Complex sentence: The Ocean Weather Bureau in Hamburg, West Germany knew of the impending storm as early as the morning of 2 January, the German daily Die Welt received an official weather report from the bureau predicting warm and mild weather.
Split into simpler sentences: The Ocean Weather Bureau in Hamburg, West Germany knew of the impending storm as early as the morning of 2 January. The German daily Die Welt received an official weather report from the bureau predicting warm and mild weather.