Alert archive / Illinois / Hamilton County

Weather alerts in Hamilton County, Illinois, 2021

113 weather alerts in 2021, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Hamilton County and its neighbors

Each county as a circle sized by its count in 2021. Tap one for its archive.

Alerts: 113
Warnings: 16
Watches: 22
Advisories: 39
Busiest month: July18 alerts
Busiest day: July 10, 20217 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 1, 1:08 AM CST	Mesoscale Discussion	SPC	5 hr
Jan 25, 9:24 PM CST	Dense Fog Advisory	PAH	12 hr
Jan 26, 8:48 PM CST	Winter Weather Advisory	PAH	25 hr
Feb 8, 3:54 AM CST	Winter Weather Advisory	PAH	26 hr
Feb 8, 2:47 PM CST	Winter Storm Watch	PAH	24 hr
Feb 9, 3:10 PM CST	Winter Weather Advisory	PAH	41 hr
Feb 10, 11:18 AM CST	Mesoscale Discussion	SPC	4 hr
Feb 12, 2:09 PM CST	Winter Storm Watch	PAH	37 hr
Feb 13, 12:55 PM CST	Wind Chill Advisory	PAH	23 hr
Feb 14, 3:00 AM CST	Winter Storm Warning	PAH	43 hr
Feb 15, 10:44 AM CST	Mesoscale Discussion	SPC	6 hr
Feb 16, 4:35 AM CST	Winter Weather Advisory	PAH	53 hr
Feb 26, 1:57 PM CST	Flood Watch	PAH	58 hr
Feb 28, 5:16 AM CST	Areal Flood Advisory	PAH	5 hr
Mar 11, 4:11 AM CST	Flood Watch	PAH	55 hr
Mar 11, 1:26 PM CST	Mesoscale Discussion	SPC	3 hr
Mar 16, 1:22 AM CDT	Dense Fog Advisory	PAH	9 hr
Mar 17, 2:21 AM CDT	Flash Flood Watch	PAH	23 hr
Mar 25, 3:55 AM CDT	Wind Advisory	PAH	20 hr
Mar 25, 2:33 PM CDT	Mesoscale Discussion	SPC	117 min
Mar 25, 3:48 PM CDT	Tornado Watch	SPC	7 hr
Mar 27, 7:58 PM CDT	Mesoscale Discussion	SPC	92 min
Mar 27, 8:19 PM CDT	Severe Thunderstorm Watch	SPC	114 min
Mar 30, 2:26 PM CDT	Freeze Watch	PAH	22 hr
Mar 30, 2:26 PM CDT	Freeze Warning	PAH	43 hr
Mar 31, 12:20 PM CDT	Freeze Warning	PAH	45 hr
Apr 2, 2:15 PM CDT	Freeze Warning	PAH	19 hr
Apr 9, 4:56 PM CDT	Mesoscale Discussion	SPC	64 min
Apr 19, 4:08 AM CDT	Freeze Watch	PAH	11 hr
Apr 19, 3:25 PM CDT	Freeze Warning	PAH	42 hr
Apr 21, 4:00 AM CDT	Frost Advisory	PAH	28 hr
Apr 25, 2:43 AM CDT	Dense Fog Advisory	PAH	6 hr
Apr 27, 3:11 PM CDT	Flash Flood Watch	PAH	45 hr
May 4, 1:06 AM CDT	Mesoscale Discussion	SPC	114 min
May 6, 10:05 AM CDT	Mesoscale Discussion	SPC	85 min
May 6, 12:38 PM CDT	Severe Thunderstorm Watch	SPC	5 hr
May 6, 4:31 PM CDT	Special Weather Statement	PAH	44 min
May 8, 2:19 PM CDT	Lake Wind Advisory	PAH	29 hr
May 20, 10:12 AM CDT	Lake Wind Advisory	PAH	9 hr
May 26, 4:10 PM CDT	Special Weather Statement	PAH	35 min
May 27, 11:26 AM CDT	Severe Thunderstorm Watch	SPC	8 hr
May 27, 2:20 PM CDT	Mesoscale Discussion	SPC	85 min
May 27, 3:38 PM CDT	Mesoscale Discussion	SPC	67 min
May 27, 4:31 PM CDT	Severe Thunderstorm Warning	PAH	44 min
May 27, 5:21 PM CDT	Mesoscale Discussion	SPC	114 min
May 27, 5:43 PM CDT	Areal Flood Advisory	PAH	2 hr
May 28, 2:27 AM CDT	Lake Wind Advisory	PAH	18 hr
Jun 3, 7:32 AM CDT	Areal Flood Advisory	PAH	118 min
Jun 3, 8:10 AM CDT	Flash Flood Warning	PAH	110 min
Jun 11, 6:16 AM CDT	Dense Fog Advisory	PAH	3 hr
Jun 17, 3:10 PM CDT	Heat Advisory	PAH	28 hr
Jun 20, 4:09 AM CDT	Lake Wind Advisory	PAH	16 hr
Jun 25, 3:31 AM CDT	Lake Wind Advisory	PAH	16 hr
Jun 25, 12:57 PM CDT	Mesoscale Discussion	SPC	2 hr
Jun 26, 3:21 AM CDT	Lake Wind Advisory	PAH	17 hr
Jun 30, 12:22 PM CDT	Mesoscale Discussion	SPC	113 min
Jul 10, 1:36 AM CDT	Severe Thunderstorm Watch	SPC	4 hr
Jul 10, 2:21 AM CDT	Flash Flood Watch	PAH	25 hr
Jul 10, 1:25 PM CDT	Mesoscale Discussion	SPC	2 hr
Jul 10, 2:01 PM CDT	Severe Thunderstorm Watch	SPC	8 hr
Jul 10, 5:33 PM CDT	Mesoscale Discussion	SPC	87 min
Jul 10, 5:40 PM CDT	Special Weather Statement	PAH	50 min
Jul 10, 6:00 PM CDT	Severe Thunderstorm Warning	PAH	45 min
Jul 12, 1:13 PM CDT	Mesoscale Discussion	SPC	92 min
Jul 15, 3:01 PM CDT	Special Weather Statement	PAH	29 min
Jul 15, 3:29 PM CDT	Special Weather Statement	PAH	31 min
Jul 16, 12:43 PM CDT	Areal Flood Advisory	PAH	2 hr
Jul 16, 12:58 PM CDT	Special Weather Statement	PAH	47 min
Jul 16, 1:21 PM CDT	Flash Flood Warning	PAH	114 min
Jul 16, 2:04 PM CDT	Flash Flood Warning	PAH	116 min
Jul 16, 3:16 PM CDT	Areal Flood Advisory	PAH	3 hr
Jul 16, 4:28 PM CDT	Flash Flood Warning	PAH	3 hr
Jul 18, 2:50 PM CDT	Areal Flood Advisory	PAH	2 hr
Jul 28, 1:38 PM CDT	Heat Advisory	PAH	30 hr
Aug 8, 5:47 PM CDT	Mesoscale Discussion	SPC	88 min
Aug 9, 1:53 PM CDT	Heat Advisory	PAH	3 days
Aug 10, 1:28 PM CDT	Heat Advisory	PAH	54 hr
Aug 10, 2:20 PM CDT	Mesoscale Discussion	SPC	2 hr
Aug 12, 7:20 PM CDT	Mesoscale Discussion	SPC	85 min
Aug 12, 7:37 PM CDT	Severe Thunderstorm Watch	SPC	4 hr
Aug 12, 8:34 PM CDT	Special Weather Statement	PAH	71 min
Aug 12, 9:39 PM CDT	Special Weather Statement	PAH	66 min
Aug 12, 9:55 PM CDT	Mesoscale Discussion	SPC	95 min
Aug 22, 3:43 AM CDT	Dense Fog Advisory	PAH	4 hr
Aug 22, 2:38 PM CDT	Heat Advisory	PAH	6 days
Aug 27, 6:35 PM CDT	Special Weather Statement	PAH	25 min
Aug 27, 7:06 PM CDT	Areal Flood Advisory	PAH	2 hr
Aug 30, 1:41 PM CDT	Areal Flood Advisory	PAH	2 hr
Sep 11, 4:03 AM CDT	Lake Wind Advisory	PAH	14 hr
Sep 14, 4:19 PM CDT	Special Weather Statement	PAH	41 min
Sep 22, 3:45 AM CDT	Lake Wind Advisory	PAH	13 hr
Sep 27, 4:00 AM CDT	Lake Wind Advisory	PAH	13 hr
Oct 8, 5:45 AM CDT	Dense Fog Advisory	PAH	3 hr
Oct 11, 2:01 PM CDT	Special Weather Statement	PAH	59 min
Oct 15, 5:47 PM CDT	Special Weather Statement	PAH	28 min
Oct 24, 5:44 PM CDT	Tornado Watch	SPC	7 hr
Oct 24, 10:33 PM CDT	Mesoscale Discussion	SPC	2 hr
Nov 2, 3:38 AM CDT	Freeze Watch	PAH	24 hr
Nov 2, 11:21 AM CDT	Freeze Warning	PAH	22 hr
Nov 3, 3:19 AM CDT	Freeze Warning	PAH	30 hr
Dec 2, 2:00 AM CST	Dense Fog Advisory	PAH	4 hr
Dec 5, 8:59 PM CST	Tornado Watch	SPC	7 hr
Dec 5, 10:27 PM CST	Tornado Warning	PAH	19 min
Dec 5, 10:45 PM CST	Severe Thunderstorm Warning	PAH	45 min
Dec 5, 11:28 PM CST	Mesoscale Discussion	SPC	2 hr
Dec 10, 3:07 PM CST	Tornado Watch	SPC	11 hr
Dec 10, 11:03 PM CST	Tornado Watch	SPC	5 hr
Dec 10, 11:28 PM CST	Mesoscale Discussion	SPC	92 min
Dec 11, 12:08 AM CST	Severe Thunderstorm Warning	PAH	32 min
Dec 15, 3:30 AM CST	Wind Advisory	PAH	24 hr
Dec 17, 3:08 PM CST	Flood Watch	PAH	12 hr
Dec 25, 11:55 PM CST	Dense Fog Advisory	PAH	10 hr
Dec 29, 10:01 PM CST	Dense Fog Advisory	PAH	11 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	4
Tornado Warning	1
Severe Thunderstorm Watch	6
Tornado Watch	5
Mesoscale Discussion	24
Special Weather Statement	12
Flooding
Flash Flood Warning	4
Flash Flood Watch	3
Flood Watch	3
Areal Flood Advisory	8
Winter
Winter Storm Warning	1
Winter Storm Watch	2
Winter Weather Advisory	4
Heat
Heat Advisory	5
Cold
Freeze Warning	6
Freeze Watch	3
Frost Advisory	1
Wind Chill Advisory	1
Wind and dust
Lake Wind Advisory	9
Wind Advisory	2
Fog and smoke
Dense Fog Advisory	9

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force now Tornadoes on record Forecast The radar archive 2020 2022

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.