Weather alerts in Winnebago County, Iowa, 2016

125 weather alerts in 2016, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Winnebago County and its neighbors

Each county as a circle sized by its count in 2016. Tap one for its archive.

Alerts: 125
Warnings: 20
Watches: 23
Advisories: 32
Busiest month: June27 alerts
Busiest day: June 22, 20168 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 reports fell inside a warning.

Winnebago County, 2016

	Warnings	With a report	False alarm ratio	Reports	Inside a warning
Tornado warnings	0			1	0%
Severe thunderstorm warnings	4	0	100%	5	0%
Flash flood warnings	5	3	40%	0

Each office's whole area, 2016

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS Des Moines, IA: tornado warnings	19	11	42%	23	65%	16 min
NWS Des Moines, IA: severe thunderstorm warnings	162	79	51%	246	65%	21 min
NWS Des Moines, IA: flash flood warnings	39	28	28%	64	84%	135 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 8, 9:45 PM CST	Winter Weather Advisory	DMX	6 hr
Jan 9, 3:55 AM CST	Wind Chill Advisory	DMX	32 hr
Jan 11, 3:49 AM CST	Wind Chill Advisory	DMX	32 hr
Jan 11, 8:55 PM CST	Winter Weather Advisory	DMX	7 hr
Jan 15, 3:39 AM CST	Wind Chill Advisory	DMX	32 hr
Jan 16, 3:29 AM CST	Wind Chill Warning	DMX	54 hr
Jan 24, 3:17 PM CST	Winter Weather Advisory	DMX	33 hr
Jan 31, 3:48 AM CST	Blizzard Watch	DMX	25 hr
Feb 1, 4:21 AM CST	Blizzard Warning	DMX	50 hr
Feb 1, 7:17 PM CST	Dense Fog Advisory	DMX	8 hr
Feb 2, 7:50 AM CST	Mesoscale Discussion	SPC	4 hr
Feb 2, 11:35 AM CST	Mesoscale Discussion	SPC	5 hr
Feb 2, 11:19 PM CST	Winter Weather Advisory	DMX	14 hr
Feb 5, 3:50 PM CST	Blizzard Watch	DMX	36 hr
Feb 7, 3:31 AM CST	Blizzard Warning	DMX	38 hr
Feb 7, 11:18 PM CST	Winter Weather Advisory	DMX	34 hr
Feb 12, 3:30 AM CST	Wind Chill Advisory	DMX	29 hr
Feb 13, 3:58 AM CST	Winter Weather Advisory	DMX	34 hr
Feb 18, 3:48 PM CST	Wind Advisory	DMX	26 hr
Feb 19, 8:54 AM CST	High Wind Warning	DMX	6 hr
Feb 29, 3:34 AM CST	Winter Weather Advisory	DMX	28 hr
Mar 13, 10:15 PM CDT	Dense Fog Advisory	DMX	14 hr
Mar 15, 3:37 AM CDT	High Wind Watch	DMX	11 hr
Mar 15, 3:05 PM CDT	High Wind Warning	DMX	22 hr
Mar 15, 3:05 PM CDT	Wind Advisory	DMX	28 hr
Mar 21, 3:54 PM CDT	Winter Storm Watch	DMX	24 hr
Mar 22, 4:00 PM CDT	Winter Storm Warning	DMX	41 hr
Mar 23, 7:15 PM CDT	Mesoscale Discussion	SPC	6 hr
Apr 1, 3:37 PM CDT	Wind Advisory	DMX	24 hr
Apr 5, 2:57 PM CDT	Wind Advisory	DMX	25 hr
Apr 23, 3:37 AM CDT	Dense Fog Advisory	DMX	3 hr
Apr 24, 7:32 PM CDT	Special Weather Statement	DMX	13 min
May 14, 3:41 AM CDT	Frost Advisory	DMX	27 hr
May 23, 1:58 PM CDT	Mesoscale Discussion	SPC	92 min
May 26, 1:41 AM CDT	Severe Thunderstorm Warning	DMX	34 min
May 28, 1:37 PM CDT	Severe Thunderstorm Watch	SPC	7 hr
May 30, 5:14 PM CDT	Mesoscale Discussion	SPC	91 min
Jun 3, 3:06 PM CDT	Mesoscale Discussion	SPC	114 min
Jun 10, 12:02 PM CDT	Mesoscale Discussion	SPC	88 min
Jun 10, 3:19 PM CDT	Severe Thunderstorm Watch	SPC	6 hr
Jun 10, 5:51 PM CDT	Mesoscale Discussion	SPC	114 min
Jun 10, 5:53 PM CDT	Special Weather Statement	DMX	52 min
Jun 10, 8:33 PM CDT	Mesoscale Discussion	SPC	117 min
Jun 10, 8:50 PM CDT	Special Weather Statement	DMX	55 min
Jun 10, 10:18 PM CDT	Special Weather Statement	DMX	42 min
Jun 10, 10:33 PM CDT	Flash Flood Warning	DMX	6 hr
Jun 13, 11:48 AM CDT	Special Weather Statement	DMX	57 min
Jun 14, 10:51 AM CDT	Flash Flood Watch	DMX	10 hr
Jun 14, 11:45 AM CDT	Mesoscale Discussion	SPC	2 hr
Jun 14, 12:43 PM CDT	Severe Thunderstorm Watch	SPC	8 hr
Jun 14, 2:51 PM CDT	Mesoscale Discussion	SPC	114 min
Jun 17, 7:23 PM CDT	Mesoscale Discussion	SPC	2 hr
Jun 21, 3:46 PM CDT	Flash Flood Watch	DMX	17 hr
Jun 21, 11:06 PM CDT	Special Weather Statement	DMX	39 min
Jun 21, 11:18 PM CDT	Severe Thunderstorm Watch	SPC	6 hr
Jun 21, 11:20 PM CDT	Severe Thunderstorm Warning	DMX	40 min
Jun 22, 12:01 AM CDT	Special Weather Statement	DMX	44 min
Jun 22, 12:03 AM CDT	Flash Flood Warning	DMX	6 hr
Jun 22, 1:07 AM CDT	Special Weather Statement	DMX	53 min
Jun 22, 2:25 AM CDT	Severe Thunderstorm Warning	DMX	50 min
Jun 22, 2:31 AM CDT	Mesoscale Discussion	SPC	119 min
Jun 25, 12:50 PM CDT	Mesoscale Discussion	SPC	115 min
Jun 25, 1:52 PM CDT	Mesoscale Discussion	SPC	83 min
Jun 25, 9:57 PM CDT	Mesoscale Discussion	SPC	3 hr
Jul 5, 4:10 PM CDT	Severe Thunderstorm Watch	SPC	7 hr
Jul 5, 7:38 PM CDT	Mesoscale Discussion	SPC	97 min
Jul 7, 12:47 AM CDT	Severe Thunderstorm Watch	SPC	4 hr
Jul 7, 1:58 AM CDT	Special Weather Statement	DMX	47 min
Jul 7, 1:50 PM CDT	Mesoscale Discussion	SPC	115 min
Jul 7, 3:54 PM CDT	Severe Thunderstorm Watch	SPC	5 hr
Jul 10, 3:48 AM CDT	Mesoscale Discussion	SPC	87 min
Jul 11, 3:16 PM CDT	Mesoscale Discussion	SPC	119 min
Jul 11, 3:48 PM CDT	Severe Thunderstorm Watch	SPC	7 hr
Jul 11, 8:43 PM CDT	Mesoscale Discussion	SPC	92 min
Jul 13, 7:34 AM CDT	Mesoscale Discussion	SPC	2 hr
Jul 16, 8:55 PM CDT	Mesoscale Discussion	SPC	95 min
Jul 16, 9:43 PM CDT	Flash Flood Watch	DMX	9 hr
Jul 17, 1:17 AM CDT	Special Weather Statement	DMX	58 min
Jul 17, 1:27 AM CDT	Flash Flood Warning	DMX	6 hr
Jul 18, 3:43 PM CDT	Excessive Heat Watch	DMX	36 hr
Jul 19, 3:36 AM CDT	Flash Flood Watch	DMX	24 hr
Jul 19, 4:24 PM CDT	Excessive Heat Warning	DMX	4 days
Jul 27, 5:15 PM CDT	Mesoscale Discussion	SPC	90 min
Aug 3, 2:58 AM CDT	Dense Fog Advisory	DMX	5 hr
Aug 11, 3:46 AM CDT	Flash Flood Watch	DMX	27 hr
Aug 11, 4:29 AM CDT	Special Weather Statement	DMX	61 min
Aug 11, 6:17 PM CDT	Mesoscale Discussion	SPC	58 min
Aug 16, 3:19 PM CDT	Mesoscale Discussion	SPC	116 min
Aug 16, 7:38 PM CDT	Special Weather Statement	DMX	67 min
Aug 16, 8:20 PM CDT	Severe Thunderstorm Warning	DMX	40 min
Aug 16, 11:14 PM CDT	Special Weather Statement	DMX	31 min
Aug 16, 11:52 PM CDT	Special Weather Statement	DMX	53 min
Aug 19, 4:24 PM CDT	Flash Flood Warning	DMX	6 hr
Aug 23, 2:05 PM CDT	Mesoscale Discussion	SPC	55 min
Aug 23, 9:36 PM CDT	Special Weather Statement	DMX	24 min
Aug 23, 11:45 PM CDT	Special Weather Statement	DMX	60 min
Aug 24, 12:29 AM CDT	Flash Flood Warning	DMX	6 hr
Aug 29, 11:53 AM CDT	Special Weather Statement	DMX	52 min
Sep 5, 11:30 AM CDT	Special Weather Statement	DMX	45 min
Sep 6, 3:28 PM CDT	Flash Flood Watch	DMX	31 hr
Sep 6, 3:47 PM CDT	Mesoscale Discussion	SPC	2 hr
Sep 6, 10:45 PM CDT	Mesoscale Discussion	SPC	60 min
Sep 9, 11:40 AM CDT	Flash Flood Watch	DMX	6 hr
Sep 20, 3:32 PM CDT	Flash Flood Watch	DMX	69 hr
Sep 20, 9:34 PM CDT	Severe Thunderstorm Watch	SPC	5 hr
Sep 21, 2:00 PM CDT	Mesoscale Discussion	SPC	2 hr
Sep 21, 6:01 PM CDT	Mesoscale Discussion	SPC	2 hr
Sep 24, 3:55 PM CDT	Flash Flood Watch	DMX	15 hr
Oct 12, 3:53 AM CDT	Freeze Warning	DMX	29 hr
Nov 15, 3:22 AM CST	Dense Fog Advisory	DMX	7 hr
Nov 17, 3:42 PM CST	Wind Advisory	DMX	38 hr
Nov 27, 2:28 AM CST	Dense Fog Advisory	DMX	7 hr
Dec 9, 11:11 AM CST	Winter Weather Advisory	DMX	40 hr
Dec 10, 2:47 PM CST	Winter Storm Warning	DMX	14 hr
Dec 12, 3:00 PM CST	Wind Chill Advisory	DMX	18 hr
Dec 14, 3:59 AM CST	Wind Chill Advisory	DMX	29 hr
Dec 15, 11:43 AM CST	Winter Storm Warning	DMX	49 hr
Dec 16, 4:33 AM CST	Wind Chill Warning	DMX	55 hr
Dec 18, 12:09 PM CST	Wind Chill Advisory	DMX	16 hr
Dec 22, 2:53 PM CST	Winter Weather Advisory	DMX	27 hr
Dec 23, 3:48 AM CST	Mesoscale Discussion	SPC	6 hr
Dec 24, 1:50 AM CST	Dense Fog Advisory	DMX	26 hr
Dec 24, 3:46 AM CST	Freezing Rain Advisory	DMX	34 hr
Dec 25, 2:34 PM CST	Wind Advisory	DMX	27 hr
Dec 29, 3:40 AM CST	Wind Advisory	DMX	13 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	4
Severe Thunderstorm Watch	9
Mesoscale Discussion	32
Special Weather Statement	18
Flooding
Flash Flood Warning	5
Flash Flood Watch	9
Winter
Blizzard Warning	2
Winter Storm Warning	3
Blizzard Watch	2
Winter Storm Watch	1
Freezing Rain Advisory	1
Winter Weather Advisory	9
Heat
Excessive Heat Warning	1
Excessive Heat Watch	1
Cold
Freeze Warning	1
Wind Chill Warning	2
Frost Advisory	1
Wind Chill Advisory	7
Wind and dust
High Wind Warning	2
High Wind Watch	1
Wind Advisory	7
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 2015 2017

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.