Lake-effect Snow and Whiteout Conditions in the Great Lakes Region; Below-average Temperatures in the East

Heavy lake-effect and lake-enhanced snow will persist downwind of the Great Lakes and produce some whiteout conditions that could cause difficult travel conditions. A coastal low will produce moderate to heavy snow over parts of southern and eastern New England into the afternoon. Below average temperatures are expected across the eastern U.S., particularly with chilly morning temperatures. Read More >

Hazardous Weather Conditions

Small Craft Advisory in effect from January 20, 07:00 AM CST until January 21, 09:00 AM CST

For More Weather Information:

Tampa Bay, FL Local Forecast Office

2NM NNW Johns Pass FL

Marine Point Forecast

[NOTICE]

Today
High: 63 °F
NE 13kt
1ft
Tonight
Low: 50 °F
NE 12kt
1ft
Wednesday
High: 70 °F
NE 10kt
< 1ft
Wednesday Night
Low: 58 °F
NE 8kt
< 1ft
Thursday
High: 71 °F
NE 7kt
< 1ft
Thursday Night
Low: 60 °F
NNE 6kt
< 1ft
Friday
High: 73 °F
ENE 6kt
< 1ft
Friday Night
Low: 61 °F
Light Wind
< 1ft
Saturday
High: 72 °F
S 9kt
< 1ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 7:16 am CST Jan 20, 2026
Forecast Valid: 7am CST Jan 20, 2026-6pm CST Jan 26, 2026

View Nearby Observations

Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT THROUGH WEDNESDAY MORNING...

Today

NE wind around 13 kt. Sunny. Seas around 1 ft.

Tonight

NE wind 10 to 12 kt, with gusts as high as 19 kt. Mostly clear. Seas around 1 ft.

Wednesday

NE wind 8 to 10 kt. Partly sunny. Seas 1 ft or less.

Wednesday Night

NE wind 6 to 8 kt. Mostly cloudy. Seas 1 ft or less.

Thursday

NE wind around 7 kt. A slight chance of showers. Seas 1 ft or less.

Thursday Night

NNE wind around 6 kt becoming E after midnight. Partly cloudy. Seas 1 ft or less.

Friday

E wind around 6 kt becoming NW in the afternoon. Mostly sunny. Seas 1 ft or less.

Friday Night

Variable winds 5 kt or less. Partly cloudy. Seas 1 ft or less.

Saturday

E wind 5 to 9 kt becoming SSW in the afternoon. Mostly sunny. Seas 1 ft or less.

*Notices:

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.