Alert archive / Tennessee / Macon County

Weather alerts in Macon County, Tennessee, 2019

101 weather alerts in 2019, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Macon County and its neighbors

Each county as a circle sized by its count in 2019. Tap one for its archive.

Alerts
101
Warnings
17
Watches
12
Advisories
36
Busiest month
June27 alerts
Busiest day
December 16, 20196 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 Macon County in 2019 had a tornado report inside them; 0 of 1 tornado reports fell inside a warning.

Macon County, 2019

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings10100%10%
Severe thunderstorm warnings10640%475%11 min
Flash flood warnings4325%3100%41 min

Each office's whole area, 2019

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Nashville, TN: tornado warnings170100%70%
NWS Nashville, TN: severe thunderstorm warnings1378339%31171%20 min
NWS Nashville, TN: flash flood warnings634529%17879%92 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 21, 2:47 PM CSTWind AdvisoryOHX48 hr
Jan 27, 2:06 PM CSTWinter Weather AdvisoryOHX37 hr
Feb 6, 9:11 PM CSTAreal Flood AdvisoryOHX4 hr
Feb 6, 9:31 PM CSTAreal Flood AdvisoryOHX12 hr
Feb 7, 9:49 AM CSTWind AdvisoryOHX9 hr
Feb 7, 9:59 AM CSTFlash Flood WatchOHX11 hr
Feb 9, 2:32 PM CSTFlood WatchOHX69 hr
Feb 12, 12:23 PM CSTSpecial Weather StatementOHX67 min
Feb 18, 1:51 PM CSTFlash Flood WatchOHX52 hr
Feb 20, 6:23 AM CSTAreal Flood AdvisoryOHX5 hr
Feb 21, 1:48 AM CSTFlash Flood WatchOHX70 hr
Feb 23, 12:01 PM CSTAreal Flood AdvisoryOHX3 hr
Feb 23, 5:54 PM CSTFlash Flood WarningOHX4 hr
Mar 8, 2:02 PM CSTWind AdvisoryOHX31 hr
Mar 9, 6:12 PM CSTSpecial Weather StatementOHX63 min
Mar 9, 7:04 PM CSTSevere Thunderstorm WarningOHX26 min
Mar 9, 7:20 PM CSTMesoscale DiscussionSPC85 min
Mar 13, 3:17 PM CDTWind AdvisoryOHX28 hr
Mar 30, 3:54 AM CDTFreeze WatchOHX23 hr
Mar 30, 6:46 PM CDTSevere Thunderstorm WarningOHX44 min
Mar 30, 7:19 PM CDTSevere Thunderstorm WarningOHX41 min
Mar 30, 7:33 PM CDTMesoscale DiscussionSPC87 min
Mar 31, 2:36 AM CDTFreeze WarningOHX30 hr
Apr 9, 5:38 AM CDTDense Fog AdvisoryOHX4 hr
Apr 10, 2:32 PM CDTWind AdvisoryOHX30 hr
Apr 14, 2:22 AM CDTWind AdvisoryOHX17 hr
Apr 21, 2:05 AM CDTDense Fog AdvisoryOHX7 hr
Apr 21, 9:01 AM CDTDense Fog AdvisoryOHX53 min
May 2, 12:22 PM CDTMesoscale DiscussionSPC113 min
May 2, 1:26 PM CDTSevere Thunderstorm WarningOHX34 min
May 2, 1:36 PM CDTSpecial Weather StatementOHX39 min
May 2, 4:33 PM CDTSpecial Weather StatementOHX27 min
May 26, 5:28 PM CDTMesoscale DiscussionSPC2 hr
Jun 5, 6:29 AM CDTSpecial Weather StatementOHX31 min
Jun 5, 6:48 AM CDTSpecial Weather StatementOHX42 min
Jun 7, 8:06 AM CDTAreal Flood AdvisoryOHX6 hr
Jun 9, 8:28 PM CDTAreal Flood AdvisoryOHX2 hr
Jun 17, 5:25 PM CDTSpecial Weather StatementOHX35 min
Jun 17, 5:57 PM CDTSpecial Weather StatementOHX33 min
Jun 17, 6:12 PM CDTSevere Thunderstorm WarningOHX33 min
Jun 17, 6:43 PM CDTSevere Thunderstorm WarningOHX32 min
Jun 18, 7:17 AM CDTAreal Flood AdvisoryOHX4 hr
Jun 19, 12:35 PM CDTMesoscale DiscussionSPC115 min
Jun 19, 4:28 PM CDTMesoscale DiscussionSPC2 hr
Jun 19, 5:31 PM CDTSevere Thunderstorm WatchSPC7 hr
Jun 19, 7:45 PM CDTMesoscale DiscussionSPC2 hr
Jun 20, 2:19 PM CDTSpecial Weather StatementOHX41 min
Jun 20, 2:43 PM CDTSevere Thunderstorm WarningOHX32 min
Jun 21, 2:46 PM CDTMesoscale DiscussionSPC89 min
Jun 21, 5:14 PM CDTMesoscale DiscussionSPC91 min
Jun 21, 5:47 PM CDTSevere Thunderstorm WatchSPC6 hr
Jun 21, 7:29 PM CDTSevere Thunderstorm WarningOHX46 min
Jun 21, 7:58 PM CDTMesoscale DiscussionSPC92 min
Jun 21, 8:01 PM CDTSevere Thunderstorm WarningOHX44 min
Jun 21, 8:09 PM CDTTornado WarningOHX14 min
Jun 22, 9:01 AM CDTSpecial Weather StatementOHX29 min
Jun 23, 3:14 PM CDTSpecial Weather StatementOHX31 min
Jun 23, 5:36 PM CDTSevere Thunderstorm WatchSPC3 hr
Jun 26, 11:06 PM CDTSpecial Weather StatementOHX39 min
Jun 27, 5:54 PM CDTSpecial Weather StatementOHX51 min
Jul 3, 4:04 PM CDTSpecial Weather StatementOHX41 min
Jul 13, 8:58 PM CDTFlash Flood WarningOHX3 hr
Jul 13, 10:13 PM CDTAreal Flood AdvisoryOHX2 hr
Jul 18, 4:08 AM CDTHeat AdvisoryOHX10 hr
Jul 18, 2:29 PM CDTHeat AdvisoryOHX29 hr
Jul 20, 7:20 PM CDTSpecial Weather StatementOHX40 min
Jul 22, 3:19 AM CDTFlash Flood WatchOHX17 hr
Jul 22, 4:53 PM CDTAreal Flood AdvisoryOHX3 hr
Aug 5, 12:31 AM CDTDense Fog AdvisoryOHX8 hr
Aug 6, 7:56 PM CDTSpecial Weather StatementOHX64 min
Aug 6, 8:19 PM CDTMesoscale DiscussionSPC86 min
Aug 8, 3:33 AM CDTDense Fog AdvisoryOHX5 hr
Aug 12, 2:05 PM CDTHeat AdvisoryOHX29 hr
Aug 13, 1:58 PM CDTMesoscale DiscussionSPC2 hr
Aug 13, 2:49 PM CDTSevere Thunderstorm WatchSPC6 hr
Aug 13, 2:53 PM CDTSpecial Weather StatementOHX37 min
Aug 13, 3:06 PM CDTSevere Thunderstorm WarningOHX39 min
Aug 13, 5:09 PM CDTMesoscale DiscussionSPC66 min
Aug 20, 5:06 PM CDTMesoscale DiscussionSPC114 min
Aug 20, 6:05 PM CDTSpecial Weather StatementOHX40 min
Aug 23, 1:13 AM CDTDense Fog AdvisoryOHX6 hr
Sep 27, 12:49 AM CDTDense Fog AdvisoryOHX8 hr
Oct 17, 2:16 PM CDTFrost AdvisoryOHX18 hr
Oct 21, 2:23 PM CDTSpecial Weather StatementOHX52 min
Oct 26, 3:18 AM CDTWind AdvisoryOHX15 hr
Oct 28, 2:04 AM CDTDense Fog AdvisoryOHX7 hr
Oct 28, 9:06 AM CDTDense Fog AdvisoryOHX114 min
Oct 28, 9:44 PM CDTDense Fog AdvisoryOHX11 hr
Oct 30, 2:02 PM CDTFreeze WatchOHX13 hr
Oct 31, 2:37 AM CDTFreeze WarningOHX30 hr
Nov 26, 12:26 PM CSTWind AdvisoryOHX24 hr
Nov 30, 5:09 PM CSTSpecial Weather StatementOHX51 min
Dec 16, 12:57 AM CSTSpecial Weather StatementOHX48 min
Dec 16, 1:46 AM CSTSpecial Weather StatementOHX44 min
Dec 16, 1:50 AM CSTAreal Flood AdvisoryOHX6 hr
Dec 16, 7:39 AM CSTFlash Flood WatchOHX12 hr
Dec 16, 2:23 PM CSTAreal Flood AdvisoryOHX3 hr
Dec 16, 3:44 PM CSTFlash Flood WarningOHX3 hr
Dec 28, 12:24 AM CSTDense Fog AdvisoryOHX4 hr
Dec 29, 6:16 PM CSTAreal Flood AdvisoryOHX3 hr
Dec 29, 7:04 PM CSTFlash Flood WarningOHX3 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 archive20182020

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.