National Weather Service United States Department of Commerce

Rain Spreads Across the Eastern U.S. as Snow Moves Into the Great Lake States

Strong low pressure will move from the south to the Great Lake States Monday and Tuesday. A warm front will spread rain along the eastern seaboard while snow moves into the Great Lake States. Heavy snow is also expected across the northern Rocky Mountains and higher elevations of the Pacific Northwest.
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3NM S Boca Grande FL

Marine Point Forecast [NOTICE]

This
Afternoon

Slight Chc Thunderstorms

S 18kt
< 1ft

High: 80 °F

Small Craft Advisory
Small Craft Advisory

Tonight

Slight Chc Thunderstorms

S 17kt
< 1ft

Low: 70 °F

Small Craft Advisory
Small Craft Advisory

Monday

Patchy Fog

S 9kt
< 1ft

High: 81 °F

Monday
Night

Chance Showers

Light Wind
< 1ft

Low: 69 °F

Tuesday

Showers Likely

Light Wind
< 1ft

High: 79 °F

Tuesday
Night

Showers Likely

Winds IncreasingN 9kt
< 1ft

Low: 69 °F

Wednesday

Showers Likely

N 16kt
< 1ft

High: 69 °F

Wednesday
Night

Partly Cloudy

N 16kt
< 1ft

Low: 53 °F

Thanksgiving
Day

Sunny

NNE 13kt
< 1ft

High: 65 °F

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 2:03 pm EST Nov 23, 2014
Forecast Valid: 4pm EST Nov 23, 2014-6pm EST Nov 29, 2014

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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 TIGHT PRESSURE GRADIENT BETWEEN HIGH PRESSURE OFF THE MID-ATLANTIC COAST AND A DEVELOPING AREA OF LOW PRESSURE AND WARM FRONT OVER THE GULF OF MEXICO WILL CONTINUE TO PRODUCE GUSTY SOUTHEAST TO SOUTH WINDS ACROSS THE COASTAL WATERS TODAY. WINDS AND SEAS WILL DROP BELOW CAUTIONARY LEVELS TONIGHT AND MONDAY OUT AHEAD OF AN APPROACHING COLD FRONT. IN THE WAKE OF THIS FRONT...THE WINDS WILL SHIFT TO THE NORTH AND INCREASE ONCE AGAIN TO ADVISORY LEVELS TUESDAY INTO WEDNESDAY.
  • This Afternoon S wind around 18 kt. A slight chance of showers and thunderstorms. Seas 1 ft or less.
  • Tonight S wind 7 to 17 kt. A slight chance of showers and thunderstorms before 7pm. Patchy fog after 7pm. Seas 1 ft or less.
  • Monday S wind 7 to 9 kt. Patchy fog. Seas 1 ft or less.
  • Monday Night Variable winds 5 kt or less. A chance of showers, mainly after 1am. Seas 1 ft or less.
  • Tuesday Variable winds 5 kt or less. Showers likely and possibly a thunderstorm. Seas 1 ft or less.
  • Tuesday Night Variable winds less than 5 kt becoming N 5 to 9 kt in the evening. Showers likely. Seas 1 ft or less.
  • Wednesday N wind 9 to 16 kt, with gusts as high as 23 kt. Showers likely and possibly a thunderstorm. Seas 1 ft or less.
  • Wednesday Night N wind 13 to 16 kt, with gusts as high as 22 kt. Partly cloudy. Seas 1 ft or less.
  • Thanksgiving Day NNE wind around 13 kt. Sunny. 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.