Variable Weather Table:

                                      Precipitation
Die   Temperature     Atmospheric      Cold     Warm
-----------------------------------------------------
  1       Warm           Clear       Blizzard  Raining
  2       Warm           Clear       Snowing   Raining
  3       Warm       Precipitation   Snowing   Raining
  4       Cold       Precipitation   Snowing   Raining
  5       Cold            Fog        Snowing   Cloudy
  6       Cold            Fog        Cloudy    Cloudy

Temperature Die Adjustment:    -1 if Warm, -1 if PM, 
                               +1 if Cold, +1 if Night.
Atmosphere Die Adjustment:     -1 if PM, +1 if AM.
Precipitation Die Adjustment:  -1 if PM, +1 if AM.

Die adjustments on Temperature for Warm or Cold refer to 
  the previous turn's temperature.
See printed Variable Weather Table for Ground Conditions.