Alert archive / Iowa / Tornado Watches in 2019
Tornado Watch 670
The Storm Prediction Center issued this tornado watch at Oct 1, 2019, 2:45 PM CDT for 4 states. It was in force for 7 hr.
The area
The outline as issued.
The facts
- Issued
- Oct 1, 2019, 2:45 PM CDT (19:45 UTC)
- Expired
- Oct 1, 2019, 10:00 PM CDT
- In force
- 7 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 2 in
- Strongest gust expected
- 60 kt
All 55 counties
Adair County, IA, Adams County, IA, Black Hawk County, IA, Boone County, IA, Bremer County, IA, Cass County, IA, Clarke County, IA, Dallas County, IA, Decatur County, IA, Fremont County, IA, Grundy County, IA, Guthrie County, IA, Jasper County, IA, Lucas County, IA, Madison County, IA, Mahaska County, IA, Marion County, IA, Marshall County, IA, Mills County, IA, Monroe County, IA, Montgomery County, IA, Page County, IA, Polk County, IA, Pottawattamie County, IA, Poweshiek County, IA, Ringgold County, IA, Story County, IA, Tama County, IA, Taylor County, IA, Union County, IA, Warren County, IA, Brown County, KS, Clay County, KS, Cloud County, KS, Dickinson County, KS, Geary County, KS, Jackson County, KS, Marshall County, KS, Nemaha County, KS, Ottawa County, KS, Pottawatomie County, KS, Republic County, KS, Riley County, KS, Washington County, KS, Atchison County, MO, Holt County, MO, Nodaway County, MO, Worth County, MO, Gage County, NE, Jefferson County, NE, Johnson County, NE, Nemaha County, NE, Otoe County, NE, Pawnee County, NE, Richardson County, NE
The radar
The Omaha radar (KOAX), 114 km from the middle of the area, began a volume at 19:47 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
- 40%
- One or more EF2 to EF5 tornadoes
- 20%
- Ten or more severe wind reports
- 60%
- One or more gusts of 65 knots or more
- 20%
- Ten or more severe hail reports
- 40%
- One or more hailstones of 2 inches or more
- 30%
- Six or more combined severe hail and wind reports
- 90%
Warnings issued inside it
25 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 1, 2:50 PM CDT | Tornado Warning | OAX | Fremont, Mills, Montgomery, Page | 40 min |
| Oct 1, 2:55 PM CDT | Tornado Warning | EAX | Atchison | 35 min |
| Oct 1, 3:02 PM CDT | Tornado Warning | OAX | Fremont | 43 min |
| Oct 1, 3:25 PM CDT | Tornado Warning | OAX | Montgomery | 18 min |
| Oct 1, 3:25 PM CDT | Tornado Warning | TOP | Washington | 20 min |
| Oct 1, 3:29 PM CDT | Tornado Warning | OAX | Page | 32 min |
| Oct 1, 3:53 PM CDT | Severe Thunderstorm Warning | DMX | Adair, Adams, Madison, Union | 52 min |
| Oct 1, 4:20 PM CDT | Tornado Warning | DMX | Adair, Madison, Union | 40 min |
| Oct 1, 4:37 PM CDT | Severe Thunderstorm Warning | DMX | Adair, Adams, Cass, Union | 53 min |
| Oct 1, 4:40 PM CDT | Severe Thunderstorm Warning | OAX | Johnson, Nemaha, Otoe | 24 min |
| Oct 1, 4:47 PM CDT | Severe Thunderstorm Warning | TOP | Marshall, Nemaha | 13 min |
| Oct 1, 4:54 PM CDT | Tornado Warning | OAX | Pawnee | 20 min |
| Oct 1, 4:58 PM CDT | Tornado Warning | DMX | Dallas, Madison, Polk, Warren | 32 min |
| Oct 1, 4:58 PM CDT | Severe Thunderstorm Warning | TOP | Clay, Dickinson, Ottawa | 47 min |
| Oct 1, 5:10 PM CDT | Severe Thunderstorm Warning | DMX | Adair, Clarke, Madison, Union | 50 min |
| Oct 1, 5:18 PM CDT | Severe Thunderstorm Warning | DMX | Jasper, Polk, Warren | 42 min |
| Oct 1, 5:22 PM CDT | Severe Thunderstorm Warning | OAX | Nemaha, Richardson | 38 min |
| Oct 1, 5:25 PM CDT | Severe Thunderstorm Warning | DMX | Adair, Adams | 24 min |
| Oct 1, 5:31 PM CDT | Tornado Warning | TOP | Clay, Dickinson, Geary | 29 min |
| Oct 1, 5:44 PM CDT | Severe Thunderstorm Warning | DMX | Jasper, Marshall | 46 min |
| Oct 1, 5:53 PM CDT | Severe Thunderstorm Warning | DMX | Black Hawk, Bremer | 31 min |
| Oct 1, 5:53 PM CDT | Tornado Warning | DMX | Jasper | 38 min |
| Oct 1, 5:54 PM CDT | Tornado Warning | TOP | Geary, Riley | 36 min |
| Oct 1, 6:23 PM CDT | Tornado Warning | TOP | Pottawatomie | 22 min |
| Oct 1, 6:43 PM CDT | Severe Thunderstorm Warning | DMX | Poweshiek, Tama | 47 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 |
|---|---|---|---|---|
| Oct 1, 2:08 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Cass, Fremont, Madison, Montgomery and 3 more | 67 min |
| Oct 1, 3:24 PM CDT | Mesoscale Discussion | SPC | Adams, Montgomery, Page | 66 min |
| Oct 1, 5:03 PM CDT | Mesoscale Discussion | SPC | Allamakee, Benton, Bremer, Buchanan, Cedar, Chickasaw and 15 more | 117 min |
| Oct 1, 6:05 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Benton, Black Hawk, Clarke, Decatur and 13 more | 85 min |
| Oct 1, 6:05 PM CDT | Severe Thunderstorm Watch | SPC | Benton, Buchanan, Cedar, Clayton, Clinton, Delaware and 9 more | 6 hr |
| Oct 1, 5:29 PM CDT | Mesoscale Discussion | SPC | Atchison, Chase, Coffey, Doniphan, Douglas, Franklin and 12 more | 61 min |
Nearby
Tornado Watches in Iowa, 2019Tornado Watches in Kansas, 2019Tornado Watches in Nebraska, 2019Every tornado 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.