Alert archive / Kansas / Severe Thunderstorm Watches in 2002
Severe Thunderstorm Watch 685
The Storm Prediction Center issued this severe thunderstorm watch at Sep 18, 2002, 3:55 PM CDT for 41 counties in Kansas; 5 counties in Missouri. It was in force for 6 hr.
The area
The outline as issued.
The facts
- Issued
- Sep 18, 2002, 3:55 PM CDT (20:55 UTC)
- Expired
- Sep 18, 2002, 10:00 PM CDT
- In force
- 6 hr
- Issued by
- the Storm Prediction Center
All 46 counties
Allen County, KS, 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, Leavenworth County, KS, Lyon County, KS, Marion County, KS, Marshall County, KS, McPherson County, KS, Miami County, KS, Montgomery County, KS, Morris County, KS, Nemaha County, KS, Osage County, KS, Pottawatomie County, KS, Riley County, KS, Sedgwick County, KS, Shawnee County, KS, Sumner County, KS, Wabaunsee County, KS, Wilson County, KS, Woodson County, KS, Wyandotte County, KS, Buchanan County, MO, Clay County, MO, Clinton County, MO, DeKalb County, MO, Platte County, MO
The radar
The Wichita radar (KICT), 86 km from the middle of the area, began a volume at 20:58 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.
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 |
|---|---|---|---|---|
| Sep 18, 3:58 PM CDT | Severe Thunderstorm Warning | ICT | Harper | 62 min |
| Sep 18, 4:50 PM CDT | Severe Thunderstorm Warning | ICT | Sedgwick | 55 min |
| Sep 18, 4:53 PM CDT | Severe Thunderstorm Warning | ICT | Harper | 37 min |
| Sep 18, 4:57 PM CDT | Severe Thunderstorm Warning | ICT | Sumner | 63 min |
| Sep 18, 5:01 PM CDT | Severe Thunderstorm Warning | ICT | Harvey | 59 min |
| Sep 18, 5:23 PM CDT | Severe Thunderstorm Warning | ICT | Marion | 67 min |
| Sep 18, 5:49 PM CDT | Severe Thunderstorm Warning | ICT | Sumner | 41 min |
| Sep 18, 5:56 PM CDT | Severe Thunderstorm Warning | ICT | Sedgwick | 34 min |
| Sep 18, 6:15 PM CDT | Severe Thunderstorm Warning | ICT | Cowley | 60 min |
| Sep 18, 6:44 PM CDT | Severe Thunderstorm Warning | ICT | Butler | 61 min |
| Sep 18, 7:05 PM CDT | Severe Thunderstorm Warning | EAX | Atchison | 40 min |
| Sep 18, 7:22 PM CDT | Severe Thunderstorm Warning | ICT | Elk | 53 min |
| Sep 18, 7:51 PM CDT | Severe Thunderstorm Warning | EAX | Doniphan | 39 min |
| Sep 18, 7:54 PM CDT | Severe Thunderstorm Warning | ICT | Cowley | 66 min |
| Sep 18, 8:23 PM CDT | Severe Thunderstorm Warning | ICT | Wilson | 67 min |
| Sep 18, 8:39 PM CDT | Severe Thunderstorm Warning | EAX | Atchison | 66 min |
| Sep 18, 8:58 PM CDT | Severe Thunderstorm Warning | ICT | Cowley | 32 min |
| Sep 18, 9:01 PM CDT | Severe Thunderstorm Warning | ICT | Chautauqua | 59 min |
| Sep 18, 9:06 PM CDT | Severe Thunderstorm Warning | EAX | Leavenworth | 54 min |
The nearest sounding before it
Topeka, KS (KTOP), launched 12:00Z, 8.9 hours before the alert went out and 131 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
- 1548 J/kg
- Mixed-layer CIN
- -213 J/kg
- Mixed-layer LCL
- 749 m above ground
- 0-6 km bulk shear
- 53 kt
- 0-1 km storm-relative helicity
- 502 m²/s²
- 0-3 km storm-relative helicity
- 727 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 5.2
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 18, 6:00 PM CDT | Tornado Watch | SPC | Andrew, Atchison, Daviess, Gentry, Harrison, Holt and 3 more | 6 hr |
Nearby
Severe Thunderstorm Watches in Kansas, 2002Severe Thunderstorm Watches in Missouri, 2002Every severe thunderstorm watch in 2002
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.