California Regional Weather Server
Instructions for Animations of Jet Stream Forecasts

These jet stream forecast animations typically cover 5 days. With the initial analysis map plus forecast maps at intervals of 12 hours, a five-day animation will contain 11 images. Missing images are listed and automatically skipped.

The WWWeb server ( receives GFS model forecast output data to construct a new jet stream analysis every 6 hours, within 5 hours after the map analysis time. The map analysis times, the starting times for forecasts, are 00Z, 06Z, 12Z, and 18Z.

Animation Controls:


WWWeb Site Navigation:

Click on your browser's "Back" or left-arrow ("<=") button to return to the jet stream analysis animation page from which you just came. Alternatively, return to the California Regional Weather Server's jet stream map menu.

Other Choices from the California Regional Weather Server

Return to the Main Menu (California Regional Weather Server)