Weather alerts in Illinois, October 2009

170 weather alerts in October 2009, 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 October 2009. Tap one for its archive.

Alerts: 170
Warnings: 104
Watches: 15
Advisories: 46
Busiest day: October 30, 200953 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
Oct 1, 4:38 AM CDT	Small Craft Advisory	LOT		47 hr
Oct 1, 4:24 PM CDT	Gale Warning	LOT		28 hr
Oct 1, 6:00 PM CDT	Special Weather Statement	ILX	Tazewell	30 min
Oct 5, 2:45 AM CDT	Gale Watch	LOT		18 hr
Oct 5, 8:54 PM CDT	Gale Warning	LOT		36 hr
Oct 6, 3:29 AM CDT	Small Craft Advisory	LOT		12 hr
Oct 6, 9:09 PM CDT	Wind Advisory	LOT	Boone, DeKalb, DuPage, Grundy, Kane, Kendall and 6 more	5 hr
Oct 6, 9:35 PM CDT	Storm Warning	LOT		6 hr
Oct 7, 3:43 AM CDT	Flash Flood Watch	ILX	Champaign, Christian, Clark, Clay, Coles, Crawford and 12 more	57 hr
Oct 7, 4:18 AM CDT	Flash Flood Watch	LSX	Bond, Calhoun, Clinton, Fayette, Greene, Jersey and 8 more	47 hr
Oct 7, 9:21 AM CDT	Small Craft Advisory	LOT		6 hr
Oct 7, 3:35 PM CDT	Flood Watch	PAH	Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 13 more	45 hr
Oct 8, 8:51 AM CDT	Flash Flood Warning	LSX	Bond, Calhoun, Jersey, Macoupin, Madison, Montgomery	4 hr
Oct 8, 9:59 AM CDT	Flash Flood Warning	LSX	Fayette	3 hr
Oct 8, 10:00 AM CDT	River Flood Warning	IND	Wabash	4 days
Oct 8, 10:00 AM CDT	River Flood Warning	IND	Wabash	3 days
Oct 8, 11:56 AM CDT	Flash Flood Warning	ILX	Effingham, Jasper	6 hr
Oct 8, 12:42 PM CDT	Flash Flood Warning	LSX	Bond, Calhoun, Fayette, Jersey, Macoupin, Madison and 1 more	5 hr
Oct 8, 5:26 PM CDT	Mesoscale Discussion	SPC	Bond, Calhoun, Clay, Clinton, Cumberland, Edwards and 19 more	2 hr
Oct 8, 6:04 PM CDT	Areal Flood Warning	LSX	Bond, Calhoun, Fayette, Greene, Jersey, Macoupin and 2 more	18 hr
Oct 8, 7:35 PM CDT	Mesoscale Discussion	SPC	Alexander, Massac, Pulaski	55 min
Oct 8, 8:00 PM CDT	Tornado Watch	SPC	Alexander, Hardin, Johnson, Massac, Pope, Pulaski	7 hr
Oct 8, 8:16 PM CDT	Flash Flood Warning	PAH	Johnson, Massac, Pope	78 min
Oct 8, 8:40 PM CDT	Flash Flood Warning	PAH	Hardin, Pope	54 min
Oct 8, 8:58 PM CDT	Flash Flood Warning	PAH	Edwards, Franklin, Hamilton, Jackson, Jefferson, Perry and 5 more	6 hr
Oct 8, 9:21 PM CDT	River Flood Warning	ILX	Clay, Richland	5 days
Oct 8, 9:43 PM CDT	Flash Flood Warning	PAH	Jackson, Union	3 hr
Oct 8, 9:50 PM CDT	Small Craft Advisory	LOT		30 hr
Oct 8, 10:24 PM CDT	Flash Flood Warning	PAH	Gallatin, Saline, Wabash, White	6 hr
Oct 8, 10:36 PM CDT	Flash Flood Warning	PAH	Alexander, Gallatin, Hardin, Jackson, Johnson, Pope and 4 more	6 hr
Oct 8, 10:50 PM CDT	Areal Flood Warning	LSX	Clinton, Madison, Marion, Monroe, Randolph, Saint Clair and 1 more	12 hr
Oct 8, 11:06 PM CDT	Mesoscale Discussion	SPC	Alexander, Hardin, Massac, Pope, Pulaski	84 min
Oct 8, 11:27 PM CDT	Flash Flood Warning	PAH	Gallatin, Hardin, Pope	6 hr
Oct 8, 11:39 PM CDT	Flash Flood Warning	PAH	Alexander, Johnson, Massac, Pope, Pulaski	6 hr
Oct 9, 12:49 AM CDT	Areal Flood Advisory	PAH	Union	3 hr
Oct 9, 3:13 AM CDT	Areal Flood Advisory	PAH	Edwards, Franklin, Gallatin, Hamilton, Jackson, Jefferson and 6 more	4 hr
Oct 9, 4:02 AM CDT	Frost Advisory	DVN	Bureau, Hancock, Henderson, Henry, McDonough, Mercer and 4 more	17 hr
Oct 9, 4:02 AM CDT	Freeze Watch	DVN	Bureau, Hancock, Henderson, Henry, McDonough, Mercer and 4 more	18 hr
Oct 9, 4:02 AM CDT	Freeze Warning	DVN	Bureau, Carroll, Hancock, Henderson, Henry, Jo Daviess and 7 more	29 hr
Oct 9, 4:33 AM CDT	Areal Flood Advisory	PAH	Alexander, Gallatin, Hardin, Jackson, Johnson, Pope and 6 more	4 hr
Oct 9, 4:37 AM CDT	Frost Advisory	LOT	Boone, DeKalb, DuPage, Grundy, Kane, Kankakee and 6 more	24 hr
Oct 9, 5:30 AM CDT	Areal Flood Advisory	PAH	Gallatin, Hardin, Pope	3 hr
Oct 9, 5:46 AM CDT	Areal Flood Advisory	PAH	Massac, Pope	3 hr
Oct 9, 3:25 PM CDT	Frost Advisory	ILX	Cass, Fulton, Knox, Marshall, Mason, Morgan and 6 more	18 hr
Oct 9, 4:00 PM CDT	Freeze Warning	LOT	Boone, DeKalb, DuPage, Ford, Grundy, Iroquois and 10 more	41 hr
Oct 9, 4:07 PM CDT	Frost Advisory	LSX	Adams, Brown, Pike	16 hr
Oct 10, 2:11 AM CDT	Freeze Warning	ILX	Cass, Champaign, DeWitt, Fulton, Knox, Logan and 15 more	25 hr
Oct 10, 3:55 AM CDT	Freeze Warning	LSX	Adams, Brown, Calhoun, Greene, Jersey, Macoupin and 2 more	23 hr
Oct 10, 3:12 PM CDT	Frost Advisory	ILX	Christian, Clark, Coles, Cumberland, Douglas, Edgar and 2 more	18 hr
Oct 10, 3:59 PM CDT	Small Craft Advisory	LOT		22 hr
Oct 11, 9:31 AM CDT	River Flood Warning	PAH	Gallatin, Wayne, White	24 hr
Oct 12, 3:41 PM CDT	Small Craft Advisory	LOT		30 hr
Oct 13, 4:35 PM CDT	River Flood Warning	PAH	Franklin, Williamson	31 hr
Oct 13, 6:37 PM CDT	Small Craft Advisory	LOT		3 hr
Oct 14, 8:36 AM CDT	Small Craft Advisory	LOT		49 hr
Oct 17, 12:12 AM CDT	Small Craft Advisory	LOT		21 hr
Oct 17, 3:23 AM CDT	Frost Advisory	ILX	Cass, Champaign, Christian, Clark, Clay, Coles and 29 more	30 hr
Oct 17, 3:56 AM CDT	Frost Advisory	PAH	Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 13 more	29 hr
Oct 17, 4:22 AM CDT	Frost Advisory	LSX	Adams, Bond, Brown, Calhoun, Clinton, Fayette and 11 more	29 hr
Oct 18, 3:41 AM CDT	Gale Watch	LOT		6 hr
Oct 18, 9:46 AM CDT	Gale Warning	LOT		23 hr
Oct 18, 4:44 PM CDT	Small Craft Advisory	LOT		26 hr
Oct 21, 2:57 PM CDT	Small Craft Advisory	LOT		65 hr
Oct 22, 3:02 AM CDT	Gale Watch	LOT		12 hr
Oct 22, 3:09 PM CDT	Gale Warning	LOT		32 hr
Oct 22, 10:06 PM CDT	Areal Flood Advisory	LSX	Bond, Calhoun, Clinton, Fayette, Greene, Jersey and 8 more	5 hr
Oct 23, 8:27 AM CDT	Areal Flood Advisory	LOT	Cook, DuPage, Kankakee, Will	6 hr
Oct 23, 8:48 AM CDT	River Flood Warning	LOT	Cook	18 hr
Oct 23, 9:30 AM CDT	River Flood Warning	ILX	Clay, Richland	4 days
Oct 23, 10:30 AM CDT	River Flood Advisory	LOT	Boone	11 hr
Oct 23, 10:30 AM CDT	River Flood Advisory	LOT	Winnebago	32 hr
Oct 23, 10:05 PM CDT	River Flood Warning	ILX	Piatt	13 days
Oct 24, 5:28 AM CDT	Flash Flood Watch	ILX	Sangamon	13 hr
Oct 24, 8:39 PM CDT	River Flood Warning	ILX	Cass, Mason	61 hr
Oct 25, 11:10 AM CDT	River Flood Warning	LSX	Pike, Scott	52 days
Oct 26, 5:40 AM CDT	River Flood Warning	ILX	Brown, Cass, Morgan, Schuyler	50 days
Oct 26, 11:07 AM CDT	River Flood Warning	LSX	Morgan, Pike	43 days
Oct 26, 11:32 AM CDT	River Flood Warning	ILX	Fulton, Mason	44 days
Oct 26, 5:30 PM CDT	Marine Weather Statement	LOT		45 hr
Oct 27, 4:15 AM CDT	Dense Fog Advisory	LOT	Boone, DeKalb, Lee, McHenry, Ogle, Winnebago	6 hr
Oct 28, 4:20 AM CDT	Flash Flood Watch	PAH	Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 13 more	61 hr
Oct 28, 11:59 AM CDT	River Flood Warning	LSX	Randolph	13 days
Oct 28, 2:56 PM CDT	Gale Watch	LOT		25 hr
Oct 28, 3:21 PM CDT	Flash Flood Watch	ILX	Cass, Champaign, Christian, Clark, Clay, Coles and 29 more	4 days
Oct 28, 3:50 PM CDT	Small Craft Advisory	LOT		3 days
Oct 28, 3:58 PM CDT	Flash Flood Watch	LSX	Adams, Bond, Brown, Calhoun, Clinton, Fayette and 11 more	47 hr
Oct 29, 9:46 AM CDT	River Flood Advisory	LOT	Kane, McHenry	3 days
Oct 29, 9:46 AM CDT	River Flood Advisory	LOT	Kane, Kendall	3 days
Oct 29, 11:22 AM CDT	River Flood Warning	LOT	Bureau, LaSalle	10 days
Oct 29, 2:46 PM CDT	Flash Flood Watch	DVN	Bureau, Hancock, Henderson, Henry, McDonough, Mercer and 3 more	13 hr
Oct 29, 3:13 PM CDT	Flood Watch	LOT	DuPage, Ford, Grundy, Iroquois, Kankakee, Kendall and 2 more	24 hr
Oct 29, 3:45 PM CDT	River Flood Warning	IND	Wabash	19 hr
Oct 29, 3:45 PM CDT	River Flood Warning	IND	Wabash	19 hr
Oct 29, 3:45 PM CDT	River Flood Warning	IND	Clark, Crawford	19 hr
Oct 29, 3:45 PM CDT	River Flood Warning	IND	Crawford, Lawrence	19 hr
Oct 29, 3:45 PM CDT	River Flood Warning	IND	Crawford, Lawrence	19 hr
Oct 29, 3:45 PM CDT	River Flood Warning	IND	Edwards, Gallatin, Wabash, White	19 hr
Oct 29, 4:05 PM CDT	Gale Warning	LOT		47 hr
Oct 29, 4:19 PM CDT	Flash Flood Warning	LSX	Calhoun, Greene, Jersey, Pike	6 hr
Oct 29, 5:36 PM CDT	Areal Flood Advisory	ILX	Cass, Morgan, Schuyler, Scott	7 hr
Oct 29, 6:55 PM CDT	Flash Flood Warning	DVN	McDonough	9 hr
Oct 29, 8:13 PM CDT	River Flood Advisory	LOT	Cook	38 hr
Oct 29, 9:19 PM CDT	River Flood Advisory	LOT	Boone	46 hr
Oct 29, 9:19 PM CDT	River Flood Advisory	LOT	Winnebago	37 hr
Oct 29, 9:29 PM CDT	River Flood Advisory	LOT	Grundy	25 hr
Oct 29, 9:32 PM CDT	River Flood Warning	LOT	LaSalle	3 days
Oct 29, 9:33 PM CDT	Flash Flood Warning	DVN	Hancock, Henderson	8 hr
Oct 29, 9:39 PM CDT	Flash Flood Warning	LSX	Adams, Brown, Calhoun, Greene, Jersey, Pike	9 hr
Oct 29, 9:54 PM CDT	River Flood Warning	LSX	Calhoun, Jersey	33 days
Oct 30, 1:39 AM CDT	River Flood Warning	LSX	Fayette	4 days
Oct 30, 2:10 AM CDT	River Flood Warning	LSX	Pike	7 days
Oct 30, 2:10 AM CDT	River Flood Warning	LSX	Pike	6 days
Oct 30, 2:10 AM CDT	River Flood Warning	LSX	Pike	8 days
Oct 30, 2:10 AM CDT	River Flood Warning	LSX	Calhoun	9 days
Oct 30, 2:10 AM CDT	River Flood Warning	LSX	Calhoun	8 days
Oct 30, 2:10 AM CDT	River Flood Warning	LSX	Jersey	13 days
Oct 30, 2:10 AM CDT	River Flood Warning	LSX	Madison	9 days
Oct 30, 2:10 AM CDT	River Flood Warning	LSX	Saint Clair	7 days
Oct 30, 2:48 AM CDT	River Flood Warning	LSX	Brown	67 hr
Oct 30, 3:25 AM CDT	River Flood Warning	DVN	Hancock, McDonough	69 hr
Oct 30, 3:25 AM CDT	River Flood Warning	ILX	Sangamon	8 hr
Oct 30, 3:25 AM CDT	River Flood Warning	ILX	Cass, Mason, Menard	7 days
Oct 30, 3:25 AM CDT	River Flood Warning	ILX	Cass, Mason	9 days
Oct 30, 3:27 AM CDT	River Flood Warning	ILX	McLean, Tazewell, Woodford	4 days
Oct 30, 4:25 AM CDT	Flash Flood Warning	LSX	Monroe, Saint Clair	6 hr
Oct 30, 4:27 AM CDT	River Flood Warning	LSX	Adams	6 days
Oct 30, 5:01 AM CDT	Areal Flood Advisory	ILX	Cass, Mason, Morgan, Schuyler, Scott	6 hr
Oct 30, 5:35 AM CDT	River Flood Warning	PAH	Franklin, Williamson	15 hr
Oct 30, 5:35 AM CDT	River Flood Warning	PAH	Jackson	10 days
Oct 30, 5:46 AM CDT	River Flood Warning	PAH	Alexander, Jackson, Union	11 days
Oct 30, 5:50 AM CDT	River Flood Warning	PAH	Gallatin, Wayne, White	3 hr
Oct 30, 5:53 AM CDT	River Flood Warning	PAH	Wayne, White	15 hr
Oct 30, 5:56 AM CDT	River Flood Warning	PAH	Gallatin, Wabash, White	3 hr
Oct 30, 6:25 AM CDT	Areal Flood Warning	LSX	Adams, Brown, Calhoun, Greene, Jersey, Pike	12 hr
Oct 30, 7:02 AM CDT	Flash Flood Warning	LSX	Bond, Clinton, Madison	6 hr
Oct 30, 7:34 AM CDT	Flash Flood Warning	LSX	Fayette, Marion, Montgomery	5 hr
Oct 30, 8:01 AM CDT	Areal Flood Warning	PAH	Alexander, Franklin, Jackson, Jefferson, Perry, Pulaski and 2 more	6 hr
Oct 30, 8:06 AM CDT	River Flood Warning	LSX	Adams	5 days
Oct 30, 8:40 AM CDT	River Flood Warning	LOT	Cook	32 hr
Oct 30, 8:58 AM CDT	Areal Flood Warning	LSX	Macoupin	10 hr
Oct 30, 9:06 AM CDT	River Flood Warning	DVN	Hancock	61 hr
Oct 30, 9:47 AM CDT	River Flood Warning	DVN	Henry, Rock Island, Whiteside	3 days
Oct 30, 9:47 AM CDT	River Flood Warning	DVN	Henry, Rock Island	3 days
Oct 30, 10:38 AM CDT	Areal Flood Warning	LSX	Monroe, Randolph, Saint Clair, Washington	9 hr
Oct 30, 11:01 AM CDT	River Flood Warning	PAH	Alexander	10 days
Oct 30, 11:14 AM CDT	River Flood Warning	PAH	Alexander, Pulaski	9 days
Oct 30, 11:21 AM CDT	River Flood Warning	ILX	Fulton, Knox	52 hr
Oct 30, 11:44 AM CDT	River Flood Warning	LSX	Brown	32 days
Oct 30, 12:12 PM CDT	River Flood Warning	LSX	Adams	4 days
Oct 30, 1:04 PM CDT	Areal Flood Warning	LSX	Bond, Clinton, Fayette, Madison, Marion, Montgomery	9 hr
Oct 30, 1:29 PM CDT	Areal Flood Advisory	ILX	McLean	3 hr
Oct 30, 2:20 PM CDT	Areal Flood Advisory	PAH	Massac, Pope	3 hr
Oct 30, 3:34 PM CDT	Areal Flood Advisory	ILX	Logan	4 hr
Oct 30, 6:42 PM CDT	Areal Flood Warning	LSX	Calhoun, Greene, Jersey, Macoupin	18 hr
Oct 30, 7:30 PM CDT	Areal Flood Advisory	ILX	Logan	12 hr
Oct 30, 7:33 PM CDT	Areal Flood Warning	LSX	Monroe, Randolph, Saint Clair, Washington	18 hr
Oct 30, 8:54 PM CDT	River Flood Warning	LOT	LaSalle	24 hr
Oct 30, 9:14 PM CDT	River Flood Warning	ILX	Mason, Menard	62 hr
Oct 30, 9:53 PM CDT	Areal Flood Warning	LSX	Bond, Clinton, Fayette, Madison, Marion, Montgomery	11 hr
Oct 30, 10:00 PM CDT	River Flood Advisory	LOT	LaSalle	48 min
Oct 30, 10:03 PM CDT	River Flood Warning	LOT	Grundy	41 hr
Oct 30, 10:14 PM CDT	River Flood Advisory	LOT	LaSalle	7 hr
Oct 31, 4:51 AM CDT	River Flood Warning	LOT	LaSalle	54 hr
Oct 31, 7:35 AM CDT	Areal Flood Advisory	ILX	Logan	6 hr
Oct 31, 8:56 AM CDT	River Flood Warning	ILX	Clay, Richland	4 days
Oct 31, 9:42 AM CDT	River Flood Warning	LOT	Livingston	34 hr
Oct 31, 10:26 AM CDT	River Flood Warning	IND	Wabash	44 hr
Oct 31, 10:26 AM CDT	River Flood Warning	IND	Wabash	44 hr
Oct 31, 11:36 AM CDT	River Flood Warning	ILX	Peoria, Tazewell, Woodford	12 days
Oct 31, 1:18 PM CDT	Areal Flood Warning	LSX	Randolph	24 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
Tornado Watch	1
Mesoscale Discussion	3
Special Weather Statement	1
Flooding
Areal Flood Warning	11
Flash Flood Warning	19
River Flood Warning	64
Flash Flood Watch	7
Flood Watch	2
Areal Flood Advisory	14
River Flood Advisory	10
Cold
Freeze Warning	4
Freeze Watch	1
Frost Advisory	8
Wind and dust
Wind Advisory	1
Fog and smoke
Dense Fog Advisory	1
Marine
Gale Warning	5
Storm Warning	1
Gale Watch	4
Small Craft Advisory	12
Marine Weather Statement	1

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 2008 2010

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.