Complex sentence: However, with the advance of a trough embedded in the westerlies, Carrie quickly deepened under the influence of baroclinic processes, and while the storm's maximum sustained winds increased, it also began to shed its tropical characteristics and begin to resemble an extratropical cyclone.
Split into simpler sentences: However, with the advance of a trough embedded in the westerlies, Carrie quickly deepened under the influence of baroclinic processes. While the storm's maximum sustained winds increased, it also began to shed its tropical characteristics and begin to resemble an extratropical cyclone.