Alert archive / North Carolina

Weather alerts in Cabarrus County, North Carolina

3,586 weather alerts since 1986, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Cabarrus County and its neighbors

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

Alerts
3,586
Warnings
929
Watches
431
Advisories
883
Busiest year
2011210 alerts
Average year
87over 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, 75% of tornado reports in Cabarrus County fell inside a tornado warning issued on average 27 minutes before, and 79% of the tornado warnings had no report inside them.

Tornado warnings by year

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
20085180%10%
200910100%0
20103167%0
20113167%0
201420100%0
201610100%0
201720100%0
201910100%0
20208450%3100%27 min
202140100%0
202210100%0
202340100%0
20243167%0

Severe thunderstorm warnings by year

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
2008271448%1947%31 min
2009231535%1292%32 min
2010262215%1267%27 min
2011413222%2186%31 min
2012321747%580%22 min
2013221341%1979%35 min
2014232013%1694%20 min
2015242017%3591%26 min
2016282221%1979%25 min
2017282414%1191%29 min
2018201810%1283%24 min
2019211719%1580%26 min
2020221723%8100%26 min
20218538%1267%14 min
2022211529%1464%18 min
2023322813%2295%20 min
2024201715%1486%36 min
2025131023%967%24 min

Flash flood warnings by year

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
20087614%5100%31 min
20098625%667%95 min
20107529%5100%125 min
20113167%0
20122150%10%
20137529%3100%70 min
2014110%0
20156433%10100%183 min
20162150%0
2017330%0
20184250%475%325 min
20192150%5100%68 min
2020330%1100%58 min
202110100%0
2022110%1100%17 min
2023220%3100%159 min
20244325%6100%222 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 18, 3:29 PM EDTSevere Thunderstorm WarningGSP46 min
Aug 28, 4:48 PM EDTSevere Thunderstorm WarningGSP57 min
Aug 28, 4:22 PM EDTSevere Thunderstorm WarningGSP53 min
Aug 21, 4:04 PM EDTSevere Thunderstorm WarningGSP56 min
Aug 21, 12:37 AM EDTSevere Thunderstorm WarningGSP38 min
Aug 11, 6:49 PM EDTSevere Thunderstorm WarningGSP56 min
Aug 11, 6:33 PM EDTFlash Flood WarningGSP3 hr
Aug 11, 5:58 PM EDTSevere Thunderstorm WarningGSP47 min
Aug 11, 5:46 PM EDTSevere Thunderstorm WarningGSP44 min
Aug 11, 5:25 PM EDTSevere Thunderstorm WarningGSP35 min
Aug 9, 8:35 PM EDTSevere Thunderstorm WarningGSP40 min
Jul 28, 7:24 PM EDTSevere Thunderstorm WarningGSP51 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.