Heavy precipitation for parts of the Pacific Northwest

Moisture will continue to stream into the Pacific Northwest for the next several days. Heavy rain will continue along the coast, while heavy snow will impact the highest elevations of the Cascades. In the northern Plains and Upper Great Lakes, more arctic air will bring periods of snow, blustery winds and cold wind chills. Light snow is also possible in New England and the Ohio Valley.

Last Update: 143 PM PST Mon Nov 20 2017

View Nearby Observations

5NM ESE San Francisco CA

Marine Zone Forecast

Synopsis: PZZ500-210615- 143 PM PST Mon Nov 20 2017 .Synopsis for the Central California Coast and Bays Including the Monterey Bay...Greater Farallones...and Cordell Bank National Marine Sanctuaries... As a high pressure ridge builds from the south, southerly winds will decrease beginning this evening. A split windflow pattern will occur Tuesday, where winds will blow out of the north over the southern waters and out of the south over the northern waters, remaining light to moderate. Another storm system will skirt the northern waters by Thursday or Friday and possibly last through the weekend. Seas are expected to remain light to moderate through Tuesday, then slightly increase for the remainder of the week as west/northwest swell increases. $$

N winds 5 kt.
NE winds 5 kt...becoming NW in the afternoon.
Tue Night
N winds 10 kt.
NW winds 10 kt.
Wed Night
NW winds 10 kt.
Thanksgiving Day
N winds 5 to 15 kt.
N winds 5 kt.
S winds 10 kt.
  Click Map For Detailed Forecast


Last Update: 143 PM PST Mon Nov 20 2017
  Forecast Discussion


Link to Local Radar Data Link to Satellite Data