Which aspect of weather analysis charts shows the effect of weather conditions?

The aspect of weather analysis charts that shows the effect of weather conditions is surface prog. This is because surface prog, or surface weather maps, depict current weather conditions and forecast changes at the Earth's surface. They often include information about temperature, pressure, wind direction, and precipitation, allowing meteorologists to visualize how various weather elements interact and change over time. By analyzing these factors, forecasters can predict how weather will develop and how it may affect specific areas, which is crucial for planning and operational purposes.

In contrast, upper atmosphere analysis focuses on weather conditions higher in the atmosphere, but it does not provide a direct indication of surface-level effects. Weather history looks back at past weather events, which, while informative, does not provide real-time analysis of current conditions. Precipitation levels can give an idea of rainfall but do not encompass the full spectrum of weather effects as surface prog does, which integrates various weather elements to present a comprehensive overview.