National Weather Service United States Department of Commerce

Strong storm system to bring unsettled weather from Gulf Coast to Great Lakes through Wednesday

A strong storm system will bring potential for severe weather, heavy rainfall and flooding, and heavy snow from the Gulf Coast to the Great Lakes through Wednesday. Severe storms are possible Tuesday across the Gulf Coast states with damaging winds as the primary threat, however a tornadoes cannot be ruled out. Flash flooding is also possible across parts of the Southeast through Wednesday.
Read More...

Hazardous Weather Conditions

3NM S Boca Grande FL

Marine Point Forecast [NOTICE]

Overnight

Partly Cloudy

SSE 9kt
< 1ft

Low: 66 °F

Tuesday

Partly Sunny

SE 12kt
< 1ft

High: 77 °F

Tuesday
Night

Chance Showers

SSE 12kt
< 1ft

Low: 68 °F

Wednesday

Thunderstorms Likely

S 18kt
< 1ft

High: 77 °F

Wednesday
Night

Showers Likely

SSW 14kt
< 1ft

Low: 66 °F

Christmas
Day

Partly Sunny

NNW 12kt
< 1ft

High: 69 °F

Thursday
Night

Partly Cloudy

N 10kt
< 1ft

Low: 56 °F

Friday

Mostly Sunny

ENE 10kt
< 1ft

High: 71 °F

Friday
Night

Mostly Cloudy

ENE 8kt
< 1ft

Low: 63 °F

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 5:19 pm EST Dec 22, 2014
Forecast Valid: 12am EST Dec 23, 2014-6pm EST Dec 29, 2014

View Nearby Observations

Detailed Forecast

IMPORTANT NOTICE TO MARINERS...MARINE FORECASTS ARE ISSUED AT LEAST FOUR TIMES A DAY. BOATERS ON EXTENDED TRIPS SHOULD ROUTINELY MONITOR SUBSEQUENT FORECAST ISSUANCES AND UPDATES FOR THE LATEST MARINE WEATHER INFORMATION. THE WAVE HEIGHTS ARE FORECAST AS SIGNIFICANT WAVE HEIGHT WHICH IS THE AVERAGE OF THE HIGHEST ONE-THIRD OF THE WAVES. THE HIGHEST WAVES MAY RARELY BE TWICE THE SIGNIFICANT WAVE HEIGHT. THE WINDS AND SEAS NEAR THUNDERSTORMS MAY BE HIGHER THAN FORECAST.

  • SynopsisA FRONTAL BOUNDARY DRAPED OVER THE NORTHERN GULF WILL KEEP SHOWERS AND A FEW THUNDERSTORMS POSSIBLE ACROSS THE WATERS WITH THE BEST CHANCES NORTH. SOME PATCHY SEA FOG MAY BE POSSIBLE ACROSS THE WATERS WITH THE WARM SOUTHERLY FLOW IN PLACE. A STRONG COLD FRONT WILL THEN MOVE THROUGH THE AREA WEDNESDAY THROUGH WEDNESDAY NIGHT BRINGING STRONG SHOWERS AND THUNDERSTORMS ALONG WITH INCREASED WINDS AND SEAS. HIGH PRESSURE WILL THEN BUILD INTO THE REGION THROUGH THE END OF THE WEEK. WINDS AND SEAS GRADUALLY SUBSIDING LATE FRIDAY INTO THE WEEKEND.
  • Overnight SSE wind 7 to 9 kt. Partly cloudy. Seas 1 ft or less.
  • Tuesday SE wind 9 to 12 kt. Partly sunny. Seas 1 ft or less.
  • Tuesday Night SSE wind 10 to 12 kt. A chance of showers and thunderstorms after 1am. Patchy fog after 1am. Seas 1 ft or less.
  • Wednesday S wind 13 to 18 kt, with gusts as high as 25 kt. Showers and thunderstorms likely, mainly after 1pm. Patchy fog. Seas 1 ft or less.
  • Wednesday Night SSW wind 11 to 14 kt becoming NW after midnight. Winds could gust as high as 20 kt. Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Seas 1 ft or less.
  • Christmas Day NNW wind around 12 kt. Partly sunny. Seas 1 ft or less.
  • Thursday Night N wind around 10 kt. Partly cloudy. Seas 1 ft or less.
  • Friday ENE wind 7 to 10 kt. Mostly sunny. Seas 1 ft or less.
  • Friday Night ENE wind around 8 kt. Mostly cloudy. Seas 1 ft or less.
*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.