The following are plots of objective analyses generated by FSL as a part of the RUC surface assimilation system. The resolution is 15 km on a polar stereographic grid. In addition to the normal surface dataset provided by METARS, RSAS uses a wide range of mesonets to improve data coverage in the West.

Surface Temperature Plots

Location Current Hour Previous Hour
New Mexico Chart Chart
SF Bay Chart Chart
California Chart Chart
Southern Great Plains Chart Chart
Four Corners Region Chart Chart
Pennsylvania Chart Chart

Surface Dewpoint Temperature Plots

The thick black line is the 55F isodrosotherm, which is a traditional location for the dryline.
Location Current Hour Previous Hour
New Mexico Chart Chart
SF Bay Chart Chart
California Chart Chart
Southern Great Plains Chart Chart
Four Corners Region Chart Chart
Pennsylvania Chart Chart

Wetbulb Temperature Plots

Location Current Hour Previous Hour
New Mexico Chart Chart
SF Bay Chart Chart
California Chart Chart
Southern Great Plains Chart Chart
Four Corners Region Chart Chart
Pennsylvania Chart Chart

MSL Pressure Plots

Location Current Hour Previous Hour
New Mexico Chart Chart
SF Bay Chart Chart
California Chart Chart
Southern Great Plains Chart Chart
Four Corners Region Chart Chart
Pennsylvania Chart Chart

Surface Wind Field

Location Current Hour Previous Hour
New Mexico Chart Chart
SF Bay Chart Chart
California Chart Chart
Southern Great Plains Chart Chart
Four Corners Region Chart Chart
Pennsylvania Chart Chart

3-Hour Surface Pressure Tendency Plots

Location Current Hour Previous Hour
New Mexico Chart Chart
SF Bay Chart Chart
California Chart Chart
Southern Great Plains Chart Chart
Four Corners Region Chart Chart
Pennsylvania Chart Chart

Surface Equivalent Potential Temperature Plots

Location Current Hour Previous Hour
New Mexico Chart Chart
SF Bay Chart Chart
California Chart Chart
Southern Great Plains Chart Chart
Four Corners Region Chart Chart
Pennsylvania Chart Chart

Plots of T-Tw

Location Current Hour Previous Hour
New Mexico Chart Chart
SF Bay Chart Chart
California Chart Chart
Southern Great Plains Chart Chart
Four Corners Region Chart Chart
Pennsylvania Chart Chart
Robert Carver
Last modified: Tue Apr 2 12:33:10 EST 2002