Alert archive / Kansas / Severe Thunderstorm Watches in 2018
Severe Thunderstorm Watch 338
The Storm Prediction Center issued this severe thunderstorm watch at Aug 16, 2018, 3:28 PM CDT for 48 counties in Kansas; 22 counties in Missouri; 12 counties in Oklahoma. It was in force for 8 hr.
The area
The outline as issued.
The facts
- Issued
- Aug 16, 2018, 3:28 PM CDT (20:28 UTC)
- Expired
- Aug 16, 2018, 11:00 PM CDT
- In force
- 8 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 2 in
- Strongest gust expected
- 60 kt
All 82 counties
Allen County, KS, Anderson County, KS, Atchison County, KS, Barton County, KS, Bourbon County, KS, Butler County, KS, Chase County, KS, Chautauqua County, KS, Cherokee County, KS, Clay County, KS, Coffey County, KS, Cowley County, KS, Crawford County, KS, Dickinson County, KS, Douglas County, KS, Elk County, KS, Ellsworth County, KS, Franklin County, KS, Geary County, KS, Greenwood County, KS, Harvey County, KS, Jackson County, KS, Jefferson County, KS, Johnson County, KS, Labette County, KS, Leavenworth County, KS, Linn County, KS, Lyon County, KS, Marion County, KS, McPherson County, KS, Miami County, KS, Montgomery County, KS, Morris County, KS, Neosho County, KS, Osage County, KS, Ottawa County, KS, Pottawatomie County, KS, Reno County, KS, Rice County, KS, Riley County, KS, Saline County, KS, Sedgwick County, KS, Shawnee County, KS, Sumner County, KS, Wabaunsee County, KS, Wilson County, KS, Woodson County, KS, Wyandotte County, KS, Barton County, MO, Bates County, MO, Buchanan County, MO, Caldwell County, MO, Carroll County, MO, Cass County, MO, Cedar County, MO, Clay County, MO, Clinton County, MO, Henry County, MO, Jackson County, MO, Jasper County, MO, Johnson County, MO, Lafayette County, MO, McDonald County, MO, Newton County, MO, Pettis County, MO, Platte County, MO, Ray County, MO, Saline County, MO, St. Clair County, MO, Vernon County, MO, Craig County, OK, Creek County, OK, Delaware County, OK, Mayes County, OK, Nowata County, OK, Osage County, OK, Ottawa County, OK, Pawnee County, OK, Rogers County, OK, Tulsa County, OK, Wagoner County, OK, Washington County, OK
The radar
The Wichita radar (KICT), 125 km from the middle of the area, began a volume at 20:29 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
- 20%
- One or more EF2 to EF5 tornadoes
- 2%
- Ten or more severe wind reports
- 70%
- One or more gusts of 65 knots or more
- 20%
- Ten or more severe hail reports
- 70%
- One or more hailstones of 2 inches or more
- 30%
- Six or more combined severe hail and wind reports
- 95%
Warnings issued inside it
55 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 16, 3:44 PM CDT | Severe Thunderstorm Warning | TOP | Douglas, Franklin | 33 min |
| Aug 16, 3:49 PM CDT | Severe Thunderstorm Warning | TSA | Osage, Pawnee | 56 min |
| Aug 16, 3:53 PM CDT | Flash Flood Warning | TSA | Creek, Osage, Pawnee, Tulsa | 4 hr |
| Aug 16, 3:57 PM CDT | Severe Thunderstorm Warning | TSA | Creek, Osage, Pawnee, Tulsa | 63 min |
| Aug 16, 4:01 PM CDT | Severe Thunderstorm Warning | EAX | Miami | 44 min |
| Aug 16, 4:01 PM CDT | Severe Thunderstorm Warning | TOP | Lyon, Osage | 59 min |
| Aug 16, 4:24 PM CDT | Severe Thunderstorm Warning | TSA | Osage, Washington | 51 min |
| Aug 16, 4:27 PM CDT | Severe Thunderstorm Warning | EAX | Miami | 48 min |
| Aug 16, 4:33 PM CDT | Severe Thunderstorm Warning | TOP | Coffey, Osage | 57 min |
| Aug 16, 4:34 PM CDT | Severe Thunderstorm Warning | ICT | Chautauqua, Cowley | 29 min |
| Aug 16, 4:38 PM CDT | Severe Thunderstorm Warning | TOP | Anderson, Franklin | 67 min |
| Aug 16, 4:45 PM CDT | Flash Flood Warning | TSA | Creek, Okmulgee, Tulsa | 4 hr |
| Aug 16, 4:48 PM CDT | Severe Thunderstorm Warning | TOP | Anderson, Coffey | 42 min |
| Aug 16, 4:51 PM CDT | Severe Thunderstorm Warning | TSA | Nowata, Washington | 39 min |
| Aug 16, 4:57 PM CDT | Severe Thunderstorm Warning | TSA | Creek, Okfuskee, Okmulgee, Tulsa, Wagoner | 48 min |
| Aug 16, 5:02 PM CDT | Severe Thunderstorm Warning | ICT | Chautauqua, Montgomery | 43 min |
| Aug 16, 5:10 PM CDT | Severe Thunderstorm Warning | EAX | Bates, Cass | 14 min |
| Aug 16, 5:17 PM CDT | Severe Thunderstorm Warning | TSA | Craig, Nowata | 43 min |
| Aug 16, 5:18 PM CDT | Severe Thunderstorm Warning | ICT | Chautauqua, Elk, Montgomery | 42 min |
| Aug 16, 5:19 PM CDT | Severe Thunderstorm Warning | TOP | Anderson, Coffey, Lyon | 56 min |
| Aug 16, 5:28 PM CDT | Severe Thunderstorm Warning | TOP | Anderson | 62 min |
| Aug 16, 5:32 PM CDT | Severe Thunderstorm Warning | EAX | Linn | 43 min |
| Aug 16, 5:36 PM CDT | Severe Thunderstorm Warning | SGF | Cherokee | 54 min |
| Aug 16, 5:47 PM CDT | Severe Thunderstorm Warning | SGF | Newton | 43 min |
| Aug 16, 5:49 PM CDT | Severe Thunderstorm Warning | ICT | Labette, Montgomery | 28 min |
| Aug 16, 5:51 PM CDT | Severe Thunderstorm Warning | TSA | Craig, Ottawa | 32 min |
| Aug 16, 5:53 PM CDT | Severe Thunderstorm Warning | ICT | Allen | 67 min |
| Aug 16, 5:56 PM CDT | Severe Thunderstorm Warning | SGF | Bourbon | 49 min |
| Aug 16, 6:09 PM CDT | Severe Thunderstorm Warning | ICT | Butler, Elk, Greenwood | 66 min |
| Aug 16, 6:13 PM CDT | Severe Thunderstorm Warning | TOP | Anderson, Coffey | 30 min |
| Aug 16, 6:14 PM CDT | Severe Thunderstorm Warning | EAX | Linn | 31 min |
| Aug 16, 6:19 PM CDT | Severe Thunderstorm Warning | EAX | Johnson, Lafayette | 26 min |
| Aug 16, 6:30 PM CDT | Severe Thunderstorm Warning | SGF | Newton | 30 min |
| Aug 16, 6:39 PM CDT | Severe Thunderstorm Warning | ICT | Allen, Neosho | 45 min |
| Aug 16, 6:39 PM CDT | Severe Thunderstorm Warning | EAX | Johnson, Lafayette, Pettis, Saline | 36 min |
| Aug 16, 6:44 PM CDT | Severe Thunderstorm Warning | ICT | Chase | 35 min |
| Aug 16, 6:44 PM CDT | Severe Thunderstorm Warning | SGF | Bourbon | 46 min |
| Aug 16, 6:45 PM CDT | Severe Thunderstorm Warning | TOP | Lyon, Morris | 60 min |
| Aug 16, 6:45 PM CDT | Severe Thunderstorm Warning | EAX | Bates, Cass, Henry, Johnson | 30 min |
| Aug 16, 6:58 PM CDT | Severe Thunderstorm Warning | ICT | Butler | 47 min |
| Aug 16, 7:12 PM CDT | Severe Thunderstorm Warning | ICT | Ellsworth, Rice | 63 min |
| Aug 16, 7:15 PM CDT | Severe Thunderstorm Warning | ICT | Barton | 60 min |
| Aug 16, 7:25 PM CDT | Severe Thunderstorm Warning | SGF | Bourbon, Crawford | 50 min |
| Aug 16, 7:44 PM CDT | Flash Flood Warning | SGF | Bourbon | 6 hr |
| Aug 16, 7:47 PM CDT | Severe Thunderstorm Warning | EAX | Johnson, Lafayette | 28 min |
| Aug 16, 7:49 PM CDT | Severe Thunderstorm Warning | ICT | Chase, Marion | 41 min |
| Aug 16, 8:03 PM CDT | Severe Thunderstorm Warning | SGF | Cedar, Dade, Polk | 42 min |
| Aug 16, 8:11 PM CDT | Severe Thunderstorm Warning | EAX | Johnson, Lafayette, Pettis | 49 min |
| Aug 16, 8:25 PM CDT | Severe Thunderstorm Warning | ICT | Chase | 50 min |
| Aug 16, 8:53 PM CDT | Severe Thunderstorm Warning | ICT | Ellsworth, Saline | 39 min |
| Aug 16, 8:59 PM CDT | Severe Thunderstorm Warning | ICT | Butler, Greenwood | 46 min |
| Aug 16, 9:08 PM CDT | Severe Thunderstorm Warning | ICT | Butler, Harvey, Marion | 52 min |
| Aug 16, 9:16 PM CDT | Severe Thunderstorm Warning | TOP | Lyon | 29 min |
| Aug 16, 9:43 PM CDT | Severe Thunderstorm Warning | TOP | Lyon | 47 min |
| Aug 16, 10:03 PM CDT | Severe Thunderstorm Warning | TOP | Lyon | 24 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 (KFOE), launched 12:00Z, 8.5 hours before the alert went out and 164 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
- 758 J/kg
- Mixed-layer CIN
- -172 J/kg
- Mixed-layer LCL
- 942 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 50 m²/s²
- 0-3 km storm-relative helicity
- 81 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.3
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 16, 5:52 PM CDT | Mesoscale Discussion | SPC | Baxter, Benton, Boone, Carroll, Fulton, Marion | 83 min |
| Aug 16, 2:18 PM CDT | Mesoscale Discussion | SPC | Allen, Anderson, Butler, Chase, Chautauqua, Coffey and 15 more | 2 hr |
| Aug 16, 3:12 PM CDT | Mesoscale Discussion | SPC | Atchison, Brown, Doniphan, Douglas, Jackson, Jefferson and 5 more | 63 min |
| Aug 16, 6:51 PM CDT | Severe Thunderstorm Watch | SPC | Bourbon, Cherokee, Crawford | 6 hr |
Nearby
Severe Thunderstorm Watches in Kansas, 2018Severe Thunderstorm Watches in Missouri, 2018Severe Thunderstorm Watches in Oklahoma, 2018Every severe thunderstorm watch in 2018
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.