La Crosse Technology WS-9043U - Manual (Page 8)

8
FEATURES OF THE WS-9043U
I. WEATHER FORECAST
The weather forecasting feature is estimated to be 75% accurate and is for the next 12 to 24 hours. The weather forecast
is based solely upon the change of air pressure over time. The WS-9043U averages past air-pressure readings to provide
an accurate forecast—creating a necessity to disregard all weather forecasting for 12-24 hours after the unit has been set-
up, reset, or moved from one altitude to another (i.e. from one floor of a building to another floor). In areas where the
weather is not largely affected by the change of air pressure, the sensitivity setting should be set to 1. In areas where the
air pressure changes more rapidly (such as coastal areas) the sensitivity setting should be set to 3.
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).
These icons indicate the expected weather change in the next 12 to 24 hours. The icon does not give an exact
prediction of the weather, however it should be viewed as a generalization of the expected weather change (for
example a “sunny” icon indicates the weather is expected to improve).
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
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.
Comfort Level
Indicator
Weather
Tendenc
y Arrow
WWVB Tower
Icon (indicates
time reception)
Satellite icon
(indicates
outdoor
transmission)
Radio-controlled
time icon
(indicates radio-
controlled time
turned on)
Forecast
icon
Current moon
phase display
Dew point
Heat Index