The winter rains are finally back, thanks to a strong Pineapple Express storm system hitting the region through Monday.

The National Weather Service has put out a flash flood warning earlier today that will be in effect until late tonight.

We'll be tracking the storm's effects this weekend. Let us know if you see flooding, fallen trees or other hazards and we'll update this post so other readers can be aware. Email us at editor@hoodline.com, tweet to @HoodlineSF, or leave a comment below.

Here's the text from the NWS: