Most guidance brings in a midwestern MCS to the area in the overnight hours. Question is how strong is remains when it gets here, well after daytime heating and with today not a particularly hot/humid one.
Need a couple more radar cycles. Those storms are just developing so hard to say which way they’re moving. And wouldn’t shock me at all if more develop over us.
And ensembles keep a trough over us in the means for the next 2 weeks. Seasonable heat? Sure. But no sign of any persistent mid-upper 90s kinda Bermuda high. If we can get through mid-august without that, climatology starts working in our favor.
Stratospheric circulation is slow and cross-equatorial mixing is even slower. So there wasn’t significant water vapor in the norther hemisphere when the winter PV was established. That’s changed now.
Pinatubo was very much the cause of that +AO.
I think the very high stratospheric water vapor levels from the HTHH eruption are a potential big wild card for this coming winter.