Alert archive / North Carolina

Weather alerts in Buncombe County, North Carolina

3,274 weather alerts since 1986, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Buncombe County and its neighbors

Each county as a circle sized by its count since 1986. Tap one for its archive.

Alerts
3,274
Warnings
924
Watches
414
Advisories
1,001
Busiest year
2011241 alerts
Average year
80over 41 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 Buncombe County fell inside a tornado warning issued on average 0 minutes before, and 80% of the tornado warnings had no report inside them.

Tornado warnings by year

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
200940100%0
201010100%0
201130100%0
2013110%0
2024110%1100%0 min

Severe thunderstorm warnings by year

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
200817853%2100%20 min
2009341750%1573%24 min
2010272026%1191%24 min
2011564520%3187%24 min
2012463230%3692%22 min
2013251540%5100%24 min
2014201430%1587%21 min
2015151127%6100%11 min
2016161413%1872%20 min
2017141029%1060%32 min
2018211719%989%24 min
201911736%333%36 min
202014750%1100%23 min
20217271%333%8 min
202220860%1164%13 min
2023322813%1974%17 min
2024231822%1788%23 min
2025181328%2588%13 min

Flash flood warnings by year

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
2009110%0
2010110%0
2013440%1553%53 min
2014020%
20155260%771%46 min
2016110%2100%66 min
2018880%9100%103 min
2019110%1100%10 min
2020010%
20214325%250%178 min
20222150%0
20249633%4100%69 min

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
Sep 22, 11:52 PM EDTFlash Flood WarningGSP5 hr
Sep 6, 3:20 PM EDTSevere Thunderstorm WarningGSP52 min
Sep 6, 1:27 PM EDTSevere Thunderstorm WarningGSP33 min
Sep 5, 1:38 PM EDTSevere Thunderstorm WarningGSP37 min
Sep 5, 1:26 PM EDTSevere Thunderstorm WarningGSP34 min
Sep 5, 12:42 PM EDTSevere Thunderstorm WarningGSP48 min
Aug 17, 7:40 PM EDTSevere Thunderstorm WarningGSP50 min
Aug 17, 7:33 PM EDTSevere Thunderstorm WarningGSP42 min
Aug 17, 6:46 PM EDTSevere Thunderstorm WarningGSP59 min
Aug 17, 5:56 PM EDTSevere Thunderstorm WarningGSP64 min
Jul 28, 6:50 PM EDTSevere Thunderstorm WarningGSP55 min
Jul 28, 6:22 PM EDTTornado WarningGSP38 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.