The short version of the forecast is that Southern Interior BC will have fine weather this Thanksgiving Weekend. Holiday Monday will be a good day to take a moment to be thankful for what you have as well as a comfortable walk outside.
However, the more detailed analysis shows that we are currently in a Northwesterly Flow at the 500mb level...and you can never trust a NWly flow.
Surface map this morning shows a weak area of high pressure over the central coast, while at the same time, a weak surface low off the the south coast. Circulation around these two features if jamming up some low level moisture (Cloud) over the southern interior this morning.
This situation will resolve itself today to bring a little sunshine into everyone's life in Southern BC.
Expect increasing cloud Fri evening as a trough to the south enjoys a brief period of influence ... until our new best friend, the Long Weekend Ridge builds in for Sunday and Monday bringing with it sunshine and seasonal or even slightly above temperatures.