General Weather Forecasts
These links are useful for the general weather situation and forecast. Is it going to be sunny, hot, windy etc. The forecast discussion is full of weather technospeak,
but it comes directly from the NOAA folks who are looking firsthand at the weather soundings and computer forecasts.
Surface Winds & Winds Aloft
For paragliders, the winds aloft are really important, both for students and advanced cross county sky Gods. High winds aloft will tend to move downward as
thermals mix up the atmosphere. Be careful of flying with light winds on the surface and high winds aloft, such as when an inversion is present : the surface
winds can increase suddenly.
Aviation
Center Winds Aloft
Air
Sports Net Winds Aloft Seattle
Air
Sports Net Winds Aloft Yakima
MM5 Wind
Forecast
Aviation Weather
Links to sites and pages that provide weather information to general aviation pilots. These pages provide information usually targeted to pilots flying
larger powered aircraft, but if you fly near an airport, the terminal area forecasts (TAFs) are useful as another source of wind data. Sometimes they can use
hard to understand terms and abbreviations, so be sure to ask you instructor to expalain these if you don't understand them.
As part of the general aviation community we are required to check if we are allowed to fly in our intended airspace. The FAA issues notices to airmen
(NOTAM's) to tell us of any restrictions. You can ask the weather briefer or look online.
SeaTac Airport TAF
Seattle NWS
Wenatchee Airport TAF
Spokane NWS
FAA NOTAMS
Isobar Maps (Barometric Pressure)
Looking at the surface pressure maps will tell you the direction and strength of the regional wind. Sometimes the local thermals or geography
can overpower the regional wind, but always be aware of the regional winds.
SFSU
Eastern Pacific Pressure Map
Jet Stream Maps
When a jet stream is close to or over your flying site, forecasting the weather can become difficult. The weather can change very quickly and
unpredictably when so much energy in the atmosphere is close by. When there are high winds aloft in mountainous areas, waves can be set up that
can cause very sudden and powerful wind shifts at the surface. Be careful.
SFSU
Eastern Pacific Jet Stream Map
Jet Stream
Map for the Week
Soaring Forecasts and Upper Air Data
Soaring forecasts will help you determine how thermic and soarable a particular day will be. Keep an eye on the Thermal Index which will give you an idea of how
strong the conditions could potentially become during the day.
Seattle
Soaring Forecast
Yakima
Soaring Forecast
Dr. Jacks Blipmaps
Java Skew-T Soundings
MM5 Soundings