During the passage of a warm front, which weather conditions should be expected?

• A. Cumulus clouds with isolated thunderstorm activity
• B. Clear skies with no precipitation
• C. Stratiform clouds, bringing widespread light and continuous precipitation
• D. Heavy convective showers with strong gusts

Answer: (C)

A warm front brings broad, layered cloud cover and steady, widespread precipitation. As warm, moist air glides over cooler air, it lifts gradually, forming stratiform clouds such as altostratus and nimbostratus. This leads to light to moderate rain that can last for hours and cover a large area, with overcast skies and a more uniform, gentle rainfall pattern.

This fits the situation of a warm front passage, where you’d expect widespread, continuous precipitation rather than isolated thunderstorm activity, clear skies, or heavy convective showers. Cumulus clouds and thunderstorms are more associated with convective activity typical of cold fronts, while clear skies would not accompany a front.