At this time would be the warmest day of the warmth wave occasion within the western inside, with cooling already occurring over some coastal areas.
Yesterday’s highs (proven beneath) ranged from over 100F east of the Cascade crest, to close 100F within the Willamette Valley, to the mid to higher 80s round Puget Sound, and to the 60s over the southern Oregon Coast. Hotter than regular over a lot of the area, however few data fell.
At this time, the temperatures are hotter aloft…and, in actual fact, the temperature round 5000 ft on the radiosonde web site at Quillayute (UIL), on the northern WA coast, was close to report ranges for the date–not all time data, day by day data (see beneath). (the dot exhibits as we speak’s temperature and the purple line is the report for the date).
At this time is hotter in some areas and cooler in others. Under is the distinction in temperature at midday in comparison with yesterday on the identical time. Hotter over Puget Sound, comparable within the Willamette Valley, however cooler alongside the southern Washington and Oregon Coasts.
Why cooler alongside the coast? As a result of clouds and funky air are transferring up the coast, as seen within the current satellite tv for pc picture. That is compelled by falling strain within the inside.
The most recent forecasts for Seattle point out as we speak because the warmest day, however the cooling will solely be minor throughout the subsequent few days.
The scenario in jap Washington can solely be described as torrid. Take a look at the scenario at Pasco within the Tri-Cities. Scary. Highs operating to 112F on Friday.
I’ve studied Northwest warmth waves for many years, and this can be a completely different animal from regular.
Why completely different? As a result of the heat is related to a broad high-pressure ridge of excessive strain aloft that’s solely slowly weakening and transferring eastward. Because of this, cool marine air will very slowly transfer into the inside of western Oregon and Washington over the following a number of days.
The long-term forecast suggests sustained cooling subsequent week.
