Winter Weather Advisories in Iowa, 2021

Winter Weather Advisories by county

Each county as a circle sized by its count in 2021. Tap one for its archive.

Over time

By month

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
Jan 5, 2:26 PM CST	Winter Weather Advisory	FSD	Lyon, Plymouth, Sioux, Woodbury	24 hr
Jan 5, 3:31 PM CST	Winter Weather Advisory	OAX	Harrison, Monona	32 hr
Jan 13, 2:42 PM CST	Winter Weather Advisory	ARX	Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more	42 hr
Jan 13, 2:53 PM CST	Winter Weather Advisory	DVN	Benton, Buchanan, Delaware, Dubuque, Iowa, Jackson and 5 more	44 hr
Jan 13, 3:49 PM CST	Winter Weather Advisory	DMX	Adair, Adams, Audubon, Black Hawk, Boone, Bremer and 35 more	50 hr
Jan 14, 4:04 AM CST	Winter Weather Advisory	DMX	Appanoose, Davis, Jasper, Lucas, Mahaska, Marion and 4 more	32 hr
Jan 14, 2:55 PM CST	Winter Weather Advisory	FSD	Lyon	31 hr
Jan 15, 2:10 PM CST	Winter Weather Advisory	OAX	Fremont, Harrison, Mills, Monona, Montgomery, Page and 2 more	5 hr
Jan 15, 2:19 PM CST	Winter Weather Advisory	FSD	Buena Vista, Cherokee, Clay, Dickinson, Ida, O'Brien and 4 more	8 hr
Jan 16, 8:33 PM CST	Winter Weather Advisory	DVN	Benton, Buchanan, Cedar, Clinton, Delaware, Des Moines and 10 more	15 hr
Jan 16, 9:25 PM CST	Winter Weather Advisory	ARX	Allamakee, Clayton, Fayette, Winneshiek	15 hr
Jan 19, 4:59 AM CST	Winter Weather Advisory	DVN	Benton, Cedar, Clinton, Des Moines, Henry, Iowa and 10 more	5 hr
Jan 19, 2:42 PM CST	Winter Weather Advisory	DMX	Black Hawk, Boone, Bremer, Butler, Calhoun, Cerro Gordo and 23 more	4 hr
Jan 19, 5:03 PM CST	Winter Weather Advisory	DVN	Benton, Buchanan, Cedar, Clinton, Delaware, Dubuque and 7 more	4 hr
Jan 22, 4:05 AM CST	Winter Weather Advisory	FSD	Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more	44 hr
Jan 22, 2:01 PM CST	Winter Weather Advisory	DMX	Bremer, Butler, Cerro Gordo, Emmet, Franklin, Hancock and 7 more	37 hr
Jan 22, 2:15 PM CST	Winter Weather Advisory	ARX	Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more	43 hr
Jan 24, 1:17 PM CST	Winter Weather Advisory	OAX	Monona	15 hr
Jan 24, 2:43 PM CST	Winter Weather Advisory	DVN	Buchanan, Delaware, Des Moines, Henry, Jefferson, Lee and 1 more	45 hr
Jan 24, 3:24 PM CST	Winter Weather Advisory	DMX	Black Hawk, Boone, Carroll, Crawford, Greene, Grundy and 2 more	13 hr
Jan 25, 3:21 AM CST	Winter Weather Advisory	ARX	Chickasaw, Clayton, Fayette, Floyd	33 hr
Jan 25, 4:05 AM CST	Winter Weather Advisory	FSD	Buena Vista, Cherokee, Ida, Plymouth, Woodbury	29 hr
Jan 25, 4:10 AM CST	Winter Weather Advisory	OAX	Fremont, Harrison, Mills, Monona, Montgomery, Page and 2 more	29 hr
Jan 25, 4:17 AM CST	Winter Weather Advisory	DMX	Bremer, Butler, Cerro Gordo, Franklin, Hancock, Humboldt and 2 more	32 hr
Jan 29, 2:05 PM CST	Winter Weather Advisory	FSD	Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 4 more	34 hr
Jan 29, 2:29 PM CST	Winter Weather Advisory	DVN	Benton, Buchanan, Cedar, Clinton, Delaware, Des Moines and 13 more	52 hr
Jan 29, 2:54 PM CST	Winter Weather Advisory	ARX	Allamakee, Chickasaw, Floyd, Howard, Mitchell, Winneshiek	45 hr
Jan 29, 2:56 PM CST	Winter Weather Advisory	DMX	Adair, Black Hawk, Boone, Bremer, Butler, Calhoun and 30 more	42 hr
Feb 3, 3:12 AM CST	Winter Weather Advisory	OAX	Fremont, Harrison, Mills, Monona, Montgomery, Page and 2 more	33 hr
Feb 3, 3:15 AM CST	Winter Weather Advisory	FSD	Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more	33 hr
Feb 3, 3:35 AM CST	Winter Weather Advisory	DMX	Adair, Adams, Appanoose, Audubon, Black Hawk, Boone and 45 more	48 hr
Feb 3, 4:01 AM CST	Winter Weather Advisory	DVN	Benton, Buchanan, Cedar, Clinton, Delaware, Des Moines and 15 more	56 hr
Feb 3, 1:53 PM CST	Winter Weather Advisory	ARX	Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more	34 hr
Feb 5, 3:26 AM CST	Winter Weather Advisory	OAX	Fremont, Harrison, Mills, Montgomery, Page, Pottawattamie	36 hr
Feb 5, 1:38 PM CST	Winter Weather Advisory	DVN	Cedar, Des Moines, Henry, Iowa, Jefferson, Johnson and 7 more	29 hr
Feb 5, 2:42 PM CST	Winter Weather Advisory	DMX	Adair, Adams, Appanoose, Audubon, Cass, Clarke and 18 more	27 hr
Feb 6, 3:14 PM CST	Winter Weather Advisory	OAX	Fremont, Harrison, Mills, Monona, Montgomery, Page and 2 more	37 hr
Feb 7, 3:02 AM CST	Winter Weather Advisory	DMX	Adair, Adams, Cass, Decatur, Ringgold, Taylor and 1 more	12 hr
Feb 8, 11:03 AM CST	Winter Weather Advisory	DVN	Benton, Cedar, Clinton, Des Moines, Henry, Iowa and 9 more	12 hr
Feb 11, 2:16 PM CST	Winter Weather Advisory	OAX	Fremont, Mills, Montgomery, Page, Pottawattamie	40 hr
Feb 14, 1:43 PM CST	Winter Weather Advisory	DVN	Des Moines, Henry, Lee, Louisa, Muscatine, Scott	40 hr
Feb 20, 3:29 AM CST	Winter Weather Advisory	FSD	Buena Vista, Cherokee, Clay, Dickinson, Ida, O'Brien and 4 more	36 hr
Feb 20, 3:32 AM CST	Winter Weather Advisory	DMX	Adair, Adams, Appanoose, Audubon, Black Hawk, Boone and 45 more	40 hr
Feb 20, 2:09 PM CST	Winter Weather Advisory	ARX	Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more	32 hr
Feb 20, 2:35 PM CST	Winter Weather Advisory	DVN	Benton, Buchanan, Cedar, Clinton, Delaware, Dubuque and 13 more	30 hr
Feb 20, 3:09 PM CST	Winter Weather Advisory	OAX	Fremont, Harrison, Mills, Monona, Montgomery, Page and 2 more	24 hr
Feb 27, 3:30 AM CST	Winter Weather Advisory	DMX	Emmet	30 hr
Feb 27, 3:52 AM CST	Winter Weather Advisory	FSD	Clay, Dickinson, Lyon, O'Brien, Osceola, Plymouth and 1 more	29 hr
Mar 14, 3:53 AM CDT	Winter Weather Advisory	DVN	Benton, Buchanan, Cedar, Clinton, Delaware, Dubuque and 7 more	39 hr
Mar 14, 4:02 AM CDT	Winter Weather Advisory	DMX	Audubon, Black Hawk, Boone, Bremer, Calhoun, Carroll and 16 more	36 hr
Mar 14, 4:03 AM CDT	Winter Weather Advisory	FSD	Ida, Plymouth, Woodbury	30 hr
Mar 14, 4:06 AM CDT	Winter Weather Advisory	ARX	Allamakee, Chickasaw, Clayton, Fayette, Howard, Mitchell and 1 more	42 hr
Nov 11, 2:50 AM CST	Winter Weather Advisory	DMX	Cerro Gordo, Emmet, Franklin, Hancock, Kossuth, Palo Alto and 3 more	34 hr
Nov 11, 3:11 AM CST	Winter Weather Advisory	FSD	Clay, Dickinson, Lyon, O'Brien, Osceola, Sioux	33 hr
Nov 27, 8:16 AM CST	Winter Weather Advisory	DVN	Cedar, Clinton, Dubuque, Iowa, Jackson, Johnson and 2 more	2 hr
Dec 5, 12:25 PM CST	Winter Weather Advisory	ARX	Allamakee	9 hr
Dec 9, 5:12 AM CST	Winter Weather Advisory	DVN	Benton, Buchanan, Delaware, Dubuque, Jones, Linn	4 hr
Dec 9, 5:14 AM CST	Winter Weather Advisory	DMX	Black Hawk, Boone, Bremer, Butler, Cerro Gordo, Franklin and 9 more	3 hr
Dec 9, 5:23 AM CST	Winter Weather Advisory	ARX	Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more	4 hr
Dec 9, 11:23 AM CST	Winter Weather Advisory	FSD	Ida, Woodbury	40 hr
Dec 9, 11:44 AM CST	Winter Weather Advisory	DMX	Black Hawk, Boone, Bremer, Butler, Calhoun, Carroll and 13 more	42 hr
Dec 9, 11:48 AM CST	Winter Weather Advisory	OAX	Harrison, Monona, Pottawattamie, Shelby	37 hr
Dec 9, 1:50 PM CST	Winter Weather Advisory	ARX	Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 1 more	43 hr
Dec 10, 3:26 AM CST	Winter Weather Advisory	DVN	Benton, Buchanan, Delaware, Dubuque, Linn	27 hr
Dec 14, 2:28 PM CST	Winter Weather Advisory	FSD	Dickinson, Lyon, Osceola	36 hr
Dec 26, 2:27 AM CST	Winter Weather Advisory	ARX	Allamakee, Howard, Winneshiek	34 hr
Dec 26, 4:14 AM CST	Winter Weather Advisory	FSD	Dickinson, Lyon, Osceola	24 hr
Dec 27, 2:11 PM CST	Winter Weather Advisory	DMX	Black Hawk, Bremer, Butler, Cerro Gordo, Franklin, Grundy and 12 more	28 hr
Dec 27, 2:38 PM CST	Winter Weather Advisory	ARX	Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more	33 hr
Dec 27, 2:57 PM CST	Winter Weather Advisory	DVN	Benton, Buchanan, Cedar, Clinton, Delaware, Des Moines and 13 more	27 hr
Dec 31, 11:01 AM CST	Winter Weather Advisory	DVN	Benton, Buchanan, Cedar, Clinton, Delaware, Dubuque and 10 more	10 hr
Dec 31, 11:11 AM CST	Winter Weather Advisory	DMX	Adair, Audubon, Black Hawk, Boone, Bremer, Butler and 25 more	10 hr
Dec 31, 12:32 PM CST	Winter Weather Advisory	ARX	Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more	8 hr

By county

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

59 more counties

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force now Tornadoes on record The radar archive 2020 2022

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.