Alert archive / North Carolina / Johnston County

Weather alerts in Johnston County, North Carolina, 2023

168 weather alerts in 2023, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Johnston County and its neighbors

Each county as a circle sized by its count in 2023. Tap one for its archive.

Alerts: 168
Warnings: 56
Watches: 18
Advisories: 38
Busiest month: July33 alerts
Busiest day: August 15, 202314 alerts

Over time

By month

Warning verification

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

1 of 2 tornado warnings covering Johnston County in 2023 had a tornado report inside them.

Johnston County, 2023

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
Tornado warnings	2	1	50%	0
Severe thunderstorm warnings	36	31	14%	28	89%	25 min
Flash flood warnings	2	2	0%	1	100%	11 min

Each office's whole area, 2023

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS Raleigh, NC: tornado warnings	14	2	86%	3	100%	11 min
NWS Raleigh, NC: severe thunderstorm warnings	221	179	19%	513	86%	23 min
NWS Raleigh, NC: flash flood warnings	49	25	49%	90	78%	44 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
Jan 1, 10:18 PM EST	Dense Fog Advisory	RAH	12 hr
Jan 4, 12:40 PM EST	Severe Thunderstorm Warning	RAH	38 min
Jan 4, 1:10 PM EST	Mesoscale Discussion	SPC	95 min
Jan 4, 1:16 PM EST	Special Weather Statement	RAH	59 min
Jan 4, 1:24 PM EST	Tornado Warning	RAH	21 min
Jan 4, 1:28 PM EST	Severe Thunderstorm Warning	RAH	47 min
Jan 9, 5:03 AM EST	Dense Fog Advisory	RAH	3 hr
Jan 12, 9:26 PM EST	Severe Thunderstorm Warning	RAH	49 min
Jan 31, 2:29 AM EST	Dense Fog Advisory	RAH	8 hr
Feb 5, 7:15 PM EST	Dense Fog Advisory	RAH	9 hr
Mar 3, 8:52 AM EST	Wind Advisory	RAH	16 hr
Mar 13, 3:21 AM EDT	Freeze Watch	RAH	25 hr
Mar 13, 3:21 AM EDT	Freeze Warning	RAH	30 hr
Mar 14, 3:55 AM EDT	Freeze Warning	RAH	30 hr
Mar 14, 2:59 PM EDT	Freeze Watch	RAH	12 hr
Mar 15, 3:22 AM EDT	Freeze Warning	RAH	30 hr
Mar 18, 3:30 AM EDT	Freeze Watch	RAH	11 hr
Mar 18, 2:48 PM EDT	Freeze Warning	RAH	43 hr
Mar 19, 3:30 AM EDT	Freeze Watch	RAH	30 hr
Mar 20, 9:27 AM EDT	Freeze Warning	RAH	24 hr
Mar 26, 7:57 AM EDT	Severe Thunderstorm Warning	RAH	29 min
Mar 27, 3:02 AM EDT	Special Weather Statement	RAH	43 min
Mar 31, 12:00 PM EDT	Wind Advisory	RAH	36 hr
Apr 5, 5:14 AM EDT	Dense Fog Advisory	RAH	5 hr
Apr 7, 6:42 AM EDT	Areal Flood Advisory	RAH	2 hr
Apr 9, 6:59 AM EDT	River Flood Warning	RAH	15 hr
Apr 9, 7:32 AM EDT	River Flood Warning	RAH	43 hr
Apr 10, 9:35 AM EDT	Frost Advisory	RAH	23 hr
Apr 14, 1:54 PM EDT	Mesoscale Discussion	SPC	3 hr
Apr 14, 5:52 PM EDT	Special Weather Statement	RAH	53 min
Apr 15, 7:48 AM EDT	River Flood Warning	RAH	20 hr
Apr 15, 8:37 AM EDT	River Flood Warning	RAH	61 hr
Apr 22, 9:34 AM EDT	Mesoscale Discussion	SPC	116 min
Apr 22, 10:07 AM EDT	Severe Thunderstorm Watch	SPC	10 hr
Apr 22, 2:12 PM EDT	Mesoscale Discussion	SPC	93 min
Apr 22, 3:29 PM EDT	Special Weather Statement	RAH	46 min
Apr 22, 5:12 PM EDT	Severe Thunderstorm Warning	RAH	63 min
Apr 23, 9:58 AM EDT	River Flood Warning	RAH	19 hr
Apr 28, 3:59 PM EDT	Mesoscale Discussion	SPC	91 min
Apr 30, 12:37 PM EDT	Mesoscale Discussion	SPC	113 min
Apr 30, 1:52 PM EDT	Severe Thunderstorm Warning	RAH	38 min
Apr 30, 2:00 PM EDT	Special Weather Statement	RAH	45 min
Apr 30, 2:13 PM EDT	Severe Thunderstorm Warning	RAH	47 min
Apr 30, 2:22 PM EDT	Severe Thunderstorm Warning	RAH	53 min
Apr 30, 2:47 PM EDT	Severe Thunderstorm Warning	RAH	43 min
Apr 30, 3:00 PM EDT	Areal Flood Advisory	RAH	3 hr
May 1, 9:35 AM EDT	River Flood Warning	RAH	13 hr
May 9, 1:36 PM EDT	Mesoscale Discussion	SPC	114 min
May 9, 2:57 PM EDT	Severe Thunderstorm Watch	SPC	7 hr
May 9, 3:25 PM EDT	Severe Thunderstorm Warning	RAH	50 min
May 9, 4:52 PM EDT	Mesoscale Discussion	SPC	83 min
May 16, 10:51 PM EDT	Special Weather Statement	RAH	54 min
May 16, 11:04 PM EDT	Severe Thunderstorm Warning	RAH	41 min
May 16, 11:31 PM EDT	Areal Flood Advisory	RAH	3 hr
May 16, 11:42 PM EDT	Severe Thunderstorm Warning	RAH	37 min
May 16, 11:58 PM EDT	Severe Thunderstorm Warning	RAH	47 min
May 17, 12:39 AM EDT	Special Weather Statement	RAH	66 min
Jun 12, 1:17 PM EDT	Mesoscale Discussion	SPC	88 min
Jun 15, 5:32 PM EDT	Special Weather Statement	RAH	43 min
Jun 16, 3:06 PM EDT	Mesoscale Discussion	SPC	2 hr
Jun 16, 6:14 PM EDT	Special Weather Statement	RAH	46 min
Jun 16, 6:34 PM EDT	Special Weather Statement	RAH	56 min
Jun 19, 3:21 PM EDT	Special Weather Statement	RAH	54 min
Jun 20, 10:42 AM EDT	Areal Flood Advisory	RAH	2 hr
Jun 22, 12:27 PM EDT	Special Weather Statement	RAH	63 min
Jun 22, 12:29 PM EDT	Areal Flood Advisory	RAH	3 hr
Jun 22, 1:33 PM EDT	Special Weather Statement	RAH	57 min
Jun 23, 7:18 PM EDT	Special Weather Statement	RAH	57 min
Jun 26, 12:36 PM EDT	Mesoscale Discussion	SPC	2 hr
Jun 26, 4:51 PM EDT	Severe Thunderstorm Watch	SPC	6 hr
Jun 26, 9:29 PM EDT	Mesoscale Discussion	SPC	2 hr
Jun 26, 10:20 PM EDT	Severe Thunderstorm Warning	RAH	55 min
Jun 26, 10:24 PM EDT	Severe Thunderstorm Warning	RAH	51 min
Jun 26, 10:45 PM EDT	Areal Flood Advisory	RAH	3 hr
Jun 26, 10:48 PM EDT	Severe Thunderstorm Watch	SPC	5 hr
Jun 26, 10:53 PM EDT	Severe Thunderstorm Warning	RAH	52 min
Jun 26, 11:31 PM EDT	Severe Thunderstorm Warning	RAH	59 min
Jun 26, 11:51 PM EDT	Special Weather Statement	RAH	69 min
Jun 27, 12:15 AM EDT	Mesoscale Discussion	SPC	2 hr
Jun 27, 10:36 PM EDT	Special Weather Statement	RAH	39 min
Jul 1, 3:26 PM EDT	Heat Advisory	RAH	29 hr
Jul 1, 5:52 PM EDT	Mesoscale Discussion	SPC	53 min
Jul 1, 6:05 PM EDT	Severe Thunderstorm Warning	RAH	40 min
Jul 1, 6:44 PM EDT	Special Weather Statement	RAH	61 min
Jul 1, 7:25 PM EDT	Areal Flood Advisory	RAH	3 hr
Jul 2, 2:28 PM EDT	Severe Thunderstorm Watch	SPC	4 hr
Jul 2, 2:56 PM EDT	Heat Advisory	RAH	29 hr
Jul 3, 1:56 PM EDT	Mesoscale Discussion	SPC	2 hr
Jul 3, 3:19 PM EDT	Mesoscale Discussion	SPC	116 min
Jul 3, 3:35 PM EDT	Heat Advisory	RAH	28 hr
Jul 5, 2:38 PM EDT	Mesoscale Discussion	SPC	2 hr
Jul 5, 2:40 PM EDT	Severe Thunderstorm Warning	RAH	50 min
Jul 5, 2:48 PM EDT	Special Weather Statement	RAH	57 min
Jul 5, 3:06 PM EDT	Areal Flood Advisory	RAH	113 min
Jul 7, 6:37 PM EDT	Severe Thunderstorm Warning	RAH	38 min
Jul 7, 7:39 PM EDT	Areal Flood Advisory	RAH	116 min
Jul 9, 11:23 AM EDT	Mesoscale Discussion	SPC	97 min
Jul 9, 12:03 PM EDT	Severe Thunderstorm Watch	SPC	8 hr
Jul 9, 1:55 PM EDT	Severe Thunderstorm Warning	RAH	35 min
Jul 9, 1:57 PM EDT	Mesoscale Discussion	SPC	93 min
Jul 9, 2:01 PM EDT	Areal Flood Advisory	RAH	97 min
Jul 9, 2:24 PM EDT	Severe Thunderstorm Warning	RAH	51 min
Jul 9, 2:43 PM EDT	Areal Flood Advisory	RAH	111 min
Jul 9, 3:00 PM EDT	Severe Thunderstorm Warning	RAH	45 min
Jul 14, 3:16 AM EDT	Flood Watch	RAH	21 hr
Jul 14, 7:04 AM EDT	Areal Flood Advisory	RAH	3 hr
Jul 14, 1:38 PM EDT	Mesoscale Discussion	SPC	3 hr
Jul 15, 4:20 PM EDT	Special Weather Statement	RAH	55 min
Jul 19, 2:28 PM EDT	Special Weather Statement	RAH	32 min
Jul 19, 2:38 PM EDT	Severe Thunderstorm Warning	RAH	36 min
Jul 24, 12:30 AM EDT	Special Weather Statement	RAH	45 min
Jul 24, 3:25 AM EDT	Special Weather Statement	RAH	50 min
Jul 27, 3:04 PM EDT	Heat Advisory	RAH	53 hr
Aug 6, 3:46 PM EDT	Heat Advisory	RAH	27 hr
Aug 7, 4:30 PM EDT	Severe Thunderstorm Watch	SPC	7 hr
Aug 7, 5:47 PM EDT	Mesoscale Discussion	SPC	118 min
Aug 7, 7:04 PM EDT	Severe Thunderstorm Warning Considerable damage threat	RAH	56 min
Aug 7, 7:53 PM EDT	Severe Thunderstorm Warning	RAH	67 min
Aug 7, 7:59 PM EDT	Mesoscale Discussion	SPC	2 hr
Aug 12, 2:40 PM EDT	Heat Advisory	RAH	29 hr
Aug 13, 3:10 PM EDT	Heat Advisory	RAH	27 hr
Aug 14, 1:55 PM EDT	Mesoscale Discussion	SPC	2 hr
Aug 14, 2:43 PM EDT	Severe Thunderstorm Warning	RAH	47 min
Aug 14, 3:31 PM EDT	Heat Advisory	RAH	26 hr
Aug 15, 3:22 AM EDT	Excessive Heat Warning	RAH	16 hr
Aug 15, 1:28 PM EDT	Mesoscale Discussion	SPC	3 hr
Aug 15, 1:48 PM EDT	Severe Thunderstorm Watch	SPC	7 hr
Aug 15, 3:13 PM EDT	Severe Thunderstorm Warning	RAH	47 min
Aug 15, 3:56 PM EDT	Special Weather Statement	RAH	64 min
Aug 15, 3:56 PM EDT	Mesoscale Discussion	SPC	94 min
Aug 15, 4:38 PM EDT	Severe Thunderstorm Warning	RAH	52 min
Aug 15, 5:08 PM EDT	Areal Flood Advisory	RAH	3 hr
Aug 15, 5:12 PM EDT	Severe Thunderstorm Warning	RAH	48 min
Aug 15, 5:14 PM EDT	Severe Thunderstorm Warning	RAH	46 min
Aug 15, 5:31 PM EDT	Severe Thunderstorm Warning	RAH	44 min
Aug 15, 5:35 PM EDT	Areal Flood Advisory	RAH	2 hr
Aug 15, 6:09 PM EDT	Severe Thunderstorm Warning	RAH	66 min
Aug 15, 6:49 PM EDT	Flash Flood Warning Considerable damage threat	RAH	2 hr
Aug 27, 10:14 AM EDT	Areal Flood Advisory	RAH	98 min
Aug 28, 9:25 PM EDT	Areal Flood Advisory	RAH	3 hr
Aug 29, 2:26 PM EDT	Flood Watch	RAH	43 hr
Aug 31, 1:12 AM EDT	Areal Flood Advisory	RAH	7 hr
Sep 8, 3:03 PM EDT	Special Weather Statement	RAH	42 min
Sep 8, 3:07 PM EDT	Severe Thunderstorm Warning	RAH	38 min
Sep 8, 3:36 PM EDT	Special Weather Statement	RAH	39 min
Sep 8, 4:25 PM EDT	Severe Thunderstorm Warning	RAH	50 min
Sep 12, 3:45 PM EDT	Mesoscale Discussion	SPC	2 hr
Sep 22, 3:40 AM EDT	Flood Watch	RAH	39 hr
Sep 23, 11:47 AM EDT	Flash Flood Warning Considerable damage threat	RAH	5 hr
Oct 7, 2:32 AM EDT	Dense Fog Advisory	RAH	5 hr
Oct 13, 12:28 AM EDT	Dense Fog Advisory	RAH	11 hr
Oct 20, 2:24 PM EDT	Special Weather Statement	RAH	51 min
Oct 20, 5:52 PM EDT	Special Weather Statement	RAH	53 min
Oct 20, 6:51 PM EDT	Severe Thunderstorm Warning	RAH	39 min
Oct 20, 7:28 PM EDT	Special Weather Statement	RAH	62 min
Oct 23, 2:22 PM EDT	Frost Advisory	RAH	19 hr
Oct 31, 4:11 AM EDT	Freeze Watch	RAH	24 hr
Nov 1, 3:53 AM EDT	Freeze Warning	RAH	29 hr
Nov 22, 2:21 AM EST	Special Weather Statement	RAH	54 min
Dec 10, 12:14 PM EST	Tornado Warning	RAH	31 min
Dec 10, 12:36 PM EST	Mesoscale Discussion	SPC	114 min
Dec 10, 1:31 PM EST	Tornado Watch	SPC	8 hr
Dec 17, 3:43 AM EST	Flood Watch	RAH	24 hr
Dec 17, 3:30 PM EST	High Wind Warning	RAH	4 hr
Dec 17, 3:49 PM EST	Areal Flood Advisory	RAH	6 hr
Dec 17, 11:47 PM EST	Areal Flood Advisory	RAH	6 hr
Dec 18, 12:06 AM EST	River Flood Warning	RAH	27 hr
Dec 18, 4:49 AM EST	River Flood Warning	RAH	48 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	36
Tornado Warning	2
Severe Thunderstorm Watch	8
Tornado Watch	1
Mesoscale Discussion	27
Special Weather Statement	29
Flooding
Flash Flood Warning	2
River Flood Warning	8
Flood Watch	4
Areal Flood Advisory	19
Heat
Excessive Heat Warning	1
Heat Advisory	8
Cold
Freeze Warning	6
Freeze Watch	5
Frost Advisory	2
Wind and dust
High Wind Warning	1
Wind Advisory	2
Fog and smoke
Dense Fog Advisory	7

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force now Tornadoes on record Forecast The radar archive 2022 2024

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.