Synoptic Weather Stuff *G11 Flashcards
Random disclaimer
Pls read over the visual stuff as well
What’s a synoptic weather map
A map showing weather conditions for a particular time on a particular day
Isobar definition
Lines that join all places of equal pressure
What is atmospheric pressure measured in
Hectopascals (hPa)
What does the spacing of isobars indicate
The steepness of a gradient
What do close isobars indicate and what do isobars that are apart indicate *2
*close isobars = steep pressure + strong winds
*apart isobars = gentle pressure + light winds
Ridge definition
High pressure
Extending outwards
To low pressure
Trough definition
Low pressure
Extending outwards
To high pressure
Another name for high pressure cells
Anticyclone
Pressure _____ outwards a high pressure cell
Decreases
Because of CF, in
what direction do winds in a high pressure cell
blow in the southern hemisphere and northern hemisphere
SH- anticlockwise
NH- clockwise
High pressure cells indicate ___ weather
Changeable weather
Front definition
Zone where 2 air masses
Of different air masses
Meet
Pressure____ outwards in a low pressure cell
Increases
Because of CF, in what direction do winds blow
In low pressure cell
Rotate in
Northern and Southern hemisphere
*clockwise in SH
*anticlockwise in NH
