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Strong Pacific Storm System Bringing Heavy Rain, Mountain Snow and Strong Wind to California

Another Pacific storm system will bring a continued threat for heavy rain, very heavy mountain snow, and strong winds to California through Tuesday. The threat of flooding, landslides, and avalanches will create dangerous travel conditions in many parts of the state. In addition, downed trees and power lines could lead to scattered power outages. Read More >

Current conditions at

Half Moon Bay Airport (KHAF)

Lat: 37.5136°NLon: 122.4996°WElev: 65ft.

Fog

55°F

13°C

Humidity 94%
Wind Speed S 22 G 28 MPH
Barometer 29.90 in
Dewpoint 54°F (12°C)
Visibility 2.00 mi
Last update 20 Feb 2:35 am PST
Extended Forecast for

Half Moon Bay CA

Flood Watch until February 21, 04:00am
Wind Advisory until February 20, 01:00pm
High Wind Warning February 20, 01:00pm until February 21, 03:00am
Click here for hazard details and duration
Flood Watch
Wind Advisory
High Wind Warning
  •  
    Flood Watch until February 21, 04:00am
    Wind Advisory until February 20, 01:00pm

    NOW: Multiple
    hazards in effect

    Click HERE for Details

  • Overnight

    Overnight: Rain and possibly a thunderstorm. Some of the storms could produce heavy rainfall.  Low around 53. Windy, with a southeast wind around 30 mph, with gusts as high as 36 mph.  Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

    Heavy Rain
    and Windy

    Low: 53 °F

  • Washington's
    Birthday

    Washington's Birthday: Rain, with thunderstorms also possible after 4pm. Some of the storms could produce heavy rainfall.  High near 61. Windy, with a south southeast wind 30 to 39 mph, with gusts as high as 49 mph.  Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.

    Heavy Rain
    and Windy

    High: 61 °F

  • Monday
    Night

    Monday Night: Rain and possibly a thunderstorm before 10pm, then rain likely. Some of the storms could produce heavy rainfall.  Low around 53. Windy, with a southwest wind 35 to 40 mph decreasing to 29 to 34 mph after midnight. Winds could gust as high as 50 mph.  Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.

    Heavy Rain
    and Windy

    Low: 53 °F

  • Tuesday

    Tuesday: Rain likely and possibly a thunderstorm before 10am, then a chance of showers and thunderstorms after 10am.  Cloudy, with a high near 58. Breezy, with a west southwest wind 20 to 23 mph, with gusts as high as 29 mph.  Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Showers
    Likely and
    Breezy then
    Chance
    Showers

    High: 58 °F

  • Tuesday
    Night

    Tuesday Night: A 40 percent chance of showers.  Mostly cloudy, with a low around 45. Northwest wind 5 to 14 mph.  New precipitation amounts of less than a tenth of an inch possible.

    Chance
    Showers

    Low: 45 °F

  • Wednesday

    Wednesday: A 20 percent chance of showers.  Partly sunny, with a high near 53. New precipitation amounts of less than a tenth of an inch possible.

    Slight Chance
    Showers

    High: 53 °F

  • Wednesday
    Night

    Wednesday Night: Partly cloudy, with a low around 42. Breezy.

    Partly Cloudy
    and Breezy
    then Partly
    Cloudy

    Low: 42 °F

  • Thursday

    Thursday: Mostly sunny, with a high near 54.

    Mostly Sunny

    High: 54 °F

Detailed Forecast

Overnight
Rain and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Low around 53. Windy, with a southeast wind around 30 mph, with gusts as high as 36 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Washington's Birthday
Rain, with thunderstorms also possible after 4pm. Some of the storms could produce heavy rainfall. High near 61. Windy, with a south southeast wind 30 to 39 mph, with gusts as high as 49 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
Monday Night
Rain and possibly a thunderstorm before 10pm, then rain likely. Some of the storms could produce heavy rainfall. Low around 53. Windy, with a southwest wind 35 to 40 mph decreasing to 29 to 34 mph after midnight. Winds could gust as high as 50 mph. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.
Tuesday
Rain likely and possibly a thunderstorm before 10am, then a chance of showers and thunderstorms after 10am. Cloudy, with a high near 58. Breezy, with a west southwest wind 20 to 23 mph, with gusts as high as 29 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 45. Northwest wind 5 to 14 mph. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
A 20 percent chance of showers. Partly sunny, with a high near 53. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
Partly cloudy, with a low around 42. Breezy.
Thursday
Mostly sunny, with a high near 54.
Thursday Night
Partly cloudy, with a low around 42.
Friday
A slight chance of rain. Partly sunny, with a high near 54.
Friday Night
A chance of rain. Mostly cloudy, with a low around 44.
Saturday
A chance of rain. Mostly cloudy, with a high near 53.
Saturday Night
A slight chance of showers. Partly cloudy, with a low around 43.
Sunday
Mostly sunny, with a high near 55.
Click Map For Forecast
Point Forecast:
Half Moon Bay CA
 37.45°N 122.44°W (Elev. 43 ft)
1:39 am PST Feb 20, 2017
3am PST Feb 20, 2017-6pm PST Feb 26, 2017
 
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