WEATHER SUMMARY FOR SOUTHERN OREGON AND NORTHERN CALIFORNIA There is no doubt at all that the next round of arctic air is arriving in our area today. Highs today and tomorrow are going to struggle to reach the 30s east of the Cascades. West of the Cascades we will see a cool down for today, and then cooler still for tomorrow. Our high yesterday in Medford was 63. Today we should see 55, and then tomorrow it looks like 50. Overnight lows for the next three nights are going to be the coldest we have seen yet this season. Look for 20s in Medford, upper 20s to the low 30s for Douglas County and back over towards the Coast. Frost and Freeze bulletins are up for these areas and likely will remain up for the overnight and morning hours through Tuesday morning at this point. These bulletins do not cover any other areas of Southwest Oregon like Jackson County because we have already had the conditions that ended the growing season. I have been asked about the potential for fog and freezing fog for the valleys. The air coming in is very cold and it is also dry. In addition the atmospheric set up does not create a capping inversion so no big fog worries here. There could be isolated pockets of it especially in Douglas County, but little to worry about elsewhere. The arrival of the cold air and the front preceding it will also give us a break until at least Tuesday night before we see our next weather maker. Look for sunny skies with cold starts to our mornings. We can expect a system to come in Tuesday night into Wednesday morning. It is looking like it might produce a fair amount of wind with it as it approaches. It also looks like it will generate a good shot of rain for the valleys with mountains snows. Snow levels look low enough to affect the Cascades for sure, and might be low enough to impact the Siskiyous and I 5 this time. The big issue here is working out the exact timing of when it arrives, and how erosion of the cold air might we see. Both will factor in for snow on the Siskiyou Summit. That system will go through, and then we have a break ahead of the next system coming in for next weekend. That one will be a full on storm generating a lot of wind, rain, and very significant mountains snows. It also will be the harbinger of things to follow it as the week of Thanksgiving is now looking to be as stormy as the Climatology Center forecasters were predicting it was going to be over a week ago now. If you have travel plans of any kind for Thanksgiving, it is looking like you better plan on weather impacts, especially for those driving. You know who this is good news for? Anybody who is a winter sports enthusiast. Looks like the building of our snowpack to get the plays areas covered and the ski areas locally open is going to happen.
Posted on: Sat, 15 Nov 2014 19:47:14 +0000
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