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| 5/16/10: The shelf cloud from the storm approaches Lake Hefner and the Lake Hefner lighthouse. Note the sailboat on the left side of the screen. Minutes later, the storm produced hail larger than golf balls at the lake. | |
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| 5/16/10: The shelf cloud from the storm approaches Lake Hefner and the Lake Hefner lighthouse. Note the sailboat on the left side of the screen. Minutes later, the storm produced hail larger than golf balls at the lake. | |