NWS Ocean Prediction Center

[Mar 24] Low pressure will rapidly intensify across Newfoundland into the North Atlantic tonight, forecast to generate hurricane-force winds with significant wave heights building to near 45 ft / 14 m. #MarineWx Latest Atlantic info: ocean.weather.gov/Atl_tab.php

[Mar 15] While the low pressure from yesterday has filled slightly today and is no longer producing hurricane-force winds, an elongated fetch of strong storm force winds are generating very high to phenomenal seas, last analyzed up to 16 meters / >50 ft. #MarineWx

24-hr difference seen via GOES-E Air Mass RGB satellite imagery, from a 991 mb low yesterday near Newfoundland, to now a sprawling 956 mb low pressure SE of Greenland. Widespread gale, storm, and hurricane-force winds continue this morning, with seas in excess of 40 ft. #MarineWx

Experimental week-2 probabilistic outlooks show active weather likely continuing across both ocean basins March 20-27, in particular across the N Atlantic with widespread gale and storm, to possible hurricane-force conditions. Details and more info here! ocean.weather.gov/week2/

[Mar 13] Low pressure nearing Newfoundland will rapidly intensify, broaden across the N Atlantic over the next 24 hours generating widespread storm to hurricane-force winds, building seas in excess of 40 ft #MarineWx Latest Atlc analysis/forecast info: ocean.weather.gov/Atl_tab.php

Check out the latest blog post "Blizzard Slams Northeast, Smashes Records", authored Chris Smith, the CISESS GOES-R Satellite Liaison for NWS WPC/OPC satelliteliaisonblog.wordpress.com/2026/03/02/bli…

[Feb 23] The latest briefing for the powerful low pressure affecting the mid-Atlantic and New England waters. Primary marine hazards continue with hurricane-force winds, building seas reaching 40+ ft #MarineWx

Low pressure last analyzed at 12z to 966 mb (41 mb decrease in 24 hrs) -- still producing hurricane-force winds, max seas analyzed to 10m (33 ft) but will continue building through the day. #MarineWx

[Feb 22] Latest briefing for the rapidly intensifying, developing hurricane-force low across the mid-Atlantic & New England ocean waters today thru Monday. Primary marine hazards: winds increasing to 55-70 kt, seas building from 12-24 ft w/peak significant waves reaching 40+ ft

Another potent storm-force low will advance off the East Coast Sunday night into Monday morning. Pictured is the forecast wind speed valid 7 AM Monday Morning, with wind speeds exceeding 55 kt! #MarineWx

As one hurricane-force low continues NE into the N Atlantic, the next impactful system is nearing the coast. Another rapidly intensifying, developing hurricane-force low is expected just east of the OPC offshore waters by late Sat night, w/widespread hazards across the wrn Atlc.

@NWSOPC's experimental high seas gridded forecasts are now live. This expands grid coverage of #wind speed, #wave heights & other #weather hazards across the North #Atlantic & North #Pacific oceans. Grids can be viewed at digital.weather.gov & graphical.weather.gov

@sperbe85873 Hello, here is the link to the NWS National Website: weather.gov

Here's the latest @NWSOPC 12Z #Atlantic Surface Analysis chart. Note the large and powerful hurricane force low situated south of #Greenland and northeast of #Newfoundland and #Labrador, #Canada.

A look at the @NWSOPC 12z #Atlantic #Sea-State analysis. Note the very high seas, up to 13 meters (roughly 43 feet), east of #Newfoundland and #Labrador, #Canada due to the powerful hurricane force low in the northern Atlantic.

The #AtlanticOcean is never still! Check out the 24 through 96 hour #Atlantic surface #forecast charts, showing the progression of the #weather over the next 4 days. Note active weather, with several strong systems tracking across the ocean. More info at ocean.weather.gov

The #GreatLakes #ice season has officially begun! The U.S. National Ice Center (#USNIC) has posted a short writeup on the start of ice growth. Check out the details: usicecenter.gov/PressRelease/G… #GreatLakesIce #IceSeason #NOAA

Merry Christmas and Happy Holidays from all of us at the Ocean Prediction Center!

While hurricane season is over, non-tropical lows can still bring hurricane force winds across parts of the Atlantic. So far this season, we are seeing a higher than average number pass through the basin. See the latest: ocean.weather.gov

Adding ASCAT overpasses, with returns in excess of 75 kt in the southern quadrant of the low. Significant wave heights (from CryoSat-2 and Sentinel-3A altimeters) show 200 nm swaths of phenomenal seas (>14m), with max up to 16.6 m / 54 ft. #SatWind #SatWave