- A low threatening dark cloud in a stormy sky
- W000272Z
- The meaning of a cloud line near a storm. A low threatening dark cloud in a stormy sky. With convective showers around, any straight line of clouds is suspect. This dark cloud strip is a weak gust front along the leading edge of slightly cooler air coming from distant rain. In the midst of random clouds, any cloud line will suggest a surface based forcing mechanism like a wind shift or axis of converging air streams.
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