Snow, Blowing Snow, and Dangerous Wind Chills from the North Plains to the Northeast

A powerful storm system will moving northeast and offshore later Sunday. An upper level low will continue producing snow and blowing snow from the Upper Midwest to the Northeast, especially, downwind of the Great Lakes. Bitterly cold air will plunge into the Plains following this system, with wind chills as cold as -40 degrees.
Read More...

Last Update: 157 PM PST Sat Jan 18 2020

View Nearby Observations

12NM SW San Francisco CA

Marine Zone Forecast


...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH SUNDAY AFTERNOON...
Synopsis: PZZ500-191045- 157 PM PST Sat Jan 18 2020 .Synopsis for the Central California Coast and Bays Including the Monterey Bay...Greater Farallones...and Cordell Bank National Marine Sanctuaries... High pressure over the Great Basin will maintain generally light to moderate offshore winds across the coastal waters through Sunday. Winds will turn southerly and increase by Monday morning ahead of an approaching frontal system. A moderate northwest swell will arrive late Saturday and Sunday while a larger northwest swell arrives the middle of next week. $$

Tonight
NE winds 10 to 20 kt with gusts up to 25 kt. Wind waves 3 to 4 ft. W swell 5 to 7 ft at 16 seconds, increasing to 8 to 10 ft at 16 seconds after midnight.
Sun
E winds 5 to 15 kt. Wind waves 1 to 2 ft. W swell 8 to 10 ft at 16 seconds.
Sun Night
SE winds up to 10 kt. Wind waves 1 ft. W swell 7 to 9 ft at 14 seconds.
Martin Luther King Jr Day
SW winds around 5 kt. Wind waves 1 ft. W swell 6 to 8 ft at 13 seconds. A slight chance of rain.
Mon Night
S winds 10 to 20 kt with gusts up to 25 kt. Wind waves 3 to 4 ft. W swell 8 to 10 ft at 18 seconds. Rain.
Tue
S winds 15 to 25 kt with gusts up to 30 kt. Wind waves 1 to 2 ft. W swell 9 to 11 ft at 16 seconds. Rain.
Tue Night
NW winds around 5 kt. Wind waves 1 ft. W swell 13 to 15 ft at 16 seconds.
Wed
NW winds up to 10 kt. Wind waves 1 ft. W swell 8 to 10 ft.
Thu
NW winds up to 10 kt. Wind waves 1 ft. W swell 5 to 7 ft. .....san francisco bar/fourfathom bank forecast..... in the deep water channel...seas 4 to 6 ft with a dominant period of 11 seconds. across the bar...seas 5 to 7 ft with a dominant period of 11 seconds. Maximum ebb current of 1.8 kt at 11:19 pm saturday and 3.0 kt at 11:49 am sunday.
  Click Map For Detailed Forecast

ABOUT THIS FORECAST

Last Update: 157 PM PST Sat Jan 18 2020
  Forecast Discussion
   

RADAR & SATELLITE IMAGES

Link to Local Radar Data Link to Satellite Data