Weather Station Data Logger

for WMR100, WMR200 and RMS300 Weather Stations

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Overview

This Windows application will display and log weather data obtained through a USB connection to the Oregon Scientific WMR100, WMR200 and RMS300 weather stations. You will find features here for a wide range of users, from novices, to experts. The extensive user manual describes program features in detail and includes informative discussions on many topics.

The display includes most of the data available on the console, analysis of wind and temperature data plus graphs of temperature, pressure, wind and rain over varying periods of time. Data is also logged to a CSV file with options for automatic backup and trimming. Daily extremes can be extracted from the log file and written to a separate CSV file. Data upload to Weather Underground and CWOP is supported. Web pages can be generated and uploaded to web servers through FTP.

Screen Shot on Windows Vista



Full-size Image

Features

This application is designed to work with the indoor console receiving multiple outdoor temperature and humidity sensors and with or without the optional UV sensor. The following data is received from the weather station console and properly decoded:

• Temperature/humidity from the base unit and all wireless sensors.
• Current wind speed and direction.
• Average wind speed.
• Station pressure and altitude-corrected pressure.
• Current rainfall rate.
• Rainfall amount for the current hour and past 24 hours.
• Total rain since the last reset, and the date/time of the reset.
• Station clock setting & synchronization status with radio signal.
• Battery status (OK or Low) for console, rain bucket and anemometer.
• UV reading.
• Optional WeatherJack barometer can be used for higher resolution pressure readings.

WSDL can now handle the maximum number of external wireless temperature/humidity sensors. Custom names can be provided for each sensor and graph colors can be user-defined.

Data processing on the raw console data yields the following additional information:

• 15-minute rate of change for temperature and dew point (indoor and outdoor).
• 1-minute summary of wind data -- average and peak gust.
• Wind data processed according to METAR standards. Note: This DOES NOT mean you can legally use this software to produce offical aviation METARs.
• Peak wind gust over the past hour.
• 3-hour altitude-corrected (aka sea level) pressure rate of change.

The CSV-format log file is updated once a minute with the following information:

• Station and altitude-corrected pressure.
• 1-minute peak wind gust and direction.
• 1-minute average wind and direction.
• Rain rate and total rain since reset.
• UV reading.
• Temperature, dew point and relative humidity for all sensors.

Data can be periodically uploaded to the Weather Underground web site or to the Citizen Weather Observer Program (CWOP). Web pages can also be created from templates and uploaded to a web server via FTP.

Users can generate a CSV summary file containing daily extremes of all data currently in the log file.

An options dialog allows the user to configure units used for display and in the CSV log file. Many aspects of automatic log file backup and trimming are also configurable.

Options Dialog

The program offers several calibration (tweaking) options for your sensors including the rain gage and temperature and humidity sensors. Rainfall amount (but not rain rate) can optionally be measured by counting rain bucket tips instead of using the rainfall numbers from the rain gage. There is also an option to compute sea level pressure inside the program, overriding the weather station value.

Download

Checksums for release files are available on the software notes page below.

WeatherJack barometer project

Enhancements

Software Notes