Cu pannus

Formation of shredded cumulus pannus in a rain-saturated environment. They had formed underneath Nimbostratus clouds as an upper low over Northern Libya directed a strong, unstable and very moist easterly wind at all levels of the atmosphere over the Maltese Islands. This instability and moisture is clearly depicted in the weather sounding and related weather charts. The mainly moderate rainfall lasting for 30 hours dropped an average of around 60mm of rain onto the Maltese Islands. There was no wind shear to cause any severe thunderstorms. However, at times, the cumulus clouds underneath combined with the rain cloud higher up to produce the occasional clap of thunder and a heavier thundery shower within the continuously falling rain.

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