Alert archive / North Carolina

Weather alerts in Gaston County, North Carolina

3,340 weather alerts since 1986, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Gaston County and its neighbors

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

Alerts
3,340
Warnings
962
Watches
417
Advisories
760
Busiest year
2011235 alerts
Average year
81over 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, 63% of tornado reports in Gaston County fell inside a tornado warning issued on average 12 minutes before, and 64% of the tornado warnings had no report inside them.

Tornado warnings by year

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
20084175%0
2009220%0
20109278%1100%22 min
20115180%0
201830100%0
201930100%10%
20209456%3100%13 min
2021110%0
20223167%0
2023110%1100%0 min
20243233%20%
2025110%0
Share of tornado reports inside a tornado warning, by year.

Severe thunderstorm warnings by year

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
2008271833%1681%32 min
2009271930%6100%30 min
2010241538%1464%24 min
2011645416%4781%25 min
2012302323%1479%23 min
2013241921%8100%34 min
2014241921%1984%24 min
201515147%1675%28 min
2016191521%1567%23 min
201729277%1974%15 min
2018292321%2387%19 min
2019191521%1070%17 min
2020322425%2060%19 min
20215340%520%9 min
2022382145%1688%15 min
2023312713%1788%23 min
2024201525%2488%24 min
202516156%11100%23 min

Flash flood warnings by year

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
2008110%1100%100 min
20093167%10%
20102150%1100%80 min
2011110%3100%37 min
20133233%0
20144175%0
2015220%450%201 min
2018110%250%16 min
20208538%0
20222150%10%
20245420%7100%94 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
Aug 28, 4:26 PM EDTSevere Thunderstorm WarningGSP64 min
Aug 28, 3:55 PM EDTSevere Thunderstorm WarningGSP45 min
Aug 20, 11:56 PM EDTSevere Thunderstorm WarningGSP34 min
Aug 17, 8:11 PM EDTSevere Thunderstorm WarningGSP46 min
Aug 14, 3:31 PM EDTSevere Thunderstorm WarningGSP44 min
Aug 11, 6:49 PM EDTSevere Thunderstorm WarningGSP56 min
Aug 11, 6:29 PM EDTSevere Thunderstorm WarningGSP76 min
Aug 11, 6:21 PM EDTSevere Thunderstorm WarningGSP39 min
Aug 11, 5:01 PM EDTSevere Thunderstorm WarningGSP44 min
Aug 6, 4:53 PM EDTSevere Thunderstorm WarningGSP67 min
Aug 1, 5:26 PM EDTSevere Thunderstorm WarningGSP31 min
Jul 28, 7:56 PM EDTSevere Thunderstorm WarningGSP49 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.