Alert archive / Wisconsin / Marathon County

Weather alerts in Marathon County, Wisconsin, 2019

170 weather alerts in 2019, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Marathon County and its neighbors

Each county as a circle sized by its count in 2019. Tap one for its archive.

Alerts: 170
Warnings: 37
Watches: 19
Advisories: 51
Busiest month: July31 alerts
Busiest day: July 20, 201910 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 1 tornado warnings covering Marathon County in 2019 had a tornado report inside them; 0 of 1 tornado reports fell inside a warning.

Marathon County, 2019

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
Tornado warnings	1	0	100%	1	0%
Severe thunderstorm warnings	13	8	38%	13	62%	40 min
Flash flood warnings	1	0	100%	0

Each office's whole area, 2019

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS Green Bay, WI: tornado warnings	6	3	50%	11	45%	15 min
NWS Green Bay, WI: severe thunderstorm warnings	71	42	41%	166	81%	29 min
NWS Green Bay, WI: flash flood warnings	4	1	75%	7	86%	100 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, Central Time. Each opens its own page with the text, the map, the radar and the sounding.

Issued	Product	Office	Lasted
Jan 6, 2:43 AM CST	Winter Weather Advisory	GRB	32 hr
Jan 12, 8:15 AM CST	Winter Weather Advisory	GRB	6 hr
Jan 14, 12:30 PM CST	Winter Weather Advisory	GRB	16 hr
Jan 15, 4:06 PM CST	Winter Weather Advisory	GRB	7 hr
Jan 21, 3:17 PM CST	Winter Weather Advisory	GRB	48 hr
Jan 24, 3:55 AM CST	Wind Chill Advisory	GRB	32 hr
Jan 25, 1:44 PM CST	Wind Chill Advisory	GRB	20 hr
Jan 26, 3:19 AM CST	Winter Storm Watch	GRB	12 hr
Jan 26, 3:14 PM CST	Wind Chill Advisory	GRB	21 hr
Jan 26, 3:14 PM CST	Winter Storm Warning	GRB	51 hr
Jan 27, 7:04 PM CST	Mesoscale Discussion	SPC	6 hr
Jan 28, 3:03 PM CST	Wind Chill Warning	GRB	69 hr
Jan 28, 3:03 PM CST	Winter Weather Advisory	GRB	27 hr
Jan 31, 11:56 AM CST	Wind Chill Advisory	GRB	6 hr
Feb 2, 3:41 AM CST	Winter Weather Advisory	GRB	32 hr
Feb 3, 11:41 AM CST	Dense Fog Advisory	GRB	24 hr
Feb 3, 2:26 PM CST	Winter Weather Advisory	GRB	24 hr
Feb 5, 3:13 AM CST	Winter Weather Advisory	GRB	24 hr
Feb 5, 10:58 AM CST	Winter Storm Warning	GRB	16 hr
Feb 5, 6:24 PM CST	Mesoscale Discussion	SPC	6 hr
Feb 6, 3:47 AM CST	Winter Storm Watch	GRB	11 hr
Feb 6, 2:35 PM CST	Winter Storm Warning	GRB	33 hr
Feb 7, 2:56 PM CST	Wind Chill Advisory	GRB	42 hr
Feb 9, 2:44 PM CST	Winter Weather Advisory	GRB	33 hr
Feb 10, 3:20 PM CST	Winter Storm Watch	GRB	12 hr
Feb 11, 3:46 AM CST	Winter Storm Warning	GRB	47 hr
Feb 19, 10:47 AM CST	Winter Weather Advisory	GRB	34 hr
Feb 22, 3:27 AM CST	Winter Storm Watch	GRB	25 hr
Feb 22, 2:29 PM CST	Winter Weather Advisory	GRB	22 hr
Feb 23, 4:19 AM CST	Winter Storm Warning	GRB	41 hr
Feb 23, 8:52 PM CST	Mesoscale Discussion	SPC	5 hr
Feb 24, 3:58 AM CST	Blizzard Warning	GRB	17 hr
Feb 24, 8:56 PM CST	Winter Weather Advisory	GRB	13 hr
Feb 26, 3:00 AM CST	Winter Weather Advisory	GRB	33 hr
Mar 1, 11:18 AM CST	Winter Weather Advisory	GRB	16 hr
Mar 2, 3:17 AM CST	Wind Chill Advisory	GRB	30 hr
Mar 3, 9:08 AM CST	Wind Chill Advisory	GRB	27 hr
Mar 4, 2:35 PM CST	Wind Chill Advisory	GRB	18 hr
Mar 8, 2:33 PM CST	Winter Weather Advisory	GRB	45 hr
Mar 9, 5:59 PM CST	Mesoscale Discussion	SPC	5 hr
Mar 12, 2:43 PM CDT	Flood Watch	GRB	61 hr
Mar 13, 8:53 AM CDT	Dense Fog Advisory	GRB	4 hr
Mar 14, 8:08 AM CDT	Dense Fog Advisory	GRB	11 hr
Mar 14, 4:02 PM CDT	Areal Flood Advisory	GRB	4 hr
Mar 14, 8:05 PM CDT	Areal Flood Advisory	GRB	4 hr
Mar 14, 11:58 PM CDT	Areal Flood Advisory	GRB	3 hr
Mar 25, 2:49 AM CDT	River Flood Warning	GRB	21 days
Apr 7, 9:08 PM CDT	Dense Fog Advisory	GRB	10 hr
Apr 9, 4:08 AM CDT	River Flood Warning	GRB	21 days
Apr 9, 4:15 AM CDT	Winter Storm Watch	GRB	25 hr
Apr 10, 4:55 AM CDT	Winter Weather Advisory	GRB	53 hr
Apr 10, 3:27 PM CDT	Winter Storm Warning	GRB	34 hr
Apr 17, 5:22 AM CDT	River Flood Warning	GRB	9 days
Apr 17, 6:45 PM CDT	Special Weather Statement	GRB	60 min
Apr 17, 7:41 PM CDT	Areal Flood Advisory	GRB	2 hr
Apr 17, 8:07 PM CDT	Areal Flood Advisory	GRB	2 hr
Apr 17, 10:07 PM CDT	River Flood Warning	GRB	71 hr
Apr 17, 10:07 PM CDT	River Flood Warning	GRB	3 days
Apr 17, 10:07 PM CDT	River Flood Warning	GRB	27 hr
Apr 17, 10:07 PM CDT	River Flood Warning	GRB	14 hr
Apr 18, 11:06 AM CDT	River Flood Warning	GRB	8 days
Apr 21, 3:23 AM CDT	Flood Watch	GRB	48 hr
May 20, 3:39 AM CDT	River Flood Warning	GRB	55 hr
May 31, 3:06 PM CDT	Mesoscale Discussion	SPC	114 min
May 31, 6:04 PM CDT	Special Weather Statement	GRB	41 min
May 31, 8:28 PM CDT	Special Weather Statement	GRB	47 min
May 31, 11:39 PM CDT	Special Weather Statement	GRB	51 min
Jun 4, 8:40 PM CDT	Special Weather Statement	GRB	65 min
Jun 10, 5:31 PM CDT	Special Weather Statement	GRB	44 min
Jun 27, 12:23 PM CDT	Severe Thunderstorm Watch	SPC	6 hr
Jun 27, 1:55 PM CDT	Mesoscale Discussion	SPC	95 min
Jun 27, 2:18 PM CDT	Special Weather Statement	GRB	72 min
Jun 27, 10:43 PM CDT	Special Weather Statement	GRB	62 min
Jun 27, 11:42 PM CDT	Special Weather Statement	GRB	33 min
Jun 28, 12:18 AM CDT	Special Weather Statement	GRB	42 min
Jun 30, 8:01 AM CDT	Special Weather Statement	GRB	89 min
Jun 30, 8:32 AM CDT	Special Weather Statement	GRB	58 min
Jun 30, 9:03 AM CDT	Special Weather Statement	GRB	57 min
Jul 5, 11:56 PM CDT	Special Weather Statement	GRB	94 min
Jul 6, 1:11 AM CDT	Areal Flood Advisory	GRB	3 hr
Jul 12, 12:35 PM CDT	Mesoscale Discussion	SPC	85 min
Jul 12, 4:58 PM CDT	Mesoscale Discussion	SPC	92 min
Jul 15, 1:57 PM CDT	Mesoscale Discussion	SPC	93 min
Jul 15, 7:15 PM CDT	Mesoscale Discussion	SPC	90 min
Jul 15, 8:25 PM CDT	Special Weather Statement	GRB	80 min
Jul 15, 9:33 PM CDT	Special Weather Statement	GRB	72 min
Jul 18, 4:02 AM CDT	Special Weather Statement	GRB	43 min
Jul 18, 4:44 AM CDT	Special Weather Statement	GRB	76 min
Jul 18, 9:15 AM CDT	Heat Advisory	GRB	34 hr
Jul 19, 5:15 PM CDT	Mesoscale Discussion	SPC	90 min
Jul 19, 5:55 PM CDT	Severe Thunderstorm Watch PDS	SPC	6 hr
Jul 19, 6:47 PM CDT	Special Weather Statement	GRB	43 min
Jul 19, 7:17 PM CDT	Severe Thunderstorm Warning	GRB	73 min
Jul 19, 8:12 PM CDT	Severe Thunderstorm Warning	GRB	63 min
Jul 19, 8:23 PM CDT	Severe Thunderstorm Warning	GRB	52 min
Jul 19, 8:26 PM CDT	Tornado Warning	GRB	34 min
Jul 19, 8:26 PM CDT	Mesoscale Discussion	SPC	94 min
Jul 20, 8:00 AM CDT	Flash Flood Watch	GRB	7 hr
Jul 20, 9:05 AM CDT	Severe Thunderstorm Watch	SPC	7 hr
Jul 20, 9:51 AM CDT	Severe Thunderstorm Warning	GRB	54 min
Jul 20, 9:53 AM CDT	Flash Flood Warning	GRB	5 hr
Jul 20, 10:34 AM CDT	Severe Thunderstorm Warning	GRB	56 min
Jul 23, 1:17 PM CDT	Special Weather Statement	GRB	58 min
Jul 23, 3:42 PM CDT	Special Weather Statement	GRB	48 min
Jul 28, 6:35 PM CDT	Mesoscale Discussion	SPC	85 min
Jul 28, 8:40 PM CDT	Special Weather Statement	GRB	50 min
Jul 28, 9:07 PM CDT	Special Weather Statement	GRB	53 min
Jul 28, 9:17 PM CDT	Special Weather Statement	GRB	43 min
Jul 28, 9:52 PM CDT	Special Weather Statement	GRB	38 min
Aug 3, 4:30 PM CDT	Special Weather Statement	GRB	45 min
Aug 5, 9:34 AM CDT	Mesoscale Discussion	SPC	116 min
Aug 5, 11:49 AM CDT	Mesoscale Discussion	SPC	116 min
Aug 5, 1:18 PM CDT	Mesoscale Discussion	SPC	117 min
Aug 5, 1:45 PM CDT	Severe Thunderstorm Watch	SPC	8 hr
Aug 5, 2:08 PM CDT	Severe Thunderstorm Warning	GRB	67 min
Aug 5, 3:13 PM CDT	Special Weather Statement	GRB	47 min
Aug 5, 4:21 PM CDT	Severe Thunderstorm Warning	GRB	39 min
Aug 5, 4:57 PM CDT	Severe Thunderstorm Warning	GRB	63 min
Aug 5, 5:26 PM CDT	Areal Flood Advisory	GRB	86 min
Aug 5, 5:35 PM CDT	Severe Thunderstorm Warning	GRB	55 min
Aug 6, 12:40 AM CDT	Dense Fog Advisory	GRB	8 hr
Aug 7, 1:09 PM CDT	Mesoscale Discussion	SPC	2 hr
Aug 7, 5:41 PM CDT	Special Weather Statement	GRB	49 min
Aug 7, 6:23 PM CDT	Severe Thunderstorm Warning	GRB	52 min
Aug 12, 3:34 AM CDT	Dense Fog Advisory	GRB	5 hr
Aug 18, 7:44 AM CDT	Special Weather Statement	GRB	61 min
Aug 27, 12:31 PM CDT	Mesoscale Discussion	SPC	119 min
Aug 27, 5:04 PM CDT	Special Weather Statement	GRB	56 min
Aug 29, 10:22 AM CDT	Special Weather Statement	GRB	38 min
Sep 2, 11:39 PM CDT	Mesoscale Discussion	SPC	2 hr
Sep 3, 12:24 AM CDT	Special Weather Statement	GRB	51 min
Sep 3, 1:04 AM CDT	Special Weather Statement	GRB	41 min
Sep 3, 1:17 AM CDT	Severe Thunderstorm Warning	GRB	43 min
Sep 5, 3:27 PM CDT	Special Weather Statement	GRB	48 min
Sep 5, 4:16 PM CDT	Special Weather Statement	GRB	44 min
Sep 9, 9:39 PM CDT	Special Weather Statement	GRB	66 min
Sep 11, 8:30 AM CDT	Areal Flood Advisory	GRB	3 hr
Sep 12, 2:19 AM CDT	Flash Flood Watch	GRB	25 hr
Sep 15, 8:49 PM CDT	Dense Fog Advisory	GRB	13 hr
Sep 20, 12:39 AM CDT	Dense Fog Advisory	GRB	9 hr
Sep 24, 6:52 PM CDT	Mesoscale Discussion	SPC	53 min
Sep 24, 7:17 PM CDT	Tornado Watch	SPC	4 hr
Sep 24, 9:01 PM CDT	Mesoscale Discussion	SPC	119 min
Sep 24, 9:21 PM CDT	Severe Thunderstorm Warning	GRB	24 min
Sep 24, 9:39 PM CDT	Severe Thunderstorm Warning	GRB	51 min
Sep 24, 10:48 PM CDT	Mesoscale Discussion	SPC	117 min
Sep 30, 11:49 AM CDT	Special Weather Statement	GRB	56 min
Oct 1, 5:50 AM CDT	Special Weather Statement	GRB	55 min
Oct 10, 2:31 PM CDT	Freeze Watch	GRB	13 hr
Oct 11, 3:32 AM CDT	Freeze Warning	GRB	29 hr
Oct 15, 10:44 AM CDT	Special Weather Statement	GRB	46 min
Oct 15, 11:29 AM CDT	Special Weather Statement	GRB	46 min
Oct 28, 3:06 PM CDT	Winter Weather Advisory	GRB	15 hr
Nov 12, 7:31 PM CST	River Flood Warning	GRB	16 hr
Nov 19, 6:40 PM CST	Dense Fog Advisory	GRB	14 hr
Nov 24, 2:22 PM CST	Winter Storm Watch	GRB	24 hr
Nov 25, 2:17 PM CST	Winter Storm Warning	GRB	52 hr
Nov 29, 3:51 AM CST	Winter Storm Watch	GRB	18 hr
Nov 29, 2:48 PM CST	Winter Storm Warning	GRB	54 hr
Dec 8, 2:55 AM CST	Winter Weather Advisory	GRB	41 hr
Dec 9, 11:18 AM CST	Mesoscale Discussion	SPC	4 hr
Dec 10, 3:19 AM CST	Wind Chill Advisory	GRB	33 hr
Dec 11, 3:12 AM CST	Winter Weather Advisory	GRB	39 hr
Dec 17, 2:28 PM CST	Wind Chill Advisory	GRB	18 hr
Dec 24, 2:29 PM CST	Dense Fog Advisory	GRB	45 hr
Dec 27, 10:52 AM CST	Flood Watch	GRB	67 hr
Dec 28, 2:30 AM CST	Winter Weather Advisory	GRB	31 hr
Dec 29, 2:54 AM CST	Winter Storm Watch	GRB	12 hr
Dec 29, 2:52 PM CST	Winter Storm Warning	GRB	33 hr
Dec 29, 6:03 PM CST	Dense Fog Advisory	GRB	9 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	13
Tornado Warning	1
Severe Thunderstorm Watch	4
Tornado Watch	1
Mesoscale Discussion	23
Special Weather Statement	40
Flooding
Flash Flood Warning	1
River Flood Warning	10
Flash Flood Watch	2
Flood Watch	3
Areal Flood Advisory	8
Winter
Blizzard Warning	1
Winter Storm Warning	9
Winter Storm Watch	8
Winter Weather Advisory	21
Heat
Heat Advisory	1
Cold
Freeze Warning	1
Wind Chill Warning	1
Freeze Watch	1
Wind Chill Advisory	10
Fog and smoke
Dense Fog Advisory	11

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force now Tornadoes on record Forecast The radar archive 2018 2020

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.