Alert archive / Iowa / 2018

Weather alerts in Iowa, December 2018

60 weather alerts in December 2018, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered any part of the state, so the counties below add up to more than the state.

Weather alerts by county

Each county as a circle sized by its count in December 2018. Tap one for its archive.

Alerts: 60
Warnings: 8
Watches: 4
Advisories: 40
Busiest day: December 28, 201811 alerts

Over time

By day

Days in UTC, the clock the archive keeps.

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	Counties	Lasted
Dec 1, 6:56 AM CST	Wind Advisory	DMX	Adair, Adams, Appanoose, Black Hawk, Cass, Clarke and 18 more	7 hr
Dec 1, 7:01 AM CST	Wind Advisory	OAX	Fremont, Mills, Montgomery, Page, Pottawattamie	4 hr
Dec 1, 7:28 AM CST	Wind Advisory	DVN	Benton, Buchanan, Cedar, Clinton, Delaware, Des Moines and 13 more	7 hr
Dec 1, 10:09 AM CST	River Flood Watch	DVN	Lee	24 hr
Dec 1, 11:33 AM CST	Mesoscale Discussion	SPC	Buena Vista, Cherokee, Clay, Dickinson, Emmet, Hancock and 8 more	3 hr
Dec 1, 12:36 PM CST	Dense Fog Advisory	DVN	Cedar, Clinton, Des Moines, Henry, Iowa, Jefferson and 8 more	20 hr
Dec 1, 12:55 PM CST	Dense Fog Advisory	DMX	Appanoose, Clarke, Dallas, Davis, Decatur, Jasper and 12 more	16 hr
Dec 1, 3:52 PM CST	Special Weather Statement	DVN	Louisa	23 min
Dec 1, 4:47 PM CST	Special Weather Statement	DVN	Cedar	28 min
Dec 2, 9:36 AM CST	River Flood Warning	OAX	Fremont	44 hr
Dec 2, 10:10 AM CST	River Flood Warning	DVN	Lee	33 hr
Dec 4, 4:16 AM CST	Winter Weather Advisory	OAX	Harrison, Mills, Pottawattamie	6 hr
Dec 4, 7:19 AM CST	Winter Weather Advisory	DVN	Benton, Buchanan, Cedar, Clinton, Delaware, Des Moines and 11 more	3 hr
Dec 4, 10:08 PM CST	Special Weather Statement	DVN	Scott	82 min
Dec 8, 2:00 AM CST	Dense Fog Advisory	FSD	Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more	10 hr
Dec 8, 2:11 AM CST	Dense Fog Advisory	OAX	Harrison, Monona	8 hr
Dec 10, 12:42 AM CST	Dense Fog Advisory	DVN	Clinton, Des Moines, Jackson, Louisa, Muscatine, Scott	9 hr
Dec 10, 4:15 AM CST	Dense Fog Advisory	ARX	Chickasaw, Floyd, Howard, Mitchell, Winneshiek	6 hr
Dec 11, 12:08 PM CST	Winter Weather Advisory	DVN	Benton, Buchanan, Cedar, Clinton, Delaware, Dubuque and 7 more	21 hr
Dec 11, 2:28 PM CST	Winter Weather Advisory	ARX	Allamakee, Clayton, Fayette, Winneshiek	22 hr
Dec 11, 2:36 PM CST	Winter Weather Advisory	DMX	Black Hawk, Bremer	13 hr
Dec 12, 3:12 PM CST	Dense Fog Advisory	FSD	Clay, Dickinson, Lyon, O'Brien, Osceola, Sioux	17 hr
Dec 12, 8:48 PM CST	Dense Fog Advisory	ARX	Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more	13 hr
Dec 12, 9:52 PM CST	Dense Fog Advisory	DMX	Cerro Gordo, Emmet, Hancock, Kossuth, Palo Alto, Winnebago and 1 more	10 hr
Dec 13, 9:42 AM CST	Dense Fog Advisory	DVN	Des Moines, Louisa, Washington	3 hr
Dec 13, 4:56 PM CST	Dense Fog Advisory	DVN	Des Moines, Henry, Lee, Louisa, Muscatine, Scott	3 hr
Dec 13, 7:07 PM CST	Dense Fog Advisory	DMX	Audubon, Boone, Bremer, Butler, Calhoun, Carroll and 20 more	17 hr
Dec 13, 11:58 PM CST	Dense Fog Advisory	DVN	Cedar, Clinton, Des Moines, Henry, Jackson, Lee and 4 more	9 hr
Dec 14, 1:04 AM CST	Dense Fog Advisory	ARX	Chickasaw, Fayette, Floyd, Howard, Mitchell, Winneshiek	11 hr
Dec 14, 1:06 AM CST	Dense Fog Advisory	FSD	Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more	7 hr
Dec 14, 5:27 AM CST	Dense Fog Advisory	OAX	Fremont, Harrison, Mills, Monona, Montgomery, Page and 2 more	4 hr
Dec 14, 9:17 AM CST	Dense Fog Advisory	OAX	Fremont, Harrison, Mills, Monona, Montgomery, Page and 2 more	93 min
Dec 14, 3:57 PM CST	Dense Fog Advisory	DVN	Clinton, Des Moines, Lee, Louisa, Muscatine, Scott	11 hr
Dec 19, 7:06 AM CST	Dense Fog Advisory	FSD	Lyon	5 hr
Dec 21, 5:01 AM CST	Dense Fog Advisory	FSD	Lyon	5 hr
Dec 25, 6:18 PM CST	Dense Fog Advisory	OAX	Harrison, Monona	10 hr
Dec 25, 8:34 PM CST	Dense Fog Advisory	FSD	Woodbury	6 hr
Dec 26, 3:23 AM CST	Winter Weather Advisory	OAX	Harrison, Monona	57 hr
Dec 26, 3:25 AM CST	Winter Weather Advisory	FSD	Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more	57 hr
Dec 26, 10:19 AM CST	River Flood Watch	DVN	Iowa	58 hr
Dec 26, 12:05 PM CST	Flood Watch	FSD	Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more	31 hr
Dec 27, 2:43 PM CST	Special Weather Statement	DMX	Adair, Guthrie, Madison, Union	62 min
Dec 27, 3:47 PM CST	Special Weather Statement	DMX	Boone, Hamilton	58 min
Dec 27, 6:07 PM CST	Mesoscale Discussion	SPC	Lyon	5 hr
Dec 27, 6:32 PM CST	River Flood Warning	FSD	O'Brien	15 hr
Dec 27, 10:32 PM CST	River Flood Watch	DMX	Black Hawk	36 hr
Dec 28, 12:55 AM CST	Winter Weather Advisory	DMX	Adair, Appanoose, Audubon, Black Hawk, Boone, Bremer and 41 more	11 hr
Dec 28, 2:34 AM CST	Winter Weather Advisory	ARX	Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more	9 hr
Dec 28, 2:50 AM CST	Winter Weather Advisory	DVN	Benton, Buchanan, Cedar, Clinton, Delaware, Dubuque and 10 more	9 hr
Dec 28, 10:24 AM CST	River Flood Warning	FSD	Clay	47 hr
Dec 28, 10:24 AM CST	River Flood Warning	FSD	Clay	58 hr
Dec 28, 10:24 AM CST	River Flood Warning	FSD	Buena Vista, Clay	5 days
Dec 28, 2:37 PM CST	Winter Weather Advisory	DVN	Benton, Buchanan, Cedar, Clinton, Delaware, Dubuque and 10 more	7 hr
Dec 28, 3:53 PM CST	River Flood Warning	FSD	Clay, Dickinson	3 days
Dec 28, 7:58 PM CST	River Flood Warning	DVN	Iowa	38 hr
Dec 30, 2:48 PM CST	Winter Weather Advisory	ARX	Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more	33 hr
Dec 30, 3:03 PM CST	Winter Weather Advisory	DVN	Benton, Buchanan, Cedar, Clinton, Delaware, Dubuque and 6 more	21 hr
Dec 30, 3:33 PM CST	Winter Weather Advisory	FSD	Lyon, Osceola, Sioux	29 hr
Dec 31, 3:26 AM CST	Winter Weather Advisory	DMX	Adair, Adams, Black Hawk, Boone, Bremer, Butler and 30 more	20 hr
Dec 31, 11:50 AM CST	Mesoscale Discussion	SPC	Allamakee, Benton, Black Hawk, Boone, Bremer, Buchanan and 20 more	6 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
Mesoscale Discussion	3
Special Weather Statement	5
Flooding
River Flood Warning	8
Flood Watch	1
River Flood Watch	3
Winter
Winter Weather Advisory	15
Wind and dust
Wind Advisory	3
Fog and smoke
Dense Fog Advisory	22

By county

Every county with at least one alert. A county page lists each alert that covered it.

59 more counties

Nearby

Alerts in force now Tornadoes on record The radar archive 2017 2019

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. Rebuilt daily.