


Offshore Forecast
Issued by NWS
Issued by NWS
335 FZNT34 KWBC 041429 OFFN32 Marine Weather HF Voice Broadcast NWS Ocean Prediction Center Washington DC 1029 AM EDT Thu Sep 4 2025 West central North Atlantic continental shelf and slope waters beyond 20 nm to 250 nm offshore, including south of Georges Bank from 1000 fm to 250 nm offshore. Conditions given represent the highest within that period. Seas given as significant wave height, which is the average height of the highest 1/3 of the waves. Individual waves may be more than twice the significant wave height. Locally higher winds and seas can be expected in and near tstms. .SYNOPSIS FOR MID ATLC WATERS...A front will be nearly stationary over and near the E waters today as weak low pressure centers move NE along the front. Meanwhile, high pressure will be located over the NW waters. The front should move slightly N as a warm front tonight and Fri as a cold front approaches the waters from the W. The slow-moving cold front weakens as it moves E into the waters Fri and Fri night, with the warm front passing off to the NE. Another, stronger cold front approaches the N waters from the W Sat, moves into the N and central waters Sat night and early Sun, and finally reaches the S waters late Sun and Sun night. The front will then become nearly stationary from SW to NE across the area for Mon and Mon night with weak low pressure centers moving NE along the front. High pressure builds into the NW waters behind the front. Hudson Canyon to Baltimore Canyon including the waters west of 39.3N 71.9W...SW to 37.7N 72.9W .TODAY...S winds 5 to 10 kt, becoming 5 to 15 kt. Seas 3 to 4 ft. .TONIGHT...S to SW winds 10 to 20 kt. Seas 3 to 5 ft. Scattered showers. .FRI...S winds 10 to 15 kt, increasing to 15 to 20 kt. Seas 3 to 5 ft. .FRI NIGHT...S winds 10 to 20 kt. Seas 3 to 5 ft. .SAT...S winds 10 to 20 kt. Seas 3 to 5 ft. .SAT NIGHT...S winds 10 to 20 kt, becoming W to SW 5 to 15 kt. Seas 3 to 5 ft. .SUN...N winds 5 to 15 kt, increasing to 10 to 20 kt. Seas 3 to 5 ft. .SUN NIGHT...N to NW winds 10 to 20 kt. Seas 3 to 5 ft. .MON...N to NE winds 10 to 20 kt, diminishing to 5 to 15 kt. Seas 3 to 5 ft. .MON NIGHT...NE winds 10 to 20 kt. Seas 3 to 5 ft. Baltimore Canyon to the Hague Line south of 1000 fm .TODAY...Variable winds less than 10 kt. Seas 3 to 5 ft. Isolated showers and tstms. .TONIGHT...S to SW winds 5 to 15 kt. Seas 3 to 5 ft. Scattered tstms and isolated showers with vsby 1 nm or less. .FRI...S winds 5 to 15 kt. Seas 3 to 5 ft. Scattered showers and tstms. .FRI NIGHT...S winds 5 to 15 kt. Seas 3 to 4 ft. Scattered showers and tstms. .SAT...S to SE winds 15 to 25 kt. Seas 3 to 5 ft. .SAT NIGHT...S to SW winds 20 to 30 kt. Seas 4 to 7 ft. .SUN...S to SW winds 15 to 25 kt. Seas 4 to 7 ft. .SUN NIGHT...SW winds 15 to 25 kt. Seas 4 to 7 ft. .MON...N to NE winds 15 to 25 kt. Seas 4 to 7 ft. .MON NIGHT...N to NE winds 15 to 25 kt. Seas 4 to 7 ft. Baltimore Canyon to Hatteras Canyon out to 36N 70W to 34N 71W .TODAY...Variable winds less than 10 kt, becoming S 10 to 20 kt. Seas 3 to 5 ft. Isolated showers and tstms. .TONIGHT...S to SW winds 10 to 20 kt. Seas 3 to 5 ft. Scattered showers and tstms. .FRI...S to SW winds 5 to 15 kt, becoming S 10 to 20 kt. Seas 3 to 4 ft. Scattered showers and tstms. .FRI NIGHT...S winds 10 to 20 kt, diminishing to 5 to 15 kt. Seas 3 to 4 ft. Scattered showers and tstms. .SAT...S winds 10 to 20 kt. Seas 3 to 5 ft. .SAT NIGHT...S to SW winds 15 to 25 kt. Seas 4 to 7 ft. .SUN...S to SW winds 10 to 20 kt. Seas 4 to 7 ft. .SUN NIGHT...S winds 10 to 20 kt, becoming N to NE 15 to 25 kt. Seas 3 to 6 ft. .MON...NE winds 20 to 30 kt. Seas 5 to 8 ft. .MON NIGHT...NE winds 20 to 30 kt. Seas 5 to 9 ft. Hatteras Canyon to Cape Fear out to 34N 71W to 32N 73W .TODAY...Variable winds less than 10 kt. Seas 3 to 5 ft. Isolated showers and tstms. .TONIGHT...S winds 5 to 15 kt, becoming variable. Seas 3 to 5 ft. Scattered showers and tstms. .FRI...E winds less than 10 kt, becoming E to SE. Seas 3 to 4 ft. Scattered showers and tstms. .FRI NIGHT...S to SE winds 5 to 15 kt. Seas 3 to 4 ft. Numerous showers and scattered tstms. .SAT...S winds 15 to 25 kt. Seas 3 to 6 ft. .SAT NIGHT...S winds 15 to 25 kt. Seas 4 to 7 ft. .SUN...S to SW winds 10 to 20 kt, becoming S 5 to 15 kt. Seas 3 to 6 ft. .SUN NIGHT...S winds 10 to 20 kt, becoming NE. Seas 3 to 6 ft. .MON...NE winds 20 to 30 kt. Seas 6 to 10 ft. .MON NIGHT...NE winds 20 to 30 kt. Seas 6 to 10 ft. Cape Fear to 31N out to 32N 73W to 31N 74W .TODAY...E to NE winds less than 10 kt. Seas 3 to 5 ft. Isolated showers and tstms. .TONIGHT...E to SE winds less than 10 kt. Seas 3 to 4 ft. Scattered showers and tstms. .FRI...E winds 5 to 15 kt. Seas 3 to 4 ft. Scattered showers and tstms. .FRI NIGHT...S to SE winds 5 to 15 kt, becoming S 10 to 20 kt. Seas 3 to 6 ft. Numerous showers and scattered tstms. .SAT...S winds 10 to 20 kt. Seas 3 to 6 ft. .SAT NIGHT...S to SW winds 10 to 20 kt. Seas 3 to 6 ft. .SUN...S to SW winds 5 to 15 kt. Seas 3 to 5 ft. .SUN NIGHT...S to SE winds 10 to 20 kt, becoming NE. Seas 3 to 4 ft. .MON...NE winds 20 to 30 kt. Seas 5 to 9 ft. .MON NIGHT...NE winds 20 to 30 kt. Seas 6 to 11 ft. .Forecaster Joseph. Ocean Prediction Center.