A Wintry Mix of Precipiatation Will Cross the Great Lakes Thursday
Light to moderate precipitation will spread from the Great Lakes and Ohio Valley to the northeast and mid-Atlantic states Thursday and Friday. The unusually warm temperatures over the Great Plains will come to an end. The southwest and four corners states will become increasingly wet Thursday and Friday.
19NM S San Francisco CA
Marine Point Forecast [NOTICE]
- SynopsisTHE SURFACE PRESSURE GRADIENT WILL STRENGTHEN TODAY RESULTING IN
INCREASING NORTHWESTERLY WINDS. WINDS WILL BE STRONGEST TONIGHT
THROUGH EARLY SATURDAY MORNING...ESPECIALLY OVER THE OUTER WATERS.
THE SURFACE PRESSURE GRADIENT WILL WEAKEN ON SATURDAY PROMOTING
GENERALLY LIGHT WINDS THROUGH THE WEEKEND. A LONG PERIOD WESTERLY
SWELL WILL PASS THROUGH THE WATERS TODAY. THIS LONG PERIOD SWELL
WILL RESULT IN BREAKING WAVES AT REEFS AND SANDBARS ALONG THE
COAST TODAY...ESPECIALLY DURING TIMES OF LOW TIDE.
- Today Variable winds less than 5 kt becoming NW 5 to 10 kt in the morning. Mostly sunny. WNW swell 4 ft at 18 seconds. Wind waves around 1 ft.
- Tonight NW wind around 10 kt. Partly cloudy. WNW swell 4 ft at 17 seconds. Wind waves around 1 ft.
- Friday NW wind 8 to 11 kt. Mostly sunny. WNW swell 3 ft at 16 seconds. Wind waves around 1 ft.
- Friday Night NW wind 6 to 10 kt. Mostly cloudy, then gradually becoming clear. W swell 5 ft. Wind waves around 1 ft.
- Saturday Variable winds less than 5 kt becoming NNW 5 to 7 kt in the morning. Sunny. W swell 5 to 6 ft. Wind waves around 1 ft.
- Saturday Night WNW wind 6 to 8 kt. Mostly clear. WNW swell 4 to 5 ft. Wind waves around 1 ft.
- Sunday Variable winds 5 kt or less. Mostly sunny. WNW swell 4 ft. Wind waves around 1 ft.
- Sunday Night Variable winds 5 kt or less. Mostly cloudy. WNW swell 3 ft. Wind waves around 1 ft.
- Monday Variable winds 5 kt or less. Partly sunny. W swell 5 ft. Wind waves around 1 ft.
.....SAN FRANCISCO BAR/FOURFATHOM BANK FORECAST..... IN THE DEEP WATER CHANNEL...COMBINED SEAS 4 TO 5 FEET WITH A DOMINANT SWELL PERIOD OF 18 SECONDS. ACROSS THE BAR...COMBINED SEAS 5 TO 6 FEET WITH A DOMINANT SWELL PERIOD OF 18 SECONDS. MAXIMUM EBB CURRENT OF 2.1 KNOTS AT 11:19 AM THIS MORNING AND 1.1 KNOTS AT 12:02 AM EARLY FRIDAY MORNING.
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.
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.
HOURLY WEATHER GRAPH
NATIONAL DIGITAL FORECAST DATABASE