Temperature Drop:: Expect a nearly 20-degree temperature swing, with highs in the upper 50s on Saturday, significantly below the average of 66 for this time of year. This matters because it affects outdoor activities and energy consumption.
Thunderstorm Risk:: The strongest chance for thunderstorms is overnight, especially over the Cascades. This could lead to heavy downpours, small hail, and lightning, impacting travel and outdoor plans.
Wet Commute:: Drivers should prepare for a wet and potentially slick morning commute due to rain and oil accumulation on the roads. This matters because it increases the risk of accidents and delays.
Mountain Snow:: Higher elevations, such as Stevens Pass and Mount Rainier, could see several inches of snow. This information is important for those planning trips to the mountains.
The shift in weather patterns is driven by an incoming upper-level low, which will destabilize the atmosphere and bring cooler air into the region. This change follows a period of record-breaking highs, making the temperature contrast particularly noticeable. The combination of warmth and increasing moisture creates conditions favorable for thunderstorm development.
Tuesday: Soak up the warmth, as it will be the last day in the 70s and 80s for a while.
Overnight Tuesday into Wednesday: The highest potential for thunderstorms exists between 10 p.m. and 6 a.m., especially in the Cascades and Foothills.
Wednesday: Expect rain, with a second wave moving across western Washington later in the morning. Highs will only reach the mid 50s to low 60s.
Rest of the Week: The unsettled pattern continues with showers in the forecast and cooler-than-normal temperatures.
Q: What should I do to prepare for the thunderstorms?
Stay indoors during the storm, avoid being near water, and be cautious while driving.
Q: How much rain is expected?
Rain accumulations are expected to reach around 0.25" to 0.50" for the lowlands and coast, and 0.50" to more than 1" in the foothills and Cascades.
Be prepared for a significant drop in temperature and potential thunderstorms.
Adjust travel plans to account for wet and possibly slick road conditions.
Stay informed about weather updates and advisories.
Do you think this dramatic weather shift will impact your weekend plans? Let us know!
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