Alert archive / Iowa / Tornado Watches in 2022
Tornado Watch 294
The Storm Prediction Center issued this tornado watch at May 30, 2022, 5:23 PM CDT for 4 states. It was in force for 5 hr.
The area
The outline as issued.
The facts
- Issued
- May 30, 2022, 5:23 PM CDT (22:23 UTC)
- Expired
- May 30, 2022, 10:10 PM CDT
- In force
- 5 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 3 in
- Strongest gust expected
- 65 kt
All 95 counties
Adair County, IA, Adams County, IA, Audubon County, IA, Boone County, IA, Calhoun County, IA, Carroll County, IA, Cass County, IA, Cerro Gordo County, IA, Clarke County, IA, Dallas County, IA, Decatur County, IA, Emmet County, IA, Franklin County, IA, Fremont County, IA, Greene County, IA, Guthrie County, IA, Hamilton County, IA, Hancock County, IA, Hardin County, IA, Humboldt County, IA, Jasper County, IA, Kossuth County, IA, Lucas County, IA, Madison County, IA, Marion County, IA, Marshall County, IA, Montgomery County, IA, Page County, IA, Palo Alto County, IA, Pocahontas County, IA, Polk County, IA, Ringgold County, IA, Sac County, IA, Story County, IA, Taylor County, IA, Union County, IA, Warren County, IA, Wayne County, IA, Webster County, IA, Winnebago County, IA, Worth County, IA, Wright County, IA, Anderson County, KS, Atchison County, KS, Brown County, KS, Butler County, KS, Chase County, KS, Chautauqua County, KS, Clay County, KS, Coffey County, KS, Cowley County, KS, Dickinson County, KS, Doniphan County, KS, Douglas County, KS, Elk County, KS, Franklin County, KS, Geary County, KS, Greenwood County, KS, Harper County, KS, Harvey County, KS, Jackson County, KS, Jefferson County, KS, Johnson County, KS, Kingman County, KS, Leavenworth County, KS, Lyon County, KS, Marion County, KS, Marshall County, KS, McPherson County, KS, Miami County, KS, Morris County, KS, Nemaha County, KS, Osage County, KS, Pottawatomie County, KS, Reno County, KS, Riley County, KS, Sedgwick County, KS, Shawnee County, KS, Sumner County, KS, Wabaunsee County, KS, Wyandotte County, KS, Andrew County, MO, Atchison County, MO, Buchanan County, MO, Clinton County, MO, DeKalb County, MO, Gentry County, MO, Harrison County, MO, Holt County, MO, Nodaway County, MO, Platte County, MO, Worth County, MO, Nemaha County, NE, Pawnee County, NE, Richardson County, NE
The radar
The Omaha radar (KOAX), 128 km from the middle of the area, began a volume at 22:24 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
- 50%
- One or more gusts of 65 knots or more
- 30%
- Ten or more severe hail reports
- 70%
- One or more hailstones of 2 inches or more
- 50%
- Six or more combined severe hail and wind reports
- 95%
Warnings issued inside it
19 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 30, 5:42 PM CDT | Severe Thunderstorm Warning | ICT | Butler, Chase, Harvey, Marion, Sedgwick | 63 min |
| May 30, 5:45 PM CDT | Severe Thunderstorm Warning | TOP | Geary, Morris, Wabaunsee | 30 min |
| May 30, 5:46 PM CDT | Severe Thunderstorm Warning | ICT | Harper, Kingman, Sedgwick, Sumner | 44 min |
| May 30, 5:59 PM CDT | Severe Thunderstorm Warning | TOP | Jackson | 31 min |
| May 30, 6:06 PM CDT | Severe Thunderstorm Warning | EAX | Atchison | 24 min |
| May 30, 6:19 PM CDT | Severe Thunderstorm Warning | TOP | Brown, Jackson | 26 min |
| May 30, 6:26 PM CDT | Severe Thunderstorm Warning | EAX | Atchison | 22 min |
| May 30, 6:39 PM CDT | Severe Thunderstorm Warning | ICT | Butler, Chase, Marion | 66 min |
| May 30, 6:49 PM CDT | Severe Thunderstorm Warning | TOP | Lyon, Morris | 17 min |
| May 30, 7:03 PM CDT | Severe Thunderstorm Warning | ICT | Butler, Cowley, Sedgwick, Sumner | 57 min |
| May 30, 7:33 PM CDT | Severe Thunderstorm Warning | TOP | Lyon | 42 min |
| May 30, 7:37 PM CDT | Severe Thunderstorm Warning | ICT | Chase | 12 min |
| May 30, 8:03 PM CDT | Severe Thunderstorm Warning | TOP | Coffey, Osage | 28 min |
| May 30, 8:36 PM CDT | Severe Thunderstorm Warning | DMX | Butler, Cerro Gordo, Franklin, Hamilton, Hardin, Wright | 39 min |
| May 30, 8:49 PM CDT | Severe Thunderstorm Warning | OAX | Gage, Johnson, Pawnee | 41 min |
| May 30, 9:04 PM CDT | Severe Thunderstorm Warning | OAX | Fremont, Mills | 41 min |
| May 30, 9:22 PM CDT | Severe Thunderstorm Warning | OAX | Mills, Montgomery, Pottawattamie, Shelby | 23 min |
| May 30, 9:38 PM CDT | Severe Thunderstorm Warning | OAX | Fremont, Mills, Montgomery, Page, Pottawattamie | 52 min |
| May 30, 10:05 PM CDT | Severe Thunderstorm Warning | OAX | Fremont, Mills, Montgomery, Page, Pottawattamie | 40 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
Omaha, NE (KOAX), launched 12:00Z, 10.4 hours before the alert went out and 128 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
- 1569 J/kg
- Mixed-layer CIN
- -154 J/kg
- Mixed-layer LCL
- 897 m above ground
- 0-6 km bulk shear
- 61 kt
- 0-1 km storm-relative helicity
- 211 m²/s²
- 0-3 km storm-relative helicity
- 433 m²/s²
- Significant tornado parameter
- 0.7
- Supercell composite
- 3.2
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 29, 11:25 PM CDT | Mesoscale Discussion | SPC | Lyon, Osceola, Sioux | 95 min |
| May 30, 12:03 AM CDT | Severe Thunderstorm Watch | SPC | Buena Vista, Cherokee, Clay, Dickinson, Emmet, Ida and 9 more | 8 hr |
| May 30, 2:21 AM CDT | Mesoscale Discussion | SPC | Buena Vista, Cherokee, Clay, Dickinson, Emmet, Lyon and 5 more | 84 min |
| May 30, 5:40 AM CDT | Mesoscale Discussion | SPC | Audubon, Buena Vista, Calhoun, Carroll, Cass, Cherokee and 20 more | 95 min |
| May 30, 9:27 AM CDT | Mesoscale Discussion | SPC | Lyon, O'Brien, Osceola, Plymouth, Sioux | 93 min |
| May 30, 11:28 AM CDT | Mesoscale Discussion | SPC | Lyon, Osceola, Plymouth, Sioux | 92 min |
| May 30, 11:49 AM CDT | Tornado Watch | SPC | Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 6 more | 6 hr |
| May 30, 1:34 PM CDT | Mesoscale Discussion | SPC | Cherokee, Clay, Dickinson, Ida, Lyon, Monona and 5 more | 86 min |
| May 30, 1:55 PM CDT | Mesoscale Discussion | SPC | Adams, Audubon, Cass, Crawford, Fremont, Harrison and 6 more | 2 hr |
| May 30, 6:51 PM CDT | Mesoscale Discussion | SPC | Dickinson, Osceola | 54 min |
| May 30, 3:51 PM CDT | Mesoscale Discussion | SPC | Butler, Chase, Coffey, Cowley, Douglas, Elk and 18 more | 114 min |
| May 29, 7:16 PM CDT | Tornado Watch | SPC | Adams, Antelope, Blaine, Boone, Boyd, Brown and 45 more | 8 hr |
| May 29, 9:16 PM CDT | Mesoscale Discussion | SPC | Adams, Antelope, Blaine, Boone, Boyd, Brown and 43 more | 89 min |
| May 30, 2:03 PM CDT | Mesoscale Discussion | SPC | Blaine, Brown, Cherry, Keya Paha, Loup, Rock | 87 min |
Nearby
Tornado Watches in Iowa, 2022Tornado Watches in Kansas, 2022Tornado Watches in Missouri, 2022Every tornado watch in 2022
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.