Uncertainty with the onset of showers and thunderstorms today, with significant changes in the last night’s NAM model run.

The GFS continues with showers and thunderstorms increasingly likely after 2-4 PM.   But the NAM holds off most of the showers until 6-9 PM.    So “later and less” seems to be the trend for today.

Both models have the heaviest rain now missing us  and moving up through NE Pennsylvania.