Weather alerts in Illinois, December 2018

163 weather alerts in December 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 December 2018. Tap one for its archive.

Alerts: 163
Warnings: 77
Watches: 3
Advisories: 72
Busiest day: December 1, 201857 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, 8:09 PM CST	Dense Fog Advisory	ILX	Champaign, DeWitt, McLean, Piatt, Vermilion, Woodford	8 hr
Nov 30, 8:09 PM CST	Dense Fog Advisory	LOT	Ford, Iroquois, Livingston	10 hr
Dec 1, 3:42 AM CST	Lakeshore Flood Advisory	LOT	Lake	17 hr
Dec 1, 3:54 AM CST	Severe Thunderstorm Warning	LSX	Randolph	29 min
Dec 1, 4:14 AM CST	Special Weather Statement	PAH	Alexander, Jackson, Perry, Pulaski, Union	46 min
Dec 1, 7:28 AM CST	Wind Advisory	DVN	Carroll, Henry, Jo Daviess, Mercer, Rock Island, Stephenson and 1 more	7 hr
Dec 1, 9:45 AM CST	River Flood Warning	ILX	Fulton, Knox	3 days
Dec 1, 10:58 AM CST	River Flood Advisory	LOT	Will	20 hr
Dec 1, 10:58 AM CST	River Flood Advisory	LOT	Kane, Kendall	36 hr
Dec 1, 10:58 AM CST	River Flood Advisory	LOT	Iroquois	24 hr
Dec 1, 11:05 AM CST	River Flood Watch	LOT	Lake	20 hr
Dec 1, 12:35 PM CST	River Flood Warning	IND	Clark, Crawford	5 days
Dec 1, 12:35 PM CST	River Flood Warning	IND	Crawford, Lawrence	9 days
Dec 1, 12:35 PM CST	River Flood Warning	IND	Crawford, Lawrence	9 days
Dec 1, 12:36 PM CST	Dense Fog Advisory	DVN	Bureau, Hancock, Henderson, Henry, McDonough, Mercer and 4 more	20 hr
Dec 1, 12:39 PM CST	Dense Fog Advisory	ILX	Fulton, Knox, Stark	4 hr
Dec 1, 1:48 PM CST	Mesoscale Discussion	SPC	Adams, Bond, Brown, Calhoun, Cass, Christian and 26 more	117 min
Dec 1, 2:16 PM CST	Tornado Watch	SPC	Adams, Brown, Calhoun, Cass, Christian, DeWitt and 23 more	7 hr
Dec 1, 2:17 PM CST	Severe Thunderstorm Warning	LSX	Pike	43 min
Dec 1, 2:21 PM CST	Severe Thunderstorm Warning	ILX	Schuyler	39 min
Dec 1, 2:21 PM CST	Severe Thunderstorm Warning	LSX	Adams, Brown	20 min
Dec 1, 2:28 PM CST	Severe Thunderstorm Warning	LSX	Pike	30 min
Dec 1, 2:37 PM CST	Tornado Warning	LSX	Pike	25 min
Dec 1, 2:49 PM CST	Tornado Warning	ILX	Cass, Morgan, Scott	41 min
Dec 1, 2:58 PM CST	Severe Thunderstorm Warning	ILX	Schuyler	14 min
Dec 1, 3:03 PM CST	Special Weather Statement	DVN	Henderson	27 min
Dec 1, 3:04 PM CST	Tornado Warning	ILX	Schuyler	11 min
Dec 1, 3:05 PM CST	Tornado Warning	DVN	McDonough	25 min
Dec 1, 3:24 PM CST	Special Weather Statement	DVN	Henderson	36 min
Dec 1, 3:24 PM CST	Tornado Warning	ILX	Cass, Mason, Schuyler	51 min
Dec 1, 3:34 PM CST	Severe Thunderstorm Warning	LSX	Greene, Jersey	41 min
Dec 1, 3:40 PM CST	Severe Thunderstorm Warning	DVN	McDonough	35 min
Dec 1, 3:42 PM CST	Tornado Warning	DVN	McDonough	33 min
Dec 1, 3:47 PM CST	Tornado Warning	ILX	Fulton, Mason, Schuyler	43 min
Dec 1, 3:57 PM CST	Tornado Warning	ILX	Knox, Peoria	38 min
Dec 1, 3:57 PM CST	Severe Thunderstorm Warning	LSX	Macoupin, Montgomery	48 min
Dec 1, 4:00 PM CST	Tornado Warning	DVN	McDonough, Warren	30 min
Dec 1, 4:08 PM CST	Tornado Warning	LSX	Macoupin, Montgomery	37 min
Dec 1, 4:22 PM CST	Tornado Warning	ILX	Fulton, Mason, Peoria, Tazewell	38 min
Dec 1, 4:28 PM CST	Tornado Warning Tornado observed	LSX	Montgomery	17 min
Dec 1, 4:32 PM CST	Tornado Warning Tornado observedConsiderable damage threat	LSX	Montgomery	28 min
Dec 1, 4:37 PM CST	Tornado Warning	ILX	Christian	38 min
Dec 1, 4:39 PM CST	Tornado Warning	ILX	Christian	51 min
Dec 1, 4:39 PM CST	Severe Thunderstorm Warning	LSX	Macoupin	51 min
Dec 1, 4:40 PM CST	Special Weather Statement	DVN	Henry	35 min
Dec 1, 4:42 PM CST	Tornado Warning	ILX	Mason	48 min
Dec 1, 4:43 PM CST	Tornado Warning	LSX	Montgomery	14 min
Dec 1, 4:53 PM CST	Tornado Warning	ILX	Fulton, Peoria	37 min
Dec 1, 5:12 PM CST	Special Weather Statement	DVN	Henry	33 min
Dec 1, 5:12 PM CST	Tornado Warning	ILX	Mason, Tazewell	48 min
Dec 1, 5:15 PM CST	Severe Thunderstorm Warning	ILX	Logan, Menard, Sangamon	45 min
Dec 1, 5:15 PM CST	Tornado Warning EmergencyTornado observedCatastrophic damage threat	ILX	Christian	30 min
Dec 1, 5:17 PM CST	Mesoscale Discussion	SPC	Cass, Christian, DeWitt, Ford, Fulton, Knox and 17 more	88 min
Dec 1, 5:29 PM CST	Severe Thunderstorm Warning	ILX	Peoria	46 min
Dec 1, 5:43 PM CST	Tornado Warning Tornado observedConsiderable damage threat	ILX	Christian, Macon	32 min
Dec 1, 5:46 PM CST	Severe Thunderstorm Warning	ILX	Tazewell	44 min
Dec 1, 5:54 PM CST	Severe Thunderstorm Warning	ILX	Logan, Menard	51 min
Dec 1, 6:13 PM CST	Tornado Warning	ILX	DeWitt, Macon	32 min
Dec 1, 6:27 PM CST	Flash Flood Warning	ILX	Tazewell	3 hr
Dec 1, 6:42 PM CST	Tornado Warning	ILX	DeWitt, McLean	33 min
Dec 1, 7:13 PM CST	Tornado Warning Tornado observedConsiderable damage threat	ILX	McLean	32 min
Dec 1, 7:47 PM CST	Tornado Warning Tornado observed	ILX	McLean	28 min
Dec 1, 8:07 PM CST	Special Weather Statement	LOT	Ford, Livingston	23 min
Dec 1, 8:38 PM CST	River Flood Warning	DVN	Hancock, McDonough	72 hr
Dec 1, 8:53 PM CST	River Flood Warning	ILX	Clay, Richland	13 hr
Dec 2, 3:27 AM CST	Dense Fog Advisory	LOT	DeKalb, DuPage, Kane, Lake, Lee, McHenry and 1 more	4 hr
Dec 2, 3:41 AM CST	River Flood Advisory	LOT	Lake	5 days
Dec 2, 3:41 AM CST	River Flood Advisory	LOT	Lake	6 days
Dec 2, 3:41 AM CST	River Flood Advisory	LOT	Cook	7 hr
Dec 2, 3:41 AM CST	River Flood Advisory	LOT	Will	39 hr
Dec 2, 3:44 AM CST	Small Craft Advisory	LOT		53 hr
Dec 2, 5:33 AM CST	Marine Dense Fog Advisory	LOT		84 min
Dec 2, 6:40 AM CST	River Flood Advisory	LOT	LaSalle	34 hr
Dec 2, 6:43 AM CST	River Flood Warning	LOT	Lake	6 days
Dec 2, 6:43 AM CST	River Flood Warning	LOT	Lake	7 days
Dec 2, 6:43 AM CST	River Flood Warning	LOT	Kane, Kendall	53 hr
Dec 2, 7:13 AM CST	River Flood Warning	LOT	Will	20 hr
Dec 2, 10:12 AM CST	River Flood Advisory	LOT	Boone	10 hr
Dec 2, 10:12 AM CST	River Flood Advisory	LOT	Ogle	3 days
Dec 2, 10:48 AM CST	River Flood Warning	LOT	Cook	49 hr
Dec 2, 11:14 AM CST	River Flood Warning	LOT	Bureau, LaSalle, Putnam	3 days
Dec 2, 11:18 AM CST	River Flood Advisory	LOT	LaSalle	3 days
Dec 2, 11:39 AM CST	River Flood Advisory	LOT	Cook	45 hr
Dec 2, 6:29 PM CST	River Flood Warning	ILX	Clay, Richland	25 hr
Dec 2, 8:32 PM CST	River Flood Warning	DVN	Henry, Rock Island, Whiteside	4 days
Dec 2, 8:32 PM CST	River Flood Warning	DVN	Henry, Rock Island	4 days
Dec 2, 9:31 PM CST	River Flood Warning	ILX	Cass, Fulton, Mason	13 days
Dec 2, 9:31 PM CST	River Flood Warning	ILX	Brown, Cass, Morgan, Schuyler	11 days
Dec 3, 11:32 AM CST	River Flood Warning	PAH	Alexander, Pulaski	8 days
Dec 3, 4:41 PM CST	River Flood Advisory	LOT	Lee	22 hr
Dec 3, 7:13 PM CST	River Flood Advisory	LOT	Boone	41 hr
Dec 4, 7:19 AM CST	Winter Weather Advisory	DVN	Henderson, Henry, Mercer, Rock Island, Warren	3 hr
Dec 4, 10:49 AM CST	River Flood Warning	LSX	Calhoun	22 hr
Dec 4, 4:02 PM CST	Winter Weather Advisory	PAH	Franklin, Gallatin, Hamilton, Hardin, Jackson, Jefferson and 7 more	8 hr
Dec 4, 7:01 PM CST	Special Weather Statement	DVN	Bureau, Henry, Putnam, Rock Island	119 min
Dec 4, 7:22 PM CST	Winter Weather Advisory	DVN	Bureau, Henry, Putnam	4 hr
Dec 4, 7:49 PM CST	Winter Weather Advisory	LOT	Ford, Grundy, Iroquois, Kankakee, Kendall, LaSalle and 1 more	7 hr
Dec 4, 7:59 PM CST	Special Weather Statement	ILX	Champaign	46 min
Dec 4, 10:08 PM CST	Special Weather Statement	DVN	Rock Island	82 min
Dec 5, 9:51 AM CST	River Flood Warning	PAH	Gallatin, Hardin	67 hr
Dec 5, 9:29 PM CST	Small Craft Advisory	LOT		31 hr
Dec 6, 11:36 AM CST	River Flood Warning	LSX	Jackson, Randolph	23 hr
Dec 9, 9:45 PM CST	Dense Fog Advisory	LOT	Boone, DeKalb, DuPage, Ford, Grundy, Iroquois and 10 more	16 hr
Dec 10, 12:42 AM CST	Dense Fog Advisory	DVN	Bureau, Carroll, Hancock, Henderson, Henry, Jo Daviess and 7 more	9 hr
Dec 10, 3:12 AM CST	Dense Fog Advisory	ILX	Champaign, Christian, Clark, Clay, Coles, Crawford and 20 more	11 hr
Dec 10, 5:22 PM CST	Dense Fog Advisory	ILX	Champaign, Coles, Douglas, Edgar, Moultrie, Piatt and 1 more	6 hr
Dec 10, 6:39 PM CST	Dense Fog Advisory	LOT	Ford, Iroquois	5 hr
Dec 11, 12:08 PM CST	Winter Weather Advisory	DVN	Carroll, Jo Daviess, Rock Island, Stephenson, Whiteside	21 hr
Dec 11, 1:12 PM CST	Winter Weather Advisory	LOT	Boone, DeKalb, Kane, Lake, Lee, McHenry and 2 more	14 hr
Dec 12, 3:31 AM CST	Small Craft Advisory	LOT		8 hr
Dec 13, 9:42 AM CST	Dense Fog Advisory	DVN	Bureau, Henderson, Henry, Mercer, Putnam, Warren	3 hr
Dec 13, 3:06 PM CST	Dense Fog Advisory	ILX	Champaign, DeWitt, Fulton, Knox, Logan, McLean and 9 more	5 hr
Dec 13, 4:56 PM CST	Dense Fog Advisory	DVN	Bureau, Hancock, Henderson, Henry, McDonough, Mercer and 3 more	3 hr
Dec 13, 11:58 PM CST	Dense Fog Advisory	DVN	Carroll, Hancock, Henderson, Henry, Jo Daviess, McDonough and 5 more	9 hr
Dec 14, 2:59 AM CST	Marine Dense Fog Advisory	LOT		12 hr
Dec 14, 1:43 PM CST	Dense Fog Advisory	ILX	Cass, DeWitt, Fulton, Knox, Logan, McLean and 11 more	13 hr
Dec 14, 3:03 PM CST	Marine Dense Fog Advisory	LOT		19 hr
Dec 14, 3:57 PM CST	Dense Fog Advisory	DVN	Bureau, Carroll, Hancock, Henderson, Henry, McDonough and 6 more	11 hr
Dec 14, 4:10 PM CST	Dense Fog Advisory	LOT	Boone, DeKalb, DuPage, Ford, Grundy, Iroquois and 10 more	18 hr
Dec 14, 4:59 PM CST	Dense Fog Advisory	LSX	Adams, Brown, Pike	6 hr
Dec 14, 7:17 PM CST	River Flood Warning	ILX	Clay, Richland	6 days
Dec 15, 1:35 AM CST	Areal Flood Advisory	PAH	Gallatin, Hamilton, Saline, White	6 hr
Dec 15, 2:04 AM CST	Flash Flood Warning	PAH	Franklin	5 hr
Dec 15, 5:05 AM CST	Areal Flood Advisory	PAH	Edwards, Hamilton, Jefferson, Wabash, Wayne, White	4 hr
Dec 15, 9:58 AM CST	Areal Flood Advisory	ILX	Clay, Crawford, Effingham, Jasper, Lawrence, Richland	10 hr
Dec 15, 11:09 AM CST	River Flood Warning	ILX	Lawrence	3 days
Dec 15, 3:03 PM CST	River Flood Warning	PAH	Jackson	7 days
Dec 15, 7:37 PM CST	River Flood Warning	PAH	Wayne, White	11 hr
Dec 15, 9:42 PM CST	River Flood Warning	IND	Wabash	5 days
Dec 15, 9:42 PM CST	River Flood Warning	IND	Wabash	7 days
Dec 15, 9:42 PM CST	River Flood Warning	IND	Edwards, Gallatin, Wabash, White	37 hr
Dec 16, 12:54 AM CST	Dense Fog Advisory	LOT	Boone, DeKalb, DuPage, Ford, Grundy, Iroquois and 5 more	9 hr
Dec 16, 3:06 AM CST	Small Craft Advisory	LOT		36 hr
Dec 16, 5:13 AM CST	Marine Dense Fog Advisory	LOT		5 hr
Dec 16, 7:45 PM CST	River Flood Warning	PAH	Wayne, White	9 hr
Dec 17, 9:52 AM CST	River Flood Warning	PAH	Gallatin, Wayne, White	9 days
Dec 20, 3:59 AM CST	Gale Warning	LOT		38 hr
Dec 20, 3:59 AM CST	Small Craft Advisory	LOT		53 hr
Dec 20, 9:34 AM CST	Dense Fog Advisory	LOT	Boone, DeKalb, DuPage, Kane, Lake, LaSalle and 4 more	8 hr
Dec 20, 11:41 AM CST	Marine Dense Fog Advisory	LOT		9 hr
Dec 21, 10:41 AM CST	River Flood Warning	PAH	Gallatin, Hardin	22 days
Dec 23, 9:55 AM CST	Small Craft Advisory	LOT		30 hr
Dec 26, 3:18 AM CST	Small Craft Advisory	LOT		3 days
Dec 26, 10:22 AM CST	River Flood Warning	PAH	Alexander, Pulaski	22 days
Dec 26, 1:46 PM CST	Wind Advisory	PAH	Alexander, Gallatin, Hardin, Johnson, Massac, Pope and 5 more	29 hr
Dec 27, 12:14 PM CST	Wind Advisory	ILX	Champaign, Christian, Coles, DeWitt, Douglas, Edgar and 14 more	5 hr
Dec 27, 12:22 PM CST	Wind Advisory	LOT	Ford, Grundy, Iroquois, Kankakee, LaSalle, Livingston	4 hr
Dec 27, 1:32 PM CST	Gale Warning	LOT		4 hr
Dec 27, 1:32 PM CST	Small Craft Advisory	LOT		46 hr
Dec 28, 2:50 AM CST	Winter Weather Advisory	DVN	Mercer, Rock Island	9 hr
Dec 28, 2:37 PM CST	Winter Weather Advisory	DVN	Bureau, Carroll, Henry, Jo Daviess, Mercer, Putnam and 3 more	7 hr
Dec 28, 4:07 PM CST	Winter Weather Advisory	LOT	Boone, DeKalb, Kane, Kendall, Lee, McHenry and 2 more	8 hr
Dec 29, 8:18 AM CST	Winter Weather Advisory	LOT	Iroquois, Kankakee	3 hr
Dec 29, 2:54 PM CST	Small Craft Advisory	LOT		31 hr
Dec 30, 2:21 PM CST	Winter Weather Advisory	LOT	Boone, DeKalb, DuPage, Kane, Lake, Lee and 3 more	18 hr
Dec 30, 3:03 PM CST	Winter Weather Advisory	DVN	Carroll, Jo Daviess, Stephenson, Whiteside	21 hr
Dec 31, 3:30 AM CST	Small Craft Advisory	LOT		48 hr
Dec 31, 7:42 AM CST	Areal Flood Advisory	ILX	Christian, Morgan, Sangamon, Scott	6 hr
Dec 31, 9:07 AM CST	Areal Flood Warning	LSX	Calhoun, Greene, Jersey, Pike	3 hr
Dec 31, 9:13 AM CST	River Flood Advisory	LOT	Iroquois	25 hr
Dec 31, 10:16 AM CST	Flash Flood Watch	ILX	Sangamon	43 hr
Dec 31, 11:34 AM CST	River Flood Advisory	LOT	LaSalle	71 hr
Dec 31, 11:56 AM CST	Tornado Warning	PAH	Massac, Pope	16 min

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	14
Tornado Warning	26
Tornado Watch	1
Mesoscale Discussion	2
Special Weather Statement	9
Flooding
Areal Flood Warning	1
Flash Flood Warning	2
River Flood Warning	32
Flash Flood Watch	1
River Flood Watch	1
Areal Flood Advisory	4
River Flood Advisory	16
Winter
Winter Weather Advisory	12
Wind and dust
Wind Advisory	4
Fog and smoke
Dense Fog Advisory	20
Coast and beach
Lakeshore Flood Advisory	1
Marine
Gale Warning	2
Marine Dense Fog Advisory	5
Small Craft Advisory	10

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 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.