What type of front is associated with floods?

The type of front associated with floods is called a stationary front.

To understand why stationary fronts can cause flooding, it's important to know what a stationary front is. A stationary front occurs when a warm air mass and a cold air mass collide, but neither one is strong enough to push the other out of the way. As a result, they remain in place relative to each other, often for several days or longer.

When warm and moist air from the warm front side of the stationary front interacts with the cold air from the cold front side, it creates a prolonged period of precipitation. The warm air rises over the cold air, causing it to cool and condense into clouds. This continuous lifting of warm air can lead to extended periods of rain or even heavy downpours, which can result in flooding when excessive rainfall occurs over an extended period.

In addition to stationary fronts, other weather systems such as tropical systems (hurricanes, tropical storms) and slow-moving low-pressure systems can also cause prolonged periods of heavy rain, leading to flooding.