Alert archive / North Carolina / Avery County

Weather alerts in Avery County, North Carolina, 2017

104 weather alerts in 2017, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Avery County and its neighbors

Each county as a circle sized by its count in 2017. Tap one for its archive.

Alerts
104
Warnings
17
Watches
11
Advisories
37
Busiest month
May17 alerts
Busiest day
October 23, 20177 alerts

Over time

By month

Warning verification

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

Avery County, 2017

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings00
Severe thunderstorm warnings6350%0
Flash flood warnings10100%0

Each office's whole area, 2017

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Greenville-Spartanburg, SC: tornado warnings351266%4693%19 min
NWS Greenville-Spartanburg, SC: severe thunderstorm warnings28622721%73676%20 min
NWS Greenville-Spartanburg, SC: flash flood warnings231439%5064%48 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 5, 3:15 PM ESTWinter Storm WarningGSP46 hr
Jan 6, 8:56 PM ESTMesoscale DiscussionSPC6 hr
Jan 7, 3:42 AM ESTWind Chill WarningGSP32 hr
Jan 7, 3:04 PM ESTWinter Weather AdvisoryGSP21 hr
Jan 8, 2:55 PM ESTWinter Weather AdvisoryGSP21 hr
Jan 9, 2:48 PM ESTWinter Weather AdvisoryGSP21 hr
Jan 23, 3:48 AM ESTWind AdvisoryGSP32 hr
Jan 25, 2:30 PM ESTWind AdvisoryGSP29 hr
Jan 28, 3:18 PM ESTWinter Weather AdvisoryGSP43 hr
Feb 8, 3:46 AM ESTWind AdvisoryGSP39 hr
Feb 8, 10:23 PM ESTSpecial Weather StatementGSP52 min
Feb 11, 2:54 PM ESTHigh Wind WatchGSP13 hr
Feb 12, 3:51 AM ESTHigh Wind WarningGSP33 hr
Feb 23, 2:55 AM ESTDense Fog AdvisoryGSP7 hr
Mar 1, 2:35 PM ESTWind AdvisoryGSP21 hr
Mar 1, 3:02 PM ESTSevere Thunderstorm WatchSPC7 hr
Mar 10, 3:53 AM ESTWind AdvisoryGSP17 hr
Mar 10, 3:55 AM ESTWinter Storm WatchGSP12 hr
Mar 10, 3:33 PM ESTWinter Storm WarningGSP36 hr
Mar 10, 3:33 PM ESTWinter Weather AdvisoryGSP42 hr
Mar 13, 4:14 AM EDTWinter Weather AdvisoryGSP52 hr
Mar 15, 3:43 AM EDTWind Chill AdvisoryGSP10 hr
Mar 15, 1:58 PM EDTWind Chill AdvisoryGSP20 hr
Apr 5, 3:50 AM EDTHigh Wind WatchGSP12 hr
Apr 5, 3:31 PM EDTHigh Wind WarningGSP43 hr
Apr 5, 3:31 PM EDTWind AdvisoryGSP52 hr
Apr 6, 4:12 AM EDTWinter Weather AdvisoryGSP30 hr
Apr 21, 2:13 PM EDTMesoscale DiscussionSPC2 hr
Apr 21, 4:19 PM EDTMesoscale DiscussionSPC56 min
Apr 22, 2:57 PM EDTFlood WatchGSP61 hr
Apr 22, 8:06 PM EDTSpecial Weather StatementGSP39 min
Apr 22, 8:51 PM EDTSpecial Weather StatementGSP54 min
Apr 23, 8:11 PM EDTSpecial Weather StatementGSP2 hr
Apr 23, 8:24 PM EDTSpecial Weather StatementGSP111 min
Apr 23, 10:23 PM EDTSpecial Weather StatementGSP52 min
May 1, 2:48 PM EDTWind AdvisoryGSP24 hr
May 3, 3:26 AM EDTWind AdvisoryGSP43 hr
May 11, 4:47 PM EDTMesoscale DiscussionSPC2 hr
May 18, 7:09 PM EDTSpecial Weather StatementGSP36 min
May 19, 1:18 PM EDTSevere Thunderstorm WarningGSP42 min
May 21, 4:24 AM EDTFlash Flood WatchGSP18 hr
May 22, 12:49 PM EDTSpecial Weather StatementGSP26 min
May 24, 4:23 AM EDTFlash Flood WatchGSP18 hr
May 24, 10:04 AM EDTTornado WatchSPC11 hr
May 27, 6:11 PM EDTMesoscale DiscussionSPC64 min
May 27, 6:55 PM EDTSevere Thunderstorm WatchSPC9 hr
May 27, 9:19 PM EDTSpecial Weather StatementGSP56 min
May 27, 10:28 PM EDTSpecial Weather StatementGSP47 min
May 27, 10:46 PM EDTMesoscale DiscussionSPC89 min
May 27, 11:56 PM EDTSpecial Weather StatementGSP34 min
May 27, 11:59 PM EDTSevere Thunderstorm WarningGSP31 min
May 28, 12:21 AM EDTSevere Thunderstorm WarningGSP54 min
Jun 13, 1:53 PM EDTSpecial Weather StatementGSP37 min
Jun 13, 2:24 PM EDTSpecial Weather StatementGSP36 min
Jun 13, 2:53 PM EDTSevere Thunderstorm WarningGSP52 min
Jun 14, 1:17 PM EDTMesoscale DiscussionSPC2 hr
Jun 16, 1:05 PM EDTSpecial Weather StatementGSP55 min
Jun 16, 2:10 PM EDTSpecial Weather StatementGSP50 min
Jul 3, 1:34 PM EDTSpecial Weather StatementGSP26 min
Jul 3, 2:00 PM EDTSpecial Weather StatementGSP30 min
Jul 3, 2:29 PM EDTAreal Flood AdvisoryGSP2 hr
Jul 7, 2:43 AM EDTSpecial Weather StatementGSP47 min
Jul 7, 8:18 AM EDTAreal Flood AdvisoryGSP117 min
Jul 13, 4:49 PM EDTSpecial Weather StatementGSP26 min
Jul 14, 4:34 PM EDTSevere Thunderstorm WarningGSP41 min
Jul 17, 1:34 PM EDTSpecial Weather StatementGSP41 min
Jul 17, 2:30 PM EDTSpecial Weather StatementGSP30 min
Jul 18, 2:31 PM EDTMesoscale DiscussionSPC59 min
Jul 18, 3:41 PM EDTSevere Thunderstorm WarningGSP49 min
Jul 23, 11:36 AM EDTMesoscale DiscussionSPC2 hr
Jul 23, 11:29 PM EDTSpecial Weather StatementGSP46 min
Sep 5, 2:56 PM EDTSpecial Weather StatementGSP34 min
Sep 5, 3:32 PM EDTSpecial Weather StatementGSP28 min
Sep 5, 3:36 PM EDTMesoscale DiscussionSPC54 min
Sep 10, 3:34 PM EDTWind AdvisoryGSP36 hr
Oct 7, 2:57 PM EDTFlash Flood WatchGSP37 hr
Oct 7, 3:03 PM EDTWind AdvisoryGSP37 hr
Oct 8, 4:28 AM EDTHigh Wind WarningGSP24 hr
Oct 8, 7:45 PM EDTSpecial Weather StatementGSP45 min
Oct 8, 7:54 PM EDTAreal Flood AdvisoryGSP2 hr
Oct 17, 3:35 AM EDTFrost AdvisoryGSP29 hr
Oct 23, 12:46 PM EDTSpecial Weather StatementGSP29 min
Oct 23, 2:00 PM EDTTornado WatchSPC8 hr
Oct 23, 2:25 PM EDTSpecial Weather StatementGSP35 min
Oct 23, 3:04 PM EDTAreal Flood AdvisoryGSP6 hr
Oct 23, 3:09 PM EDTAreal Flood AdvisoryGSP6 hr
Oct 23, 3:32 PM EDTFlash Flood WarningGSP6 hr
Oct 23, 7:33 PM EDTAreal Flood WarningGSP6 hr
Oct 24, 3:03 AM EDTFreeze WarningGSP30 hr
Oct 25, 3:13 AM EDTFreeze WarningGSP30 hr
Oct 28, 2:54 PM EDTWind AdvisoryGSP43 hr
Oct 28, 8:20 PM EDTAreal Flood AdvisoryGSP115 min
Nov 18, 3:53 AM ESTWind AdvisoryGSP32 hr
Nov 18, 10:35 PM ESTSpecial Weather StatementGSP25 min
Dec 7, 4:42 PM ESTWinter Weather AdvisoryGSP43 hr
Dec 7, 9:47 PM ESTWinter Storm WarningGSP38 hr
Dec 8, 12:06 PM ESTMesoscale DiscussionSPC4 hr
Dec 9, 2:45 PM ESTWinter Weather AdvisoryGSP19 hr
Dec 11, 3:10 PM ESTWind Chill AdvisoryGSP40 hr
Dec 11, 3:10 PM ESTWinter Weather AdvisoryGSP40 hr
Dec 11, 3:26 PM ESTWind AdvisoryGSP40 hr
Dec 13, 3:39 AM ESTWind AdvisoryGSP27 hr
Dec 24, 4:00 AM ESTWind AdvisoryGSP31 hr
Dec 31, 3:41 PM ESTWinter Weather AdvisoryGSP18 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 archive20162018

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.