amandstu Registered User
#1

Are there any (moving) charts that just show the Jet Stream (ideally all the way around the world) in real time and historically?

bnt Registered User
#3

Also, the Earth site shows the jet stream model if you set the pressure altitude to 250 HPa, like this.

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amandstu Registered User
#4

bnt said:
Also, the Earth site shows the jet stream model if you set the pressure altitude to 250 HPa, like this.

thanks,but that confuses me .HPa is not a measure of height is it?

igCorcaigh Registered User
#5

amandstu said:
thanks,but that confuses me .HPa is not a measure of height is it?


The altitude at which pressure is 250 hpa, AFAIK

amandstu Registered User
#6

igCorcaigh said:
The altitude at which pressure is 250 hpa, AFAIK

That makes sense (a nice feature)

bnt Registered User
#7

The way the computer models work, they don't display pressure directly but rather the altitude at which the pressure is a certain number. The result is almost the same. The maps don't explicitly try to show the jet stream, but that altitude is where it tends to be - which can mean gaps in the chart where the jet stream deviates out of the chart range. (The Meteociel "jet stream" map is doing the same but at a slightly lower altitude).

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