Temperature Advection:
A strong cold advection behind the frontal zone in the lower troposphere is seen.
Divergence:
There is distinct convergence within the frontal zone and divergence above it.
Vertical Motion (Omega):
The ascending motion in the leading edge of the front is very strong.
Temperature:
On the left hand side the very cold arctic air under 800 hPa with a surface inversion is seen. Arctic air mass occurs
only at low levels; in the upper troposphere the air mass is polar throughout the area.