Alert archive / Iowa / Frost Advisories
Frost Advisories in Iowa, 2009
12 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
- 12
- Busiest month
- May5 frost advisories
- Busiest day
- May 16, 20095 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 |
|---|---|---|---|---|
| May 16, 3:41 AM CDT | Frost Advisory | DMX | Adair, Adams, Audubon, Black Hawk, Boone, Bremer and 29 more | 27 hr |
| May 16, 3:49 AM CDT | Frost Advisory | OAX | Harrison, Monona, Montgomery, Pottawattamie, Shelby | 24 hr |
| May 16, 3:51 AM CDT | Frost Advisory | FSD | Buena Vista, Cherokee, Clay, Dickinson, Ida, O'Brien and 4 more | 26 hr |
| May 16, 3:53 AM CDT | Frost Advisory | DVN | Benton, Buchanan, Cedar, Clinton, Delaware, Dubuque and 10 more | 28 hr |
| May 16, 4:04 AM CDT | Frost Advisory | ARX | Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more | 27 hr |
| Sep 28, 3:20 PM CDT | Frost Advisory | FSD | Cherokee, Lyon, O'Brien, Osceola, Plymouth, Sioux and 1 more | 18 hr |
| Sep 29, 3:17 AM CDT | Frost Advisory | DVN | Benton, Buchanan, Cedar, Clinton, Delaware, Dubuque and 5 more | 24 hr |
| Sep 29, 4:02 AM CDT | Frost Advisory | ARX | Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more | 28 hr |
| Sep 29, 3:38 PM CDT | Frost Advisory | DMX | Black Hawk, Bremer, Butler, Cerro Gordo, Franklin, Grundy and 9 more | 16 hr |
| Oct 3, 3:39 PM CDT | Frost Advisory | OAX | Fremont, Harrison, Mills, Monona, Montgomery, Page and 2 more | 16 hr |
| Oct 3, 9:54 PM CDT | Frost Advisory | DMX | Adair, Adams, Audubon, Boone, Calhoun, Carroll and 29 more | 10 hr |
| Oct 9, 4:02 AM CDT | Frost Advisory | DVN | Des Moines, Henry, Jefferson, Lee, Louisa, Muscatine and 2 more | 17 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Cerro Gordo County3
- Franklin County3
- Hancock County3
- Hardin County3
- Kossuth County3
- Winnebago County3
- Worth County3
- Wright County3
- Adair County2
- Adams County2
- Audubon County2
- Black Hawk County2
- Boone County2
- Bremer County2
- Butler County2
- Calhoun County2
- Carroll County2
- Cass County2
- Crawford County2
- Emmet County2
- Greene County2
- Grundy County2
- Guthrie County2
- Hamilton County2
- Humboldt County2
- Marshall County2
- Palo Alto County2
- Pocahontas County2
- Poweshiek County2
- Sac County2
- Story County2
- Tama County2
- Webster County2
- Harrison County2
- Monona County2
- Montgomery County2
- Pottawattamie County2
- Shelby County2
- Cherokee County2
- O'Brien County2
52 more counties
- Osceola County2
- Plymouth County2
- Sioux County2
- Woodbury County2
- Benton County2
- Buchanan County2
- Cedar County2
- Clinton County2
- Delaware County2
- Dubuque County2
- Iowa County2
- Jackson County2
- Johnson County2
- Jones County2
- Linn County2
- Louisa County2
- Muscatine County2
- Scott County2
- Allamakee County2
- Chickasaw County2
- Clayton County2
- Fayette County2
- Floyd County2
- Howard County2
- Mitchell County2
- Winneshiek County2
- Jasper County1
- Mahaska County1
- Buena Vista County1
- Clay County1
- Dickinson County1
- Ida County1
- Keokuk County1
- Washington County1
- Lyon County1
- Fremont County1
- Mills County1
- Page County1
- Clarke County1
- Dallas County1
- Decatur County1
- Madison County1
- Polk County1
- Ringgold County1
- Taylor County1
- Union County1
- Warren County1
- Des Moines County1
- Henry County1
- Jefferson County1
- Lee County1
- Van Buren 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. Warning verification from the Mesonet's Cow. Rebuilt daily.