What is a prognostic chart?

A prognostic chart is a chart that is used by weather forecasters to predict the future weather conditions in a particular area. These charts are created using data from various weather models, including satellite imagery, radar data, and atmospheric data.

Prognostic charts are used to provide information about temperature variations, pressure changes, wind direction and strength, and precipitation levels. They are used to provide a detailed picture of expected weather conditions in the short term, typically over the next 12-24 hours.

These charts can be created for different regions, including oceans, land areas, and specific cities. They are updated frequently to reflect changes in weather patterns and are often used by meteorologists in conjunction with other forecasting tools to provide accurate weather information to the public.