Alert archive / North Carolina / Greene County

Weather alerts in Greene County, North Carolina, 2011

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

Greene County and its neighbors

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

Alerts: 199
Warnings: 31
Watches: 22
Advisories: 27
Busiest month: August40 alerts
Busiest day: April 16, 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.

3 of 7 tornado warnings covering Greene County in 2011 had a tornado report inside them; 3 of 4 tornado reports fell inside a warning, on average 30 minutes after it went out.

Greene County, 2011

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
Tornado warnings	7	3	57%	4	75%	30 min
Severe thunderstorm warnings	14	13	7%	12	67%	23 min
Flash flood warnings	1	0	100%	0

Each office's whole area, 2011

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS Newport/Morehead City, NC: tornado warnings	45	17	62%	27	85%	20 min
NWS Newport/Morehead City, NC: severe thunderstorm warnings	82	55	33%	157	66%	22 min
NWS Newport/Morehead City, NC: flash flood warnings	1	0	100%	0

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
Jan 7, 3:15 AM EST	Winter Weather Advisory	MHX	19 hr
Jan 9, 3:31 PM EST	Winter Weather Advisory	MHX	45 hr
Feb 8, 3:04 PM EST	Winter Storm Watch	MHX	13 hr
Feb 9, 3:40 AM EST	Winter Storm Warning	MHX	31 hr
Feb 18, 9:55 AM EST	Fire Weather Watch	MHX	5 hr
Feb 18, 2:38 PM EST	Red Flag Warning	MHX	30 hr
Feb 24, 3:02 PM EST	Wind Advisory	MHX	30 hr
Mar 6, 12:06 PM EST	Mesoscale Discussion	SPC	84 min
Mar 6, 3:49 PM EST	Mesoscale Discussion	SPC	86 min
Mar 6, 6:01 PM EST	Severe Thunderstorm Warning	MHX	44 min
Mar 6, 6:24 PM EST	Tornado Watch	SPC	4 hr
Mar 6, 8:04 PM EST	Mesoscale Discussion	SPC	56 min
Mar 10, 12:51 PM EST	Mesoscale Discussion	SPC	114 min
Mar 10, 1:25 PM EST	Severe Thunderstorm Watch	SPC	7 hr
Mar 22, 4:39 PM EDT	Fire Weather Watch	MHX	17 hr
Mar 23, 9:10 AM EDT	Red Flag Warning	MHX	11 hr
Mar 28, 4:18 AM EDT	Freeze Watch	MHX	11 hr
Mar 28, 3:03 PM EDT	Freeze Warning	MHX	18 hr
Apr 5, 3:34 AM EDT	Mesoscale Discussion	SPC	116 min
Apr 5, 4:00 AM EDT	Tornado Watch	SPC	6 hr
Apr 5, 4:54 AM EDT	Severe Thunderstorm Warning	MHX	66 min
Apr 5, 5:57 AM EDT	Severe Thunderstorm Warning	MHX	48 min
Apr 5, 7:37 AM EDT	Severe Thunderstorm Warning	MHX	38 min
Apr 5, 10:15 AM EDT	Mesoscale Discussion	SPC	90 min
Apr 5, 11:04 AM EDT	Severe Thunderstorm Warning	MHX	56 min
Apr 5, 7:02 PM EDT	Frost Advisory	MHX	13 hr
Apr 15, 4:52 PM EDT	Wind Advisory	MHX	31 hr
Apr 16, 10:39 AM EDT	Mesoscale Discussion	SPC	2 hr
Apr 16, 12:02 PM EDT	Tornado Watch PDS	SPC	11 hr
Apr 16, 12:16 PM EDT	Mesoscale Discussion	SPC	59 min
Apr 16, 2:28 PM EDT	Mesoscale Discussion	SPC	92 min
Apr 16, 4:49 PM EDT	Mesoscale Discussion	SPC	86 min
Apr 16, 4:50 PM EDT	Tornado Warning	MHX	25 min
Apr 16, 5:24 PM EDT	Tornado Warning	MHX	51 min
Apr 16, 6:13 PM EDT	Tornado Warning	MHX	47 min
Apr 16, 6:38 PM EDT	Tornado Warning	MHX	37 min
Apr 16, 6:59 PM EDT	Mesoscale Discussion	SPC	91 min
Apr 26, 2:16 PM EDT	Mesoscale Discussion	SPC	59 min
Apr 27, 12:51 PM EDT	Mesoscale Discussion	SPC	84 min
Apr 28, 8:48 AM EDT	Tornado Watch	SPC	7 hr
Apr 28, 10:07 AM EDT	Wind Advisory	MHX	12 hr
Apr 28, 11:22 AM EDT	Mesoscale Discussion	SPC	53 min
Apr 28, 2:41 PM EDT	Tornado Watch	SPC	6 hr
Apr 28, 3:29 PM EDT	Tornado Warning	MHX	46 min
Apr 28, 6:33 PM EDT	Mesoscale Discussion	SPC	57 min
May 7, 12:57 AM EDT	Dense Fog Advisory	MHX	7 hr
May 13, 7:21 PM EDT	Severe Thunderstorm Watch	SPC	6 hr
May 14, 3:12 AM EDT	Special Weather Statement	RAH	33 min
May 14, 1:02 PM EDT	Mesoscale Discussion	SPC	118 min
May 14, 1:44 PM EDT	Severe Thunderstorm Watch	SPC	8 hr
May 14, 4:21 PM EDT	Mesoscale Discussion	SPC	84 min
May 14, 4:39 PM EDT	Severe Thunderstorm Warning	MHX	51 min
May 14, 7:32 PM EDT	Mesoscale Discussion	SPC	58 min
May 15, 1:38 PM EDT	Mesoscale Discussion	SPC	2 hr
May 24, 12:15 PM EDT	Mesoscale Discussion	SPC	90 min
May 24, 8:40 PM EDT	Mesoscale Discussion	SPC	65 min
May 24, 10:23 PM EDT	Special Weather Statement	MHX	37 min
May 27, 11:26 AM EDT	Mesoscale Discussion	SPC	94 min
May 27, 3:29 PM EDT	Mesoscale Discussion	SPC	91 min
Jun 10, 9:31 PM EDT	Special Weather Statement	MHX	59 min
Jun 10, 10:29 PM EDT	Special Weather Statement	MHX	46 min
Jun 12, 5:38 PM EDT	Mesoscale Discussion	SPC	67 min
Jun 12, 8:11 PM EDT	Special Weather Statement	MHX	64 min
Jun 12, 9:11 PM EDT	Special Weather Statement	MHX	64 min
Jun 16, 7:06 PM EDT	Special Weather Statement	MHX	39 min
Jun 20, 12:31 AM EDT	Special Weather Statement	MHX	59 min
Jun 20, 2:56 AM EDT	Special Weather Statement	MHX	49 min
Jun 20, 3:01 AM EDT	Severe Thunderstorm Warning	MHX	44 min
Jun 23, 1:40 PM EDT	Mesoscale Discussion	SPC	3 hr
Jun 23, 2:36 PM EDT	Severe Thunderstorm Watch	SPC	6 hr
Jun 23, 4:58 PM EDT	Severe Thunderstorm Warning	MHX	62 min
Jun 23, 5:49 PM EDT	Severe Thunderstorm Warning	MHX	38 min
Jun 24, 1:05 PM EDT	Mesoscale Discussion	SPC	2 hr
Jun 27, 1:15 PM EDT	Mesoscale Discussion	SPC	60 min
Jun 27, 1:34 PM EDT	Severe Thunderstorm Watch	SPC	6 hr
Jun 27, 4:02 PM EDT	Severe Thunderstorm Warning	MHX	43 min
Jun 27, 4:07 PM EDT	Mesoscale Discussion	SPC	83 min
Jun 28, 2:44 PM EDT	Mesoscale Discussion	SPC	91 min
Jun 30, 6:22 AM EDT	Dense Fog Advisory	MHX	3 hr
Jul 4, 6:44 PM EDT	Mesoscale Discussion	SPC	61 min
Jul 4, 9:16 PM EDT	Special Weather Statement	MHX	59 min
Jul 4, 9:20 PM EDT	Special Weather Statement	MHX	55 min
Jul 6, 12:53 PM EDT	Mesoscale Discussion	SPC	97 min
Jul 6, 4:42 PM EDT	Special Weather Statement	MHX	63 min
Jul 6, 5:42 PM EDT	Special Weather Statement	MHX	63 min
Jul 6, 6:05 PM EDT	Areal Flood Advisory	MHX	85 min
Jul 6, 6:05 PM EDT	Severe Thunderstorm Warning	MHX	40 min
Jul 6, 6:24 PM EDT	Areal Flood Advisory	MHX	96 min
Jul 6, 7:36 PM EDT	Special Weather Statement	MHX	54 min
Jul 7, 6:49 PM EDT	Special Weather Statement	MHX	56 min
Jul 7, 7:04 PM EDT	Areal Flood Advisory	MHX	86 min
Jul 7, 8:42 PM EDT	Areal Flood Advisory	MHX	93 min
Jul 7, 9:47 PM EDT	Areal Flood Warning	MHX	118 min
Jul 8, 1:01 PM EDT	Mesoscale Discussion	SPC	89 min
Jul 11, 3:13 PM EDT	Heat Advisory	MHX	28 hr
Jul 12, 3:26 PM EDT	Heat Advisory	MHX	28 hr
Jul 12, 6:48 PM EDT	Mesoscale Discussion	SPC	57 min
Jul 12, 7:37 PM EDT	Special Weather Statement	MHX	38 min
Jul 13, 6:10 PM EDT	Special Weather Statement	MHX	50 min
Jul 13, 7:36 PM EDT	Mesoscale Discussion	SPC	54 min
Jul 20, 2:37 PM EDT	Heat Advisory	MHX	29 hr
Jul 21, 3:52 PM EDT	Heat Advisory	MHX	11 hr
Jul 22, 3:15 AM EDT	Excessive Heat Warning	MHX	64 hr
Jul 22, 5:16 PM EDT	Special Weather Statement	MHX	29 min
Jul 23, 4:59 PM EDT	Special Weather Statement	MHX	46 min
Jul 23, 6:17 PM EDT	Mesoscale Discussion	SPC	88 min
Jul 24, 4:09 PM EDT	Heat Advisory	MHX	25 hr
Jul 24, 5:42 PM EDT	Special Weather Statement	MHX	63 min
Jul 24, 6:34 PM EDT	Mesoscale Discussion	SPC	116 min
Jul 25, 7:23 PM EDT	Mesoscale Discussion	SPC	67 min
Jul 28, 3:30 PM EDT	Heat Advisory	MHX	29 hr
Jul 29, 2:45 PM EDT	Heat Advisory	MHX	29 hr
Jul 30, 2:49 PM EDT	Mesoscale Discussion	SPC	86 min
Jul 31, 1:22 PM EDT	Mesoscale Discussion	SPC	83 min
Jul 31, 3:11 PM EDT	Areal Flood Advisory	MHX	94 min
Aug 3, 3:10 PM EDT	Heat Advisory	MHX	28 hr
Aug 6, 11:44 AM EDT	Special Weather Statement	MHX	61 min
Aug 6, 12:13 PM EDT	Tornado Warning	MHX	19 min
Aug 6, 12:54 PM EDT	Special Weather Statement	MHX	66 min
Aug 6, 3:01 PM EDT	Special Weather Statement	MHX	59 min
Aug 6, 4:00 PM EDT	Heat Advisory	MHX	28 hr
Aug 6, 5:49 PM EDT	Mesoscale Discussion	SPC	116 min
Aug 7, 3:28 PM EDT	Heat Advisory	MHX	29 hr
Aug 7, 8:33 PM EDT	Special Weather Statement	MHX	42 min
Aug 8, 3:38 PM EDT	Heat Advisory	MHX	27 hr
Aug 12, 12:35 PM EDT	Special Weather Statement	MHX	55 min
Aug 12, 12:51 PM EDT	Severe Thunderstorm Warning	MHX	39 min
Aug 12, 1:32 PM EDT	Severe Thunderstorm Warning	MHX	28 min
Aug 12, 1:46 PM EDT	Mesoscale Discussion	SPC	2 hr
Aug 13, 1:33 PM EDT	Mesoscale Discussion	SPC	117 min
Aug 13, 2:30 PM EDT	Special Weather Statement	MHX	45 min
Aug 13, 3:15 PM EDT	Special Weather Statement	MHX	60 min
Aug 14, 6:37 PM EDT	Mesoscale Discussion	SPC	53 min
Aug 14, 9:19 PM EDT	Areal Flood Advisory	MHX	86 min
Aug 14, 11:15 PM EDT	Special Weather Statement	MHX	60 min
Aug 15, 12:10 AM EDT	Special Weather Statement	MHX	65 min
Aug 21, 1:45 PM EDT	Mesoscale Discussion	SPC	90 min
Aug 21, 2:12 PM EDT	Special Weather Statement	MHX	63 min
Aug 21, 4:29 PM EDT	Special Weather Statement	MHX	61 min
Aug 21, 5:24 PM EDT	Special Weather Statement	MHX	66 min
Aug 21, 5:45 PM EDT	Severe Thunderstorm Warning	MHX	45 min
Aug 25, 5:21 AM EDT	Hurricane Local Statement	MHX	7 hr
Aug 25, 9:43 AM EDT	Flood Watch	MHX	60 hr
Aug 25, 12:18 PM EDT	Tropical Storm Watch	MHX	5 hr
Aug 25, 5:00 PM EDT	Hurricane Warning	MHX	61 hr
Aug 26, 7:58 PM EDT	Mesoscale Discussion	SPC	92 min
Aug 26, 11:06 PM EDT	Mesoscale Discussion	SPC	84 min
Aug 27, 9:23 AM EDT	Areal Flood Warning	MHX	12 hr
Aug 27, 12:51 PM EDT	Flash Flood Warning	MHX	6 hr
Aug 27, 4:20 PM EDT	River Flood Warning	MHX	3 days
Aug 29, 11:08 AM EDT	Mesoscale Discussion	SPC	97 min
Aug 29, 2:13 PM EDT	Mesoscale Discussion	SPC	2 hr
Aug 29, 3:28 PM EDT	Severe Thunderstorm Watch	SPC	8 hr
Aug 29, 7:53 PM EDT	Mesoscale Discussion	SPC	67 min
Aug 29, 10:35 PM EDT	Special Weather Statement	MHX	55 min
Sep 5, 5:48 PM EDT	Mesoscale Discussion	SPC	87 min
Sep 6, 5:17 AM EDT	Tornado Watch	SPC	9 hr
Sep 6, 8:35 AM EDT	Mesoscale Discussion	SPC	85 min
Sep 6, 11:15 AM EDT	Special Weather Statement	MHX	30 min
Sep 6, 11:48 AM EDT	Special Weather Statement	MHX	57 min
Sep 6, 12:41 PM EDT	Mesoscale Discussion	SPC	64 min
Sep 6, 12:50 PM EDT	Special Weather Statement	MHX	55 min
Sep 6, 1:32 PM EDT	Tornado Watch	SPC	7 hr
Sep 6, 4:41 PM EDT	Mesoscale Discussion	SPC	64 min
Sep 6, 5:43 PM EDT	Special Weather Statement	MHX	62 min
Sep 6, 7:33 PM EDT	Mesoscale Discussion	SPC	117 min
Sep 7, 4:10 PM EDT	Tornado Warning	MHX	35 min
Sep 7, 4:10 PM EDT	Mesoscale Discussion	SPC	65 min
Sep 12, 2:31 PM EDT	Mesoscale Discussion	SPC	89 min
Sep 15, 8:11 PM EDT	Special Weather Statement	MHX	64 min
Sep 23, 1:56 PM EDT	Special Weather Statement	MHX	64 min
Sep 28, 1:52 PM EDT	Special Weather Statement	MHX	53 min
Sep 28, 2:33 PM EDT	Special Weather Statement	MHX	42 min
Sep 28, 3:11 PM EDT	Special Weather Statement	MHX	64 min
Sep 29, 12:32 AM EDT	Special Weather Statement	MHX	58 min
Sep 30, 1:39 PM EDT	Mesoscale Discussion	SPC	3 hr
Sep 30, 5:32 PM EDT	Mesoscale Discussion	SPC	88 min
Sep 30, 7:13 PM EDT	Special Weather Statement	MHX	62 min
Oct 13, 2:08 PM EDT	Special Weather Statement	RAH	52 min
Oct 13, 2:17 PM EDT	Special Weather Statement	MHX	58 min
Oct 19, 3:46 PM EDT	Mesoscale Discussion	SPC	89 min
Oct 19, 6:26 PM EDT	Mesoscale Discussion	SPC	2 hr
Oct 29, 3:53 AM EDT	Freeze Watch	MHX	10 hr
Oct 29, 2:09 PM EDT	Frost Advisory	MHX	19 hr
Nov 4, 5:30 AM EDT	Special Weather Statement	MHX	90 min
Nov 10, 4:53 AM EST	Dense Fog Advisory	MHX	4 hr
Nov 16, 9:15 PM EST	Special Weather Statement	MHX	60 min
Nov 16, 10:20 PM EST	Mesoscale Discussion	SPC	55 min
Nov 23, 4:18 AM EST	Special Weather Statement	MHX	57 min
Nov 23, 5:08 AM EST	Special Weather Statement	MHX	52 min
Nov 23, 5:23 AM EST	Special Weather Statement	MHX	52 min
Nov 23, 6:03 AM EST	Special Weather Statement	MHX	57 min
Dec 7, 4:56 PM EST	Mesoscale Discussion	SPC	94 min
Dec 7, 5:42 PM EST	Mesoscale Discussion	SPC	33 min
Dec 7, 5:56 PM EST	Special Weather Statement	MHX	64 min
Dec 7, 5:56 PM EST	Severe Thunderstorm Watch	SPC	4 hr
Dec 7, 6:52 PM EST	Special Weather Statement	MHX	53 min
Dec 27, 12:05 PM EST	Mesoscale Discussion	SPC	55 min
Dec 27, 1:15 PM EST	Tornado Watch	SPC	4 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	14
Tornado Warning	7
Severe Thunderstorm Watch	7
Tornado Watch	8
Mesoscale Discussion	64
Special Weather Statement	54
Flooding
Areal Flood Warning	2
Flash Flood Warning	1
River Flood Warning	1
Flood Watch	1
Areal Flood Advisory	6
Winter
Winter Storm Warning	1
Winter Storm Watch	1
Winter Weather Advisory	2
Heat
Excessive Heat Warning	1
Heat Advisory	11
Cold
Freeze Warning	1
Freeze Watch	2
Frost Advisory	2
Wind and dust
Wind Advisory	3
Fire
Red Flag Warning	2
Fire Weather Watch	2
Fog and smoke
Dense Fog Advisory	3
Tropical
Hurricane Warning	1
Tropical Storm Watch	1
Hurricane Local Statement	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.