Decreasing steadily [While the Front is Passing] Leveling off Slight rise followed by a decrease [Weather phenomenon] 
Atmospheric pressure
T e m p e r a t u r e
A t m o s p h e r i c p r e s s u r e
W i n d s
P r e c i p i t a t i o n
C l o u d s
V i s i b i l i t y
D e w p o i n t