AMVER/SEASA software program created by the National Weather Service intended to efficiently generate AMVER and VOS reports as part of a cooperative effort.Arctic Sea SmokeSteam fog, but often specifically applied to steam fog rising from small open water within sea ice. Combined SeasGenerally referred to as SEAS. Used to describe the combination or interaction of wind waves and swells in which the separate components are not distinguished. This includes the case when swell is negligible or is not considered in describing sea state. Specifically, Seas2 = S2+W2 where S is the height of all swell components and W is the height of the wind wave components. When used, SEAS should be considered as being the same as the significant wave height.
Growing Seasonthe period of time between the last killing frost of spring and the first killing frost of autumn.Hazardous Seas WarningA warning for wave heights and/or wave steepness values meeting or exceeding locally defined warning criteria. Hazardous Seas WatchA watch for an increased risk of a hazardous seas warning event to meet Hazardous Seas Warning criteria but its occurrence, location, and/or timing is still uncertain. High Seas Forecast(HSF) - Marine forecasts for the major oceans of the world. In this context, major gulfs or seas (e.g., the Gulf of Mexico or the Bering Sea) are included within these forecast areas. Areas of responsibility for the U.S. are determined by international agreements under the auspices of the World Meteorological Organization (WMO).Hurricane SeasonThe part of the year having a relatively high incidence of tropical cyclones. In the Atlantic, Caribbean, and Gulf of Mexico, and central North Pacific, the hurricane season is the period from June through November; in the eastern Pacific, May 15 through November 30. Tropical cyclones can occur year-round in any basin.Intraseasonal OscillationOscillation with variability on a timescale less than a season. One example is the Madden-Julian Oscillation.Mean Sea Level(MSL) - The arithmetic mean of hourly water elevations observed over a specific 19-year tidal epoch. Rough SeasSea conditions associated with regionally defined wind thresholds over bays, inlets, harbors, inland waters, and estuaries where larger waves are forming with whitecaps and spray everywhere.Sea BreezeA thermally produced wind blowing during the day from a cool ocean surface onto the adjoining warm land, caused by the difference in the rates of heating of the surfaces of the ocean and of the land.Sea Breeze Convergence ZoneThe zone at the leading edge of a sea breeze where winds converge. The incoming air rises in this zone, often producing convective clouds.Sea Breeze FrontThe leading edge of a sea breeze, whose passage is often accompanied by showers, a wind shift, or a sudden drop in temperature.Sea FogCommon advection fog caused by transport of moist air over a cold body of water. Sea IceAny form of ice found at sea which has originated from the freezing of sea water (sea ice does NOT include superstructure icing). Ice formed from the freezing of the waters of the Great Lakes will be considered the same as sea ice. Sea Level PressureThe sea level pressure is the atmospheric pressure at sea level at a given location. When observed at a reporting station that is not at sea level (nearly all stations), it is a correction of the station pressure to sea level. This correction takes into account the standard variation of pressure with height and the influence of temperature variations with height on the pressure. The temperature used in the sea level correction is a twelve hour mean, eliminating diurnal effects. Once calculated, horizontal variations of sea level pressure may be compared for location of high and low pressure areas and fronts.Sea Surface TemperaturesThe term refers to the mean temperature of the ocean in the upper few meters.SeasThe combination of both wind waves and swell. Used to describe the combination or interaction of wind waves and swell in which the separate components are not distinguished. This includes the case when swell is negligible or is not considered in describing sea state. Specifically, Seas2 = S2+W2 where S is the height of the swell and W is the height of the wind wave. When used, Seas should be considered as being the same as the Significant Wave HeightShort-Term Prediction Research and Transition (SPoRT)A NASA- and NOAA-funded activity to transition experimental/quasi-operational satellite observations and research capabilities to the operational weather community to improve short-term weather forecasts on a regional and local scale.Short-Term Prediction Research and Transition Center - Land Information System (SPoRT-LIS)Provides high-resolution (~3 km) gridded soil moisture products in real-time to support regional and local modeling and improve situational awareness.Typhoon SeasonThe part of the year having a relatively high incidence of tropical cyclones. In the western North Pacific, the typhoon season is from July 1 to December 15. Tropical cyclones can occur year-round in any basin.
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