Hail quarter refers to a particular meteorological phenomenon characterized by large-sized hailstones, typically measuring approximately one-quarter of an inch in diameter. Hail, in general, occurs when updrafts in thunderstorms or cumulonimbus clouds carry raindrops upward into freezing temperatures within the storm cloud, resulting in the formation of ice pellets. However, hail quarter specifically denotes hailstones that have reached a specific size threshold.
The term "quarter" in hail quarter signifies that these hailstones have a diameter of around one-fourth of an inch, equivalent to approximately 6.35 millimeters. This distinction is often important for weather reporting, as hail diameter can vary significantly, and larger hailstones are more likely to cause property damage and pose hazards to humans and animals.
Hail quarter can be experienced during severe thunderstorms and is often associated with severe weather conditions such as strong winds, heavy rainfall, lightning, and thunder. During hail quarter events, the hailstones can descend from the cloud layer of the storm and reach the surface, where they can accumulate on the ground. The impact of hail quarter can potentially damage buildings, vehicles, crops, and other objects, as well as pose a risk to personal safety if encountered outdoors during the hailstorm.
Weather forecasters and meteorologists may use the term hail quarter as a standard way to communicate and classify hailstone sizes during storm events, aiding in public awareness and preparedness for severe weather conditions.
