User`s guide

Virtual Weather Station User's Guide
-33- 04/10/07
Temperature for Outdoor Temperature. In these special
cases, Virtual Weather Station allows you to swap or
interchange these parameters.
Figure 20- Advanced Parameter Settings
6.17.8 Rainfall Settings
Menu Shortcut: Settings X Rainfall
Some stations calculate the daily and monthly rain.
In the event the daily and monthly rain is not calculated by
the weather station, the daily rain is calculated by
subtracting the minimum daily rain from the maximum
daily rain. To change the daily, monthly or yearly rain, you
must calculate the difference between the daily maximum
and minimum rain, and enter it in the minimum rain field.
The daily rain is stored by Virtual Weather Station as the
difference between the maximum daily rain and the
minimum daily rain, or:
Daily Rain = Maximum Daily Rain - Minimum Daily Rain
The same is true for monthly and yearly rain.
Note that changing the daily rain does not change the
monthly or yearly rain automatically. You must edit the
monthly and yearly rain fields as well.
Some stations are not capable of reporting daily rain, so
Virtual Weather Station must be operating 24-hours per day
to capture the total amount.
Figure 21 - Rainfall Settings
6.17.9 Dominant Wind Direction Counter
Menu Shortcut: Settings X Dominant Wind Direction
Virtual Weather Station calculates the dominant wind
direction based on the day, month and year. The wind
direction is only counted when the wind speed is greater
than 0. The dominant wind direction values can be edited.
This information is summarized in the NOAA reports.