Weather alerts in Iowa, April 2020

Weather alerts by county

Each county as a circle sized by its count in April 2020. Tap one for its archive.

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
Apr 1, 4:42 AM CDT	Winter Weather Advisory	FSD	Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more	53 hr
Apr 1, 10:08 AM CDT	River Flood Watch	DVN	Jackson	35 hr
Apr 1, 10:09 AM CDT	River Flood Warning	ARX	Clayton	15 days
Apr 2, 3:34 AM CDT	Winter Weather Advisory	OAX	Fremont, Harrison, Mills, Monona, Montgomery, Page and 2 more	33 hr
Apr 2, 3:44 AM CDT	Winter Weather Advisory	DMX	Adair, Adams, Audubon, Boone, Butler, Calhoun and 26 more	36 hr
Apr 2, 8:53 PM CDT	River Flood Warning	DVN	Jackson	11 days
Apr 3, 3:21 AM CDT	Winter Weather Advisory	ARX	Chickasaw, Floyd, Howard, Mitchell	16 hr
Apr 7, 3:31 AM CDT	Dense Fog Advisory	ARX	Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more	6 hr
Apr 7, 3:52 AM CDT	Dense Fog Advisory	DVN	Buchanan, Delaware, Dubuque	5 hr
Apr 7, 6:55 AM CDT	Dense Fog Advisory	OAX	Fremont, Harrison, Mills, Montgomery, Page, Pottawattamie and 1 more	3 hr
Apr 7, 5:07 PM CDT	Mesoscale Discussion	SPC	Cedar, Clinton, Dubuque, Jackson, Scott	83 min
Apr 7, 5:26 PM CDT	Severe Thunderstorm Watch	SPC	Cedar, Clinton, Iowa, Jackson, Johnson, Jones and 6 more	6 hr
Apr 7, 6:01 PM CDT	Severe Thunderstorm Warning	DVN	Jones, Linn	59 min
Apr 7, 6:41 PM CDT	Severe Thunderstorm Warning	DVN	Cedar, Jones, Linn	49 min
Apr 7, 6:56 PM CDT	Severe Thunderstorm Warning	DVN	Benton, Cedar, Linn	49 min
Apr 7, 7:14 PM CDT	Severe Thunderstorm Warning	DVN	Cedar, Jones	61 min
Apr 7, 7:22 PM CDT	Mesoscale Discussion	SPC	Cedar, Clinton, Jackson, Johnson, Muscatine, Scott	83 min
Apr 7, 7:29 PM CDT	Severe Thunderstorm Warning	DVN	Cedar, Johnson, Linn	46 min
Apr 7, 7:35 PM CDT	Severe Thunderstorm Warning	DVN	Cedar, Clinton, Scott	55 min
Apr 7, 8:03 PM CDT	Severe Thunderstorm Warning	DVN	Cedar, Scott	27 min
Apr 7, 8:06 PM CDT	Severe Thunderstorm Warning	DVN	Cedar, Iowa, Johnson, Muscatine	39 min
Apr 7, 8:17 PM CDT	Severe Thunderstorm Warning	DVN	Scott	58 min
Apr 7, 8:45 PM CDT	Severe Thunderstorm Warning	DVN	Iowa, Johnson, Keokuk, Washington	30 min
Apr 7, 9:02 PM CDT	Special Weather Statement	DVN	Muscatine	28 min
Apr 7, 9:07 PM CDT	Severe Thunderstorm Warning	DVN	Muscatine, Scott	23 min
Apr 7, 9:14 PM CDT	Severe Thunderstorm Warning	DVN	Johnson, Louisa, Muscatine, Washington	31 min
Apr 7, 9:27 PM CDT	Severe Thunderstorm Warning	DVN	Muscatine, Scott	33 min
Apr 7, 9:40 PM CDT	Severe Thunderstorm Warning	DVN	Louisa, Muscatine	35 min
Apr 8, 12:48 AM CDT	Dense Fog Advisory	ARX	Allamakee, Clayton, Fayette, Winneshiek	8 hr
Apr 8, 4:22 AM CDT	Dense Fog Advisory	DVN	Benton, Buchanan, Cedar, Clinton, Delaware, Dubuque and 5 more	5 hr
Apr 8, 1:46 PM CDT	Mesoscale Discussion	SPC	Des Moines, Henry, Jefferson, Lee, Louisa, Van Buren	119 min
Apr 8, 2:04 PM CDT	Special Weather Statement	DVN	Buchanan, Delaware	56 min
Apr 8, 2:22 PM CDT	Severe Thunderstorm Warning	DVN	Henry, Jefferson, Van Buren	53 min
Apr 8, 2:54 PM CDT	Severe Thunderstorm Warning	DVN	Van Buren	36 min
Apr 8, 2:56 PM CDT	Severe Thunderstorm Warning	DVN	Des Moines, Henry, Lee	64 min
Apr 8, 3:07 PM CDT	Severe Thunderstorm Warning	DVN	Lee	38 min
Apr 8, 3:08 PM CDT	Severe Thunderstorm Watch	SPC	Des Moines, Lee	6 hr
Apr 8, 3:11 PM CDT	Wind Advisory	DMX	Adair, Adams, Appanoose, Audubon, Black Hawk, Boone and 45 more	28 hr
Apr 8, 3:29 PM CDT	Wind Advisory	FSD	Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more	26 hr
Apr 8, 3:32 PM CDT	Wind Advisory	OAX	Fremont, Harrison, Mills, Monona, Montgomery, Page and 2 more	27 hr
Apr 8, 3:41 PM CDT	Severe Thunderstorm Warning	DVN	Lee	49 min
Apr 8, 4:09 PM CDT	Severe Thunderstorm Warning	DVN	Muscatine	25 min
Apr 9, 2:46 AM CDT	Wind Advisory	ARX	Chickasaw, Clayton, Fayette, Floyd	16 hr
Apr 9, 2:52 AM CDT	Wind Advisory	DVN	Benton, Buchanan, Cedar, Clinton, Delaware, Des Moines and 15 more	16 hr
Apr 9, 3:48 AM CDT	Red Flag Warning	OAX	Fremont, Page	15 hr
Apr 9, 2:51 PM CDT	Freeze Warning	OAX	Fremont, Page	18 hr
Apr 10, 3:09 PM CDT	Winter Storm Watch	ARX	Mitchell	24 hr
Apr 10, 3:22 PM CDT	Winter Storm Watch	OAX	Harrison, Monona, Shelby	24 hr
Apr 10, 3:32 PM CDT	Winter Storm Watch	FSD	Buena Vista, Cherokee, Clay, Dickinson, Ida, O'Brien and 4 more	23 hr
Apr 10, 3:41 PM CDT	Winter Storm Watch	DMX	Calhoun, Cerro Gordo, Crawford, Emmet, Hancock, Humboldt and 6 more	24 hr
Apr 11, 3:08 AM CDT	Winter Storm Warning	FSD	Cherokee, Clay, Dickinson, Lyon, O'Brien, Osceola and 2 more	43 hr
Apr 11, 3:08 AM CDT	Winter Weather Advisory	FSD	Buena Vista, Ida, Lyon, Woodbury	43 hr
Apr 11, 2:44 PM CDT	Winter Storm Warning	ARX	Mitchell	39 hr
Apr 11, 2:44 PM CDT	Winter Weather Advisory	ARX	Floyd, Howard	39 hr
Apr 11, 3:08 PM CDT	Winter Weather Advisory	OAX	Monona	29 hr
Apr 11, 3:14 PM CDT	Wind Advisory	OAX	Fremont, Harrison, Mills, Montgomery, Page, Pottawattamie and 1 more	31 hr
Apr 11, 3:23 PM CDT	Winter Storm Warning	DMX	Emmet, Kossuth, Palo Alto, Winnebago, Worth	31 hr
Apr 11, 3:23 PM CDT	Winter Weather Advisory	DMX	Calhoun, Cerro Gordo, Hancock, Humboldt, Pocahontas, Sac	31 hr
Apr 11, 3:40 PM CDT	Special Weather Statement	DVN	Lee	65 min
Apr 11, 10:05 PM CDT	Special Weather Statement	DMX	Decatur	25 min
Apr 11, 10:08 PM CDT	Severe Thunderstorm Warning	DMX	Decatur, Ringgold	36 min
Apr 11, 10:44 PM CDT	Special Weather Statement	DMX	Lucas, Wayne	61 min
Apr 11, 11:25 PM CDT	Special Weather Statement	DMX	Lucas, Monroe	50 min
Apr 11, 11:35 PM CDT	Severe Thunderstorm Warning	DMX	Monroe	40 min
Apr 12, 12:37 AM CDT	Special Weather Statement	DVN	Henry	38 min
Apr 12, 1:16 AM CDT	Special Weather Statement	DVN	Des Moines, Lee	59 min
Apr 12, 3:42 AM CDT	Wind Advisory	DVN	Benton, Buchanan, Cedar, Clinton, Delaware, Des Moines and 15 more	36 hr
Apr 12, 4:02 AM CDT	Freeze Warning	OAX	Fremont, Mills, Montgomery, Page	30 hr
Apr 12, 4:58 AM CDT	Wind Advisory	DMX	Adair, Adams, Appanoose, Audubon, Black Hawk, Boone and 34 more	23 hr
Apr 12, 6:26 AM CDT	Mesoscale Discussion	SPC	Lyon, Osceola	4 hr
Apr 12, 10:20 AM CDT	River Flood Warning	DVN	Lee	4 days
Apr 12, 3:12 PM CDT	Special Weather Statement	DVN	Jefferson	48 min
Apr 12, 3:49 PM CDT	Special Weather Statement	DVN	Washington	56 min
Apr 12, 4:14 PM CDT	Special Weather Statement	DVN	Dubuque, Jones	31 min
Apr 12, 4:42 PM CDT	Special Weather Statement	DVN	Lee	33 min
Apr 12, 4:53 PM CDT	Special Weather Statement	DVN	Muscatine	52 min
Apr 12, 5:23 PM CDT	Special Weather Statement	DVN	Scott	37 min
Apr 13, 4:06 AM CDT	Freeze Warning	OAX	Fremont, Mills, Montgomery, Page	30 hr
Apr 15, 4:30 AM CDT	Dense Fog Advisory	DMX	Adair, Adams, Appanoose, Audubon, Boone, Carroll and 25 more	7 hr
Apr 15, 3:06 PM CDT	Winter Storm Watch	DMX	Adair, Adams, Appanoose, Cass, Clarke, Davis and 12 more	6 hr
Apr 15, 3:13 PM CDT	Winter Storm Watch	DVN	Des Moines, Henry, Jefferson, Keokuk, Lee, Louisa and 2 more	11 hr
Apr 15, 3:55 PM CDT	Winter Storm Warning	OAX	Fremont, Mills, Montgomery, Page	36 hr
Apr 15, 3:55 PM CDT	Winter Weather Advisory	OAX	Harrison, Pottawattamie, Shelby	36 hr
Apr 15, 8:55 PM CDT	Winter Storm Warning	DMX	Adams, Appanoose, Clarke, Davis, Decatur, Lucas and 6 more	34 hr
Apr 15, 8:55 PM CDT	Winter Weather Advisory	DMX	Adair, Audubon, Cass, Dallas, Guthrie, Jasper and 6 more	34 hr
Apr 16, 2:12 AM CDT	Winter Storm Warning	DVN	Des Moines, Henry, Jefferson, Keokuk, Lee, Louisa and 3 more	29 hr
Apr 16, 2:12 AM CDT	Winter Weather Advisory	DVN	Benton, Cedar, Clinton, Iowa, Jackson, Johnson and 4 more	29 hr
Apr 16, 1:29 PM CDT	Mesoscale Discussion	SPC	Adams, Cass, Fremont, Mills, Montgomery, Page and 3 more	4 hr
Apr 16, 5:43 PM CDT	Mesoscale Discussion	SPC	Adair, Adams, Appanoose, Cass, Clarke, Davis and 25 more	4 hr
Apr 16, 8:19 PM CDT	River Flood Watch	DVN	Lee	13 hr
Apr 17, 8:53 AM CDT	River Flood Warning	DVN	Lee	70 hr
Apr 19, 3:04 PM CDT	Fire Weather Watch	FSD	Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more	13 hr
Apr 20, 3:44 AM CDT	Wind Advisory	FSD	Dickinson, Lyon, Osceola	15 hr
Apr 20, 4:05 AM CDT	Red Flag Warning	FSD	Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more	15 hr
Apr 20, 4:45 PM CDT	Special Weather Statement	DVN	Benton, Buchanan, Delaware, Dubuque, Jackson, Jones and 1 more	60 min
Apr 20, 5:46 PM CDT	Special Weather Statement	DVN	Clinton, Dubuque, Jackson, Jones, Linn	59 min
Apr 22, 2:20 PM CDT	Special Weather Statement	ARX	Allamakee, Chickasaw, Winneshiek	55 min
Apr 22, 3:16 PM CDT	Special Weather Statement	ARX	Allamakee, Winneshiek	59 min
Apr 22, 3:43 PM CDT	Severe Thunderstorm Warning	ARX	Allamakee	32 min
Apr 22, 5:14 PM CDT	Special Weather Statement	ARX	Clayton, Fayette	61 min
Apr 22, 8:08 PM CDT	Special Weather Statement	DVN	Jones	37 min
Apr 22, 8:34 PM CDT	Special Weather Statement	DVN	Cedar, Jones, Linn	41 min
Apr 23, 4:26 PM CDT	Special Weather Statement	DVN	Des Moines	64 min
Apr 25, 5:46 PM CDT	Special Weather Statement	OAX	Mills	14 min
Apr 28, 3:33 PM CDT	Mesoscale Discussion	SPC	Des Moines, Lee	87 min
Apr 28, 4:08 PM CDT	Special Weather Statement	DVN	Cedar	37 min
Apr 28, 4:28 PM CDT	Special Weather Statement	DVN	Cedar	47 min
Apr 28, 4:32 PM CDT	Special Weather Statement	ARX	Winneshiek	58 min
Apr 28, 6:04 PM CDT	Special Weather Statement	OAX	Harrison	26 min
Apr 28, 6:15 PM CDT	Special Weather Statement	OAX	Harrison, Monona	30 min
Apr 28, 6:41 PM CDT	Special Weather Statement	OAX	Fremont, Mills, Montgomery, Page, Pottawattamie, Shelby	49 min
Apr 28, 7:42 PM CDT	Special Weather Statement	OAX	Fremont, Mills, Montgomery	33 min
Apr 29, 2:35 AM CDT	Wind Advisory	OAX	Fremont, Harrison, Mills, Monona, Montgomery, Page and 2 more	16 hr
Apr 29, 3:22 AM CDT	Wind Advisory	FSD	Buena Vista, Cherokee, Clay, Dickinson, Ida, O'Brien and 1 more	16 hr
Apr 29, 3:27 AM CDT	Wind Advisory	DMX	Adair, Adams, Appanoose, Audubon, Black Hawk, Boone and 45 more	16 hr
Apr 29, 8:31 AM CDT	Wind Advisory	ARX	Chickasaw, Fayette, Floyd, Howard, Mitchell, Winneshiek	10 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	23
Severe Thunderstorm Watch	2
Mesoscale Discussion	7
Special Weather Statement	30
Flooding
River Flood Warning	4
River Flood Watch	2
Winter
Winter Storm Warning	6
Winter Storm Watch	6
Winter Weather Advisory	11
Cold
Freeze Warning	3
Wind and dust
Wind Advisory	13
Fire
Red Flag Warning	2
Fire Weather Watch	1
Fog and smoke
Dense Fog Advisory	6

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 2019 2021

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.