Alert archive / Illinois / Frost Advisories
Frost Advisories in Illinois, 2009
15 frost advisories in 2009. 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 frost advisories reaches back to 2005.
Frost Advisories by county
Each county as a circle sized by its count in 2009. Tap one for its archive.
- Frost Advisories
- 15
- Busiest month
- October8 frost advisories
- Busiest day
- October 9, 20094 frost advisories
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 |
|---|---|---|---|---|
| Apr 3, 12:10 PM CDT | Frost Advisory | PAH | Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 13 more | 21 hr |
| Apr 3, 2:14 PM CDT | Frost Advisory | LSX | Bond, Calhoun, Clinton, Fayette, Jersey, Madison and 5 more | 19 hr |
| Apr 3, 3:34 PM CDT | Frost Advisory | ILX | Clay, Crawford, Effingham, Jasper, Lawrence, Richland | 17 hr |
| May 16, 3:23 AM CDT | Frost Advisory | LOT | Boone, DeKalb, Kane, Lake, Lee, McHenry and 2 more | 28 hr |
| May 16, 3:53 AM CDT | Frost Advisory | DVN | Bureau, Carroll, Henry, Jo Daviess, Mercer, Putnam and 3 more | 28 hr |
| Sep 29, 3:17 AM CDT | Frost Advisory | DVN | Carroll, Jo Daviess, Stephenson, Whiteside | 24 hr |
| Sep 29, 3:26 PM CDT | Frost Advisory | LOT | Lee, Ogle, Winnebago | 17 hr |
| Oct 9, 4:02 AM CDT | Frost Advisory | DVN | Bureau, Hancock, Henderson, Henry, McDonough, Mercer and 4 more | 17 hr |
| Oct 9, 4:37 AM CDT | Frost Advisory | LOT | Boone, DeKalb, DuPage, Grundy, Kane, Kankakee and 6 more | 24 hr |
| Oct 9, 3:25 PM CDT | Frost Advisory | ILX | Cass, Fulton, Knox, Marshall, Mason, Morgan and 6 more | 18 hr |
| Oct 9, 4:07 PM CDT | Frost Advisory | LSX | Adams, Brown, Pike | 16 hr |
| Oct 10, 3:12 PM CDT | Frost Advisory | ILX | Christian, Clark, Coles, Cumberland, Douglas, Edgar and 2 more | 18 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 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Lee County3
- Ogle County3
- Winnebago County3
- Whiteside County3
- Alexander County2
- Edwards County2
- Franklin County2
- Gallatin County2
- Hamilton County2
- Hardin County2
- Jackson County2
- Jefferson County2
- Johnson County2
- Massac County2
- Perry County2
- Pope County2
- Pulaski County2
- Saline County2
- Union County2
- Wabash County2
- Wayne County2
- White County2
- Williamson County2
- Bond County2
- Calhoun County2
- Clinton County2
- Fayette County2
- Jersey County2
- Madison County2
- Marion County2
- Monroe County2
- Randolph County2
- Saint Clair County2
- Washington County2
- Clay County2
- Crawford County2
- Effingham County2
- Jasper County2
- Lawrence County2
- Richland County2
57 more counties
- Boone County2
- DeKalb County2
- Kane County2
- McHenry County2
- Bureau County2
- Carroll County2
- Henry County2
- Jo Daviess County2
- Mercer County2
- Putnam County2
- Rock Island County2
- Stephenson County2
- Cass County2
- Fulton County2
- Knox County2
- Marshall County2
- Mason County2
- Morgan County2
- Peoria County2
- Schuyler County2
- Scott County2
- Stark County2
- Tazewell County2
- Woodford County2
- Adams County2
- Brown County2
- Pike County2
- Christian County2
- Clark County2
- Coles County2
- Cumberland County2
- Douglas County2
- Edgar County2
- Moultrie County2
- Shelby County2
- Lake County1
- Hancock County1
- Henderson County1
- McDonough County1
- Warren County1
- DuPage County1
- Grundy County1
- Kankakee County1
- Kendall County1
- LaSalle County1
- Champaign County1
- DeWitt County1
- Logan County1
- McLean County1
- Macon County1
- Menard County1
- Piatt County1
- Sangamon County1
- Vermilion County1
- Greene County1
- Macoupin County1
- Montgomery County1
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20082010
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.