A Couple of Comments
1. The inflow of warm, humid air will hit the front from Oklahoma to Kentucky. Within that area as shown on the map, storms may contain damaging wind gusts and large hail. With the air getting cold aloft, hail may be the bigger factor.
2. Models are still not in good agreement on the moisture from Miriam into Texas. Euro is much wetter while the GFS has backed off. Our thinking is that low-level center from Miriam goes out to the Pacific while the moisture streams off to the northeast into Texas.
Pattern this weekend will feature a storm in the northern Plains and up-and-down heat in the East.
The moonson will bring some nasty weather to the Southwestern part of the country.
Watching the system in the Gulf of Mexico for development. Probably a small chance.
Heat builds into the East while the rain continues for the Pacific Northwest.
Erika will have many issues this weekend includng tracking over the islands with big mountains.