Jet Stream Analyses
and Forecasts at 300 mb

Northern Hemisphere
(Sketch map: Northern Hemisphere)

ANALYSES (every 6 hrs)

Eastern Pacific &
Western North America
(Sketch map: E. Pac. Ocean & W. North America)

ANALYSES (every 6 hrs)

Analysis overlying an
IR Satellite Image

FORECASTS
(usually valid from the time
of latest-available analysis)


North America
(Sketch map: North America)

ANALYSES (every 6 hrs)

Analysis overlying an
IR Satellite Image

FORECASTS
(usually valid from the time
of latest-available analysis)


North Atlantic
(Sketch map: N. Atl. Ocean)

ANALYSES (every 6 hrs)

Analysis overlying an
IR Satellite Image

FORECASTS
(usually valid from the time
of latest-available analysis)

Southern Hemisphere
(Sketch map: Southern Hemisphere)

ANALYSES (every 6 hrs)