Winter weather forecast for Rockies and southern Plains
A developing storm system will bring snow to parts of the Rockies and southern Plains on Friday, which will move into the central U.S. on Saturday. Freezing rain is also forecast from Texas to the mid-Mississippi Valley and into the Carolinas. Meanwhile, temperatures will be 20-40 degrees below normal across parts of the central and southern U.S. on Friday.
Hazardous Weather Conditions
30NM WNW San Francisco CA
Marine Point Forecast [NOTICE]
...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...
- SynopsisA STORM SYSTEM WILL APPROACH THE REGION TODAY RESULTING IN VERY
GUSTY NORTHERLY WINDS OVER COASTAL WATERS...INCLUDING BAYS. THE
GUSTY WINDS WILL PRODUCE HAZARDOUS CONDITIONS WITH STEEP WIND
WAVES AND FRESH SWELL. THE STORM SYSTEM WILL BRING A POSSIBILITY
OF SHOWERS AND THUNDERSTORMS TO THE COASTAL WATERS BEGINNING THIS
AFTERNOON LASTING INTO SATURDAY EVENING. WINDS WILL DECREASE AND
SEA CONDITIONS WILL IMPROVE FOR A MAJORITY OF THE WATERS BY
SATURDAY AFTERNOON AS THE CENTER OF THE STORM SYSTEM PASSES ALONG
THE CALIFORNIA COAST.
- Today NW wind around 23 kt, with gusts as high as 29 kt. A slight chance of showers after 1pm. WNW swell 6 ft at 9 seconds. Wind waves around 5 ft.
- Tonight NW wind 17 to 22 kt, with gusts as high as 28 kt. A chance of showers. WNW swell 6 ft at 9 seconds. Wind waves 5 ft subsiding to 2 ft.
- Saturday NNW wind 9 to 12 kt. A chance of showers, with thunderstorms also possible after 10am. WNW swell 5 ft at 9 seconds. Wind waves around 1 ft.
- Saturday Night NE wind around 8 kt. A slight chance of showers and thunderstorms. WNW swell 6 ft. Wind waves around 1 ft.
- Sunday NE wind around 7 kt becoming W in the morning. Sunny. WNW swell 6 ft. Wind waves around 1 ft.
- Sunday Night WNW wind 7 to 9 kt. Partly cloudy. WNW swell 5 to 6 ft. Wind waves around 1 ft.
- Monday WNW wind 8 to 12 kt. A slight chance of showers. WNW swell 5 ft. Wind waves around 1 ft.
- Monday Night NNW wind around 18 kt. A slight chance of showers. WNW swell 6 ft. Wind waves around 2 ft.
- Tuesday NW wind 10 to 14 kt. A slight chance of showers. WNW swell 5 to 6 ft. Wind waves 1 to 2 ft.
.....SAN FRANCISCO BAR/FOURFATHOM BANK FORECAST..... IN THE DEEP WATER CHANNEL...COMBINED SEAS 6 TO 8 FEET WITH A DOMINANT SWELL PERIOD OF 9 SECONDS. ACROSS THE BAR...COMBINED SEAS 7 TO 9 FEET WITH A DOMINANT SWELL PERIOD OF 9 SECONDS. MAXIMUM EBB CURRENT OF 1.6 KNOTS AT 10:47 AM FRIDAY AND 1.2 KNOTS AT 11:48 PM FRIDAY.
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