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  2. dBZ (meteorology) - Wikipedia

    en.wikipedia.org/wiki/DBZ_(meteorology)

    The scale of dBZ values can be seen along the bottom of the image. dBZ is a logarithmic dimensionless technical unit used in radar.It is mostly used in weather radar, to compare the equivalent reflectivity factor (Z) of a remote object (in mm 6 per m 3) to the return of a droplet of rain with a diameter of 1 mm (1 mm 6 per m 3). [1]

  3. South African Weather Service - Wikipedia

    en.wikipedia.org/wiki/South_African_Weather_Service

    The Union of South Africa's Weather Service was established in 1912 under the Department of Irrigation, with Charles M Stewart as its first Chief Meteorologist. [1] At some point between 1912 and 1940, the SAWS' name was changed to the Meteorological Service , and in 1940, during the Second World War , became the responsibility of the ...

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  5. Weather radar - Wikipedia

    en.wikipedia.org/wiki/Weather_radar

    Weather radar in Norman, Oklahoma with rainshaft Weather (WF44) radar dish University of Oklahoma OU-PRIME C-band, polarimetric, weather radar during construction. Weather radar, also called weather surveillance radar (WSR) and Doppler weather radar, is a type of radar used to locate precipitation, calculate its motion, and estimate its type (rain, snow, hail etc.).

  6. Weather forecasting - Wikipedia

    en.wikipedia.org/wiki/Weather_forecasting

    Meteorological radar provide information on precipitation location and intensity, which can be used to estimate precipitation accumulations over time. [43] Additionally, if a pulse Doppler weather radar is used then wind speed and direction can be determined. [44]

  7. Weather satellite - Wikipedia

    en.wikipedia.org/wiki/Weather_satellite

    Once the fire is detected, the same weather satellites provide vital information about wind that could fan or spread the fires. These same cloud photos from space tell the firefighter when it will rain. Some of the most dramatic photos showed the 600 Kuwaiti oil fires that the fleeing Army of Iraq started on February 23, 1991. The night photos ...

  8. Rear flank downdraft - Wikipedia

    en.wikipedia.org/wiki/Rear_flank_downdraft

    The rear flank downdraft can arise owing to negative buoyancy, which can be generated by cold anomalies produced at the rear of the supercell thunderstorm by evaporative cooling of precipitation or hail melting, or injection of dry and cooler air in the cloud, and by vertical perturbation pressure gradients that can arise from vertical gradients of vertical vorticity, stagnation of ...

  9. Training (meteorology) - Wikipedia

    en.wikipedia.org/wiki/Training_(meteorology)

    Radar echos depicting training thunderstorms. In meteorology, training denotes repeated areas of rain, typically associated with thunderstorms, that move over the same region in a relatively short period. Training thunderstorms are capable of producing excessive rainfall totals, often causing flash flooding. [1]

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