During what weather conditions are flood warnings typically issued?

Flood warnings are typically issued during heavy rainfall because this weather condition directly contributes to elevated water levels in rivers, lakes, and other bodies of water, increasing the risk of flooding. When there is an excessive amount of rain in a short period, the ground may become saturated and unable to absorb additional water, leading to runoff and potential flooding in surrounding areas. This is a critical factor in warning the public about imminent flooding dangers.

The other weather conditions listed—clear skies, high winds, and extreme heat—do not directly correlate with flooding scenarios. Clear skies generally indicate stable weather with little risk of precipitation. High winds can cause damage but do not inherently lead to flooding unless they are associated with storms that bring heavy rainfall. Extreme heat can exacerbate drought conditions but is not linked to flood warnings, as it does not contribute to increased water levels in water bodies.