Model Upgrade: Extratropical Surge & Tide Operational Forecast System (ESTOFS) is Now Global

An example of maximum forecast water levels (m MSL) from a forecast cycle of Global ESTOFS.

On November 24, an upgrade to Global ESTOFS was implemented to provide NWS forecasters with high resolution water level forecast guidance including storm tide (storm surge plus tides) for the entire globe. Global ESTOFS forecast guidance will be used by forecasters at WFOs and the Ocean Prediction Center (OPC) to generate their storm surge forecasts during winter storms including Nor’easters along the U.S. East Coast.

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