For the Northeast into the southern Ohio Valley, today will be a northwesterly flow severe weather outbreak. What is a NW Flow Severe Weather Outbreak? It's where the jest stream is from the NW aloft and winds at the surface are from the SW. Warm and humid air is transported under the jet resulting in a very unstable atmosphere. In addition, you have shear that develops between the SW winds and NW winds aloft which may support supercell thunderstorms and the potential for tornadoes.
While I think the main impacts will be wind damage and hail, I do think we can see a few tornadoes across Pennsylvania, West Virginia, southern Ohio, Kentucky and perhaps even parts of Virginia.
I did see while writing this that SPC extended the slight risk into the big cities.
Tropical system remains disorganized, but once in the Gulf of Mexico it may start to develop.
Heavy storms along the front today. System in the tropics is having problems but should get its act together soon.
Track of tropical system critical for development, but South Florida could be threatened first.
A new tropical system may be a threat to southern Florida late in the weekend and early next week.
The tropics will produce a storm that could impact the United States coast.
A cold front will be led by severe storms all the way to the Northeast this weekend. Tropics could produce a big storm.