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Gathering accurate data about the temperatures at different altitudes is important for predicting if precipitation will take the form of snow, sleet, hail, or rain.
Step-by-step explanation:
Usually, temperatures lower with altitude the reason clouds form when a warm humid air mass rises into the upper atmosphere. The moisture condenses into clouds in the upper atmosphere that precipitate as rain. However, when the upper atmosphere is even cooler, other types of precipitation like hail and snow will form. Hail forms when the cloud water droplet freezes to ice and coalesce while snow is more or less individual cloud water particles that are frozen. Studying the temperatures of the upper troposphere can help determine what kind of precipitation to expect.