Lee Chesneau's Marine Weather

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Announcements

	Read Lee's new article 'Derechos' in the Spinsheet!
	Click here to watch Lee Chesneau's introductory video
	Available for Purchase Now: Heavy Weather Avoidance and Route Design by Ma-Li Chen and Lee S. Chesneau

Graphical Forecast Verification

Click here to open the 48/96 hour OPC Graphical Forecast Verification page.
Ensure that the valid times on both charts match each other.

Example:

OPC Surface Analysis Chart Archive

Click here to view our archive of full-size Surface Analysis charts from the Ocean Prediction Center

Resources for Boat Races

Pacific Graphical Map Briefing
(Scroll to view all of the latest forecast charts)

Atlantic Graphical Map Briefing
(Scroll to view all of the latest forecast charts)

Text Forecast for Pacific Offshore Waters

Text Forecast for Atlantic Offshore Waters

NWS Coastal Marine Forecasts by Field Offices

NWS Coastal Marine Forecasts by Zones

Pacific Marine Weather Discussion

Atlantic Marine Weather Discussion

Glossary of Weather Abbreviations and Terms

North Atlantic Analyses, Forecasts, and Loops

500 Mb Analysis
(click image to view)

Surface Analysis
(click image to view)

Sea State Analysis
(click image to view)

Reg. Sea State Anl.
(click image to view)

3-Day Loop

3-Day Loop
W Atlantic / E Atlantic

3-Day Loop

Updated every 3 hours (UTC): 00, 03, 06, 09, 12, 15, 18, 21

7-Day Loop

7-Day Loop
W Atlantic / E Atlantic

7-Day Loop

Gulf Stream

IR Sat. 500 Mb Overlay
7-Day / 14-Day

Analysis / Imagery

14-Day Loop

14-Day Loop
W Atlantic / E Atlantic

14-Day Loop

Velocities

500 Mb Forecasts

Surface Forecasts

Wind & Wave Forecasts

Atlantic Reg. Anl. & 24 Hour Forecast

24/48/96 Hour

Anl. & Forecast Composite Loop

North Pacific Analyses, Forecasts, and Loops

500 Mb Analysis
(click image to view)

Surface Analysis
(click image to view)

Sea State Analysis
(click image to view)

Reg. Sea State Anl.
(click image to view)

3-Day Loop

3-Day Loop
W Pacific / E Pacific

3-Day Loop

Updated every 3 hours (UTC): 00, 03, 06, 09, 12, 15, 18, 21

7-Day Loop

7-Day Loop
W Pacific / E Pacific

7-Day Loop

IR Sat. 500 Mb Overlay
7-Day / 14-Day

14-Day Loop

14-Day Loop
W Pacific / E Pacific

14-Day Loop

500 Mb Forecasts

Surface Forecasts

Wind & Wave Forecasts

Pacific Reg. Anl. & 24 Hour Forecast

24/48/96 Hour

Anl. & Forecast Composite Loop

Important disclaimer about the weather chart products on this page.

Lee Chesneau's Marine Weather's vision is to provide every capable seagoing mariner with the knowledge, tools and culture required to embody self-reliance and independent decision-making in weather forecasting, route planning and heavy weather avoidance.
The goal of this vision is to be able to properly interpret, evaluate, and strategize public domain marine analyses and forecast charts through education and training.