These products are from the ETA atmospheric model at levels which are significant to the Aviation Community. The initial images are valid at either 00 or 12 UTC and the forecast maps are valid +06 or +12 hours from those initial times.

• Initial Geopotential Heights and Winds
850 mb 700 mb 500 mb 300 mb 200 mb

• Forecast Winds Aloft (+06 hour)
6,000 ft 9,000 ft 12,000 ft 18,000 ft 24,000 ft 30,000 ft 34,000 ft

• Forecast Winds Aloft (+12 hour)
6,000 ft 9,000 ft 12,000 ft 18,000 ft 24,000 ft 30,000 ft 34,000 ft

NCEP Winds Aloft Forecasts for Alaska - Model based upper level winds produced by NCEP in a text format.

AAWU Experimental Winds Aloft Page - New model based flight level winds and temperatures 3000 ft to 24000 ft.