Current Charts

 Note images indicated * made using Digital Atmosphere

JetStream 100mb km/hr *

Temperature C *


Wind Direction *


JetStream 200mb km/hr *

Sea Level Pressure *


 Wind 100mb *


JetStream 250mb km/hr *

Relative Humidity *


Wind 200mb *


JetStream 300mb km/hr *

Theta-E *


Wind 250mb*


South Pole JetStream


Sea Surface Temperature *


Wind 300mb*


Dew Point C *

Wind Chill C *

Wind Surface*


JetStream 100mb km/hr *

A note on the Polar Jet Stream

The polar jet stream has a vertical thickness of at least 200 millibars with the core of the jet averaging at about 250 millibars. Either the 200 or 300 mb chart can be used to assess the jet stream. In winter, the 300 mb chart works best and in the summer the 200 mb chart works best.The jet stream is at a higher pressure level (closer to the surface) in the winter because colder air is more dense and is closer to the earth's surface.
The average height of each of the most important levels; 1000 mb is near the surface (sea level), 850 mb is near 1,500 meters (5,000 ft), 700 mb is near 3,000 meters (10,000 ft), 500 mb is near 5,500 meters (18,000 ft), 300 mb is near 9,300 meters (30,000 ft).


UV Index




Yesterdays maximum temperature for Australia




Daily solar exposure for Australia




Back to top

[Home] [Satellite Imaging] [Space] [The SUN] [Planets & Asteroids] [Astronomy] [NASA and ESA] [How To] [News] [World Weather] [Australia Weather] [Tropical Cyclones] [Sea-Ice] [Oceans] [Earthquake] [Tsunami] [Volcanology] [USGS- G.A]