colorectal. pertaining to or of the nature of the colon and the rectum. colorectal polyp. benign or malignant; most commonly occurs at the anorectal junction in middle-aged dogs, causing diarrhea, dyschezia and rectal bleeding.
Although favorable conditions for tornadoes in the United States can occur at any time, they are most common in spring and least common in winter. Because spring is a transitional period for the climate, there are more chances of cooler air meeting with warmer air, resulting in more thunderstorms.
Spring tornadoes occur most often across the Southern Plains and Southeastern regions of the United States. If you live in Dixie Alley or anywhere along the Mississippi to Tennessee Valleys, you're more likely to see tornadoes in the fall, winter, and spring months.