nowcastn.
/ˈnaʊkɑːst/, /ˈnaʊkast/, U.S. /ˈnaʊˌkæst/ Meteorology.
A description of present weather conditions or a forecast of the weather immediately expected.
ΘΚΠ
the world > the earth > weather and the atmosphere > weather > study or science of weather > [noun] > weather prediction
weather-prophecy1843
forecast1862
weather-cast1866
weather-forecast1883
weather-making1883
weather prediction1909
nowcast1971
1971 A. Lohse et al. in 3rd Ann. Offshore Technol. Conf. Preprints (Paper No. 1450) II. 343/2 In designing a program to provide weather data to commercial fishing, we should ask..what the user needs in present description of the environment, which is a nowcast; what the user needs in advance description, which is a forecast, [etc.].
1976 Victoria (Texas) Advocate 4 July 5 b/6 Check the weather. Look for nowcast, nearcast and forecasts.
1985 Res. & Devel. (Nexis) Jan. 72 Combined field-station/radar displays provide ‘nowcasts,’ detailed depictions of the current state of the atmosphere.
1997 Washington Post (Nexis) 31 Mar. a1 Four meteorologists staff each of the 21 regional centers, using weather data to generate ‘nowcasts’—forecasts for the next two to four hours.
This is a new entry (OED Third Edition, December 2003; most recently modified version published online March 2022).
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n.1971