Fall is Upon Us

What reminds you of fall? The leaves changing colors...school begins...days begin to get darker earlier. Well for me, it's superb low pressure systems coming in off the pacific. Yes, I'm a nerd. Latest Infrared Satellite imagery shows a well defined low off the Washington coast, which will push in a front overnight tonight with associated rain. 

The latest radar image from the Langley Hill radar (yes, that's the new one on the coast) shows the rain has already begun advancing inland. Just a quick note, the Camano Island radar is still down for the new Dual Pol radar update. Should be back up and running in a week or so.

The general atmospheric circulation pattern is set up to allow some strong lows to move by the coast tonight and Tuesday night. Below is an image of the large trough extending down the West Coast.

The trough will persist through Wednesday...
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As we see a new system move in Tuesday night. Here is the forecast for 3hr precipitation Tuesday night around 8pm. Plenty of moisture down the West Coast, with Southern Oregon getting hammered with rain.

You can also see a nice cut off low over the area which will enhance the Southerly flow and keep things fairly mild. By Friday, a ridge builds in which should dry us off quite nicely.

Fall is here so expect the rain to continue for the next....well 3 months. :) Normal high temperatures around this time of the year are the mid 60s. Tuesday and Wednesday highs will be in the upper 50s, and temps will climb to the mid 60s by Friday.