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230705-N-NO204-0001.JPG Photo By: U.S. Naval Research Laboratory

WASHINGTON - COAMPS® 27-hour forecast, July 5, 2023, over The Yellow Sea of the horizontal visibility at the surface in kilometers (top left figure). Red colors are for fog (less than 1 km, green for mist (between 1 and 2km), blue for haze (between 2 and 10km). Some of the most important factors that affect the visibility are the surface temperature (top right figure), dew point depression (bottom left figure), and difference between the air and water temperature (bottom right figure). Areas of low visibility coincide with cooler water temperature (patches of blue in top right), air being closer to humidity saturation (patches of dark green in bottom left), and air being warmer than the water (patches of red in bottom right). Yellow triangles represent waypoints of a research vessel during the ONR-sponsored FATIMA project field campaign over the Yellow Sea in the June and July 2023, for which NRL Marine Meteorology Division provided COAMPS forecasts. (U.S. Naval Research Laboratory/Marine Meteorology Division)


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