Portland, Oregon weather forecast for Friday, May 20

PORTLAND, Ore. (KOIN) — If the Weather Service had its own reality show, it would be called “Desperate Meteorologists” — a slight knockoff of “Desperate Housewives.” The only thing we are desperate for is at least two sunny, warm days in a row. Turns out, we could get a lot more than that.

If you feel like rain has washed away every Friday fun day for the past few months, you’re right. It will be the first Friday without rain in six weeks! It has been raining every Friday since April 1.

It also rained almost every weekend in April and we have had measurable rain every weekend this month. This weekend and all of next week looks pretty drier and warmer. If we can go at least three days in a row without rain, it would be our longest dry spell since the end of March.

Good news for sun worshippers! We are heading for drier and warmer weather. Friday morning, however, will be colder than normal. And that’s because we pushed the clouds away.

The Upper Hood River Valley will become cold enough this morning to drop into the 30s. A frost advisory will be in effect from 3 a.m. to 9 a.m. Friday for Hood River Valley. Additionally, parts of central Oregon will face a frost warning on Friday morning as temperatures drop into the upper 20s. Frost warnings and frost advisories will give way to sunshine and warmer highs and lows for the weekend.

High pressure takes over this weekend and most of next week. Temperatures are expected to be in the low 70s on Saturday. Maybe, just maybe, we can hit the upper 70s by next Wednesday.

The weather this weekend is very important. Many events are taking place, including the Oregon International Air Show in Hillsboro. This time it’s all female pilots with all female support crews. I will give the morning weather briefing to the air show performers.

Frost Notice and Frost Warning issued by NWS

FREEZE ADVISORY IN EFFECT 3 AM TO 8 AM PDT FRIDAY.

* WHAT… Low temperatures between 32-35F will cause frost to form.

* WHERE… Upper Hood River Valley.

* WHEN… 3:00 a.m. to 8:00 a.m. PDT Friday.

* IMPACTS… Frost could kill sensitive outdoor vegetation if left uncovered.

https://forecast.weather.gov/wwamap/wwatxtget.php?cwa=PQR&wwa=frost%20advisory

THE FROST WARNING REMAINS IN EFFECT FROM 1 AM TO 9 AM PDT FRIDAY.

* WHAT… Temperatures below freezing in the upper 20 seconds to lower 30 seconds.

* WHERE… In Washington, Simcoe Highlands. In Oregon, the Grande Ronde Valley, John Day Basin, North Central Oregon and Central Oregon.

* WHEN… 1:00 a.m. to 9:00 a.m. PDT Friday.

* IMPACTS… Frost and freezing conditions will kill crops, other susceptible vegetation and possibly damage unprotected outdoor plumbing.

PRECAUTIONARY MEASURES/PREPARATION… Take action now to protect tender plants from the cold. To prevent freezing and possible bursting of outdoor water lines, they should be wrapped, drained, or left to drain slowly. Those with in-ground sprinkler systems should drain them and cover above-ground pipes to protect them from freezing.

https://forecast.weather.gov/wwamap/wwatxtget.php?cwa=PQR&wwa=freeze%20warning

Dale D. Schrum