What weather products will I have using Internet, ADS-B, or XM?

The following chart describes the types of weather features you will have up-to-date while using various weather input sources.

WEATHER FEATURE INTERNET* ADS-B** XM  
AIRMETs
SIGMETs
Winds Aloft (Altitude Advisor) X X
Winds Aloft by Altitude (Maps Page) X
Surface Winds X
Temperature Aloft
METARs
    Surface Temperature
    Visibility
    Surface Wind
    Ceiling
Sky Coverage  
Flight Category
Dewpoint Spread X
TAFs
MOS X X
PIREPs
NOTAMs X
TFRs
NEXRAD Radar
Satellite X
Lightning X ***

*As a general rule, when not connected to the internet or other in-flight weather sources, you'll only have access to what you last viewed on the ground except for Radar and Satellite Maps. If you will not be using an ADS-B or XM receiver, to "preflight" your weather data, do the following:

A. View the Airport pages for departure, destination, alternate and other airports of interest. 

B. View at least 1 of the METAR-based maps (TFRs, AIR/SIGMETs, Flight Rules, Temperature, Dewpoint Spread, Visibility, Wind, Ceiling, Sky Coverage, PIREPs, and Lightning). This will get you all data for all of these maps.

Radar maps, Satellite maps, and Imagery are not downloadable.

**ADS-B may not receive weather information on the ground since a connection to an ADS-B ground station is required.  

*** XM lightning is dependent upon the XM plan you are subscribed to.

TFRs IMPORTANT NOTICE: Graphical TFR information is ONLY updated and displayed if you select the TFR Map overlay while connected to the Internet, or while using an in-flight weather receiver. However, if the FAA publishes a TFR without associated graphical shape information it may not be possible for ForeFlight Mobile to show the graphical TFR on the Maps page. Therefore you should also check the Airports page, under NOTAMs > TFRs for airports along your route, and contact FSS or ATC to confirm that your route does not cross any such TFRs