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6.14 Weather Forecasting
The five weather icons are Sunny, Partly Cloudy, Cloudy, Rainy,
Snowy
.
The forecast icon is based on the rate of change of barometric pressure. Please
allow at least
one month
for the weather station to learn the barometric pressure
over time.
Sunny
Partly Cloudy
Cloudy
Rainy
Pressure
increases for
a sustained
period of
time
Pressure
increases
slightly, or
initial power up
Pressure
decreases
slightly
Pressure
decreases for
a sustained
period of
time
Table 12: Weather forecasting summarization
Note:
When the pressure decreases dramatically, the rainy icon will flash to
indicate stormy.
When the pressure decreases dramatically and the temperature is
below freezing, the snowy icon will flash to indicate blizzard.
6.14.1 Storm Alert
If there is a rapid drop in barometric pressure, the forecast icon will flash.
6.14.2 Weather Forecasting Description and Limitations
In general, if the rate of change of pressure increases, the weather is generally
improving (sunny to partly cloudy). If the rate of change of pressure decreases,
the weather is generally degrading (cloudy, rainy). If the rate of change is
relatively steady, it will read partly cloudy.
weather icons are Sunny, Partly Cloudy, Cloudy, Rainy, Stormy and
The forecast icon is based on the rate of change of barometric pressure. Please
for the weather station to learn the barometric pressure
Snowy
decreases for
a sustained
Pressure
decreases for a
sustained period
of time and
temperature is
below freezing
When the pressure decreases dramatically, the rainy icon will flash to
When the pressure decreases dramatically and the temperature is
below freezing, the snowy icon will flash to indicate blizzard.
If there is a rapid drop in barometric pressure, the forecast icon will flash.
r Forecasting Description and Limitations
In general, if the rate of change of pressure increases, the weather is generally
improving (sunny to partly cloudy). If the rate of change of pressure decreases,
If the rate of change is
Summary of Contents for WH3900
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