The National Weather Service issued a severe thunderstorm watch for the Tulsa metro and most of northeastern Oklahoma.
The watch is in effect until 10 p.m.
The watch covers Alfalfa, Craig, Creek, Delaware, Garfield, Grant, Kay, Mayes, Noble, Nowata, Osage, Ottawa, Pawnee, Payne, Rogers, Tulsa, Wagoner, and Washington counties.
A line of storms has developed in south central Kansas.
The main threats could be damaging winds and large hail.