Alert archive / Alabama / Marion County

Weather alerts in Marion County, Alabama, 2020

136 weather alerts in 2020, 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 2020. Tap one for its archive.

Alerts
136
Warnings
16
Watches
18
Advisories
47
Busiest month
February20 alerts
Busiest day
August 28, 20208 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 1 tornado warnings covering Marion County in 2020 had a tornado report inside them.

Marion County, 2020

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings10100%0
Severe thunderstorm warnings10550%757%31 min
Flash flood warnings2150%1100%277 min

Each office's whole area, 2020

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Birmingham, AL: tornado warnings401660%6268%17 min
NWS Birmingham, AL: severe thunderstorm warnings20615027%66366%25 min
NWS Birmingham, AL: flash flood warnings362725%12382%117 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.

IssuedProductOfficeLasted
Jan 1, 3:35 AM CSTFlood WatchBMX62 hr
Jan 2, 7:21 PM CSTAreal Flood AdvisoryBMX3 hr
Jan 2, 10:49 PM CSTAreal Flood AdvisoryBMX116 min
Jan 3, 4:59 AM CSTDense Fog AdvisoryBMX4 hr
Jan 9, 1:49 PM CSTWind AdvisoryBMX55 hr
Jan 11, 6:57 AM CSTTornado WatchSPC7 hr
Jan 11, 7:39 AM CSTSevere Thunderstorm WarningBMX66 min
Jan 11, 9:28 AM CSTMesoscale DiscussionSPC92 min
Jan 11, 9:40 AM CSTSpecial Weather StatementBMX65 min
Jan 11, 10:07 AM CSTAreal Flood AdvisoryBMX3 hr
Jan 11, 10:47 AM CSTSpecial Weather StatementBMX43 min
Jan 11, 12:35 PM CSTAreal Flood AdvisoryBMX115 min
Jan 14, 3:03 AM CSTFlash Flood WatchBMX18 hr
Jan 14, 10:03 AM CSTAreal Flood AdvisoryBMX3 hr
Jan 27, 5:07 AM CSTDense Fog AdvisoryBMX4 hr
Feb 5, 3:47 PM CSTMesoscale DiscussionSPC118 min
Feb 5, 4:25 PM CSTTornado WatchSPC5 hr
Feb 5, 6:05 PM CSTAreal Flood AdvisoryBMX3 hr
Feb 5, 6:26 PM CSTSpecial Weather StatementBMX49 min
Feb 9, 3:52 AM CSTFlood WatchBMX24 hr
Feb 10, 3:40 AM CSTFlash Flood WatchBMX30 hr
Feb 10, 10:13 AM CSTAreal Flood AdvisoryBMX6 hr
Feb 10, 11:53 AM CSTFlash Flood WarningBMX6 hr
Feb 10, 11:13 PM CSTAreal Flood AdvisoryBMX6 hr
Feb 11, 12:26 AM CSTAreal Flood WarningBMX6 hr
Feb 11, 3:43 PM CSTFlash Flood WatchBMX38 hr
Feb 12, 1:46 PM CSTMesoscale DiscussionSPC119 min
Feb 12, 4:34 PM CSTSevere Thunderstorm WatchSPC5 hr
Feb 12, 4:38 PM CSTSpecial Weather StatementBMX67 min
Feb 12, 5:26 PM CSTSevere Thunderstorm WarningBMX34 min
Feb 12, 10:23 PM CSTAreal Flood AdvisoryBMX7 hr
Feb 17, 11:52 PM CSTSpecial Weather StatementBMX23 min
Feb 18, 2:57 AM CSTFlash Flood WatchBMX22 hr
Feb 18, 10:40 AM CSTAreal Flood AdvisoryBMX6 hr
Feb 18, 4:31 PM CSTAreal Flood AdvisoryBMX5 hr
Mar 3, 2:52 AM CSTMesoscale DiscussionSPC2 hr
Mar 5, 9:34 PM CSTDense Fog AdvisoryBMX8 hr
Mar 11, 12:26 PM CDTSevere Thunderstorm WatchSPC5 hr
Mar 11, 2:29 PM CDTMesoscale DiscussionSPC91 min
Mar 18, 3:08 AM CDTDense Fog AdvisoryBMX6 hr
Mar 22, 11:24 PM CDTMesoscale DiscussionSPC2 hr
Mar 24, 2:34 PM CDTMesoscale DiscussionSPC116 min
Mar 24, 3:06 PM CDTTornado WatchSPC7 hr
Mar 24, 6:14 PM CDTSpecial Weather StatementBMX31 min
Mar 24, 6:33 PM CDTSpecial Weather StatementBMX27 min
Mar 24, 6:38 PM CDTSevere Thunderstorm WarningBMX52 min
Mar 24, 6:59 PM CDTTornado WarningBMX46 min
Mar 24, 7:09 PM CDTSpecial Weather StatementBMX36 min
Mar 28, 8:25 PM CDTMesoscale DiscussionSPC95 min
Mar 28, 9:58 PM CDTTornado WatchSPC7 hr
Mar 28, 11:27 PM CDTMesoscale DiscussionSPC93 min
Mar 29, 2:08 AM CDTSevere Thunderstorm WarningBMX52 min
Mar 29, 2:17 AM CDTMesoscale DiscussionSPC88 min
Apr 8, 5:50 AM CDTDense Fog AdvisoryBMX3 hr
Apr 9, 1:10 AM CDTMesoscale DiscussionSPC95 min
Apr 9, 1:44 AM CDTSpecial Weather StatementBMX46 min
Apr 11, 2:04 PM CDTWind AdvisoryBMX42 hr
Apr 12, 3:07 AM CDTFlash Flood WatchBMX21 hr
Apr 12, 12:23 PM CDTSpecial Weather StatementBMX37 min
Apr 12, 1:45 PM CDTMesoscale DiscussionSPC90 min
Apr 12, 3:20 PM CDTTornado WatchSPC8 hr
Apr 12, 3:33 PM CDTSevere Thunderstorm WarningBMX40 min
Apr 12, 5:44 PM CDTMesoscale DiscussionSPC91 min
Apr 12, 8:14 PM CDTAreal Flood AdvisoryBMX5 hr
Apr 12, 11:16 PM CDTSpecial Weather StatementBMX74 min
Apr 12, 11:19 PM CDTMesoscale DiscussionSPC86 min
Apr 14, 1:48 AM CDTFrost AdvisoryBMX30 hr
Apr 19, 2:34 AM CDTMesoscale DiscussionSPC116 min
Apr 22, 10:23 PM CDTWind AdvisoryBMX14 hr
Apr 25, 4:40 PM CDTWind AdvisoryBMX5 hr
Apr 26, 2:42 AM CDTWind AdvisoryBMX16 hr
May 6, 2:39 AM CDTWind AdvisoryBMX18 hr
May 7, 3:12 PM CDTWind AdvisoryBMX26 hr
May 9, 2:46 AM CDTFrost AdvisoryBMX29 hr
May 17, 10:19 PM CDTSpecial Weather StatementBMX41 min
May 22, 6:49 AM CDTSpecial Weather StatementBMX41 min
Jun 5, 9:53 AM CDTMesoscale DiscussionSPC2 hr
Jun 5, 3:59 PM CDTSpecial Weather StatementBMX46 min
Jun 5, 4:07 PM CDTAreal Flood AdvisoryBMX38 min
Jun 5, 4:25 PM CDTSevere Thunderstorm WarningBMX50 min
Jun 5, 4:45 PM CDTFlash Flood WarningBMX3 hr
Jun 7, 10:43 AM CDTWind AdvisoryBMX32 hr
Jun 8, 5:28 PM CDTMesoscale DiscussionSPC2 hr
Jun 22, 3:02 PM CDTSpecial Weather StatementBMX43 min
Jun 23, 1:28 PM CDTSpecial Weather StatementBMX47 min
Jun 24, 1:52 PM CDTAreal Flood AdvisoryBMX3 hr
Jun 24, 2:43 PM CDTAreal Flood AdvisoryBMX3 hr
Jun 29, 1:48 PM CDTSpecial Weather StatementBMX42 min
Jun 30, 6:09 AM CDTSpecial Weather StatementBMX51 min
Jun 30, 7:48 AM CDTSpecial Weather StatementBMX27 min
Jun 30, 8:17 AM CDTSpecial Weather StatementBMX28 min
Jul 1, 12:53 AM CDTSpecial Weather StatementBMX52 min
Jul 1, 8:57 AM CDTAreal Flood AdvisoryBMX3 hr
Jul 1, 6:50 PM CDTSpecial Weather StatementBMX55 min
Jul 1, 8:01 PM CDTSpecial Weather StatementBMX59 min
Jul 4, 4:48 PM CDTSpecial Weather StatementBMX27 min
Jul 4, 5:16 PM CDTSpecial Weather StatementBMX29 min
Jul 4, 5:43 PM CDTAreal Flood AdvisoryBMX2 hr
Jul 4, 6:08 PM CDTSpecial Weather StatementBMX37 min
Jul 5, 1:22 PM CDTSpecial Weather StatementBMX23 min
Jul 10, 3:11 AM CDTHeat AdvisoryBMX16 hr
Jul 12, 9:03 AM CDTSpecial Weather StatementBMX42 min
Jul 12, 10:46 AM CDTMesoscale DiscussionSPC119 min
Jul 12, 11:18 AM CDTSevere Thunderstorm WarningBMX57 min
Jul 12, 12:02 PM CDTAreal Flood AdvisoryBMX3 hr
Jul 13, 3:10 AM CDTDense Fog AdvisoryBMX6 hr
Jul 15, 1:37 PM CDTHeat AdvisoryBMX53 hr
Jul 20, 8:17 PM CDTAreal Flood AdvisoryBMX118 min
Jul 21, 3:35 PM CDTSpecial Weather StatementBMX25 min
Jul 31, 5:23 PM CDTMesoscale DiscussionSPC2 hr
Aug 26, 6:02 AM CDTAreal Flood AdvisoryBMX3 hr
Aug 27, 2:50 PM CDTSpecial Weather StatementBMX40 min
Aug 28, 10:31 AM CDTTornado WatchSPC5 hr
Aug 28, 2:28 PM CDTSpecial Weather StatementBMX47 min
Aug 28, 3:36 PM CDTSevere Thunderstorm WarningBMX39 min
Aug 28, 3:46 PM CDTTornado WatchSPC4 hr
Aug 28, 4:15 PM CDTSpecial Weather StatementBMX45 min
Aug 28, 4:32 PM CDTSevere Thunderstorm WarningBMX43 min
Aug 28, 5:10 PM CDTAreal Flood AdvisoryBMX2 hr
Aug 28, 5:21 PM CDTSevere Thunderstorm WarningBMX54 min
Aug 30, 1:39 PM CDTMesoscale DiscussionSPC3 hr
Oct 16, 9:30 PM CDTFrost AdvisoryBMX11 hr
Oct 23, 7:30 PM CDTSpecial Weather StatementBMX30 min
Oct 31, 3:08 AM CDTFreeze WatchBMX24 hr
Nov 1, 2:14 AM CSTFreeze WarningBMX30 hr
Nov 2, 1:22 PM CSTFrost AdvisoryBMX18 hr
Nov 15, 6:37 AM CSTSpecial Weather StatementBMX23 min
Nov 15, 6:54 AM CSTSpecial Weather StatementBMX66 min
Nov 16, 9:21 PM CSTFrost AdvisoryBMX11 hr
Nov 17, 1:40 AM CSTFreeze WatchBMX7 hr
Nov 17, 8:51 AM CSTFreeze WarningBMX23 hr
Nov 26, 6:26 AM CSTDense Fog AdvisoryBMX3 hr
Dec 5, 8:21 AM CSTDense Fog AdvisoryBMX99 min
Dec 6, 3:23 AM CSTFreezing Fog AdvisoryBMX5 hr
Dec 12, 6:57 PM CSTDense Fog AdvisoryBMX15 hr
Dec 23, 2:43 PM CSTWind AdvisoryBMX27 hr

By product

Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force nowTornadoes on recordForecastThe radar archive20192021

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.