Weather alerts in Illinois, December 2019

68 weather alerts in December 2019, 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 2019. Tap one for its archive.

Alerts: 68
Warnings: 19
Watches: 4
Advisories: 40
Busiest day: December 1, 201913 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
Nov 30, 6:00 PM CST	Areal Flood Warning	LSX	Bond, Fayette	6 hr
Nov 30, 7:41 PM CST	River Flood Warning	ILX	Lawrence	4 days
Nov 30, 10:09 PM CST	River Flood Warning	IND	Wabash	3 days
Nov 30, 10:09 PM CST	River Flood Warning	IND	Wabash	6 days
Nov 30, 11:56 PM CST	Small Craft Advisory	LOT		18 hr
Dec 1, 2:48 AM CST	Dense Fog Advisory	LOT	Boone, DeKalb, DuPage, Kane, Lake, McHenry and 2 more	9 hr
Dec 1, 3:13 AM CST	Lakeshore Flood Warning	LOT		39 hr
Dec 1, 3:13 AM CST	Lakeshore Flood Advisory	LOT	Lake	30 hr
Dec 1, 5:06 AM CST	Marine Dense Fog Advisory	LOT		6 hr
Dec 1, 10:36 AM CST	River Flood Warning	PAH	Gallatin, Wayne, White	10 days
Dec 1, 11:30 AM CST	River Flood Warning	LSX	Jackson, Randolph	23 hr
Dec 1, 11:51 AM CST	River Flood Warning	PAH	Alexander, Jackson, Union	47 hr
Dec 1, 11:57 AM CST	River Flood Warning	PAH	Alexander, Pulaski	7 days
Dec 2, 9:17 AM CST	Small Craft Advisory	LOT		18 hr
Dec 3, 3:07 AM CST	Small Craft Advisory	LOT		54 hr
Dec 5, 2:44 PM CST	Small Craft Advisory	LOT		31 hr
Dec 7, 4:14 AM CST	Small Craft Advisory	LOT		35 hr
Dec 7, 9:18 PM CST	Dense Fog Advisory	PAH	Alexander, Jackson, Pulaski, Union	13 hr
Dec 8, 10:05 PM CST	Small Craft Advisory	LOT		65 hr
Dec 9, 2:02 AM CST	Dense Fog Advisory	DVN	Jo Daviess, Stephenson	7 hr
Dec 9, 3:32 AM CST	Gale Warning	LOT		22 hr
Dec 9, 11:31 AM CST	Winter Weather Advisory	DVN	Carroll, Henry, Jo Daviess, Mercer, Rock Island, Stephenson and 1 more	4 hr
Dec 9, 12:57 PM CST	Snow Squall Warning	DVN	Jo Daviess, Mercer, Rock Island	48 min
Dec 9, 1:57 PM CST	Winter Weather Advisory	LOT	Boone, DeKalb, Kane, Lake, Lee, McHenry and 2 more	109 min
Dec 11, 3:23 PM CST	Small Craft Advisory	LOT		33 hr
Dec 13, 9:11 PM CST	Dense Fog Advisory	PAH	Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 13 more	12 hr
Dec 14, 2:11 AM CST	Dense Fog Advisory	ILX	Champaign, Clark, Clay, Coles, Crawford, Cumberland and 7 more	7 hr
Dec 14, 2:50 AM CST	Dense Fog Advisory	LSX	Bond, Clinton, Fayette, Marion, Randolph, Washington	4 hr
Dec 14, 3:47 AM CST	Winter Storm Watch	ILX	Cass, Christian, Clark, Clay, Coles, Crawford and 17 more	24 hr
Dec 14, 3:54 AM CST	Winter Storm Watch	LSX	Adams, Bond, Brown, Calhoun, Clinton, Fayette and 11 more	24 hr
Dec 14, 10:08 AM CST	Small Craft Advisory	LOT		18 hr
Dec 14, 3:15 PM CST	Winter Weather Advisory	LSX	Adams, Brown, Pike, Randolph	57 hr
Dec 15, 3:35 AM CST	Winter Storm Warning	LSX	Bond, Calhoun, Clinton, Fayette, Greene, Jersey and 8 more	44 hr
Dec 15, 3:53 AM CST	Winter Storm Warning	ILX	Christian, Clark, Coles, Crawford, Cumberland, Douglas and 9 more	44 hr
Dec 15, 3:53 AM CST	Winter Weather Advisory	ILX	Cass, Champaign, Clay, DeWitt, Fulton, Knox and 18 more	44 hr
Dec 15, 4:20 AM CST	Winter Weather Advisory	PAH	Edwards, Franklin, Gallatin, Hamilton, Hardin, Jackson and 10 more	51 hr
Dec 15, 10:05 AM CST	Mesoscale Discussion	SPC	Bond, Calhoun, Clay, Clinton, Effingham, Fayette and 12 more	4 hr
Dec 15, 2:11 PM CST	Mesoscale Discussion	SPC	Bond, Calhoun, Cass, Champaign, Christian, Clark and 34 more	4 hr
Dec 15, 2:14 PM CST	Winter Weather Advisory	DVN	Hancock, Henderson, McDonough, Warren	12 hr
Dec 15, 7:52 PM CST	Winter Weather Advisory	LOT	Ford, Iroquois, Livingston	7 hr
Dec 16, 10:36 AM CST	Mesoscale Discussion	SPC	Bond, Calhoun, Christian, Clark, Clay, Clinton and 32 more	4 hr
Dec 17, 3:00 AM CST	Winter Weather Advisory	PAH	White	4 hr
Dec 17, 3:47 AM CST	Small Craft Advisory	LOT		41 hr
Dec 17, 11:54 AM CST	River Flood Warning	PAH	Gallatin, Hardin	8 days
Dec 19, 3:23 AM CST	Small Craft Advisory	LOT		12 hr
Dec 24, 1:36 AM CST	Freezing Fog Advisory	LOT	DeKalb, Ford, Grundy, Iroquois, Kankakee, Kendall and 4 more	8 hr
Dec 24, 1:58 AM CST	Dense Fog Advisory	ILX	Champaign, Christian, Clark, Clay, Coles, Crawford and 17 more	8 hr
Dec 24, 3:00 AM CST	Marine Dense Fog Advisory	LOT		9 hr
Dec 24, 3:08 AM CST	Dense Fog Advisory	LOT	Boone, DuPage, Kane, McHenry, Winnebago	7 hr
Dec 24, 3:27 AM CST	Dense Fog Advisory	DVN	Bureau, Carroll, Jo Daviess, Putnam, Stephenson, Whiteside	7 hr
Dec 26, 11:26 PM CST	Dense Fog Advisory	PAH	Alexander, Johnson, Massac, Pope, Pulaski, Union	9 hr
Dec 28, 3:26 AM CST	Small Craft Advisory	LOT		31 hr
Dec 28, 4:30 AM CST	Dense Fog Advisory	LSX	Adams, Bond, Brown, Calhoun, Clinton, Fayette and 11 more	7 hr
Dec 28, 8:52 AM CST	Dense Fog Advisory	ILX	Cass, Champaign, Christian, Clark, Coles, Crawford and 26 more	2 hr
Dec 28, 9:46 AM CST	Dense Fog Advisory	DVN	Bureau, Carroll, Hancock, Henderson, Henry, Jo Daviess and 7 more	10 hr
Dec 28, 2:28 PM CST	Flash Flood Watch	PAH	Gallatin, Hardin, Massac, Pope	33 hr
Dec 28, 11:18 PM CST	Special Weather Statement	ILX	Schuyler	27 min
Dec 29, 3:13 AM CST	Marine Dense Fog Advisory	LOT		7 hr
Dec 29, 10:18 AM CST	River Flood Warning	LSX	Fayette	45 hr
Dec 29, 10:28 AM CST	Gale Warning	LOT		44 hr
Dec 29, 10:44 AM CST	River Flood Warning	ILX	Clay, Richland	6 days
Dec 29, 11:01 AM CST	River Flood Advisory	LOT	DuPage, Will	24 hr
Dec 29, 11:01 AM CST	River Flood Advisory	LOT	Kane, Kendall	32 hr
Dec 29, 12:28 PM CST	River Flood Watch	MKX	Lake	16 hr
Dec 30, 6:24 AM CST	Special Weather Statement	DVN	Jo Daviess, Stephenson	111 min
Dec 30, 9:38 AM CST	River Flood Warning	IND	Wabash	8 days
Dec 31, 6:09 AM CST	Gale Warning	LOT		4 hr
Dec 31, 6:09 AM CST	Small Craft Advisory	LOT		21 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	3
Special Weather Statement	2
Flooding
Areal Flood Warning	1
River Flood Warning	11
Flash Flood Watch	1
River Flood Watch	1
River Flood Advisory	2
Winter
Snow Squall Warning	1
Winter Storm Warning	2
Winter Storm Watch	2
Winter Weather Advisory	8
Fog and smoke
Dense Fog Advisory	13
Freezing Fog Advisory	1
Coast and beach
Lakeshore Flood Warning	1
Lakeshore Flood Advisory	1
Marine
Gale Warning	3
Marine Dense Fog Advisory	3
Small Craft Advisory	12

By county

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

61 more counties

Nearby

Alerts in force now Tornadoes on record The radar archive 2018 2020

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.