Alert archive / North Carolina / Halifax County

Weather alerts in Halifax County, North Carolina, 2013

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

Halifax County and its neighbors

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

Alerts
129
Warnings
18
Watches
15
Advisories
23
Busiest month
June41 alerts
Busiest day
June 7, 201310 alerts

Over time

By month

Warning verification

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

Halifax County, 2013

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings00
Severe thunderstorm warnings10730%683%24 min
Flash flood warnings4250%1100%1 min

Each office's whole area, 2013

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Raleigh, NC: tornado warnings11464%683%10 min
NWS Raleigh, NC: severe thunderstorm warnings13710325%37290%24 min
NWS Raleigh, NC: flash flood warnings483233%11997%62 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, 2:12 PM ESTDense Fog AdvisoryRAH21 hr
Jan 12, 9:08 PM ESTDense Fog AdvisoryRAH14 hr
Jan 16, 3:44 PM ESTWinter Storm WatchRAH12 hr
Jan 17, 3:56 AM ESTWinter Storm WarningRAH22 hr
Jan 24, 3:05 PM ESTWinter Weather AdvisoryRAH44 hr
Jan 25, 12:43 PM ESTMesoscale DiscussionSPC4 hr
Jan 25, 2:12 PM ESTSpecial Weather StatementRAH78 min
Jan 27, 3:07 PM ESTFreezing Rain AdvisoryRAH18 hr
Jan 29, 9:55 PM ESTWind AdvisoryRAH30 hr
Jan 30, 7:56 PM ESTMesoscale DiscussionSPC94 min
Jan 30, 8:21 PM ESTTornado WatchSPC6 hr
Jan 30, 10:42 PM ESTMesoscale DiscussionSPC93 min
Jan 31, 12:45 AM ESTSpecial Weather StatementRAH75 min
Jan 31, 12:52 AM ESTMesoscale DiscussionSPC83 min
Feb 8, 4:00 AM ESTAreal Flood AdvisoryRAH3 hr
Feb 15, 3:51 PM ESTWinter Weather AdvisoryRAH30 hr
Feb 16, 10:05 PM ESTWinter Weather AdvisoryRAH12 hr
Feb 21, 3:36 PM ESTWinter Weather AdvisoryRAH18 hr
Mar 5, 3:41 PM ESTWind AdvisoryRAH27 hr
Mar 16, 7:00 PM EDTSpecial Weather StatementRAH60 min
Apr 2, 3:28 PM EDTFrost AdvisoryRAH17 hr
Apr 3, 4:10 AM EDTFreeze WatchRAH11 hr
Apr 3, 3:01 PM EDTFreeze WarningRAH6 hr
Apr 12, 1:58 AM EDTMesoscale DiscussionSPC92 min
Apr 12, 2:57 AM EDTTornado WatchSPC6 hr
Apr 12, 7:25 AM EDTMesoscale DiscussionSPC65 min
Apr 12, 2:32 PM EDTSpecial Weather StatementRAH58 min
Apr 19, 4:48 PM EDTMesoscale DiscussionSPC57 min
Apr 19, 6:27 PM EDTSevere Thunderstorm WatchSPC4 hr
Apr 19, 6:54 PM EDTMesoscale DiscussionSPC66 min
Apr 19, 7:14 PM EDTSevere Thunderstorm WarningRAH46 min
Apr 19, 7:52 PM EDTSevere Thunderstorm WarningRAH53 min
May 7, 1:56 PM EDTMesoscale DiscussionSPC64 min
May 9, 1:23 AM EDTDense Fog AdvisoryRAH7 hr
May 11, 1:44 PM EDTMesoscale DiscussionSPC91 min
May 11, 6:20 PM EDTSpecial Weather StatementRAH40 min
May 11, 7:11 PM EDTMesoscale DiscussionSPC64 min
May 13, 9:22 PM EDTFrost AdvisoryRAH11 hr
May 19, 2:57 PM EDTSpecial Weather StatementRAH63 min
May 21, 4:29 PM EDTAreal Flood AdvisoryRAH2 hr
May 21, 4:48 PM EDTFlash Flood WarningRAH117 min
May 23, 1:32 PM EDTSpecial Weather StatementRAH88 min
May 23, 3:12 PM EDTSpecial Weather StatementRAH63 min
May 23, 4:20 PM EDTAreal Flood AdvisoryRAH70 min
Jun 6, 4:15 AM EDTFlash Flood WatchRAH38 hr
Jun 7, 5:37 AM EDTTornado WatchSPC7 hr
Jun 7, 8:35 AM EDTMesoscale DiscussionSPC85 min
Jun 7, 10:33 AM EDTSpecial Weather StatementRAH42 min
Jun 7, 11:19 AM EDTSpecial Weather StatementRAH41 min
Jun 7, 11:25 AM EDTFlash Flood WarningRAH110 min
Jun 7, 11:53 AM EDTSpecial Weather StatementRAH37 min
Jun 7, 1:00 PM EDTTornado WatchSPC7 hr
Jun 7, 3:32 PM EDTMesoscale DiscussionSPC58 min
Jun 7, 4:00 PM EDTFlash Flood WarningRAH3 hr
Jun 7, 7:04 PM EDTFlash Flood WarningRAH116 min
Jun 9, 7:08 PM EDTSpecial Weather StatementRAH37 min
Jun 10, 3:50 AM EDTFlash Flood WatchRAH17 hr
Jun 10, 12:09 PM EDTRiver Flood WarningRAH33 hr
Jun 10, 12:48 PM EDTSpecial Weather StatementRAH72 min
Jun 10, 1:18 PM EDTTornado WatchSPC9 hr
Jun 10, 1:30 PM EDTSevere Thunderstorm WarningRAH30 min
Jun 10, 6:38 PM EDTSevere Thunderstorm WarningRAH37 min
Jun 10, 6:49 PM EDTMesoscale DiscussionSPC86 min
Jun 13, 11:38 AM EDTMesoscale DiscussionSPC67 min
Jun 13, 1:53 PM EDTMesoscale DiscussionSPC97 min
Jun 13, 2:08 PM EDTSevere Thunderstorm Watch PDSSPC8 hr
Jun 13, 4:22 PM EDTMesoscale DiscussionSPC53 min
Jun 13, 5:03 PM EDTSevere Thunderstorm WarningRAH57 min
Jun 13, 5:56 PM EDTSevere Thunderstorm WarningRAH94 min
Jun 18, 7:28 PM EDTSevere Thunderstorm WarningRAH62 min
Jun 18, 7:38 PM EDTSpecial Weather StatementRAH82 min
Jun 18, 8:04 PM EDTSevere Thunderstorm WarningRAH56 min
Jun 22, 10:36 PM EDTAreal Flood AdvisoryRAH3 hr
Jun 26, 2:30 PM EDTMesoscale DiscussionSPC3 hr
Jun 26, 6:27 PM EDTMesoscale DiscussionSPC93 min
Jun 26, 8:02 PM EDTSpecial Weather StatementRAH118 min
Jun 27, 6:17 PM EDTSpecial Weather StatementRAH43 min
Jun 28, 1:46 PM EDTMesoscale DiscussionSPC89 min
Jun 28, 2:51 PM EDTSevere Thunderstorm WatchSPC7 hr
Jun 28, 4:42 PM EDTMesoscale DiscussionSPC93 min
Jun 28, 6:14 PM EDTSpecial Weather StatementRAH31 min
Jun 28, 6:47 PM EDTMesoscale DiscussionSPC58 min
Jun 28, 7:02 PM EDTSpecial Weather StatementRAH58 min
Jun 29, 12:12 AM EDTAreal Flood AdvisoryRAH3 hr
Jun 30, 3:28 PM EDTFlash Flood WatchRAH3 days
Jul 1, 1:55 PM EDTSpecial Weather StatementRAH50 min
Jul 1, 2:55 PM EDTSpecial Weather StatementRAH50 min
Jul 2, 11:33 AM EDTMesoscale DiscussionSPC2 hr
Jul 2, 1:28 PM EDTSpecial Weather StatementRAH62 min
Jul 3, 1:26 PM EDTSpecial Weather StatementRAH64 min
Jul 11, 10:46 AM EDTFlash Flood WatchRAH34 hr
Jul 16, 11:26 PM EDTSpecial Weather StatementRAH64 min
Jul 16, 11:29 PM EDTSevere Thunderstorm WarningRAH46 min
Jul 24, 1:33 PM EDTMesoscale DiscussionSPC87 min
Jul 24, 6:25 PM EDTSevere Thunderstorm WarningRAH65 min
Jul 24, 6:43 PM EDTAreal Flood AdvisoryRAH107 min
Jul 28, 2:55 PM EDTSpecial Weather StatementRAH50 min
Aug 3, 12:04 PM EDTMesoscale DiscussionSPC116 min
Aug 3, 4:09 PM EDTSpecial Weather StatementRAH66 min
Aug 3, 7:20 PM EDTSpecial Weather StatementRAH55 min
Aug 10, 11:56 AM EDTMesoscale DiscussionSPC94 min
Aug 11, 3:38 PM EDTMesoscale DiscussionSPC67 min
Aug 13, 2:09 PM EDTMesoscale DiscussionSPC96 min
Aug 20, 2:33 AM EDTDense Fog AdvisoryRAH6 hr
Aug 22, 2:26 PM EDTMesoscale DiscussionSPC3 hr
Aug 23, 1:14 PM EDTMesoscale DiscussionSPC3 hr
Aug 23, 3:28 PM EDTSpecial Weather StatementRAH92 min
Aug 23, 5:01 PM EDTSpecial Weather StatementRAH59 min
Aug 31, 4:00 AM EDTDense Fog AdvisoryRAH5 hr
Sep 1, 3:39 PM EDTSpecial Weather StatementRAH66 min
Sep 1, 8:00 PM EDTSpecial Weather StatementRAH90 min
Sep 3, 11:12 AM EDTMesoscale DiscussionSPC3 hr
Sep 3, 12:26 PM EDTSpecial Weather StatementRAH49 min
Sep 21, 7:32 PM EDTMesoscale DiscussionSPC2 hr
Sep 21, 8:20 PM EDTSpecial Weather StatementRAH55 min
Oct 6, 6:22 AM EDTDense Fog AdvisoryRAH4 hr
Oct 7, 12:12 PM EDTMesoscale DiscussionSPC3 hr
Oct 7, 12:37 PM EDTSpecial Weather StatementRAH38 min
Oct 24, 2:57 PM EDTFreeze WatchRAH13 hr
Oct 25, 3:27 AM EDTFreeze WarningRAH30 hr
Nov 2, 6:42 PM EDTSpecial Weather StatementRAH78 min
Nov 18, 5:36 AM ESTSpecial Weather StatementRAH84 min
Dec 5, 12:39 AM ESTDense Fog AdvisoryRAH8 hr
Dec 17, 8:53 PM ESTSpecial Weather StatementRAH52 min
Dec 17, 10:00 PM ESTSpecial Weather StatementRAH45 min
Dec 23, 1:24 AM ESTSpecial Weather StatementRAH51 min
Dec 23, 4:35 AM ESTSpecial Weather StatementRAH55 min
Dec 23, 9:19 AM ESTSpecial Weather StatementRAH56 min
Dec 26, 5:22 AM ESTWinter Weather AdvisoryRAH5 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.