Abstract
Marejadas, defined as the combination of waves and tides that affect the usual socio-economic activities on the coast and that can cause damage to its infrastructure (Molina, 2020), becomes relevant since the beginning of the past decade on the Chilean coast due to several events that occurred between 2013 and 2017. Considering that, a local wave forecast (MarejadasUV) was developed by Universidad de Valparaíso in Valparaíso bay, Chile (marejadas.uv.cl), to distinguish wave magnitude along the coast. Combined whit tide forecasting and coastal geometry, the forecast system was capable to evaluate hourly run-up and overtopping for the next seven days, which allows implementation of an impact scale for communication purposes (Molina, 2020).
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