Which front is described by cirrus clouds thickening into nimbostratus rain and a warmer temperature after passage?

Which front is described by cirrus clouds thickening into nimbostratus rain and a warmer temperature after passage?

• A. Warm Front
• B. Cold Front
• C. Stationary Front
• D. Occluded Front

Answer: (A)

The situation described shows the progression and temperature change that come with a warm front. As warm air slides over cooler air, moisture rises gradually, creating a sequence of clouds that starts high and thin and thickens into lower, rain-bearing layers. Cirrus clouds often appear first and thicken into nimbostratus, bringing steady rain. Once the front passes, warmer air moves in, so temperatures rise. This combination—cirrus thickening into rain clouds and a warmer temperature after passage—fits a warm front.

The situation described shows the progression and temperature change that come with a warm front. As warm air slides over cooler air, moisture rises gradually, creating a sequence of clouds that starts high and thin and thickens into lower, rain-bearing layers. Cirrus clouds often appear first and thicken into nimbostratus, bringing steady rain. Once the front passes, warmer air moves in, so temperatures rise. This combination—cirrus thickening into rain clouds and a warmer temperature after passage—fits a warm front.