Dangerous Heat Wave from the Midwest to East Coast

A large ridge of high pressure extending from the Central to Eastern U.S. will deliver a dangerous summer heat wave through the weekend. Widespread excessive heat warnings and heat advisories already cover the Eastern two-thirds of the country. A number of record highs and overnight warm minimum temperatures are likely. Heat indices will surge past 100 degrees and approach the 110s. Heat Safety!
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19NM S San Francisco CA

Marine Point Forecast

[NOTICE]
  • Overnight

    Cloudy

    S 9kt
    4ft
  • Friday

    Decreasing Clouds

    S 16kt
    4ft
  • Friday
    Night

    Mostly Cloudy

    S 9kt
    3-4ft
  • Saturday

    Decreasing Clouds

    SSW 9kt
    3ft
  • Saturday
    Night

    Patchy Fog

    Light Wind
    3ft
  • Sunday

    Partly Sunny

    Light Wind
    3ft
  • Sunday
    Night

    Patchy Fog

    Light Wind
    3ft
  • Monday

    Partly Sunny

    Winds IncreasingW 7kt
    3ft
  • Monday
    Night

    Mostly Cloudy

    W 7ktWinds Decreasing
    3ft

Associated Zone Forecast which includes this point

Last Update: 3:20 pm PDT Jul 18, 2019
Forecast Valid: 12am PDT Jul 19, 2019-6pm PDT Jul 25, 2019

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Detailed Forecast


Synopsis: PZZ500-191515- 750 PM PDT Thu Jul 18 2019 .Synopsis for the Central California Coast and Bays Including the Monterey Bay...Greater Farallones...and Cordell Bank National Marine Sanctuaries... Split flow will develop overnight through Friday with light to locally moderate northwest winds in the northern outer waters and southerly winds along the coast. The sea state will continue to be dominated by steeper northwest wind waves mixed with a light long period southwest swell. $$

Overnight
S wind 5 to 9 kt. Cloudy. SW swell 1 ft at 17 seconds. Wind waves around 4 ft.
Friday
S wind 12 to 16 kt. Cloudy, then gradually becoming mostly sunny. SW swell 1 ft at 15 seconds. Wind waves around 4 ft.
Friday Night
S wind 7 to 9 kt. Mostly cloudy. SW swell 1 ft at 15 seconds. Wind waves 3 to 4 ft.
Saturday
SSW wind 5 to 9 kt. Cloudy, then gradually becoming mostly sunny. SW swell 1 ft. Wind waves around 3 ft.
Saturday Night
Variable winds 5 kt or less. Patchy fog between 2am and 4am. SW swell 1 ft. Wind waves around 3 ft.
Sunday
Variable winds 5 kt or less. Partly sunny. SW swell 1 ft becoming SSE. Wind waves around 3 ft.
Sunday Night
Variable winds 5 kt or less. Patchy fog after 11pm. SW swell 1 ft. Wind waves around 3 ft.
Monday
Variable winds less than 5 kt becoming W 5 to 7 kt in the afternoon. Partly sunny. SW swell 1 ft becoming S. Wind waves around 3 ft.
Monday Night
W wind 5 to 7 kt becoming variable and less than 5 kt in the evening. Mostly cloudy. SSE swell 1 ft becoming SW. Wind waves around 3 ft.

.....SAN FRANCISCO BAR/FOURFATHOM BANK FORECAST..... IN THE DEEP WATER CHANNEL...Southwest swell 3 to 4 ft with a dominant period of 15 seconds. ACROSS THE BAR...Southwest swell 4 to 5 ft with a dominant period of 15 seconds. Maximum ebb current of 2.8 kt at 06:49 AM Friday and 1.6 kt at 07:43 PM Friday.

*Notices:

  1. This forecast is for a single location. For safety concerns, mariners should be aware of the weather over a larger area. Forecast information for a larger area can be found within the zone forecast and the NDFD graphics.
  2. The forecast conditions at a particular point may not exceed the criteria of a Small Craft Advisory, Gale, Storm etc. These watches/warnings/advisories are issued for the entire zone in which the point resides and mariners should act accordingly.
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ABOUT THIS FORECAST

Point Forecast: 37.47°N 122.47°W
Last Update: 3:20 pm PDT Jul 18, 2019
Forecast Valid: 12am PDT Jul 19, 2019-6pm PDT Jul 25, 2019
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