Alert archive / North Carolina / Person County

Weather alerts in Person County, North Carolina, 2021

95 weather alerts in 2021, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Person County and its neighbors

Each county as a circle sized by its count in 2021. Tap one for its archive.

Alerts
95
Warnings
19
Watches
12
Advisories
16
Busiest month
March17 alerts
Busiest day
March 27, 20215 alerts

Over time

By month

Warning verification

How often warnings here had a storm report inside them, and how much warning the reports had.

1 of 2 tornado warnings covering Person County in 2021 had a tornado report inside them.

Person County, 2021

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings2150%0
Severe thunderstorm warnings5420%6100%18 min
Flash flood warnings20100%0

Each office's whole area, 2021

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Raleigh, NC: tornado warnings22482%4100%5 min
NWS Raleigh, NC: severe thunderstorm warnings1388439%23781%19 min
NWS Raleigh, NC: flash flood warnings271448%3667%100 min

An office's figures cover every county it serves, including across state lines.

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.

The alerts

Every alert, in the order issued. Times are local, Eastern Time. Each opens its own page with the text, the map, the radar and the sounding.

IssuedProductOfficeLasted
Jan 1, 7:45 PM ESTSpecial Weather StatementRAH60 min
Jan 2, 8:15 AM ESTDense Fog AdvisoryRAH3 hr
Jan 7, 3:36 PM ESTWinter Weather AdvisoryRAH30 hr
Jan 16, 1:27 AM ESTDense Fog AdvisoryRAH8 hr
Jan 27, 3:18 AM ESTWinter Weather AdvisoryRAH29 hr
Jan 28, 3:22 AM ESTWinter Storm WarningRAH5 hr
Jan 30, 4:10 AM ESTWinter Weather AdvisoryRAH34 hr
Feb 11, 3:54 PM ESTWinter Weather AdvisoryRAH68 hr
Feb 12, 3:39 PM ESTWinter Storm WarningRAH24 hr
Feb 13, 2:21 AM ESTMesoscale DiscussionSPC6 hr
Feb 16, 3:57 AM ESTWinter Storm WatchRAH23 hr
Feb 17, 3:13 AM ESTWinter Storm WarningRAH52 hr
Feb 18, 4:28 AM ESTMesoscale DiscussionSPC6 hr
Feb 18, 10:23 AM ESTMesoscale DiscussionSPC3 hr
Mar 18, 4:45 PM EDTTornado WatchSPC4 hr
Mar 18, 5:57 PM EDTMesoscale DiscussionSPC63 min
Mar 18, 5:58 PM EDTTornado WarningRAH62 min
Mar 18, 7:49 PM EDTMesoscale DiscussionSPC56 min
Mar 25, 8:24 PM EDTSpecial Weather StatementRAH36 min
Mar 27, 6:39 AM EDTDense Fog AdvisoryRAH3 hr
Mar 27, 1:39 PM EDTMesoscale DiscussionSPC66 min
Mar 27, 2:03 PM EDTSevere Thunderstorm WatchSPC6 hr
Mar 27, 3:51 PM EDTSpecial Weather StatementRAH54 min
Mar 27, 4:49 PM EDTMesoscale DiscussionSPC56 min
Mar 28, 3:24 AM EDTSpecial Weather StatementRAH66 min
Mar 28, 12:38 PM EDTMesoscale DiscussionSPC3 hr
Mar 28, 7:50 PM EDTSpecial Weather StatementRAH40 min
Mar 29, 3:26 AM EDTFrost AdvisoryRAH29 hr
Mar 31, 2:22 PM EDTMesoscale DiscussionSPC113 min
Mar 31, 2:34 PM EDTFreeze WatchRAH13 hr
Mar 31, 3:19 PM EDTSpecial Weather StatementRAH56 min
Apr 1, 3:49 AM EDTFreeze WarningRAH29 hr
Apr 2, 9:02 AM EDTHard Freeze WarningRAH24 hr
Apr 3, 9:43 AM EDTFrost AdvisoryRAH23 hr
Apr 9, 3:38 PM EDTSevere Thunderstorm WatchSPC7 hr
Apr 9, 4:10 PM EDTSevere Thunderstorm WarningRAH50 min
Apr 9, 5:42 PM EDTTornado WarningRAH35 min
Apr 9, 6:23 PM EDTMesoscale DiscussionSPC97 min
Apr 9, 6:55 PM EDTSpecial Weather StatementRAH65 min
Apr 9, 8:05 PM EDTSpecial Weather StatementRAH55 min
Apr 11, 12:40 AM EDTSpecial Weather StatementRAH65 min
Apr 14, 4:24 PM EDTMesoscale DiscussionSPC2 hr
Apr 20, 3:16 PM EDTFire Weather WatchRAH12 hr
Apr 21, 3:22 AM EDTRed Flag WarningRAH17 hr
Apr 21, 10:58 AM EDTFreeze WarningRAH21 hr
Apr 22, 10:45 AM EDTFreeze WarningRAH22 hr
Apr 29, 2:26 PM EDTFire Weather WatchRAH13 hr
Apr 30, 3:25 AM EDTRed Flag WarningRAH16 hr
May 4, 1:04 PM EDTMesoscale DiscussionSPC56 min
May 4, 3:46 PM EDTSevere Thunderstorm WarningRAH44 min
May 4, 4:16 PM EDTMesoscale DiscussionSPC119 min
May 4, 4:20 PM EDTSpecial Weather StatementRAH55 min
May 10, 12:51 PM EDTMesoscale DiscussionSPC114 min
May 24, 1:57 PM EDTMesoscale DiscussionSPC2 hr
May 28, 6:23 PM EDTSpecial Weather StatementRAH52 min
May 29, 2:06 PM EDTSpecial Weather StatementRAH54 min
Jun 3, 4:27 PM EDTFlash Flood Warning Considerable damage threatRAH112 min
Jun 9, 1:44 PM EDTMesoscale DiscussionSPC2 hr
Jun 9, 8:37 PM EDTAreal Flood AdvisoryRAH3 hr
Jun 10, 3:39 PM EDTFlash Flood WatchRAH32 hr
Jun 10, 5:20 PM EDTSpecial Weather StatementRAH55 min
Jun 22, 12:22 PM EDTSpecial Weather StatementRAH38 min
Jul 7, 3:01 PM EDTFlash Flood WatchRAH27 hr
Jul 8, 3:31 PM EDTFlash Flood Warning Considerable damage threatRAH2 hr
Jul 9, 1:51 PM EDTSpecial Weather StatementRAH54 min
Jul 9, 3:41 PM EDTSpecial Weather StatementRNK34 min
Jul 11, 4:11 PM EDTSpecial Weather StatementRAH64 min
Jul 14, 2:49 PM EDTSpecial Weather StatementRAH56 min
Jul 17, 1:15 PM EDTMesoscale DiscussionSPC3 hr
Jul 17, 5:44 PM EDTSevere Thunderstorm WarningRAH44 min
Jul 17, 9:55 PM EDTSpecial Weather StatementRAH65 min
Jul 17, 9:59 PM EDTSevere Thunderstorm WarningRAH46 min
Jul 18, 11:19 PM EDTAreal Flood AdvisoryRAH3 hr
Jul 26, 12:58 PM EDTMesoscale DiscussionSPC2 hr
Jul 26, 1:39 PM EDTSevere Thunderstorm WatchSPC6 hr
Jul 26, 3:29 PM EDTMesoscale DiscussionSPC2 hr
Aug 1, 6:29 AM EDTMesoscale DiscussionSPC91 min
Aug 1, 7:13 AM EDTSpecial Weather StatementRAH47 min
Aug 8, 2:02 AM EDTDense Fog AdvisoryRAH7 hr
Aug 14, 1:10 PM EDTMesoscale DiscussionSPC2 hr
Aug 16, 6:37 PM EDTSpecial Weather StatementRAH53 min
Aug 16, 9:05 PM EDTAreal Flood AdvisoryRAH51 min
Aug 20, 12:11 AM EDTAreal Flood AdvisoryRAH109 min
Sep 8, 11:07 AM EDTSpecial Weather StatementRNK38 min
Sep 22, 12:12 PM EDTAreal Flood AdvisoryRAH2 hr
Sep 22, 2:44 PM EDTMesoscale DiscussionSPC3 hr
Oct 25, 3:01 PM EDTMesoscale DiscussionSPC119 min
Oct 25, 6:26 PM EDTSevere Thunderstorm WatchSPC4 hr
Oct 25, 8:12 PM EDTSpecial Weather StatementRAH63 min
Oct 25, 8:13 PM EDTMesoscale DiscussionSPC92 min
Oct 25, 8:37 PM EDTSevere Thunderstorm WarningRAH38 min
Nov 3, 2:19 PM EDTFreeze WatchRAH13 hr
Nov 4, 3:13 AM EDTFreeze WarningRAH30 hr
Dec 11, 6:15 PM ESTSpecial Weather StatementRAH45 min
Dec 18, 3:28 AM ESTDense Fog AdvisoryRAH6 hr

By product

Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force nowTornadoes on recordForecastThe radar archive20202022

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.