PORTLAND, Ore. (KOIN) — Skies cleared this Friday morning just enough to let all that surface heat escape. What are we left with? Temperatures near freezing and for some of you that could mean frost on surfaces.

It’s the first Friday of December and we’ve already done a 180-degree turn from where we started this month. Remember it was just a few days ago our morning temps were about 20-degrees warmer along with those record breaking afternoon highs in the low 60’s.

For the afternoon, keep your winter gear handy because the highest temperatures may only reach the upper 40’s to 50°. That’s about as close to normal as you can get for Portland weather. Next chance of rain is expected Saturday morning until late afternoon. Sunday will be a lot colder but dry. Highs may only reach the mid 40’s. Then comes along the next storm system from the Gulf of Alaska.

Monday we’re closely monitoring lowering snow levels, mainly across Washington where the coldest pool of air is expected. As of now it appears Vancouver and Portland will avoid any slushy combo. At best it’s a show of snow flakes falling without sticking to the ground. However, the foothills above 1,500′ stand to feel the impacts. Again, so much can change between now and then. We’ll post updates right here on our website.

Plans for the beach?

Incoming storms combined with King Tides will make the coast particularly dangerous this weekend. King Tides are expected Dec 3-5. So what is it that makes the water rise higher than normal at the beach? How can you prepare?

The astronomical circumstances that create king tides are only one factor affecting tidal height in our region. Besides sea level rise, weather, topography and bathymetry are other factors that contribute to tidal height. When more than one of these factors is combined tidal height can compound creating dramatic water levels.

https://wsg.washington.edu/community-outreach/hazard-resilience-and-climate-adaptation/king-tides/other-tidal-factors/

Learn more about King Tides from previous stories we’ve covered.

Small Craft Advisory

MARINE WEATHER MESSAGE National Weather Service Portland OR

Columbia River Bar

SMALL CRAFT ADVISORY IN EFFECT FROM 1 PM THIS AFTERNOON TO 6 PM PST THIS EVENING.

* WHAT…Rough bar conditions expected.

– GENERAL SEAS…7 to 9 ft through Friday night.

– FIRST EBB…Around 330 AM Friday. Seas near 11 ft with breakers possible.

– SECOND EBB…Very strong ebb around 345 PM Friday. Seas near 13 ft with breakers likely.

* WHERE…In the Main Channel of the Columbia River Bar.

* WHEN…Small Craft Advisory, until 6 AM PST early this morning.

Small Craft Advisory, from 1 PM this afternoon to 6 PM PST this evening.

* IMPACTS…Conditions will be hazardous to small craft especially when navigating in or near harbor entrances. PRECAUTIONARY/PREPAREDNESS ACTIONS… Small craft should use extreme caution when navigating in or near harbor entrances.


https://marine.weather.gov/showsigwx.php?warnzone=PZZ210&warncounty=marine&firewxzone=&local_place1=13NM%20ESE%20Long%20Beach%20WA&product1=Small+Craft+Advisory&lat=46.289&lon=-123.7475#.YaoQhvHMJE4