Meteorologist Carlos Anselmi of the Servicio Nacional de Meteorología warned of heavy afternoon rain across interior, northeast, and San Juan metropolitan Puerto Rico on Saturday, with a level 2 flood risk active for possible urban, stream, and river flooding.^[1][2] Anselmi named the northeast and western Puerto Rico as the most flood vulnerable regions.^[3] He said a coastal swell would reach the northern Atlantic coasts on Saturday, creating life-threatening rip currents.^[4] A high risk alert for dangerous rip currents is active for all northern coastal areas of the island.^[5] On Nov 8, Anselmi Molina said Puerto Rico would see unstable rainy conditions on Sunday.^[6] The National Weather Service San Juan office said slow moving showers and thunderstorms would hit during Saturday and Sunday afternoons, mostly over the interior, north and east of the island.^[7] The Servicio Nacional de Meteorología in San Juan gave the same two-day window over interior, north and east Puerto Rico.^[8]