Alert archive / Mississippi / Leflore County

Weather alerts in Leflore County, Mississippi, 2020

104 weather alerts in 2020, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Leflore County and its neighbors

Each county as a circle sized by its count in 2020. Tap one for its archive.

Alerts
104
Warnings
29
Watches
16
Advisories
19
Busiest month
April22 alerts
Busiest day
August 27, 20205 alerts

Over time

By month

Warning verification

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

Leflore County, 2020

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings00
Severe thunderstorm warnings131023%5100%24 min
Flash flood warnings330%0

Each office's whole area, 2020

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Jackson, MS: tornado warnings603738%14985%26 min
NWS Jackson, MS: severe thunderstorm warnings42326837%89883%26 min
NWS Jackson, MS: flash flood warnings1087332%27685%87 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, 3:07 AM CSTFlash Flood WatchJAN57 hr
Jan 1, 10:42 AM CSTRiver Flood WarningJAN21 days
Jan 9, 2:27 PM CSTWind AdvisoryJAN48 hr
Jan 10, 4:53 AM CSTMesoscale DiscussionSPC2 hr
Jan 10, 11:37 AM CSTRiver Flood WarningJAN7 days
Jan 10, 11:58 PM CSTTornado WatchSPC7 hr
Jan 11, 3:52 AM CSTMesoscale DiscussionSPC83 min
Jan 11, 4:18 AM CSTSevere Thunderstorm WarningJAN57 min
Jan 14, 3:00 AM CSTFlash Flood WatchJAN21 hr
Jan 24, 5:44 AM CSTRiver Flood WarningJAN39 hr
Feb 4, 9:38 AM CSTRiver Flood WarningJAN22 days
Feb 9, 4:42 AM CSTFlash Flood WatchJAN47 hr
Feb 10, 1:02 AM CSTSevere Thunderstorm WarningJAN58 min
Feb 10, 1:37 AM CSTSevere Thunderstorm WarningJAN53 min
Feb 10, 9:43 AM CSTFlash Flood WarningJAN8 hr
Feb 10, 11:29 AM CSTFlash Flood WarningJAN3 hr
Feb 11, 3:34 AM CSTFlash Flood WatchJAN49 hr
Feb 14, 11:08 AM CSTRiver Flood WarningJAN3 days
Feb 18, 2:34 PM CSTFlash Flood WarningJAN3 hr
Feb 20, 9:06 AM CSTRiver Flood WarningJAN25 hr
Feb 24, 12:20 PM CSTMesoscale DiscussionSPC115 min
Mar 3, 2:52 AM CSTMesoscale DiscussionSPC2 hr
Mar 5, 10:50 AM CSTRiver Flood WarningJAN46 hr
Mar 11, 9:54 AM CDTMesoscale DiscussionSPC2 hr
Mar 15, 10:45 AM CDTRiver Flood WarningJAN21 days
Mar 22, 11:24 PM CDTMesoscale DiscussionSPC2 hr
Mar 24, 7:55 PM CDTMesoscale DiscussionSPC2 hr
Mar 24, 10:29 PM CDTSpecial Weather StatementJAN46 min
Mar 28, 6:34 PM CDTTornado WatchSPC7 hr
Mar 28, 10:08 PM CDTSevere Thunderstorm WarningJAN31 min
Apr 7, 9:31 AM CDTSpecial Weather StatementJAN59 min
Apr 7, 10:17 AM CDTSpecial Weather StatementJAN58 min
Apr 7, 9:59 PM CDTRiver Flood WarningJAN4 days
Apr 8, 12:13 PM CDTMesoscale DiscussionSPC2 hr
Apr 11, 11:48 AM CDTRiver Flood WarningJAN4 days
Apr 11, 3:44 PM CDTWind AdvisoryJAN30 hr
Apr 12, 10:24 AM CDTMesoscale DiscussionSPC96 min
Apr 12, 10:41 AM CDTTornado Watch PDSSPC10 hr
Apr 12, 5:44 PM CDTMesoscale DiscussionSPC91 min
Apr 12, 5:58 PM CDTSevere Thunderstorm WarningJAN47 min
Apr 12, 7:56 PM CDTMesoscale DiscussionSPC2 hr
Apr 12, 9:36 PM CDTSevere Thunderstorm WarningJAN54 min
Apr 12, 9:44 PM CDTMesoscale DiscussionSPC91 min
Apr 17, 10:50 PM CDTSpecial Weather StatementJAN25 min
Apr 19, 2:34 AM CDTMesoscale DiscussionSPC116 min
Apr 19, 9:44 AM CDTRiver Flood WarningJAN7 days
Apr 21, 2:16 PM CDTFlash Flood WatchJAN44 hr
Apr 22, 8:58 PM CDTWind AdvisoryJAN8 hr
Apr 22, 11:49 PM CDTSevere Thunderstorm WarningJAN22 min
Apr 28, 11:57 PM CDTMesoscale DiscussionSPC63 min
Apr 29, 12:48 AM CDTSevere Thunderstorm WatchSPC4 hr
Apr 29, 4:59 AM CDTSpecial Weather StatementJAN61 min
May 7, 3:58 PM CDTWind AdvisoryJAN27 hr
May 8, 9:03 AM CDTSpecial Weather StatementJAN87 min
May 17, 12:54 PM CDTMesoscale DiscussionSPC2 hr
May 26, 5:49 PM CDTSpecial Weather StatementJAN56 min
May 28, 12:18 PM CDTMesoscale DiscussionSPC87 min
May 28, 12:49 PM CDTSpecial Weather StatementJAN26 min
Jun 3, 6:23 PM CDTSevere Thunderstorm WarningJAN67 min
Jun 5, 2:07 PM CDTMesoscale DiscussionSPC83 min
Jun 5, 2:49 PM CDTSevere Thunderstorm WatchSPC6 hr
Jun 5, 3:23 PM CDTSevere Thunderstorm WarningJAN67 min
Jun 5, 4:21 PM CDTSevere Thunderstorm WarningJAN69 min
Jun 6, 4:24 PM CDTFlash Flood WatchJAN57 hr
Jun 7, 11:26 AM CDTWind AdvisoryJAN22 hr
Jun 8, 9:28 AM CDTRiver Flood WarningJAN50 hr
Jun 21, 3:24 PM CDTSevere Thunderstorm WarningJAN37 min
Jun 23, 12:01 PM CDTMesoscale DiscussionSPC2 hr
Jul 8, 8:21 AM CDTSpecial Weather StatementJAN54 min
Jul 9, 3:41 PM CDTMesoscale DiscussionSPC94 min
Jul 10, 2:38 AM CDTHeat AdvisoryJAN16 hr
Jul 10, 3:19 PM CDTHeat AdvisoryJAN28 hr
Jul 11, 2:32 PM CDTHeat AdvisoryJAN28 hr
Jul 13, 2:58 PM CDTHeat AdvisoryJAN28 hr
Jul 14, 2:22 PM CDTHeat AdvisoryJAN29 hr
Jul 15, 7:16 PM CDTHeat AdvisoryJAN24 hr
Jul 27, 2:46 PM CDTSpecial Weather StatementJAN44 min
Jul 31, 12:35 PM CDTMesoscale DiscussionSPC85 min
Jul 31, 1:21 PM CDTSevere Thunderstorm WatchSPC7 hr
Jul 31, 2:47 PM CDTSevere Thunderstorm WarningJAN58 min
Jul 31, 3:42 PM CDTSevere Thunderstorm WarningJAN63 min
Aug 10, 3:51 AM CDTHeat AdvisoryJAN14 hr
Aug 11, 4:15 AM CDTHeat AdvisoryJAN14 hr
Aug 26, 5:44 PM CDTSpecial Weather StatementJAN31 min
Aug 26, 6:13 PM CDTSpecial Weather StatementJAN47 min
Aug 27, 4:59 AM CDTWind AdvisoryJAN26 hr
Aug 27, 6:36 AM CDTMesoscale DiscussionSPC114 min
Aug 27, 7:47 AM CDTTornado WatchSPC8 hr
Aug 27, 2:41 PM CDTMesoscale DiscussionSPC94 min
Aug 27, 3:47 PM CDTTornado WatchSPC8 hr
Aug 28, 3:16 PM CDTHeat AdvisoryJAN28 hr
Aug 29, 3:32 PM CDTMesoscale DiscussionSPC88 min
Aug 30, 12:55 PM CDTSpecial Weather StatementJAN50 min
Aug 30, 1:39 PM CDTMesoscale DiscussionSPC3 hr
Aug 31, 12:16 PM CDTMesoscale DiscussionSPC89 min
Sep 1, 2:49 AM CDTHeat AdvisoryJAN16 hr
Sep 1, 5:47 PM CDTMesoscale DiscussionSPC88 min
Sep 23, 3:56 AM CDTFlash Flood WatchJAN30 hr
Sep 27, 4:02 AM CDTDense Fog AdvisoryJAN6 hr
Oct 7, 4:01 PM CDTFlash Flood WatchJAN63 hr
Oct 9, 4:20 AM CDTWind AdvisoryJAN33 hr
Nov 30, 2:07 PM CSTFreeze WarningJAN19 hr
Dec 20, 7:57 PM CSTDense Fog AdvisoryJAN13 hr
Dec 23, 9:03 PM CSTSpecial Weather StatementJAN57 min

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.