Alert archive / North Carolina

Weather alerts in Macon County, North Carolina

2,615 weather alerts since 1986, 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 since 1986. Tap one for its archive.

Alerts
2,615
Warnings
559
Watches
435
Advisories
821
Busiest year
2011204 alerts
Average year
67over 39 years on file

Over time

By year

Before late 2005 the archive holds only tornado, severe thunderstorm, flash flood and marine warnings, and from 1997 SPC's watches, so the jump that year is the archive widening, not the weather.

By month of the year

Warning verification

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

From 2008 to 2025, 100% of tornado reports in Macon County fell inside a tornado warning issued on average 26 minutes before, and 82% of the tornado warnings had no report inside them.

Tornado warnings by year

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
201010100%0
20115260%1100%26 min
201230100%0
202010100%0
202110100%0

Severe thunderstorm warnings by year

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
20087443%3100%51 min
2009131023%4100%51 min
2010121017%683%20 min
2011353014%1989%26 min
2012231535%1553%33 min
20137529%771%32 min
201412650%333%10 min
2015550%3100%7 min
2016440%1100%11 min
20174325%1100%12 min
2018121017%4100%27 min
20196433%2100%23 min
20207529%10%
202110100%0
202213562%2100%12 min
2023231822%1883%17 min
2024141029%7100%18 min
202510550%1100%37 min

Flash flood warnings by year

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
200810100%0
2009330%1100%32 min
20103233%367%95 min
2011220%1100%82 min
2012110%1100%110 min
2013010%
20152150%30%
201710100%0
201820100%10%
2019220%0
20204250%3100%127 min
202130100%0
20223167%0
20243167%0

Years from 2008, the first full year of storm-based warnings. The year still running is on its own page.

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.

By product

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

The latest warnings

The most recent on file, newest first.

IssuedProductOfficeLasted
Aug 17, 7:40 PM EDTSevere Thunderstorm WarningGSP50 min
Aug 17, 7:22 PM EDTSevere Thunderstorm WarningGSP23 min
Aug 17, 6:37 PM EDTSevere Thunderstorm WarningGSP53 min
Aug 11, 11:21 PM EDTSevere Thunderstorm WarningGSP24 min
Jul 28, 8:00 PM EDTTornado WarningGSP23 min
Jul 28, 7:52 PM EDTSevere Thunderstorm WarningGSP53 min
Jul 28, 7:48 PM EDTSevere Thunderstorm WarningGSP57 min
Jul 28, 6:54 PM EDTSevere Thunderstorm WarningGSP51 min
Jul 5, 5:31 PM EDTSevere Thunderstorm WarningGSP37 min
Jul 3, 3:34 PM EDTSevere Thunderstorm WarningGSP56 min
Jul 1, 3:05 PM EDTSevere Thunderstorm WarningGSP27 min
Jul 1, 2:22 PM EDTSevere Thunderstorm WarningGSP53 min

Nearby

Alerts in force nowTornadoes on recordForecastThe radar archive

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.