Several rounds of severe thunderstorms erupted late Thursday afternoon across western Missouri ahead of a surface frontal system. The first round of severe thunderstorms impacted north central Missouri with muliple reports of damaging winds, large hail and at least two funnel clouds. The storms raced northward into Iowa by early evening, with the severe weather threat refocusing further west across northeast Kansas and northwest Missouri early Thursday evening. A line of thunderstorms developed near the Topeka area and move eastward quickly during the 7 pm to 8 pm timeframe, bringing 60-70 mph winds and reports of hail ranging from dime sized to quarter sized from the Leavenworth to the south Kansas City metropolitan area. The most potent storm of the event developed around 7:30 pm across Atchison County Kansas, moving into the St. Joseph area by 8 pm. A weak tornado developed with this supercell storm and caused isolated EF0 damage in southern sections of St. Joseph, based on a damage assessment conducted by NWS personnel. The severe weather activity diminished by around 10 pm.
|3:49 PM CDT Funnel Cloud Near Coffey||8:00 PM CDT Wind Damage in Leavenworth County|
|8:24 PM CDT Low Top Supercell Thunderstorm Approaching St. Joseph||Wall Cloud South Of St. Joseph (near intersection of CR302 and CC Highway looking west southwest). Photo Courtesy of Chris Strunk.|
|Damage Track Of Tornado Through Southern Sections of St. Joseph. Damage Track Approximately 1/3 mile long and 100 feet wide. Damage photos at right.|