Fitxer:Synoptic weather.gifSynoptic chart of weather in USA Source: NASA - http://climate.gsfc.nasa.gov/ English applies to jurisdiction: United States of America determination
Fitxer:Airmassesorigin.pngbytes) Source regions of common air masses http://www.srh.weather.gov/srh/jetstream/synoptic/images/airmasses.gif English determination method: SHA-1
Fitxer:Td plot.gifSource: [http://www.srh.weather.gov/srh/jetstream/synoptic/wxmaps.htm#ww_type National Weather Service - Southern Region Headquarters] dew point (group
Fitxer:Ww plot.gif[http://www.srh.weather.gov/srh/jetstream/synoptic/wxmaps.htm#ww_type National Weather Service - Southern Region Headquarters] present weather information
Fitxer:Pastww plot.gif[http://www.srh.weather.gov/srh/jetstream/synoptic/wxmaps.htm#ww_type National Weather Service - Southern Region Headquarters] past weather (pastww group)