PLOWS: Surface Weather Observation Large Scale Map Imagery. Version 1.0

This data set contains maps of surface weather observations over the western two-thirds of the US and southern Canada. The latest observation at the time the plot was generated was utilized, so the plots contain a mix of standard hourly and special observations. The maps were generated by NCAR/EOL. This data set contains imagery from the two PLOWS field phases, 27 January to 30 March 2009 and 14 October 2009 to 10 March 2010. No imagery are available for the period between the field phases.