National Weather Service United States Department of Commerce

Excessive Heat Continues in the Southwest on Monday

A cold front will bring relief to the Pacific Northwest on Monday, but the Southwest will see above average temperatures again. Excessive Heat Warnings are in effect for many locations through Monday evening. The hottest temperatures will be in the desert as daytime high temperatures may exceed 115 degrees. Read More >

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Last Map Update: Sun, Jun. 25, 2017 at 5:41:16 pm PDT

National Weather Service Portland, ORNational Weather Service Pendleton, OR
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National Weather Service Boise, ID
National Weather Service Eureka, CANational Weather Service Sacramento, CANational Weather Service Reno, NV

Isolated to scattered thunderstorms are expected today. Expect thunderstorm development west of the Cascades in Oregon and northern California first, then later today thunderstorms will develop over the East Side. Due to dry conditions at low levels, thunderstorms will likely begin with no precipitation hitting the surface… but that doesn’t make lightning any less dangerous! Now is the time to develop a plan on what to do and where to go if you are stuck outside, and always keep an eye to the sky. Remember, when thunder roars, go indoors.
The heatwave will continue today. Many areas in southern Oregon and northern California will see temperatures in the 90s to the triple digits. The hottest temperatures will occur in west side valleys. If you’re going to be outside for any length of time today, make sure to take frequent breaks (preferably in air conditioning) and stay hydrated. Limit strenuous exercise to the morning and evening when temperatures are somewhat cooler. Make sure to check your car for pets and children: look before you lock.
A change in the weather is expected, with warmer temperatures, mostly sunny skies, and limited rain chances this holiday weekend. If you are planning any outdoor marine activities, make sure to take precautions. Wear a life jacket if boating, and don’t jump into cold water. Despite low snow levels from last winter, area rivers are still receiving enough snow melt to keep waters cold enough—around 60 degrees—to initiate “cold water shock” which could lead to hypothermia, or even cardiac arrest for people without heart problems.
Here are some heat safety tips.

 

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