An occluded front is drawn in purple. It is a cold front that overtakes a warm front. They commonly occur close to a maturing low pressure system.
A wide variety of weather can be found along an occluded front, with thunderstorms possible, but usually their passage is associated with a drying of the air mass. Additionally, cold core funnel clouds are possible if shear is significant along the cold front. Small isolated occluded fronts often remain for a time after a low pressure system has decayed and these create cloudy conditions with patchy rain or showers.
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|Record||98°F July 18, 1999||39°F July 18, 1938|