Make it snow with masking fluid and watercolor:  

Supplies:

* Winsor & Newton Cotman Dioxazine Violet

* Arches 140 lbs. Cold Pressed Paper

* a masking fluid - I use Tear Mender Fabric & Leather Repair Adhesive

Instructions:

Using an old toothbrush, spatter the masking fluid onto dry paper.  Clean the brush immediately. 

After the adhesive is dry, paint over the paper with the Violet color.  Allow to dry.

Gently rub off the adhesive spatters to reveal the falling "snow".

 Painting the effects of snow in a landscape:

 
Japanese Rock Garden by Janice Tingum
Original watercolor  4" x 6" unframed $75
Available at BoundlessGallery.com

See more City Scenes

In this painting, a soft blue color is used to create shadows on the white paper, creating the impression of snow.  Use shadows to:

1. Identify shapes of objects covered by snow

2. Show the direction of the light source

3. Emphasize the cool temperature

4. Establish mounds of snow, as in the foreground, and areas that are flat, such as the middle ground and on the frozen stream (barely visible) behind the largest rock formation.

5. Reflect the color of the sky

Note also the snow on the trees in the background.  If you forgot to preserve areas of white for snow on the trees, apply white gouache, white acrylic paint or a product such as Susan Scheewe White Texture Medium.  Remember to blend in a little blue for the shadow areas.