Ocean Prediction Center - Atlantic Marine

Hurricane Force Warnings in Effect	Atlantic: High Seas	Pacific: High Seas EP1 and EPI
Hurricane Force Conditions Possible

Atlantic Weather

Pacific Weather

Alaska/Arctic Weather

Analysis – Graphical Forecasts – Text Forecasts – Iceberg Analysis/Outlook – Hazards – Gridded – Other Marine

Atlantic Analysis

Click on the map below or choose from:
W Atlantic	Full Atlantic	E Atlantic

Surface Analysis
W Atlantic Loop: [3] [7] [14] Days		E Atlantic Loop: [3] [7] [14] Days
Updated: Wed, 18-Sep-2019 09:25:06 UTC		Updated: Wed, 18-Sep-2019 09:25:06 UTC


Wind and Wave Analysis	Sea State Analysis
Loop: [3] [7] [14] Days	Loop: [3] [7] [14] Days
Updated: Wed, 18-Sep-2019 06:35:52 UTC	Updated: Tue, 17-Sep-2019 13:21:19 UTC

Atlantic Graphical Forecasts


24-hour 500 mb	48-hour 500 mb	72-hour 500 mb	96-hour 500 mb
Loop: [3] [7] [14] Days	Loop: [3] [7] [14] Days	Loop: [3] [7] [14] Days	Loop: [3] [7] [14] Days
Updated: Wed, 18-Sep-2019 04:00:21 UTC	Updated: Wed, 18-Sep-2019 04:02:42 UTC	Updated: Tue, 17-Sep-2019 17:28:47 UTC	Updated: Tue, 17-Sep-2019 17:30:36 UTC
More 500 MB images	More 500 MB images	More 500 MB images	More 500 MB images


24-hour surface	48-hour surface	72-hour surface	96-hour surface
Loop: [3] [7] [14] Days	Loop: [3] [7] [14] Days	Loop: [3] [7] [14] Days	Loop: [3] [7] [14] Days
Updated: Wed, 18-Sep-2019 05:03:53 UTC	Updated: Wed, 18-Sep-2019 06:16:46 UTC	Updated: Tue, 17-Sep-2019 18:46:01 UTC	Updated: Tue, 17-Sep-2019 16:04:19 UTC


24-hour wind & wave	48-hour wind & wave	72-hour wind & wave	96-hour wind & wave
Loop: [3] [7] [14] Days	Loop: [3] [7] [14] Days	Loop: [3] [7] [14] Days	Loop: [3] [7] [14] Days
Updated: Wed, 18-Sep-2019 05:34:58 UTC	Updated: Wed, 18-Sep-2019 06:34:00 UTC	Updated: Tue, 17-Sep-2019 19:31:52 UTC	Updated: Tue, 17-Sep-2019 16:48:07 UTC


24-hour wave period & direction	48-hour wave period & direction	72-hour wave period & direction	96-hour wave period & direction
Loop: [3] [7] [14] Days	Loop: [3] [7] [14] Days	Loop: [3] [7] [14] Days	Loop: [3] [7] [14] Days
Updated: Wed, 18-Sep-2019 05:00:03 UTC	Updated: Wed, 18-Sep-2019 04:57:31 UTC	Updated: Wed, 18-Sep-2019 04:59:02 UTC	Updated: Wed, 18-Sep-2019 04:56:10 UTC

Atlantic Text Forecasts

Marine Weather Discussion
description

North Atlantic Ocean

Updated: Wed, 18-Sep-2019 08:24:34 UTC

Offshore Waters Forecasts
description

Live Map

New England continental shelf and slope waters

Updated: Wed, 18-Sep-2019 08:43:11 UTC

West Central North Atlantic continental shelf and slope waters

Updated: Wed, 18-Sep-2019 08:50:29 UTC

NAVTEX Coastal & Offshore Waters Forecasts
description

NOTICE – NOTICE – NOTICE – NOTICE
September 11, 2019 - The U.S. Coast Guard requests feedback on a proposal to migrate medium frequency NAVTEX broadcasts to satellite.
NWS Public Information Statement – Federal Register Notice – Submit comments via the Federal eRulemaking Portal on or before November 19, 2019.
NOTICE – NOTICE – NOTICE – NOTICE

Live Map

Boston, MA: Eastport, ME to South of New England

Updated: Wed, 18-Sep-2019 09:01:29 UTC

Portsmouth, VA: Sandy Hook, NJ to Murrells Inlet, SC

Updated: Wed, 18-Sep-2019 09:02:25 UTC

Charleston, SC: Murrells Inlet, SC to Flagler Beach, FL

Updated: Wed, 18-Sep-2019 09:02:38 UTC

High Frequency Voice Broadcast for Offshore Waters (VOBRA)
description

Live Map

New England continental shelf and slope waters

Updated: Wed, 18-Sep-2019 08:44:00 UTC

West Central North Atlantic continental shelf and slope waters

Updated: Wed, 18-Sep-2019 08:51:32 UTC

High Seas Forecast
description

North Atlantic Ocean (Metarea IV)

Updated: Wed, 18-Sep-2019 10:44:48 UTC

Atlantic Iceberg Analysis and Outlook Products

North American Ice Service (NAIS) Products - Courtesy of the U.S. Coast Guard International Ice Patrol

NAIS Iceberg Chart

NAIS Weekly Iceberg Outlook (pdf)
NAIS outlooks are typically updated on Wednesday.

Atlantic Hazard Products


Lightning Strike Density
Updated: Wed, 18-Sep-2019 11:47:22 UTC

Experimental Freezing Spray Guidance

12-hour Icing	24-hour Icing	36-hour Icing
Updated: Wed, 18-Sep-2019 04:12:19 UTC	Updated: Wed, 18-Sep-2019 04:17:08 UTC	Updated: Wed, 18-Sep-2019 04:22:05 UTC

Atlantic Gridded Marine Products

OPC gridded marine products on the National Digital Forecast Database (NDFD)

OPC gridded marine products are available in the National Digital Forecast Database (NDFD)

Other Atlantic Marine Products


Other NWS Marine Forecasts Includes Tropcial Analysis & Forecasts	Multinational Text Products