National Hurricane Center

NHC Marine Forecasts & Analyses

Marine Warnings are in effect

Last updated: 23 Dec 2024 08:31 UTC

Gale Warning: East Pacific High Seas

Atlantic

Active Storms	\|	Marine Forecasts
2-Day Graphical Tropical Weather Outlook	\|	7-Day Graphical Tropical Weather Outlook

Text forecasts

For a quick reference to many of the products listed below, you may download our trifold brochure. (También está disponible en español.)

	*Atlantic*	*Eastern Pacific*
Surface (10-m) Winds Surface (10-m) Wind Gusts Significant Wave Heights Marine Hazards description	NHC Display (for low-bandwidth users) Access NDFD Grids
Event-Driven Marine Spot Forecasts description	NWS Spot Forecast Page

	*Atlantic*	*Eastern Pacific*
Tropical Weather Discussion description \| pdf	Atlantic	Eastern Pacific
High Seas Forecast description \| pdf Note: SE Pacific High Seas Forecast responsibilty transfered to Peru effective 30 June 2017	Atlantic	NE Pacific
Offshore Waters Forecasts Atlantic: description \| pdf Eastern Pacific: description (pdf)	Interactive Zones Map Caribbean/Tropical N Atlantic west of 55W Gulf of Mexico N Atlantic from 19N to 31N west of 55W	Interactive Zones Map Mexico Central America/Colombia/Ecuador
NAVTEX Marine Forecasts description \| pdf	New Orleans, LA transmitter Miami, FL transmitter San Juan, PR transmitter	–
High Frequency (HF) Voice Broadcasts - VOBRA description \| pdf	Caribbean/SW North Atlantic Gulf of Mexico	–
Pan-American Temperature & Precipitation description \| pdf	Selected Pan American Locations

NOTICE - Unified Surface Analysis Changes:
Monsoon Trough - Effective 1 June 2011
Tropical Cyclone Boxes - Effective 15 July 2013

	*Atlantic*	*Eastern Pacific*
Tropical Surface Analysis & NWS Unified Surface Analysis description \| pdf detailed manual (pdf) NOTICE 2011 NOTICE 2013	Tropical N. Atlantic \| loop SW North Atlantic Caribbean Sea Gulf of Mexico	Tropical N. Pacific \| loop Eastern North Pacific
	Low Resolution Wide Area High Resolution Wide Area (~3 MB PDF) Glossary of Map Features (PDF) More Views from the Ocean Prediction Center
Significant Wave Height Analysis description \| pdf	Atlantic \| resized	Eastern Pacific \| resized
Wind Speed Probabilities-Based Tropical Cyclone Danger Graphic description	Issued May 15th - Nov 30th	Issued May 15th - Nov 30th
High Wind and Associated Seas description \| pdf	Issued Dec 1st - May 14th	Issued Dec 1st - May 14th
Wind/Wave Forecasts description \| pdf	24-hour \| resized 36-hour \| resized 48-hour \| resized 72-hour \| resized	24-hour \| resized – 48-hour \| resized 72-hour \| resized
Surface Forecasts description \| pdf	24-hour \| resized 48-hour \| resized 72-hour \| resized	24-hour \| resized 48-hour \| resized 72-hour \| resized
Peak Wave Period / Primary Swell Direction description \| pdf	48-hour \| resized 48-hour color \| resized 72-hour \| resized 72-hour color \| resized	48-hour \| resized 48-hour color \| resized 72-hour \| resized 72-hour color \| resized
Significant Short Term Weather Graphic (Flooding Rain/Volcanic Ash Graphicast) description	View Graphic	View Graphic

	*Atlantic*	*Eastern Pacific*
Tropical Surface Analysis & NWS Unified Surface Analysis description \| pdf detailed manual (pdf) NOTICE 2011 NOTICE 2013	Tropical N. Atlantic \| loop SW North Atlantic Caribbean Sea Gulf of Mexico	Tropical N. Pacific \| loop Eastern North Pacific
	Low Resolution Wide Area High Resolution Wide Area (~3 MB PDF) Glossary of Map Features (PDF) More Views from the Ocean Prediction Center
Significant Wave Height Analysis description \| pdf	Atlantic \| resized	Eastern Pacific \| resized
Wind Speed Probabilities-Based Tropical Cyclone Danger Graphic description	Issued May 15th - Nov 30th	Issued May 15th - Nov 30th
High Wind and Associated Seas description \| pdf	Issued Dec 1st - May 14th	Issued Dec 1st - May 14th
Wind/Wave Forecasts description \| pdf	24-hour \| resized 36-hour \| resized 48-hour \| resized 72-hour \| resized	24-hour \| resized – 48-hour \| resized 72-hour \| resized
Surface Forecasts description \| pdf	24-hour \| resized 48-hour \| resized 72-hour \| resized	24-hour \| resized 48-hour \| resized 72-hour \| resized
Peak Wave Period / Primary Swell Direction description \| pdf	48-hour \| resized 48-hour color \| resized 72-hour \| resized 72-hour color \| resized	48-hour \| resized 48-hour color \| resized 72-hour \| resized 72-hour color \| resized
Significant Short Term Weather Graphic (Flooding Rain/Volcanic Ash Graphicast) description	View Graphic	View Graphic