Alert archive / Louisiana / Saint Bernard Parish

Weather alerts in Saint Bernard Parish, Louisiana, 2021

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

Saint Bernard Parish and its neighbors

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

Alerts: 187
Warnings: 39
Watches: 29
Advisories: 92
Busiest month: August34 alerts
Busiest day: August 29, 20217 alerts

Over time

By month

Warning verification

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

1 of 5 tornado warnings covering Saint Bernard Parish in 2021 had a tornado report inside them.

Saint Bernard Parish, 2021

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
Tornado warnings	5	1	80%	0
Severe thunderstorm warnings	6	4	33%	1	100%	17 min
Flash flood warnings	14	6	57%	5	80%	33 min

Each office's whole area, 2021

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS New Orleans, LA: tornado warnings	79	16	80%	39	69%	8 min
NWS New Orleans, LA: severe thunderstorm warnings	154	36	77%	116	57%	14 min
NWS New Orleans, LA: flash flood warnings	130	52	60%	134	85%	91 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 19, 11:46 PM CST	Dense Fog Advisory	LIX	7 hr
Jan 23, 3:33 PM CST	Dense Fog Advisory	LIX	18 hr
Jan 24, 3:25 PM CST	Dense Fog Advisory	LIX	19 hr
Jan 27, 3:40 AM CST	Dense Fog Advisory	LIX	5 hr
Feb 9, 4:55 AM CST	Dense Fog Advisory	LIX	4 hr
Feb 9, 8:49 PM CST	Dense Fog Advisory	LIX	13 hr
Feb 10, 3:16 PM CST	Dense Fog Advisory	LIX	18 hr
Feb 11, 12:04 PM CST	Areal Flood Advisory	LIX	3 hr
Feb 14, 4:20 AM CST	Hard Freeze Watch	LIX	15 hr
Feb 14, 4:20 AM CST	Wind Chill Watch	LIX	15 hr
Feb 14, 7:17 PM CST	Hard Freeze Warning	LIX	41 hr
Feb 14, 7:17 PM CST	Wind Chill Advisory	LIX	41 hr
Feb 16, 6:21 PM CST	Freeze Warning	LIX	14 hr
Feb 16, 10:02 PM CST	Winter Weather Advisory	LIX	14 hr
Feb 17, 5:38 PM CST	Mesoscale Discussion	SPC	3 hr
Feb 18, 10:04 AM CST	Freeze Warning	LIX	23 hr
Feb 25, 3:06 AM CST	Dense Fog Advisory	LIX	6 hr
Feb 25, 5:58 PM CST	Dense Fog Advisory	LIX	15 hr
Feb 26, 3:44 PM CST	Dense Fog Advisory	LIX	17 hr
Feb 27, 3:34 PM CST	Dense Fog Advisory	LIX	17 hr
Feb 28, 3:50 PM CST	Dense Fog Advisory	LIX	17 hr
Mar 12, 3:19 PM CST	Dense Fog Advisory	LIX	18 hr
Mar 17, 3:33 AM CDT	Wind Advisory	LIX	18 hr
Mar 17, 1:45 PM CDT	Mesoscale Discussion	SPC	90 min
Mar 17, 2:38 PM CDT	Tornado Watch	SPC	8 hr
Mar 17, 7:26 PM CDT	Mesoscale Discussion	SPC	94 min
Mar 22, 12:37 PM CDT	Flash Flood Watch	LIX	63 hr
Mar 23, 3:57 AM CDT	Wind Advisory	LIX	11 hr
Mar 23, 12:47 PM CDT	Areal Flood Advisory	LIX	3 hr
Mar 23, 1:18 PM CDT	Flash Flood Warning	LIX	2 hr
Mar 23, 4:09 PM CDT	Areal Flood Advisory	LIX	3 hr
Mar 23, 7:35 PM CDT	Areal Flood Advisory	LIX	5 hr
Mar 24, 2:47 PM CDT	Wind Advisory	LIX	25 hr
Mar 24, 9:25 PM CDT	Mesoscale Discussion	SPC	65 min
Mar 30, 10:43 AM CDT	Wind Advisory	LIX	81 min
Mar 30, 2:11 PM CDT	Wind Advisory	LIX	45 hr
Apr 1, 11:44 AM CDT	Wind Advisory	LIX	5 hr
Apr 8, 2:08 AM CDT	Mesoscale Discussion	SPC	2 hr
Apr 9, 2:49 AM CDT	Mesoscale Discussion	SPC	2 hr
Apr 10, 4:58 AM CDT	Severe Thunderstorm Warning	LIX	47 min
Apr 10, 5:24 AM CDT	Flash Flood Warning	LIX	3 hr
Apr 13, 4:14 AM CDT	Flash Flood Watch	LIX	5 days
Apr 13, 11:43 AM CDT	Mesoscale Discussion	SPC	2 hr
Apr 13, 12:06 PM CDT	Severe Thunderstorm Watch	SPC	6 hr
Apr 13, 6:17 PM CDT	Wind Advisory	LIX	6 hr
Apr 14, 5:03 PM CDT	Areal Flood Advisory	LIX	3 hr
Apr 17, 10:17 AM CDT	Mesoscale Discussion	SPC	118 min
Apr 17, 11:57 AM CDT	Areal Flood Advisory	LIX	3 hr
Apr 17, 1:25 PM CDT	Flash Flood Warning	LIX	3 hr
Apr 24, 12:29 PM CDT	Mesoscale Discussion	SPC	2 hr
May 1, 2:46 PM CDT	Flash Flood Watch	LIX	24 hr
May 2, 9:09 PM CDT	Severe Thunderstorm Warning	LIX	36 min
May 4, 4:11 AM CDT	Flash Flood Watch	LIX	33 hr
May 5, 12:47 AM CDT	Areal Flood Advisory	LIX	103 min
May 5, 8:00 AM CDT	Areal Flood Advisory	LIX	2 hr
May 5, 8:25 AM CDT	Flash Flood Warning	LIX	2 hr
May 9, 8:48 PM CDT	Flash Flood Watch	LIX	15 hr
May 10, 2:43 AM CDT	Areal Flood Advisory	LIX	2 hr
May 10, 3:41 AM CDT	Tornado Warning	LIX	18 min
May 10, 4:20 AM CDT	Flash Flood Warning	LIX	115 min
May 11, 3:11 AM CDT	Flash Flood Watch	LIX	39 hr
May 11, 12:28 PM CDT	Areal Flood Advisory	LIX	2 hr
May 12, 1:58 AM CDT	Areal Flood Advisory	LIX	81 min
May 12, 1:58 AM CDT	Severe Thunderstorm Warning	LIX	32 min
May 12, 2:08 AM CDT	Tornado Warning	LIX	12 min
May 17, 2:48 AM CDT	Coastal Flood Advisory	LIX	7 days
May 17, 2:56 PM CDT	Flash Flood Watch	LIX	4 days
May 18, 5:26 AM CDT	Severe Thunderstorm Warning	LIX	49 min
May 18, 4:00 PM CDT	Coastal Flood Warning	LIX	6 days
May 19, 3:54 AM CDT	Wind Advisory	LIX	18 hr
May 19, 1:54 PM CDT	Wind Advisory	LIX	27 hr
May 19, 4:20 PM CDT	Special Weather Statement	LIX	55 min
May 20, 3:56 PM CDT	Wind Advisory	LIX	27 hr
May 22, 10:18 AM CDT	Coastal Flood Advisory	LIX	34 hr
Jun 4, 10:56 AM CDT	Flash Flood Watch	LIX	56 hr
Jun 6, 9:56 AM CDT	Mesoscale Discussion	SPC	3 hr
Jun 6, 11:32 AM CDT	Special Weather Statement	LIX	43 min
Jun 13, 12:22 PM CDT	Severe Thunderstorm Watch	SPC	9 hr
Jun 13, 12:51 PM CDT	Mesoscale Discussion	SPC	114 min
Jun 13, 4:33 PM CDT	Special Weather Statement	LIX	42 min
Jun 14, 4:08 AM CDT	Heat Advisory	LIX	8 hr
Jun 17, 1:30 PM CDT	Coastal Flood Warning	LIX	47 hr
Jun 17, 1:30 PM CDT	Coastal Flood Advisory	LIX	54 hr
Jun 17, 1:36 PM CDT	Flash Flood Watch	LIX	47 hr
Jun 17, 4:02 PM CDT	Tropical Storm Warning	LIX	48 hr
Jun 18, 9:44 AM CDT	Wind Advisory	LIX	30 hr
Jun 18, 7:15 PM CDT	Areal Flood Advisory	LIX	101 min
Jun 18, 8:45 PM CDT	Special Weather Statement	LIX	30 min
Jun 18, 9:02 PM CDT	Special Weather Statement	LIX	28 min
Jun 18, 9:32 PM CDT	Special Weather Statement	LIX	13 min
Jun 19, 1:08 AM CDT	Mesoscale Discussion	SPC	3 hr
Jun 19, 1:14 AM CDT	Special Weather Statement	LIX	46 min
Jun 21, 2:39 PM CDT	Areal Flood Advisory	LIX	3 hr
Jun 21, 7:56 PM CDT	Flood Watch	LIX	6 min
Jun 21, 8:05 PM CDT	Flash Flood Watch	LIX	23 hr
Jun 23, 11:01 AM CDT	Flash Flood Warning	LIX	3 hr
Jul 3, 1:23 PM CDT	Areal Flood Advisory	LIX	3 hr
Jul 3, 1:31 PM CDT	Flash Flood Warning	LIX	111 min
Jul 5, 4:38 AM CDT	Flash Flood Warning	LIX	88 min
Jul 11, 4:32 PM CDT	Areal Flood Advisory	LIX	40 min
Jul 11, 5:12 PM CDT	Flash Flood Warning	LIX	49 min
Jul 17, 1:01 PM CDT	Areal Flood Advisory	LIX	119 min
Jul 22, 1:43 PM CDT	Heat Advisory	LIX	29 hr
Jul 24, 3:20 PM CDT	Heat Advisory	LIX	28 hr
Jul 25, 3:20 PM CDT	Heat Advisory	LIX	28 hr
Jul 26, 3:11 PM CDT	Heat Advisory	LIX	28 hr
Jul 27, 3:27 PM CDT	Heat Advisory	LIX	28 hr
Jul 28, 1:44 PM CDT	Heat Advisory	LIX	29 hr
Jul 28, 1:44 PM CDT	Heat Advisory	LIX	38 hr
Jul 29, 1:40 PM CDT	Excessive Heat Watch	LIX	26 hr
Jul 29, 1:40 PM CDT	Excessive Heat Warning	LIX	29 hr
Jul 29, 1:40 PM CDT	Heat Advisory	LIX	50 hr
Jul 30, 3:55 PM CDT	Excessive Heat Warning	LIX	24 hr
Jul 31, 3:57 PM CDT	Heat Advisory	LIX	26 hr
Aug 3, 8:50 AM CDT	Areal Flood Advisory	LIX	19 min
Aug 3, 3:39 PM CDT	Areal Flood Advisory	LIX	119 min
Aug 9, 1:36 PM CDT	Areal Flood Advisory	LIX	114 min
Aug 15, 4:49 AM CDT	Coastal Flood Advisory	LIX	50 hr
Aug 19, 2:58 AM CDT	Heat Advisory	LIX	16 hr
Aug 19, 1:26 PM CDT	Excessive Heat Watch	LIX	24 hr
Aug 19, 1:26 PM CDT	Heat Advisory	LIX	30 hr
Aug 20, 3:01 AM CDT	Excessive Heat Watch	LIX	36 hr
Aug 20, 1:26 PM CDT	Excessive Heat Warning	LIX	26 hr
Aug 20, 1:26 PM CDT	Heat Advisory	LIX	26 hr
Aug 21, 3:30 PM CDT	Heat Advisory	LIX	28 hr
Aug 22, 3:26 PM CDT	Heat Advisory	LIX	28 hr
Aug 23, 1:57 PM CDT	Heat Advisory	LIX	29 hr
Aug 26, 10:09 PM CDT	Hurricane Watch	LIX	36 hr
Aug 26, 10:09 PM CDT	Storm Surge Watch	LIX	18 hr
Aug 27, 10:17 AM CDT	Flash Flood Watch	LIX	12 hr
Aug 27, 4:01 PM CDT	Hurricane Warning	LIX	60 hr
Aug 27, 4:01 PM CDT	Tropical Storm Warning	LIX	24 days
Aug 27, 4:12 PM CDT	Storm Surge Warning	LIX	3 days
Aug 28, 2:36 AM CDT	Flood Watch	LIX	11 min
Aug 28, 3:13 AM CDT	Flash Flood Watch	LIX	61 hr
Aug 29, 5:07 AM CDT	Mesoscale Discussion	SPC	2 hr
Aug 29, 6:07 AM CDT	Tornado Watch	SPC	13 hr
Aug 29, 7:49 AM CDT	Extreme Wind Warning	LIX	3 hr
Aug 29, 10:30 AM CDT	Extreme Wind Warning	LIX	3 hr
Aug 29, 4:08 PM CDT	Flash Flood Warning Emergency	LIX	8 hr
Aug 29, 6:25 PM CDT	Tornado Warning	LIX	35 min
Aug 29, 6:49 PM CDT	Tornado Watch	SPC	11 hr
Aug 30, 2:44 AM CDT	Mesoscale Discussion	SPC	2 hr
Aug 30, 2:57 PM CDT	Heat Advisory	LIX	26 hr
Aug 31, 4:06 AM CDT	Heat Advisory	LIX	38 hr
Aug 31, 1:21 PM CDT	Special Weather Statement	LIX	39 min
Aug 31, 1:58 PM CDT	Special Weather Statement	LIX	32 min
Aug 31, 2:49 PM CDT	Flash Flood Warning Considerable damage threat	LIX	88 min
Sep 1, 1:00 AM CDT	Heat Advisory	LIX	40 hr
Sep 3, 4:13 AM CDT	Heat Advisory	LIX	14 hr
Sep 4, 3:20 AM CDT	Heat Advisory	LIX	15 hr
Sep 4, 3:28 PM CDT	Heat Advisory	LIX	27 hr
Sep 5, 2:57 PM CDT	Heat Advisory	LIX	27 hr
Sep 6, 4:00 AM CDT	Flash Flood Watch	LIX	17 hr
Sep 6, 1:54 PM CDT	Flash Flood Warning	LIX	111 min
Sep 13, 2:45 PM CDT	Flash Flood Watch	LIX	5 days
Sep 14, 4:08 AM CDT	Coastal Flood Advisory	LIX	63 hr
Sep 14, 10:41 AM CDT	Areal Flood Advisory	LIX	2 hr
Sep 14, 11:41 AM CDT	Flash Flood Warning	LIX	3 hr
Sep 14, 12:32 PM CDT	Mesoscale Discussion	SPC	88 min
Sep 15, 2:33 AM CDT	Areal Flood Advisory	LIX	117 min
Sep 15, 3:29 AM CDT	Tornado Warning	LIX	31 min
Sep 15, 4:09 AM CDT	Tornado Warning	LIX	13 min
Sep 15, 4:49 AM CDT	Mesoscale Discussion	SPC	116 min
Sep 17, 7:32 AM CDT	Special Weather Statement	LIX	58 min
Sep 18, 12:31 PM CDT	Areal Flood Advisory	LIX	2 hr
Sep 19, 2:37 PM CDT	Areal Flood Advisory	LIX	113 min
Sep 22, 9:03 AM CDT	Wind Advisory	LIX	10 hr
Sep 28, 4:43 PM CDT	Areal Flood Advisory	LIX	2 hr
Sep 28, 5:02 PM CDT	Areal Flood Advisory	LIX	118 min
Sep 28, 5:19 PM CDT	Flash Flood Warning	LIX	2 hr
Sep 28, 5:59 PM CDT	Areal Flood Advisory	LIX	3 hr
Oct 27, 1:53 PM CDT	Tornado Watch	SPC	8 hr
Oct 27, 5:13 PM CDT	Mesoscale Discussion	SPC	2 hr
Oct 27, 5:56 PM CDT	Severe Thunderstorm Warning	LIX	49 min
Oct 27, 6:47 PM CDT	Areal Flood Advisory	LIX	109 min
Oct 27, 6:49 PM CDT	Severe Thunderstorm Warning	LIX	41 min
Oct 27, 10:34 PM CDT	Wind Advisory	LIX	20 hr
Dec 1, 4:08 PM CST	Dense Fog Advisory	LIX	18 hr
Dec 2, 3:26 PM CST	Dense Fog Advisory	LIX	19 hr
Dec 3, 10:02 AM CST	Dense Fog Advisory	LIX	70 min
Dec 3, 3:32 PM CST	Dense Fog Advisory	LIX	18 hr
Dec 4, 3:17 PM CST	Dense Fog Advisory	LIX	18 hr
Dec 7, 4:57 PM CST	Dense Fog Advisory	LIX	16 hr
Dec 9, 7:21 PM CST	Dense Fog Advisory	LIX	15 hr
Dec 16, 3:22 PM CST	Dense Fog Advisory	LIX	18 hr
Dec 17, 7:00 PM CST	Dense Fog Advisory	LIX	15 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
Extreme Wind Warning	2
Severe Thunderstorm Warning	6
Tornado Warning	5
Severe Thunderstorm Watch	2
Tornado Watch	4
Mesoscale Discussion	17
Special Weather Statement	10
Flooding
Flash Flood Warning	14
Flash Flood Watch	14
Flood Watch	2
Areal Flood Advisory	27
Winter
Winter Weather Advisory	1
Heat
Excessive Heat Warning	3
Excessive Heat Watch	3
Heat Advisory	23
Cold
Freeze Warning	2
Hard Freeze Warning	1
Hard Freeze Watch	1
Wind Chill Watch	1
Wind Chill Advisory	1
Wind and dust
Wind Advisory	13
Fog and smoke
Dense Fog Advisory	22
Tropical
Hurricane Warning	1
Storm Surge Warning	1
Tropical Storm Warning	2
Hurricane Watch	1
Storm Surge Watch	1
Coast and beach
Coastal Flood Warning	2
Coastal Flood Advisory	5

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.