What weather condition is a primary driver of Mississippi’s spring flooding?

The primary driver of Mississippi's spring flooding is indeed snowmelt and heavy rains. During the spring season, warmer temperatures can lead to the melting of snow in regions farther north, which contributes to an increase in river flows. Additionally, Mississippi often experiences significant rainfall during this time, resulting in saturated soil and swollen rivers. When these conditions combine, they can lead to flooding in low-lying areas as water levels rise beyond capacity.

The other conditions presented are not typically associated with spring flooding in Mississippi. High tides and storm surges are more relevant during tropical storm or hurricane season when coastal flooding can occur. Dry conditions and excessive heat would lead to drought situations rather than flooding. Hailstorms and frosty nights do not contribute to flooding; rather, they are specific weather events that can cause localized damage without affecting broader water levels. Thus, snowmelt and heavy rains are the clear drivers during the spring months, leading to potential flood scenarios.