Alert archive / Missouri / Tornado Watches in 1998
Tornado Watch 629
The Storm Prediction Center issued this tornado watch at Jun 20, 1998, 7:15 PM CDT for 10 counties in Kansas; 38 counties in Missouri. It was in force for 7 hr.
The area
The outline as issued.
The facts
- Issued
- Jun 20, 1998, 7:15 PM CDT (00:15 UTC)
- Expired
- Jun 21, 1998, 2:00 AM CDT
- In force
- 7 hr
- Issued by
- the Storm Prediction Center
All 48 counties
Anderson County, KS, Atchison County, KS, Doniphan County, KS, Douglas County, KS, Franklin County, KS, Johnson County, KS, Leavenworth County, KS, Linn County, KS, Miami County, KS, Wyandotte County, KS, Adair County, MO, Andrew County, MO, Bates County, MO, Benton County, MO, Buchanan County, MO, Caldwell County, MO, Carroll County, MO, Cass County, MO, Chariton County, MO, Clay County, MO, Clinton County, MO, Cooper County, MO, Daviess County, MO, DeKalb County, MO, Gentry County, MO, Grundy County, MO, Harrison County, MO, Henry County, MO, Holt County, MO, Howard County, MO, Jackson County, MO, Johnson County, MO, Lafayette County, MO, Linn County, MO, Livingston County, MO, Macon County, MO, Mercer County, MO, Moniteau County, MO, Morgan County, MO, Nodaway County, MO, Pettis County, MO, Platte County, MO, Putnam County, MO, Ray County, MO, Saline County, MO, Schuyler County, MO, Sullivan County, MO, Worth County, MO
Warnings issued inside it
11 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 20, 8:02 PM CDT | Severe Thunderstorm Warning | EAX | Leavenworth | 43 min |
| Jun 20, 8:24 PM CDT | Severe Thunderstorm Warning | TOP | Douglas | 31 min |
| Jun 20, 8:39 PM CDT | Severe Thunderstorm Warning | EAX | Johnson, Leavenworth, Wyandotte | 36 min |
| Jun 20, 8:57 PM CDT | Severe Thunderstorm Warning | EAX | Clay, Platte | 48 min |
| Jun 20, 8:57 PM CDT | Severe Thunderstorm Warning | EAX | Jackson | 48 min |
| Jun 20, 9:13 PM CDT | Severe Thunderstorm Warning | EAX | Johnson, Wyandotte | 47 min |
| Jun 20, 9:40 PM CDT | Severe Thunderstorm Warning | EAX | Miami | 35 min |
| Jun 20, 9:52 PM CDT | Severe Thunderstorm Warning | EAX | Leavenworth | 38 min |
| Jun 20, 10:13 PM CDT | Severe Thunderstorm Warning | EAX | Cass | 47 min |
| Jun 20, 10:35 PM CDT | Severe Thunderstorm Warning | EAX | Henry, Johnson | 40 min |
| Jun 20, 11:07 PM CDT | Flash Flood Warning | SGF | Benton, Morgan | 6 hr |
The nearest sounding before it
Topeka, KS (KTOP), launched 00:00Z, 0.3 hours before the alert went out and 185 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
- 4942 J/kg
- Mixed-layer CIN
- -46 J/kg
- Mixed-layer LCL
- 1090 m above ground
- 0-6 km bulk shear
- 37 kt
- 0-1 km storm-relative helicity
- 337 m²/s²
- 0-3 km storm-relative helicity
- 629 m²/s²
- Significant tornado parameter
- 13.7
- Supercell composite
- 52.8
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 20, 9:00 PM CDT | Severe Thunderstorm Watch | SPC | Allen, Anderson, Bourbon, Chautauqua, Cherokee, Coffey and 20 more | 6 hr |
Nearby
Tornado Watches in Missouri, 1998Tornado Watches in Kansas, 1998Every tornado watch in 1998
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.