Monsoon-like conditions persist for the Four Corners Region......There is an Enhanced Risk of Severe Thunderstorms across portions ofthe Northern/Central Plains on Thursday...An upper-level trough will move into the Canadian Maritimes, while anupper low glides across the Northwest and an upper ridge expands acrossthe southern tier of the country late this week. Scattered thunderstormactivity is forecast to develop along a surface front extending from theNortheast/Ohio Valley down to the Lower...