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    Weather Abbreviations

    Steve Murr

    Please be aware that these comments were copied here from another source and that the date and time shown for each comment may not be accurate.

    Message added by Paul

    A quickie on the abbreviations...

    WZ- Wetterzentrale ( German website for viewing charts)

    NAO- North atlantic oscillation

    PNA- Pacific North american

    SOI./ENSO- El-Nino Southern oscillation

    WAA- Warm air advection

    CAA- Cold air advection

    528 DAM- is the line drawn on the maps that equated to the temperature ( MAX) that snow can be often observed at

    GFS- Global forecasting sytem

    METO- Met office model

    UKMO- United kingdom Met office

    ECM( Or ECMWF) European centre of medium range weather forecasts..

    ASL- Above sea level-

    PPN- Precipitation

    Ensembles- 10 GFS model runs- Control run is the one seen on the models

    SST'S sea surface temperatures

    PM- Polar maritime air

    MT- Maritime Tropical air

    PC- Polar Continental air

    LRF's - Long range forecasts

    MRF's- meduim range forecasts

    Trough- Upper level equivalent to a surface Low pressure

    Ridge- Upper level equivalent to a surface High pressure

    Blocking- The jet stream being moved AROUND CLOCKWISE a large area of high pressure.



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