A storm surge is expected to affect coastal conditions in northern and northwestern Puerto Rico on Tuesday, with breaking waves reaching up to 10 feet, El Nuevo Día reported on Oct. 20.^[1] For anyone near the water on the north and northwest coasts, that is the number to mind. Inland, the afternoon brings its own weather: rain showers and thunderstorms are forecast mainly over the northern half of the island, including interior sectors, the north-central area and the San Juan metropolitan area.^[2] The forecast covers the northern half of Puerto Rico, from the coast to the interior towns.