Updated 9/09/2019



RASP – Williams, aka 2-3 Day —

RASP – NorCal, aka Panoche, aka 7 Day —

  • The 7 Day RASP is very helpful since it provides a longer range forecast, and the turnpoints are selectable, but some say that model is less accurate than the Williams 2-3 Day, but there is no consensus  regarding accuracy.


  • Select any region in the USA.  Zoom in and pan to our gliding area.  Helpful for flights of greater than normal distances.

GG – Golden Gate —

  • GPS model (top section) is 12 hour increments.  ‘700mb/  at 12z/  All’ is commonly selected and used to show moisture at 10,000 ft. – From WSC pages –,38.177,-122.149,7,i:pressure,m:eKqacLA

  • Helpful for seeing the big picture, and, you can see forecast weather profiles, including soundings.

Discussion by National Weather Service –

  • Also, see…
  • The San Fran station has an ID of MTR ( see it at the end of the address line above re:Discussion)
  • The Sacamento NWS has an ID of STO

7 Day forecast NWS7-Day Forecast for Latitude 39.15°N and Longitude 122.13°W (Elev. 72 ft) – This is a good one that provides fcst several days more than the 2 Day Williams RASP, but most pilots agree the 2 Day Williams RASP is THE most accurate for a one day forecast.

Satellite Imagery   National Weather Service  (NWS)

GOES 17 Images of Pacific NW coastline – vivid color images of visible clouds (discovered by Pete-98 (1/2/19)

Spot Forecast by NWS

  • Stonyford  A good one to check if you are taking a mountain tow

For those pilots looking for standard pressure charts:  Cool weather page by Morgan 


Links Previously listed

Avenal RASP for North of Truckee

Sierra RASP for South of Truckee

Soundings by Kurt – anywhere and everywhere

Cool weather page by Morgan

Long range forecasts -Soaring Forecasts for the next 16 days.

Radar Maps – Soaring Forecasts for the next 15 minutes.



Proudly powered by WordPress Theme: Adventure Journal by Contexture International.