Alert archive / North Carolina / Rowan County

Weather alerts in Rowan County, North Carolina, 2013

131 weather alerts in 2013, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Rowan County and its neighbors

Each county as a circle sized by its count in 2013. Tap one for its archive.

Alerts
131
Warnings
31
Watches
17
Advisories
29
Busiest month
June39 alerts
Busiest day
April 19, 20135 alerts

Over time

By month

Warning verification

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

Rowan County, 2013

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings00
Severe thunderstorm warnings221532%1182%26 min
Flash flood warnings110%0

Each office's whole area, 2013

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Greenville-Spartanburg, SC: tornado warnings11373%683%14 min
NWS Greenville-Spartanburg, SC: severe thunderstorm warnings34024029%46786%24 min
NWS Greenville-Spartanburg, SC: flash flood warnings916924%20481%68 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 11, 2:53 PM ESTDense Fog AdvisoryGSP19 hr
Jan 12, 8:01 PM ESTDense Fog AdvisoryGSP14 hr
Jan 16, 4:06 PM ESTWinter Storm WatchGSP12 hr
Jan 16, 4:06 PM ESTWinter Storm WarningGSP34 hr
Jan 17, 6:54 PM ESTMesoscale DiscussionSPC4 hr
Jan 24, 3:41 PM ESTWinter Weather AdvisoryGSP44 hr
Jan 25, 12:43 PM ESTMesoscale DiscussionSPC4 hr
Jan 27, 2:17 PM ESTFreezing Rain AdvisoryGSP13 hr
Jan 29, 3:40 PM ESTWind AdvisoryGSP69 hr
Jan 30, 1:19 PM ESTTornado WatchSPC9 hr
Jan 30, 7:42 PM ESTSevere Thunderstorm WarningGSP63 min
Jan 30, 7:56 PM ESTMesoscale DiscussionSPC94 min
Jan 30, 8:01 PM ESTSevere Thunderstorm WarningGSP59 min
Feb 21, 4:47 AM ESTWinter Weather AdvisoryGSP29 hr
Feb 24, 4:13 AM ESTDense Fog AdvisoryGSP6 hr
Feb 26, 3:40 AM ESTFreezing Rain AdvisoryGSP6 hr
Feb 26, 10:23 PM ESTDense Fog AdvisoryGSP6 hr
Mar 5, 3:58 AM ESTWind AdvisoryGSP39 hr
Mar 19, 2:58 PM EDTFreeze WatchGSP13 hr
Mar 20, 4:12 AM EDTFreeze WarningGSP29 hr
Mar 20, 3:25 PM EDTFreeze WatchGSP22 hr
Mar 21, 8:56 AM EDTFreeze WarningGSP24 hr
Mar 24, 3:45 PM EDTFreeze WatchGSP21 hr
Mar 24, 3:45 PM EDTFreeze WarningGSP15 hr
Mar 25, 12:51 PM EDTFreeze WarningGSP20 hr
Mar 26, 3:47 AM EDTFreeze WatchGSP5 hr
Mar 26, 8:53 AM EDTFreeze WarningGSP25 hr
Mar 27, 3:56 AM EDTFreeze WarningGSP30 hr
Mar 28, 9:53 AM EDTFreeze WarningGSP24 hr
Apr 1, 3:23 PM EDTFrost AdvisoryGSP18 hr
Apr 2, 2:37 PM EDTFrost AdvisoryGSP17 hr
Apr 11, 8:24 PM EDTTornado WatchSPC8 hr
Apr 19, 12:35 PM EDTMesoscale DiscussionSPC115 min
Apr 19, 2:00 PM EDTTornado WatchSPC7 hr
Apr 19, 3:10 PM EDTSevere Thunderstorm WarningGSP65 min
Apr 19, 4:28 PM EDTSevere Thunderstorm WarningGSP47 min
Apr 19, 4:48 PM EDTMesoscale DiscussionSPC57 min
May 6, 2:13 PM EDTMesoscale DiscussionSPC62 min
May 11, 3:09 PM EDTSpecial Weather StatementGSP51 min
May 11, 7:06 PM EDTSpecial Weather StatementGSP39 min
May 11, 7:11 PM EDTMesoscale DiscussionSPC64 min
May 17, 6:42 PM EDTSpecial Weather StatementGSP33 min
May 23, 9:30 PM EDTSpecial Weather StatementGSP45 min
Jun 3, 2:28 PM EDTMesoscale DiscussionSPC62 min
Jun 3, 7:13 PM EDTSevere Thunderstorm WarningGSP47 min
Jun 5, 10:07 PM EDTSpecial Weather StatementGSP53 min
Jun 6, 4:59 AM EDTFlash Flood WatchGSP37 hr
Jun 7, 5:27 PM EDTSpecial Weather StatementGSP33 min
Jun 7, 6:17 PM EDTSpecial Weather StatementGSP43 min
Jun 7, 6:32 PM EDTAreal Flood AdvisoryGSP118 min
Jun 7, 10:15 PM EDTAreal Flood AdvisoryGSP105 min
Jun 7, 11:54 PM EDTAreal Flood AdvisoryGSP2 hr
Jun 9, 9:09 PM EDTFlash Flood WatchGSP19 hr
Jun 10, 11:31 AM EDTMesoscale DiscussionSPC119 min
Jun 10, 1:18 PM EDTTornado WatchSPC9 hr
Jun 10, 3:13 PM EDTSpecial Weather StatementGSP47 min
Jun 10, 3:18 PM EDTSevere Thunderstorm WarningGSP57 min
Jun 13, 11:38 AM EDTMesoscale DiscussionSPC67 min
Jun 13, 1:40 PM EDTSevere Thunderstorm WatchSPC7 hr
Jun 13, 4:11 PM EDTSevere Thunderstorm WarningGSP64 min
Jun 13, 4:22 PM EDTMesoscale DiscussionSPC53 min
Jun 18, 7:05 PM EDTAreal Flood AdvisoryGSP115 min
Jun 23, 2:56 PM EDTAreal Flood AdvisoryGSP94 min
Jun 24, 4:35 PM EDTSevere Thunderstorm WarningGSP55 min
Jun 24, 4:55 PM EDTSevere Thunderstorm WarningGSP65 min
Jun 25, 4:52 PM EDTSpecial Weather StatementGSP38 min
Jun 26, 2:30 PM EDTMesoscale DiscussionSPC3 hr
Jun 26, 5:03 PM EDTSevere Thunderstorm WarningGSP57 min
Jun 26, 5:07 PM EDTAreal Flood AdvisoryGSP113 min
Jun 26, 5:30 PM EDTSpecial Weather StatementGSP60 min
Jun 26, 5:56 PM EDTSpecial Weather StatementGSP64 min
Jun 27, 7:41 PM EDTSevere Thunderstorm WarningGSP64 min
Jun 28, 1:46 PM EDTMesoscale DiscussionSPC89 min
Jun 28, 4:42 PM EDTMesoscale DiscussionSPC93 min
Jun 28, 5:08 PM EDTSevere Thunderstorm WarningGSP52 min
Jun 28, 7:39 PM EDTSevere Thunderstorm WarningGSP81 min
Jun 28, 8:29 PM EDTAreal Flood AdvisoryGSP2 hr
Jun 28, 8:34 PM EDTSpecial Weather StatementGSP26 min
Jun 28, 8:38 PM EDTSevere Thunderstorm WarningGSP37 min
Jun 28, 8:58 PM EDTFlash Flood WarningGSP3 hr
Jun 30, 3:24 PM EDTFlash Flood WatchGSP7 days
Jun 30, 5:30 PM EDTSpecial Weather StatementGSP45 min
Jul 3, 12:29 AM EDTSpecial Weather StatementGSP31 min
Jul 4, 5:30 PM EDTSevere Thunderstorm WarningGSP60 min
Jul 5, 6:13 PM EDTSpecial Weather StatementGSP47 min
Jul 9, 9:50 PM EDTSevere Thunderstorm WarningGSP55 min
Jul 10, 9:37 PM EDTSpecial Weather StatementGSP68 min
Jul 11, 4:16 AM EDTFlash Flood WatchGSP24 hr
Jul 11, 9:59 PM EDTSpecial Weather StatementGSP46 min
Jul 17, 2:22 PM EDTMesoscale DiscussionSPC83 min
Jul 17, 2:57 PM EDTSevere Thunderstorm WatchSPC7 hr
Jul 17, 3:27 PM EDTSevere Thunderstorm WarningGSP63 min
Jul 20, 2:46 PM EDTAreal Flood AdvisoryGSP104 min
Jul 20, 6:11 PM EDTSpecial Weather StatementGSP49 min
Jul 21, 5:45 PM EDTAreal Flood AdvisoryGSP105 min
Jul 24, 1:33 PM EDTMesoscale DiscussionSPC87 min
Jul 24, 6:25 PM EDTSpecial Weather StatementGSP50 min
Jul 24, 8:31 PM EDTSpecial Weather StatementGSP44 min
Jul 25, 5:26 PM EDTMesoscale DiscussionSPC3 hr
Jul 27, 11:02 AM EDTFlash Flood WatchGSP19 hr
Jul 27, 1:12 PM EDTSpecial Weather StatementGSP48 min
Jul 27, 1:43 PM EDTMesoscale DiscussionSPC92 min
Jul 28, 8:55 PM EDTSpecial Weather StatementGSP50 min
Jul 31, 5:35 PM EDTSpecial Weather StatementGSP40 min
Aug 1, 2:18 PM EDTMesoscale DiscussionSPC117 min
Aug 1, 6:21 PM EDTSpecial Weather StatementGSP24 min
Aug 1, 6:38 PM EDTSevere Thunderstorm WarningGSP52 min
Aug 9, 4:12 PM EDTSpecial Weather StatementGSP48 min
Aug 9, 6:18 PM EDTSpecial Weather StatementGSP42 min
Aug 10, 4:14 PM EDTSevere Thunderstorm WarningGSP46 min
Aug 10, 4:36 PM EDTSevere Thunderstorm WarningGSP54 min
Aug 12, 6:14 PM EDTSpecial Weather StatementGSP46 min
Aug 17, 3:32 PM EDTSpecial Weather StatementGSP58 min
Aug 17, 6:45 PM EDTSpecial Weather StatementGSP45 min
Aug 20, 2:50 AM EDTDense Fog AdvisoryGSP6 hr
Aug 21, 1:26 PM EDTMesoscale DiscussionSPC3 hr
Aug 22, 10:00 PM EDTSpecial Weather StatementGSP45 min
Aug 22, 11:28 PM EDTAreal Flood AdvisoryGSP2 hr
Aug 23, 1:14 PM EDTMesoscale DiscussionSPC3 hr
Sep 1, 4:48 PM EDTSevere Thunderstorm WarningGSP57 min
Sep 1, 5:51 PM EDTSevere Thunderstorm WarningGSP54 min
Sep 12, 6:18 PM EDTSpecial Weather StatementGSP27 min
Sep 21, 7:32 PM EDTMesoscale DiscussionSPC2 hr
Oct 7, 8:38 AM EDTSpecial Weather StatementGSP37 min
Oct 23, 3:26 AM EDTFrost AdvisoryGSP30 hr
Nov 17, 5:42 AM ESTDense Fog AdvisoryGSP5 hr
Nov 23, 6:16 AM ESTDense Fog AdvisoryGSP104 min
Nov 25, 4:27 AM ESTFreezing Rain AdvisoryGSP29 hr
Dec 4, 6:17 AM ESTDense Fog AdvisoryGSP4 hr
Dec 15, 5:50 AM ESTDense Fog AdvisoryGSP3 hr
Dec 22, 3:29 AM ESTFlood WatchGSP33 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 archive20122014

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.