Altamaha Sound, GA to Fernandina Beach, FL 20 - 60 NM Marine Forecast
|Rest Of Today...East Winds 10 To 15 Knots. Seas 4 To 6 Feet With Occasional Seas Up To 8 Feet. Dominant Period 12 Seconds.|
|Tonight...East Winds 10 To 15 Knots. Seas 4 To 5 Feet With Occasional Seas Up To 6 Feet. Dominant Period 8 Seconds.|
|Monday...Northeast Winds 5 To 10 Knots. Seas 3 To 5 Feet With Occasional Seas Up To 6 Feet. Dominant Period 12 Seconds.|
|Monday Night...East Southeast Winds Around 5 Knots Becoming West Southwest After Midnight. Seas 3 To 5 Feet With Occasional Seas Up To 6 Feet. Dominant Period 11 Seconds.|
|Tuesday...West Winds 5 To 10 Knots Becoming South Southwest In The Afternoon. Seas 4 To 5 Feet With Occasional Seas Up To 6 Feet. Dominant Period 10 Seconds.|
|Tuesday Night...South Southwest Winds 10 To 15 Knots. Seas 4 To 5 Feet With Occasional Seas Up To 6 Feet.|
|Wednesday...South Southwest Winds 10 To 15 Knots. Seas 3 To 5 Feet With Occasional Seas Up To 6 Feet.|
|Wednesday Night...South Winds Around 15 Knots. Seas 4 To 5 Feet With Occasional Seas Up To 6 Feet.|
|Thursday...South Winds 10 To 15 Knots. Seas 3 To 4 Feet.|
AMZ400: Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm|
931 AM EDT Sun Sep 22 2019
Strong high pressure to the north will weaken today and drop south over the waters this week with light winds developing. A long period easterly swell will continue to move into the area from several tropical systems over the western Atlantic.
The approximate location of the west wall of the Gulf Stream as of Sep 21, 2019 at 1200 UTC...
- 57 nautical miles east of Flagler Beach.
- 63 nautical miles east of Saint Augustine Beach.
- 73 nautical miles east of Jacksonville Beach.
- 97 nautical miles east southeast of St Simons Island.
Area Forecast Discussion|
National Weather Service Jacksonville FL
957am EDT Sunday September 22 2019
...ONSHORE FLOW CONTINUES TO BRING HIGH RISK OF RIP CURRENTS THROUGH THIS AFTERNOON...
Light onshore flow will continue today. Surface high pressure centered near the outer banks of North Carolina will continue to move east and weaken slightly through tonight. Very dry air was visible in the morning sounding at JAX as precipitable water values were less than an inch. This subsidence will continue to keep most of the area rain free with just a slight chance of sprinkles along the NE FL coast as stratocumulus clouds move onshore.
Easterly onshore flow around the surface high to our north will continue breezy conditions 10-15 knots gusting to 20 knots along the immediate coastline with winds diminishing farther inland.
Intermittent clouds and onshore flow will keep high temps in the mid 80s at the beaches while inland areas rise into the upper 80s as less clouds allow for more sunshine and heating to take place.
Small Craft Advisory in effect for NE FL offshore waters with seas of 5 to 7 feet. Small Craft Exercise Caution for SE GA coastal and offshore waters where seas will range 4 to 6 feet.
High Risk for NE FL beaches. Moderate risk for SE GA beaches.
NOAA Jacksonville FL Office: Watches - Warnings - Advisories
FL...High Rip Current Risk until 6pm EDT this evening for Coastal Duval-Coastal Flagler-Coastal Nassau-Coastal St. Johns.
GA...None. AM...Small Craft Advisory until 5am EDT Monday for Waters from Fernandina Beach to St. Augustine FL from 20 to 60 NM- Waters from St. Augustine to Flagler Beach FL from 20 to 60 NM.