National Weather Service United States Department of Commerce

Valley Rain and Mountain Snow for Portions of the West; Tranquil Weather for the East

Low pressure will progress inland across the west overnight with some valley rain and higher terrain snow as this system tracks across the Intermountain West on Monday. East of the Rocky Mountains, high pressure will keep the weather pattern tranquil with moderating temperatures expected for the center of the nation. Read More >

Overview

A waterspout developed at approximately 1100-1105 AM CDT about 2 miles offshore of Sky Harbor Airport the morning of August 9, 2012. The waterspout/EF-0 tornado crossed Minnesota Point and Sky Harbor Airport between 1110-1115 AM CDT before crossing Superior Bay and briefly coming onshore as an EF-0 tornado at Barker’s Island before dissipating around 1120 AM CDT. Eyewitnesses at Sky Harbor Airport reported a couple of float plane pontoons were briefly lifted and set back down (not moved), but otherwise no damage was reported on Minnesota Point or at Barker’s Island.

Image
The waterspout near Minnesota Point as seen from the Duluth hillside ~1120AM.
(Photographer Unknown)
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