Select a pre-defined region OR a station identifier/zoom factor, variable, year, month, day, hour, contour interval, contour type, scale size of contour labels, and size of map.
Online archived data go back to July 30, 1998. Data outside of North and/or Central America are limited--even more so prior to 1999.
Station idenitiers (for centerring the map) can be specified as ICAO identifiers (e.g. KALB) or WMO number (e.g. 72518) or latitude,longitude pairs (e.g. 42.75,-73.80). This feature will center the map at that location and will enable the user to zoom in or out by setting the zoom factor. The zoom factor does not work for a standard pre-defined region.
The 912x650 size works best for full page 8.5"x11.5" printing, if you select the landscape orientation using the
"Properties" or "Preferences" option of the print window.