Alert archive / Illinois / Champaign County

Weather alerts in Champaign County, Illinois, 2025

158 weather alerts in 2025, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Champaign County and its neighbors

Each county as a circle sized by its count in 2025. Tap one for its archive.

Alerts: 158
Warnings: 53
Watches: 18
Advisories: 54
Busiest month: March25 alerts
Busiest day: May 20, 202511 alerts

Over time

By month

Warning verification

How often warnings here had a storm report inside them, and how much warning the reports had.

3 of 7 tornado warnings covering Champaign County in 2025 had a tornado report inside them; 1 of 6 tornado reports fell inside a warning, on average 26 minutes after it went out.

Champaign County, 2025

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
Tornado warnings	7	3	57%	6	17%	26 min
Severe thunderstorm warnings	33	23	30%	39	72%	22 min
Flash flood warnings	3	2	33%	3	67%	29 min

Each office's whole area, 2025

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS Lincoln, IL: tornado warnings	87	27	69%	90	58%	14 min
NWS Lincoln, IL: severe thunderstorm warnings	245	113	54%	492	72%	19 min
NWS Lincoln, IL: flash flood warnings	23	8	65%	19	68%	52 min

An office's figures cover every county it serves, including across state lines.

Verified by the Iowa Environmental Mesonet's Cow, which matches each storm-based warning with the local storm reports inside its polygon while it was in force, within 15 km of its edge: a tornado warning counts as verified on a tornado report, a severe thunderstorm warning on hail of 1 inch or more, a gust of 58 mph or more, or wind damage, a flash flood warning on a flash flood report. The false alarm ratio is the share of warnings with no such report; "inside a warning" is the probability of detection, the share of reports that fell inside one; lead time runs from the warning's issue to each report inside it, counting zero for a report that came first. A warning with no report is not proof nothing happened: reports come from spotters, the public and damage surveys, and are thin where few people live.

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	Lasted
Jan 2, 2:26 PM CST	Winter Storm Watch	ILX	36 hr
Jan 4, 2:49 AM CST	Winter Storm Warning	ILX	57 hr
Jan 9, 2:39 AM CST	Winter Weather Advisory	ILX	42 hr
Jan 18, 2:07 PM CST	Cold Weather Advisory	ILX	46 hr
Jan 20, 1:55 AM CST	Cold Weather Advisory	ILX	37 hr
Jan 21, 2:08 AM CST	Cold Weather Advisory	ILX	28 hr
Jan 30, 8:10 PM CST	Dense Fog Advisory	ILX	14 hr
Feb 4, 2:15 PM CST	Winter Weather Advisory	ILX	37 hr
Feb 5, 11:42 PM CST	Dense Fog Advisory	ILX	4 hr
Feb 11, 3:18 AM CST	Winter Weather Advisory	ILX	42 hr
Feb 14, 2:20 PM CST	Winter Weather Advisory	ILX	15 hr
Feb 17, 2:22 AM CST	Cold Weather Advisory	ILX	34 hr
Feb 27, 2:04 PM CST	Wind Advisory	ILX	24 hr
Feb 28, 10:58 AM CST	Red Flag Warning	ILX	7 hr
Feb 28, 2:03 PM CST	Wind Advisory	ILX	5 hr
Mar 4, 1:55 AM CST	Wind Advisory	ILX	46 hr
Mar 13, 2:36 AM CDT	Wind Advisory	ILX	61 hr
Mar 13, 11:35 AM CDT	Fire Weather Watch	ILX	15 hr
Mar 14, 7:45 PM CDT	Mesoscale Discussion	SPC	2 hr
Mar 14, 8:02 PM CDT	Tornado Watch	SPC	7 hr
Mar 14, 10:42 PM CDT	Mesoscale Discussion	SPC	63 min
Mar 14, 11:54 PM CDT	Severe Thunderstorm Warning Considerable damage threat	ILX	66 min
Mar 15, 12:07 AM CDT	Tornado Warning	ILX	38 min
Mar 15, 12:15 AM CDT	Tornado Warning	ILX	28 min
Mar 15, 12:51 AM CDT	Tornado Warning	ILX	12 min
Mar 18, 1:36 PM CDT	Wind Advisory	ILX	38 hr
Mar 19, 12:16 PM CDT	Tornado Watch	SPC	9 hr
Mar 19, 3:37 PM CDT	Mesoscale Discussion	SPC	113 min
Mar 19, 4:23 PM CDT	Severe Thunderstorm Warning Considerable damage threat	ILX	52 min
Mar 23, 2:23 PM CDT	Wind Advisory	ILX	7 hr
Mar 28, 1:14 PM CDT	Wind Advisory	ILX	6 hr
Mar 28, 5:14 PM CDT	Blowing Dust Advisory	ILX	3 hr
Mar 30, 12:02 PM CDT	Tornado Watch	SPC	7 hr
Mar 30, 1:11 PM CDT	Severe Thunderstorm Warning	ILX	49 min
Mar 30, 1:15 PM CDT	Severe Thunderstorm Warning	ILX	30 min
Mar 30, 1:26 PM CDT	Tornado Warning	ILX	21 min
Mar 30, 1:44 PM CDT	Severe Thunderstorm Warning	ILX	31 min
Mar 30, 2:05 PM CDT	Mesoscale Discussion	SPC	115 min
Mar 30, 2:11 PM CDT	Severe Thunderstorm Warning Destructive damage threat	ILX	35 min
Mar 31, 2:04 PM CDT	Flood Watch	ILX	5 days
Apr 1, 2:42 PM CDT	Wind Advisory	ILX	29 hr
Apr 2, 9:48 AM CDT	Mesoscale Discussion	SPC	117 min
Apr 2, 2:43 PM CDT	Mesoscale Discussion	SPC	2 hr
Apr 2, 3:17 PM CDT	Tornado Watch	SPC	7 hr
Apr 2, 4:19 PM CDT	Severe Thunderstorm Warning Considerable damage threat	ILX	26 min
Apr 2, 4:23 PM CDT	Tornado Warning	ILX	23 min
Apr 2, 4:50 PM CDT	Severe Thunderstorm Warning Considerable damage threat	ILX	40 min
Apr 2, 4:58 PM CDT	Flash Flood Warning	ILX	3 hr
Apr 2, 4:59 PM CDT	Severe Thunderstorm Warning Considerable damage threat	ILX	46 min
Apr 2, 5:30 PM CDT	Severe Thunderstorm Warning	ILX	30 min
Apr 2, 5:40 PM CDT	Mesoscale Discussion	SPC	95 min
Apr 6, 2:11 AM CDT	Freeze Watch	ILX	24 hr
Apr 7, 1:44 AM CDT	Freeze Warning	ILX	31 hr
Apr 11, 2:08 AM CDT	Freeze Warning	ILX	31 hr
Apr 14, 11:44 PM CDT	Special Weather Statement	ILX	46 min
Apr 15, 2:32 AM CDT	Frost Advisory	ILX	29 hr
Apr 18, 2:53 PM CDT	Mesoscale Discussion	SPC	3 hr
Apr 28, 5:59 PM CDT	Blowing Dust Advisory	ILX	4 hr
Apr 30, 10:59 PM CDT	Severe Thunderstorm Warning	ILX	31 min
May 13, 4:43 PM CDT	Special Weather Statement	ILX	32 min
May 15, 5:15 PM CDT	Tornado Watch	SPC	4 hr
May 15, 7:36 PM CDT	Mesoscale Discussion	SPC	54 min
May 15, 8:20 PM CDT	Special Weather Statement	ILX	25 min
May 15, 8:34 PM CDT	Severe Thunderstorm Warning	ILX	19 min
May 16, 2:59 PM CDT	Tornado Watch	SPC	8 hr
May 16, 3:44 PM CDT	Blowing Dust Advisory	ILX	3 hr
May 16, 4:27 PM CDT	High Wind Warning	ILX	3 hr
May 16, 4:37 PM CDT	Severe Thunderstorm Warning Considerable damage threat	ILX	50 min
May 16, 4:52 PM CDT	Dust Storm Warning	ILX	91 min
May 17, 12:24 PM CDT	Blowing Dust Advisory	ILX	5 hr
May 20, 1:42 PM CDT	Tornado Watch	SPC	6 hr
May 20, 1:44 PM CDT	Mesoscale Discussion	SPC	106 min
May 20, 3:14 PM CDT	Severe Thunderstorm Warning	ILX	31 min
May 20, 4:12 PM CDT	Severe Thunderstorm Warning	ILX	33 min
May 20, 4:24 PM CDT	Severe Thunderstorm Warning	ILX	51 min
May 20, 4:27 PM CDT	Severe Thunderstorm Warning Considerable damage threat	ILX	48 min
May 20, 4:33 PM CDT	Severe Thunderstorm Warning	ILX	12 min
May 20, 4:47 PM CDT	Tornado Warning	ILX	43 min
May 20, 5:10 PM CDT	Severe Thunderstorm Warning Considerable damage threat	ILX	65 min
May 20, 5:31 PM CDT	Severe Thunderstorm Warning	ILX	23 min
May 20, 6:07 PM CDT	Severe Thunderstorm Warning	ILX	38 min
Jun 6, 5:04 AM CDT	Dense Fog Advisory	ILX	3 min
Jun 6, 5:07 AM CDT	Dense Fog Advisory	ILX	4 hr
Jun 16, 2:46 PM CDT	Areal Flood Advisory	ILX	44 min
Jun 17, 5:13 AM CDT	Dense Fog Advisory	ILX	4 hr
Jun 18, 9:46 AM CDT	Tornado Watch	SPC	6 hr
Jun 18, 10:57 AM CDT	Mesoscale Discussion	SPC	2 hr
Jun 18, 11:08 AM CDT	Wind Advisory	ILX	8 hr
Jun 18, 12:22 PM CDT	Severe Thunderstorm Warning	ILX	23 min
Jun 18, 12:30 PM CDT	Severe Thunderstorm Warning	ILX	30 min
Jun 18, 12:44 PM CDT	Mesoscale Discussion	SPC	2 hr
Jun 18, 12:45 PM CDT	Severe Thunderstorm Warning	ILX	45 min
Jun 18, 12:55 PM CDT	Severe Thunderstorm Warning	ILX	50 min
Jun 18, 1:48 PM CDT	Severe Thunderstorm Warning	ILX	27 min
Jun 18, 1:52 PM CDT	Tornado Warning	ILX	38 min
Jun 20, 2:45 AM CDT	Heat Advisory	ILX	8 days
Jul 6, 12:09 PM CDT	Mesoscale Discussion	SPC	2 hr
Jul 6, 7:12 PM CDT	Special Weather Statement	ILX	33 min
Jul 10, 4:22 PM CDT	Special Weather Statement	ILX	8 min
Jul 14, 12:15 AM CDT	Dense Fog Advisory	ILX	9 hr
Jul 16, 3:42 PM CDT	Special Weather Statement	ILX	33 min
Jul 16, 4:15 PM CDT	Special Weather Statement	ILX	45 min
Jul 20, 1:45 AM CDT	Flood Watch	ILX	30 hr
Jul 20, 7:35 AM CDT	Mesoscale Discussion	SPC	115 min
Jul 21, 2:16 AM CDT	Extreme Heat Watch	ILX	36 hr
Jul 22, 2:10 PM CDT	Heat Advisory	ILX	5 days
Jul 26, 12:37 AM CDT	Special Weather Statement	ILX	23 min
Jul 26, 1:21 PM CDT	Mesoscale Discussion	SPC	114 min
Jul 26, 1:45 PM CDT	Flood Watch	ILX	13 hr
Jul 26, 4:34 PM CDT	Mesoscale Discussion	SPC	116 min
Jul 26, 5:42 PM CDT	Severe Thunderstorm Warning	ILX	48 min
Jul 26, 6:31 PM CDT	Flash Flood Warning	ILX	3 hr
Jul 26, 7:36 PM CDT	Areal Flood Advisory	ILX	3 hr
Jul 27, 1:40 PM CDT	Heat Advisory	ILX	30 hr
Jul 28, 1:18 PM CDT	Heat Advisory	ILX	31 hr
Jul 30, 12:02 PM CDT	Mesoscale Discussion	SPC	2 hr
Aug 12, 2:44 PM CDT	Mesoscale Discussion	SPC	2 hr
Aug 15, 12:32 PM CDT	Heat Advisory	ILX	3 days
Aug 16, 6:20 PM CDT	Severe Thunderstorm Warning	ILX	25 min
Aug 16, 6:43 PM CDT	Severe Thunderstorm Warning	ILX	32 min
Aug 16, 7:03 PM CDT	Flash Flood Warning	ILX	117 min
Aug 16, 7:13 PM CDT	Severe Thunderstorm Warning	ILX	32 min
Sep 22, 9:11 PM CDT	Dense Fog Advisory	ILX	13 hr
Oct 22, 2:29 AM CDT	Frost Advisory	ILX	31 hr
Oct 22, 2:08 PM CDT	Freeze Watch	ILX	12 hr
Oct 23, 2:16 AM CDT	Freeze Warning	ILX	31 hr
Nov 9, 9:13 PM CST	Winter Weather Advisory	ILX	12 hr
Nov 18, 1:20 PM CST	Severe Thunderstorm Warning	ILX	26 min
Nov 20, 7:09 PM CST	Dense Fog Advisory	ILX	14 hr
Nov 23, 7:11 AM CST	Dense Fog Advisory	ILX	3 hr
Nov 23, 6:06 PM CST	Dense Fog Advisory	ILX	17 hr
Nov 25, 2:14 AM CST	Wind Advisory	ILX	40 hr
Nov 25, 5:29 AM CST	Dense Fog Advisory	ILX	5 hr
Nov 27, 2:40 AM CST	Winter Storm Watch	ILX	34 hr
Nov 28, 2:06 AM CST	Winter Storm Warning	ILX	43 hr
Nov 29, 10:42 AM CST	Mesoscale Discussion	SPC	5 hr
Nov 29, 2:16 PM CST	Mesoscale Discussion	SPC	4 hr
Nov 30, 1:07 PM CST	Winter Weather Advisory	ILX	38 hr
Dec 6, 2:39 AM CST	Winter Weather Advisory	ILX	27 hr
Dec 9, 1:49 PM CST	Wind Advisory	ILX	22 hr
Dec 11, 1:46 AM CST	Winter Weather Advisory	ILX	27 hr
Dec 12, 1:05 PM CST	Winter Weather Advisory	ILX	29 hr
Dec 12, 1:12 PM CST	Cold Weather Advisory	ILX	67 hr
Dec 13, 9:43 AM CST	Mesoscale Discussion	SPC	4 hr
Dec 13, 12:40 PM CST	Winter Storm Warning	ILX	5 hr
Dec 13, 6:13 PM CST	Extreme Cold Warning	ILX	18 hr
Dec 18, 2:24 AM CST	Wind Advisory	ILX	22 hr
Dec 18, 1:22 PM CST	Special Weather Statement	ILX	23 min
Dec 18, 1:40 PM CST	Special Weather Statement	ILX	35 min
Dec 24, 12:25 PM CST	Dense Fog Advisory	ILX	23 hr
Dec 25, 6:41 PM CST	Dense Fog Advisory	ILX	9 hr
Dec 26, 11:35 PM CST	Dense Fog Advisory	ILX	12 hr
Dec 27, 2:10 PM CST	Wind Advisory	ILX	44 hr
Dec 28, 1:18 PM CST	Mesoscale Discussion	SPC	117 min
Dec 28, 2:47 PM CST	Tornado Watch	SPC	6 hr
Dec 28, 3:49 PM CST	Mesoscale Discussion	SPC	86 min
Dec 28, 4:13 PM CST	Severe Thunderstorm Warning	ILX	32 min
Dec 28, 4:23 PM CST	Severe Thunderstorm Warning	ILX	37 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	33
Tornado Warning	7
Tornado Watch	9
Mesoscale Discussion	23
Special Weather Statement	10
Flooding
Flash Flood Warning	3
Flood Watch	3
Areal Flood Advisory	2
Winter
Winter Storm Warning	3
Winter Storm Watch	2
Winter Weather Advisory	9
Heat
Extreme Heat Watch	1
Heat Advisory	5
Cold
Extreme Cold Warning	1
Freeze Warning	3
Freeze Watch	2
Cold Weather Advisory	5
Frost Advisory	2
Wind and dust
Dust Storm Warning	1
High Wind Warning	1
Blowing Dust Advisory	4
Wind Advisory	13
Fire
Red Flag Warning	1
Fire Weather Watch	1
Fog and smoke
Dense Fog Advisory	14

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force now Tornadoes on record Forecast The radar archive 2024 2026

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.