Composite Weather Maps:

Pressure Fields with
IR Satellite Images & Weather Obs.

Pacific Ocean
& Western
North America

(Sketch map: E. Pacific Ocean/W. North America)


(Sketch map: U.S.)

(every 12 hours)

(every 12 hours)

Sea Level (every 6 hours)

Sea Level (every 6 hours)

For background information about some of the meteorological information on these maps, refer to:

  1. general description of these composite weather maps;
  2. key to weather-station plots; and
  3. general description of infrared satellite images.

Other Choices from the California Regional Weather Server

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Creative Commons License
Each weather map and image from the California Regional Weather Server, sponsored by the Department of Earth & Climate Sciences, San Francisco State University, is licensed under a Creative Commons Attribution 4.0 International License.
Permissions beyond the scope of this license may be available at