Alert archive / North Carolina / Surry County

Weather alerts in Surry County, North Carolina, 2017

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

Surry County and its neighbors

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

Alerts
132
Warnings
26
Watches
14
Advisories
26
Busiest month
May31 alerts
Busiest day
March 1, 20176 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 3 tornado warnings covering Surry County in 2017 had a tornado report inside them.

Surry County, 2017

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings3167%0
Severe thunderstorm warnings15147%743%18 min
Flash flood warnings10100%0

Each office's whole area, 2017

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Blacksburg, VA: tornado warnings17476%1258%17 min
NWS Blacksburg, VA: severe thunderstorm warnings16714016%46274%19 min
NWS Blacksburg, VA: flash flood warnings241538%5372%80 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, 2:56 PM ESTWinter Storm WatchRNK13 hr
Jan 6, 3:54 AM ESTWinter Storm WarningRNK34 hr
Jan 6, 3:47 PM ESTWind Chill AdvisoryRNK50 hr
Jan 6, 8:56 PM ESTMesoscale DiscussionSPC6 hr
Jan 7, 3:18 AM ESTMesoscale DiscussionSPC5 hr
Jan 7, 2:24 PM ESTWinter Weather AdvisoryRNK22 hr
Jan 8, 2:23 PM ESTWinter Weather AdvisoryRNK46 hr
Jan 21, 3:57 AM ESTDense Fog AdvisoryRNK8 hr
Feb 8, 3:29 PM ESTWind AdvisoryRNK33 hr
Feb 12, 3:16 AM ESTWind AdvisoryRNK34 hr
Feb 22, 10:30 PM ESTDense Fog AdvisoryRNK12 hr
Mar 1, 9:44 AM ESTMesoscale DiscussionSPC91 min
Mar 1, 10:38 AM ESTSevere Thunderstorm WatchSPC4 hr
Mar 1, 12:25 PM ESTMesoscale DiscussionSPC65 min
Mar 1, 3:02 PM ESTSevere Thunderstorm WatchSPC7 hr
Mar 1, 3:39 PM ESTSpecial Weather StatementRNK21 min
Mar 1, 4:05 PM ESTSpecial Weather StatementRNK25 min
Mar 10, 2:36 PM ESTWinter Weather AdvisoryRNK42 hr
Mar 18, 3:26 PM EDTMesoscale DiscussionSPC3 hr
Mar 27, 4:51 PM EDTSpecial Weather StatementRNK24 min
Mar 27, 5:35 PM EDTSpecial Weather StatementRNK25 min
Mar 27, 6:31 PM EDTSpecial Weather StatementRNK29 min
Mar 27, 6:35 PM EDTSevere Thunderstorm WarningRNK40 min
Mar 27, 7:09 PM EDTSevere Thunderstorm WarningRNK51 min
Mar 31, 6:52 AM EDTSpecial Weather StatementRNK53 min
Apr 5, 3:39 PM EDTWind AdvisoryRNK48 hr
Apr 6, 12:51 AM EDTMesoscale DiscussionSPC114 min
Apr 6, 3:54 PM EDTFreeze WatchRNK23 hr
Apr 7, 3:17 PM EDTFrost AdvisoryRNK18 hr
Apr 8, 2:44 PM EDTFrost AdvisoryRNK18 hr
Apr 21, 2:13 PM EDTMesoscale DiscussionSPC2 hr
Apr 21, 4:19 PM EDTMesoscale DiscussionSPC56 min
Apr 22, 11:57 AM EDTMesoscale DiscussionSPC2 hr
Apr 22, 2:22 PM EDTSpecial Weather StatementRNK23 min
Apr 22, 4:11 PM EDTFlood WatchRNK64 hr
Apr 23, 11:25 PM EDTAreal Flood AdvisoryRNK12 hr
Apr 24, 5:04 AM EDTRiver Flood WarningRNK29 hr
May 1, 4:01 PM EDTSpecial Weather StatementRNK59 min
May 1, 4:02 PM EDTMesoscale DiscussionSPC118 min
May 1, 4:53 PM EDTSpecial Weather StatementRNK52 min
May 4, 2:57 PM EDTFlood WatchRNK18 hr
May 4, 8:19 PM EDTSpecial Weather StatementRNK71 min
May 5, 2:16 AM EDTAreal Flood WarningRNK6 hr
May 9, 6:36 PM EDTSevere Thunderstorm WarningRNK54 min
May 9, 9:53 PM EDTSevere Thunderstorm WarningRNK52 min
May 11, 6:19 AM EDTFlood WatchRNK30 hr
May 11, 4:47 PM EDTMesoscale DiscussionSPC2 hr
May 18, 8:17 PM EDTSpecial Weather StatementRNK58 min
May 19, 1:29 PM EDTSpecial Weather StatementRNK61 min
May 19, 1:50 PM EDTSevere Thunderstorm WarningRNK25 min
May 19, 2:20 PM EDTSevere Thunderstorm WarningRNK41 min
May 19, 2:24 PM EDTMesoscale DiscussionSPC2 hr
May 19, 3:00 PM EDTSevere Thunderstorm WarningRNK60 min
May 20, 2:53 AM EDTSpecial Weather StatementRNK52 min
May 21, 4:39 AM EDTFlash Flood WatchRNK18 hr
May 23, 3:22 AM EDTFlood WatchRNK23 hr
May 24, 4:27 AM EDTFlash Flood WatchRNK20 hr
May 24, 3:13 PM EDTMesoscale DiscussionSPC2 hr
May 24, 3:46 PM EDTTornado WatchSPC6 hr
May 24, 4:07 PM EDTFlash Flood WarningRNK6 hr
May 24, 4:32 PM EDTSevere Thunderstorm WarningRNK58 min
May 24, 4:42 PM EDTTornado Warning Tornado observedRNK33 min
May 27, 6:11 PM EDTMesoscale DiscussionSPC64 min
May 27, 6:55 PM EDTSevere Thunderstorm WatchSPC9 hr
May 27, 9:17 PM EDTSpecial Weather StatementRNK58 min
May 27, 10:46 PM EDTMesoscale DiscussionSPC89 min
May 30, 7:00 PM EDTSpecial Weather StatementRNK30 min
May 31, 6:10 PM EDTSevere Thunderstorm WarningRNK65 min
Jun 4, 3:15 PM EDTMesoscale DiscussionSPC90 min
Jun 4, 3:42 PM EDTSpecial Weather StatementRNK63 min
Jun 13, 2:54 PM EDTSpecial Weather StatementRNK36 min
Jun 13, 6:08 PM EDTSevere Thunderstorm WarningRNK33 min
Jun 14, 1:17 PM EDTMesoscale DiscussionSPC2 hr
Jun 15, 1:22 PM EDTSpecial Weather StatementRNK53 min
Jun 16, 1:27 PM EDTMesoscale DiscussionSPC3 hr
Jun 16, 6:51 PM EDTAreal Flood AdvisoryRNK3 hr
Jun 18, 9:48 PM EDTSpecial Weather StatementRNK42 min
Jun 19, 4:59 PM EDTSpecial Weather StatementRNK61 min
Jun 24, 2:06 PM EDTSpecial Weather StatementRNK54 min
Jul 1, 3:29 PM EDTSpecial Weather StatementRNK46 min
Jul 1, 6:31 PM EDTSpecial Weather StatementRNK44 min
Jul 4, 3:54 PM EDTSpecial Weather StatementRNK66 min
Jul 4, 4:46 PM EDTAreal Flood AdvisoryRNK3 hr
Jul 6, 5:22 PM EDTMesoscale DiscussionSPC113 min
Jul 12, 4:58 PM EDTSpecial Weather StatementRNK32 min
Jul 14, 12:42 PM EDTSpecial Weather StatementRNK48 min
Jul 14, 1:57 PM EDTSpecial Weather StatementRNK33 min
Jul 14, 2:50 PM EDTSpecial Weather StatementRNK25 min
Jul 17, 8:36 PM EDTSpecial Weather StatementRNK54 min
Jul 18, 1:41 PM EDTSpecial Weather StatementRNK49 min
Jul 18, 1:54 PM EDTSevere Thunderstorm WarningRNK66 min
Jul 18, 2:31 PM EDTMesoscale DiscussionSPC59 min
Jul 21, 3:46 PM EDTSpecial Weather StatementRNK59 min
Jul 22, 2:39 PM EDTSpecial Weather StatementRNK36 min
Jul 22, 3:19 PM EDTSpecial Weather StatementRNK26 min
Jul 22, 3:49 PM EDTSpecial Weather StatementRNK41 min
Jul 22, 4:06 PM EDTSevere Thunderstorm WarningRNK54 min
Jul 22, 4:13 PM EDTSpecial Weather StatementRNK17 min
Jul 23, 11:36 AM EDTMesoscale DiscussionSPC2 hr
Jul 24, 12:36 AM EDTSpecial Weather StatementRNK54 min
Jul 27, 5:40 PM EDTSpecial Weather StatementRNK65 min
Aug 12, 8:50 PM EDTSpecial Weather StatementRNK55 min
Aug 18, 1:32 PM EDTSpecial Weather StatementRNK28 min
Aug 18, 4:05 PM EDTSpecial Weather StatementRNK40 min
Sep 1, 2:16 PM EDTSpecial Weather StatementRNK29 min
Sep 5, 3:36 PM EDTMesoscale DiscussionSPC54 min
Sep 5, 3:55 PM EDTSevere Thunderstorm WarningRNK65 min
Sep 10, 3:08 PM EDTWind AdvisoryRNK42 hr
Oct 8, 4:31 AM EDTWind AdvisoryRNK29 hr
Oct 8, 10:40 PM EDTAreal Flood WarningRNK6 hr
Oct 8, 11:08 PM EDTAreal Flood AdvisoryRNK6 hr
Oct 9, 12:38 AM EDTAreal Flood WarningRNK6 hr
Oct 15, 5:14 AM EDTDense Fog AdvisoryRNK6 hr
Oct 17, 4:03 AM EDTFrost AdvisoryRNK29 hr
Oct 23, 2:00 PM EDTTornado WatchSPC8 hr
Oct 23, 4:33 PM EDTMesoscale DiscussionSPC57 min
Oct 23, 5:23 PM EDTSevere Thunderstorm WarningRNK67 min
Oct 23, 5:26 PM EDTTornado WarningRNK34 min
Oct 23, 5:47 PM EDTSevere Thunderstorm WarningRNK58 min
Oct 23, 5:55 PM EDTTornado WarningRNK35 min
Oct 25, 3:00 PM EDTFrost AdvisoryRNK18 hr
Oct 26, 3:12 AM EDTFrost AdvisoryRNK30 hr
Oct 28, 3:49 PM EDTWind AdvisoryRNK42 hr
Oct 28, 10:34 PM EDTSpecial Weather StatementRNK56 min
Nov 9, 3:41 AM ESTFreeze WatchRNK23 hr
Nov 10, 3:03 AM ESTFreeze WarningRNK31 hr
Nov 13, 5:31 AM ESTDense Fog AdvisoryRNK4 hr
Dec 8, 4:15 AM ESTWinter Weather AdvisoryRNK10 hr
Dec 8, 12:06 PM ESTMesoscale DiscussionSPC4 hr
Dec 8, 2:34 PM ESTWinter Storm WarningRNK25 hr
Dec 9, 3:47 PM ESTWinter Weather AdvisoryRNK18 hr
Dec 24, 4:44 AM ESTWind AdvisoryRNK31 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.