Oppressive heat and humidity building into the central and southeast U.S.
A heat wave is building into parts of the central and southeast U.S. this week. The combination of heat and humidity will lead to dangerous heat indices, especially in parts of the central Mississippi River Valley where an Excessive Heat Warning is in effect. Heat Advisories are in effect elsewhere across the region. Relief is not expected for several days.
Hazardous Weather Conditions
18NM N San Francisco CA
Marine Point Forecast [NOTICE]
- SynopsisMODERATE NORTHWESTERLY WINDS EXPECTED ACROSS THE NORTHERN OUTER
WATERS TONIGHT AND OVER PORTIONS OF SAN FRANCISCO BAY THIS
AFTERNOON. OTHERWISE GENERALLY LIGHT WINDS AND SEAS WILL
CONTINUE. A MODERATE PERIOD SOUTH SWELL WILL MOVE INTO THE REGION
LATER THIS WEEK DUE TO STORMS IN THE TROPICAL PACIFIC.
- Tonight SSW wind around 7 kt. Patchy fog after 11pm.
- Thursday Variable winds less than 5 kt becoming S 11 to 16 kt in the afternoon. Patchy fog before 11am.
- Thursday Night SW wind 5 to 10 kt becoming variable and less than 5 kt. Partly cloudy.
- Friday S wind 9 to 14 kt. Patchy fog before 11am.
- Friday Night WSW wind 5 to 11 kt. Mostly clear.
- Saturday Variable winds 5 kt or less. Sunny.
- Saturday Night SW wind 5 to 9 kt. Mostly clear.
- Sunday Variable winds 5 kt or less. Sunny.
- Sunday Night SW wind 6 to 9 kt. Mostly clear.
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