Alert archive / Iowa / Tornado Watches in 2026
Tornado Watch 669
The Storm Prediction Center issued this tornado watch at Sep 14, 2026, 4:51 PM CDT for 24 counties in Iowa; Atchison County, Missouri; 16 counties in Nebraska. It was in force for 7 hr.
The area
The outline as issued.
The facts
- Issued
- Sep 14, 2026, 4:51 PM CDT (21:51 UTC)
- Expired
- Sep 15, 2026, 12:00 AM CDT
- In force
- 7 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 2 in
- Strongest gust expected
- 70 kt
All 41 counties
Adair County, IA, Adams County, IA, Audubon County, IA, Boone County, IA, Carroll County, IA, Cass County, IA, Clarke County, IA, Crawford County, IA, Dallas County, IA, Fremont County, IA, Greene County, IA, Guthrie County, IA, Harrison County, IA, Madison County, IA, Mills County, IA, Montgomery County, IA, Page County, IA, Polk County, IA, Pottawattamie County, IA, Ringgold County, IA, Shelby County, IA, Taylor County, IA, Union County, IA, Warren County, IA, Atchison County, MO, Butler County, NE, Cass County, NE, Dodge County, NE, Douglas County, NE, Gage County, NE, Jefferson County, NE, Johnson County, NE, Lancaster County, NE, Nemaha County, NE, Otoe County, NE, Pawnee County, NE, Saline County, NE, Sarpy County, NE, Saunders County, NE, Seward County, NE, Washington County, NE
The radar
The Omaha radar (KOAX), 47 km from the middle of the area, began a volume at 21:52 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
- 60%
- 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
- 95%
Warnings issued inside it
22 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 14, 5:11 PM CDT | Severe Thunderstorm Warning | OAX | Jefferson, Saline | 64 min |
| Sep 14, 5:51 PM CDT | Severe Thunderstorm Warning | OAX | Lancaster, Saunders | 39 min |
| Sep 14, 6:21 PM CDT | Severe Thunderstorm Warning | OAX | Douglas, Sarpy | 39 min |
| Sep 14, 6:25 PM CDT | Severe Thunderstorm Warning | OAX | Cass, Lancaster, Otoe | 50 min |
| Sep 14, 6:29 PM CDT | Severe Thunderstorm Warning | OAX | Cass, Sarpy, Saunders | 46 min |
| Sep 14, 6:30 PM CDT | Severe Thunderstorm Warning | OAX | Douglas, Saunders | 24 min |
| Sep 14, 6:40 PM CDT | Tornado Warning | OAX | Fremont | 29 min |
| Sep 14, 6:52 PM CDT | Severe Thunderstorm Warning | OAX | Mills, Montgomery, Pottawattamie | 38 min |
| Sep 14, 6:55 PM CDT | Tornado Warning | OAX | Fremont, Mills | 15 min |
| Sep 14, 6:57 PM CDT | Severe Thunderstorm Warning | OAX | Fremont, Mills | 48 min |
| Sep 14, 7:22 PM CDT | Severe Thunderstorm Warning | OAX | Mills, Montgomery, Pottawattamie, Shelby | 38 min |
| Sep 14, 7:32 PM CDT | Severe Thunderstorm Warning | OAX | Montgomery | 43 min |
| Sep 14, 7:40 PM CDT | Severe Thunderstorm Warning | DMX | Adair, Audubon, Cass, Guthrie | 50 min |
| Sep 14, 7:44 PM CDT | Severe Thunderstorm Warning | OAX | Fremont | 46 min |
| Sep 14, 8:17 PM CDT | Severe Thunderstorm Warning | OAX | Fremont, Page | 43 min |
| Sep 14, 8:24 PM CDT | Severe Thunderstorm Warning | DMX | Adair, Adams, Cass, Dallas, Guthrie, Madison and 1 more | 51 min |
| Sep 14, 8:40 PM CDT | Severe Thunderstorm Warning | OAX | Gage, Johnson, Pawnee | 50 min |
| Sep 14, 8:44 PM CDT | Severe Thunderstorm Warning | OAX | Montgomery, Page | 46 min |
| Sep 14, 9:26 PM CDT | Severe Thunderstorm Warning | OAX | Johnson, Nemaha, Otoe | 30 min |
| Sep 14, 9:36 PM CDT | Severe Thunderstorm Warning | OAX | Fremont | 39 min |
| Sep 14, 9:58 PM CDT | Severe Thunderstorm Warning | OAX | Fremont, Montgomery, Page | 49 min |
| Sep 14, 10:01 PM CDT | Severe Thunderstorm Warning | EAX | Atchison, Nodaway | 44 min |
Discussions around it
SPC mesoscale discussions over the same counties from four hours before the watch to its end.
The nearest sounding before it
Topeka, KS (KTOP), launched 12:00Z, 9.9 hours before the alert went out and 247 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 974 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 538 m²/s²
- 0-3 km storm-relative helicity
- 530 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.7
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 14, 3:23 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Audubon, Carroll, Cass, Crawford and 11 more | 2 hr |
| Sep 14, 6:18 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Audubon, Cass, Clarke, Dallas and 14 more | 57 min |
| Sep 14, 6:32 PM CDT | Mesoscale Discussion | SPC | Buena Vista, Calhoun, Cerro Gordo, Crawford, Franklin, Hancock and 10 more | 58 min |
| Sep 14, 3:09 PM CDT | Mesoscale Discussion | SPC | Franklin, Harlan, Webster | 3 hr |
| Sep 14, 3:47 PM CDT | Severe Thunderstorm Watch | SPC | Adams, Clay, Fillmore, Franklin, Hamilton, Harlan and 5 more | 4 hr |
| Sep 14, 6:53 PM CDT | Mesoscale Discussion | SPC | Adams, Clay, Fillmore, Franklin, Nuckolls, Thayer and 1 more | 67 min |
Nearby
Tornado Watches in Iowa, 2026Tornado Watches in Nebraska, 2026Tornado Watches in Missouri, 2026Every tornado watch in 2026
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.