Alert archive / North Carolina / Jackson County

Weather alerts in Jackson County, North Carolina, 2009

156 weather alerts in 2009, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Jackson County and its neighbors

Each county as a circle sized by its count in 2009. Tap one for its archive.

Alerts
156
Warnings
35
Watches
27
Advisories
63
Busiest month
June23 alerts
Busiest day
January 7, 20096 alerts

Over time

By month

Warning verification

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

Jackson County, 2009

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings00
Severe thunderstorm warnings15940%6100%20 min
Flash flood warnings2150%50%

Each office's whole area, 2009

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Greenville-Spartanburg, SC: tornado warnings33876%1593%21 min
NWS Greenville-Spartanburg, SC: severe thunderstorm warnings39423740%45786%26 min
NWS Greenville-Spartanburg, SC: flash flood warnings554027%10373%94 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 2, 8:01 AM ESTWinter Weather AdvisoryGSP3 hr
Jan 2, 8:53 PM ESTDense Fog AdvisoryGSP15 hr
Jan 5, 11:13 AM ESTFlash Flood WatchGSP47 hr
Jan 6, 5:37 PM ESTTornado WatchSPC3 hr
Jan 6, 8:19 PM ESTAreal Flood AdvisoryGSP116 min
Jan 6, 9:12 PM ESTLake Wind AdvisoryGSP8 hr
Jan 7, 2:33 AM ESTFlash Flood WarningGSP4 hr
Jan 7, 5:14 AM ESTWind AdvisoryGSP19 hr
Jan 7, 5:39 AM ESTWinter Weather AdvisoryGSP33 hr
Jan 7, 3:09 PM ESTWinter Storm WarningGSP24 hr
Jan 8, 4:33 AM ESTLake Wind AdvisoryGSP22 hr
Jan 13, 2:11 AM ESTWinter Weather AdvisoryGSP25 hr
Jan 15, 2:16 AM ESTLake Wind AdvisoryGSP10 hr
Jan 15, 2:31 AM ESTWind Chill AdvisoryGSP33 hr
Jan 18, 12:10 AM ESTWinter Weather AdvisoryGSP11 hr
Jan 18, 4:13 AM ESTWinter Storm WatchGSP11 hr
Jan 18, 2:56 PM ESTWinter Storm WarningGSP60 hr
Jan 18, 2:56 PM ESTWinter Weather AdvisoryGSP14 hr
Jan 20, 2:16 PM ESTWinter Weather AdvisoryGSP19 hr
Jan 28, 3:57 AM ESTLake Wind AdvisoryGSP14 hr
Jan 30, 2:53 AM ESTLake Wind AdvisoryGSP15 hr
Feb 2, 3:20 AM ESTWinter Storm WatchGSP24 hr
Feb 2, 4:31 PM ESTWinter Storm WarningGSP55 hr
Feb 2, 4:31 PM ESTWinter Weather AdvisoryGSP4 hr
Feb 3, 3:31 AM ESTWinter Weather AdvisoryGSP35 hr
Feb 3, 2:26 PM ESTWind Chill AdvisoryGSP44 hr
Feb 10, 2:51 PM ESTHigh Wind WatchGSP13 hr
Feb 11, 3:22 AM ESTHigh Wind WarningGSP39 hr
Feb 11, 12:17 PM ESTFire Weather WatchGSP18 hr
Feb 11, 2:29 PM ESTMesoscale DiscussionSPC2 hr
Feb 11, 4:08 PM ESTSevere Thunderstorm WatchSPC5 hr
Feb 11, 5:13 PM ESTSevere Thunderstorm WarningGSP62 min
Feb 11, 6:15 PM ESTSevere Thunderstorm WarningGSP60 min
Feb 11, 7:07 PM ESTMesoscale DiscussionSPC53 min
Feb 12, 3:09 AM ESTWind AdvisoryGSP9 hr
Feb 18, 3:10 PM ESTWind AdvisoryGSP29 hr
Feb 19, 5:07 PM ESTLake Wind AdvisoryGSP4 hr
Feb 21, 3:38 PM ESTWinter Weather AdvisoryGSP32 hr
Feb 28, 4:12 AM ESTWinter Storm WatchGSP25 hr
Mar 1, 5:18 AM ESTWinter Storm WarningGSP23 hr
Mar 1, 5:18 AM ESTWinter Weather AdvisoryGSP22 hr
Mar 2, 3:17 AM ESTLake Wind AdvisoryGSP9 hr
Mar 2, 2:45 PM ESTWinter Weather AdvisoryGSP18 hr
Mar 16, 3:16 PM EDTDense Fog AdvisoryGSP18 hr
Mar 27, 4:41 AM EDTDense Fog AdvisoryGSP6 hr
Mar 29, 4:55 AM EDTWind AdvisoryGSP17 hr
Apr 2, 3:06 PM EDTWind AdvisoryGSP27 hr
Apr 2, 11:00 PM EDTMesoscale DiscussionSPC60 min
Apr 2, 11:35 PM EDTSevere Thunderstorm WatchSPC6 hr
Apr 3, 12:50 AM EDTMesoscale DiscussionSPC85 min
Apr 6, 4:06 AM EDTWinter Storm WarningGSP47 hr
Apr 6, 4:06 AM EDTWinter Weather AdvisoryGSP42 hr
Apr 6, 4:17 AM EDTLake Wind AdvisoryGSP16 hr
Apr 8, 3:18 AM EDTLake Wind AdvisoryGSP15 hr
Apr 10, 3:39 PM EDTTornado Watch PDSSPC8 hr
Apr 13, 7:45 AM EDTWind AdvisoryGSP7 hr
Apr 16, 4:03 AM EDTFrost AdvisoryGSP28 hr
Apr 21, 3:41 AM EDTLake Wind AdvisoryGSP16 hr
Apr 22, 8:37 PM EDTFrost AdvisoryGSP7 hr
Apr 25, 2:46 PM EDTMesoscale DiscussionSPC59 min
May 6, 9:35 AM EDTFlood WatchGSP18 hr
May 6, 10:50 AM EDTAreal Flood AdvisoryGSP3 hr
May 6, 11:44 PM EDTMesoscale DiscussionSPC91 min
May 8, 9:17 AM EDTSevere Thunderstorm WarningGSP58 min
May 8, 6:03 PM EDTMesoscale DiscussionSPC87 min
May 8, 6:32 PM EDTTornado WatchSPC7 hr
May 8, 6:50 PM EDTSevere Thunderstorm WarningGSP39 min
May 8, 7:21 PM EDTSevere Thunderstorm WarningGSP39 min
May 8, 8:30 PM EDTMesoscale DiscussionSPC90 min
May 9, 1:47 PM EDTSevere Thunderstorm WarningGSP35 min
May 12, 4:58 AM EDTDense Fog AdvisoryGSP5 hr
May 15, 3:21 PM EDTAreal Flood AdvisoryGSP3 hr
May 15, 6:46 PM EDTAreal Flood AdvisoryGSP3 hr
May 16, 7:06 PM EDTSevere Thunderstorm WarningGSP39 min
May 18, 10:46 AM EDTFrost AdvisoryGSP22 hr
May 26, 3:41 AM EDTFlash Flood WatchGSP38 hr
May 28, 2:21 PM EDTSevere Thunderstorm WatchSPC8 hr
May 28, 4:54 PM EDTMesoscale DiscussionSPC66 min
May 28, 7:34 PM EDTMesoscale DiscussionSPC56 min
Jun 2, 2:11 PM EDTSevere Thunderstorm WarningGSP54 min
Jun 8, 3:24 PM EDTMesoscale DiscussionSPC96 min
Jun 10, 2:31 PM EDTMesoscale DiscussionSPC89 min
Jun 11, 12:18 PM EDTSevere Thunderstorm WatchSPC8 hr
Jun 11, 2:03 PM EDTSevere Thunderstorm WarningGSP87 min
Jun 11, 2:55 PM EDTMesoscale DiscussionSPC65 min
Jun 11, 3:25 PM EDTSevere Thunderstorm WarningGSP65 min
Jun 15, 1:26 PM EDTMesoscale DiscussionSPC64 min
Jun 16, 5:57 PM EDTSevere Thunderstorm WatchSPC7 hr
Jun 17, 12:54 PM EDTSevere Thunderstorm WatchSPC9 hr
Jun 17, 3:17 PM EDTMesoscale DiscussionSPC28 min
Jun 17, 4:07 PM EDTMesoscale DiscussionSPC23 min
Jun 17, 7:22 PM EDTMesoscale DiscussionSPC23 min
Jun 18, 10:39 AM EDTSevere Thunderstorm Watch PDSSPC7 hr
Jun 18, 1:48 PM EDTMesoscale DiscussionSPC57 min
Jun 18, 3:52 PM EDTSevere Thunderstorm WarningGSP51 min
Jun 18, 4:54 PM EDTMesoscale DiscussionSPC66 min
Jun 21, 2:00 PM EDTMesoscale DiscussionSPC90 min
Jun 22, 12:34 PM EDTSevere Thunderstorm WatchSPC7 hr
Jun 22, 3:37 PM EDTMesoscale DiscussionSPC113 min
Jun 27, 2:06 PM EDTMesoscale DiscussionSPC54 min
Jun 27, 4:43 PM EDTMesoscale DiscussionSPC62 min
Jun 27, 7:27 PM EDTMesoscale DiscussionSPC63 min
Aug 4, 6:22 PM EDTSevere Thunderstorm WarningGSP68 min
Aug 4, 6:45 PM EDTMesoscale DiscussionSPC90 min
Aug 5, 2:18 PM EDTSevere Thunderstorm WarningGSP57 min
Aug 11, 1:03 PM EDTMesoscale DiscussionSPC87 min
Sep 9, 12:39 PM EDTMesoscale DiscussionSPC96 min
Sep 9, 12:39 PM EDTMesoscale DiscussionSPC96 min
Sep 9, 2:26 PM EDTSevere Thunderstorm WarningGSP50 min
Sep 12, 4:19 AM EDTDense Fog AdvisoryGSP6 hr
Sep 20, 3:41 AM EDTAreal Flood AdvisoryGSP109 min
Sep 20, 4:30 AM EDTFlash Flood WarningGSP4 hr
Sep 20, 8:14 AM EDTAreal Flood WarningGSP4 hr
Sep 20, 11:59 AM EDTAreal Flood WarningGSP6 hr
Sep 20, 5:32 PM EDTAreal Flood WarningGSP3 hr
Sep 20, 6:19 PM EDTFlood WatchGSP36 hr
Sep 21, 2:46 PM EDTAreal Flood WarningGSP3 hr
Sep 21, 5:25 PM EDTAreal Flood WarningGSP7 hr
Sep 26, 3:35 AM EDTFlash Flood WatchGSP17 hr
Oct 6, 9:29 PM EDTLake Wind AdvisoryGSP19 hr
Oct 9, 7:13 PM EDTMesoscale DiscussionSPC62 min
Oct 9, 8:24 PM EDTSevere Thunderstorm WarningGSP48 min
Oct 13, 4:02 AM EDTFlood WatchGSP30 hr
Oct 16, 4:25 AM EDTFreeze WarningGSP29 hr
Oct 17, 4:09 AM EDTFreeze WarningGSP29 hr
Oct 18, 4:14 AM EDTFreeze WarningGSP29 hr
Oct 23, 1:16 PM EDTLake Wind AdvisoryGSP11 hr
Oct 27, 5:00 AM EDTFlash Flood WatchGSP17 hr
Nov 9, 2:26 AM ESTFlash Flood WatchGSP3 days
Nov 10, 7:27 PM ESTAreal Flood AdvisoryGSP8 hr
Nov 26, 3:54 AM ESTWinter Weather AdvisoryGSP30 hr
Nov 26, 4:00 AM ESTWind AdvisoryGSP47 hr
Nov 27, 1:53 PM ESTLake Wind AdvisoryGSP4 hr
Dec 1, 2:54 PM ESTFlash Flood WatchGSP31 hr
Dec 1, 3:02 PM ESTWind AdvisoryGSP44 hr
Dec 3, 3:44 PM ESTWinter Storm WatchGSP23 hr
Dec 4, 2:48 PM ESTWinter Storm WarningGSP26 hr
Dec 4, 2:48 PM ESTWinter Weather AdvisoryGSP23 hr
Dec 5, 12:18 AM ESTMesoscale DiscussionSPC6 hr
Dec 8, 4:18 AM ESTWind AdvisoryGSP24 hr
Dec 8, 2:31 PM ESTHigh Wind WarningGSP28 hr
Dec 9, 2:48 AM ESTAreal Flood AdvisoryGSP6 hr
Dec 9, 3:52 AM ESTAreal Flood AdvisoryGSP6 hr
Dec 9, 8:27 AM ESTDense Fog AdvisoryGSP93 min
Dec 9, 7:07 PM ESTLake Wind AdvisoryGSP27 hr
Dec 13, 7:18 PM ESTDense Fog AdvisoryGSP17 hr
Dec 16, 5:07 PM ESTWinter Storm WatchGSP24 hr
Dec 17, 3:53 PM ESTWinter Storm WarningGSP3 days
Dec 18, 1:09 PM ESTAreal Flood AdvisoryGSP6 hr
Dec 18, 1:32 PM ESTMesoscale DiscussionSPC4 hr
Dec 19, 2:56 PM ESTWinter Weather AdvisoryGSP21 hr
Dec 23, 3:27 PM ESTWind AdvisoryGSP45 hr
Dec 25, 3:01 AM ESTHigh Wind WarningGSP9 hr
Dec 25, 3:18 PM ESTWinter Weather AdvisoryGSP18 hr
Dec 28, 4:00 AM ESTLake Wind AdvisoryGSP31 hr
Dec 30, 2:48 PM ESTWinter Weather AdvisoryGSP18 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 archive20082010

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.