Snow Squalls May Impact New Year's Eve Travel from the Great Lakes to the Mid-Atlantic; Heavy Rain & Isolated Severe Thunderstorms in Southern California

Snow squalls are likely to cross the Lower Great Lakes this evening and the Ohio Valley through the interior Northeast/northern Mid-Atlantic overnight, before potentially reaching the I-95 corridor from D.C. to New York City early New Year’s Day morning. Heavy rain and isolated severe thunderstorms will impact coastal southern California including Los Angeles tonight into early on New Year's Day. Read More >

Hazardous Weather Conditions

Coastal Flood Advisory in effect from December 31, 05:00 AM PST until January 4, 02:00 PM PST

Current conditions at

Half Moon Bay Airport (KHAF)

Lat: 37.5136°NLon: 122.4996°WElev: 65.0ft.

haze

61°F

16°C

Humidity	72%
Wind Speed	SSE 4 MPH
Barometer	29.96 in (1014.56 mb)
Dewpoint	52°F (11°C)
Visibility	5.00 mi
Last update	31 Dec 11:55 AM PST

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

Half Moon Bay CA

Coastal Flood Advisory until January 4, 02:00pm

Click here for hazard details and duration

Coastal Flood Advisory

Coastal Flood Advisory until January 4, 02:00pm
NOW until 2:00pm Sun
Coastal Flood Advisory
This Afternoon
High: 55 °F
Rain
Tonight
Low: 53 °F
Rain
New Year's Day
High: 61 °F
Rain
Thursday Night
Low: 51 °F
Chance Rain
Friday
High: 62 °F
Rain Likely
Friday Night
Low: 53 °F
Rain and
Breezy
Saturday
High: 61 °F
Showers and
Breezy
Saturday Night
Low: 51 °F
Showers

Detailed Forecast

This Afternoon

Rain. Steady temperature around 55. East northeast wind 10 to 14 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

Tonight

Rain. Steady temperature around 53. East northeast wind 7 to 16 mph becoming south southeast after midnight. Winds could gust as high as 26 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.

New Year's Day

Rain. High near 61. South wind around 18 mph, with gusts as high as 28 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

Thursday Night

A 50 percent chance of rain, mainly after 3am. Mostly cloudy, with a low around 51. South wind 11 to 18 mph, with gusts as high as 25 mph. New precipitation amounts of less than a tenth of an inch possible.

Friday

Rain likely, mainly after 10am. Mostly cloudy, with a high near 62. South wind 16 to 21 mph, with gusts as high as 33 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

Friday Night

Rain. Low around 53. Breezy. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

Saturday

Rain before 10am, then showers and possibly a thunderstorm between 10am and 1pm, then rain after 1pm. High near 61. Breezy. Chance of precipitation is 90%.

Saturday Night

Showers and possibly a thunderstorm. Cloudy, with a low around 51.

Sunday

Rain. Cloudy, with a high near 59.

Sunday Night

Rain. Mostly cloudy, with a low around 49.

Monday

Rain. Mostly cloudy, with a high near 58.

Monday Night

Rain likely. Mostly cloudy, with a low around 47.

Tuesday

A chance of rain. Partly sunny, with a high near 58.