What challenge do meteorologists face with computer models?

Meteorologists often face significant challenges when it comes to computer models, and one of these central issues is that many models are not global in scope. Global models encompass the entire Earth and are designed to provide forecasts that cover large areas, accounting for a wide range of atmospheric conditions and interactions. However, some models are regional and only focus on specific areas, which can limit their effectiveness in predicting weather patterns that have implications beyond those localized regions.

Regional models may miss critical phenomena that occur on a larger scale, such as the influence of ocean currents or the impact of weather systems that extend beyond their modeled boundaries. This limitation can lead to inaccuracies in forecasts, especially when significant weather events evolve or change direction over time.

In contrast to the selected answer, other options present challenges that are either overstated or not currently the main focus of meteorological advancements. For example, while updating models is essential, many modern models are frequently refreshed with new data, improving their accuracy and relevancy. Additionally, advancements in technology have made computers capable of processing data at necessary speeds, and current models do take atmospheric temperature into account as a fundamental aspect of weather forecasting.