Dense Fog Advisories in Minnesota, 2021

Dense Fog 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 1, 10:59 AM CST	Dense Fog Advisory	ABR	Big Stone, Traverse	20 hr
Jan 1, 5:56 PM CST	Dense Fog Advisory	FSD	Cottonwood, Jackson, Lincoln, Lyon, Murray, Nobles and 2 more	21 hr
Jan 1, 6:00 PM CST	Dense Fog Advisory	MPX	Anoka, Benton, Blue Earth, Brown, Carver, Chippewa and 35 more	18 hr
Jan 1, 6:36 PM CST	Dense Fog Advisory	FGF	Becker, Clay, Grant, Kittson, Mahnomen, Marshall and 7 more	16 hr
Jan 2, 12:59 AM CST	Dense Fog Advisory	DLH	Aitkin, Cass, Crow Wing, Pine	10 hr
Jan 2, 1:55 PM CST	Dense Fog Advisory	ARX	Dodge, Fillmore, Houston, Mower, Olmsted, Wabasha and 1 more	22 hr
Jan 2, 1:57 PM CST	Dense Fog Advisory	MPX	Anoka, Blue Earth, Carver, Chisago, Dakota, Faribault and 15 more	22 hr
Jan 2, 2:33 PM CST	Dense Fog Advisory	DLH	Pine	17 hr
Jan 2, 2:53 PM CST	Dense Fog Advisory	FSD	Cottonwood, Jackson, Murray, Nobles, Pipestone, Rock	39 hr
Jan 3, 2:47 PM CST	Dense Fog Advisory	MPX	Anoka, Benton, Blue Earth, Brown, Carver, Chisago and 22 more	21 hr
Jan 3, 2:58 PM CST	Dense Fog Advisory	ARX	Dodge, Fillmore, Houston, Mower, Olmsted, Wabasha and 1 more	24 hr
Jan 4, 8:41 PM CST	Dense Fog Advisory	DLH	Pine	13 hr
Jan 4, 8:44 PM CST	Dense Fog Advisory	MPX	Benton, Chisago, Isanti, Kanabec, Mille Lacs, Morrison and 1 more	13 hr
Jan 5, 1:55 PM CST	Dense Fog Advisory	MPX	Chisago, Dakota, Goodhue, Isanti, Kanabec, Mille Lacs and 1 more	19 hr
Jan 5, 1:57 PM CST	Dense Fog Advisory	DLH	Aitkin, Carlton, Cook, Itasca, Koochiching, Lake and 2 more	19 hr
Jan 5, 2:02 PM CST	Dense Fog Advisory	ARX	Houston, Wabasha, Winona	19 hr
Jan 7, 9:03 AM CST	Dense Fog Advisory	FGF	Becker, Beltrami, Clay, Clearwater, Grant, Hubbard and 12 more	26 hr
Jan 7, 10:14 AM CST	Dense Fog Advisory	MPX	Anoka, Benton, Blue Earth, Brown, Carver, Chippewa and 28 more	25 hr
Jan 7, 2:17 PM CST	Dense Fog Advisory	ABR	Big Stone, Traverse	20 hr
Jan 7, 2:42 PM CST	Dense Fog Advisory	FSD	Cottonwood, Jackson, Lincoln, Lyon, Murray, Nobles and 2 more	20 hr
Jan 7, 2:48 PM CST	Dense Fog Advisory	DLH	Aitkin, Carlton, Cass, Cook, Crow Wing, Itasca and 4 more	20 hr
Jan 7, 5:02 PM CST	Dense Fog Advisory	FGF	Wadena	18 hr
Jan 8, 11:03 AM CST	Dense Fog Advisory	FGF	Becker, Beltrami, Clay, Clearwater, Grant, Hubbard and 12 more	25 hr
Jan 8, 2:18 PM CST	Dense Fog Advisory	MPX	Anoka, Benton, Blue Earth, Brown, Carver, Chippewa and 34 more	22 hr
Jan 8, 2:30 PM CST	Dense Fog Advisory	FSD	Cottonwood, Jackson, Lincoln, Lyon, Murray, Nobles and 2 more	22 hr
Jan 8, 9:43 PM CST	Dense Fog Advisory	ABR	Big Stone, Traverse	14 hr
Jan 9, 8:59 PM CST	Dense Fog Advisory	FGF	Becker, Clearwater, Grant, Kittson, Mahnomen, Marshall and 5 more	14 hr
Jan 31, 8:55 PM CST	Dense Fog Advisory	ABR	Big Stone, Traverse	68 hr
Feb 1, 11:39 PM CST	Dense Fog Advisory	FSD	Jackson, Lincoln, Murray, Nobles, Pipestone, Rock	11 hr
Feb 21, 8:24 PM CST	Dense Fog Advisory	FSD	Cottonwood, Jackson, Lincoln, Lyon, Murray, Nobles and 2 more	7 hr
Feb 22, 12:26 AM CST	Dense Fog Advisory	MPX	Benton, Blue Earth, Brown, Chippewa, Douglas, Faribault and 24 more	6 hr
Feb 25, 10:11 PM CST	Dense Fog Advisory	ARX	Dodge, Fillmore, Houston, Mower, Olmsted, Wabasha and 1 more	9 hr
Feb 28, 6:49 AM CST	Dense Fog Advisory	ARX	Fillmore, Houston	5 hr
Apr 8, 9:05 PM CDT	Dense Fog Advisory	MPX	Douglas, Kandiyohi, Morrison, Pope, Stearns, Stevens and 2 more	12 hr
Apr 8, 11:55 PM CDT	Dense Fog Advisory	DLH	Carlton, Cook, Itasca, Koochiching, Lake, Saint Louis	15 hr
May 19, 1:59 AM CDT	Dense Fog Advisory	FSD	Nobles, Pipestone, Rock	7 hr
May 20, 10:29 PM CDT	Dense Fog Advisory	FGF	Clay, Marshall, Norman, Pennington, Polk, Red Lake and 1 more	12 hr
May 31, 2:46 AM CDT	Dense Fog Advisory	FSD	Lincoln, Nobles, Pipestone, Rock	6 hr
Jun 11, 6:50 AM CDT	Dense Fog Advisory	DLH	Carlton, Cook, Lake, Saint Louis	4 hr
Jun 11, 9:01 PM CDT	Dense Fog Advisory	DLH	Carlton, Lake, Saint Louis	7 hr
Jul 20, 2:18 AM CDT	Dense Fog Advisory	DLH	Aitkin, Cass, Crow Wing, Itasca	8 hr
Jul 20, 3:08 AM CDT	Dense Fog Advisory	FGF	Becker, Beltrami, Clearwater, Hubbard, Kittson, Lake of the Woods and 8 more	7 hr
Jul 28, 6:42 AM CDT	Dense Fog Advisory	DLH	Carlton, Lake, Saint Louis	3 hr
Jul 31, 1:02 AM CDT	Dense Fog Advisory	FSD	Jackson, Murray, Nobles, Pipestone, Rock	8 hr
Aug 8, 8:24 AM CDT	Dense Fog Advisory	DLH	Carlton, Lake, Saint Louis	4 hr
Aug 8, 11:12 PM CDT	Dense Fog Advisory	DLH	Aitkin, Carlton, Crow Wing, Pine, Saint Louis	11 hr
Aug 10, 3:38 AM CDT	Dense Fog Advisory	DLH	Carlton, Cook, Lake, Saint Louis	6 hr
Aug 28, 3:12 AM CDT	Dense Fog Advisory	DLH	Carlton, Saint Louis	6 hr
Sep 30, 5:22 AM CDT	Dense Fog Advisory	DLH	Carlton, Saint Louis	5 hr
Oct 2, 12:42 AM CDT	Dense Fog Advisory	DLH	Aitkin, Carlton, Cass, Crow Wing, Itasca, Saint Louis	8 hr
Oct 3, 2:49 PM CDT	Dense Fog Advisory	MPX	Anoka, Benton, Carver, Chisago, Dakota, Freeborn and 20 more	20 hr
Oct 3, 2:54 PM CDT	Dense Fog Advisory	DLH	Aitkin, Carlton, Cass, Cook, Crow Wing, Itasca and 3 more	21 hr
Oct 4, 8:27 AM CDT	Dense Fog Advisory	ARX	Dodge, Mower, Olmsted, Wabasha	118 min
Oct 4, 2:25 PM CDT	Dense Fog Advisory	DLH	Aitkin, Carlton, Cass, Cook, Crow Wing, Itasca and 3 more	22 hr
Oct 4, 2:38 PM CDT	Dense Fog Advisory	ARX	Dodge, Mower, Olmsted, Wabasha	18 hr
Oct 4, 2:43 PM CDT	Dense Fog Advisory	MPX	Anoka, Benton, Blue Earth, Carver, Chisago, Dakota and 22 more	19 hr
Oct 5, 3:36 PM CDT	Dense Fog Advisory	DLH	Carlton, Cook, Lake, Saint Louis	18 hr
Oct 6, 10:02 AM CDT	Dense Fog Advisory	DLH	Carlton, Cook, Lake, Saint Louis	118 min
Oct 6, 3:23 PM CDT	Dense Fog Advisory	DLH	Carlton, Cook, Lake, Saint Louis	21 hr
Oct 7, 3:36 PM CDT	Dense Fog Advisory	DLH	Carlton, Lake, Saint Louis	12 hr
Oct 8, 2:56 PM CDT	Dense Fog Advisory	DLH	Carlton, Cook, Lake, Saint Louis	22 hr
Oct 8, 9:34 PM CDT	Dense Fog Advisory	ARX	Fillmore, Houston, Winona	12 hr
Oct 9, 4:26 PM CDT	Dense Fog Advisory	DLH	Carlton, Cook, Lake, Saint Louis	12 hr
Oct 28, 1:41 AM CDT	Dense Fog Advisory	FGF	Clay, Kittson, Marshall, Norman, Polk, Wilkin	7 hr
Oct 29, 1:06 AM CDT	Dense Fog Advisory	FGF	Becker, Beltrami, Clay, Clearwater, Grant, Hubbard and 12 more	10 hr
Oct 29, 3:25 AM CDT	Dense Fog Advisory	DLH	Cass, Crow Wing, Itasca, Koochiching	6 hr
Oct 29, 11:06 AM CDT	Dense Fog Advisory	FGF	Beltrami, Hubbard, Lake of the Woods, Wadena	114 min
Oct 30, 12:47 AM CDT	Dense Fog Advisory	DLH	Carlton, Pine, Saint Louis	9 hr
Nov 4, 4:23 AM CDT	Dense Fog Advisory	FSD	Cottonwood, Jackson, Lincoln, Lyon, Murray, Nobles and 2 more	10 hr
Nov 4, 9:24 PM CDT	Dense Fog Advisory	FSD	Lincoln, Murray, Nobles, Pipestone, Rock	5 hr
Dec 15, 2:56 AM CST	Dense Fog Advisory	FSD	Cottonwood, Jackson, Lincoln, Lyon, Murray, Nobles and 2 more	6 hr
Dec 15, 3:34 AM CST	Dense Fog Advisory	MPX	Anoka, Benton, Blue Earth, Brown, Carver, Chippewa and 36 more	11 hr
Dec 15, 3:48 AM CST	Dense Fog Advisory	ARX	Dodge, Fillmore, Houston, Mower, Olmsted, Wabasha and 1 more	8 hr
Dec 15, 3:54 AM CST	Dense Fog Advisory	ABR	Big Stone, Traverse	11 hr
Dec 15, 3:56 AM CST	Dense Fog Advisory	DLH	Aitkin, Carlton, Cass, Cook, Crow Wing, Itasca and 4 more	16 hr
Dec 15, 6:43 AM CST	Dense Fog Advisory	FGF	Becker, Beltrami, Clay, Clearwater, Grant, Hubbard and 12 more	13 hr
Dec 15, 9:01 AM CST	Dense Fog Advisory	FSD	Cottonwood, Jackson, Lincoln, Lyon, Murray, Nobles and 2 more	119 min
Dec 15, 3:34 PM CST	Dense Fog Advisory	FGF	Becker, Clay, Grant, Kittson, Mahnomen, Marshall and 7 more	4 hr
Dec 24, 7:46 AM CST	Dense Fog Advisory	MPX	Faribault, Freeborn, Steele	4 hr
Dec 24, 7:47 AM CST	Dense Fog Advisory	ARX	Dodge, Fillmore, Mower, Olmsted	6 hr
Dec 30, 8:47 PM CST	Dense Fog Advisory	ARX	Dodge, Fillmore, Mower, Olmsted	14 hr
Dec 31, 4:58 AM CST	Dense Fog Advisory	MPX	Freeborn, Rice, Steele, Waseca	3 hr

By county

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

47 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.