Tropical Storm Isaias forms overnight

From the National Weather Service:

Please understand there is a lot of uncertainty regarding storm track and intensity later in the forecast, as Isaias potentially impacts our area.  The forecast may adjust both in terms of track and intensity. 
We are confident that we will see impacts as early as Friday afternoon with rip currents.  With this coinciding with the weekend. Rip current risk could be an issue for those arriving at the beach this weekend.