Alert archive / North Carolina / Halifax County

Weather alerts in Halifax County, North Carolina, 2015

130 weather alerts in 2015, 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 2015. Tap one for its archive.

Alerts
130
Warnings
18
Watches
13
Advisories
42
Busiest month
June33 alerts
Busiest day
April 21, 20157 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, 2015

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings00
Severe thunderstorm warnings13746%978%25 min
Flash flood warnings00

Each office's whole area, 2015

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Raleigh, NC: tornado warnings5180%1100%3 min
NWS Raleigh, NC: severe thunderstorm warnings22516228%37590%21 min
NWS Raleigh, NC: flash flood warnings352431%4988%73 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 3, 9:32 PM ESTDense Fog AdvisoryRAH9 hr
Jan 4, 3:48 PM ESTMesoscale DiscussionSPC87 min
Jan 7, 4:17 AM ESTWind Chill AdvisoryRAH30 hr
Jan 12, 10:50 PM ESTWinter Storm WatchRAH16 hr
Jan 13, 4:36 AM ESTWinter Weather AdvisoryRAH31 hr
Jan 13, 10:18 PM ESTSpecial Weather StatementRAH3 hr
Jan 14, 12:31 AM ESTMesoscale DiscussionSPC4 hr
Jan 14, 1:40 AM ESTSpecial Weather StatementRAH80 min
Jan 14, 5:36 PM ESTSpecial Weather StatementRAH3 hr
Feb 2, 4:01 AM ESTWind AdvisoryRAH15 hr
Feb 14, 4:59 AM ESTWind AdvisoryRAH25 hr
Feb 14, 3:28 PM ESTWind Chill AdvisoryRAH18 hr
Feb 15, 4:18 PM ESTWinter Storm WatchRAH13 hr
Feb 15, 4:18 PM ESTWinter Storm WarningRAH41 hr
Feb 16, 4:50 PM ESTMesoscale DiscussionSPC6 hr
Feb 17, 9:00 AM ESTWinter Storm WarningRAH103 min
Feb 17, 2:58 PM ESTWinter Weather AdvisoryRAH19 hr
Feb 18, 3:57 AM ESTWind Chill AdvisoryRAH53 hr
Feb 18, 4:06 PM ESTWinter Weather AdvisoryRAH17 hr
Feb 24, 4:22 AM ESTWinter Weather AdvisoryRAH31 hr
Feb 24, 4:38 PM ESTWinter Storm WatchRAH12 hr
Feb 25, 4:28 AM ESTWinter Storm WarningRAH32 hr
Feb 26, 1:56 PM ESTWinter Weather AdvisoryRAH20 hr
Feb 27, 2:59 PM ESTWinter Weather AdvisoryRAH19 hr
Feb 28, 3:49 PM ESTWinter Weather AdvisoryRAH24 hr
Mar 2, 2:57 AM ESTDense Fog AdvisoryRAH6 hr
Mar 4, 4:27 AM ESTDense Fog AdvisoryRAH7 hr
Mar 5, 3:44 AM ESTWinter Weather AdvisoryRAH29 hr
Mar 26, 9:48 AM EDTSpecial Weather StatementRAH57 min
Mar 26, 11:34 AM EDTSpecial Weather StatementRAH41 min
Apr 3, 2:59 PM EDTFire Weather WatchRAH16 hr
Apr 4, 2:33 PM EDTFrost AdvisoryRAH17 hr
Apr 8, 8:37 PM EDTSpecial Weather StatementRAH53 min
Apr 10, 3:48 AM EDTDense Fog AdvisoryRAH5 hr
Apr 14, 4:29 PM EDTMesoscale DiscussionSPC46 min
Apr 14, 7:45 PM EDTSevere Thunderstorm WarningRAH45 min
Apr 14, 8:31 PM EDTAreal Flood AdvisoryRAH59 min
Apr 14, 8:44 PM EDTSpecial Weather StatementRAH46 min
Apr 20, 1:44 AM EDTAreal Flood AdvisoryRAH3 hr
Apr 20, 2:18 AM EDTSpecial Weather StatementRAH57 min
Apr 20, 2:25 AM EDTMesoscale DiscussionSPC95 min
Apr 20, 2:55 PM EDTSevere Thunderstorm WatchSPC7 hr
Apr 20, 5:22 PM EDTSevere Thunderstorm WarningRAH53 min
Apr 20, 8:08 PM EDTSpecial Weather StatementRAH52 min
Apr 20, 8:56 PM EDTSpecial Weather StatementRAH49 min
Apr 20, 11:37 PM EDTMesoscale DiscussionSPC53 min
Apr 21, 12:37 AM EDTTornado WatchSPC4 hr
Apr 21, 1:44 AM EDTSpecial Weather StatementRAH61 min
Apr 21, 1:53 AM EDTAreal Flood AdvisoryRAH3 hr
Apr 21, 2:33 AM EDTMesoscale DiscussionSPC87 min
May 9, 4:25 PM EDTSpecial Weather StatementRAH50 min
May 10, 12:16 PM EDTSpecial Weather StatementRAH59 min
May 12, 1:52 PM EDTMesoscale DiscussionSPC2 hr
May 12, 4:54 PM EDTSevere Thunderstorm WarningRAH36 min
Jun 6, 7:17 PM EDTSpecial Weather StatementRAH88 min
Jun 15, 3:11 AM EDTHeat AdvisoryRAH16 hr
Jun 15, 3:11 PM EDTHeat AdvisoryRAH28 hr
Jun 17, 3:40 PM EDTHeat AdvisoryRAH27 hr
Jun 17, 10:18 PM EDTSpecial Weather StatementRAH57 min
Jun 18, 1:32 PM EDTMesoscale DiscussionSPC2 hr
Jun 18, 9:13 PM EDTSpecial Weather StatementRAH62 min
Jun 18, 9:49 PM EDTSpecial Weather StatementRAH56 min
Jun 20, 3:26 PM EDTSevere Thunderstorm WatchSPC10 hr
Jun 20, 6:24 PM EDTMesoscale DiscussionSPC96 min
Jun 20, 8:38 PM EDTSevere Thunderstorm WarningRAH52 min
Jun 20, 9:34 PM EDTSevere Thunderstorm WarningRAH41 min
Jun 20, 10:14 PM EDTMesoscale DiscussionSPC61 min
Jun 20, 10:20 PM EDTSevere Thunderstorm WarningRAH40 min
Jun 20, 11:07 PM EDTSpecial Weather StatementRAH23 min
Jun 21, 4:04 PM EDTHeat AdvisoryRAH27 hr
Jun 22, 4:06 PM EDTHeat AdvisoryRAH27 hr
Jun 25, 4:50 PM EDTSevere Thunderstorm WatchSPC9 hr
Jun 25, 7:53 PM EDTMesoscale DiscussionSPC97 min
Jun 26, 1:31 AM EDTSevere Thunderstorm WarningRAH59 min
Jun 26, 2:33 AM EDTSpecial Weather StatementRAH42 min
Jun 26, 3:13 AM EDTSpecial Weather StatementRAH92 min
Jun 26, 3:29 PM EDTMesoscale DiscussionSPC2 hr
Jun 26, 4:03 PM EDTSevere Thunderstorm WatchSPC6 hr
Jun 27, 2:07 AM EDTFlash Flood WatchRAH20 hr
Jun 27, 6:23 PM EDTMesoscale DiscussionSPC2 hr
Jun 30, 1:38 PM EDTMesoscale DiscussionSPC3 hr
Jun 30, 3:34 PM EDTSevere Thunderstorm WatchSPC6 hr
Jun 30, 4:15 PM EDTMesoscale DiscussionSPC2 hr
Jun 30, 5:27 PM EDTSpecial Weather StatementRAH48 min
Jun 30, 6:46 PM EDTSpecial Weather StatementRAH59 min
Jun 30, 7:17 PM EDTSevere Thunderstorm WarningRAH58 min
Jun 30, 7:22 PM EDTMesoscale DiscussionSPC83 min
Jun 30, 9:20 PM EDTSpecial Weather StatementRAH55 min
Jun 30, 9:25 PM EDTSevere Thunderstorm WarningRAH52 min
Jul 4, 1:14 PM EDTMesoscale DiscussionSPC2 hr
Jul 5, 10:40 PM EDTSpecial Weather StatementRAH65 min
Jul 9, 12:24 AM EDTAreal Flood AdvisoryRAH3 hr
Jul 10, 4:13 PM EDTMesoscale DiscussionSPC2 hr
Jul 11, 12:11 AM EDTSpecial Weather StatementRAH64 min
Jul 11, 12:57 PM EDTMesoscale DiscussionSPC93 min
Jul 18, 3:04 PM EDTSevere Thunderstorm WarningRAH41 min
Jul 18, 3:36 PM EDTSevere Thunderstorm WarningRAH54 min
Jul 19, 3:56 AM EDTHeat AdvisoryRAH15 hr
Jul 19, 4:12 PM EDTHeat AdvisoryRAH27 hr
Jul 20, 3:01 PM EDTHeat AdvisoryRAH28 hr
Jul 21, 7:20 PM EDTMesoscale DiscussionSPC85 min
Aug 6, 5:06 PM EDTSpecial Weather StatementRAH54 min
Aug 6, 5:27 PM EDTSevere Thunderstorm WarningRAH51 min
Aug 6, 5:40 PM EDTSevere Thunderstorm WarningRAH50 min
Aug 6, 6:18 PM EDTAreal Flood AdvisoryRAH3 hr
Aug 7, 5:34 PM EDTAreal Flood AdvisoryRAH3 hr
Aug 13, 7:37 PM EDTSpecial Weather StatementRAH68 min
Aug 31, 11:18 AM EDTAreal Flood AdvisoryRAH57 min
Sep 2, 6:45 PM EDTSpecial Weather StatementRAH60 min
Sep 8, 5:20 AM EDTDense Fog AdvisoryRAH4 hr
Sep 10, 5:42 PM EDTMesoscale DiscussionSPC3 hr
Sep 12, 2:28 PM EDTMesoscale DiscussionSPC2 hr
Sep 29, 3:36 PM EDTSpecial Weather StatementRAH84 min
Sep 30, 3:03 PM EDTFlash Flood WatchRAH5 days
Sep 30, 9:59 PM EDTAreal Flood AdvisoryRAH2 hr
Oct 2, 7:10 AM EDTWind AdvisoryRAH3 days
Oct 3, 6:46 PM EDTSpecial Weather StatementRAH59 min
Oct 17, 2:42 PM EDTFreeze WatchRAH24 hr
Oct 18, 3:06 PM EDTFreeze WarningRAH18 hr
Nov 7, 9:45 AM ESTSpecial Weather StatementRAH60 min
Nov 16, 7:26 AM ESTRiver Flood WarningRAH3 days
Dec 1, 6:14 PM ESTDense Fog AdvisoryRAH16 hr
Dec 8, 1:08 AM ESTDense Fog AdvisoryRAH11 hr
Dec 8, 10:53 PM ESTDense Fog AdvisoryRAH12 hr
Dec 10, 1:56 AM ESTDense Fog AdvisoryRAH4 hr
Dec 13, 5:03 AM ESTDense Fog AdvisoryRAH6 hr
Dec 17, 2:53 PM ESTSpecial Weather StatementRAH37 min
Dec 17, 3:43 PM ESTSpecial Weather StatementRAH62 min
Dec 30, 1:36 PM ESTSpecial Weather StatementRAH24 min
Dec 30, 4:22 PM ESTAreal Flood AdvisoryRAH3 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 archive20142016

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.