Alert archive / Illinois / 2018
Weather alerts in Illinois, April 2018
144 weather alerts in April 2018, 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 April 2018. Tap one for its archive.
- Alerts
- 144
- Warnings
- 58
- Watches
- 13
- Advisories
- 47
- Busiest day
- April 3, 201843 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 |
|---|---|---|---|---|
| Apr 1, 1:38 PM CDT | Mesoscale Discussion | SPC | Adams, Brown, Calhoun, Cass, Fulton, Greene and 8 more | 4 hr |
| Apr 2, 2:11 AM CDT | Dense Fog Advisory | ILX | Cass, Champaign, DeWitt, Fulton, Logan, McLean and 12 more | 7 hr |
| Apr 2, 2:11 AM CDT | Dense Fog Advisory | LSX | Adams, Brown, Pike | 7 hr |
| Apr 2, 2:24 AM CDT | Dense Fog Advisory | DVN | Hancock, McDonough | 8 hr |
| Apr 2, 2:54 AM CDT | Gale Watch | LOT | 18 hr | |
| Apr 2, 9:28 AM CDT | River Flood Warning | IND | Clark, Crawford | 10 days |
| Apr 2, 1:19 PM CDT | Wind Advisory | PAH | Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 13 more | 30 hr |
| Apr 2, 3:10 PM CDT | Winter Weather Advisory | DVN | Carroll, Jo Daviess, Stephenson | 28 hr |
| Apr 2, 7:14 PM CDT | Special Weather Statement | PAH | Saline, Williamson | 31 min |
| Apr 2, 7:45 PM CDT | Special Weather Statement | PAH | Gallatin, Saline | 30 min |
| Apr 2, 7:46 PM CDT | Special Weather Statement | LSX | Clinton, Marion | 44 min |
| Apr 2, 8:55 PM CDT | Gale Warning | LOT | 42 hr | |
| Apr 2, 8:55 PM CDT | Small Craft Advisory | LOT | 28 hr | |
| Apr 2, 10:46 PM CDT | Mesoscale Discussion | SPC | Bond, Clay, Clinton, Edwards, Effingham, Fayette and 21 more | 119 min |
| Apr 2, 11:13 PM CDT | Severe Thunderstorm Warning | LSX | Monroe, Saint Clair | 32 min |
| Apr 2, 11:55 PM CDT | Special Weather Statement | LSX | Clinton | 50 min |
| Apr 3, 12:38 AM CDT | Special Weather Statement | LSX | Madison | 52 min |
| Apr 3, 8:23 AM CDT | River Flood Warning | LSX | Fayette | 6 days |
| Apr 3, 8:28 AM CDT | Flash Flood Warning | ILX | Clark, Coles, Cumberland, Edgar, Effingham, Shelby | 3 hr |
| Apr 3, 9:29 AM CDT | River Flood Warning | ILX | Crawford, Jasper | 5 days |
| Apr 3, 10:08 AM CDT | Flash Flood Warning | LSX | Fayette | 6 hr |
| Apr 3, 10:16 AM CDT | Special Weather Statement | LSX | Fayette | 14 min |
| Apr 3, 10:20 AM CDT | River Flood Warning | PAH | Massac, Pope | 14 days |
| Apr 3, 10:36 AM CDT | Special Weather Statement | ILX | Effingham | 24 min |
| Apr 3, 11:09 AM CDT | Special Weather Statement | ILX | Crawford, Jasper | 51 min |
| Apr 3, 11:27 AM CDT | Areal Flood Warning | ILX | Clark, Coles, Cumberland, Douglas, Edgar | 3 hr |
| Apr 3, 11:37 AM CDT | Special Weather Statement | PAH | Edwards, Wayne | 38 min |
| Apr 3, 12:22 PM CDT | Special Weather Statement | PAH | Wabash | 53 min |
| Apr 3, 12:57 PM CDT | Mesoscale Discussion | SPC | Alexander, Clay, Clinton, Edwards, Effingham, Fayette and 24 more | 2 hr |
| Apr 3, 1:33 PM CDT | Tornado Watch | SPC | Alexander, Bond, Clark, Clay, Clinton, Coles and 34 more | 7 hr |
| Apr 3, 3:21 PM CDT | Severe Thunderstorm Warning | LSX | Monroe, Randolph, Saint Clair | 39 min |
| Apr 3, 3:23 PM CDT | Areal Flood Warning | ILX | Coles, Douglas, Edgar | 12 hr |
| Apr 3, 3:26 PM CDT | Severe Thunderstorm Warning | LSX | Randolph | 49 min |
| Apr 3, 3:28 PM CDT | Special Weather Statement | PAH | Jackson, Jefferson, Perry | 62 min |
| Apr 3, 3:34 PM CDT | Mesoscale Discussion | SPC | Alexander, Bond, Clay, Clinton, Coles, Crawford and 32 more | 86 min |
| Apr 3, 4:14 PM CDT | Severe Thunderstorm Warning | ILX | Coles, Moultrie, Shelby | 31 min |
| Apr 3, 4:34 PM CDT | Severe Thunderstorm Warning | ILX | Coles, Douglas, Edgar | 26 min |
| Apr 3, 4:44 PM CDT | Severe Thunderstorm Warning | PAH | Jackson, Perry | 31 min |
| Apr 3, 4:47 PM CDT | Tornado Warning | ILX | Effingham, Jasper | 13 min |
| Apr 3, 5:06 PM CDT | Severe Thunderstorm Warning | PAH | Jefferson, Wayne | 39 min |
| Apr 3, 5:20 PM CDT | Severe Thunderstorm Warning | ILX | Clay, Crawford, Jasper, Richland | 25 min |
| Apr 3, 5:23 PM CDT | Tornado Warning | PAH | Alexander, Pulaski | 37 min |
| Apr 3, 5:25 PM CDT | Tornado Warning | PAH | Franklin, Williamson | 35 min |
| Apr 3, 5:49 PM CDT | Tornado Warning | PAH | Franklin, Hamilton, Saline, Williamson | 41 min |
| Apr 3, 5:57 PM CDT | Tornado Warning | PAH | Johnson | 33 min |
| Apr 3, 6:18 PM CDT | Tornado Warning | PAH | Gallatin, Hamilton, Saline, White | 27 min |
| Apr 3, 6:19 PM CDT | Severe Thunderstorm Warning | PAH | Massac, Pope, Pulaski | 41 min |
| Apr 3, 6:22 PM CDT | Tornado Warning | PAH | Johnson, Massac, Pope | 38 min |
| Apr 3, 6:29 PM CDT | Tornado Warning | PAH | Massac | 31 min |
| Apr 3, 6:38 PM CDT | Tornado Warning | PAH | Gallatin, White | 20 min |
| Apr 3, 6:49 PM CDT | Tornado Warning | PAH | Pope | 26 min |
| Apr 3, 7:40 PM CDT | Special Weather Statement | PAH | Hamilton | 35 min |
| Apr 3, 7:50 PM CDT | Severe Thunderstorm Warning | PAH | Gallatin, Hamilton, Saline, White | 25 min |
| Apr 4, 4:08 AM CDT | Freeze Warning | PAH | Alexander, Hardin, Johnson, Massac, Pope, Pulaski and 1 more | 28 hr |
| Apr 4, 10:24 AM CDT | Small Craft Advisory | LOT | 18 hr | |
| Apr 5, 3:28 AM CDT | Winter Storm Watch | PAH | Edwards, Franklin, Gallatin, Hamilton, Hardin, Jackson and 10 more | 22 hr |
| Apr 5, 3:32 AM CDT | Gale Watch | LOT | 12 hr | |
| Apr 5, 10:11 AM CDT | Special Weather Statement | DVN | Bureau, Henry, Putnam, Rock Island, Whiteside | 94 min |
| Apr 5, 11:47 AM CDT | Special Weather Statement | DVN | Bureau, Carroll, Jo Daviess, Putnam, Stephenson, Whiteside | 58 min |
| Apr 5, 12:53 PM CDT | Special Weather Statement | DVN | Carroll, Jo Daviess, Stephenson, Whiteside | 112 min |
| Apr 5, 3:04 PM CDT | Special Weather Statement | DVN | Jo Daviess, Stephenson | 86 min |
| Apr 5, 3:05 PM CDT | Gale Warning | LOT | 28 hr | |
| Apr 5, 3:05 PM CDT | Small Craft Advisory | LOT | 43 hr | |
| Apr 5, 3:59 PM CDT | Freeze Warning | PAH | Alexander, Hardin, Johnson, Massac, Pope, Pulaski and 1 more | 42 hr |
| Apr 6, 9:35 AM CDT | River Flood Warning | LSX | Clinton | 25 days |
| Apr 6, 3:13 PM CDT | Winter Weather Advisory | PAH | Alexander, Gallatin, Hardin, Johnson, Massac, Pope and 4 more | 19 hr |
| Apr 7, 2:20 AM CDT | Freeze Warning | PAH | Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 13 more | 31 hr |
| Apr 7, 4:05 AM CDT | Freeze Warning | LSX | Randolph | 29 hr |
| Apr 7, 3:08 PM CDT | Winter Weather Advisory | DVN | Henderson, Mercer, Warren | 43 hr |
| Apr 9, 10:03 AM CDT | Winter Weather Advisory | DVN | Henderson, Mercer, Warren | 94 min |
| Apr 9, 10:13 AM CDT | River Flood Warning | PAH | Pope | 6 days |
| Apr 10, 2:53 PM CDT | Frost Advisory | PAH | Edwards, Franklin, Gallatin, Hamilton, Hardin, Jefferson and 8 more | 17 hr |
| Apr 11, 3:01 PM CDT | Small Craft Advisory | LOT | 22 hr | |
| Apr 12, 3:04 AM CDT | Gale Watch | LOT | 19 hr | |
| Apr 12, 12:05 PM CDT | Wind Advisory | PAH | Alexander, Franklin, Gallatin, Hamilton, Hardin, Jackson and 8 more | 7 hr |
| Apr 12, 12:36 PM CDT | Red Flag Warning | PAH | Alexander, Gallatin, Hardin, Johnson, Massac, Pope and 5 more | 7 hr |
| Apr 12, 9:37 PM CDT | Gale Warning | LOT | 3 days | |
| Apr 12, 9:37 PM CDT | Small Craft Advisory | LOT | 27 hr | |
| Apr 12, 9:37 PM CDT | Small Craft Advisory | LOT | 36 hr | |
| Apr 13, 11:07 AM CDT | River Flood Advisory | IND | Wabash | 35 hr |
| Apr 13, 11:07 AM CDT | River Flood Advisory | IND | Wabash | 35 hr |
| Apr 13, 11:07 AM CDT | River Flood Advisory | IND | Crawford, Lawrence | 35 hr |
| Apr 13, 11:07 AM CDT | River Flood Advisory | IND | Crawford, Lawrence | 35 hr |
| Apr 13, 11:07 AM CDT | River Flood Advisory | IND | Lawrence, Wabash | 35 hr |
| Apr 13, 11:07 AM CDT | River Flood Advisory | IND | Edwards, Gallatin, Wabash, White | 35 hr |
| Apr 13, 12:28 PM CDT | Special Weather Statement | ILX | Mason | 17 min |
| Apr 13, 2:41 PM CDT | Wind Advisory | LOT | Boone, DeKalb, DuPage, Kane, Kendall, Lake and 4 more | 28 hr |
| Apr 13, 3:02 PM CDT | Lakeshore Flood Advisory | LOT | Lake | 12 hr |
| Apr 13, 5:27 PM CDT | Tornado Watch | SPC | Monroe, Randolph, Saint Clair | 8 hr |
| Apr 13, 5:51 PM CDT | Wind Advisory | DVN | Carroll, Jo Daviess, Rock Island, Stephenson, Whiteside | 25 hr |
| Apr 13, 8:42 PM CDT | Mesoscale Discussion | SPC | Monroe, Randolph | 63 min |
| Apr 13, 9:03 PM CDT | Small Craft Advisory | LOT | 4 days | |
| Apr 13, 9:24 PM CDT | Special Weather Statement | LSX | Calhoun | 51 min |
| Apr 13, 9:53 PM CDT | Severe Thunderstorm Warning | LSX | Madison, Monroe, Saint Clair | 67 min |
| Apr 13, 10:11 PM CDT | Mesoscale Discussion | SPC | Bond, Calhoun, Christian, Clinton, Effingham, Fayette and 7 more | 64 min |
| Apr 13, 10:12 PM CDT | Tornado Watch | SPC | Alexander, Pulaski | 10 hr |
| Apr 13, 10:32 PM CDT | Special Weather Statement | ILX | Morgan | 43 min |
| Apr 13, 10:32 PM CDT | Special Weather Statement | LSX | Randolph | 43 min |
| Apr 14, 3:16 AM CDT | Lakeshore Flood Warning | LOT | Lake | 31 hr |
| Apr 14, 3:51 AM CDT | Winter Weather Advisory | DVN | Jo Daviess, Stephenson | 39 hr |
| Apr 14, 11:34 AM CDT | River Flood Advisory | LOT | Will | 57 hr |
| Apr 14, 9:27 PM CDT | Winter Weather Advisory | LOT | Boone, Lake, McHenry, Winnebago | 22 hr |
| Apr 15, 3:38 AM CDT | Freeze Warning | ILX | Clark, Clay, Crawford, Cumberland, Effingham, Jasper and 2 more | 29 hr |
| Apr 15, 3:52 AM CDT | Freeze Warning | LSX | Bond, Calhoun, Clinton, Fayette, Jersey, Madison and 5 more | 29 hr |
| Apr 15, 4:10 AM CDT | Freeze Warning | PAH | Alexander, Edwards, Franklin, Hamilton, Jackson, Jefferson and 8 more | 30 hr |
| Apr 15, 10:06 AM CDT | River Flood Warning | IND | Clark, Crawford | 6 days |
| Apr 16, 3:11 AM CDT | Freeze Warning | ILX | Clark, Clay, Crawford, Cumberland, Effingham, Jasper and 2 more | 30 hr |
| Apr 16, 3:15 AM CDT | Winter Weather Advisory | LOT | Boone, Lake, McHenry | 6 hr |
| Apr 16, 3:25 AM CDT | Frost Advisory | LSX | Monroe, Randolph | 30 hr |
| Apr 16, 3:25 AM CDT | Freeze Warning | LSX | Bond, Calhoun, Clinton, Fayette, Jersey, Madison and 5 more | 30 hr |
| Apr 16, 3:47 AM CDT | Frost Advisory | PAH | Alexander, Gallatin, Hardin, Jackson, Johnson, Massac and 5 more | 29 hr |
| Apr 16, 3:47 AM CDT | Freeze Warning | PAH | Edwards, Franklin, Gallatin, Hamilton, Hardin, Jackson and 10 more | 29 hr |
| Apr 17, 4:07 AM CDT | Winter Weather Advisory | DVN | Carroll, Jo Daviess, Rock Island, Stephenson, Whiteside | 45 hr |
| Apr 17, 2:44 PM CDT | Winter Weather Advisory | LOT | Boone, Lake, McHenry, Ogle, Winnebago | 34 hr |
| Apr 17, 3:00 PM CDT | Small Craft Advisory | LOT | 55 hr | |
| Apr 17, 3:02 PM CDT | Winter Storm Warning | DVN | Jo Daviess | 34 hr |
| Apr 18, 10:24 AM CDT | Wind Advisory | LSX | Bond, Calhoun, Clinton, Fayette, Greene, Jersey and 7 more | 9 hr |
| Apr 18, 10:55 AM CDT | Wind Advisory | ILX | Clay, Crawford, Effingham, Jasper, Lawrence, Richland | 8 hr |
| Apr 18, 11:20 AM CDT | Wind Advisory | PAH | Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 13 more | 8 hr |
| Apr 19, 1:36 AM CDT | Frost Advisory | PAH | Alexander, Franklin, Gallatin, Hardin, Jackson, Johnson and 7 more | 31 hr |
| Apr 19, 1:36 AM CDT | Freeze Warning | PAH | Edwards, Hamilton, Jefferson, Wabash, Wayne, White | 31 hr |
| Apr 19, 2:46 AM CDT | Frost Advisory | LSX | Bond, Calhoun, Clinton, Jersey, Madison, Monroe and 3 more | 30 hr |
| Apr 19, 2:46 AM CDT | Freeze Warning | LSX | Fayette, Marion | 30 hr |
| Apr 19, 2:52 AM CDT | Freeze Warning | ILX | Clark, Clay, Crawford, Cumberland, Effingham, Jasper and 2 more | 29 hr |
| Apr 24, 3:24 AM CDT | Small Craft Advisory | LOT | 46 hr | |
| Apr 27, 3:16 AM CDT | Small Craft Advisory | LOT | 49 hr | |
| Apr 27, 9:24 AM CDT | Small Craft Advisory | LOT | 7 hr | |
| Apr 27, 2:50 PM CDT | Red Flag Warning | DVN | Bureau, Carroll, Henderson, Henry, Jo Daviess, Mercer and 5 more | 5 hr |
| Apr 28, 3:00 AM CDT | Frost Advisory | ILX | Christian, Clay, Crawford, DeWitt, Effingham, Jasper and 7 more | 28 hr |
| Apr 28, 3:00 AM CDT | Freeze Warning | ILX | Champaign, Clark, Coles, Cumberland, Douglas, Edgar and 3 more | 28 hr |
| Apr 28, 3:24 AM CDT | Frost Advisory | LSX | Bond, Fayette, Marion, Montgomery | 28 hr |
| Apr 28, 3:55 AM CDT | Frost Advisory | PAH | Edwards, Gallatin, Hamilton, Jefferson, Wabash, Wayne and 1 more | 27 hr |
| Apr 28, 10:59 AM CDT | River Flood Warning | DVN | Jo Daviess | 18 days |
| Apr 29, 1:49 PM CDT | River Flood Warning | DVN | Rock Island, Whiteside | 19 days |
| Apr 29, 1:49 PM CDT | River Flood Warning | DVN | Rock Island | 20 days |
| Apr 29, 8:55 PM CDT | Red Flag Warning | LOT | Boone, Cook, DeKalb, DuPage, Grundy, Kane and 10 more | 23 hr |
| Apr 30, 9:09 AM CDT | Small Craft Advisory | LOT | 12 hr | |
| Apr 30, 11:08 AM CDT | River Flood Watch | DVN | Jo Daviess | 8 days |
| Apr 30, 11:08 AM CDT | River Flood Watch | DVN | Mercer, Rock Island | 35 hr |
| Apr 30, 11:08 AM CDT | River Flood Watch | DVN | Mercer | 35 hr |
| Apr 30, 11:08 AM CDT | River Flood Watch | DVN | Henderson, Mercer | 35 hr |
| Apr 30, 11:08 AM CDT | River Flood Watch | DVN | Henderson | 35 hr |
| Apr 30, 11:08 AM CDT | River Flood Watch | DVN | Hancock, Henderson | 35 hr |
| Apr 30, 4:35 PM CDT | Red Flag Warning | LOT | Boone, Cook, DeKalb, DuPage, Ford, Grundy and 12 more | 26 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 | 11 |
| Tornado Warning | 10 |
| Tornado Watch | 3 |
| Mesoscale Discussion | 6 |
| Special Weather Statement | 20 |
| Flooding | |
| Areal Flood Warning | 2 |
| Flash Flood Warning | 2 |
| River Flood Warning | 10 |
| River Flood Watch | 6 |
| River Flood Advisory | 7 |
| Winter | |
| Winter Storm Warning | 1 |
| Winter Storm Watch | 1 |
| Winter Weather Advisory | 9 |
| Cold | |
| Freeze Warning | 14 |
| Frost Advisory | 8 |
| Wind and dust | |
| Wind Advisory | 7 |
| Fire | |
| Red Flag Warning | 4 |
| Fog and smoke | |
| Dense Fog Advisory | 3 |
| Coast and beach | |
| Lakeshore Flood Warning | 1 |
| Lakeshore Flood Advisory | 1 |
| Marine | |
| Gale Warning | 3 |
| Gale Watch | 3 |
| Small Craft Advisory | 12 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Pope County21
- Saline County21
- Gallatin County20
- Johnson County19
- White County19
- Williamson County19
- Hamilton County18
- Massac County18
- Wabash County18
- Alexander County16
- Hardin County16
- Pulaski County16
- Union County16
- Edwards County15
- Franklin County15
- Jackson County15
- Jefferson County15
- Wayne County15
- Crawford County14
- Monroe County14
- Randolph County14
- Perry County13
- Effingham County13
- Fayette County13
- Clinton County12
- Saint Clair County12
- Jasper County12
- Jo Daviess County11
- Marion County11
- Lawrence County11
- Clay County10
- Richland County10
- Clark County9
- Bond County9
- Stephenson County8
- Madison County8
- Washington County8
- Coles County8
- Cumberland County8
- Lake County8
59 more counties
- Calhoun County7
- Rock Island County7
- Whiteside County7
- Carroll County6
- Jersey County6
- Edgar County6
- Shelby County6
- Douglas County6
- Henderson County6
- Mercer County6
- Boone County6
- McHenry County6
- Winnebago County5
- Montgomery County4
- Moultrie County4
- Ogle County4
- Greene County3
- Hancock County3
- Mason County3
- Menard County3
- Morgan County3
- Macoupin County3
- Bureau County3
- Putnam County3
- Warren County3
- DeKalb County3
- DuPage County3
- Kane County3
- Kendall County3
- Lee County3
- Will County3
- Adams County2
- Brown County2
- Cass County2
- Fulton County2
- McDonough County2
- Pike County2
- Schuyler County2
- Scott County2
- Champaign County2
- DeWitt County2
- Logan County2
- Macon County2
- Piatt County2
- Sangamon County2
- Vermilion County2
- Henry County2
- Christian County2
- Cook County2
- Grundy County2
- Kankakee County2
- LaSalle County2
- Livingston County2
- McLean County1
- Peoria County1
- Tazewell County1
- Woodford County1
- Ford County1
- Iroquois County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20172019
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.