Alert archive / North Carolina / Madison County

Weather alerts in Madison County, North Carolina, 2018

118 weather alerts in 2018, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Madison County and its neighbors

Each county as a circle sized by its count in 2018. Tap one for its archive.

Alerts
118
Warnings
20
Watches
14
Advisories
44
Busiest month
June23 alerts
Busiest day
June 24, 20185 alerts

Over time

By month

Warning verification

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

Madison County, 2018

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings00
Severe thunderstorm warnings9811%4100%17 min
Flash flood warnings00

Each office's whole area, 2018

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Greenville-Spartanburg, SC: tornado warnings7186%367%5 min
NWS Greenville-Spartanburg, SC: severe thunderstorm warnings34724430%60087%20 min
NWS Greenville-Spartanburg, SC: flash flood warnings745328%17783%159 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 1, 2:31 AM ESTWind Chill AdvisoryGSP31 hr
Jan 3, 3:47 AM ESTWind Chill AdvisoryGSP48 hr
Jan 4, 3:29 AM ESTWind Chill AdvisoryGSP33 hr
Jan 5, 3:57 AM ESTWind Chill AdvisoryGSP31 hr
Jan 7, 2:51 PM ESTWinter Weather AdvisoryGSP24 hr
Jan 15, 3:32 PM ESTWinter Weather AdvisoryGSP4 days
Jan 17, 4:27 AM ESTWind Chill AdvisoryGSP30 hr
Jan 22, 2:52 AM ESTWind AdvisoryGSP25 hr
Jan 28, 3:23 PM ESTWinter Weather AdvisoryGSP43 hr
Jan 30, 10:07 AM ESTWinter Weather AdvisoryGSP113 min
Feb 1, 4:08 AM ESTWinter Weather AdvisoryGSP29 hr
Feb 3, 3:28 AM ESTWinter Weather AdvisoryGSP33 hr
Feb 9, 3:46 AM ESTFlood WatchGSP3 days
Feb 25, 5:42 AM ESTSpecial Weather StatementGSP63 min
Feb 28, 2:55 PM ESTHigh Wind WatchGSP13 hr
Mar 1, 4:10 AM ESTHigh Wind WarningGSP48 hr
Mar 11, 4:02 AM EDTWinter Storm WarningGSP40 hr
Mar 11, 4:02 AM EDTWinter Weather AdvisoryGSP54 hr
Mar 13, 3:27 AM EDTWinter Weather AdvisoryGSP33 hr
Mar 14, 3:01 PM EDTWind AdvisoryGSP29 hr
Mar 17, 4:33 PM EDTSevere Thunderstorm WatchSPC7 hr
Mar 17, 7:06 PM EDTMesoscale DiscussionSPC114 min
Mar 17, 11:31 PM EDTSpecial Weather StatementGSP29 min
Mar 19, 3:55 PM EDTWinter Storm WatchGSP13 hr
Mar 20, 4:31 AM EDTWinter Storm WarningGSP45 hr
Mar 20, 5:32 AM EDTDense Fog AdvisoryGSP4 hr
Mar 22, 1:14 AM EDTWind AdvisoryGSP10 hr
Mar 23, 3:21 PM EDTWinter Weather AdvisoryGSP37 hr
Mar 24, 5:50 PM EDTSpecial Weather StatementGSP40 min
Apr 4, 2:00 AM EDTMesoscale DiscussionSPC105 min
Apr 4, 2:37 AM EDTSpecial Weather StatementGSP38 min
Apr 4, 3:09 AM EDTSpecial Weather StatementGSP51 min
Apr 10, 2:51 PM EDTFrost AdvisoryGSP18 hr
Apr 15, 3:38 AM EDTFreeze WatchGSP11 hr
Apr 16, 4:13 AM EDTFreeze WarningGSP29 hr
Apr 17, 12:28 AM EDTWind AdvisoryGSP20 hr
Apr 18, 2:50 PM EDTFreeze WatchGSP13 hr
Apr 19, 4:12 AM EDTFreeze WarningGSP29 hr
Apr 20, 7:59 PM EDTFrost AdvisoryGSP13 hr
Apr 23, 3:36 AM EDTWind AdvisoryGSP22 hr
Apr 29, 3:35 AM EDTFrost AdvisoryGSP29 hr
May 5, 4:05 PM EDTSpecial Weather StatementGSP40 min
May 15, 3:20 PM EDTSpecial Weather StatementGSP40 min
May 17, 11:51 PM EDTSpecial Weather StatementGSP84 min
May 18, 11:32 PM EDTAreal Flood AdvisoryGSP4 hr
May 19, 3:45 PM EDTAreal Flood AdvisoryGSP2 hr
May 19, 3:51 PM EDTSpecial Weather StatementGSP24 min
May 19, 11:43 PM EDTSpecial Weather StatementGSP32 min
May 27, 4:44 AM EDTFlash Flood WatchGSP5 days
May 27, 7:12 PM EDTSpecial Weather StatementGSP33 min
May 30, 3:17 AM EDTRiver Flood AdvisoryGSP5 hr
May 30, 8:56 AM EDTRiver Flood WarningGSP38 hr
May 31, 7:39 PM EDTSpecial Weather StatementGSP66 min
May 31, 8:12 PM EDTSpecial Weather StatementGSP48 min
May 31, 8:15 PM EDTSevere Thunderstorm WarningGSP45 min
Jun 3, 3:24 PM EDTMesoscale DiscussionSPC66 min
Jun 3, 4:43 PM EDTSpecial Weather StatementGSP47 min
Jun 10, 5:03 PM EDTSpecial Weather StatementGSP27 min
Jun 10, 5:29 PM EDTSpecial Weather StatementGSP16 min
Jun 17, 2:16 PM EDTSpecial Weather StatementGSP29 min
Jun 17, 2:45 PM EDTSevere Thunderstorm WarningGSP33 min
Jun 23, 5:08 PM EDTSpecial Weather StatementGSP37 min
Jun 24, 3:37 PM EDTSpecial Weather StatementGSP23 min
Jun 24, 3:55 PM EDTSpecial Weather StatementMRX50 min
Jun 24, 3:58 PM EDTSpecial Weather StatementGSP32 min
Jun 24, 5:07 PM EDTSevere Thunderstorm WarningGSP38 min
Jun 24, 7:26 PM EDTSpecial Weather StatementGSP34 min
Jun 25, 12:29 PM EDTMesoscale DiscussionSPC61 min
Jun 25, 1:02 PM EDTSevere Thunderstorm WatchSPC9 hr
Jun 25, 2:45 PM EDTSpecial Weather StatementGSP30 min
Jun 25, 3:15 PM EDTSpecial Weather StatementGSP30 min
Jun 26, 5:12 PM EDTSpecial Weather StatementGSP33 min
Jun 26, 5:36 PM EDTSevere Thunderstorm WarningGSP39 min
Jun 26, 6:18 PM EDTSevere Thunderstorm WarningGSP42 min
Jun 26, 6:49 PM EDTSevere Thunderstorm WarningGSP41 min
Jun 27, 2:29 PM EDTMesoscale DiscussionSPC3 hr
Jul 6, 4:27 PM EDTSpecial Weather StatementGSP33 min
Jul 20, 10:51 PM EDTSevere Thunderstorm WarningGSP54 min
Jul 20, 10:52 PM EDTMesoscale DiscussionSPC53 min
Jul 21, 3:37 PM EDTMesoscale DiscussionSPC2 hr
Jul 31, 3:58 AM EDTFlash Flood WatchGSP4 days
Aug 8, 3:59 PM EDTSpecial Weather StatementGSP46 min
Aug 8, 4:25 PM EDTSevere Thunderstorm WarningGSP65 min
Aug 30, 2:53 PM EDTSevere Thunderstorm WarningGSP26 min
Sep 1, 5:31 PM EDTSpecial Weather StatementGSP29 min
Sep 13, 3:09 PM EDTFlash Flood WatchGSP4 days
Sep 14, 5:36 PM EDTWind AdvisoryGSP48 hr
Sep 16, 6:13 PM EDTWind AdvisoryGSP6 hr
Sep 26, 2:50 PM EDTFlash Flood WatchGSP32 hr
Oct 11, 5:15 PM EDTWind AdvisoryGSP11 hr
Oct 19, 3:13 PM EDTFreeze WatchGSP13 hr
Oct 20, 4:11 AM EDTFreeze WarningGSP30 hr
Oct 20, 4:11 AM EDTWind AdvisoryGSP30 hr
Oct 21, 4:14 AM EDTFreeze WarningGSP30 hr
Oct 28, 10:42 AM EDTWind AdvisoryGSP24 hr
Nov 1, 4:17 AM EDTWind AdvisoryGSP22 hr
Nov 6, 2:40 AM ESTMesoscale DiscussionSPC65 min
Nov 6, 5:52 AM ESTSpecial Weather StatementGSP23 min
Nov 9, 2:51 PM ESTWind AdvisoryGSP22 hr
Nov 27, 3:56 AM ESTWind Chill AdvisoryGSP30 hr
Dec 4, 2:50 PM ESTWinter Weather AdvisoryGSP27 hr
Dec 6, 4:05 PM ESTWinter Storm WatchGSP24 hr
Dec 7, 4:20 AM ESTWinter Storm WarningGSP3 days
Dec 8, 10:54 AM ESTWinter Weather AdvisoryGSP3 days
Dec 8, 10:32 PM ESTMesoscale DiscussionSPC5 hr
Dec 9, 3:08 AM ESTMesoscale DiscussionSPC5 hr
Dec 9, 8:18 AM ESTMesoscale DiscussionSPC5 hr
Dec 11, 3:11 PM ESTWinter Weather AdvisoryGSP21 hr
Dec 20, 3:43 PM ESTWinter Weather AdvisoryGSP42 hr
Dec 26, 3:01 PM ESTFlood WatchGSP52 hr
Dec 26, 3:05 PM ESTWind AdvisoryGSP42 hr
Dec 28, 7:39 AM ESTAreal Flood AdvisoryGSP5 hr
Dec 28, 9:25 AM ESTRiver Flood WarningGSP39 hr
Dec 28, 10:12 AM ESTRiver Flood AdvisoryGSP24 hr
Dec 28, 12:14 PM ESTRiver Flood WarningGSP10 hr
Dec 28, 12:33 PM ESTAreal Flood AdvisoryGSP6 hr
Dec 29, 9:53 AM ESTRiver Flood AdvisoryGSP6 hr
Dec 29, 11:23 PM ESTRiver Flood AdvisoryGSP12 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 archive20172019

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.