Alert archive / North Carolina / Swain County

Weather alerts in Swain County, North Carolina, 2016

123 weather alerts in 2016, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Swain County and its neighbors

Each county as a circle sized by its count in 2016. Tap one for its archive.

Alerts
123
Warnings
22
Watches
15
Advisories
48
Busiest month
February24 alerts
Busiest day
February 3, 20166 alerts

Over time

By month

Warning verification

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

Swain County, 2016

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings00
Severe thunderstorm warnings6433%3100%28 min
Flash flood warnings110%580%88 min

Each office's whole area, 2016

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Greenville-Spartanburg, SC: tornado warnings8275%6100%41 min
NWS Greenville-Spartanburg, SC: severe thunderstorm warnings24818525%53680%18 min
NWS Greenville-Spartanburg, SC: flash flood warnings231917%7987%91 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 9, 10:41 PM ESTSpecial Weather StatementGSP64 min
Jan 12, 2:41 PM ESTWind AdvisoryGSP3 hr
Jan 16, 2:33 PM ESTWinter Weather AdvisoryGSP20 hr
Jan 17, 10:11 AM ESTWind Chill AdvisoryGSP26 hr
Jan 18, 12:04 PM ESTWind Chill AdvisoryGSP24 hr
Jan 19, 10:49 AM ESTWinter Weather AdvisoryGSP44 hr
Jan 20, 3:52 PM ESTWinter Storm WatchGSP13 hr
Jan 21, 4:34 AM ESTWinter Storm WarningGSP65 hr
Jan 23, 2:53 PM ESTWinter Weather AdvisoryGSP16 hr
Jan 26, 2:53 PM ESTFreezing Rain AdvisoryGSP12 hr
Feb 2, 9:33 PM ESTWind AdvisoryGSP12 hr
Feb 3, 4:58 AM ESTMesoscale DiscussionSPC92 min
Feb 3, 6:32 AM ESTSpecial Weather StatementGSP58 min
Feb 3, 6:34 AM ESTAreal Flood AdvisoryGSP3 hr
Feb 3, 9:27 AM ESTAreal Flood AdvisoryGSP3 hr
Feb 3, 12:57 PM ESTRiver Flood AdvisoryGSP12 hr
Feb 7, 3:50 PM ESTWinter Storm WatchGSP24 hr
Feb 7, 3:50 PM ESTWinter Weather AdvisoryGSP3 days
Feb 8, 4:17 AM ESTWinter Storm WarningGSP27 hr
Feb 8, 3:37 PM ESTWind Chill AdvisoryGSP44 hr
Feb 9, 2:52 PM ESTWind Chill AdvisoryGSP43 hr
Feb 12, 4:01 AM ESTWind Chill AdvisoryGSP48 hr
Feb 12, 4:01 AM ESTWinter Weather AdvisoryGSP26 hr
Feb 13, 3:22 PM ESTWinter Storm WatchGSP24 hr
Feb 14, 2:52 PM ESTWinter Weather AdvisoryGSP33 hr
Feb 15, 5:02 AM ESTMesoscale DiscussionSPC6 hr
Feb 16, 6:08 AM ESTWinter Weather AdvisoryGSP22 hr
Feb 22, 3:34 PM ESTHigh Wind WatchGSP23 hr
Feb 23, 3:21 AM ESTFlash Flood WatchGSP35 hr
Feb 23, 2:52 PM ESTHigh Wind WarningGSP28 hr
Feb 23, 2:52 PM ESTWind AdvisoryGSP33 hr
Feb 24, 3:57 AM ESTWinter Weather AdvisoryGSP51 hr
Feb 24, 8:14 AM ESTMesoscale DiscussionSPC2 hr
Feb 24, 12:10 PM ESTWind AdvisoryGSP12 hr
Mar 3, 3:28 AM ESTWinter Weather AdvisoryGSP24 hr
Mar 14, 12:38 PM EDTMesoscale DiscussionSPC97 min
Mar 19, 3:10 PM EDTFrost AdvisoryGSP18 hr
Mar 19, 3:10 PM EDTFreeze WatchGSP24 hr
Mar 20, 3:48 AM EDTFreeze WarningGSP30 hr
Mar 20, 2:12 PM EDTWinter Weather AdvisoryGSP20 hr
Mar 20, 2:49 PM EDTFreeze WatchGSP24 hr
Mar 21, 3:42 AM EDTFreeze WarningGSP29 hr
Mar 22, 2:49 PM EDTFrost AdvisoryGSP18 hr
Mar 28, 2:31 PM EDTFrost AdvisoryGSP18 hr
Apr 1, 3:15 PM EDTFreeze WatchGSP12 hr
Apr 1, 3:15 PM EDTWind AdvisoryGSP36 hr
Apr 2, 3:32 AM EDTFreeze WarningGSP30 hr
Apr 3, 3:03 PM EDTFreeze WatchGSP12 hr
Apr 4, 3:19 AM EDTFreeze WatchGSP24 hr
Apr 4, 3:19 AM EDTFreeze WarningGSP31 hr
Apr 5, 3:37 AM EDTFreeze WarningGSP29 hr
Apr 7, 10:30 AM EDTWind AdvisoryGSP9 hr
Apr 7, 3:59 PM EDTFreeze WatchGSP12 hr
Apr 7, 3:59 PM EDTFreeze WarningGSP18 hr
Apr 8, 3:59 AM EDTFreeze WarningGSP30 hr
Apr 8, 3:59 AM EDTHard Freeze WatchGSP24 hr
Apr 8, 3:59 AM EDTWind AdvisoryGSP38 hr
Apr 9, 3:50 AM EDTFreeze WarningGSP30 hr
May 2, 1:34 PM EDTMesoscale DiscussionSPC116 min
May 2, 3:45 PM EDTSpecial Weather StatementGSP30 min
May 4, 6:03 PM EDTSpecial Weather StatementGSP57 min
May 4, 8:51 PM EDTSpecial Weather StatementGSP39 min
May 21, 5:08 AM EDTSpecial Weather StatementMRX52 min
Jun 1, 1:22 PM EDTSpecial Weather StatementGSP23 min
Jun 4, 6:10 PM EDTSpecial Weather StatementGSP50 min
Jun 14, 5:48 PM EDTSpecial Weather StatementGSP27 min
Jun 14, 6:22 PM EDTSpecial Weather StatementGSP23 min
Jun 14, 8:01 PM EDTSpecial Weather StatementGSP29 min
Jun 17, 2:11 AM EDTSevere Thunderstorm WarningGSP49 min
Jun 24, 1:05 AM EDTSpecial Weather StatementGSP55 min
Jun 24, 2:07 AM EDTSpecial Weather StatementGSP53 min
Jun 26, 5:08 PM EDTSpecial Weather StatementGSP22 min
Jun 26, 5:44 PM EDTSevere Thunderstorm WarningGSP23 min
Jun 26, 5:53 PM EDTAreal Flood AdvisoryGSP112 min
Jul 6, 5:48 PM EDTMesoscale DiscussionSPC57 min
Jul 7, 6:37 PM EDTMesoscale DiscussionSPC53 min
Jul 7, 7:11 PM EDTSevere Thunderstorm WarningGSP49 min
Jul 7, 7:21 PM EDTSevere Thunderstorm WatchSPC2 hr
Jul 8, 5:48 PM EDTMesoscale DiscussionSPC57 min
Jul 8, 6:15 PM EDTSevere Thunderstorm WatchSPC6 hr
Jul 8, 6:58 PM EDTSevere Thunderstorm WarningGSP62 min
Jul 8, 7:47 PM EDTSevere Thunderstorm WarningGSP58 min
Jul 14, 6:13 PM EDTSpecial Weather StatementGSP32 min
Jul 20, 3:58 PM EDTSpecial Weather StatementGSP47 min
Jul 23, 12:13 PM EDTMesoscale DiscussionSPC3 hr
Jul 23, 6:00 PM EDTSpecial Weather StatementGSP45 min
Jul 27, 6:04 PM EDTSpecial Weather StatementGSP26 min
Aug 4, 7:52 PM EDTSpecial Weather StatementGSP38 min
Aug 4, 8:35 PM EDTAreal Flood AdvisoryGSP115 min
Aug 4, 9:04 PM EDTSpecial Weather StatementGSP41 min
Aug 4, 9:42 PM EDTFlash Flood WarningGSP4 hr
Aug 5, 1:48 AM EDTAreal Flood WarningGSP6 hr
Aug 6, 2:53 PM EDTFlash Flood WatchGSP55 hr
Aug 18, 12:20 PM EDTSpecial Weather StatementGSP25 min
Aug 27, 9:05 PM EDTSpecial Weather StatementGSP25 min
Aug 28, 6:01 PM EDTSpecial Weather StatementGSP44 min
Aug 28, 6:13 PM EDTSevere Thunderstorm WarningGSP31 min
Oct 9, 3:56 AM EDTWind AdvisoryGSP14 hr
Oct 22, 4:34 AM EDTFrost AdvisoryGSP28 hr
Nov 4, 2:15 PM EDTFrost AdvisoryGSP19 hr
Nov 5, 2:48 PM EDTFrost AdvisoryGSP18 hr
Nov 6, 2:14 PM ESTFrost AdvisoryGSP18 hr
Nov 7, 2:42 PM ESTFrost AdvisoryGSP18 hr
Nov 9, 2:40 PM ESTFrost AdvisoryGSP18 hr
Nov 9, 2:40 PM ESTFreeze WarningGSP18 hr
Nov 18, 3:22 PM ESTRed Flag WarningGSP33 hr
Nov 19, 3:40 AM ESTWind AdvisoryGSP51 hr
Nov 25, 6:43 AM ESTDense Fog AdvisoryGSP3 hr
Nov 28, 3:59 AM ESTWind AdvisoryGSP27 hr
Nov 28, 2:28 PM ESTHigh Wind WarningGSP17 hr
Nov 29, 2:10 PM ESTWind AdvisoryGSP29 hr
Nov 30, 6:10 AM ESTMesoscale DiscussionSPC95 min
Nov 30, 7:47 AM ESTSpecial Weather StatementGSP73 min
Nov 30, 1:28 PM ESTSpecial Weather StatementGSP32 min
Dec 11, 9:55 AM ESTWind AdvisoryGSP24 hr
Dec 16, 3:43 AM ESTWind AdvisoryGSP54 hr
Dec 18, 6:39 AM ESTSpecial Weather StatementGSP51 min
Dec 25, 5:53 AM ESTDense Fog AdvisoryGSP4 hr
Dec 28, 2:21 AM ESTDense Fog AdvisoryGSP8 hr
Dec 28, 2:30 PM ESTWind AdvisoryGSP52 hr
Dec 28, 11:15 PM ESTSpecial Weather StatementGSP60 min
Dec 28, 11:19 PM ESTSpecial Weather StatementGSP56 min
Dec 29, 3:43 AM ESTWinter Weather AdvisoryGSP32 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 archive20152017

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.