Alert archive / Illinois / LaSalle County

Weather alerts in LaSalle County, Illinois, 2011

208 weather alerts in 2011, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

LaSalle County and its neighbors

Each county as a circle sized by its count in 2011. Tap one for its archive.

Alerts: 208
Warnings: 55
Watches: 29
Advisories: 68
Busiest month: May52 alerts
Busiest day: June 9, 201117 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, 10:57 AM CST	River Flood Advisory	LOT	24 hr
Jan 1, 11:10 AM CST	River Flood Advisory	LOT	18 hr
Jan 2, 6:11 AM CST	River Flood Advisory	LOT	14 hr
Jan 10, 3:29 AM CST	Winter Weather Advisory	LOT	41 hr
Jan 17, 4:10 AM CST	Winter Weather Advisory	LOT	24 hr
Jan 19, 2:50 PM CST	Wind Chill Advisory	LOT	44 hr
Jan 24, 2:20 AM CST	Freezing Rain Advisory	LOT	9 hr
Jan 30, 5:26 AM CST	Winter Storm Watch	LOT	6 hr
Jan 30, 11:34 AM CST	Blizzard Watch	LOT	28 hr
Jan 31, 3:20 PM CST	Blizzard Warning	LOT	48 hr
Feb 1, 3:36 PM CST	Mesoscale Discussion	SPC	6 hr
Feb 2, 4:31 AM CST	Wind Chill Watch	LOT	11 hr
Feb 2, 3:26 PM CST	Wind Chill Advisory	LOT	19 hr
Feb 8, 3:50 AM CST	Wind Chill Advisory	LOT	29 hr
Feb 9, 3:09 PM CST	Wind Chill Advisory	LOT	19 hr
Feb 17, 9:53 AM CST	River Flood Advisory	LOT	58 hr
Feb 17, 10:36 AM CST	River Flood Warning	LOT	7 days
Feb 17, 11:02 AM CST	River Flood Advisory	LOT	3 days
Feb 20, 4:35 AM CST	Mesoscale Discussion	SPC	6 hr
Feb 20, 9:29 PM CST	River Flood Advisory	LOT	62 hr
Feb 21, 10:46 AM CST	River Flood Advisory	LOT	21 hr
Feb 24, 4:12 AM CST	Winter Weather Advisory	LOT	27 hr
Feb 24, 5:20 PM CST	Mesoscale Discussion	SPC	6 hr
Feb 26, 9:12 PM CST	Freezing Rain Advisory	LOT	7 hr
Feb 27, 10:04 AM CST	River Flood Warning	LOT	24 hr
Feb 27, 10:49 AM CST	River Flood Warning	LOT	11 hr
Feb 27, 10:49 AM CST	River Flood Warning	LOT	15 days
Feb 27, 3:37 PM CST	Winter Weather Advisory	LOT	12 hr
Feb 27, 8:49 PM CST	Mesoscale Discussion	SPC	6 hr
Feb 27, 9:20 PM CST	Areal Flood Advisory	LOT	5 hr
Feb 28, 10:58 AM CST	River Flood Advisory	LOT	55 hr
Mar 4, 11:40 AM CST	River Flood Watch	LOT	19 hr
Mar 4, 10:02 PM CST	River Flood Advisory	LOT	5 days
Mar 10, 8:07 PM CST	River Flood Advisory	LOT	16 hr
Apr 3, 8:54 PM CDT	Severe Thunderstorm Watch	SPC	5 hr
Apr 3, 9:59 PM CDT	Special Weather Statement	LOT	61 min
Apr 3, 10:11 PM CDT	Severe Thunderstorm Warning	LOT	64 min
Apr 3, 11:33 PM CDT	Special Weather Statement	LOT	27 min
Apr 4, 12:42 AM CDT	Special Weather Statement	LOT	63 min
Apr 7, 5:13 AM CDT	Dense Fog Advisory	LOT	7 hr
Apr 10, 6:05 PM CDT	Tornado Watch	SPC	7 hr
Apr 15, 4:12 AM CDT	Wind Advisory	LOT	16 hr
Apr 19, 11:51 AM CDT	River Flood Watch	LOT	23 hr
Apr 19, 6:55 PM CDT	Special Weather Statement	LOT	35 min
Apr 20, 11:02 AM CDT	River Flood Advisory	LOT	24 hr
Apr 20, 11:14 AM CDT	River Flood Warning	LOT	19 days
Apr 20, 11:16 AM CDT	River Flood Advisory	LOT	59 hr
Apr 22, 8:56 PM CDT	Special Weather Statement	LOT	64 min
Apr 22, 9:23 PM CDT	River Flood Advisory	LOT	24 hr
Apr 22, 9:23 PM CDT	River Flood Advisory	LOT	13 hr
Apr 22, 10:30 PM CDT	River Flood Warning	LOT	54 hr
Apr 23, 10:24 AM CDT	River Flood Warning	LOT	23 hr
Apr 25, 10:52 AM CDT	River Flood Warning	LOT	5 days
Apr 26, 10:15 AM CDT	River Flood Advisory	LOT	25 hr
May 2, 4:02 PM CDT	Frost Advisory	LOT	15 hr
May 3, 4:02 PM CDT	Frost Advisory	LOT	16 hr
May 7, 2:32 PM CDT	Mesoscale Discussion	SPC	118 min
May 7, 2:59 PM CDT	Severe Thunderstorm Watch	SPC	7 hr
May 11, 1:23 PM CDT	Severe Thunderstorm Watch	SPC	6 hr
May 11, 3:38 PM CDT	Mesoscale Discussion	SPC	2 hr
May 11, 5:43 PM CDT	Severe Thunderstorm Warning	LOT	62 min
May 11, 5:56 PM CDT	Severe Thunderstorm Watch	SPC	5 hr
May 13, 1:33 PM CDT	Flash Flood Warning	LOT	6 hr
May 13, 4:40 PM CDT	Mesoscale Discussion	SPC	95 min
May 14, 11:15 AM CDT	Areal Flood Advisory	LOT	4 hr
May 15, 8:37 PM CDT	River Flood Advisory	LOT	47 hr
May 16, 3:11 PM CDT	Frost Advisory	LOT	16 hr
May 19, 5:20 AM CDT	Dense Fog Advisory	LOT	5 hr
May 22, 4:41 AM CDT	Mesoscale Discussion	SPC	2 hr
May 22, 1:49 PM CDT	Mesoscale Discussion	SPC	56 min
May 22, 2:04 PM CDT	Tornado Watch	SPC	9 hr
May 22, 5:47 PM CDT	Mesoscale Discussion	SPC	88 min
May 22, 8:10 PM CDT	Severe Thunderstorm Warning	LOT	50 min
May 22, 9:35 PM CDT	Mesoscale Discussion	SPC	55 min
May 22, 9:50 PM CDT	Severe Thunderstorm Warning	LOT	37 min
May 24, 1:11 PM CDT	Mesoscale Discussion	SPC	94 min
May 25, 5:46 AM CDT	Tornado Watch	SPC	7 hr
May 25, 6:20 AM CDT	Special Weather Statement	LOT	40 min
May 25, 7:09 AM CDT	Special Weather Statement	LOT	36 min
May 25, 11:38 AM CDT	River Flood Watch	LOT	11 hr
May 25, 1:57 PM CDT	Flash Flood Watch	LOT	9 hr
May 25, 2:31 PM CDT	Tornado Watch	SPC	7 hr
May 25, 5:48 PM CDT	Mesoscale Discussion	SPC	117 min
May 25, 6:27 PM CDT	Tornado Warning	LOT	24 min
May 25, 7:06 PM CDT	Areal Flood Advisory	LOT	6 hr
May 25, 7:46 PM CDT	Flash Flood Warning	LOT	5 hr
May 25, 10:14 PM CDT	River Flood Warning	LOT	13 days
May 25, 10:21 PM CDT	River Flood Watch	LOT	7 hr
May 26, 4:56 AM CDT	River Flood Warning	LOT	4 days
May 26, 10:25 AM CDT	River Flood Warning	LOT	11 hr
May 26, 10:25 AM CDT	River Flood Warning	LOT	31 hr
May 28, 5:05 PM CDT	Areal Flood Advisory	LOT	4 hr
May 29, 8:39 AM CDT	Mesoscale Discussion	SPC	66 min
May 29, 8:53 AM CDT	Severe Thunderstorm Watch	SPC	6 hr
May 29, 10:34 AM CDT	Areal Flood Advisory	LOT	6 hr
May 29, 11:13 AM CDT	Severe Thunderstorm Warning	LOT	62 min
May 29, 11:31 AM CDT	Flash Flood Warning	LOT	6 hr
May 29, 11:51 AM CDT	Areal Flood Advisory	LOT	4 hr
May 29, 11:58 AM CDT	Severe Thunderstorm Warning	LOT	77 min
May 29, 11:59 AM CDT	Mesoscale Discussion	SPC	61 min
May 29, 8:31 PM CDT	River Flood Advisory	LOT	10 hr
May 29, 9:57 PM CDT	River Flood Warning	LOT	55 hr
May 30, 6:18 AM CDT	River Flood Warning	LOT	37 hr
May 31, 12:59 PM CDT	Mesoscale Discussion	SPC	3 hr
May 31, 2:20 PM CDT	Severe Thunderstorm Warning	LOT	55 min
May 31, 2:33 PM CDT	Severe Thunderstorm Watch	SPC	7 hr
Jun 4, 1:27 PM CDT	Mesoscale Discussion	SPC	63 min
Jun 4, 2:08 PM CDT	Severe Thunderstorm Watch	SPC	7 hr
Jun 8, 11:08 AM CDT	Mesoscale Discussion	SPC	97 min
Jun 8, 8:43 PM CDT	Mesoscale Discussion	SPC	92 min
Jun 8, 9:47 PM CDT	Severe Thunderstorm Warning	LOT	58 min
Jun 8, 10:44 PM CDT	Severe Thunderstorm Warning	LOT	61 min
Jun 8, 11:45 PM CDT	Mesoscale Discussion	SPC	90 min
Jun 8, 11:55 PM CDT	Areal Flood Advisory	LOT	6 hr
Jun 9, 1:44 AM CDT	Mesoscale Discussion	SPC	2 hr
Jun 9, 4:04 AM CDT	Severe Thunderstorm Warning	LOT	56 min
Jun 9, 5:33 AM CDT	Flash Flood Warning	LOT	6 hr
Jun 9, 5:46 AM CDT	Mesoscale Discussion	SPC	59 min
Jun 9, 6:00 AM CDT	Severe Thunderstorm Warning	LOT	60 min
Jun 9, 10:35 AM CDT	River Flood Warning	LOT	9 days
Jun 9, 10:41 AM CDT	River Flood Advisory	LOT	5 hr
Jun 9, 11:26 AM CDT	Flash Flood Warning	LOT	6 hr
Jun 9, 3:08 PM CDT	River Flood Warning	LOT	42 hr
Jun 9, 3:24 PM CDT	Flash Flood Watch	LOT	17 hr
Jun 9, 3:54 PM CDT	River Flood Warning	LOT	61 hr
Jun 9, 5:52 PM CDT	Areal Flood Warning	LOT	24 hr
Jun 15, 2:53 AM CDT	Severe Thunderstorm Warning	LOT	37 min
Jun 20, 4:08 AM CDT	Mesoscale Discussion	SPC	67 min
Jun 20, 5:43 AM CDT	Severe Thunderstorm Warning	LOT	62 min
Jun 20, 6:29 AM CDT	Areal Flood Advisory	LOT	6 hr
Jun 20, 10:37 AM CDT	River Flood Warning	LOT	5 days
Jun 20, 11:00 AM CDT	Flash Flood Warning	LOT	6 hr
Jun 20, 11:41 AM CDT	River Flood Advisory	LOT	46 hr
Jun 20, 4:43 PM CDT	Areal Flood Advisory	LOT	6 hr
Jun 21, 11:45 AM CDT	Mesoscale Discussion	SPC	3 hr
Jun 21, 4:56 PM CDT	Mesoscale Discussion	SPC	94 min
Jun 21, 5:42 PM CDT	Severe Thunderstorm Watch	SPC	4 hr
Jun 21, 6:37 PM CDT	Severe Thunderstorm Warning	LOT	68 min
Jun 21, 7:27 PM CDT	Tornado Warning	LOT	33 min
Jun 21, 7:31 PM CDT	Severe Thunderstorm Warning	LOT	37 min
Jun 21, 8:01 PM CDT	Areal Flood Advisory	LOT	6 hr
Jun 21, 9:19 PM CDT	Areal Flood Advisory	LOT	6 hr
Jun 22, 11:19 AM CDT	River Flood Advisory	LOT	17 hr
Jun 30, 10:59 AM CDT	Heat Advisory	LOT	34 hr
Jul 2, 1:06 PM CDT	Mesoscale Discussion	SPC	54 min
Jul 10, 2:45 PM CDT	Mesoscale Discussion	SPC	2 hr
Jul 11, 5:07 AM CDT	Mesoscale Discussion	SPC	113 min
Jul 11, 5:37 AM CDT	Severe Thunderstorm Watch	SPC	6 hr
Jul 11, 6:16 AM CDT	Severe Thunderstorm Warning	LOT	59 min
Jul 11, 7:03 AM CDT	Severe Thunderstorm Warning	LOT	57 min
Jul 11, 7:10 AM CDT	Mesoscale Discussion	SPC	95 min
Jul 17, 3:38 AM CDT	Heat Advisory	LOT	16 hr
Jul 17, 3:40 PM CDT	Heat Advisory	LOT	60 hr
Jul 19, 2:26 AM CDT	Excessive Heat Watch	LOT	14 hr
Jul 19, 2:26 AM CDT	Excessive Heat Warning	LOT	5 days
Jul 19, 1:04 PM CDT	Mesoscale Discussion	SPC	86 min
Jul 21, 4:06 AM CDT	Excessive Heat Watch	LOT	24 hr
Jul 22, 3:50 AM CDT	Excessive Heat Watch	LOT	24 hr
Jul 22, 7:38 PM CDT	Mesoscale Discussion	SPC	97 min
Jul 23, 3:40 AM CDT	Heat Advisory	LOT	32 hr
Jul 23, 11:43 PM CDT	Flash Flood Warning	LOT	6 hr
Jul 24, 6:44 AM CDT	Severe Thunderstorm Warning	LOT	47 min
Jul 26, 1:11 PM CDT	Mesoscale Discussion	SPC	94 min
Jul 27, 12:12 PM CDT	Heat Advisory	LOT	7 hr
Jul 28, 4:04 AM CDT	Heat Advisory	LOT	17 hr
Jul 28, 11:51 PM CDT	Mesoscale Discussion	SPC	84 min
Jul 29, 6:36 AM CDT	Special Weather Statement	LOT	54 min
Aug 2, 3:38 AM CDT	Heat Advisory	LOT	20 hr
Aug 2, 12:57 PM CDT	Mesoscale Discussion	SPC	93 min
Aug 2, 5:22 PM CDT	Severe Thunderstorm Watch	SPC	9 hr
Aug 2, 8:34 PM CDT	Mesoscale Discussion	SPC	86 min
Aug 2, 9:33 PM CDT	Severe Thunderstorm Warning	LOT	57 min
Aug 2, 10:01 PM CDT	Severe Thunderstorm Warning	LOT	59 min
Aug 2, 10:03 PM CDT	Areal Flood Advisory	LOT	4 hr
Aug 8, 1:06 PM CDT	Mesoscale Discussion	SPC	84 min
Aug 8, 5:23 PM CDT	Mesoscale Discussion	SPC	67 min
Aug 8, 5:38 PM CDT	Severe Thunderstorm Watch	SPC	5 hr
Aug 13, 11:45 AM CDT	Mesoscale Discussion	SPC	60 min
Aug 13, 12:12 PM CDT	Severe Thunderstorm Watch	SPC	9 hr
Aug 13, 2:31 PM CDT	Severe Thunderstorm Warning	LOT	34 min
Aug 17, 3:44 PM CDT	Mesoscale Discussion	SPC	91 min
Aug 20, 9:08 AM CDT	Special Weather Statement	LOT	37 min
Aug 20, 9:19 PM CDT	Special Weather Statement	LOT	56 min
Aug 23, 8:36 AM CDT	Special Weather Statement	LOT	39 min
Aug 23, 9:33 AM CDT	Special Weather Statement	LOT	42 min
Sep 3, 12:24 PM CDT	Mesoscale Discussion	SPC	66 min
Sep 3, 2:17 PM CDT	Severe Thunderstorm Warning	LOT	43 min
Sep 3, 3:05 PM CDT	Severe Thunderstorm Watch	SPC	7 hr
Sep 3, 3:44 PM CDT	Severe Thunderstorm Warning	LOT	28 min
Sep 3, 5:02 PM CDT	Mesoscale Discussion	SPC	58 min
Sep 19, 11:13 PM CDT	Dense Fog Advisory	LOT	11 hr
Sep 26, 4:46 AM CDT	Areal Flood Advisory	LOT	6 hr
Sep 28, 3:37 PM CDT	Wind Advisory	LOT	45 hr
Sep 29, 6:03 PM CDT	Special Weather Statement	LOT	27 min
Oct 1, 3:48 PM CDT	Frost Advisory	LOT	16 hr
Oct 20, 3:46 AM CDT	Frost Advisory	LOT	29 hr
Oct 25, 6:56 PM CDT	Mesoscale Discussion	SPC	3 hr
Oct 25, 9:22 PM CDT	Special Weather Statement	LOT	53 min
Oct 27, 2:48 PM CDT	Frost Advisory	LOT	16 hr
Oct 28, 3:42 PM CDT	Freeze Warning	LOT	17 hr
Nov 9, 12:27 PM CST	Wind Advisory	LOT	4 hr
Nov 12, 4:08 PM CST	Wind Advisory	LOT	26 hr
Nov 18, 10:20 AM CST	Wind Advisory	LOT	7 hr
Nov 18, 11:10 AM CST	Red Flag Warning	LOT	6 hr
Dec 14, 2:31 PM CST	River Flood Advisory	LOT	19 hr
Dec 14, 9:26 PM CST	River Flood Advisory	LOT	61 hr
Dec 15, 10:54 AM CST	River Flood Advisory	LOT	44 hr
Dec 20, 9:57 PM CST	Dense Fog Advisory	LOT	12 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	23
Tornado Warning	2
Severe Thunderstorm Watch	13
Tornado Watch	4
Mesoscale Discussion	42
Special Weather Statement	14
Flooding
Areal Flood Warning	1
Flash Flood Warning	7
River Flood Warning	18
Flash Flood Watch	2
River Flood Watch	4
Areal Flood Advisory	13
River Flood Advisory	23
Winter
Blizzard Warning	1
Blizzard Watch	1
Winter Storm Watch	1
Freezing Rain Advisory	2
Winter Weather Advisory	4
Heat
Excessive Heat Warning	1
Excessive Heat Watch	3
Heat Advisory	7
Cold
Freeze Warning	1
Wind Chill Watch	1
Frost Advisory	6
Wind Chill Advisory	4
Wind and dust
Wind Advisory	5
Fire
Red Flag Warning	1
Fog and smoke
Dense Fog Advisory	4

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force now Tornadoes on record Forecast The radar archive 2010 2012

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.