A First Warn Weather Day was in effect Thursday as a line of rain and storms moved toward the Kansas City area, with tornado warnings already posted for Douglas County and Franklin County and then for Clay, Platte and Ray counties just before 9 p.m.
The storms carried the potential to turn strong to severe, with damaging wind the main threat and isolated spin-up tornadoes also possible. The Kansas City metro and points to the south and east were not in a watch at the time of the report, but the National Weather Service was monitoring storms to the west and could issue one later Thursday evening.
A Level 2 out of 5 severe weather risk covered much of the region, while western parts of Atchison, Franklin and Douglas counties in Kansas were upgraded to a Level 3 out of 5 risk. The highest chance for extra-strong lone storms was in that Level 3 zone west of Kansas City, where isolated supercells were possible through 7 p.m., though the threat depended on storms staying separate long enough to intensify.
The setup also carried a low flood threat, though some pockets could still get extra-heavy rain. Most of the area was expected to pick up 1 inch or less, with isolated spots seeing up to 2 inches.
The line of storms was expected to organize from northwest Missouri and sweep southeast across the region from 6 p.m. to 2 a.m. Thursday night into Friday morning. For the Kansas City metro, the main timing window was 8 p.m. to midnight, and the storms were expected to clear the entire area by 2 a.m. Friday morning.
After that, Friday was expected to turn dry and sunny, with morning lows in the low 50s and highs around 73 degrees. Rain chances return Saturday afternoon into evening for areas along and south of I-70, where there was a 30% chance for rain and storms and a low Level 1 out of 5 severe risk for far southeastern counties. Wind and hail were the main concerns then.
By Sunday, the next First Warn was in place with a 50% chance for rain and a Level 2 out of 5 severe weather risk. The most likely time for rain was Sunday evening into Sunday night, with highs staying in the low 70s and heavy rain possible into the night. The immediate question was not whether the pattern stays active — it does — but how much of Thursday night’s line can hold together before it reaches the metro and how quickly the system exits before the calmer stretch on Friday.