Alert archive / Iowa / 2018

Weather alerts in Iowa, April 2018

158 weather alerts in April 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 April 2018. Tap one for its archive.

Alerts: 158
Warnings: 82
Watches: 27
Advisories: 34
Busiest day: April 13, 201847 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
Apr 1, 2:53 PM CDT	Winter Storm Watch	ARX	Chickasaw, Floyd, Howard, Mitchell, Winneshiek	20 hr
Apr 2, 2:24 AM CDT	Dense Fog Advisory	DVN	Lee	8 hr
Apr 2, 3:45 AM CDT	Winter Storm Watch	FSD	Clay, Dickinson, Lyon, O'Brien, Osceola, Sioux	11 hr
Apr 2, 4:16 AM CDT	Winter Storm Watch	DMX	Cerro Gordo, Emmet, Hancock, Kossuth, Palo Alto, Winnebago and 1 more	10 hr
Apr 2, 11:09 AM CDT	Winter Storm Warning	ARX	Floyd, Howard, Mitchell, Winneshiek	41 hr
Apr 2, 11:09 AM CDT	Winter Weather Advisory	ARX	Allamakee, Chickasaw, Clayton, Fayette	41 hr
Apr 2, 2:00 PM CDT	Winter Storm Warning	DMX	Cerro Gordo, Emmet, Hancock, Kossuth, Palo Alto, Winnebago and 1 more	35 hr
Apr 2, 2:00 PM CDT	Winter Weather Advisory	DMX	Adair, Audubon, Black Hawk, Boone, Bremer, Butler and 22 more	35 hr
Apr 2, 2:20 PM CDT	Winter Weather Advisory	FSD	Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more	31 hr
Apr 2, 3:10 PM CDT	Winter Weather Advisory	DVN	Benton, Buchanan, Delaware, Dubuque, Jackson, Jones and 1 more	28 hr
Apr 2, 3:39 PM CDT	Winter Weather Advisory	OAX	Fremont, Harrison, Mills, Monona, Pottawattamie, Shelby	27 hr
Apr 2, 3:42 PM CDT	Wind Advisory	OAX	Fremont, Harrison, Mills, Montgomery, Page, Pottawattamie and 1 more	28 hr
Apr 3, 3:21 AM CDT	Winter Storm Warning	FSD	Dickinson, Osceola	18 hr
Apr 3, 4:19 AM CDT	Wind Advisory	DMX	Adair, Adams, Appanoose, Audubon, Boone, Carroll and 23 more	21 hr
Apr 3, 4:48 PM CDT	River Flood Warning	DMX	Emmet	6 days
Apr 5, 3:56 AM CDT	Winter Weather Advisory	OAX	Mills, Montgomery, Pottawattamie	38 hr
Apr 5, 10:11 AM CDT	Special Weather Statement	DVN	Cedar, Clinton, Delaware, Dubuque, Jackson, Jones and 1 more	94 min
Apr 5, 11:47 AM CDT	Special Weather Statement	DVN	Clinton, Delaware, Dubuque, Jackson	58 min
Apr 5, 12:53 PM CDT	Special Weather Statement	DVN	Dubuque	112 min
Apr 6, 3:28 PM CDT	Winter Storm Watch	FSD	Dickinson	23 hr
Apr 7, 3:31 AM CDT	Winter Storm Watch	DMX	Cerro Gordo, Emmet, Hancock, Kossuth, Palo Alto, Winnebago and 1 more	12 hr
Apr 7, 2:21 PM CDT	Winter Weather Advisory	ARX	Chickasaw, Fayette, Floyd, Howard, Mitchell, Winneshiek	41 hr
Apr 7, 2:53 PM CDT	Winter Weather Advisory	FSD	Buena Vista, Cherokee, Clay, Dickinson, Lyon, O'Brien and 3 more	34 hr
Apr 7, 3:05 PM CDT	Winter Weather Advisory	DMX	Adair, Adams, Appanoose, Audubon, Black Hawk, Boone and 45 more	40 hr
Apr 7, 3:08 PM CDT	Winter Weather Advisory	DVN	Benton, Buchanan, Cedar, Delaware, Des Moines, Henry and 9 more	43 hr
Apr 8, 3:48 PM CDT	Winter Storm Warning	DMX	Cerro Gordo, Emmet, Hancock, Kossuth, Palo Alto, Winnebago and 1 more	12 hr
Apr 9, 10:03 AM CDT	Winter Weather Advisory	DVN	Des Moines, Henry, Iowa, Jefferson, Johnson, Keokuk and 2 more	94 min
Apr 11, 3:30 PM CDT	Winter Storm Watch	OAX	Monona	48 hr
Apr 11, 3:37 PM CDT	Winter Storm Watch	FSD	Clay, Dickinson, Lyon, O'Brien, Osceola, Plymouth and 1 more	24 hr
Apr 12, 3:49 AM CDT	Winter Storm Watch	DMX	Calhoun, Carroll, Cerro Gordo, Crawford, Emmet, Hancock and 9 more	36 hr
Apr 12, 9:58 AM CDT	River Flood Warning	DMX	Emmet	38 days
Apr 12, 3:37 PM CDT	Winter Storm Watch	ARX	Allamakee, Chickasaw, Floyd, Howard, Mitchell, Winneshiek	24 hr
Apr 12, 3:45 PM CDT	Blizzard Warning	FSD	Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more	60 hr
Apr 12, 3:45 PM CDT	Winter Storm Watch	FSD	Buena Vista, Cherokee, Ida, Woodbury	24 hr
Apr 13, 3:32 AM CDT	Blizzard Warning	DMX	Calhoun, Cerro Gordo, Emmet, Hancock, Humboldt, Kossuth and 5 more	48 hr
Apr 13, 4:53 AM CDT	Special Weather Statement	DMX	Cerro Gordo	52 min
Apr 13, 5:36 AM CDT	Special Weather Statement	DMX	Worth	24 min
Apr 13, 7:08 AM CDT	Severe Thunderstorm Warning	ARX	Allamakee, Winneshiek	37 min
Apr 13, 8:44 AM CDT	Mesoscale Discussion	SPC	Allamakee, Dickinson, Emmet, Howard, Lyon, Mitchell and 4 more	3 hr
Apr 13, 9:41 AM CDT	River Flood Warning	FSD	Plymouth, Sioux	59 hr
Apr 13, 9:41 AM CDT	River Flood Warning	FSD	Plymouth	3 days
Apr 13, 9:41 AM CDT	River Flood Warning	FSD	Lyon	3 days
Apr 13, 9:41 AM CDT	River Flood Warning	FSD	Clay	4 days
Apr 13, 9:41 AM CDT	River Flood Warning	FSD	Clay, Dickinson	63 hr
Apr 13, 9:41 AM CDT	River Flood Warning	FSD	Clay	25 days
Apr 13, 9:41 AM CDT	River Flood Warning	FSD	Buena Vista, Clay	43 days
Apr 13, 11:08 AM CDT	River Flood Watch	DMX	Black Hawk	24 hr
Apr 13, 2:06 PM CDT	Mesoscale Discussion	SPC	Adair, Adams, Cass, Clarke, Decatur, Fremont and 8 more	2 hr
Apr 13, 2:19 PM CDT	Tornado Watch	SPC	Adair, Adams, Appanoose, Cass, Clarke, Davis and 17 more	7 hr
Apr 13, 3:01 PM CDT	Severe Thunderstorm Warning	OAX	Pottawattamie, Shelby	29 min
Apr 13, 3:19 PM CDT	Winter Storm Warning	OAX	Monona	23 hr
Apr 13, 3:19 PM CDT	Winter Weather Advisory	OAX	Harrison, Mills, Monona, Pottawattamie, Shelby	33 hr
Apr 13, 3:22 PM CDT	Severe Thunderstorm Warning	OAX	Mills, Montgomery, Pottawattamie	23 min
Apr 13, 3:22 PM CDT	Severe Thunderstorm Watch	SPC	Audubon, Black Hawk, Boone, Calhoun, Carroll, Dallas and 13 more	6 hr
Apr 13, 3:27 PM CDT	Severe Thunderstorm Warning	OAX	Pottawattamie, Shelby	33 min
Apr 13, 3:33 PM CDT	River Flood Watch	DVN	Iowa, Johnson	42 hr
Apr 13, 3:38 PM CDT	Tornado Warning	OAX	Mills, Pottawattamie	22 min
Apr 13, 3:52 PM CDT	Severe Thunderstorm Warning	OAX	Pottawattamie, Shelby	38 min
Apr 13, 3:54 PM CDT	Winter Storm Warning	DMX	Cerro Gordo, Hancock, Winnebago, Worth	20 hr
Apr 13, 3:54 PM CDT	Winter Weather Advisory	DMX	Adair, Audubon, Black Hawk, Boone, Bremer, Butler and 37 more	48 hr
Apr 13, 4:04 PM CDT	Winter Storm Warning	ARX	Floyd, Howard, Mitchell	54 hr
Apr 13, 4:04 PM CDT	Winter Weather Advisory	ARX	Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more	51 hr
Apr 13, 4:06 PM CDT	Severe Thunderstorm Warning	OAX	Mills, Montgomery, Pottawattamie	24 min
Apr 13, 4:18 PM CDT	Severe Thunderstorm Warning	DMX	Audubon, Cass	57 min
Apr 13, 4:24 PM CDT	Severe Thunderstorm Warning	OAX	Pottawattamie, Shelby	36 min
Apr 13, 4:29 PM CDT	Severe Thunderstorm Warning	OAX	Fremont, Mills	31 min
Apr 13, 4:34 PM CDT	Severe Thunderstorm Warning	OAX	Fremont	26 min
Apr 13, 4:47 PM CDT	Severe Thunderstorm Warning	OAX	Mills, Montgomery, Pottawattamie	43 min
Apr 13, 4:57 PM CDT	Severe Thunderstorm Warning	OAX	Fremont, Mills	33 min
Apr 13, 5:27 PM CDT	Special Weather Statement	DMX	Greene	63 min
Apr 13, 5:31 PM CDT	Mesoscale Discussion	SPC	Audubon, Carroll, Cass, Fremont, Greene, Guthrie and 5 more	29 min
Apr 13, 5:36 PM CDT	Severe Thunderstorm Warning	DMX	Carroll, Greene	39 min
Apr 13, 5:51 PM CDT	Wind Advisory	DVN	Benton, Buchanan, Cedar, Clinton, Delaware, Dubuque and 7 more	25 hr
Apr 13, 6:02 PM CDT	Severe Thunderstorm Warning	DMX	Calhoun, Greene, Webster	43 min
Apr 13, 6:19 PM CDT	Severe Thunderstorm Warning	FSD	Osceola	26 min
Apr 13, 6:36 PM CDT	Severe Thunderstorm Warning	OAX	Montgomery, Page	24 min
Apr 13, 6:39 PM CDT	Severe Thunderstorm Warning	DMX	Hamilton, Webster, Wright	51 min
Apr 13, 6:43 PM CDT	Special Weather Statement	ARX	Allamakee	32 min
Apr 13, 6:52 PM CDT	Severe Thunderstorm Warning	DMX	Boone, Dallas, Greene	38 min
Apr 13, 6:56 PM CDT	Special Weather Statement	ARX	Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more	64 min
Apr 13, 6:57 PM CDT	Severe Thunderstorm Warning	DMX	Hamilton, Webster, Wright	63 min
Apr 13, 7:05 PM CDT	Severe Thunderstorm Warning	DMX	Adair, Adams, Cass	40 min
Apr 13, 7:18 PM CDT	Severe Thunderstorm Warning	DMX	Adams, Taylor	42 min
Apr 13, 7:23 PM CDT	Severe Thunderstorm Warning	DMX	Boone, Hamilton, Hardin, Marshall, Story	52 min
Apr 13, 7:49 PM CDT	Severe Thunderstorm Warning	DMX	Adair, Adams, Madison, Union	41 min
Apr 13, 7:52 PM CDT	Severe Thunderstorm Warning	DMX	Franklin, Hamilton, Hardin, Marshall, Story, Wright	39 min
Apr 13, 7:59 PM CDT	Severe Thunderstorm Warning	DMX	Adams, Ringgold, Taylor, Union	36 min
Apr 13, 8:00 PM CDT	Severe Thunderstorm Warning	ARX	Floyd, Mitchell	18 min
Apr 13, 8:19 PM CDT	Severe Thunderstorm Warning	DMX	Butler, Cerro Gordo, Franklin, Grundy	41 min
Apr 13, 8:25 PM CDT	Severe Thunderstorm Warning	ARX	Chickasaw	35 min
Apr 13, 8:32 PM CDT	Severe Thunderstorm Warning	DMX	Adair, Madison, Union	37 min
Apr 13, 8:43 PM CDT	Severe Thunderstorm Warning	DMX	Dallas, Polk	36 min
Apr 13, 8:46 PM CDT	Severe Thunderstorm Warning	ARX	Howard	29 min
Apr 13, 9:25 PM CDT	Special Weather Statement	DVN	Dubuque	35 min
Apr 14, 1:31 AM CDT	Wind Advisory	DMX	Black Hawk, Bremer, Butler, Dallas, Grundy, Hardin and 6 more	14 hr
Apr 14, 2:56 AM CDT	Wind Advisory	ARX	Chickasaw, Clayton, Fayette, Floyd	10 hr
Apr 14, 3:51 AM CDT	Winter Weather Advisory	DVN	Benton, Buchanan, Cedar, Delaware, Dubuque, Iowa and 7 more	39 hr
Apr 14, 6:52 AM CDT	River Flood Warning	DMX	Cerro Gordo, Floyd, Worth	11 hr
Apr 14, 7:30 AM CDT	River Flood Warning	FSD	Clay, Dickinson	5 days
Apr 14, 10:06 AM CDT	Mesoscale Discussion	SPC	Buena Vista, Calhoun, Cerro Gordo, Cherokee, Clay, Dickinson and 21 more	6 hr
Apr 14, 10:42 AM CDT	River Flood Warning	DMX	Black Hawk	12 days
Apr 14, 6:02 PM CDT	Mesoscale Discussion	SPC	Allamakee, Winneshiek	6 hr
Apr 15, 3:27 AM CDT	Winter Weather Advisory	FSD	Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more	13 hr
Apr 15, 3:56 AM CDT	Winter Weather Advisory	DMX	Crawford	2 hr
Apr 15, 4:13 AM CDT	Winter Weather Advisory	ARX	Howard, Mitchell	15 hr
Apr 15, 4:36 AM CDT	River Flood Warning	ARX	Floyd	24 hr
Apr 16, 3:11 AM CDT	Winter Storm Watch	ARX	Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more	36 hr
Apr 16, 3:21 AM CDT	Winter Storm Watch	FSD	Buena Vista, Cherokee, Clay, Dickinson, Lyon, O'Brien and 4 more	24 hr
Apr 16, 3:42 AM CDT	Winter Storm Watch	DMX	Butler, Cerro Gordo, Emmet, Franklin, Hancock, Humboldt and 6 more	24 hr
Apr 17, 3:33 AM CDT	Winter Weather Advisory	FSD	Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more	38 hr
Apr 17, 3:35 AM CDT	Winter Storm Warning	ARX	Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more	44 hr
Apr 17, 3:54 AM CDT	Winter Storm Warning	DMX	Black Hawk, Bremer, Butler, Calhoun, Cerro Gordo, Emmet and 14 more	38 hr
Apr 17, 3:54 AM CDT	Winter Weather Advisory	DMX	Audubon, Black Hawk, Boone, Bremer, Butler, Calhoun and 25 more	42 hr
Apr 17, 4:07 AM CDT	Winter Storm Watch	DVN	Buchanan, Delaware, Dubuque	11 hr
Apr 17, 4:07 AM CDT	Winter Weather Advisory	DVN	Benton, Cedar, Clinton, Iowa, Jackson, Johnson and 4 more	45 hr
Apr 17, 9:50 AM CDT	River Flood Warning	FSD	Plymouth, Sioux	18 days
Apr 17, 9:50 AM CDT	River Flood Warning	FSD	Plymouth	19 days
Apr 17, 3:02 PM CDT	Winter Storm Warning	DVN	Benton, Buchanan, Delaware, Dubuque, Jackson, Jones and 1 more	34 hr
Apr 17, 3:17 PM CDT	Winter Weather Advisory	OAX	Monona	22 hr
Apr 18, 2:59 AM CDT	Winter Storm Warning	FSD	Buena Vista, Cherokee, Clay, Dickinson, O'Brien, Osceola	15 hr
Apr 18, 2:59 AM CDT	Winter Weather Advisory	FSD	Lyon, Sioux	15 hr
Apr 18, 5:43 AM CDT	Severe Thunderstorm Warning	DMX	Butler, Franklin	47 min
Apr 18, 9:56 AM CDT	Mesoscale Discussion	SPC	Allamakee, Howard, Mitchell, Winnebago, Winneshiek, Worth	3 hr
Apr 18, 10:02 AM CDT	River Flood Warning	FSD	Lyon	7 days
Apr 18, 10:02 AM CDT	River Flood Warning	FSD	Clay	7 days
Apr 18, 10:02 AM CDT	River Flood Warning	FSD	Cherokee	3 days
Apr 18, 10:53 AM CDT	River Flood Watch	DMX	Humboldt	48 hr
Apr 19, 9:41 AM CDT	River Flood Watch	DVN	Cedar, Louisa, Muscatine	24 hr
Apr 20, 10:54 AM CDT	River Flood Warning	DMX	Humboldt	19 days
Apr 21, 12:40 AM CDT	River Flood Warning	FSD	Clay, Dickinson	17 days
Apr 23, 10:41 AM CDT	River Flood Warning	FSD	Lyon, Sioux	9 days
Apr 23, 8:30 PM CDT	River Flood Warning	DMX	Palo Alto, Pocahontas	11 days
Apr 24, 9:02 AM CDT	River Flood Warning	FSD	Lyon	6 days
Apr 24, 9:02 AM CDT	River Flood Warning	FSD	Cherokee	6 days
Apr 25, 8:18 AM CDT	River Flood Warning	FSD	Dickinson	32 hr
Apr 25, 1:50 PM CDT	River Flood Warning	FSD	Lyon	11 days
Apr 27, 11:32 AM CDT	River Flood Warning	ARX	Allamakee, Clayton	17 days
Apr 27, 2:42 PM CDT	Red Flag Warning	DMX	Adair, Adams, Appanoose, Audubon, Black Hawk, Boone and 38 more	4 hr
Apr 27, 2:50 PM CDT	Red Flag Warning	DVN	Benton, Buchanan, Cedar, Clinton, Delaware, Des Moines and 15 more	5 hr
Apr 28, 10:59 AM CDT	River Flood Warning	DVN	Dubuque, Jackson	18 days
Apr 28, 3:08 PM CDT	Fire Weather Watch	ARX	Chickasaw, Fayette, Floyd, Howard, Mitchell, Winneshiek	12 hr
Apr 29, 3:26 AM CDT	Red Flag Warning	DMX	Black Hawk, Boone, Bremer, Butler, Calhoun, Carroll and 19 more	18 hr
Apr 29, 3:37 AM CDT	Red Flag Warning	ARX	Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more	17 hr
Apr 29, 3:41 AM CDT	Wind Advisory	FSD	Lyon, O'Brien, Osceola, Plymouth, Sioux, Woodbury	16 hr
Apr 29, 3:52 AM CDT	Wind Advisory	OAX	Fremont, Harrison, Mills, Monona, Montgomery, Page and 2 more	39 hr
Apr 29, 10:26 AM CDT	River Flood Warning	ARX	Clayton	14 days
Apr 29, 1:49 PM CDT	River Flood Warning	DVN	Clinton, Scott	19 days
Apr 29, 1:49 PM CDT	River Flood Warning	DVN	Muscatine, Scott	20 days
Apr 29, 1:58 PM CDT	Red Flag Warning	FSD	Buena Vista, Cherokee, Clay, Dickinson, Ida, O'Brien and 4 more	5 hr
Apr 30, 3:18 AM CDT	Wind Advisory	DMX	Adair, Adams, Audubon, Boone, Calhoun, Carroll and 25 more	17 hr
Apr 30, 3:31 AM CDT	Wind Advisory	FSD	Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more	15 hr
Apr 30, 11:08 AM CDT	River Flood Watch	DVN	Dubuque	8 days
Apr 30, 11:08 AM CDT	River Flood Watch	DVN	Louisa, Muscatine	35 hr
Apr 30, 11:08 AM CDT	River Flood Watch	DVN	Louisa	35 hr
Apr 30, 11:08 AM CDT	River Flood Watch	DVN	Des Moines, Louisa	35 hr
Apr 30, 11:08 AM CDT	River Flood Watch	DVN	Des Moines	35 hr
Apr 30, 11:08 AM CDT	River Flood Watch	DVN	Des Moines, Lee	35 hr
Apr 30, 3:35 PM CDT	Wind Advisory	ARX	Chickasaw, Floyd, Howard, Mitchell	4 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	32
Tornado Warning	1
Severe Thunderstorm Watch	1
Tornado Watch	1
Mesoscale Discussion	6
Special Weather Statement	9
Flooding
River Flood Warning	31
River Flood Watch	10
Winter
Blizzard Warning	2
Winter Storm Warning	11
Winter Storm Watch	14
Winter Weather Advisory	23
Wind and dust
Wind Advisory	10
Fire
Red Flag Warning	5
Fire Weather Watch	1
Fog and smoke
Dense Fog Advisory	1

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.