|
Jet Streams
At high levels of the atmosphere, strong winds develop as a result of the pressure difference, these winds known as the jet streams are usually located at about 30,000 to 35,000 feet (9000 to 10,000m) and their speed can be as much as 180mph (300kph)
Jet streams can strengthen and steer low pressure systems during winter, when there are greater temperature contrasts, the jets are more pronounced and shift towards the equator. In summer when temperatures are more uniform the jets tend to weaken and shift pole ward. Roll on summer.
Taken from my book on weather
|