Cloud Sequences

4 questions · 0 multiple choice · 4 written · Reading the sky for frontal timing and convective risk.

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Q1
Describe the typical cloud sequence as a warm front approaches, and estimate the lead time each cloud stage gives you before the front arrives.
Q2
What cloud feature signals a high likelihood of thunderstorms later in the day, and why?
Q3
You see a well-defined cumulonimbus approaching with a visible 'gust front' — a dark line of ruffled water advancing ahead of the rain curtain. What is your immediate action, and why before the rain hits?
Q4
What conditions favour sea fog formation, and what's the practical rule of thumb using temperature and dewpoint?