Hurricanes develop vertically so if the vertical wind shear is strong it rips them apart. Tornadoes, and the parent storm clouds that produce them, require strong vertical wind shear and strong horizontal temperature changes to form and survive; hurricanes thrive in regions of weak vertical wind shear and where the horizontal change in atmospheric temperature is small. Perfect ingredients for severe storms are: strong wind shear/a strong low-level jet, plenty of moisture, and a warm front surging north. When there is a risk of severe weather and a warm front is involved I pay close attention to where the warm front is and the track of the low pressure. South of the warm front and the low pressure is typically where the worst of the weather is and most active weather.
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