The “standard” summertime pattern is firmly in place, night and morning marine cloudiness giving way, in varied degrees, to afternoon clearing, along with the onshore southwesterly flow.
The cause is an upper level low pressure trough off to the west, inching eastward, which enhances the onshore flow, pushing in the marine clouds. The upper level flow also occasionally has embedded weak disturbances riding in the flow, which move across adding some mid and high clouds along with a slight chance of light drizzle or rain, especially in the morning hours and in the coast range.
One such disturbance is currently moving northeastward through extreme northwest Oregon and most of Washington bring just upper level cloudiness to our area as it moves though.
As the trough get nearer, the thickening marine layer tonight will bring a chance of patchy drizzle and fog to the area once again in the early morning hours tomorrow and again the clouds will be slow to burn back to leave a partly sunny afternoon tomorrow.
The upper level trough slides across Sunday and does give us a slight chance of morning showers but again a partly sunny afternoon is likely, high temperatures continue in the low 70s, lows in the mid 50s.
No real change expected for next week, night and early morning marine clouds get pushed in by the onshore flow, the clouds burning back to some degree each afternoon, and, there is still a chance a disturbance or two could ride the flow up over the area and give us a chance of showers. Currently it appears the best chance of this is around Wednesday night through Thursday morning. High temperatures linger around 70, lows in the mid 50s still.
What Does the Washington Earthquake Mean?
USGS reported, along with many residents, that a 4.6 quake shook the area around Monroe, WA, near Seattle, early this morning. So, what does this mean? It means there are several faults that run though that area that cause them hundreds of quakes each year, many so small they are not felt. The Seattle Fault runs west to east just south of the Seattle area while the South Whidbey Island Fault runs northwestward along the southern part of Whidbey Island. But, don’t be fooled by all these small ones, this is the area of the Nisqually 6.8 quake on 2001, and just as they saw in California recently, this recent one could be the foreshock of a larger one yet to come. The only other quake zone that threatens them, and us, and many others, is the Cascadia Subduction Zone quake.
The bigger question, what does this mean for us, it means if you do not yet have a disaster plan, now is a good time to develop one. Ready.gov is a great resource to help you build one. It also offers ideas on how to develop your communications plan, you know, how will you communicate with family and friends, so, if you are in the disaster area and the phones are no longer working, what is the plan. It also offers ideas on Disaster Kits if you have not taken care of that also.
Did you know there is a Nationwide Earthquake Exercise each year that millions of people worldwide participant in? This is a Drop, Cover, and Hold On event called the Great Shakeout Earthquake Drill. This is an opportunity for YOU to practice being safer during the “Big One”! To get more information and to register, which is free, go to shakeout.org/Oregon. Last year Oregon had over 660,000 folks register for this event. This year’s event is scheduled for October 17th at 10:17am. Yep, easy to remember, 10/17 at 10:17.
Are you in the Tsunami Inundation Zone? Need a new Tsunami Evacuation Brochure? Want the address for the new Tsunami Evacuation map APP for your cellphone. All this and more can be found at oregontsunami.org