Alert archive / Illinois / Mesoscale Discussions
Mesoscale Discussions in Illinois, 2020
133 mesoscale discussions in 2020. 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 mesoscale discussions reaches back to 2003.
Mesoscale Discussions by county
Each county as a circle sized by its count in 2020. Tap one for its archive.
- Mesoscale Discussions
- 133
- Busiest month
- March28 mesoscale discussions
- Busiest day
- March 28, 202010 mesoscale discussions
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 | Counties | Lasted |
|---|---|---|---|---|
| Jan 10, 5:50 PM CST | Mesoscale Discussion | SPC | Jo Daviess, Stephenson | 6 hr |
| Jan 11, 3:10 PM CST | Mesoscale Discussion | SPC | Adams, Brown, Bureau, Calhoun, Cass, Cook and 35 more | 4 hr |
| Jan 17, 9:45 AM CST | Mesoscale Discussion | SPC | Adams, Bond, Brown, Calhoun, Cass, Christian and 22 more | 6 hr |
| Jan 17, 4:07 PM CST | Mesoscale Discussion | SPC | Adams, Bond, Brown, Calhoun, Cass, Champaign and 26 more | 5 hr |
| Mar 2, 3:54 PM CST | Mesoscale Discussion | SPC | Alexander, Johnson, Massac, Pope, Pulaski, Union | 2 hr |
| Mar 2, 6:39 PM CST | Mesoscale Discussion | SPC | Alexander, Franklin, Gallatin, Hardin, Jackson, Johnson and 6 more | 96 min |
| Mar 2, 9:00 PM CST | Mesoscale Discussion | SPC | Alexander, Gallatin, Hardin, Johnson, Massac, Pope and 4 more | 90 min |
| Mar 12, 9:21 AM CDT | Mesoscale Discussion | SPC | Madison, Monroe, Saint Clair | 114 min |
| Mar 12, 11:13 AM CDT | Mesoscale Discussion | SPC | Alexander, Gallatin, Hardin, Johnson, Massac, Pope and 4 more | 2 hr |
| Mar 12, 1:28 PM CDT | Mesoscale Discussion | SPC | Alexander, Franklin, Gallatin, Hamilton, Hardin, Jackson and 12 more | 2 hr |
| Mar 12, 2:31 PM CDT | Mesoscale Discussion | SPC | Alexander, Pulaski | 89 min |
| Mar 12, 3:20 PM CDT | Mesoscale Discussion | SPC | Hardin, Pope | 85 min |
| Mar 14, 11:01 AM CDT | Mesoscale Discussion | SPC | Champaign, DeWitt, Ford, Iroquois, Logan, McLean and 3 more | 119 min |
| Mar 19, 11:05 AM CDT | Mesoscale Discussion | SPC | Alexander, Massac, Pulaski, Union | 115 min |
| Mar 19, 3:40 PM CDT | Mesoscale Discussion | SPC | Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 13 more | 65 min |
| Mar 26, 7:58 AM CDT | Mesoscale Discussion | SPC | Bond, Calhoun, Greene, Jersey, Macoupin, Madison and 2 more | 92 min |
| Mar 26, 9:51 PM CDT | Mesoscale Discussion | SPC | Calhoun, Greene, Jersey, Macoupin, Madison, Monroe and 5 more | 84 min |
| Mar 27, 1:20 AM CDT | Mesoscale Discussion | SPC | Bond, Calhoun, Jersey, Madison, Monroe, Saint Clair | 85 min |
| Mar 27, 3:43 AM CDT | Mesoscale Discussion | SPC | Bond, Clay, Clinton, Crawford, Edwards, Effingham and 10 more | 92 min |
| Mar 27, 5:15 PM CDT | Mesoscale Discussion | SPC | Monroe, Randolph | 90 min |
| Mar 27, 8:02 PM CDT | Mesoscale Discussion | SPC | Edwards, Franklin, Hamilton, Jackson, Jefferson, Lawrence and 10 more | 88 min |
| Mar 27, 8:33 PM CDT | Mesoscale Discussion | SPC | Calhoun | 87 min |
| Mar 27, 11:46 PM CDT | Mesoscale Discussion | SPC | Bond, Calhoun, Christian, Fayette, Greene, Jersey and 8 more | 89 min |
| Mar 28, 1:34 AM CDT | Mesoscale Discussion | SPC | Carroll, Henry, Jo Daviess, Mercer, Rock Island, Whiteside | 56 min |
| Mar 28, 10:18 AM CDT | Mesoscale Discussion | SPC | Champaign, Christian, DeWitt, Douglas, Ford, Iroquois and 8 more | 2 hr |
| Mar 28, 1:17 PM CDT | Mesoscale Discussion | SPC | Alexander, Bond, Clark, Clay, Clinton, Crawford and 34 more | 88 min |
| Mar 28, 1:33 PM CDT | Mesoscale Discussion | SPC | Adams, Hancock, Henderson | 117 min |
| Mar 28, 4:59 PM CDT | Mesoscale Discussion | SPC | Gallatin, Hamilton, Hardin, Johnson, Massac, Pope and 2 more | 61 min |
| Mar 28, 5:21 PM CDT | Mesoscale Discussion | SPC | Brown, Fulton, Hancock, Henderson, Henry, Knox and 7 more | 84 min |
| Mar 28, 6:42 PM CDT | Mesoscale Discussion | SPC | Carroll, Jo Daviess, Stephenson | 93 min |
| Mar 28, 8:06 PM CDT | Mesoscale Discussion | SPC | Bureau, Carroll, Cass, DeKalb, DeWitt, Grundy and 17 more | 54 min |
| Mar 28, 10:23 PM CDT | Mesoscale Discussion | SPC | DeKalb, Ford, Grundy, Kendall, LaSalle, Livingston and 1 more | 97 min |
| Apr 6, 11:03 PM CDT | Mesoscale Discussion | SPC | Boone, Cook, DeKalb, DuPage, Grundy, Kane and 8 more | 2 hr |
| Apr 7, 3:06 PM CDT | Mesoscale Discussion | SPC | Boone, Cook, DeKalb, DuPage, Kane, Lake and 2 more | 114 min |
| Apr 7, 5:07 PM CDT | Mesoscale Discussion | SPC | Boone, Bureau, Carroll, DeKalb, DuPage, Grundy and 20 more | 83 min |
| Apr 7, 5:59 PM CDT | Mesoscale Discussion | SPC | Cook | 91 min |
| Apr 7, 7:22 PM CDT | Mesoscale Discussion | SPC | Boone, Bureau, Carroll, Cook, DeKalb, DuPage and 18 more | 83 min |
| Apr 7, 11:20 PM CDT | Mesoscale Discussion | SPC | Champaign, Christian, Coles, Douglas, Edgar, Macon and 3 more | 85 min |
| Apr 8, 1:46 PM CDT | Mesoscale Discussion | SPC | Adams, Bond, Brown, Calhoun, Cass, Champaign and 43 more | 119 min |
| Apr 8, 3:45 PM CDT | Mesoscale Discussion | SPC | Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 14 more | 2 hr |
| Apr 8, 7:46 PM CDT | Mesoscale Discussion | SPC | Alexander, Clay, Clinton, Crawford, Edwards, Franklin and 22 more | 119 min |
| Apr 16, 5:43 PM CDT | Mesoscale Discussion | SPC | Hancock, Henderson, McDonough, Warren | 4 hr |
| Apr 28, 3:33 PM CDT | Mesoscale Discussion | SPC | Adams, Bond, Brown, Bureau, Calhoun, Cass and 41 more | 87 min |
| Apr 28, 4:51 PM CDT | Mesoscale Discussion | SPC | Cook, DeKalb, DuPage, Grundy, Kane, Kankakee and 4 more | 114 min |
| Apr 28, 6:32 PM CDT | Mesoscale Discussion | SPC | Bond, Calhoun, Cass, Champaign, Christian, Clinton and 29 more | 118 min |
| Apr 28, 6:41 PM CDT | Mesoscale Discussion | SPC | Alexander, Clay, Edwards, Franklin, Hamilton, Jackson and 12 more | 64 min |
| Apr 28, 9:06 PM CDT | Mesoscale Discussion | SPC | Bond, Christian, Clinton, Coles, Cumberland, Douglas and 15 more | 84 min |
| Apr 28, 11:12 PM CDT | Mesoscale Discussion | SPC | Hardin, Johnson, Massac, Pope, Pulaski | 63 min |
| May 2, 8:27 PM CDT | Mesoscale Discussion | SPC | Adams, Brown, Cass, Champaign, Christian, Clark and 21 more | 2 hr |
| May 2, 11:10 PM CDT | Mesoscale Discussion | SPC | Clark, Coles, Crawford, Cumberland, Douglas, Edgar and 3 more | 95 min |
| May 3, 12:50 PM CDT | Mesoscale Discussion | SPC | Alexander, Massac, Pulaski | 85 min |
| May 14, 5:19 PM CDT | Mesoscale Discussion | SPC | Bureau, Fulton, Hancock, Henderson, Henry, Knox and 16 more | 116 min |
| May 14, 9:38 PM CDT | Mesoscale Discussion | SPC | Henry, Knox, Mercer, Rock Island, Stark, Warren | 52 min |
| May 14, 10:58 PM CDT | Mesoscale Discussion | SPC | Adams | 2 hr |
| May 15, 1:06 AM CDT | Mesoscale Discussion | SPC | Adams, Brown, Calhoun, Cass, Champaign, Christian and 31 more | 114 min |
| May 16, 3:38 PM CDT | Mesoscale Discussion | SPC | Bond, Christian, Clay, Clinton, Edwards, Effingham and 27 more | 3 hr |
| May 17, 1:44 PM CDT | Mesoscale Discussion | SPC | Bond, Champaign, Christian, Clark, Clay, Clinton and 45 more | 2 hr |
| May 17, 6:29 PM CDT | Mesoscale Discussion | SPC | Gallatin, Lawrence, Wabash | 91 min |
| May 18, 11:59 AM CDT | Mesoscale Discussion | SPC | Champaign, DeWitt, Douglas, Ford, Grundy, Iroquois and 14 more | 91 min |
| May 23, 11:29 AM CDT | Mesoscale Discussion | SPC | Bureau, Carroll, Cass, DeWitt, Fulton, Henderson and 24 more | 2 hr |
| May 23, 2:51 PM CDT | Mesoscale Discussion | SPC | Boone, Bureau, Carroll, Champaign, Cook, DeKalb and 32 more | 84 min |
| Jun 3, 9:52 AM CDT | Mesoscale Discussion | SPC | Adams, Brown, Cass, Fulton, Hancock, Henderson and 11 more | 113 min |
| Jun 3, 1:45 PM CDT | Mesoscale Discussion | SPC | Adams, Bond, Brown, Calhoun, Cass, Christian and 33 more | 2 hr |
| Jun 3, 6:37 PM CDT | Mesoscale Discussion | SPC | Adams, Brown, Cass, Fulton, Hancock, Henderson and 15 more | 113 min |
| Jun 4, 2:42 PM CDT | Mesoscale Discussion | SPC | Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 12 more | 2 hr |
| Jun 4, 5:14 PM CDT | Mesoscale Discussion | SPC | Rock Island | 91 min |
| Jun 4, 10:50 PM CDT | Mesoscale Discussion | SPC | Jo Daviess | 115 min |
| Jun 5, 7:59 AM CDT | Mesoscale Discussion | SPC | Adams, Brown, Hancock, Henderson, McDonough, Pike and 1 more | 91 min |
| Jun 5, 12:26 PM CDT | Mesoscale Discussion | SPC | Boone, Bureau, Carroll, Cook, DeKalb, DuPage and 13 more | 94 min |
| Jun 9, 3:54 PM CDT | Mesoscale Discussion | SPC | Clay, Crawford, Edwards, Franklin, Gallatin, Hamilton and 10 more | 66 min |
| Jun 9, 6:20 PM CDT | Mesoscale Discussion | SPC | Boone, Cook, DeKalb, DuPage, Ford, Grundy and 9 more | 115 min |
| Jun 22, 12:48 PM CDT | Mesoscale Discussion | SPC | Adams, Brown, Bureau, Cass, Champaign, Christian and 40 more | 2 hr |
| Jun 22, 3:38 PM CDT | Mesoscale Discussion | SPC | Brown, Calhoun, Cass, Champaign, Christian, DeWitt and 28 more | 97 min |
| Jun 26, 12:38 PM CDT | Mesoscale Discussion | SPC | Boone, Bureau, Carroll, DeKalb, DuPage, Henry and 10 more | 2 hr |
| Jun 26, 3:39 PM CDT | Mesoscale Discussion | SPC | Boone, Bureau, Carroll, DeKalb, DuPage, Grundy and 14 more | 2 hr |
| Jun 26, 5:40 PM CDT | Mesoscale Discussion | SPC | Henderson, Mercer | 65 min |
| Jun 26, 6:06 PM CDT | Mesoscale Discussion | SPC | Cook, DeKalb, DuPage, Kane, Lake | 84 min |
| Jun 26, 9:40 PM CDT | Mesoscale Discussion | SPC | Ford, Iroquois, Kankakee | 95 min |
| Jul 7, 1:23 PM CDT | Mesoscale Discussion | SPC | Jo Daviess | 2 hr |
| Jul 9, 10:24 AM CDT | Mesoscale Discussion | SPC | Mercer, Rock Island | 3 hr |
| Jul 9, 2:51 PM CDT | Mesoscale Discussion | SPC | Boone, Bureau, Carroll, Cook, DeKalb, DuPage and 22 more | 114 min |
| Jul 9, 5:39 PM CDT | Mesoscale Discussion | SPC | Boone, Bureau, Carroll, DeKalb, DuPage, Grundy and 19 more | 96 min |
| Jul 11, 9:36 AM CDT | Mesoscale Discussion | SPC | Cass, Fulton, Henderson, Henry, Knox, Logan and 11 more | 114 min |
| Jul 11, 7:17 PM CDT | Mesoscale Discussion | SPC | Bureau, Champaign, DeWitt, Douglas, Edgar, Ford and 27 more | 58 min |
| Jul 11, 10:42 PM CDT | Mesoscale Discussion | SPC | Clark, Coles, Crawford, Cumberland, Edgar, Vermilion | 93 min |
| Jul 15, 1:10 PM CDT | Mesoscale Discussion | SPC | Bond, Calhoun, Cass, Christian, Clinton, Fayette and 17 more | 2 hr |
| Jul 15, 2:13 PM CDT | Mesoscale Discussion | SPC | Brown, Fulton, Livingston, McDonough, McLean, Marshall and 5 more | 62 min |
| Jul 15, 5:35 PM CDT | Mesoscale Discussion | SPC | Bond, Champaign, Christian, Clark, Clay, Clinton and 35 more | 85 min |
| Jul 15, 8:22 PM CDT | Mesoscale Discussion | SPC | Jackson, Johnson, Massac, Pope, Pulaski, Saline and 2 more | 53 min |
| Jul 18, 11:00 AM CDT | Mesoscale Discussion | SPC | Boone, DeKalb, Jo Daviess, McHenry, Ogle, Stephenson and 1 more | 2 hr |
| Jul 19, 10:12 AM CDT | Mesoscale Discussion | SPC | Bureau, Cook, DeKalb, DuPage, Ford, Grundy and 14 more | 93 min |
| Jul 19, 12:19 PM CDT | Mesoscale Discussion | SPC | Ford, Iroquois | 86 min |
| Jul 19, 3:00 PM CDT | Mesoscale Discussion | SPC | Calhoun | 2 hr |
| Jul 20, 12:42 PM CDT | Mesoscale Discussion | SPC | Alexander, Franklin, Gallatin, Hardin, Jackson, Johnson and 6 more | 2 hr |
| Jul 21, 11:19 AM CDT | Mesoscale Discussion | SPC | Champaign, Clark, Coles, Cumberland, DeWitt, Douglas and 12 more | 86 min |
| Jul 21, 1:43 PM CDT | Mesoscale Discussion | SPC | Bond, Calhoun, Cass, Christian, Clinton, Coles and 17 more | 92 min |
| Jul 21, 5:04 PM CDT | Mesoscale Discussion | SPC | Bond, Champaign, Christian, Clark, Clay, Clinton and 24 more | 56 min |
| Jul 22, 11:54 AM CDT | Mesoscale Discussion | SPC | Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 15 more | 2 hr |
| Jul 26, 5:33 PM CDT | Mesoscale Discussion | SPC | Boone, Carroll, DeKalb, Henry, Jo Daviess, Lee and 7 more | 87 min |
| Jul 27, 12:14 PM CDT | Mesoscale Discussion | SPC | Bond, Champaign, Clark, Clay, Clinton, Coles and 25 more | 91 min |
| Aug 9, 1:30 PM CDT | Mesoscale Discussion | SPC | Boone, Carroll, Jo Daviess, Ogle, Stephenson, Winnebago | 2 hr |
| Aug 10, 10:42 AM CDT | Mesoscale Discussion | SPC | Boone, Bureau, Carroll, Champaign, Cook, DeKalb and 36 more | 93 min |
| Aug 10, 12:14 PM CDT | Mesoscale Discussion | SPC | Rock Island | 91 min |
| Aug 10, 1:36 PM CDT | Mesoscale Discussion | SPC | Boone, Bureau, Carroll, Cook, DeKalb, DuPage and 20 more | 114 min |
| Aug 10, 2:38 PM CDT | Mesoscale Discussion | SPC | Adams, Alexander, Bond, Brown, Calhoun, Cass and 42 more | 2 hr |
| Aug 10, 3:36 PM CDT | Mesoscale Discussion | SPC | Boone, Cook, DeKalb, DuPage, Ford, Grundy and 12 more | 84 min |
| Aug 10, 5:17 PM CDT | Mesoscale Discussion | SPC | Bond, Christian, Clark, Clay, Clinton, Coles and 29 more | 118 min |
| Aug 10, 7:29 PM CDT | Mesoscale Discussion | SPC | Alexander, Clay, Clinton, Crawford, Edwards, Effingham and 24 more | 91 min |
| Aug 15, 2:00 PM CDT | Mesoscale Discussion | SPC | Monroe, Randolph | 2 hr |
| Aug 15, 4:40 PM CDT | Mesoscale Discussion | SPC | Bond, Calhoun, Cass, Champaign, Christian, Coles and 37 more | 95 min |
| Aug 24, 10:55 PM CDT | Mesoscale Discussion | SPC | Boone, McHenry | 2 hr |
| Aug 28, 12:32 PM CDT | Mesoscale Discussion | SPC | Iroquois, Kankakee | 88 min |
| Aug 28, 2:56 PM CDT | Mesoscale Discussion | SPC | Carroll, Henderson, Jo Daviess, Mercer, Rock Island, Stephenson and 1 more | 64 min |
| Aug 28, 5:29 PM CDT | Mesoscale Discussion | SPC | Boone, Bureau, Carroll, DeKalb, Henderson, Henry and 12 more | 91 min |
| Aug 31, 12:43 PM CDT | Mesoscale Discussion | SPC | Alexander, Jackson, Johnson, Massac, Pope, Pulaski and 2 more | 92 min |
| Sep 6, 2:32 AM CDT | Mesoscale Discussion | SPC | Carroll, Henderson, Henry, Jo Daviess, Knox, Lee and 4 more | 88 min |
| Sep 6, 5:30 AM CDT | Mesoscale Discussion | SPC | Bureau, Carroll, Henry, Jo Daviess, Knox, Mercer and 5 more | 90 min |
| Sep 6, 9:32 PM CDT | Mesoscale Discussion | SPC | Boone, Bureau, Carroll, Cook, DeKalb, DuPage and 13 more | 118 min |
| Sep 7, 3:59 PM CDT | Mesoscale Discussion | SPC | Coles, Douglas, Edgar, Moultrie | 2 hr |
| Sep 7, 7:14 PM CDT | Mesoscale Discussion | SPC | Fulton, Hancock, Henderson, McDonough, Warren | 2 hr |
| Sep 8, 3:01 PM CDT | Mesoscale Discussion | SPC | Calhoun, Christian, Greene, Jersey, Macoupin, Madison and 3 more | 119 min |
| Oct 22, 4:53 PM CDT | Mesoscale Discussion | SPC | Carroll, Jo Daviess, Stephenson, Winnebago | 2 hr |
| Oct 23, 1:30 PM CDT | Mesoscale Discussion | SPC | Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 11 more | 3 hr |
| Nov 10, 8:52 AM CST | Mesoscale Discussion | SPC | Adams, Brown, Cass, Fulton, Hancock, McDonough and 2 more | 113 min |
| Nov 10, 1:28 PM CST | Mesoscale Discussion | SPC | Boone, Cook, DeKalb, DuPage, Ford, Grundy and 12 more | 92 min |
| Nov 10, 1:48 PM CST | Mesoscale Discussion | SPC | Adams, Brown, Bureau, Calhoun, Carroll, Cass and 34 more | 87 min |
| Nov 10, 3:30 PM CST | Mesoscale Discussion | SPC | Boone, Lee, McHenry, Ogle, Winnebago | 2 hr |
| Nov 10, 5:01 PM CST | Mesoscale Discussion | SPC | Bond, Champaign, Christian, Clark, Clay, Clinton and 26 more | 119 min |
| Nov 10, 5:03 PM CST | Mesoscale Discussion | SPC | Cook, DuPage, Grundy, Iroquois, Kankakee, Lake and 2 more | 57 min |
| Nov 14, 10:32 PM CST | Mesoscale Discussion | SPC | Alexander, Pulaski | 118 min |
| Dec 29, 2:17 PM CST | Mesoscale Discussion | SPC | Boone, Bureau, Carroll, DeKalb, Henry, Jo Daviess and 7 more | 4 hr |
| Dec 29, 3:52 PM CST | Mesoscale Discussion | SPC | Cook, DuPage, Grundy, Kane, Kankakee, Kendall and 5 more | 4 hr |
| Dec 30, 1:15 AM CST | Mesoscale Discussion | SPC | Boone, Cook, DeKalb, DuPage, Kane, Kendall and 4 more | 6 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- DeKalb County30
- LaSalle County30
- Rock Island County29
- Grundy County28
- Kendall County27
- DuPage County26
- Logan County26
- McLean County26
- Sangamon County26
- Madison County26
- Henry County26
- Kane County25
- Lee County25
- Livingston County25
- Christian County25
- Mercer County25
- Jo Daviess County24
- DeWitt County24
- Jersey County24
- Macoupin County24
- Stark County24
- Macon County24
- Pulaski County24
- Carroll County24
- Whiteside County24
- Boone County24
- McHenry County24
- Stephenson County23
- Bureau County23
- Lake County23
- Menard County23
- Tazewell County23
- Will County23
- Bond County23
- Montgomery County23
- Ogle County23
- Cass County22
- Cook County22
- Kankakee County22
- Knox County22
62 more counties
- Mason County22
- Morgan County22
- Woodford County22
- Moultrie County22
- Shelby County22
- Piatt County22
- Calhoun County21
- Ford County21
- McDonough County21
- Marshall County21
- Fayette County21
- Champaign County21
- Douglas County21
- Alexander County21
- Massac County21
- Pope County21
- Saline County21
- Warren County21
- Winnebago County21
- Fulton County20
- Greene County20
- Peoria County20
- Clinton County20
- Saint Clair County20
- Johnson County20
- Union County20
- Williamson County20
- Iroquois County20
- Henderson County20
- Pike County19
- Putnam County19
- Scott County19
- Marion County19
- Washington County19
- Coles County19
- Franklin County19
- Hamilton County19
- Lawrence County19
- Brown County18
- Effingham County18
- Monroe County18
- Gallatin County18
- Jefferson County18
- Wayne County18
- Adams County17
- Hancock County17
- Schuyler County17
- Cumberland County17
- Hardin County17
- Randolph County17
- Edwards County17
- Jackson County16
- White County16
- Vermilion County16
- Wabash County16
- Clay County16
- Richland County16
- Perry County15
- Jasper County15
- Edgar County15
- Crawford County14
- Clark County13
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20192021
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.