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- SIGWX abstract "SIGWX is a Significant Weather Chart defined by ICAO.Weather charts being issued by World Area Forecast Centres (from meteorological offices in London and Washington), presenting the most important meteorological phenomena relevant especially for air traffic transport. WAFC publishes them in two formats BUFR code PNG imagesCharts are typically being issued every six hours (0, 6, 12, 18 UTC) and contain forecast valid for next 12 hours. Prognoses are typically prepared for two ranges of heights: SWH - High Level SIGWX (Flight level 250-630) SWM - Medium Level SIGWX (Flight level 100-450)Weather phenomena: Cloud - including information about cloud type, height of base and top, turbulence and icing risk Clear Air Turbulence - including base and top height, strength of turbulence Jet Stream - including base and top height, wind speed Tropopause Height Tropical Cyclone, Sandstorm Volcanoes Frontal systemIMPORTANT NOTE: Amendment 74 to ICAO Annex 3 (effective 7 November 2007) eliminated the requirement for depiction of surface fronts and well-defined convergence zones (e.g. ITCZ) on WAFS SIGWX forecasts (in BUFR-code and PNG chart form). WAFC still publishes frontal bulletins, but they contain no data.".
- SIGWX wikiPageID "27393579".
- SIGWX wikiPageRevisionID "472708162".
- SIGWX hasPhotoCollection SIGWX.
- SIGWX subject Category:Earth_sciences_data_formats.
- SIGWX subject Category:Meteorological_data_and_networks.
- SIGWX type Abstraction100002137.
- SIGWX type Cognition100023271.
- SIGWX type Communication100033020.
- SIGWX type Datum105816622.
- SIGWX type EarthSciencesDataFormats.
- SIGWX type Format106636806.
- SIGWX type Information105816287.
- SIGWX type Information106634376.
- SIGWX type Message106598915.
- SIGWX type MeteorologicalDataAndNetworks.
- SIGWX type PsychologicalFeature100023100.
- SIGWX comment "SIGWX is a Significant Weather Chart defined by ICAO.Weather charts being issued by World Area Forecast Centres (from meteorological offices in London and Washington), presenting the most important meteorological phenomena relevant especially for air traffic transport. WAFC publishes them in two formats BUFR code PNG imagesCharts are typically being issued every six hours (0, 6, 12, 18 UTC) and contain forecast valid for next 12 hours.".
- SIGWX label "SIGWX".
- SIGWX sameAs m.0c03ffk.
- SIGWX sameAs Q17121795.
- SIGWX sameAs Q17121795.
- SIGWX sameAs SIGWX.
- SIGWX wasDerivedFrom SIGWX?oldid=472708162.
- SIGWX isPrimaryTopicOf SIGWX.