3)
Post-Cold Front
Temp:
Rapid Cooling
Press:
Rapid Rising
Wind:
W-NW
Dew
Pt: Lowering
Sky:
Clearing
Wx:
Drying
1)
Pre-Cold Front
Temp:
Warm
Press:
Steady/Falls
Wind:
S-SW
Dew
Pt: High
Sky:
Variable
Wx:
Showers
2)
Frontal Passage
Pressure
Trough
Wind
Shift
Abrupt
Temp Fall
Rain,
T-Showers
Ahrens Fig. 8.12