Posted by: Richard | December 7, 2014

San Francisco Bay Area and Northern and Central California Forecast Discussion-01/16/2018 – 6AM PST

Short Term Weather 1 to 7 day Forecast Discussion   A weakening weather front moved through Northern California yesterday bringing only light amounts of rain with only a few hundredths of precipitation in the Bay Area.  A weak ridge will build into California tonight and Wednesday before a stronger weather system impacts the region later Wednesday night and Thursday that will bring moderate amounts of rain to Northern and Central California by Thursday with lingering showers into Friday.  A even stronger weather system will impact California later in the weekend.  The associated front is expected to be move through the San Francisco Bay Area by Sunday night with a good soaking with the last in the series of storms expected to arrive Tuesday night and Wednesday.

Northern and Central California 8 to 15 day extended forecast  The latest computer models are suggesting that a strong trough will reach Northern and Central California early in the period bringing rain to the state with snow in the mountains and that high pressure may build into California later in the period bringing improving weather later in the period.

Northern and Central California 16 to 20 day extended forecast – The latest computer models are showing a high pressure ridge off the west coast and a trough inland over the Western United States early in the period that would leave California in a mostly dry pattern with a slight chance of showers in the far north at times. Temperatures will average a little below near normal during the period.  



  1. Hi Richard. I have tried to subscribe to your blog and it tells me that I’m already subscribed but I am not receiving anything from you. I’ve checked my spam folder but nothing is appearing there either. Any ideas?

    Also, I’m wondering if you could give me any idea of how El Nino will be affecting Baja California this January? My family is contemplating a trip there in early January and I’m worried about the possibility of heavy rains. I’ve searched for weather models on-line but haven’t been able to find something for that area.
    Thanks much!

    • Hi Susan, I am not sure how to subscribe to my blog,,,,are you wanting notifications. I just assumed people will do what I do which is to bookmark the site and look at it whenever you want. As for January weather in Baja, it would be impossible to get a forecast that far out in time and it is still to early to use El Nino or La Nina to help you as we are not sure which will be true at this point. Generally, Baja weather is similar to San Diego weather which is impacted by the jet stream over California. If you want dependable weather in Mexico in Janary, go further south into Mexico like Puerto Villarta or Cancun and the Yukatan Peninsula where the northern jet stream has not effect. PV is a great city.

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    • Thanks for your comment. Where are you located? This coming week will be quite interesting for the Bay Area as the jet stream will be aimed at Central California and the Sierras which could add quite a bit of snow pack that is much needed to completely end our drought. The idea of notifications is an interesting idea, but I often revise the forecast several times per day. You may not be interested in minor forecast changes.


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