Alert archive / Iowa / Winter Weather Advisories
Winter Weather Advisories in Iowa, 2018
132 winter weather advisories in 2018. 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 winter weather advisories reaches back to 2005.
Winter Weather Advisories by county
Each county as a circle sized by its count in 2018. Tap one for its archive.
- Winter Weather Advisories
- 132
- Busiest month
- February43 winter weather advisories
- Busiest day
- February 23, 20186 winter weather 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 |
|---|---|---|---|---|
| Jan 6, 2:45 AM CST | Winter Weather Advisory | DVN | Des Moines, Henry, Jefferson, Keokuk, Lee, Louisa and 2 more | 45 hr |
| Jan 6, 3:45 AM CST | Winter Weather Advisory | DMX | Appanoose, Davis, Decatur, Lucas, Mahaska, Monroe and 2 more | 38 hr |
| Jan 10, 3:07 AM CST | Winter Weather Advisory | FSD | Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more | 38 hr |
| Jan 10, 3:29 AM CST | Winter Weather Advisory | OAX | Fremont, Harrison, Mills, Monona, Montgomery, Page and 2 more | 34 hr |
| Jan 10, 2:07 PM CST | Winter Weather Advisory | ARX | Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more | 28 hr |
| Jan 10, 2:08 PM CST | Winter Weather Advisory | DMX | Adair, Adams, Appanoose, Audubon, Black Hawk, Boone and 45 more | 28 hr |
| Jan 11, 3:07 AM CST | Winter Weather Advisory | DVN | Benton, Buchanan, Cedar, Clinton, Delaware, Des Moines and 15 more | 17 hr |
| Jan 14, 3:51 AM CST | Winter Weather Advisory | ARX | Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more | 44 hr |
| Jan 14, 2:45 PM CST | Winter Weather Advisory | DVN | Benton, Buchanan, Cedar, Clinton, Delaware, Des Moines and 15 more | 21 hr |
| Jan 21, 3:58 AM CST | Winter Weather Advisory | OAX | Fremont, Harrison, Mills, Monona, Pottawattamie, Shelby | 41 hr |
| Jan 21, 2:35 PM CST | Winter Weather Advisory | DMX | Adair, Audubon, Boone, Carroll, Cass, Cerro Gordo and 12 more | 33 hr |
| Jan 21, 2:43 PM CST | Winter Weather Advisory | ARX | Howard, Mitchell, Winneshiek | 33 hr |
| Feb 4, 1:53 PM CST | Winter Weather Advisory | DVN | Benton, Buchanan, Cedar, Clinton, Delaware, Des Moines and 15 more | 32 hr |
| Feb 4, 2:32 PM CST | Winter Weather Advisory | DMX | Audubon, Black Hawk, Boone, Bremer, Butler, Calhoun and 34 more | 28 hr |
| Feb 4, 2:46 PM CST | Winter Weather Advisory | ARX | Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more | 28 hr |
| Feb 4, 3:12 PM CST | Winter Weather Advisory | FSD | Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more | 21 hr |
| Feb 4, 3:27 PM CST | Winter Weather Advisory | OAX | Harrison, Monona, Shelby | 24 hr |
| Feb 5, 12:02 PM CST | Winter Weather Advisory | FSD | Buena Vista, Cherokee, Clay, Dickinson, Ida, O'Brien | 118 min |
| Feb 6, 3:56 AM CST | Winter Weather Advisory | DVN | Des Moines, Henry, Lee, Van Buren | 23 hr |
| Feb 6, 2:09 PM CST | Winter Weather Advisory | DMX | Adams, Appanoose, Davis, Decatur, Ringgold, Taylor and 2 more | 10 hr |
| Feb 6, 2:11 PM CST | Winter Weather Advisory | OAX | Fremont, Mills, Montgomery, Page, Pottawattamie | 7 hr |
| Feb 7, 2:23 PM CST | Winter Weather Advisory | DMX | Audubon, Black Hawk, Boone, Bremer, Butler, Calhoun and 30 more | 40 hr |
| Feb 7, 2:51 PM CST | Winter Weather Advisory | ARX | Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more | 39 hr |
| Feb 7, 3:41 PM CST | Winter Weather Advisory | FSD | Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more | 35 hr |
| Feb 8, 2:59 AM CST | Winter Weather Advisory | DVN | Benton, Cedar, Clinton, Des Moines, Henry, Iowa and 9 more | 39 hr |
| Feb 8, 3:42 PM CST | Winter Weather Advisory | OAX | Monona | 11 hr |
| Feb 9, 3:05 PM CST | Winter Weather Advisory | DMX | Adair, Adams, Appanoose, Audubon, Cass, Clarke and 18 more | 16 hr |
| Feb 9, 3:09 PM CST | Winter Weather Advisory | DVN | Cedar, Clinton, Des Moines, Henry, Iowa, Jefferson and 10 more | 18 hr |
| Feb 9, 3:20 PM CST | Winter Weather Advisory | OAX | Fremont, Harrison, Mills, Montgomery, Page, Pottawattamie and 1 more | 15 hr |
| Feb 9, 6:26 PM CST | Winter Weather Advisory | DVN | Des Moines, Lee, Louisa | 3 hr |
| Feb 10, 4:06 AM CST | Winter Weather Advisory | OAX | Fremont, Page | 23 hr |
| Feb 10, 2:10 PM CST | Winter Weather Advisory | DMX | Appanoose, Clarke, Davis, Decatur, Lucas, Mahaska and 5 more | 16 hr |
| Feb 10, 3:14 PM CST | Winter Weather Advisory | DVN | Cedar, Clinton, Des Moines, Henry, Jefferson, Johnson and 7 more | 18 hr |
| Feb 18, 3:43 AM CST | Winter Weather Advisory | OAX | Harrison, Mills, Monona, Pottawattamie, Shelby | 31 hr |
| Feb 18, 3:45 AM CST | Winter Weather Advisory | DMX | Adair, Adams, Appanoose, Audubon, Black Hawk, Boone and 42 more | 56 hr |
| Feb 18, 3:48 AM CST | Winter Weather Advisory | ARX | Chickasaw, Floyd, Howard, Mitchell, Winneshiek | 58 hr |
| Feb 18, 3:48 AM CST | Winter Weather Advisory | FSD | Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more | 54 hr |
| Feb 18, 4:02 PM CST | Winter Weather Advisory | DMX | Cass | 44 hr |
| Feb 19, 1:32 AM CST | Winter Weather Advisory | ARX | Allamakee, Clayton, Fayette, Floyd, Mitchell | 36 hr |
| Feb 19, 3:16 AM CST | Winter Weather Advisory | DVN | Benton, Buchanan, Delaware | 33 hr |
| Feb 19, 3:47 AM CST | Winter Weather Advisory | OAX | Fremont, Harrison, Mills, Monona, Montgomery, Page and 2 more | 29 hr |
| Feb 20, 3:42 PM CST | Winter Weather Advisory | DVN | Des Moines, Lee | 11 hr |
| Feb 21, 2:59 PM CST | Winter Weather Advisory | FSD | Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more | 33 hr |
| Feb 21, 3:36 PM CST | Winter Weather Advisory | OAX | Fremont, Harrison, Mills, Monona, Montgomery, Page and 2 more | 33 hr |
| Feb 21, 3:42 PM CST | Winter Weather Advisory | DMX | Adair, Adams, Appanoose, Audubon, Black Hawk, Boone and 45 more | 35 hr |
| Feb 21, 3:47 PM CST | Winter Weather Advisory | DVN | Des Moines, Henry, Jefferson, Keokuk, Lee, Louisa and 2 more | 20 hr |
| Feb 22, 3:04 AM CST | Winter Weather Advisory | ARX | Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more | 30 hr |
| Feb 22, 3:23 AM CST | Winter Weather Advisory | DVN | Benton, Buchanan, Cedar, Clinton, Delaware, Dubuque and 5 more | 9 hr |
| Feb 22, 7:43 PM CST | Winter Weather Advisory | DVN | Buchanan, Delaware, Dubuque | 10 hr |
| Feb 23, 4:02 AM CST | Winter Weather Advisory | OAX | Fremont, Harrison, Mills, Monona, Montgomery, Page and 2 more | 37 hr |
| Feb 23, 2:38 PM CST | Winter Weather Advisory | ARX | Chickasaw, Floyd, Howard, Mitchell | 36 hr |
| Feb 23, 3:00 PM CST | Winter Weather Advisory | FSD | Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more | 27 hr |
| Feb 23, 3:13 PM CST | Winter Weather Advisory | DVN | Cedar, Des Moines, Henry, Iowa, Jefferson, Johnson and 7 more | 20 hr |
| Feb 23, 3:24 PM CST | Winter Weather Advisory | DMX | Adair, Adams, Appanoose, Audubon, Black Hawk, Boone and 45 more | 30 hr |
| Feb 24, 9:06 AM CST | Winter Weather Advisory | DVN | Lee, Scott, Van Buren | 114 min |
| Mar 4, 2:24 PM CST | Winter Weather Advisory | OAX | Fremont, Harrison, Mills, Monona, Montgomery, Page and 2 more | 52 hr |
| Mar 4, 2:25 PM CST | Winter Weather Advisory | FSD | Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more | 49 hr |
| Mar 4, 3:15 PM CST | Winter Weather Advisory | ARX | Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more | 42 hr |
| Mar 4, 3:32 PM CST | Winter Weather Advisory | DVN | Buchanan, Delaware, Dubuque, Jackson | 32 hr |
| Mar 4, 3:35 PM CST | Winter Weather Advisory | DMX | Audubon, Black Hawk, Boone, Bremer, Butler, Calhoun and 21 more | 50 hr |
| Mar 5, 6:50 AM CST | Winter Weather Advisory | DVN | Cedar, Clinton, Delaware, Dubuque, Jackson, Jones and 2 more | 17 hr |
| Mar 10, 8:54 AM CST | Winter Weather Advisory | FSD | Lyon, O'Brien, Osceola, Sioux | 3 hr |
| Mar 15, 3:48 AM CDT | Winter Weather Advisory | FSD | Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more | 45 hr |
| Mar 16, 3:10 AM CDT | Winter Weather Advisory | DVN | Benton, Buchanan, Cedar, Clinton, Delaware, Des Moines and 13 more | 32 hr |
| Mar 16, 4:10 AM CDT | Winter Weather Advisory | DMX | Black Hawk, Boone, Bremer, Butler, Calhoun, Carroll and 21 more | 30 hr |
| Mar 17, 11:14 AM CDT | Winter Weather Advisory | DVN | Des Moines, Louisa, Washington | 61 min |
| Mar 22, 3:49 PM CDT | Winter Weather Advisory | FSD | Clay, Dickinson, Osceola | 45 hr |
| Mar 23, 3:30 AM CDT | Winter Weather Advisory | DVN | Iowa, Johnson, Keokuk, Louisa, Muscatine, Washington | 40 hr |
| Mar 23, 3:50 AM CDT | Winter Weather Advisory | ARX | Allamakee | 24 hr |
| Mar 23, 4:00 AM CDT | Winter Weather Advisory | DMX | Boone, Calhoun, Greene, Hamilton, Hardin, Humboldt and 9 more | 39 hr |
| Mar 24, 3:58 AM CDT | Winter Weather Advisory | ARX | Clayton, Howard, Winneshiek | 12 hr |
| Mar 25, 3:28 PM CDT | Winter Weather Advisory | FSD | Buena Vista, Cherokee, Clay, Dickinson, Lyon, O'Brien and 2 more | 24 hr |
| Mar 25, 3:38 PM CDT | Winter Weather Advisory | DMX | Emmet, Humboldt, Kossuth, Palo Alto, Pocahontas | 18 hr |
| Mar 31, 4:04 AM CDT | Winter Weather Advisory | OAX | Fremont, Page | 34 hr |
| Mar 31, 3:34 PM CDT | Winter Weather Advisory | DMX | Decatur, Ringgold, Taylor | 24 hr |
| Apr 2, 11:09 AM CDT | Winter Weather Advisory | ARX | Allamakee, Chickasaw, Clayton, Fayette | 41 hr |
| Apr 2, 2:00 PM CDT | Winter Weather Advisory | DMX | Adair, Audubon, Black Hawk, Boone, Bremer, Butler and 22 more | 35 hr |
| Apr 2, 2:20 PM CDT | Winter Weather Advisory | FSD | Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more | 31 hr |
| Apr 2, 3:10 PM CDT | Winter Weather Advisory | DVN | Benton, Buchanan, Delaware, Dubuque, Jackson, Jones and 1 more | 28 hr |
| Apr 2, 3:39 PM CDT | Winter Weather Advisory | OAX | Fremont, Harrison, Mills, Monona, Pottawattamie, Shelby | 27 hr |
| Apr 5, 3:56 AM CDT | Winter Weather Advisory | OAX | Mills, Montgomery, Pottawattamie | 38 hr |
| Apr 7, 2:21 PM CDT | Winter Weather Advisory | ARX | Chickasaw, Fayette, Floyd, Howard, Mitchell, Winneshiek | 41 hr |
| Apr 7, 2:53 PM CDT | Winter Weather Advisory | FSD | Buena Vista, Cherokee, Clay, Dickinson, Lyon, O'Brien and 3 more | 34 hr |
| Apr 7, 3:05 PM CDT | Winter Weather Advisory | DMX | Adair, Adams, Appanoose, Audubon, Black Hawk, Boone and 45 more | 40 hr |
| Apr 7, 3:08 PM CDT | Winter Weather Advisory | DVN | Benton, Buchanan, Cedar, Delaware, Des Moines, Henry and 9 more | 43 hr |
| Apr 9, 10:03 AM CDT | Winter Weather Advisory | DVN | Des Moines, Henry, Iowa, Jefferson, Johnson, Keokuk and 2 more | 94 min |
| Apr 13, 3:19 PM CDT | Winter Weather Advisory | OAX | Harrison, Mills, Monona, Pottawattamie, Shelby | 33 hr |
| Apr 13, 3:54 PM CDT | Winter Weather Advisory | DMX | Adair, Audubon, Black Hawk, Boone, Bremer, Butler and 37 more | 48 hr |
| Apr 13, 4:04 PM CDT | Winter Weather Advisory | ARX | Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more | 51 hr |
| Apr 14, 3:51 AM CDT | Winter Weather Advisory | DVN | Benton, Buchanan, Cedar, Delaware, Dubuque, Iowa and 7 more | 39 hr |
| Apr 15, 3:27 AM CDT | Winter Weather Advisory | FSD | Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more | 13 hr |
| Apr 15, 3:56 AM CDT | Winter Weather Advisory | DMX | Crawford | 2 hr |
| Apr 15, 4:13 AM CDT | Winter Weather Advisory | ARX | Howard, Mitchell | 15 hr |
| Apr 17, 3:33 AM CDT | Winter Weather Advisory | FSD | Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more | 38 hr |
| Apr 17, 3:54 AM CDT | Winter Weather Advisory | DMX | Audubon, Black Hawk, Boone, Bremer, Butler, Calhoun and 25 more | 42 hr |
| Apr 17, 4:07 AM CDT | Winter Weather Advisory | DVN | Benton, Cedar, Clinton, Iowa, Jackson, Johnson and 4 more | 45 hr |
| Apr 17, 3:17 PM CDT | Winter Weather Advisory | OAX | Monona | 22 hr |
| Apr 18, 2:59 AM CDT | Winter Weather Advisory | FSD | Lyon, Sioux | 15 hr |
| Oct 14, 11:55 AM CDT | Winter Weather Advisory | OAX | Harrison, Pottawattamie, Shelby | 9 hr |
| Oct 14, 12:45 PM CDT | Winter Weather Advisory | DMX | Audubon, Carroll, Cass, Crawford | 6 hr |
| Nov 9, 7:07 AM CST | Winter Weather Advisory | OAX | Pottawattamie | 4 hr |
| Nov 16, 2:45 AM CST | Winter Weather Advisory | ARX | Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more | 27 hr |
| Nov 16, 3:26 AM CST | Winter Weather Advisory | FSD | Buena Vista, Cherokee, Clay, Dickinson, Lyon, O'Brien and 2 more | 25 hr |
| Nov 16, 3:49 AM CST | Winter Weather Advisory | DMX | Black Hawk, Bremer, Butler, Cerro Gordo, Emmet, Franklin and 17 more | 28 hr |
| Nov 16, 2:15 PM CST | Winter Weather Advisory | DVN | Benton, Buchanan, Cedar, Clinton, Delaware, Dubuque and 5 more | 18 hr |
| Nov 17, 3:12 AM CST | Winter Weather Advisory | OAX | Fremont, Mills, Montgomery, Page | 21 hr |
| Nov 17, 11:01 AM CST | Winter Weather Advisory | DMX | Adams, Appanoose, Clarke, Davis, Decatur, Lucas and 10 more | 16 hr |
| Nov 17, 7:47 PM CST | Winter Weather Advisory | DVN | Des Moines, Henry, Jefferson, Keokuk, Louisa, Washington | 7 hr |
| Nov 23, 9:49 PM CST | Winter Weather Advisory | OAX | Fremont, Harrison, Mills, Monona, Montgomery, Pottawattamie and 1 more | 38 hr |
| Nov 24, 3:40 AM CST | Winter Weather Advisory | DMX | Adair, Adams, Audubon, Boone, Cass, Dallas and 8 more | 36 hr |
| Nov 24, 3:52 AM CST | Winter Weather Advisory | DVN | Benton, Buchanan, Delaware, Dubuque | 38 hr |
| Nov 25, 11:42 AM CST | Winter Weather Advisory | OAX | Fremont, Montgomery | 6 hr |
| Nov 28, 4:05 AM CST | Winter Weather Advisory | FSD | Cherokee, Lyon, O'Brien, Osceola, Plymouth, Sioux | 17 hr |
| Nov 30, 2:40 PM CST | Winter Weather Advisory | ARX | Allamakee, Chickasaw, Floyd, Howard, Mitchell, Winneshiek | 45 hr |
| Nov 30, 2:46 PM CST | Winter Weather Advisory | FSD | Ida, Lyon, Sioux, Woodbury | 43 hr |
| Nov 30, 3:18 PM CST | Winter Weather Advisory | DMX | Adair, Adams, Audubon, Boone, Bremer, Butler and 20 more | 45 hr |
| Nov 30, 3:24 PM CST | Winter Weather Advisory | OAX | Fremont, Harrison, Mills, Monona, Montgomery, Page and 2 more | 51 hr |
| Dec 4, 4:16 AM CST | Winter Weather Advisory | OAX | Harrison, Mills, Pottawattamie | 6 hr |
| Dec 4, 7:19 AM CST | Winter Weather Advisory | DVN | Benton, Buchanan, Cedar, Clinton, Delaware, Des Moines and 11 more | 3 hr |
| Dec 11, 12:08 PM CST | Winter Weather Advisory | DVN | Benton, Buchanan, Cedar, Clinton, Delaware, Dubuque and 7 more | 21 hr |
| Dec 11, 2:28 PM CST | Winter Weather Advisory | ARX | Allamakee, Clayton, Fayette, Winneshiek | 22 hr |
| Dec 11, 2:36 PM CST | Winter Weather Advisory | DMX | Black Hawk, Bremer | 13 hr |
| Dec 26, 3:23 AM CST | Winter Weather Advisory | OAX | Harrison, Monona | 57 hr |
| Dec 26, 3:25 AM CST | Winter Weather Advisory | FSD | Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more | 57 hr |
| Dec 28, 12:55 AM CST | Winter Weather Advisory | DMX | Adair, Appanoose, Audubon, Black Hawk, Boone, Bremer and 41 more | 11 hr |
| Dec 28, 2:34 AM CST | Winter Weather Advisory | ARX | Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more | 9 hr |
| Dec 28, 2:50 AM CST | Winter Weather Advisory | DVN | Benton, Buchanan, Cedar, Clinton, Delaware, Dubuque and 10 more | 9 hr |
| Dec 28, 2:37 PM CST | Winter Weather Advisory | DVN | Benton, Buchanan, Cedar, Clinton, Delaware, Dubuque and 10 more | 7 hr |
| Dec 30, 2:48 PM CST | Winter Weather Advisory | ARX | Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more | 33 hr |
| Dec 30, 3:03 PM CST | Winter Weather Advisory | DVN | Benton, Buchanan, Cedar, Clinton, Delaware, Dubuque and 6 more | 21 hr |
| Dec 30, 3:33 PM CST | Winter Weather Advisory | FSD | Lyon, Osceola, Sioux | 29 hr |
| Dec 31, 3:26 AM CST | Winter Weather Advisory | DMX | Adair, Adams, Black Hawk, Boone, Bremer, Butler and 30 more | 20 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Lyon County20
- Sioux County20
- Johnson County20
- Louisa County19
- Washington County19
- Osceola County19
- Cedar County19
- Delaware County19
- Iowa County19
- Des Moines County18
- Keokuk County18
- O'Brien County18
- Boone County18
- Hamilton County18
- Hardin County18
- Story County18
- Webster County18
- Benton County18
- Buchanan County18
- Linn County18
- Cherokee County17
- Clay County17
- Dickinson County17
- Pottawattamie County17
- Howard County17
- Mitchell County17
- Audubon County17
- Bremer County17
- Crawford County17
- Franklin County17
- Greene County17
- Guthrie County17
- Jasper County17
- Marshall County17
- Poweshiek County17
- Wright County17
- Dubuque County17
- Jones County17
- Buena Vista County16
- Harrison County16
59 more counties
- Mills County16
- Winneshiek County16
- Black Hawk County16
- Butler County16
- Carroll County16
- Dallas County16
- Grundy County16
- Pocahontas County16
- Polk County16
- Clinton County16
- Jackson County16
- Scott County16
- Mahaska County15
- Fremont County15
- Monona County15
- Allamakee County15
- Chickasaw County15
- Floyd County15
- Calhoun County15
- Cerro Gordo County15
- Humboldt County15
- Tama County15
- Muscatine County15
- Henry County14
- Jefferson County14
- Ida County14
- Plymouth County14
- Shelby County14
- Clayton County14
- Fayette County14
- Cass County14
- Emmet County14
- Hancock County14
- Kossuth County14
- Madison County14
- Palo Alto County14
- Sac County14
- Lee County13
- Decatur County13
- Monroe County13
- Woodbury County13
- Adair County13
- Worth County13
- Lucas County12
- Montgomery County12
- Marion County12
- Ringgold County12
- Taylor County12
- Warren County12
- Winnebago County12
- Appanoose County11
- Davis County11
- Wapello County11
- Wayne County11
- Page County11
- Adams County11
- Clarke County11
- Union County11
- Van Buren County10
The busiest days
Days with the most alerts issued, by UTC date.
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. Warning verification from the Mesonet's Cow. Rebuilt daily.