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- global gridded forecasts of upper winds, upper-air temperatures and humidity, flight level and temperature of tropopause, and direction, speed and flight level of maximum wind with the following properaties:
horizontal resolution of 0.25° (improved from 1.25° currently)
1000ft vertical intervals
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Time steps of
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- global WAFC SIGWX data sets will be produced
for 3 hourly intervals between T+6 and T+48
Valid from FL100 to FL600
and contain:
tropical cyclone
severe squall lines;
moderate or severe turbulence (in cloud or clear-air);
moderate or severe icing;
widespread sandstorm/duststorm;
cumulonimbus clouds associated with thunderstorms and with the above (only MOD or FRQ CB)
flight level of tropopause
jet streams
tropopause height as contours
information on the location of volcanic eruptions
information on the location of a release of radioactive materials
Provision Architecture
User States wishing to utilize WAFS data require the following components:
Visualisation software
PC/server on which to run the visualisation software
User States need to determine from which of the SADIS or WIFS Providers they should obtain their data (WAFC London or WAFC Washington respectively). The Regional Air Navigation Plan will give guidance on which of the two providers should be used in what circumstance. Each WAFC operates as a back-up to the other in the event of disruption to service.
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