Alert archive / North Carolina / Macon County

Weather alerts in Macon County, North Carolina, 2011

204 weather alerts in 2011, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Macon County and its neighbors

Each county as a circle sized by its count in 2011. Tap one for its archive.

Alerts: 204
Warnings: 54
Watches: 33
Advisories: 48
Busiest month: June52 alerts
Busiest day: May 26, 201110 alerts

Over time

By month

Warning verification

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

2 of 5 tornado warnings covering Macon County in 2011 had a tornado report inside them; 1 of 1 tornado reports fell inside a warning, on average 26 minutes after it went out.

Macon County, 2011

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
Tornado warnings	5	2	60%	1	100%	26 min
Severe thunderstorm warnings	35	30	14%	19	89%	26 min
Flash flood warnings	2	2	0%	1	100%	82 min

Each office's whole area, 2011

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS Greenville-Spartanburg, SC: tornado warnings	42	11	74%	25	96%	21 min
NWS Greenville-Spartanburg, SC: severe thunderstorm warnings	693	551	20%	1,309	89%	26 min
NWS Greenville-Spartanburg, SC: flash flood warnings	31	20	35%	46	85%	105 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.

Issued	Product	Office	Lasted
Dec 31, 8:42 PM EST	Lake Wind Advisory	GSP	20 hr
Jan 5, 12:03 PM EST	Winter Weather Advisory	GSP	23 hr
Jan 6, 3:56 AM EST	Winter Weather Advisory	GSP	59 hr
Jan 8, 3:32 AM EST	Lake Wind Advisory	GSP	14 hr
Jan 8, 4:20 AM EST	Winter Storm Watch	GSP	35 hr
Jan 8, 6:24 PM EST	Wind Chill Advisory	GSP	15 hr
Jan 9, 3:53 AM EST	Winter Storm Warning	GSP	53 hr
Jan 9, 11:56 PM EST	Mesoscale Discussion	SPC	5 hr
Jan 11, 3:47 AM EST	Winter Weather Advisory	GSP	56 hr
Jan 20, 3:01 PM EST	Winter Weather Advisory	GSP	13 hr
Feb 1, 4:35 AM EST	Wind Advisory	GSP	43 hr
Feb 3, 3:22 PM EST	Freezing Rain Advisory	GSP	24 hr
Feb 3, 6:54 PM EST	Winter Weather Advisory	GSP	8 hr
Feb 9, 10:58 AM EST	Winter Weather Advisory	GSP	16 hr
Feb 13, 2:42 PM EST	Fire Weather Watch	GSP	12 hr
Feb 14, 2:17 AM EST	Red Flag Warning	GSP	19 hr
Feb 14, 3:40 AM EST	Wind Advisory	GSP	20 hr
Feb 24, 2:18 PM EST	Lake Wind Advisory	GSP	28 hr
Feb 25, 2:11 AM EST	High Wind Warning	GSP	4 hr
Feb 25, 2:11 AM EST	Lake Wind Advisory	GSP	3 hr
Feb 25, 2:35 AM EST	Mesoscale Discussion	SPC	55 min
Feb 25, 2:57 AM EST	Severe Thunderstorm Warning	GSP	63 min
Feb 25, 4:41 AM EST	Wind Advisory	GSP	13 hr
Feb 27, 8:21 PM EST	Lake Wind Advisory	GSP	23 hr
Feb 28, 3:46 AM EST	Wind Advisory	GSP	14 hr
Feb 28, 1:29 PM EST	Tornado Watch	SPC	7 hr
Feb 28, 3:57 PM EST	Severe Thunderstorm Warning	GSP	63 min
Feb 28, 4:36 PM EST	Mesoscale Discussion	SPC	84 min
Mar 5, 3:31 AM EST	Lake Wind Advisory	GSP	37 hr
Mar 5, 2:49 PM EST	Flood Watch	GSP	24 hr
Mar 6, 2:47 AM EST	Areal Flood Advisory	GSP	103 min
Mar 6, 4:17 AM EST	Flash Flood Warning	GSP	6 hr
Mar 6, 5:28 AM EST	Areal Flood Advisory	GSP	3 hr
Mar 6, 9:49 AM EST	Areal Flood Warning	GSP	3 hr
Mar 6, 12:29 PM EST	Areal Flood Advisory	GSP	3 hr
Mar 8, 2:57 AM EST	Flood Watch	GSP	58 hr
Mar 10, 4:07 AM EST	Lake Wind Advisory	GSP	38 hr
Mar 22, 3:51 PM EDT	Fire Weather Watch	GSP	11 hr
Mar 23, 2:45 AM EDT	Lake Wind Advisory	GSP	24 hr
Mar 23, 2:54 AM EDT	Red Flag Warning	GSP	17 hr
Mar 23, 3:45 PM EDT	Tornado Watch	SPC	6 hr
Mar 23, 4:48 PM EDT	Mesoscale Discussion	SPC	57 min
Mar 23, 7:10 PM EDT	Mesoscale Discussion	SPC	65 min
Mar 23, 8:39 PM EDT	Mesoscale Discussion	SPC	66 min
Mar 23, 9:21 PM EDT	Mesoscale Discussion	SPC	24 min
Mar 23, 9:41 PM EDT	Tornado Watch	SPC	2 hr
Mar 24, 3:09 AM EDT	Freeze Warning	GSP	30 hr
Mar 26, 8:55 PM EDT	Mesoscale Discussion	SPC	95 min
Mar 28, 2:51 PM EDT	Frost Advisory	GSP	18 hr
Mar 31, 4:11 AM EDT	Freeze Warning	GSP	29 hr
Apr 1, 2:51 PM EDT	Wind Advisory	GSP	29 hr
Apr 2, 2:53 PM EDT	Freeze Warning	GSP	18 hr
Apr 3, 2:44 PM EDT	Lake Wind Advisory	GSP	51 hr
Apr 4, 10:41 AM EDT	Wind Advisory	GSP	17 hr
Apr 4, 3:01 PM EDT	Freeze Watch	GSP	13 hr
Apr 4, 4:49 PM EDT	Mesoscale Discussion	SPC	56 min
Apr 4, 4:53 PM EDT	Special Weather Statement	GSP	37 min
Apr 4, 5:37 PM EDT	Special Weather Statement	GSP	38 min
Apr 4, 6:00 PM EDT	Mesoscale Discussion	SPC	90 min
Apr 4, 6:20 PM EDT	Special Weather Statement	GSP	40 min
Apr 4, 7:03 PM EDT	Special Weather Statement	GSP	42 min
Apr 4, 9:45 PM EDT	Severe Thunderstorm Watch	SPC	5 hr
Apr 4, 10:14 PM EDT	Severe Thunderstorm Warning	GSP	61 min
Apr 4, 11:06 PM EDT	Severe Thunderstorm Warning	GSP	54 min
Apr 5, 4:08 AM EDT	Freeze Warning	GSP	29 hr
Apr 6, 4:44 AM EDT	Frost Advisory	GSP	28 hr
Apr 9, 12:34 PM EDT	Severe Thunderstorm Watch	SPC	4 hr
Apr 9, 2:00 PM EDT	Tornado Watch	SPC	7 hr
Apr 9, 3:43 PM EDT	Severe Thunderstorm Warning	GSP	62 min
Apr 9, 4:21 PM EDT	Mesoscale Discussion	SPC	84 min
Apr 11, 7:42 PM EDT	Mesoscale Discussion	SPC	33 min
Apr 11, 8:08 PM EDT	Tornado Watch	SPC	7 hr
Apr 11, 9:23 PM EDT	Mesoscale Discussion	SPC	97 min
Apr 12, 1:21 AM EDT	Lake Wind Advisory	GSP	19 hr
Apr 13, 2:43 PM EDT	Frost Advisory	GSP	18 hr
Apr 15, 4:10 AM EDT	Lake Wind Advisory	GSP	36 hr
Apr 15, 6:21 PM EDT	Special Weather Statement	GSP	39 min
Apr 15, 6:25 PM EDT	Special Weather Statement	GSP	65 min
Apr 15, 6:42 PM EDT	Special Weather Statement	GSP	63 min
Apr 15, 7:02 PM EDT	Special Weather Statement	GSP	43 min
Apr 16, 3:52 PM EDT	Lake Wind Advisory	GSP	14 hr
Apr 16, 3:52 PM EDT	Wind Advisory	GSP	4 hr
Apr 20, 7:55 AM EDT	Severe Thunderstorm Watch	SPC	3 hr
Apr 20, 8:44 AM EDT	Special Weather Statement	GSP	46 min
Apr 20, 8:57 AM EDT	Severe Thunderstorm Warning	GSP	50 min
Apr 25, 5:37 PM EDT	Severe Thunderstorm Warning	GSP	68 min
Apr 26, 11:31 AM EDT	Flash Flood Watch	GSP	11 hr
Apr 27, 3:27 AM EDT	Lake Wind Advisory	GSP	28 hr
Apr 27, 6:41 PM EDT	Mesoscale Discussion	SPC	34 min
Apr 27, 6:52 PM EDT	Tornado Watch PDS	SPC	9 hr
Apr 27, 10:43 PM EDT	Tornado Warning	GSP	47 min
Apr 27, 11:22 PM EDT	Tornado Warning	GSP	38 min
Apr 28, 12:04 AM EDT	Tornado Warning	GSP	41 min
Apr 28, 12:09 AM EDT	Mesoscale Discussion	SPC	36 min
Apr 28, 12:41 AM EDT	Tornado Warning	GSP	34 min
Apr 28, 12:54 AM EDT	Tornado Warning	GSP	51 min
Apr 28, 12:56 AM EDT	Tornado Watch	SPC	4 hr
May 4, 4:17 AM EDT	Frost Advisory	GSP	29 hr
May 4, 4:17 AM EDT	Freeze Warning	GSP	29 hr
May 11, 6:49 PM EDT	Severe Thunderstorm Warning	GSP	56 min
May 13, 1:10 PM EDT	Severe Thunderstorm Watch	SPC	6 hr
May 13, 3:47 PM EDT	Mesoscale Discussion	SPC	58 min
May 22, 4:44 PM EDT	Mesoscale Discussion	SPC	61 min
May 22, 5:40 PM EDT	Severe Thunderstorm Watch	SPC	5 hr
May 22, 6:15 PM EDT	Special Weather Statement	GSP	30 min
May 26, 10:15 AM EDT	Severe Thunderstorm Watch	SPC	9 hr
May 26, 3:32 PM EDT	Mesoscale Discussion	SPC	58 min
May 26, 3:46 PM EDT	Severe Thunderstorm Warning	GSP	59 min
May 26, 4:36 PM EDT	Mesoscale Discussion	SPC	84 min
May 26, 4:43 PM EDT	Severe Thunderstorm Warning	GSP	62 min
May 26, 4:56 PM EDT	Severe Thunderstorm Warning	GSP	64 min
May 26, 5:10 PM EDT	Severe Thunderstorm Watch	SPC	7 hr
May 26, 5:54 PM EDT	Severe Thunderstorm Warning	GSP	51 min
May 26, 6:38 PM EDT	Severe Thunderstorm Warning	GSP	67 min
May 26, 7:20 PM EDT	Severe Thunderstorm Warning	GSP	55 min
Jun 1, 5:14 PM EDT	Severe Thunderstorm Warning	GSP	36 min
Jun 2, 2:45 PM EDT	Severe Thunderstorm Warning	GSP	60 min
Jun 2, 2:50 PM EDT	Mesoscale Discussion	SPC	115 min
Jun 2, 4:52 PM EDT	Special Weather Statement	GSP	38 min
Jun 2, 5:39 PM EDT	Severe Thunderstorm Warning	GSP	49 min
Jun 3, 5:54 PM EDT	Mesoscale Discussion	SPC	2 hr
Jun 5, 5:45 PM EDT	Mesoscale Discussion	SPC	60 min
Jun 6, 4:11 PM EDT	Special Weather Statement	GSP	34 min
Jun 6, 4:40 PM EDT	Severe Thunderstorm Warning	GSP	28 min
Jun 6, 5:42 PM EDT	Special Weather Statement	GSP	48 min
Jun 7, 6:04 PM EDT	Mesoscale Discussion	SPC	116 min
Jun 8, 12:48 PM EDT	Special Weather Statement	GSP	57 min
Jun 8, 2:05 PM EDT	Severe Thunderstorm Warning	GSP	55 min
Jun 8, 3:07 PM EDT	Severe Thunderstorm Warning	GSP	53 min
Jun 8, 3:32 PM EDT	Severe Thunderstorm Warning	GSP	58 min
Jun 9, 1:10 PM EDT	Mesoscale Discussion	SPC	95 min
Jun 9, 1:17 PM EDT	Severe Thunderstorm Warning	GSP	58 min
Jun 9, 2:55 PM EDT	Special Weather Statement	GSP	50 min
Jun 11, 1:48 PM EDT	Mesoscale Discussion	SPC	87 min
Jun 15, 12:52 PM EDT	Severe Thunderstorm Watch	SPC	9 hr
Jun 15, 4:34 PM EDT	Mesoscale Discussion	SPC	116 min
Jun 15, 5:03 PM EDT	Severe Thunderstorm Warning	GSP	57 min
Jun 15, 5:26 PM EDT	Severe Thunderstorm Warning	GSP	38 min
Jun 15, 6:53 PM EDT	Mesoscale Discussion	SPC	97 min
Jun 18, 9:38 AM EDT	Mesoscale Discussion	SPC	97 min
Jun 18, 11:05 AM EDT	Severe Thunderstorm Watch	SPC	9 hr
Jun 18, 1:17 PM EDT	Severe Thunderstorm Warning	GSP	73 min
Jun 18, 1:56 PM EDT	Severe Thunderstorm Warning	GSP	64 min
Jun 18, 2:21 PM EDT	Mesoscale Discussion	SPC	84 min
Jun 18, 2:29 PM EDT	Severe Thunderstorm Warning	GSP	48 min
Jun 19, 1:18 PM EDT	Special Weather Statement	GSP	27 min
Jun 19, 1:45 PM EDT	Special Weather Statement	GSP	30 min
Jun 19, 2:22 PM EDT	Severe Thunderstorm Watch	SPC	5 hr
Jun 19, 4:13 PM EDT	Mesoscale Discussion	SPC	62 min
Jun 19, 9:07 PM EDT	Mesoscale Discussion	SPC	53 min
Jun 19, 9:41 PM EDT	Severe Thunderstorm Watch	SPC	5 hr
Jun 19, 11:14 PM EDT	Severe Thunderstorm Warning	GSP	46 min
Jun 19, 11:55 PM EDT	Severe Thunderstorm Warning	GSP	50 min
Jun 21, 2:08 PM EDT	Severe Thunderstorm Warning	GSP	67 min
Jun 21, 2:11 PM EDT	Mesoscale Discussion	SPC	64 min
Jun 21, 6:03 PM EDT	Mesoscale Discussion	SPC	57 min
Jun 22, 5:38 PM EDT	Severe Thunderstorm Watch	SPC	5 hr
Jun 22, 5:59 PM EDT	Special Weather Statement	GSP	46 min
Jun 22, 6:08 PM EDT	Severe Thunderstorm Warning	GSP	52 min
Jun 22, 6:10 PM EDT	Severe Thunderstorm Warning	GSP	50 min
Jun 24, 1:05 PM EDT	Mesoscale Discussion	SPC	2 hr
Jun 24, 4:42 PM EDT	Mesoscale Discussion	SPC	93 min
Jun 24, 5:14 PM EDT	Special Weather Statement	GSP	46 min
Jun 26, 10:17 AM EDT	Special Weather Statement	GSP	43 min
Jun 26, 10:59 AM EDT	Special Weather Statement	GSP	46 min
Jun 26, 11:34 AM EDT	Mesoscale Discussion	SPC	56 min
Jun 26, 6:29 PM EDT	Mesoscale Discussion	SPC	46 min
Jul 3, 3:43 PM EDT	Special Weather Statement	GSP	32 min
Jul 3, 3:57 PM EDT	Severe Thunderstorm Warning	GSP	33 min
Jul 4, 12:50 PM EDT	Severe Thunderstorm Watch	SPC	7 hr
Jul 5, 3:34 PM EDT	Special Weather Statement	GSP	26 min
Aug 4, 12:35 AM EDT	Severe Thunderstorm Warning	GSP	27 min
Aug 8, 2:34 PM EDT	Severe Thunderstorm Warning	GSP	56 min
Aug 12, 1:46 PM EDT	Mesoscale Discussion	SPC	2 hr
Aug 14, 1:50 PM EDT	Mesoscale Discussion	SPC	55 min
Aug 14, 2:07 PM EDT	Severe Thunderstorm Watch	SPC	7 hr
Aug 18, 2:59 PM EDT	Mesoscale Discussion	SPC	2 hr
Sep 2, 2:31 PM EDT	Mesoscale Discussion	SPC	59 min
Sep 2, 5:35 PM EDT	Special Weather Statement	GSP	25 min
Sep 3, 3:17 PM EDT	Special Weather Statement	GSP	28 min
Sep 3, 4:06 PM EDT	Special Weather Statement	GSP	24 min
Sep 4, 12:33 PM EDT	Flash Flood Watch	GSP	51 hr
Sep 30, 3:22 PM EDT	Lake Wind Advisory	GSP	36 hr
Oct 2, 1:52 PM EDT	Frost Advisory	GSP	20 hr
Oct 3, 3:45 AM EDT	Frost Advisory	GSP	29 hr
Oct 13, 2:47 PM EDT	Lake Wind Advisory	GSP	28 hr
Oct 15, 3:33 AM EDT	Frost Advisory	GSP	29 hr
Oct 19, 3:40 AM EDT	Lake Wind Advisory	GSP	39 hr
Oct 20, 4:03 AM EDT	Freeze Warning	GSP	29 hr
Oct 20, 2:49 PM EDT	Freeze Watch	GSP	24 hr
Oct 21, 2:30 PM EDT	Freeze Warning	GSP	20 hr
Nov 4, 4:21 AM EDT	Lake Wind Advisory	GSP	15 hr
Nov 23, 3:33 AM EST	Lake Wind Advisory	GSP	18 hr
Nov 27, 2:50 PM EST	Flood Watch	GSP	20 hr
Nov 27, 10:23 PM EST	Lake Wind Advisory	GSP	24 hr
Nov 28, 10:55 AM EST	Flood Watch	GSP	16 hr
Nov 28, 12:28 PM EST	Flash Flood Warning	GSP	6 hr
Nov 28, 9:59 PM EST	Winter Weather Advisory	GSP	32 hr
Dec 6, 9:47 PM EST	Winter Weather Advisory	GSP	28 hr
Dec 21, 9:24 PM EST	Dense Fog Advisory	GSP	13 hr
Dec 22, 2:02 PM EST	Mesoscale Discussion	SPC	118 min
Dec 22, 3:20 PM EST	Tornado Watch	SPC	6 hr
Dec 22, 6:25 PM EST	Mesoscale Discussion	SPC	95 min
Dec 27, 3:29 AM EST	Wind Advisory	GSP	27 hr

By product

Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.

Product	Alerts
Severe storms
Severe Thunderstorm Warning	35
Tornado Warning	5
Severe Thunderstorm Watch	14
Tornado Watch	8
Mesoscale Discussion	43
Special Weather Statement	26
Flooding
Areal Flood Warning	1
Flash Flood Warning	2
Flash Flood Watch	2
Flood Watch	4
Areal Flood Advisory	3
Winter
Winter Storm Warning	1
Winter Storm Watch	1
Freezing Rain Advisory	1
Winter Weather Advisory	8
Cold
Freeze Warning	7
Freeze Watch	2
Frost Advisory	7
Wind Chill Advisory	1
Wind and dust
High Wind Warning	1
Lake Wind Advisory	19
Wind Advisory	8
Fire
Red Flag Warning	2
Fire Weather Watch	2
Fog and smoke
Dense Fog Advisory	1

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force now Tornadoes on record Forecast The radar archive 2010 2012

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.