Little Navmap can display METARs from five sources:
- Flight simulator if connected. This also applies to network setups.
- NOAA online weather service
- VATSIM network online weather service
- HiFi Simulation Technologies Active Sky Next
- HiFi Simulation Technologies AS16
You can define in the
Options dialog on the
Weather tab which sources are used to display the METAR
information in tooltips or the tab
Weather in the
Information dock window.
METARs are shown in the airport tooltips and on the
Airport overview tab. Decoded weather information
for all sources is available in the tab
Picture above: Decoded weather information from two online sources. Flight simulator is not connected.
Weather information from a flight simulator can be displayed in three kinds for METARs and decoded weather which depends on the selected airport:
Station: The airport has a weather station. This is the most precise weather indication.
Nearest: The clicked airport has no weather station and the nearest weather was fetched. The ident of the nearest station is shown in the METAR and on the decoded weather tab. Note that the nearest weather station is not necessarily an airport.
Interpolated: The weather is interpolated by the flight simulator using the three nearest stations. This is usually the only option available on airports that are far away from the user aircraft. The ident of the clicked airport is used in the METAR report for this kind of weather report.
Interpolated are always shown together if
Station is not available.
The flight simulator weather is updated every 15 seconds to catch changes in the weather theme.
Online - NOAA and VATSIM
Online weather from both sources is updated every 10 minutes.
Both Active Sky programs are recognized automatically on startup for each simulator.
activeflightplanwx.txt files are loaded and monitored for changes. Weather will be reloaded and updated in the
information display if necessary.
You can also select the
current_wx_snapshot.txt file manually. In that case the
METARs from this file are displayed for all installed flight simulators. The
activeflightplanwx.txt will be loaded
from the same directory.
Departure and destination weather will be displayed if a flight plan is loaded into one of the
Active Sky programs. A suffix
Departure will indicate the usage of Active Sky flight plan weather
on the tab
Weather. This gives Active Sky users the most precise weather indication for departure and destination.
Note that the indication of
Destination depends entirely on the flight plan loaded into Active Sky and not the flight plan in Little Navmap.