It seems like you're looking for help with a "weather portfolio," which could refer to a range of topics—such as weather forecasting, climate analysis, or climate-related investments. However, the term "portfolio 3" is not entirely clear.
Could you please clarify your request? Are you interested in creating a portfolio of weather-related investment options, analyzing specific weather patterns, or developing a model for predicting weather? Providing a bit more context will help me assist you better!