Tendency Arrow - La Crosse Technology WS-9055TWC Instruction Manual

"rainy", although it is possible for the
change to occur quickly. If the symbols
do not change then the weather has not
changed, or the change has been slow and
gradual.
Weather Tendency Arrows
Other possible displays in the
FORECAST LCD are 2 weather tendency
arrows, one that points up (on the left side
of the LCD) and one that points down (on
the right side of the LCD). These arrows
reflect current changes in the air pressure.
An arrow pointing up indicates that the air
pressure is increasing and the weather is
expected to improve or remain good. An
arrow pointing down indicates that the air
pressure is decreasing and the weather is
expected to become worse or remain
poor. No arrow means the pressure is
stable.
13