Alert archive / North Carolina

Weather alerts in Martin County, North Carolina

2,982 weather alerts since 1986, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Martin County and its neighbors

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

Alerts
2,982
Warnings
591
Watches
497
Advisories
506
Busiest year
2011189 alerts
Average year
73over 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, 50% of tornado reports in Martin County fell inside a tornado warning issued on average 22 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
20084175%20%
200950100%0
201030100%0
20116350%2100%27 min
20147357%1100%20 min
2015010%
201610100%0
201760100%0
201920100%0
20203233%1100%15 min
202110100%0
202210100%0
202310100%0
202470100%0
202530100%10%
Share of tornado reports inside a tornado warning, by year.

Severe thunderstorm warnings by year

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
200818383%540%31 min
200918761%580%22 min
20108450%0
2011141029%1369%30 min
201210550%580%42 min
20136517%3100%26 min
201411645%5100%20 min
20156433%3100%18 min
20165340%20%
20176183%10%
20183233%1100%7 min
2019231630%2095%20 min
20207443%475%35 min
20214250%30%
2022231726%1464%15 min
2023231726%1292%31 min
202413746%2100%31 min
202516944%0

Flash flood warnings by year

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
2010110%0
201110100%0
20164250%0
2017220%3100%110 min
2019110%0
20202150%0
202210100%0
20246517%580%72 min
2025110%1100%0 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 4, 5:14 PM EDTSevere Thunderstorm WarningMHX46 min
Aug 24, 5:31 PM EDTSevere Thunderstorm WarningMHX44 min
Aug 16, 6:02 PM EDTSevere Thunderstorm WarningMHX43 min
Jul 28, 10:07 PM EDTSevere Thunderstorm WarningMHX53 min
Jul 20, 4:31 PM EDTSevere Thunderstorm WarningMHX44 min
Jul 20, 4:03 PM EDTSevere Thunderstorm WarningMHX42 min
Jul 19, 6:10 PM EDTSevere Thunderstorm WarningMHX44 min
Jul 10, 7:10 PM EDTSevere Thunderstorm WarningMHX65 min
Jul 6, 2:30 PM EDTSevere Thunderstorm WarningMHX28 min
Jun 27, 4:16 PM EDTSevere Thunderstorm WarningMHX59 min
Jun 23, 2:22 PM EDTSevere Thunderstorm WarningMHX38 min
Apr 5, 3:00 PM EDTSevere Thunderstorm WarningMHX45 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.