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    Interface TafForecastGroup

    A single TAF forecast group representing either the base (initial) forecast or a change group (FM, TEMPO, BECMG, or PROB).

    The base forecast has no changeType and inherits the TAF's overall validity period. Change groups specify when and how conditions are expected to deviate from the base.

    interface TafForecastGroup {
        changeType?: TafChangeType;
        end?: DayTime;
        icing?: TafIcingLayer[];
        isCavok: boolean;
        isNoSignificantWeather: boolean;
        probability?: 30 | 40;
        sky: SkyCondition;
        start?: DayTime;
        turbulence?: TafTurbulenceLayer[];
        visibility?: Visibility;
        weather: WeatherPhenomenon[];
        wind?: Wind;
        windShear?: TafWindShear;
    }
    Index

    Properties

    changeType? end? icing? isCavok isNoSignificantWeather probability? sky start? turbulence? visibility? weather wind? windShear?

    Properties

    changeType?: TafChangeType

    Type of change group. Undefined for the base (initial) forecast.

    end?: DayTime

    End time for this group's validity period (TEMPO/BECMG/PROB only). Uses day+hour with minute 0.

    icing?: TafIcingLayer[]

    Icing layers (6-group), used in US Military TAFs.

    isCavok: boolean

    True when CAVOK (Ceiling And Visibility OK) is reported in this group.

    isNoSignificantWeather: boolean

    True when NSW (No Significant Weather) is reported, indicating the end of weather phenomena.

    probability?: 30 | 40

    Probability percentage for PROB groups (30 or 40). Only used with TEMPO or standalone PROB.

    sky: SkyCondition

    Sky condition forecast for this period.

    start?: DayTime

    Start time for this group's validity period. FM groups include minute; TEMPO/BECMG use day+hour with minute 0. Absent on the base forecast.

    turbulence?: TafTurbulenceLayer[]

    Turbulence layers (5-group), used in US Military TAFs.

    visibility?: Visibility

    Prevailing visibility forecast for this period.

    weather: WeatherPhenomenon[]

    Weather phenomena groups forecast for this period. Empty array when none are forecast.

    wind?: Wind

    Wind information forecast for this period.

    windShear?: TafWindShear

    Low-level wind shear (WS group), if forecast.

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