Alert archive / Iowa / Severe Thunderstorm Warnings / 1987
Severe Thunderstorm Warnings in Iowa, August 1987
43 severe thunderstorm warnings in August 1987. 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 severe thunderstorm warnings reaches back to 1986.
Severe Thunderstorm Warnings by county
Each county as a circle sized by its count in August 1987. Tap one for its archive.
- Severe Thunderstorm Warnings
- 43
- Busiest day
- August 16, 198717 severe thunderstorm warnings
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 |
|---|---|---|---|---|
| Aug 3, 2:59 PM CDT | Severe Thunderstorm Warning | DVN | Clinton, Scott | 16 min |
| Aug 3, 3:17 PM CDT | Severe Thunderstorm Warning | DMX | Wayne | 43 min |
| Aug 3, 3:46 PM CDT | Severe Thunderstorm Warning | DMX | Wapello | 59 min |
| Aug 3, 4:14 PM CDT | Severe Thunderstorm Warning | DMX | Appanoose | 31 min |
| Aug 3, 4:14 PM CDT | Severe Thunderstorm Warning | DMX | Davis | 61 min |
| Aug 3, 4:43 PM CDT | Severe Thunderstorm Warning | DMX | Jefferson, Van Buren | 39 min |
| Aug 7, 8:52 PM CDT | Severe Thunderstorm Warning | OAX | Pottawattamie | 68 min |
| Aug 8, 4:36 PM CDT | Severe Thunderstorm Warning | DMX | Jefferson, Washington | 29 min |
| Aug 16, 12:19 AM CDT | Severe Thunderstorm Warning | FSD | Sioux | 56 min |
| Aug 16, 12:59 AM CDT | Severe Thunderstorm Warning | FSD | Osceola | 61 min |
| Aug 16, 1:05 AM CDT | Severe Thunderstorm Warning | DMX | Dickinson | 55 min |
| Aug 16, 3:22 PM CDT | Severe Thunderstorm Warning | DMX | Marshall | 28 min |
| Aug 16, 3:49 PM CDT | Severe Thunderstorm Warning | DMX | Marshall | 14 min |
| Aug 16, 3:49 PM CDT | Severe Thunderstorm Warning | DMX | Tama | 41 min |
| Aug 16, 4:26 PM CDT | Severe Thunderstorm Warning | DMX | Benton | 39 min |
| Aug 16, 4:35 PM CDT | Severe Thunderstorm Warning | DVN | Cedar | 25 min |
| Aug 16, 4:52 PM CDT | Severe Thunderstorm Warning | DVN | Jackson | 53 min |
| Aug 16, 5:01 PM CDT | Severe Thunderstorm Warning | DMX | Benton, Linn | 49 min |
| Aug 16, 5:11 PM CDT | Severe Thunderstorm Warning | DMX | Poweshiek | 42 min |
| Aug 16, 5:21 PM CDT | Severe Thunderstorm Warning | DMX | Washington | 36 min |
| Aug 16, 5:21 PM CDT | Severe Thunderstorm Warning | DMX | Jefferson | 28 min |
| Aug 16, 5:22 PM CDT | Severe Thunderstorm Warning | DVN | Cedar, Clinton | 38 min |
| Aug 16, 6:00 PM CDT | Severe Thunderstorm Warning | DVN | Jones | 50 min |
| Aug 16, 6:12 PM CDT | Severe Thunderstorm Warning | DVN | Clinton | 33 min |
| Aug 16, 6:48 PM CDT | Severe Thunderstorm Warning | DVN | Scott | 42 min |
| Aug 17, 5:40 PM CDT | Severe Thunderstorm Warning | DMX | Calhoun, Carroll, Greene | 25 min |
| Aug 17, 5:40 PM CDT | Severe Thunderstorm Warning | DMX | Webster | 25 min |
| Aug 17, 6:30 PM CDT | Severe Thunderstorm Warning | DMX | Story | 45 min |
| Aug 17, 6:30 PM CDT | Severe Thunderstorm Warning | DMX | Boone | 25 min |
| Aug 17, 6:57 PM CDT | Severe Thunderstorm Warning | DMX | Jasper, Polk | 63 min |
| Aug 17, 7:55 PM CDT | Severe Thunderstorm Warning | DMX | Jasper, Marion, Poweshiek | 22 min |
| Aug 17, 7:55 PM CDT | Severe Thunderstorm Warning | DMX | Mahaska | 45 min |
| Aug 19, 2:20 PM CDT | Severe Thunderstorm Warning | OAX | Montgomery, Page | 55 min |
| Aug 21, 12:06 AM CDT | Severe Thunderstorm Warning | DMX | Linn | 34 min |
| Aug 21, 12:32 AM CDT | Severe Thunderstorm Warning | DVN | Jones | 43 min |
| Aug 21, 12:39 AM CDT | Severe Thunderstorm Warning | DVN | Cedar | 21 min |
| Aug 21, 1:02 AM CDT | Severe Thunderstorm Warning | DVN | Cedar, Muscatine | 38 min |
| Aug 21, 1:49 AM CDT | Severe Thunderstorm Warning | DVN | Scott | 26 min |
| Aug 21, 2:18 AM CDT | Severe Thunderstorm Warning | DVN | Scott | 42 min |
| Aug 21, 3:31 AM CDT | Severe Thunderstorm Warning | DVN | Scott | 29 min |
| Aug 21, 4:01 AM CDT | Severe Thunderstorm Warning | DVN | Scott | 59 min |
| Aug 21, 4:57 AM CDT | Severe Thunderstorm Warning | DVN | Cedar, Clinton, Scott | 33 min |
| Aug 21, 5:28 AM CDT | Severe Thunderstorm Warning | DVN | Scott | 47 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Scott County8
- Cedar County5
- Clinton County4
- Jefferson County3
- Washington County2
- Marshall County2
- Benton County2
- Linn County2
- Poweshiek County2
- Jones County2
- Jasper County2
- Wayne County1
- Wapello County1
- Appanoose County1
- Davis County1
- Van Buren County1
- Pottawattamie County1
- Sioux County1
- Osceola County1
- Dickinson County1
- Tama County1
- Jackson County1
- Calhoun County1
- Carroll County1
- Greene County1
- Webster County1
- Story County1
- Boone County1
- Polk County1
- Marion County1
- Mahaska County1
- Montgomery County1
- Page County1
- Muscatine County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive19861988
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.