Alert archive / Iowa / 2012

Weather alerts in Iowa, December 2012

52 weather alerts in December 2012, 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 2012. Tap one for its archive.

Alerts: 52
Warnings: 12
Watches: 5
Advisories: 29
Busiest day: December 19, 201210 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, 3:30 AM CST	Dense Fog Advisory	OAX	Fremont, Harrison, Mills, Monona, Montgomery, Page and 2 more	9 hr
Dec 1, 7:39 PM CST	Dense Fog Advisory	OAX	Fremont, Harrison, Mills, Monona, Montgomery, Page and 2 more	13 hr
Dec 1, 8:46 PM CST	Dense Fog Advisory	DMX	Adair, Adams, Appanoose, Audubon, Black Hawk, Boone and 45 more	17 hr
Dec 1, 8:49 PM CST	Dense Fog Advisory	FSD	Buena Vista, Cherokee, Clay, Dickinson, Ida, O'Brien and 3 more	7 hr
Dec 1, 8:57 PM CST	Dense Fog Advisory	ARX	Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more	17 hr
Dec 1, 10:26 PM CST	Dense Fog Advisory	DVN	Benton, Buchanan, Delaware, Des Moines, Dubuque, Henry and 9 more	15 hr
Dec 2, 8:50 AM CST	Dense Fog Advisory	OAX	Fremont, Mills, Montgomery, Page	2 hr
Dec 2, 5:57 PM CST	Dense Fog Advisory	ARX	Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more	15 hr
Dec 2, 6:56 PM CST	Dense Fog Advisory	DVN	Benton, Buchanan, Cedar, Clinton, Delaware, Des Moines and 15 more	13 hr
Dec 2, 9:57 PM CST	Dense Fog Advisory	DMX	Adair, Adams, Appanoose, Cass, Clarke, Davis and 12 more	7 hr
Dec 3, 5:50 AM CST	Dense Fog Advisory	OAX	Harrison, Monona, Pottawattamie	4 hr
Dec 3, 3:29 PM CST	Mesoscale Discussion	SPC	Cedar, Clinton, Des Moines, Jackson, Lee, Louisa and 2 more	91 min
Dec 8, 3:53 AM CST	Winter Weather Advisory	ARX	Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more	44 hr
Dec 8, 3:44 PM CST	Wind Advisory	FSD	Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more	29 hr
Dec 8, 9:54 PM CST	Wind Advisory	OAX	Monona	19 hr
Dec 9, 3:28 PM CST	Wind Advisory	DMX	Calhoun, Emmet, Hancock, Humboldt, Kossuth, Palo Alto and 3 more	9 hr
Dec 9, 5:31 PM CST	Winter Weather Advisory	DMX	Black Hawk, Bremer, Butler, Cerro Gordo, Franklin, Grundy and 1 more	3 hr
Dec 15, 8:39 PM CST	Dense Fog Advisory	ARX	Allamakee	6 hr
Dec 17, 11:50 AM CST	Winter Storm Watch	ARX	Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more	40 hr
Dec 17, 3:31 PM CST	Winter Storm Watch	OAX	Fremont, Harrison, Mills, Monona, Montgomery, Page and 2 more	24 hr
Dec 17, 3:53 PM CST	Winter Storm Watch	DVN	Benton, Buchanan, Cedar, Clinton, Delaware, Des Moines and 15 more	48 hr
Dec 17, 4:01 PM CST	Winter Storm Watch	DMX	Adair, Adams, Appanoose, Audubon, Black Hawk, Boone and 36 more	23 hr
Dec 18, 5:11 AM CST	Winter Weather Advisory	FSD	Dickinson, Lyon, Osceola	7 hr
Dec 18, 11:15 AM CST	Winter Weather Advisory	DMX	Black Hawk, Bremer, Butler, Cerro Gordo, Franklin, Grundy and 8 more	4 hr
Dec 18, 3:24 PM CST	Winter Storm Watch	DMX	Cerro Gordo, Emmet, Hancock, Humboldt, Kossuth, Palo Alto and 3 more	13 hr
Dec 18, 3:24 PM CST	Winter Storm Warning	DMX	Adair, Adams, Appanoose, Audubon, Black Hawk, Boone and 45 more	45 hr
Dec 18, 3:34 PM CST	Winter Storm Warning	ARX	Allamakee, Clayton, Fayette	12 hr
Dec 18, 3:35 PM CST	Winter Storm Warning	DVN	Benton, Buchanan, Cedar, Delaware, Dubuque, Iowa and 6 more	13 hr
Dec 18, 3:52 PM CST	Winter Weather Advisory	FSD	Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more	44 hr
Dec 18, 3:57 PM CST	Winter Storm Warning	OAX	Fremont, Harrison, Mills, Monona, Montgomery, Page and 2 more	37 hr
Dec 19, 3:58 AM CST	Blizzard Warning	DMX	Adair, Adams, Appanoose, Audubon, Black Hawk, Boone and 42 more	41 hr
Dec 19, 4:03 AM CST	Blizzard Warning	ARX	Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more	44 hr
Dec 19, 4:03 AM CST	Winter Storm Warning	ARX	Chickasaw, Floyd, Howard, Mitchell, Winneshiek	44 hr
Dec 19, 4:09 AM CST	Blizzard Warning	DVN	Benton, Buchanan, Cedar, Clinton, Delaware, Des Moines and 15 more	44 hr
Dec 19, 4:09 AM CST	Winter Storm Warning	DVN	Clinton, Des Moines, Henry, Jefferson, Lee, Louisa and 3 more	44 hr
Dec 19, 4:19 AM CST	Winter Storm Warning	FSD	Buena Vista, Cherokee, Ida, Woodbury	12 hr
Dec 19, 11:31 AM CST	Blizzard Warning	OAX	Fremont, Harrison, Mills, Monona, Montgomery, Page and 2 more	24 hr
Dec 19, 2:08 PM CST	Mesoscale Discussion	SPC	Adair, Adams, Audubon, Benton, Black Hawk, Boone and 48 more	6 hr
Dec 19, 3:50 PM CST	Blizzard Warning	FSD	Buena Vista, Cherokee, Ida, Woodbury	20 hr
Dec 19, 3:50 PM CST	Winter Weather Advisory	FSD	Plymouth, Sioux	12 hr
Dec 19, 9:32 PM CST	Mesoscale Discussion	SPC	Adair, Adams, Audubon, Black Hawk, Boone, Bremer and 24 more	5 hr
Dec 20, 3:12 AM CST	Mesoscale Discussion	SPC	Allamakee, Clayton, Winneshiek	4 hr
Dec 20, 5:53 AM CST	Winter Weather Advisory	OAX	Harrison, Monona	6 hr
Dec 20, 7:49 AM CST	Mesoscale Discussion	SPC	Appanoose, Cedar, Davis, Des Moines, Henry, Jefferson and 10 more	4 hr
Dec 20, 10:52 AM CST	Mesoscale Discussion	SPC	Clinton, Des Moines, Scott	6 hr
Dec 20, 11:58 AM CST	Winter Weather Advisory	DMX	Adair, Adams, Audubon, Boone, Calhoun, Carroll and 21 more	9 hr
Dec 21, 12:06 AM CST	Winter Weather Advisory	DVN	Benton, Buchanan, Cedar, Clinton, Delaware, Des Moines and 15 more	10 hr
Dec 24, 3:05 AM CST	Wind Chill Advisory	FSD	Dickinson, Lyon, Osceola	33 hr
Dec 26, 3:31 PM CST	Winter Weather Advisory	FSD	Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more	36 hr
Dec 26, 3:36 PM CST	Winter Weather Advisory	DMX	Calhoun, Cerro Gordo, Crawford, Emmet, Hancock, Humboldt and 7 more	44 hr
Dec 26, 3:39 PM CST	Winter Weather Advisory	OAX	Harrison, Monona	30 hr
Dec 28, 9:17 AM CST	Winter Weather Advisory	ARX	Allamakee, Chickasaw, Floyd, Howard, Mitchell, Winneshiek	9 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	6
Winter
Blizzard Warning	5
Winter Storm Warning	7
Winter Storm Watch	5
Winter Weather Advisory	13
Cold
Wind Chill Advisory	1
Wind and dust
Wind Advisory	3
Fog and smoke
Dense Fog Advisory	12

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 2011 2013

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.