Alert archive / Iowa / Severe Thunderstorm Watches in 2019
Severe Thunderstorm Watch 271
The Storm Prediction Center issued this severe thunderstorm watch at May 28, 2019, 6:09 AM CDT for 23 counties in Iowa. It was in force for 5 hr.
The area
The outline as issued.
The facts
- Issued
- May 28, 2019, 6:09 AM CDT (11:09 UTC)
- Expired
- May 28, 2019, 11:00 AM CDT
- In force
- 5 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 1 in
- Strongest gust expected
- 60 kt
All 23 counties
Adair County, IA, Adams County, IA, Appanoose County, IA, Cass County, IA, Clarke County, IA, Dallas County, IA, Davis County, IA, Decatur County, IA, Guthrie County, IA, Jasper County, IA, Lucas County, IA, Madison County, IA, Mahaska County, IA, Marion County, IA, Monroe County, IA, Polk County, IA, Poweshiek County, IA, Ringgold County, IA, Taylor County, IA, Union County, IA, Wapello County, IA, Warren County, IA, Wayne County, IA
The radar
The Des Moines radar (KDMX), 60 km from the middle of the area, began a volume at 11:08 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
What SPC expected
The probabilities SPC published with the watch, for the watch area over its life.
- Two or more tornadoes
- 10%
- One or more EF2 to EF5 tornadoes
- 10%
- Ten or more severe wind reports
- 30%
- One or more gusts of 65 knots or more
- 10%
- Ten or more severe hail reports
- 20%
- One or more hailstones of 2 inches or more
- 5%
- Six or more combined severe hail and wind reports
- 50%
Warnings issued inside it
8 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 28, 6:19 AM CDT | Severe Thunderstorm Warning | DMX | Adams, Ringgold, Taylor, Union | 41 min |
| May 28, 6:21 AM CDT | Severe Thunderstorm Warning | DMX | Adair, Dallas, Guthrie, Madison | 39 min |
| May 28, 6:57 AM CDT | Severe Thunderstorm Warning | DMX | Adams, Clarke, Decatur, Ringgold, Taylor, Union | 48 min |
| May 28, 6:59 AM CDT | Severe Thunderstorm Warning | DMX | Dallas, Madison, Polk, Warren | 20 min |
| May 28, 7:35 AM CDT | Severe Thunderstorm Warning | DMX | Clarke, Decatur, Lucas, Wayne | 40 min |
| May 28, 8:47 AM CDT | Flash Flood Warning | DMX | Adams, Taylor | 2 hr |
| May 28, 9:40 AM CDT | Severe Thunderstorm Warning | DMX | Clarke, Lucas | 50 min |
| May 28, 10:19 AM CDT | Severe Thunderstorm Warning | DMX | Appanoose, Lucas, Monroe | 26 min |
Discussions around it
SPC mesoscale discussions over the same counties from four hours before the watch to its end.
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 27, 10:55 PM CDT | Severe Thunderstorm Watch | SPC | Fremont, Harrison, Mills, Monona, Montgomery, Page and 2 more | 7 hr |
| May 27, 11:42 PM CDT | Mesoscale Discussion | SPC | Fremont, Mills, Montgomery, Page, Taylor | 63 min |
| May 28, 1:23 AM CDT | Mesoscale Discussion | SPC | Adams, Appanoose, Clarke, Davis, Decatur, Des Moines and 12 more | 2 hr |
| May 28, 4:58 AM CDT | Mesoscale Discussion | SPC | Adair, Adams, Audubon, Cass, Clarke, Dallas and 14 more | 2 hr |
| May 28, 7:44 AM CDT | Mesoscale Discussion | SPC | Adair, Adams, Appanoose, Cass, Clarke, Dallas and 17 more | 2 hr |
| May 28, 9:42 AM CDT | Mesoscale Discussion | SPC | Adair, Adams, Appanoose, Cass, Clarke, Davis and 16 more | 93 min |
| May 28, 11:31 AM CDT | Mesoscale Discussion | SPC | Davis, Des Moines, Lee, Van Buren | 89 min |
| May 28, 2:55 PM CDT | Mesoscale Discussion | SPC | Appanoose, Clarke, Davis, Decatur, Jasper, Jefferson and 15 more | 95 min |
| May 28, 3:13 PM CDT | Severe Thunderstorm Watch | SPC | Adams, Appanoose, Clarke, Davis, Decatur, Fremont and 15 more | 7 hr |
| May 28, 5:12 PM CDT | Mesoscale Discussion | SPC | Decatur, Wayne | 93 min |
| May 28, 5:22 PM CDT | Severe Thunderstorm Watch | SPC | Des Moines, Henry, Jefferson, Johnson, Lee, Louisa and 4 more | 5 hr |
| May 28, 12:01 PM CDT | Severe Thunderstorm Watch | SPC | Knox, Lewis, Marion, Monroe, Pike, Ralls and 1 more | 5 hr |
| May 28, 12:04 PM CDT | Mesoscale Discussion | SPC | Andrew, Buchanan, Caldwell, Carroll, Cass, Clay and 12 more | 86 min |
| May 28, 1:56 PM CDT | Tornado Watch | SPC | Adair, Buchanan, Caldwell, Carroll, Cass, Chariton and 16 more | 8 hr |
| May 28, 3:58 PM CDT | Mesoscale Discussion | SPC | Knox, Lewis, Marion, Monroe, Ralls, Shelby | 62 min |
Nearby
Severe Thunderstorm Watches in Iowa, 2019Every severe thunderstorm watch in 2019
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.