Tornadoes are most commonly found along cold fronts, though stationary fronts and warm fronts may also produce them.
A dry line has even more potential for producing tornadoes than a cold front.
Thunderstorms and tornadoes most often form along cold fronts but they can form along dry lines and, on rare occasions, warm fronts. Some may form in the absence of any front.
Tornadoes are produced by very strong thunderstorms.
It depends on the region, but tornadoes are most common in the spring and summer.
Tornadoes are most often spawned by a type of storm called a supercell.
Thunderstorms and tornadoes, whether they are quick or not, are the product if cumulonimbus clouds.
Tornadoes can occur along a warm front, but you are more likely to find them along a cold front or dry line. Tornadoes can also occur in the absence of any sort of front. Warm fronts often produce precipitation but don't usually result in severe weather.
Tornadoes are least likely to form in association with a warm front, though it can happen.
True
A cold front is most likely to produce thunderstorms and tornadoes. As the cold front pushes into warm, moist air, it can produce an unstable atmosphere that is conducive to the development of severe weather such as thunderstorms and tornadoes.
Tornadoes are more likely to form along a cold front, but they can occasionally form along a warm front. Many tornadoes form in an area called Larko's triangle, between a warm front and cold front. Some tornadoes form along a dry line, and in fact a try line can be more proficient at producing tornadoes than a cold front. Still other tornadoes form from tropical systems, which do not involve any sort of front.
From 2000 through 2011 there were 669 confirmed tornadoes in Iowa. In addition there is a preliminary count of 16 tornadoes so far in 2012 (as of December 6). This brings the total to 685 tornadoes.
Hail and tornadoes would most likely be associated with a cold front or dry line.