Yesterday’s “failure to launch” of severe storms was the first sign of a strong ridge beginning to plant itself over the southern U.S.

Within the next 48 hours, winds aloft should weaken substantially. A lot of the Plains will still have some flow and moisture around to keep severe storm chances going, but the vibes of these days are more out of summer than spring. Weak wind shear, moderate instability, and higher cloud bases will be the norm.

As we move forward, some NW flow may try to emerge aloft as the ridge axis shifts further west, which could open the door to some more organized severe activity. But it is clear now the atmosphere has shifted into a summer state as we move into the rest of June.