Tonight at 10 PM: Cesar Millan, the Dog Whisperer, teaches me how to be the pack leader and works with my dogs Stormy and Breezy on NBC Action News!
Good morning bloggers,
Snow! The snowflake contest begins in one week. Be sure to watch NBC Action News for details one week from today. Are you ready for that first chance of snow? Well, it isn't showing up yet.
The entire weather pattern is going through a massive transition right now. We won't be feeling any of the affects of this change for a little while longer. Look below at the GFS forecast from last nights 06z model run. The two maps are for 7 days and 10 days from now:

The above map is valid early next Friday morning. It is a 168 hour forecast and I am only showing this because there are massive changes showing up. The weather pattern may look similar to this late next week, but there are many errors in this forecast so I am not showing you this today for any specific forecasting reasons. I am just showing you this, and the map below to explain the changes that are taking place. We believe that the weather pattern that is going to affect us for the next year will begin developing and "showing" up during the next two to six weeks. The new LRC is about to form. On the above map there is a strengthening Pacific jetstream. The jetstream is up around 30,000 feet above the surface of the earth. This is where the strongest winds develop in the troposphere are become one of the driving forces to the storm systems in the mid-latitudes, the westerlies. The strong winds are generated as temperature contrasts strengthen. During the next few months it will get colder and colder from the North Pole southward eventually reaching our region. The temperature extremes that develop create powerful jetstreams that buckle and help produce storm systems. During the summer the temperature contrasts are weak and the jetstream retreats north and weakens, but still exists. And, then as we move through September into October the winds aloft strengthen considerably. The new LRC begins forming and we are about to experience a unique weather pattern that has never existed before. This is something we will go into more detail later in the season.
Look below at the 240 hour forecast (10 days from now). The GFS and other models have varying solutions on how the flow will buckle. I wouldn't spend more than 5 seconds analyzing the map below because it is likely very wrong with many errors. The new data coming out right now likely has a very different solution. But, one thing stands out. The weather pattern that has existed since last October is being wiped out by these massive changes.

If the above map ends up somewhat correct then there would be snow in the mountains around Lake Tahoe as a strong storm plows into the west. But, as I said this will likely look very different as the pattern is in transition.
In the mean time, we have some more September warmth heading our way. Have a fantastic day. I am going to Las Vegas tomorrow for the Mr. Olympia fitness expo, so I will be gone a few days after tonights newscast with the Dog Whisperer.
Gary