Why should “marble” size hail be discouraged?
There are two reasons why we do not generally use “marble” size hail: 1. There are many different sizes of marbles. To one person, a “marble” may be the size of a pinball machine “marble”, while to another “marble” may refer to the size of a pellet, or “B B”. 2. Also, notice in the chart above that the criteria for severe weather starts at the level after “marble” size. Therefore, if you were to spot and report hailstones the size of pinball-sized “marbles” the National Weather Service would not consider the report to be in the “Severe” category. All other measurements on the above chart are based on objects that are unvaried in size and are widely associated with the size to which it pertains. Back to top Why does the sky sometimes turn green during thunderstorms, especially hailstorms and tornadic storms? While, dangerous thunderstorms that drop hail and spin up tornadoes seem to be routinely observed as turning green by the public and even severe storm researchers when out conductin
