Alert archive / Illinois / Severe Thunderstorm Warnings / 2019

Severe Thunderstorm Warnings in Illinois, June 2019

197 severe thunderstorm warnings in June 2019. An alert counts here when it covered any part of the state, so the counties below add up to more than the state. The archive of severe thunderstorm warnings reaches back to 1986.

Severe Thunderstorm Warnings by county

Each county as a circle sized by its count in June 2019. Tap one for its archive.

Severe Thunderstorm Warnings: 197
Busiest day: June 16, 201933 severe thunderstorm warnings

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
Jun 1, 3:33 PM CDT	Severe Thunderstorm Warning	LOT	Cook	42 min
Jun 1, 3:51 PM CDT	Severe Thunderstorm Warning	LSX	Adams	39 min
Jun 1, 4:24 PM CDT	Severe Thunderstorm Warning	LOT	Lake, McHenry	55 min
Jun 1, 4:24 PM CDT	Severe Thunderstorm Warning	LSX	Adams	51 min
Jun 1, 4:39 PM CDT	Severe Thunderstorm Warning	ILX	Knox	21 min
Jun 1, 4:49 PM CDT	Severe Thunderstorm Warning	ILX	Schuyler	41 min
Jun 1, 4:59 PM CDT	Severe Thunderstorm Warning	LSX	Adams, Brown	33 min
Jun 1, 5:08 PM CDT	Severe Thunderstorm Warning	LSX	Adams, Pike	52 min
Jun 1, 5:24 PM CDT	Severe Thunderstorm Warning	ILX	Cass, Fulton, Mason, Schuyler	41 min
Jun 1, 5:26 PM CDT	Severe Thunderstorm Warning	DVN	Hancock, McDonough	34 min
Jun 1, 5:30 PM CDT	Severe Thunderstorm Warning	ILX	Schuyler	30 min
Jun 1, 5:44 PM CDT	Severe Thunderstorm Warning	LSX	Calhoun, Greene, Pike	61 min
Jun 1, 5:55 PM CDT	Severe Thunderstorm Warning	ILX	Schuyler	24 min
Jun 1, 6:01 PM CDT	Severe Thunderstorm Warning	ILX	Cass, Morgan, Schuyler	44 min
Jun 1, 6:01 PM CDT	Severe Thunderstorm Warning	LOT	Cook	44 min
Jun 1, 6:12 PM CDT	Severe Thunderstorm Warning	LSX	Calhoun, Pike	63 min
Jun 1, 6:42 PM CDT	Severe Thunderstorm Warning	LSX	Calhoun, Greene, Jersey	63 min
Jun 1, 7:01 PM CDT	Severe Thunderstorm Warning	ILX	Morgan	29 min
Jun 1, 7:12 PM CDT	Severe Thunderstorm Warning	LSX	Calhoun, Jersey, Madison, Saint Clair	63 min
Jun 1, 8:10 PM CDT	Severe Thunderstorm Warning	LSX	Calhoun, Jersey, Madison, Monroe, Saint Clair	65 min
Jun 4, 10:07 PM CDT	Severe Thunderstorm Warning	DVN	Rock Island	38 min
Jun 4, 10:42 PM CDT	Severe Thunderstorm Warning	DVN	Bureau, Henry, Rock Island, Whiteside	48 min
Jun 4, 11:18 PM CDT	Severe Thunderstorm Warning	LOT	Lee	26 min
Jun 4, 11:24 PM CDT	Severe Thunderstorm Warning	DVN	Bureau, Putnam, Whiteside	51 min
Jun 5, 12:24 AM CDT	Severe Thunderstorm Warning	LOT	LaSalle	29 min
Jun 5, 11:21 AM CDT	Severe Thunderstorm Warning	ILX	Logan, Mason, Tazewell	39 min
Jun 5, 12:00 PM CDT	Severe Thunderstorm Warning	ILX	DeWitt, Logan, Macon	25 min
Jun 5, 2:11 PM CDT	Severe Thunderstorm Warning	ILX	Cass, Mason, Schuyler	49 min
Jun 5, 2:52 PM CDT	Severe Thunderstorm Warning	LSX	Marion	53 min
Jun 5, 3:00 PM CDT	Severe Thunderstorm Warning	ILX	Cass, Mason	26 min
Jun 5, 3:02 PM CDT	Severe Thunderstorm Warning	LSX	Brown	43 min
Jun 5, 3:12 PM CDT	Severe Thunderstorm Warning	ILX	Cass, Morgan, Scott	48 min
Jun 5, 3:54 PM CDT	Severe Thunderstorm Warning	ILX	Christian, Sangamon	51 min
Jun 5, 4:15 PM CDT	Severe Thunderstorm Warning	PAH	Wabash	30 min
Jun 5, 4:27 PM CDT	Severe Thunderstorm Warning	ILX	Christian, Shelby	48 min
Jun 5, 4:36 PM CDT	Severe Thunderstorm Warning	ILX	Clark, Edgar	39 min
Jun 5, 4:39 PM CDT	Severe Thunderstorm Warning	PAH	Wayne	36 min
Jun 5, 4:56 PM CDT	Severe Thunderstorm Warning	LSX	Bond, Fayette, Montgomery	49 min
Jun 5, 5:03 PM CDT	Severe Thunderstorm Warning	ILX	Effingham, Shelby	42 min
Jun 5, 5:15 PM CDT	Severe Thunderstorm Warning	ILX	Clark	32 min
Jun 5, 5:18 PM CDT	Severe Thunderstorm Warning	PAH	Wayne	57 min
Jun 5, 5:30 PM CDT	Severe Thunderstorm Warning	PAH	Wabash	45 min
Jun 5, 5:57 PM CDT	Severe Thunderstorm Warning	PAH	Edwards, Wabash	33 min
Jun 5, 6:01 PM CDT	Severe Thunderstorm Warning	PAH	Edwards, Wayne	29 min
Jun 5, 6:30 PM CDT	Severe Thunderstorm Warning	PAH	Edwards, White	45 min
Jun 5, 6:45 PM CDT	Severe Thunderstorm Warning	LSX	Calhoun, Jersey, Madison	45 min
Jun 5, 6:50 PM CDT	Severe Thunderstorm Warning	LSX	Calhoun	40 min
Jun 5, 7:03 PM CDT	Severe Thunderstorm Warning	LSX	Monroe, Saint Clair	42 min
Jun 5, 7:18 PM CDT	Severe Thunderstorm Warning	LSX	Madison	21 min
Jun 15, 6:01 PM CDT	Severe Thunderstorm Warning	ILX	Clark, Crawford	14 min
Jun 15, 8:07 PM CDT	Severe Thunderstorm Warning	DVN	Henderson, Mercer, Warren	53 min
Jun 15, 9:10 PM CDT	Severe Thunderstorm Warning	ILX	Knox	50 min
Jun 15, 9:19 PM CDT	Severe Thunderstorm Warning	DVN	Henry	56 min
Jun 15, 9:47 PM CDT	Severe Thunderstorm Warning	ILX	Fulton, Knox, Peoria	43 min
Jun 15, 10:06 PM CDT	Severe Thunderstorm Warning	ILX	Mason, Peoria, Tazewell	39 min
Jun 15, 10:13 PM CDT	Severe Thunderstorm Warning	ILX	Peoria, Tazewell, Woodford	34 min
Jun 15, 10:41 PM CDT	Severe Thunderstorm Warning	ILX	McLean, Tazewell, Woodford	64 min
Jun 15, 10:43 PM CDT	Severe Thunderstorm Warning	LSX	Adams, Pike	47 min
Jun 15, 11:13 PM CDT	Severe Thunderstorm Warning	ILX	DeWitt, McLean, Piatt	47 min
Jun 15, 11:28 PM CDT	Severe Thunderstorm Warning	LOT	Ford, Iroquois	47 min
Jun 15, 11:37 PM CDT	Severe Thunderstorm Warning	ILX	Champaign	53 min
Jun 15, 11:49 PM CDT	Severe Thunderstorm Warning	ILX	Champaign	41 min
Jun 16, 12:05 AM CDT	Severe Thunderstorm Warning	ILX	Morgan, Sangamon, Scott	8 min
Jun 16, 12:06 AM CDT	Severe Thunderstorm Warning	ILX	Vermilion	54 min
Jun 16, 12:06 AM CDT	Severe Thunderstorm Warning	ILX	Morgan, Scott	24 min
Jun 16, 1:14 AM CDT	Severe Thunderstorm Warning	LSX	Bond, Clinton, Madison, Saint Clair	46 min
Jun 16, 2:15 AM CDT	Severe Thunderstorm Warning	ILX	Clark, Coles, Crawford, Cumberland, Edgar, Jasper	45 min
Jun 16, 2:46 PM CDT	Severe Thunderstorm Warning	LSX	Clinton, Marion, Washington	44 min
Jun 16, 2:49 PM CDT	Severe Thunderstorm Warning	ILX	Jasper, Richland	41 min
Jun 16, 3:16 PM CDT	Severe Thunderstorm Warning	ILX	Crawford, Jasper, Lawrence, Richland	44 min
Jun 16, 3:39 PM CDT	Severe Thunderstorm Warning	LSX	Marion	26 min
Jun 16, 3:52 PM CDT	Severe Thunderstorm Warning	PAH	Wayne	38 min
Jun 16, 4:03 PM CDT	Severe Thunderstorm Warning	ILX	Clay	27 min
Jun 16, 4:04 PM CDT	Severe Thunderstorm Warning	PAH	Jackson	26 min
Jun 16, 4:07 PM CDT	Severe Thunderstorm Warning	PAH	Union	23 min
Jun 16, 4:27 PM CDT	Severe Thunderstorm Warning	ILX	Richland	48 min
Jun 16, 4:39 PM CDT	Severe Thunderstorm Warning	PAH	Edwards, Wayne	36 min
Jun 16, 5:02 PM CDT	Severe Thunderstorm Warning	PAH	Edwards, Wabash	43 min
Jun 16, 5:27 PM CDT	Severe Thunderstorm Warning	PAH	Jackson, Union	26 min
Jun 16, 5:55 PM CDT	Severe Thunderstorm Warning	PAH	Hamilton, White	35 min
Jun 16, 5:58 PM CDT	Severe Thunderstorm Warning	PAH	Alexander	32 min
Jun 16, 6:23 PM CDT	Severe Thunderstorm Warning	PAH	White	37 min
Jun 16, 6:42 PM CDT	Severe Thunderstorm Warning	PAH	Massac, Pulaski	18 min
Jun 19, 1:44 PM CDT	Severe Thunderstorm Warning	PAH	Alexander, Pulaski	31 min
Jun 19, 1:44 PM CDT	Severe Thunderstorm Warning	PAH	Gallatin, Hamilton, Saline, White	31 min
Jun 19, 2:58 PM CDT	Severe Thunderstorm Warning	PAH	Johnson, Massac, Pope	32 min
Jun 19, 3:25 PM CDT	Severe Thunderstorm Warning	PAH	Hardin, Pope	50 min
Jun 19, 9:24 PM CDT	Severe Thunderstorm Warning	PAH	Alexander	25 min
Jun 21, 9:39 AM CDT	Severe Thunderstorm Warning	LSX	Adams, Pike	66 min
Jun 21, 10:27 AM CDT	Severe Thunderstorm Warning	LSX	Adams, Brown, Calhoun, Pike	63 min
Jun 21, 10:39 AM CDT	Severe Thunderstorm Warning	LSX	Calhoun	51 min
Jun 21, 10:57 AM CDT	Severe Thunderstorm Warning	ILX	Morgan, Scott	48 min
Jun 21, 11:00 AM CDT	Severe Thunderstorm Warning	LSX	Greene, Macoupin	60 min
Jun 21, 11:02 AM CDT	Severe Thunderstorm Warning	LSX	Calhoun, Greene, Jersey	58 min
Jun 21, 11:42 AM CDT	Severe Thunderstorm Warning	ILX	Morgan, Sangamon	48 min
Jun 21, 11:45 AM CDT	Severe Thunderstorm Warning	LSX	Jersey, Macoupin, Montgomery	60 min
Jun 21, 11:54 AM CDT	Severe Thunderstorm Warning	LSX	Bond, Jersey, Madison, Monroe, Saint Clair	66 min
Jun 21, 12:27 PM CDT	Severe Thunderstorm Warning	ILX	Christian, Sangamon, Shelby	63 min
Jun 21, 12:29 PM CDT	Severe Thunderstorm Warning	LSX	Montgomery	42 min
Jun 21, 1:53 PM CDT	Severe Thunderstorm Warning	ILX	Clay, Jasper, Richland	52 min
Jun 21, 2:21 PM CDT	Severe Thunderstorm Warning	PAH	Edwards, Franklin, Hamilton, Jefferson, Perry, Wayne and 1 more	39 min
Jun 21, 2:43 PM CDT	Severe Thunderstorm Warning	ILX	Lawrence, Richland	47 min
Jun 21, 2:59 PM CDT	Severe Thunderstorm Warning	PAH	Edwards, Franklin, Gallatin, Hamilton, Saline, Wabash and 2 more	46 min
Jun 21, 3:14 PM CDT	Severe Thunderstorm Warning	PAH	Jackson, Union, Williamson	46 min
Jun 21, 3:38 PM CDT	Severe Thunderstorm Warning	PAH	Jackson	37 min
Jun 21, 3:57 PM CDT	Severe Thunderstorm Warning	PAH	Johnson, Union, Williamson	33 min
Jun 21, 4:20 PM CDT	Severe Thunderstorm Warning	PAH	Jackson, Perry	40 min
Jun 21, 4:27 PM CDT	Severe Thunderstorm Warning	PAH	Alexander, Jackson, Union	48 min
Jun 21, 4:35 PM CDT	Severe Thunderstorm Warning	PAH	Hardin	25 min
Jun 21, 4:43 PM CDT	Severe Thunderstorm Warning	PAH	Johnson, Massac, Pope, Pulaski, Williamson	47 min
Jun 21, 5:04 PM CDT	Severe Thunderstorm Warning	PAH	Gallatin, Hardin, Massac, Pope, Saline	41 min
Jun 21, 5:40 PM CDT	Severe Thunderstorm Warning	PAH	Gallatin, Hardin	65 min
Jun 23, 3:31 PM CDT	Severe Thunderstorm Warning	PAH	Alexander, Johnson, Pulaski, Union	59 min
Jun 23, 4:37 PM CDT	Severe Thunderstorm Warning	PAH	Hardin, Johnson, Massac, Pope, Pulaski	53 min
Jun 23, 5:14 PM CDT	Severe Thunderstorm Warning	PAH	Hardin	61 min
Jun 24, 3:10 PM CDT	Severe Thunderstorm Warning	DVN	Rock Island, Whiteside	65 min
Jun 25, 4:37 PM CDT	Severe Thunderstorm Warning	LOT	Cook	23 min
Jun 25, 6:51 PM CDT	Severe Thunderstorm Warning	DVN	Hancock	54 min
Jun 25, 7:16 PM CDT	Severe Thunderstorm Warning	DVN	Hancock, Henderson	59 min
Jun 25, 7:22 PM CDT	Severe Thunderstorm Warning	DVN	McDonough	38 min
Jun 25, 7:56 PM CDT	Severe Thunderstorm Warning	DVN	Hancock, McDonough	64 min
Jun 25, 8:04 PM CDT	Severe Thunderstorm Warning	DVN	Hancock	41 min
Jun 25, 8:16 PM CDT	Severe Thunderstorm Warning	DVN	Hancock	14 min
Jun 25, 8:20 PM CDT	Severe Thunderstorm Warning	ILX	Fulton, Schuyler	55 min
Jun 25, 9:09 PM CDT	Severe Thunderstorm Warning	ILX	Fulton, Peoria, Tazewell	51 min
Jun 25, 9:42 PM CDT	Severe Thunderstorm Warning	ILX	Peoria, Tazewell, Woodford	48 min
Jun 26, 2:10 PM CDT	Severe Thunderstorm Warning	LSX	Monroe, Randolph	50 min
Jun 26, 2:19 PM CDT	Severe Thunderstorm Warning	LSX	Calhoun, Greene, Pike	41 min
Jun 26, 2:53 PM CDT	Severe Thunderstorm Warning	LSX	Monroe, Randolph, Saint Clair	52 min
Jun 26, 3:17 PM CDT	Severe Thunderstorm Warning	LSX	Madison, Saint Clair	43 min
Jun 26, 3:58 PM CDT	Severe Thunderstorm Warning	LSX	Madison, Saint Clair	47 min
Jun 26, 5:10 PM CDT	Severe Thunderstorm Warning	PAH	Jackson, Perry	35 min
Jun 26, 5:31 PM CDT	Severe Thunderstorm Warning	ILX	Clay	29 min
Jun 26, 5:39 PM CDT	Severe Thunderstorm Warning	ILX	Richland	36 min
Jun 26, 5:58 PM CDT	Severe Thunderstorm Warning	ILX	Knox, Stark	47 min
Jun 26, 6:02 PM CDT	Severe Thunderstorm Warning	ILX	Clay	23 min
Jun 26, 6:08 PM CDT	Severe Thunderstorm Warning	ILX	Crawford, Jasper, Lawrence, Richland	18 min
Jun 26, 6:16 PM CDT	Severe Thunderstorm Warning	PAH	Edwards, Wayne	44 min
Jun 26, 6:17 PM CDT	Severe Thunderstorm Warning	PAH	Alexander	16 min
Jun 26, 6:31 PM CDT	Severe Thunderstorm Warning	DVN	Henry	59 min
Jun 26, 6:42 PM CDT	Severe Thunderstorm Warning	ILX	Knox	48 min
Jun 26, 6:46 PM CDT	Severe Thunderstorm Warning	PAH	Massac, Pope	29 min
Jun 26, 7:03 PM CDT	Severe Thunderstorm Warning	ILX	Peoria, Stark	42 min
Jun 26, 7:30 PM CDT	Severe Thunderstorm Warning	LOT	Cook, DuPage	33 min
Jun 26, 7:31 PM CDT	Severe Thunderstorm Warning	LOT	Kankakee	29 min
Jun 26, 7:34 PM CDT	Severe Thunderstorm Warning	LOT	Cook, DuPage, Will	26 min
Jun 26, 7:48 PM CDT	Severe Thunderstorm Warning	ILX	Knox, Peoria, Stark	28 min
Jun 26, 8:35 PM CDT	Severe Thunderstorm Warning	LOT	Kendall, Will	24 min
Jun 26, 8:55 PM CDT	Severe Thunderstorm Warning	LOT	Cook	50 min
Jun 26, 9:11 PM CDT	Severe Thunderstorm Warning	LOT	Will	49 min
Jun 27, 6:07 PM CDT	Severe Thunderstorm Warning	LOT	DeKalb, Lee	27 min
Jun 28, 8:59 AM CDT	Severe Thunderstorm Warning	LOT	Kane, McHenry	46 min
Jun 28, 12:29 PM CDT	Severe Thunderstorm Warning	DVN	Hancock, Henderson	46 min
Jun 28, 1:05 PM CDT	Severe Thunderstorm Warning	DVN	Hancock, Henderson, McDonough, Warren	55 min
Jun 28, 2:05 PM CDT	Severe Thunderstorm Warning	LSX	Brown, Pike	40 min
Jun 28, 2:19 PM CDT	Severe Thunderstorm Warning	ILX	Cass, Fulton, Mason, Schuyler	29 min
Jun 28, 2:39 PM CDT	Severe Thunderstorm Warning	ILX	Morgan, Scott	51 min
Jun 28, 2:44 PM CDT	Severe Thunderstorm Warning	LSX	Pike	31 min
Jun 28, 3:13 PM CDT	Severe Thunderstorm Warning	ILX	Morgan, Sangamon	47 min
Jun 28, 3:51 PM CDT	Severe Thunderstorm Warning	LSX	Greene	39 min
Jun 28, 5:51 PM CDT	Severe Thunderstorm Warning	LOT	Cook, Will	39 min
Jun 28, 6:48 PM CDT	Severe Thunderstorm Warning	LOT	Cook	42 min
Jun 29, 5:03 PM CDT	Severe Thunderstorm Warning	LOT	Grundy, Livingston	42 min
Jun 29, 5:50 PM CDT	Severe Thunderstorm Warning	LOT	Ford, Iroquois, Livingston	40 min
Jun 29, 7:01 PM CDT	Severe Thunderstorm Warning	ILX	Vermilion	29 min
Jun 29, 7:25 PM CDT	Severe Thunderstorm Warning	ILX	Champaign	22 min
Jun 29, 7:30 PM CDT	Severe Thunderstorm Warning	ILX	Vermilion	45 min
Jun 30, 12:21 PM CDT	Severe Thunderstorm Warning	LOT	Boone, Lake, McHenry	54 min
Jun 30, 1:02 PM CDT	Severe Thunderstorm Warning	LOT	Cook, DuPage, Kane, Lake, McHenry	73 min
Jun 30, 1:13 PM CDT	Severe Thunderstorm Warning	LOT	Boone, DeKalb, Kane, Kendall, Lee, McHenry and 2 more	47 min
Jun 30, 1:46 PM CDT	Severe Thunderstorm Warning	LOT	Grundy, Kankakee, Will	44 min
Jun 30, 2:02 PM CDT	Severe Thunderstorm Warning	LOT	DeKalb, Grundy, Kane, Kendall, LaSalle, Lee and 1 more	43 min
Jun 30, 2:13 PM CDT	Severe Thunderstorm Warning	LOT	Cook, DuPage, Kankakee, Will	77 min
Jun 30, 2:28 PM CDT	Severe Thunderstorm Warning	LOT	Grundy, LaSalle, Livingston	51 min
Jun 30, 2:43 PM CDT	Severe Thunderstorm Warning	LOT	Ford, Livingston	62 min
Jun 30, 2:59 PM CDT	Severe Thunderstorm Warning	ILX	Champaign, Vermilion	46 min
Jun 30, 3:01 PM CDT	Severe Thunderstorm Warning	LOT	Ford, Iroquois, Kankakee	44 min
Jun 30, 3:06 PM CDT	Severe Thunderstorm Warning	ILX	Marshall, Stark	39 min
Jun 30, 3:16 PM CDT	Severe Thunderstorm Warning	ILX	Vermilion	44 min
Jun 30, 3:21 PM CDT	Severe Thunderstorm Warning	LOT	Ford, Iroquois	54 min
Jun 30, 3:27 PM CDT	Severe Thunderstorm Warning	ILX	Edgar, Vermilion	48 min
Jun 30, 3:43 PM CDT	Severe Thunderstorm Warning	LOT	Iroquois	32 min
Jun 30, 3:59 PM CDT	Severe Thunderstorm Warning	ILX	Edgar, Vermilion	22 min
Jun 30, 4:06 PM CDT	Severe Thunderstorm Warning	ILX	Champaign	39 min
Jun 30, 4:08 PM CDT	Severe Thunderstorm Warning	ILX	Champaign, Edgar, Vermilion	35 min
Jun 30, 4:46 PM CDT	Severe Thunderstorm Warning	ILX	Clark, Edgar	44 min
Jun 30, 4:49 PM CDT	Severe Thunderstorm Warning	ILX	Macon, Moultrie, Piatt	41 min
Jun 30, 4:54 PM CDT	Severe Thunderstorm Warning	DVN	Jo Daviess	51 min
Jun 30, 5:16 PM CDT	Severe Thunderstorm Warning	ILX	Coles	16 min
Jun 30, 5:31 PM CDT	Severe Thunderstorm Warning	DVN	Jo Daviess	44 min
Jun 30, 5:54 PM CDT	Severe Thunderstorm Warning	DVN	Carroll, Jo Daviess, Stephenson	66 min
Jun 30, 6:05 PM CDT	Severe Thunderstorm Warning	ILX	Crawford, Jasper	40 min
Jun 30, 6:16 PM CDT	Severe Thunderstorm Warning	DVN	Carroll, Whiteside	59 min
Jun 30, 6:17 PM CDT	Severe Thunderstorm Warning	ILX	Crawford, Lawrence	43 min
Jun 30, 6:20 PM CDT	Severe Thunderstorm Warning	ILX	Crawford, Jasper	27 min
Jun 30, 6:22 PM CDT	Severe Thunderstorm Warning	DVN	Bureau, Henry, Mercer, Rock Island, Whiteside	38 min
Jun 30, 6:56 PM CDT	Severe Thunderstorm Warning	DVN	Henderson, Henry, Mercer, Rock Island, Warren, Whiteside	49 min

By county

Every county with at least one alert. A county page lists each alert that covered it.

60 more counties

Nearby

Alerts in force now Tornadoes on record The radar archive 2018 2020

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.