2:06 AM CST	Areal Flood Warning	MEG	3 hr
Mar 1, 2:56 PM CST	River Flood Advisory	MEG	5 hr
Mar 1, 3:09 PM CST	River Flood Advisory	MEG	4 hr
Mar 1, 7:12 PM CST	River Flood Warning	MEG	40 days
Mar 1, 7:41 PM CST	River Flood Warning	MEG	41 days
Mar 10, 12:39 PM CST	Wind Advisory	MEG	6 hr
Mar 11, 9:49 AM CST	Wind Advisory	MEG	8 hr
Mar 22, 8:52 PM CDT	Wind Advisory	MEG	19 hr
Mar 27, 2:44 AM CDT	Flash Flood Watch	MEG	24 hr
Mar 27, 11:55 AM CDT	Mesoscale Discussion	SPC	3 hr
Mar 27, 1:51 PM CDT	Tornado Watch	SPC	7 hr
Mar 27, 5:38 PM CDT	Areal Flood Advisory	MEG	112 min
Mar 27, 5:42 PM CDT	Tornado Warning	MEG	48 min
Mar 27, 6:23 PM CDT	Tornado Warning Tornado observed	MEG	52 min
Mar 27, 6:42 PM CDT	Mesoscale Discussion	SPC	2 hr
Mar 27, 6:57 PM CDT	Special Weather Statement	MEG	48 min
Mar 27, 7:03 PM CDT	Tornado Warning	MEG	42 min
Mar 27, 7:10 PM CDT	Flash Flood Warning	MEG	3 hr
Mar 27, 8:07 PM CDT	Tornado Warning	MEG	38 min
Mar 27, 8:39 PM CDT	Severe Thunderstorm Warning	MEG	34 min
Mar 31, 5:31 AM CDT	Freeze Watch	MEG	9 hr
Mar 31, 5:31 AM CDT	Freeze Warning	MEG	27 hr
Mar 31, 2:34 PM CDT	Freeze Warning	MEG	42 hr
Apr 3, 1:24 AM CDT	Frost Advisory	MEG	8 hr
Apr 7, 11:20 AM CDT	Wind Advisory	MEG	8 hr
Apr 7, 5:12 PM CDT	Mesoscale Discussion	SPC	2 hr
Apr 7, 6:25 PM CDT	Special Weather Statement	MEG	50 min
Apr 7, 6:52 PM CDT	Areal Flood Advisory	MEG	2 hr
Apr 7, 7:21 PM CDT	Areal Flood Advisory	MEG	2 hr
Apr 7, 8:03 PM CDT	Areal Flood Advisory	MEG	108 min
Apr 9, 2:50 PM CDT	Mesoscale Discussion	SPC	85 min
Apr 9, 3:42 PM CDT	Severe Thunderstorm Watch	SPC	7 hr
Apr 9, 3:57 PM CDT	Severe Thunderstorm Warning	MEG	48 min
Apr 10, 12:38 PM CDT	River Flood Advisory	MEG	56 hr
Apr 11, 11:05 AM CDT	River Flood Advisory	MEG	58 hr
Apr 20, 2:18 PM CDT	Freeze Warning	MEG	19 hr
Apr 21, 3:02 AM CDT	Frost Advisory	MEG	30 hr
Apr 25, 3:00 AM CDT	Dense Fog Advisory	MEG	6 hr
Apr 28, 8:52 AM CDT	Mesoscale Discussion	SPC	113 min
Apr 28, 10:22 PM CDT	Mesoscale Discussion	SPC	113 min
Apr 29, 3:54 AM CDT	Special Weather Statement	MEG	51 min
Apr 29, 4:57 AM CDT	Special Weather Statement	MEG	48 min
Apr 29, 11:12 PM CDT	Dense Fog Advisory	MEG	10 hr
May 3, 8:38 PM CDT	Mesoscale Discussion	SPC	2 hr
May 4, 1:06 AM CDT	Mesoscale Discussion	SPC	114 min
May 4, 1:41 AM CDT	Severe Thunderstorm Watch	SPC	6 hr
May 4, 2:25 AM CDT	Severe Thunderstorm Warning	MEG	50 min
May 4, 2:34 AM CDT	Severe Thunderstorm Warning	MEG	41 min
May 4, 2:59 AM CDT	Severe Thunderstorm Warning	MEG	46 min
May 4, 6:25 PM CDT	Special Weather Statement	MEG	35 min
May 4, 6:29 PM CDT	Severe Thunderstorm Warning	MEG	46 min
May 6, 10:05 AM CDT	Mesoscale Discussion	SPC	85 min
May 6, 12:02 PM CDT	Mesoscale Discussion	SPC	118 min
May 6, 12:38 PM CDT	Severe Thunderstorm Watch	SPC	5 hr
May 6, 2:17 PM CDT	Severe Thunderstorm Warning	MEG	43 min
May 6, 2:45 PM CDT	Mesoscale Discussion	SPC	90 min
May 6, 3:03 PM CDT	Severe Thunderstorm Warning	MEG	42 min
May 8, 3:13 PM CDT	Wind Advisory	MEG	26 hr
May 9, 12:14 PM CDT	Mesoscale Discussion	SPC	91 min
May 9, 2:27 PM CDT	Severe Thunderstorm Watch	SPC	7 hr
May 9, 3:39 PM CDT	Severe Thunderstorm Warning	MEG	36 min
May 9, 3:42 PM CDT	Mesoscale Discussion	SPC	93 min
May 9, 3:47 PM CDT	Severe Thunderstorm Warning	MEG	28 min
May 9, 4:17 PM CDT	Severe Thunderstorm Warning	MEG	28 min
May 27, 5:21 PM CDT	Mesoscale Discussion	SPC	114 min
May 27, 6:56 PM CDT	Special Weather Statement	MEG	49 min
May 27, 7:27 PM CDT	Areal Flood Advisory	MEG	3 hr
May 27, 7:41 PM CDT	Special Weather Statement	MEG	34 min
May 27, 8:25 PM CDT	Special Weather Statement	MEG	35 min
Jun 12, 6:22 PM CDT	Special Weather Statement	MEG	23 min
Jun 12, 6:28 PM CDT	Severe Thunderstorm Warning	MEG	32 min
Jun 12, 6:59 PM CDT	Severe Thunderstorm Warning	MEG	46 min
Jun 12, 7:32 PM CDT	Areal Flood Advisory	MEG	118 min
Jun 12, 7:39 PM CDT	Severe Thunderstorm Warning	MEG	31 min
Jun 12, 7:47 PM CDT	Special Weather Statement	MEG	28 min
Jun 21, 11:35 AM CDT	Mesoscale Discussion	SPC	85 min
Jul 10, 11:30 PM CDT	Special Weather Statement	MEG	45 min
Jul 10, 11:55 PM CDT	Severe Thunderstorm Warning	MEG	50 min
Jul 24, 2:24 PM CDT	Heat Advisory	MEG	29 hr
Jul 25, 1:58 PM CDT	Heat Advisory	MEG	29 hr
Jul 26, 2:36 PM CDT	Heat Advisory	MEG	28 hr
Jul 28, 2:38 PM CDT	Heat Advisory	MEG	29 hr
Jul 29, 2:51 PM CDT	Heat Advisory	MEG	29 hr
Jul 30, 2:41 AM CDT	Heat Advisory	MEG	41 hr
Jul 31, 8:57 PM CDT	Severe Thunderstorm Warning	MEG	48 min
Jul 31, 9:06 PM CDT	Tornado Warning	MEG	24 min
Aug 8, 2:21 PM CDT	Heat Advisory	MEG	4 days
Aug 8, 3:11 PM CDT	Special Weather Statement	MEG	34 min
Aug 13, 12:24 PM CDT	Mesoscale Discussion	SPC	2 hr
Aug 13, 10:13 PM CDT	Dense Fog Advisory	MEG	10 hr
Aug 16, 4:00 AM CDT	Dense Fog Advisory	MEG	5 hr
Aug 22, 3:08 PM CDT	Heat Advisory	MEG	29 hr
Aug 23, 3:09 AM CDT	Heat Advisory	MEG	41 hr
Aug 24, 3:07 PM CDT	Heat Advisory	MEG	29 hr
Sep 16, 6:34 AM CDT	Dense Fog Advisory	MEG	2 hr
Oct 6, 10:39 PM CDT	Dense Fog Advisory	MEG	10 hr
Oct 15, 11:14 AM CDT	Mesoscale Discussion	SPC	3 hr
Oct 15, 12:28 PM CDT	Severe Thunderstorm Watch	SPC	9 hr
Oct 15, 2:52 PM CDT	Mesoscale Discussion	SPC	113 min
Oct 15, 4:25 PM CDT	Special Weather Statement	MEG	35 min
Oct 15, 4:42 PM CDT	Severe Thunderstorm Warning	MEG	48 min
Oct 15, 4:55 PM CDT	Tornado Warning	MEG	23 min
Oct 24, 10:34 PM CDT	Tornado Watch	SPC	4 hr
Nov 2, 4:02 AM CDT	Freeze Watch	MEG	23 hr
Nov 3, 3:26 AM CDT	Freeze Watch	MEG	24 hr
Nov 3, 3:26 AM CDT	Freeze Warning	MEG	30 hr
Nov 4, 3:14 AM CDT	Freeze Warning	MEG	30 hr
Nov 7, 2:23 AM CST	Dense Fog Advisory	MEG	5 hr
Nov 10, 6:12 AM CST	Dense Fog Advisory	MEG	2 hr
Nov 11, 3:05 AM CST	Special Weather Statement	MEG	40 min
Dec 2, 3:02 AM CST	Dense Fog Advisory	MEG	6 hr
Dec 5, 5:05 PM CST	Mesoscale Discussion	SPC	2 hr
Dec 5, 8:54 PM CST	Severe Thunderstorm Watch	SPC	7 hr
Dec 6, 2:55 AM CST	Special Weather Statement	MEG	35 min
Dec 6, 3:01 AM CST	Mesoscale Discussion	SPC	59 min
Dec 10, 1:35 AM CST	Dense Fog Advisory	MEG	7 hr
Dec 10, 1:35 PM CST	Mesoscale Discussion	SPC	2 hr
Dec 10, 3:07 PM CST	Tornado Watch	SPC	11 hr
Dec 10, 4:45 PM CST	Mesoscale Discussion	SPC	90 min
Dec 10, 6:22 PM CST	Mesoscale Discussion	SPC	53 min
Dec 10, 6:39 PM CST	Tornado Warning	MEG	51 min
Dec 10, 7:06 PM CST	Tornado Warning Tornado observedConsiderable damage threat	MEG	39 min
Dec 10, 7:28 PM CST	Tornado Warning EmergencyTornado observedConsiderable damage threat	MEG	47 min
Dec 10, 9:18 PM CST	Tornado Warning	MEG	42 min
Dec 10, 9:24 PM CST	Tornado Warning	MEG	51 min
Dec 10, 9:25 PM CST	Severe Thunderstorm Warning Considerable damage threat	MEG	50 min
Dec 10, 9:40 PM CST	Mesoscale Discussion	SPC	2 hr
Dec 10, 9:52 PM CST	Tornado Warning	MEG	38 min
Dec 10, 10:01 PM CST	Tornado Warning	MEG	44 min
Dec 10, 10:09 PM CST	Mesoscale Discussion	SPC	96 min
Dec 10, 10:44 PM CST	Tornado Watch	SPC	6 hr
Dec 10, 11:20 PM CST	Severe Thunderstorm Warning	MEG	15 min
Dec 10, 11:41 PM CST	Areal Flood Advisory	MEG	3 hr
Dec 11, 6:56 AM CST	Wind Advisory	MEG	5 hr
Dec 17, 3:31 PM CST	Dense Fog Advisory	MEG	10 hr
Dec 24, 8:25 AM CST	Wind Advisory	MEG	22 hr
Dec 25, 9:40 PM CST	Dense Fog Advisory	MEG	14 hr
Dec 28, 11:58 AM CST	Wind Advisory	MEG	4 hr
Dec 29, 1:42 PM CST	Areal Flood Advisory	MEG	4 hr
Dec 29, 9:47 PM CST	Dense Fog Advisory	MEG	14 hr
Dec 30, 7:57 PM CST	Dense Fog Advisory	MEG	13 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	20
Tornado Warning	13
Severe Thunderstorm Watch	6
Tornado Watch	5
Mesoscale Discussion	31
Special Weather Statement	15
Flooding
Areal Flood Warning	2
Flash Flood Warning	5
River Flood Warning	2
Flash Flood Watch	1
Flood Watch	1
Areal Flood Advisory	9
River Flood Advisory	4
Winter
Ice Storm Warning	1
Winter Storm Warning	2
Winter Storm Watch	3
Winter Weather Advisory	1
Heat
Heat Advisory	10
Cold
Freeze Warning	5
Freeze Watch	3
Frost Advisory	2
Wind Chill Advisory	3
Wind and dust
Wind Advisory	9
Fog and smoke
Dense Fog Advisory	18

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.