Couple more days of ridging(Thurs/Fri)

Good evening folks and welcome to a late evening post!:o)

As you can see by tonights 11pm inferred satellite imagery, our ridge is in place and thus systems are going up and over the ridge and keeping us cold at night with lows in the 20`s, but sunny and cool(though warmer than last couple days) along with sunny skies. However, this looks to change starting Fri afternoon/evening.

As just mentioned, our weather starts to change come Fri afternoon/ evening as a strong cold front approaches our region. So should start seeing increasing clouds through the afternoon hours. This cold front look to pass over the Puget sound area around Sat morning or afternoon with a cold 500mb -38c trough passing through. And WRF-GFS 00z shows plenty of showers around. Though I`m not seeing any supporting factors as t-storm showers go, there could be that isolated chance as the air mass along will a bit unstable and perhaps cold enough to produce a few ice pellet showers in any of the heavier precip that falls.

Could see a small break in the showers come later Sat, but it looks to be short as yet another frontal system looks to be in here for Sun. And as shown over the past week or so, it still appears that frontal system(a warm front perhaps) stalls right over the PNW for Sun/Mon and what looks to be Tue and maybe even Wed. And this is what looks to be one of those system that has a pine apple express appearence to it taps into sub tropical air. Models of course this far out are still up in the air, but for right now, it appears that SW WA and NW Oregon could see the HEAVIEST RAIN FALL totals due to strong SWLY winds at the 850/500mb level with much lighter SWLY winds at the surface. I wont say how much rain GFS models are showing for next week, but it looks to be enough to there the thought of flooding pops up in your mind.

So there you have the lastet installment of Andy`s(me) weather blog.:o) Have a great Thurs/Fri everyone!