Synopsis:
Currently, an upper-level trough stationed over much of Northern US and well into Canada. There are northwesterly winds advecting cold polar air to the region. Over the next 24 hours, the trough will deepen with height fall from cold air advection increasing with height. During the day, it will be very windy.
Wednesday Night
![](https://you.stonybrook.edu/weather/files/2015/09/clr-night-sac2-2lgjmem.jpg)
Low
Consistent wind throughout the night.
%
Chance of Rain
Thursday
![](https://you.stonybrook.edu/weather/files/2015/09/incrcld-day-sac-1pmrmwj.jpg)
High
Sunny and temperatures in the upper 40s
%
Chance of Rain
Thursday Night
![](https://you.stonybrook.edu/weather/files/2015/09/calm-night-roth-t3m7jw.jpg)
Low
Low temperature and moisture content. No lifting mechanism for rain either.
%
Chance of Rain
Friday
![](https://you.stonybrook.edu/weather/files/2015/09/partcld-day-sac-1izcu29.jpg)
High
Temperatures decreasing, winds fluctuate from low to high 10
%
Chance of Rain
Friday Night
![](https://you.stonybrook.edu/weather/files/2015/09/calm-night-roth-t3m7jw.jpg)
Low
Cold, no moisture for rain. No instability and very low winds
%