Updated Sunday 8:20 a.m.
Seems every day around here we talk of a new heat record.
How about another one for the pile?
With another sunny and hot day on tap for Seafair Sunday, if temperatures reach 90 again -- and we think it will -- it'll be the 5th day in a row at 90 degrees or warmer. This would tie the all-time record set… about a month ago. Before this year, it had only happened once in 120 years, now it's probably going to happen twice in the same year.
The big area of high pressure responsible for our summer heat presses on through Seafair Sunday with another sunny day with, as mentioned, highs around 90.
Monsoonal moisture from the Desert Southwest continues to creep into Oregon overnight, and some of those thundershowers may bubble up from the Cascades and into Eastern Washington by Sunday evening. This will certainly be something to keep a close eye on, as the introduction of lightning into our weather picture will further increase fire danger.
By the early part of next week, that stubborn high starts to back down again, making way for an upper trough of low pressure to nudge back into the region. This will encourage the marine layer to spread from the coastline and into the Sound as stronger onshore flow returns, and we'll begin chipping away at the heat.
Look for highs to drop into the middle 80s by Monday, then fall into the upper 70s in Seattle and Tacoma Tuesday and Wednesday. Morning clouds will be present in parts of the Sound, although it still looks mainly sunny each afternoon.
We'll see another ramp up into the low 80s late in the week and into next weekend...the summer that continues to bring the heat will keep it coming.
Have a good morning, Shannon O'Donnell & Scott Sistek