EF1 tornado in Stephens County, Oklahoma

A storm chaser observed a tornado west-northwest of Loco. Trees were snapped and uprooted along the tornado path. This tornado was embedded within an even larger area of damaging thunderstorms winds.

The approach of an anomalously strong (for mid-June) upper-level disturbance lead to a widespread severe weather outbreak across portions of the forecast area, especially along and west of the I-35 corridor, during the afternoon into late evening of the 15th. This included the development of numerous supercell thunderstorms across the area. Despite relatively high cloud bases, strong low-level instability and sufficient low-level wind shear aided tornadic outcomes, with eleven tornadoes confirmed across western into southern Oklahoma. Numerous reports of large to very large hail, including reports of 4-inch hail in Lawton, and wind damage were received across area.