Do hurricanes produce hail?

Answered by Douglas Hiatt

Do hurricanes produce hail? This is a question that many people may have, and the answer is not as straightforward as one might think. While it is true that hurricanes are incredibly powerful storms that can produce a wide range of severe weather phenomena, hail is actually quite rare during these storms.

One of the main reasons why hail is not commonly seen in hurricanes is due to the specific atmospheric conditions that are necessary for hail formation. Hail forms when there are strong updrafts within a storm that carry raindrops upward into extremely cold regions of the atmosphere. As these raindrops are lifted higher and higher, they freeze into ice pellets, which then collide with supercooled water droplets and grow larger, eventually falling to the ground as hailstones.

In order for hail to form, there needs to be a significant temperature difference between the freezing level and the surface. The freezing level is the altitude in the atmosphere where the temperature drops below freezing. In hurricanes, the freezing level is often quite high, typically around 500 millibars or approximately 5.8 kilometers in altitude. This means that the freezing level is well above the surface, making it difficult for hail to form and reach the ground.

Additionally, hurricanes are characterized by strong vertical wind shear, which refers to the change in wind direction and speed with height. This wind shear can disrupt the updrafts necessary for hail formation, making it even less likely for hail to develop within a hurricane. The strong winds within a hurricane tend to blow hail particles sideways, preventing them from growing larger and falling to the ground.

Another factor to consider is the size of the raindrops within a hurricane. Hurricanes typically have very large raindrops, which are not conducive to hail formation. These large raindrops are a result of the strong updrafts within the storm, which allow for the collection of moisture and the formation of large droplets. In order for hail to form, smaller raindrops are needed to be lifted higher into the freezing levels of the storm.

It is important to note that while hail is rare in hurricanes, it is not entirely impossible. There have been a few documented cases of hail being observed within hurricanes, but these occurrences are relatively infrequent. The specific atmospheric conditions necessary for hail formation within a hurricane are quite rare, making it more common to see other types of severe weather such as heavy rain, strong winds, and tornadoes.

Hurricanes do not commonly produce hail due to the high freezing level in the storm, strong vertical wind shear, large raindrop sizes, and the specific atmospheric conditions required for hail formation. While hail can occasionally occur within a hurricane, it is not a common occurrence.