La Crosse Technology WS-7049 Instruction Manual page 8

A. Weather Icons
There are 3 possible weather icons that will be displayed in the
FORECAST LCD:
Sunny—indicates that the weather is expected to improve (not that
the weather will be sunny).
Sun with Clouds—indicates that the weather is expected to be fair
(not that the weather will be sunny with clouds).
Clouds with Rain—indicates that the weather is expected to get
worse (not that the weather will be rainy).
The weather icons change when the unit detects a change in air
pressure. The icons change in order from "sunny" to "partly
sunny" to "cloudy" or the reverse. It will not change from "sunny"
directly to "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.
B. Weather Tendency Arrows
1. Other possible displays in the FORECAST LCD are 2
weather tendency arrows one that points up (above the
forecast icon) and one that points down (below the
forecast icon).
2. These arrows reflect current changes in the air pressure.
3. An arrow pointing up indicates that the air pressure is
increasing and the weather is expected to improve or
remain good.
4. An arrow pointing down indicates that the air pressure is
decreasing and the weather is expected to become worse
or remain poor.
5. No arrow means the pressure is stable.
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