Predicting Weather By The Moon - Xavier University Libraries

Weather By The Moon
availability of moisture. When large rates of ascent are
located with high moisture availability, heavy rainfall will
likely occur.
Advection(a localised temperature change) of moisture
by the wind can be inferred by noticing the direction
and rate at which moist areas appear to be blown. Similarly,
temperature advection can be inferred by noticing
whether the wind is blowing cold air toward a warm region,
or warm air toward a cold region. The direction of flow of
the wind is generally from west to east throughout the middle
and high latitudes of both hemispheres, but this doesn’t
apply to the tropics..
Strong divergence at upper levels is usually associated
with strong vertical velocities in the middle troposphere,
and severe weather/heavy rainfall. Picture hot summer
air rising as two cold fronts combine. Make this 3 days
after the New Moon and Perigee happen together. On 21st
January 1969, thunderstorms and hail hit the lower North
Is, blocking drains and flooding towns.
Recipe for snow – just after New Moon – polar winds from southeast,
sudden weather change associated with a cold front.
WHAT MAKES A THUNDERSTORM?
The static charges bled to the ground substrate bias
it electrically, so the last wave of frontal activity through
an area sets the stage for the lightning interactions with
further invading air masses. Storms traveling along standing
frontal boundaries have mostly inter-cloud discharges.
This frequently occurs at times of the North or South dec-
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