Weather alerts in Illinois, October 2020

Weather alerts by county

Each county as a circle sized by its count in October 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
Oct 1, 3:25 AM CDT	Frost Advisory	LOT	Boone, McHenry, Winnebago	30 hr
Oct 1, 3:38 AM CDT	Small Craft Advisory	LOT		42 hr
Oct 1, 3:49 AM CDT	Frost Advisory	DVN	Carroll, Jo Daviess, Stephenson	28 hr
Oct 3, 3:49 AM CDT	Small Craft Advisory	LOT		47 hr
Oct 4, 2:00 AM CDT	Frost Advisory	PAH	Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 13 more	30 hr
Oct 4, 2:19 AM CDT	Frost Advisory	ILX	Cass, Champaign, Christian, Clark, Clay, Coles and 29 more	30 hr
Oct 4, 2:54 AM CDT	Frost Advisory	DVN	Bureau, Carroll, Hancock, Henderson, Henry, Jo Daviess and 7 more	29 hr
Oct 4, 3:08 AM CDT	Frost Advisory	LSX	Adams, Bond, Brown, Calhoun, Clinton, Fayette and 11 more	29 hr
Oct 4, 3:46 AM CDT	Frost Advisory	LOT	Boone, Cook, DeKalb, DuPage, Ford, Grundy and 12 more	28 hr
Oct 5, 3:09 AM CDT	Small Craft Advisory	LOT		31 hr
Oct 6, 9:33 AM CDT	Small Craft Advisory	LOT		23 hr
Oct 8, 3:45 AM CDT	Small Craft Advisory	LOT		3 days
Oct 10, 3:19 AM CDT	Small Craft Advisory	LOT		34 hr
Oct 11, 6:33 AM CDT	Dense Fog Advisory	ILX	Christian, Clark, Clay, Coles, Crawford, Cumberland and 6 more	3 hr
Oct 11, 2:48 PM CDT	Small Craft Advisory	LOT		34 hr
Oct 12, 3:46 AM CDT	Gale Warning	LOT		15 hr
Oct 12, 6:00 AM CDT	Dense Fog Advisory	PAH	Edwards, Gallatin, Hardin, Massac, Pope, Saline and 2 more	2 hr
Oct 12, 6:35 AM CDT	Dense Fog Advisory	ILX	Clark, Crawford, Lawrence	2 hr
Oct 12, 11:41 AM CDT	Special Weather Statement	LOT	Ogle	19 min
Oct 12, 2:00 PM CDT	Special Weather Statement	LOT	Cook, Kankakee	45 min
Oct 12, 2:44 PM CDT	Special Marine Warning	LOT		61 min
Oct 13, 3:18 AM CDT	Small Craft Advisory	LOT		16 hr
Oct 13, 2:42 PM CDT	Fire Weather Watch	LSX	Adams, Bond, Brown, Calhoun, Fayette, Greene and 7 more	13 hr
Oct 13, 2:59 PM CDT	Fire Weather Watch	ILX	Cass, Christian, Menard, Morgan, Sangamon, Schuyler and 1 more	13 hr
Oct 13, 3:22 PM CDT	Gale Warning	LOT		28 hr
Oct 13, 3:22 PM CDT	Small Craft Advisory	LOT		12 hr
Oct 13, 3:22 PM CDT	Small Craft Advisory	LOT		61 hr
Oct 14, 3:33 AM CDT	Wind Advisory	LOT	Boone, Cook, DeKalb, DuPage, Ford, Grundy and 12 more	15 hr
Oct 14, 3:44 AM CDT	Red Flag Warning	LOT	Cook, DuPage, Ford, Grundy, Iroquois, Kane and 5 more	15 hr
Oct 14, 4:01 AM CDT	Red Flag Warning	LSX	Calhoun, Greene, Jersey, Macoupin, Madison, Monroe and 2 more	14 hr
Oct 14, 4:10 AM CDT	Wind Advisory	ILX	Cass, Champaign, DeWitt, Douglas, Fulton, Knox and 13 more	15 hr
Oct 14, 4:19 AM CDT	Wind Advisory	DVN	Bureau, Carroll, Hancock, Henderson, Henry, Jo Daviess and 7 more	15 hr
Oct 14, 4:19 AM CDT	Red Flag Warning	ILX	Cass, Champaign, Christian, Coles, DeWitt, Douglas and 15 more	15 hr
Oct 14, 7:41 PM CDT	Freeze Watch	LOT	Boone, Cook, DeKalb, DuPage, Ford, Grundy and 12 more	7 hr
Oct 15, 2:35 AM CDT	Freeze Warning	LOT	Boone, Cook, DeKalb, DuPage, Ford, Grundy and 12 more	30 hr
Oct 15, 2:58 AM CDT	Frost Advisory	PAH	Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 13 more	30 hr
Oct 15, 3:15 AM CDT	Freeze Warning	DVN	Bureau, Carroll, Hancock, Henderson, Henry, Jo Daviess and 7 more	29 hr
Oct 15, 3:15 AM CDT	Freeze Warning	ILX	Cass, Champaign, Christian, Clark, Clay, Coles and 29 more	30 hr
Oct 15, 3:35 AM CDT	Frost Advisory	LSX	Adams, Bond, Brown, Calhoun, Clinton, Fayette and 11 more	29 hr
Oct 15, 2:08 PM CDT	Freeze Warning	LSX	Bond, Clinton, Fayette, Marion, Monroe, Montgomery and 3 more	19 hr
Oct 15, 2:13 PM CDT	Freeze Warning	PAH	Edwards, Jackson, Jefferson, Perry, Wabash, Wayne	19 hr
Oct 15, 3:20 PM CDT	Gale Watch	LOT		13 hr
Oct 15, 3:20 PM CDT	Small Craft Advisory	LOT		30 hr
Oct 16, 2:56 AM CDT	Frost Advisory	PAH	Edwards, Franklin, Gallatin, Hamilton, Hardin, Jefferson and 8 more	29 hr
Oct 16, 3:43 AM CDT	Frost Advisory	ILX	Champaign, Clark, Clay, Coles, Crawford, Cumberland and 7 more	28 hr
Oct 16, 3:52 AM CDT	Fire Weather Watch	ILX	Cass, Champaign, Christian, Clark, Clay, Coles and 23 more	11 hr
Oct 16, 3:52 AM CDT	Fire Weather Watch	LOT	Ford, Iroquois, Kankakee, Livingston	11 hr
Oct 16, 3:56 AM CDT	Gale Warning	LOT		47 hr
Oct 16, 4:45 AM CDT	Fire Weather Watch	LSX	Bond, Calhoun, Clinton, Fayette, Greene, Jersey and 9 more	10 hr
Oct 16, 1:43 PM CDT	Wind Advisory	DVN	Bureau, Carroll, Hancock, Henderson, Henry, Jo Daviess and 7 more	28 hr
Oct 16, 2:29 PM CDT	Fire Weather Watch	ILX	Fulton, Knox, Marshall, Peoria, Schuyler, Stark	12 hr
Oct 16, 2:29 PM CDT	Red Flag Warning	ILX	Cass, Champaign, Christian, Clark, Clay, Coles and 29 more	30 hr
Oct 16, 2:29 PM CDT	Wind Advisory	LSX	Adams, Brown, Calhoun, Greene, Jersey, Macoupin and 2 more	28 hr
Oct 16, 2:34 PM CDT	Red Flag Warning	LSX	Adams, Bond, Brown, Calhoun, Clinton, Fayette and 11 more	27 hr
Oct 16, 2:40 PM CDT	Wind Advisory	LOT	Boone, Cook, DeKalb, DuPage, Ford, Grundy and 12 more	28 hr
Oct 16, 2:52 PM CDT	Fire Weather Watch	LOT	Cook, DeKalb, DuPage, Grundy, Kane, Kendall and 3 more	12 hr
Oct 16, 2:52 PM CDT	Red Flag Warning	LOT	Cook, DeKalb, DuPage, Ford, Grundy, Iroquois and 7 more	29 hr
Oct 16, 3:03 PM CDT	Wind Advisory	ILX	Cass, Champaign, Christian, Coles, DeWitt, Douglas and 21 more	28 hr
Oct 16, 3:25 PM CDT	Red Flag Warning	PAH	Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 13 more	28 hr
Oct 17, 9:11 PM CDT	Small Craft Advisory	LOT		22 hr
Oct 19, 8:58 AM CDT	Areal Flood Advisory	PAH	Alexander, Massac, Pope, Pulaski	3 hr
Oct 19, 2:45 PM CDT	Small Craft Advisory	LOT		6 hr
Oct 20, 3:51 AM CDT	Small Craft Advisory	LOT		30 hr
Oct 20, 9:57 PM CDT	Areal Flood Advisory	LSX	Bond, Fayette	3 hr
Oct 21, 1:43 AM CDT	Dense Fog Advisory	PAH	Alexander	7 hr
Oct 21, 3:35 PM CDT	Small Craft Advisory	LOT		65 hr
Oct 21, 9:34 PM CDT	Dense Fog Advisory	LSX	Adams, Bond, Brown, Calhoun, Fayette, Greene and 5 more	10 hr
Oct 21, 10:48 PM CDT	Special Weather Statement	LOT	Grundy, Will	42 min
Oct 22, 12:08 AM CDT	Special Weather Statement	DVN	Hancock	37 min
Oct 22, 12:58 AM CDT	Dense Fog Advisory	ILX	Cass, Champaign, Christian, Clark, Clay, Coles and 26 more	6 hr
Oct 22, 2:35 AM CDT	Dense Fog Advisory	DVN	Bureau, Hancock, Henderson, Henry, McDonough, Mercer and 3 more	9 hr
Oct 22, 2:57 AM CDT	Special Weather Statement	DVN	Rock Island	48 min
Oct 22, 3:30 AM CDT	Dense Fog Advisory	LOT	Ford, Grundy, Iroquois, Kankakee, LaSalle, Livingston and 1 more	9 hr
Oct 22, 4:05 AM CDT	Small Craft Advisory	LOT		59 hr
Oct 22, 6:29 AM CDT	Areal Flood Advisory	LOT	Cook, DeKalb, DuPage, Kane, Kendall, LaSalle and 2 more	3 hr
Oct 22, 6:35 AM CDT	River Flood Advisory	LOT	DuPage, Will	24 hr
Oct 22, 9:42 AM CDT	Marine Dense Fog Advisory	LOT		5 hr
Oct 22, 3:34 PM CDT	Dense Fog Advisory	DVN	Jo Daviess, Stephenson	11 min
Oct 22, 3:45 PM CDT	Dense Fog Advisory	DVN	Jo Daviess, Stephenson	6 hr
Oct 22, 4:53 PM CDT	Mesoscale Discussion	SPC	Carroll, Jo Daviess, Stephenson, Winnebago	2 hr
Oct 23, 12:28 PM CDT	Special Weather Statement	ILX	Clark, Clay, Crawford, Jasper	32 min
Oct 23, 12:55 PM CDT	Special Weather Statement	ILX	Crawford	35 min
Oct 23, 1:07 PM CDT	Special Weather Statement	ILX	Clark	23 min
Oct 23, 1:07 PM CDT	Special Weather Statement	PAH	Franklin, Jackson, Jefferson, Wayne, Williamson	38 min
Oct 23, 1:14 PM CDT	Special Weather Statement	ILX	Lawrence	16 min
Oct 23, 1:30 PM CDT	Mesoscale Discussion	SPC	Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 11 more	3 hr
Oct 23, 1:47 PM CDT	Special Weather Statement	ILX	Crawford	13 min
Oct 23, 1:59 PM CDT	Special Weather Statement	ILX	Lawrence	16 min
Oct 23, 2:01 PM CDT	Special Weather Statement	PAH	White	44 min
Oct 23, 2:08 PM CDT	Severe Thunderstorm Warning	PAH	Alexander, Pulaski, Union	22 min
Oct 23, 2:11 PM CDT	Severe Thunderstorm Warning	ILX	Lawrence	17 min
Oct 23, 2:17 PM CDT	Severe Thunderstorm Warning	PAH	Edwards, Wabash, Wayne, White	43 min
Oct 23, 2:39 PM CDT	Severe Thunderstorm Warning	PAH	Edwards, Wabash	36 min
Oct 23, 2:40 PM CDT	Severe Thunderstorm Warning	ILX	Lawrence	20 min
Oct 25, 4:09 PM CDT	Small Craft Advisory	LOT		29 hr
Oct 26, 9:41 AM CDT	Special Weather Statement	DVN	Bureau, Putnam	64 min
Oct 28, 2:25 AM CDT	Flood Watch	PAH	Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 13 more	32 hr
Oct 28, 2:45 PM CDT	Flood Watch	ILX	Lawrence, Richland	19 hr
Oct 28, 3:01 PM CDT	Flood Watch	LSX	Randolph	19 hr
Oct 28, 3:07 PM CDT	Lakeshore Flood Advisory	LOT	Cook, Lake	43 hr
Oct 28, 3:36 PM CDT	Small Craft Advisory	LOT		21 hr
Oct 29, 2:05 AM CDT	Areal Flood Advisory	PAH	Alexander, Union	3 hr
Oct 29, 3:26 AM CDT	Areal Flood Advisory	PAH	Gallatin, Hardin, Johnson, Massac, Pope, Pulaski and 3 more	6 hr
Oct 29, 12:13 PM CDT	Gale Warning	LOT		7 hr
Oct 29, 12:13 PM CDT	Small Craft Advisory	LOT		25 hr
Oct 30, 3:21 AM CDT	Gale Watch	LOT		12 hr
Oct 30, 1:47 PM CDT	Freeze Watch	PAH	Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 13 more	37 hr
Oct 30, 3:34 PM CDT	Gale Warning	LOT		54 hr
Oct 31, 10:44 AM CDT	Wind Advisory	LOT	Boone, Cook, DeKalb, DuPage, Ford, Grundy and 12 more	30 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	5
Mesoscale Discussion	2
Special Weather Statement	14
Flooding
Flood Watch	3
Areal Flood Advisory	5
River Flood Advisory	1
Cold
Freeze Warning	5
Freeze Watch	2
Frost Advisory	11
Wind and dust
Wind Advisory	8
Fire
Red Flag Warning	7
Fire Weather Watch	7
Fog and smoke
Dense Fog Advisory	10
Coast and beach
Lakeshore Flood Advisory	1
Marine
Gale Warning	5
Special Marine Warning	1
Gale Watch	2
Marine Dense Fog Advisory	1
Small Craft Advisory	19

By county

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

62 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. Warning verification from the Mesonet's Cow. Rebuilt daily.