textproduct: Portland
This forecast discussion was created in the public domain by the National Weather Service. It can be found in its original form here.
SYNOPSIS
It's going to get hot. An upper level ridge gradually builds over the far northeast Pacific then western WA/OR over the next several days ushering in a prolonged stretch of dry and warm/hot conditions. An Extreme Heat Watch is in effect Sunday afternoon through Tuesday evening for the greater Portland/Vancouver Metro, western Columbia Gorge, central Willamette Valley, and portions of the lower Columbia for daytime highs of 95-100 degrees and overnight lows in the mid 60s or warmer, resulting in Major HeatRisk. Heat related impacts are anticipated for much of the region. Temperatures will trend cooler for Wednesday onward with the return of onshore flow.
LONG TERM...Sunday Night through Wednesday
MARINE
Expect a fairly typical summertime weather pattern to take hold the remainder of the week through the weekend as high pressure builds offshore over the eastern pacific. This will allow diurnal northerly winds will strengthen, peaking each afternoon and evening starting this afternoon but becoming more noticeable from Friday into the early to middle portion of next week at 15-20 kt with gusts near 25 kt south of Cape Foulweather, and trending weaker to the north. Due to these conditions, a Small Craft Advisory has been issued for the inner and outer waters south of Cape Foulweather through Friday night. Over the weekend, the areal coverage of the Small Craft may need to be expanded further north, especially over the outer waters. Seas continue to hold around 4-7 ft at 9-11 seconds with a persistent westerly swell. Models are beginning to hint at the arrival of a stronger swell towards the end of next week, although confidence of the arrival and placement of this feature are low at this time. -99
MARINE
PQR WATCHES/WARNINGS/ADVISORIES
OR...Extreme Heat Watch from Sunday morning through Tuesday evening for ORZ108>115-120. WA...Extreme Heat Watch from Sunday morning through Tuesday evening for WAZ206-207-209. PZ...Small Craft Advisory from 11 AM this morning to 5 AM PDT Saturday for PZZ253-273.
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