Alert archive / Illinois / Johnson County

Weather alerts in Johnson County, Illinois, 2024

128 weather alerts in 2024, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Johnson County and its neighbors

Each county as a circle sized by its count in 2024. Tap one for its archive.

Alerts: 128
Warnings: 34
Watches: 22
Advisories: 32
Busiest month: May44 alerts
Busiest day: May 8, 202412 alerts

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	Lasted
Jan 8, 2:29 PM CST	Wind Advisory	PAH	37 hr
Jan 11, 2:05 AM CST	Wind Advisory	PAH	46 hr
Jan 12, 9:41 AM CST	Areal Flood Advisory	PAH	2 hr
Jan 13, 3:14 AM CST	Wind Chill Advisory	PAH	33 hr
Jan 13, 1:56 PM CST	Winter Weather Advisory	PAH	52 hr
Jan 15, 1:32 PM CST	Wind Chill Advisory	PAH	20 hr
Jan 18, 2:37 PM CST	Wind Chill Advisory	PAH	42 hr
Jan 23, 12:57 PM CST	Flood Watch	PAH	15 hr
Jan 23, 4:18 PM CST	Dense Fog Advisory	PAH	44 hr
Feb 11, 2:17 PM CST	Winter Weather Advisory	PAH	27 hr
Feb 22, 4:13 PM CST	Severe Thunderstorm Warning	PAH	32 min
Feb 22, 4:39 PM CST	Severe Thunderstorm Warning	PAH	51 min
Feb 26, 1:33 PM CST	Wind Advisory	PAH	41 hr
Feb 27, 12:00 AM CST	Mesoscale Discussion	SPC	2 hr
Feb 27, 7:46 PM CST	Mesoscale Discussion	SPC	119 min
Feb 27, 9:29 PM CST	Tornado Watch	SPC	10 hr
Mar 2, 3:06 AM CST	Dense Fog Advisory	PAH	7 hr
Mar 14, 5:27 PM CDT	Tornado Watch	SPC	7 hr
Mar 14, 7:56 PM CDT	Severe Thunderstorm Warning Considerable damage threat	PAH	49 min
Mar 14, 8:29 PM CDT	Severe Thunderstorm Warning	PAH	46 min
Mar 24, 1:28 PM CDT	Wind Advisory	PAH	36 hr
Apr 2, 1:16 AM CDT	Mesoscale Discussion	SPC	89 min
Apr 2, 2:00 AM CDT	Tornado Watch	SPC	5 hr
Apr 2, 3:59 AM CDT	Severe Thunderstorm Warning Considerable damage threat	PAH	46 min
Apr 2, 4:35 AM CDT	Severe Thunderstorm Warning Considerable damage threat	PAH	40 min
Apr 2, 4:49 AM CDT	Tornado Warning	PAH	26 min
Apr 2, 4:59 AM CDT	Tornado Warning	PAH	26 min
Apr 2, 5:11 AM CDT	Severe Thunderstorm Warning Considerable damage threat	PAH	64 min
Apr 2, 11:48 AM CDT	Mesoscale Discussion	SPC	117 min
Apr 2, 12:08 PM CDT	Tornado Watch	SPC	6 hr
Apr 2, 12:30 PM CDT	Severe Thunderstorm Warning	PAH	30 min
Apr 2, 12:55 PM CDT	Severe Thunderstorm Warning	PAH	16 min
Apr 5, 2:14 AM CDT	Frost Advisory	PAH	30 hr
Apr 7, 2:12 PM CDT	Mesoscale Discussion	SPC	3 hr
Apr 8, 4:19 AM CDT	Dense Fog Advisory	PAH	5 hr
Apr 18, 12:56 PM CDT	Severe Thunderstorm Watch	SPC	8 hr
Apr 18, 3:09 PM CDT	Mesoscale Discussion	SPC	2 hr
Apr 18, 4:17 PM CDT	Severe Thunderstorm Warning	PAH	28 min
Apr 18, 4:31 PM CDT	Severe Thunderstorm Warning Considerable damage threat	PAH	44 min
Apr 18, 4:48 PM CDT	Mesoscale Discussion	SPC	87 min
Apr 18, 5:11 PM CDT	Severe Thunderstorm Warning	PAH	49 min
Apr 18, 5:52 PM CDT	Severe Thunderstorm Warning	PAH	23 min
Apr 18, 6:12 PM CDT	Mesoscale Discussion	SPC	93 min
Apr 18, 6:36 PM CDT	Severe Thunderstorm Watch	SPC	6 hr
Apr 21, 2:24 AM CDT	Frost Advisory	PAH	30 hr
Apr 24, 12:34 AM CDT	Dense Fog Advisory	PAH	7 hr
Apr 29, 11:46 PM CDT	Dense Fog Advisory	PAH	9 hr
May 3, 9:27 PM CDT	Dense Fog Advisory	PAH	9 hr
May 4, 8:15 PM CDT	Special Weather Statement	PAH	45 min
May 7, 4:42 AM CDT	Mesoscale Discussion	SPC	2 hr
May 7, 6:57 PM CDT	Tornado Watch	SPC	7 hr
May 8, 12:01 AM CDT	Flood Watch	PAH	25 hr
May 8, 1:26 AM CDT	Mesoscale Discussion	SPC	2 hr
May 8, 10:29 AM CDT	Tornado Watch	SPC	8 hr
May 8, 11:28 AM CDT	Mesoscale Discussion	SPC	92 min
May 8, 11:35 AM CDT	Mesoscale Discussion	SPC	85 min
May 8, 12:58 PM CDT	Mesoscale Discussion	SPC	62 min
May 8, 1:50 PM CDT	Mesoscale Discussion	SPC	55 min
May 8, 3:15 PM CDT	Severe Thunderstorm Warning	PAH	30 min
May 8, 3:41 PM CDT	Mesoscale Discussion	SPC	94 min
May 8, 3:56 PM CDT	Tornado Warning	PAH	18 min
May 8, 4:17 PM CDT	Tornado Warning Tornado observed	PAH	28 min
May 8, 4:42 PM CDT	Tornado Watch	SPC	9 hr
May 8, 10:30 PM CDT	Severe Thunderstorm Warning	PAH	45 min
May 8, 10:34 PM CDT	Mesoscale Discussion	SPC	86 min
May 14, 5:02 PM CDT	Special Weather Statement	PAH	43 min
May 16, 2:15 PM CDT	Flood Watch	PAH	20 hr
May 16, 3:25 PM CDT	Mesoscale Discussion	SPC	2 hr
May 16, 7:56 PM CDT	Special Weather Statement	PAH	34 min
May 16, 8:16 PM CDT	Areal Flood Advisory	PAH	38 min
May 18, 1:21 AM CDT	Dense Fog Advisory	PAH	7 hr
May 21, 2:27 AM CDT	Lake Wind Advisory	PAH	16 hr
May 24, 10:34 AM CDT	Special Weather Statement	PAH	26 min
May 25, 1:38 PM CDT	Flood Watch	PAH	34 hr
May 26, 2:35 AM CDT	Tornado Watch	SPC	7 hr
May 26, 7:42 AM CDT	Severe Thunderstorm Warning Considerable damage threat	PAH	48 min
May 26, 7:50 AM CDT	Mesoscale Discussion	SPC	115 min
May 26, 8:12 AM CDT	Tornado Warning	PAH	19 min
May 26, 8:28 AM CDT	Severe Thunderstorm Warning	PAH	47 min
May 26, 11:10 AM CDT	Areal Flood Advisory	PAH	4 hr
May 26, 2:38 PM CDT	Mesoscale Discussion	SPC	3 hr
May 26, 2:46 PM CDT	Mesoscale Discussion	SPC	59 min
May 26, 4:01 PM CDT	Tornado Watch PDS	SPC	7 hr
May 26, 6:18 PM CDT	Mesoscale Discussion	SPC	87 min
May 26, 6:32 PM CDT	Severe Thunderstorm Warning	PAH	43 min
May 26, 6:41 PM CDT	Tornado Warning Tornado observed	PAH	34 min
May 26, 7:38 PM CDT	Tornado Warning	PAH	37 min
May 26, 8:15 PM CDT	Severe Thunderstorm Warning Considerable damage threat	PAH	43 min
May 26, 8:21 PM CDT	Tornado Warning	PAH	24 min
May 26, 8:21 PM CDT	Mesoscale Discussion	SPC	84 min
May 26, 8:29 PM CDT	Severe Thunderstorm Warning	PAH	49 min
Jun 16, 3:13 PM CDT	Special Weather Statement	PAH	17 min
Jun 24, 2:33 AM CDT	Heat Advisory	PAH	41 hr
Jun 25, 10:43 PM CDT	Special Weather Statement	PAH	47 min
Jun 28, 2:08 PM CDT	Heat Advisory	PAH	29 hr
Jun 30, 3:52 AM CDT	Special Weather Statement	PAH	68 min
Jun 30, 4:22 AM CDT	Areal Flood Advisory	PAH	2 hr
Jul 2, 1:16 PM CDT	Heat Advisory	PAH	31 hr
Jul 3, 1:45 PM CDT	Mesoscale Discussion	SPC	2 hr
Jul 4, 2:56 AM CDT	Heat Advisory	PAH	18 hr
Jul 4, 5:37 PM CDT	Mesoscale Discussion	SPC	53 min
Jul 8, 2:24 AM CDT	Flood Watch	PAH	40 hr
Jul 9, 2:07 PM CDT	Tornado Watch	SPC	10 hr
Jul 12, 4:40 PM CDT	Mesoscale Discussion	SPC	95 min
Jul 13, 2:01 PM CDT	Heat Advisory	PAH	69 hr
Jul 15, 2:10 PM CDT	Flood Watch	PAH	40 hr
Jul 16, 12:02 PM CDT	Mesoscale Discussion	SPC	88 min
Jul 16, 9:56 PM CDT	Mesoscale Discussion	SPC	2 hr
Jul 17, 1:15 AM CDT	Areal Flood Advisory	PAH	4 hr
Jul 29, 2:32 PM CDT	Excessive Heat Warning	PAH	3 days
Jul 30, 1:56 PM CDT	Mesoscale Discussion	SPC	2 hr
Jul 30, 2:58 PM CDT	Severe Thunderstorm Watch	SPC	8 hr
Jul 30, 7:18 PM CDT	Severe Thunderstorm Warning	PAH	42 min
Aug 2, 1:30 AM CDT	Special Weather Statement	PAH	45 min
Aug 2, 1:38 AM CDT	Severe Thunderstorm Warning	PAH	37 min
Aug 15, 5:45 PM CDT	Severe Thunderstorm Watch	SPC	5 hr
Aug 15, 7:13 PM CDT	Mesoscale Discussion	SPC	92 min
Aug 15, 7:52 PM CDT	Severe Thunderstorm Warning	PAH	38 min
Aug 15, 8:25 PM CDT	Severe Thunderstorm Warning Considerable damage threat	PAH	24 min
Aug 15, 8:47 PM CDT	Mesoscale Discussion	SPC	118 min
Sep 23, 3:32 PM CDT	Mesoscale Discussion	SPC	2 hr
Sep 24, 12:56 AM CDT	Mesoscale Discussion	SPC	3 hr
Sep 26, 1:54 PM CDT	Flood Watch	PAH	36 hr
Sep 26, 2:04 PM CDT	Wind Advisory	PAH	35 hr
Oct 15, 1:47 AM CDT	Frost Advisory	PAH	30 hr
Oct 16, 9:53 AM CDT	Freeze Warning	PAH	21 hr
Dec 28, 2:07 AM CST	Flood Watch	PAH	25 hr
Dec 31, 1:48 AM CST	Wind Advisory	PAH	15 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	24
Tornado Warning	8
Severe Thunderstorm Watch	4
Tornado Watch	10
Mesoscale Discussion	32
Special Weather Statement	8
Flooding
Flood Watch	8
Areal Flood Advisory	5
Winter
Winter Weather Advisory	2
Heat
Excessive Heat Warning	1
Heat Advisory	5
Cold
Freeze Warning	1
Frost Advisory	3
Wind Chill Advisory	3
Wind and dust
Lake Wind Advisory	1
Wind Advisory	6
Fog and smoke
Dense Fog Advisory	7

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force now Tornadoes on record Forecast The radar archive 2023 2025

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.