Oregon Temperatures Climb Next Week but Forecast Stops Short of Extreme 2021 Conditions
Oregon will experience above-normal temperatures between July 14 and 22, according to the National Oceanic Atmospheric Association (NOAA).
Sources: NOAA Climate Prediction Center and National Weather Service Portland
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A Weather Trough Will Keep Temperatures Below Those at the Center of the Worst Heat
However, a weather trough off the Pacific Northwest coast will keep temperatures below those at the center of the worst heat. A weather trough is an elongated region of relatively low atmospheric pressure that forces air to converge, rise, and cool.
Next Tuesday Will Be the Hottest Day
Next Tuesday is said to be the hottest day during the week-long weather forecast period, with temperatures ranging between the upper 80s and 90 degrees, according to the Portland National Weather Service (NWS)
However, hotter conditions are predicted for the eastern and southern sections of the state.
Be Cautious When Swimming in Willamette Valley Waterways
NWS warns residents and visitors to the Willamette Valley region, the sprawling 150-mile-long region stretching from Portland in the north to Eugene in the south, to be cautious when swimming.
Despite the heat, the water in local waterways remains cold, and anyone entering it can experience “cold shock.” Cold shock causes dramatic changes in heart rate, blood pressure, and breathing.
| Cold shock risk | Can affect breathing and heart rate |
| Water as warm as 77°F | Can trigger gasping or rapid breathing |
| 50°F to 60°F water | Can still be dangerous |
| Life jacket | Improves survival chances |
| Highest risk moment | Sudden entry into cold water |
Source: National Weather Service cold water safety
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This creates a greater risk of drowning, even for confident swimmers entering calm waterways, warns the NWS.
Oregonians should also heed recommendations to wear life jackets, to swim with a buddy, and to monitor children in the water.
Despite the pending weather warning, the state will not experience the searing temperatures of 2021. That year, more than 100 people died during a four-day heatwave when thermometers peaked at 116 degrees.