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Updated: 10:29 PM Mar 9, 2009
T-Storm Warning Change...
For years, hail 3/4 of an inch or larger met severe criteria for thunderstorms. This year, that threshhold has been bumped to 1 inch or larger.
Posted: 10:21 PM Mar 9, 2009Reporter: 11 News Storm Team Email Address: weather@kktv.com |
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It has been a hot topic for the past few years, that 3/4 inch diameter hail simply doesn't pose a damage threat. Simply put, the speed in which a hail stone that size falls to the ground, doesn't achieve a high enough speed to cause damage. However, a hail stone that is 1 inch in diameter will achieve a high enough speed to cause damage. So, the National Weather Service has bumped up the severe criteria for hail to 1 inch in diameter or larger. A good move, if you ask me. Trying to determine the difference between 3/4 inch and 1 inch diameter hail based on radar is pretty tough. It may cause a few less warnings to be issued, but we'll see.
Chief Meteorologist Brian Bledsoe
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