The potential for heavy snow at higher elevations in the western U.S. will continue for many spots through the weekend. In the meantime, the eastern half of the continental U.S. will transition to above normal temperatures ahead of a pair of cold fronts next week that will bring readings back to closer to normal as we approach Thanksgiving Day. Read More >
Portland, OR
Weather Forecast Office
Overview
On October 28, 2018, an EF-0 tornado briefly developed in North Portland around 3 PM. The tornado was on the ground for approximately two minutes and caused some minor damage, including snapping some tree limbs and a few small tree trunks. Three semi-truck trailers were overturned in a parking area near Marine Drive, with some minor roof damage observed on a nearby building. A National Weather Service storm survey team rated the tornado an EF-0 with estimated peak wind speeds of 74 mph, based upon this observed damage.
Tornado:
Tornado - North Portland
Track Map |
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The Enhanced Fujita (EF) Scale classifies tornadoes into the following categories:
EF0 Weak 65-85 mph |
EF1 Moderate 86-110 mph |
EF2 Significant 111-135 mph |
EF3 Severe 136-165 mph |
EF4 Extreme 166-200 mph |
EF5 Catastrophic 200+ mph |
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US Dept of Commerce
National Oceanic and Atmospheric Administration
National Weather Service
Portland, OR
5241 NE 122nd Avenue
Portland, OR 97230-1089
(503) 261-9246
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