Weather alerts in Coffee County, Georgia, 2017

161 weather alerts in 2017, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Coffee County and its neighbors

Each county as a circle sized by its count in 2017. Tap one for its archive.

Alerts: 161
Warnings: 46
Watches: 19
Advisories: 34
Busiest month: January46 alerts
Busiest day: January 22, 201725 alerts

Over time

By month

Warning verification

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

0 of 10 tornado warnings covering Coffee County in 2017 had a tornado report inside them; 0 of 1 tornado reports fell inside a warning.

Coffee County, 2017

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
Tornado warnings	10	0	100%	1	0%
Severe thunderstorm warnings	29	10	66%	17	71%	19 min
Flash flood warnings	0			0

Each office's whole area, 2017

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS Jacksonville, FL: tornado warnings	84	5	94%	22	50%	12 min
NWS Jacksonville, FL: severe thunderstorm warnings	299	94	69%	302	65%	20 min
NWS Jacksonville, FL: flash flood warnings	23	13	43%	26	73%	134 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 2, 10:27 PM EST	Tornado Watch	SPC	3 hr
Jan 2, 10:38 PM EST	Special Weather Statement	JAX	37 min
Jan 2, 11:15 PM EST	Severe Thunderstorm Warning	JAX	60 min
Jan 6, 2:50 PM EST	Hard Freeze Watch	JAX	12 hr
Jan 7, 2:45 AM EST	Hard Freeze Watch	JAX	35 hr
Jan 7, 2:45 AM EST	Hard Freeze Warning	JAX	30 hr
Jan 7, 2:50 AM EST	Wind Chill Advisory	JAX	30 hr
Jan 8, 2:10 PM EST	Hard Freeze Warning	JAX	19 hr
Jan 15, 1:09 AM EST	Dense Fog Advisory	JAX	9 hr
Jan 16, 7:32 PM EST	Dense Fog Advisory	JAX	13 hr
Jan 18, 7:53 AM EST	Dense Fog Advisory	JAX	2 hr
Jan 19, 2:40 AM EST	Dense Fog Advisory	JAX	8 hr
Jan 21, 1:06 PM EST	Mesoscale Discussion	SPC	114 min
Jan 21, 1:38 PM EST	Special Weather Statement	JAX	52 min
Jan 21, 1:45 PM EST	Severe Thunderstorm Warning	JAX	45 min
Jan 21, 1:51 PM EST	Tornado Watch	SPC	4 hr
Jan 21, 1:56 PM EST	Special Weather Statement	JAX	64 min
Jan 21, 2:15 PM EST	Severe Thunderstorm Warning	JAX	45 min
Jan 21, 2:57 PM EST	Severe Thunderstorm Warning	JAX	19 min
Jan 21, 3:06 PM EST	Mesoscale Discussion	SPC	84 min
Jan 22, 12:06 AM EST	Mesoscale Discussion	SPC	54 min
Jan 22, 1:47 AM EST	Special Weather Statement	JAX	43 min
Jan 22, 2:31 AM EST	Special Weather Statement	JAX	44 min
Jan 22, 2:48 AM EST	Severe Thunderstorm Warning	JAX	42 min
Jan 22, 2:55 AM EST	Mesoscale Discussion	SPC	65 min
Jan 22, 3:08 AM EST	Wind Advisory	JAX	15 hr
Jan 22, 3:20 AM EST	Tornado Watch	SPC	9 hr
Jan 22, 3:26 AM EST	Special Weather Statement	JAX	49 min
Jan 22, 3:40 AM EST	Severe Thunderstorm Warning	JAX	50 min
Jan 22, 4:00 AM EST	Tornado Warning	JAX	45 min
Jan 22, 4:37 AM EST	Tornado Warning Considerable damage threat	JAX	38 min
Jan 22, 5:07 AM EST	Tornado Warning	JAX	53 min
Jan 22, 5:25 AM EST	Areal Flood Warning	JAX	3 hr
Jan 22, 5:43 AM EST	Tornado Warning	JAX	47 min
Jan 22, 6:32 AM EST	Special Weather Statement	JAX	58 min
Jan 22, 6:34 AM EST	Mesoscale Discussion	SPC	86 min
Jan 22, 6:43 AM EST	Severe Thunderstorm Warning	JAX	47 min
Jan 22, 7:11 AM EST	Mesoscale Discussion	SPC	2 hr
Jan 22, 8:36 AM EST	Flash Flood Watch	JAX	10 hr
Jan 22, 11:25 AM EST	Mesoscale Discussion	SPC	95 min
Jan 22, 12:47 PM EST	Tornado Watch PDS	SPC	7 hr
Jan 22, 4:04 PM EST	Special Weather Statement	JAX	41 min
Jan 22, 4:19 PM EST	Mesoscale Discussion	SPC	86 min
Jan 22, 4:33 PM EST	Severe Thunderstorm Warning	JAX	42 min
Jan 22, 5:13 PM EST	Severe Thunderstorm Warning	JAX	32 min
Jan 23, 1:32 AM EST	Wind Advisory	JAX	16 hr
Feb 2, 3:18 AM EST	Dense Fog Advisory	JAX	7 hr
Feb 3, 7:55 AM EST	Dense Fog Advisory	JAX	88 min
Feb 7, 7:37 PM EST	Severe Thunderstorm Watch	SPC	3 hr
Feb 7, 8:04 PM EST	Severe Thunderstorm Warning	JAX	41 min
Feb 9, 5:26 AM EST	Wind Advisory	JAX	8 hr
Feb 15, 2:24 AM EST	Wind Advisory	JAX	16 hr
Feb 15, 11:23 AM EST	Mesoscale Discussion	SPC	3 hr
Mar 10, 7:24 AM EST	Special Weather Statement	JAX	36 min
Mar 14, 2:35 PM EDT	Hard Freeze Watch	JAX	12 hr
Mar 15, 2:44 AM EDT	Hard Freeze Warning	JAX	30 hr
Mar 16, 2:41 PM EDT	Frost Advisory	JAX	18 hr
Apr 3, 2:07 PM EDT	Tornado Watch	SPC	6 hr
Apr 3, 3:21 PM EDT	Severe Thunderstorm Warning	JAX	39 min
Apr 5, 11:38 AM EDT	Mesoscale Discussion	SPC	97 min
Apr 5, 12:54 PM EDT	Tornado Watch PDS	SPC	10 hr
Apr 5, 2:45 PM EDT	Wind Advisory	JAX	29 hr
Apr 5, 3:12 PM EDT	Mesoscale Discussion	SPC	93 min
Apr 5, 4:08 PM EDT	Severe Thunderstorm Warning	JAX	37 min
Apr 5, 6:29 PM EDT	Mesoscale Discussion	SPC	61 min
Apr 5, 6:33 PM EDT	Severe Thunderstorm Warning	JAX	42 min
Apr 5, 7:19 PM EDT	Special Weather Statement	JAX	26 min
Apr 5, 7:54 PM EDT	Special Weather Statement	JAX	36 min
Apr 5, 8:23 PM EDT	Severe Thunderstorm Warning	JAX	52 min
Apr 5, 8:56 PM EDT	Severe Thunderstorm Warning	JAX	49 min
Apr 6, 3:12 AM EDT	Mesoscale Discussion	SPC	2 hr
May 4, 12:48 PM EDT	Mesoscale Discussion	SPC	2 hr
May 4, 1:08 PM EDT	Severe Thunderstorm Warning	JAX	52 min
May 4, 1:32 PM EDT	Tornado Warning	JAX	28 min
May 4, 2:03 PM EDT	Severe Thunderstorm Warning	JAX	42 min
May 5, 2:57 AM EDT	Wind Advisory	JAX	15 hr
May 13, 12:53 PM EDT	Mesoscale Discussion	SPC	3 hr
May 13, 1:14 PM EDT	Special Weather Statement	JAX	46 min
May 23, 10:10 AM EDT	Tornado Watch	SPC	8 hr
May 23, 12:22 PM EDT	Mesoscale Discussion	SPC	83 min
May 23, 2:02 PM EDT	Mesoscale Discussion	SPC	118 min
May 23, 2:15 PM EDT	Special Weather Statement	JAX	45 min
May 23, 2:21 PM EDT	Severe Thunderstorm Warning	JAX	39 min
May 23, 2:34 PM EDT	Tornado Warning	JAX	26 min
May 23, 2:45 PM EDT	Tornado Watch	SPC	8 hr
May 23, 2:52 PM EDT	Tornado Warning	JAX	23 min
May 23, 3:18 PM EDT	Special Weather Statement	JAX	42 min
May 23, 3:57 PM EDT	Severe Thunderstorm Warning	JAX	48 min
May 23, 4:05 PM EDT	Tornado Warning	JAX	25 min
May 23, 4:28 PM EDT	Tornado Warning	JAX	32 min
May 23, 4:50 PM EDT	Mesoscale Discussion	SPC	85 min
May 23, 6:11 PM EDT	Special Weather Statement	JAX	49 min
May 23, 6:26 PM EDT	Severe Thunderstorm Warning	JAX	49 min
May 23, 6:32 PM EDT	Tornado Warning	JAX	28 min
May 24, 8:29 AM EDT	Mesoscale Discussion	SPC	3 hr
May 24, 11:03 AM EDT	Tornado Watch	SPC	10 hr
May 24, 2:10 PM EDT	Mesoscale Discussion	SPC	95 min
May 24, 5:07 PM EDT	Special Weather Statement	JAX	38 min
May 24, 5:25 PM EDT	Mesoscale Discussion	SPC	65 min
May 24, 5:39 PM EDT	Special Weather Statement	JAX	51 min
May 24, 10:32 PM EDT	Mesoscale Discussion	SPC	58 min
Jun 4, 7:30 PM EDT	Severe Thunderstorm Warning	JAX	19 min
Jun 25, 4:19 PM EDT	Areal Flood Advisory	JAX	116 min
Jun 25, 4:47 PM EDT	Special Weather Statement	JAX	43 min
Jul 9, 7:15 PM EDT	Special Weather Statement	JAX	45 min
Jul 9, 7:38 PM EDT	Severe Thunderstorm Warning	JAX	15 min
Jul 10, 3:03 PM EDT	Special Weather Statement	JAX	42 min
Jul 12, 6:49 PM EDT	Special Weather Statement	JAX	26 min
Jul 13, 4:59 PM EDT	Special Weather Statement	JAX	46 min
Jul 13, 5:28 PM EDT	Severe Thunderstorm Warning	JAX	47 min
Jul 15, 4:05 PM EDT	Special Weather Statement	JAX	40 min
Jul 15, 5:08 PM EDT	Special Weather Statement	JAX	52 min
Jul 16, 2:57 PM EDT	Mesoscale Discussion	SPC	2 hr
Jul 20, 1:44 PM EDT	Mesoscale Discussion	SPC	3 hr
Aug 4, 3:55 PM EDT	Severe Thunderstorm Warning	JAX	31 min
Aug 8, 11:33 PM EDT	Areal Flood Advisory	JAX	87 min
Aug 13, 9:13 PM EDT	Areal Flood Advisory	JAX	2 hr
Aug 24, 8:03 PM EDT	Areal Flood Advisory	JAX	117 min
Aug 25, 6:44 PM EDT	Special Weather Statement	JAX	46 min
Aug 25, 7:47 PM EDT	Special Weather Statement	JAX	43 min
Aug 25, 7:54 PM EDT	Severe Thunderstorm Warning	JAX	51 min
Aug 30, 5:04 PM EDT	Special Weather Statement	JAX	56 min
Aug 30, 5:11 PM EDT	Severe Thunderstorm Warning	JAX	49 min
Aug 30, 5:24 PM EDT	Severe Thunderstorm Warning	JAX	35 min
Aug 30, 5:33 PM EDT	Severe Thunderstorm Warning	JAX	42 min
Aug 30, 5:58 PM EDT	Severe Thunderstorm Warning	JAX	47 min
Aug 31, 1:02 PM EDT	Mesoscale Discussion	SPC	2 hr
Aug 31, 3:20 PM EDT	Special Weather Statement	JAX	40 min
Aug 31, 3:57 PM EDT	Special Weather Statement	JAX	48 min
Aug 31, 8:49 PM EDT	Special Weather Statement	JAX	41 min
Sep 1, 2:20 PM EDT	Special Weather Statement	JAX	40 min
Sep 1, 2:40 PM EDT	Special Weather Statement	JAX	50 min
Sep 6, 2:28 PM EDT	Special Weather Statement	JAX	47 min
Sep 8, 11:05 PM EDT	Flash Flood Watch	JAX	62 hr
Sep 9, 5:22 AM EDT	Tropical Storm Watch	JAX	12 hr
Sep 9, 5:27 PM EDT	Tropical Storm Warning	JAX	48 hr
Sep 11, 5:11 PM EDT	Wind Advisory	JAX	5 hr
Sep 20, 4:21 PM EDT	Special Weather Statement	JAX	39 min
Oct 8, 2:26 PM EDT	Special Weather Statement	JAX	49 min
Oct 8, 2:50 PM EDT	Mesoscale Discussion	SPC	2 hr
Oct 12, 4:58 AM EDT	Dense Fog Advisory	JAX	4 hr
Oct 16, 5:19 AM EDT	Dense Fog Advisory	JAX	4 hr
Oct 23, 11:07 AM EDT	Special Weather Statement	JAX	23 min
Nov 2, 4:09 AM EDT	Dense Fog Advisory	JAX	6 hr
Nov 6, 1:04 AM EST	Dense Fog Advisory	JAX	9 hr
Nov 7, 12:32 AM EST	Dense Fog Advisory	JAX	8 hr
Nov 22, 6:14 AM EST	Dense Fog Advisory	JAX	3 hr
Nov 29, 5:37 AM EST	Dense Fog Advisory	JAX	3 hr
Dec 3, 3:07 AM EST	Dense Fog Advisory	JAX	6 hr
Dec 4, 1:39 AM EST	Dense Fog Advisory	JAX	7 hr
Dec 4, 10:38 PM EST	Dense Fog Advisory	JAX	12 hr
Dec 8, 1:45 PM EST	Freeze Watch	JAX	23 hr
Dec 9, 12:35 PM EST	Freeze Watch	JAX	25 hr
Dec 9, 12:35 PM EST	Freeze Warning	JAX	20 hr
Dec 10, 1:27 PM EST	Freeze Warning	JAX	20 hr
Dec 12, 1:50 AM EST	Freeze Watch	JAX	11 hr
Dec 18, 7:45 PM EST	Dense Fog Advisory	JAX	13 hr
Dec 19, 8:23 PM EST	Dense Fog Advisory	JAX	13 hr
Dec 23, 12:31 AM EST	Dense Fog Advisory	JAX	9 hr
Dec 29, 2:00 PM EST	Frost Advisory	JAX	19 hr
Dec 30, 3:48 AM EST	Dense Fog Advisory	JAX	5 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	29
Tornado Warning	10
Severe Thunderstorm Watch	1
Tornado Watch	9
Mesoscale Discussion	26
Special Weather Statement	36
Flooding
Areal Flood Warning	1
Flash Flood Watch	2
Areal Flood Advisory	4
Cold
Freeze Warning	2
Hard Freeze Warning	3
Freeze Watch	3
Hard Freeze Watch	3
Frost Advisory	2
Wind Chill Advisory	1
Wind and dust
Wind Advisory	7
Fog and smoke
Dense Fog Advisory	20
Tropical
Tropical Storm Warning	1
Tropical Storm Watch	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 2016 2018

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.