1. The rich tropical moisture from Miriam and now Tropical Storm Norman will spread into Texas today and this weekend. It's likely that a single identity, which would be Norman, will cross the mountains and move across southern Texas and eventually into the western Gulf of Mexico. On that path, heavy rains will spread from western Texas through the Hill Country into San Antonio and eventually Houston. I can see anywhere from 1-8 inches of rain from that system this weekend across Texas.
That feature will be a trackable feature along the Gulf Coast and eventually the Southeast with heavy rains on the Monday and Tuesday time frame. It will probably weaken coming north into the mid-Atlantic Wednesday and Thursday next week.
2. An upper-level low is still predicted over the Great Lakes this weekend, and that means more waterspouts over the eastern Great Lakes.
3. I posted a map of where snowflakes are possible late next week. With the typhoon recurving in the Pacific, that usually leads to a colder weather pattern a week to 10 days down the road. The air mass coming down next week will certainly be cold enough for upslope snow in Montana and Wyoming, with some snowflakes in the back end of the rain across the northern Plains into the northern Great Lakes.
We are going into a five- to seven-day period of severe weather which will include tornadoes. We could see over 100 reports of tornadoes.
Latest map on the severe weather areas this weekend into Monday. Monday could be the big day.
Marginal severe weather the rest of the week, but the weekend could turn ugly in the Plains as the tornadoes return.
Tornadoes remain low but that may change this weekend.
More severe weather today into Saturday in the form of hail and damaging winds.
Storms will produce hail and strong winds today and Friday. Maybe a tornado or two in Texas.