The NHC has designated a new tropical wave that's moving off the coast of Arica as Invest 91L. As of this writing, the NHC gives this system a 40% chance (medium) of development through the next 5 days as it heads towards the west. The GFS & EURO models forecast modest strengthening over the next few days into a depression or TS Grace. Similar to Danny & Erika, it appears the environment will become less favorable for the system as it tracks closer to the Lesser Antilles late next week. We will keep an eye on the system and keep you up to date. As of now, this system poses no threat to any landmasses.