Alert archive / North Carolina

Weather alerts in Lenoir County, North Carolina

3,277 weather alerts since 1986, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Lenoir County and its neighbors

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

Alerts
3,277
Warnings
806
Watches
505
Advisories
558
Busiest year
2011199 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, 75% of tornado reports in Lenoir County fell inside a tornado warning issued on average 18 minutes before, and 71% of the tornado warnings had no report inside them.

Tornado warnings by year

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
200850100%10%
20097357%1100%35 min
201010100%0
201111555%0
201210100%0
201410100%0
201510100%0
20162150%0
201710100%0
20186267%1100%9 min
20198363%1100%10 min
20248188%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
2008261254%786%21 min
200918761%1090%16 min
20109722%9100%17 min
201115147%1486%18 min
2012151127%1173%36 min
20138538%6100%36 min
2014191426%667%18 min
201510730%10%
2016131115%6100%18 min
20177443%250%30 min
20187614%475%10 min
2019151127%888%34 min
202014843%2100%42 min
202110550%6100%31 min
2022191426%978%16 min
2023231822%888%35 min
2024211433%4100%14 min
2025211719%7100%37 min

Flash flood warnings by year

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
201110100%0
20164325%3100%637 min
2017220%10%
20184175%0
20192150%0
2020330%250%210 min
2021110%0
2023220%3100%140 min
202410910%989%63 min
2025110%2100%66 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 11, 5:54 PM EDTSevere Thunderstorm WarningMHX51 min
Sep 5, 5:33 PM EDTSevere Thunderstorm WarningMHX57 min
Sep 5, 5:10 PM EDTSevere Thunderstorm WarningMHX50 min
Sep 5, 4:29 PM EDTSevere Thunderstorm WarningMHX46 min
Aug 21, 2:15 PM EDTSevere Thunderstorm WarningMHX30 min
Aug 21, 1:53 PM EDTSevere Thunderstorm WarningMHX52 min
Aug 11, 7:22 PM EDTSevere Thunderstorm WarningMHX41 min
Jul 12, 11:47 PM EDTFlash Flood WarningMHX2 hr
Jul 10, 7:25 PM EDTSevere Thunderstorm WarningMHX50 min
Jul 10, 7:10 PM EDTSevere Thunderstorm WarningMHX65 min
Jul 10, 6:49 PM EDTSevere Thunderstorm WarningMHX56 min
Jul 8, 6:25 PM EDTSevere Thunderstorm WarningMHX50 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.