National Weather Service United States Department of Commerce

Lake-effect Snow and Whiteout Conditions in the Great Lakes Region; Below-average Temperatures in the East

Heavy lake-effect and lake-enhanced snow will persist downwind of the Great Lakes and produce some whiteout conditions that could cause difficult travel conditions. A coastal low will produce moderate to heavy snow over parts of southern and eastern New England into the afternoon. Below average temperatures are expected across the eastern U.S., particularly with chilly morning temperatures. Read More >

Key West, FL

Weather Forecast Office

Marine

Weather.gov > Key West, FL > Marine

Marine Weather for the Florida Keys

 

Listen to Marine Weather Information on NOAA All Hazards Weather Radio

Hourly Weather Graph for Selected Florida Keys Marine Locations

Wave Graphics From Nearshore Wave Prediction System

Florida Keys Coastal Waters Forecast

Marine Weather On Your Phone

Submit Marine Reports HERE

 

Send marine weather observations, reports, pictures, or questions to Marine Program Meteorologist Chris Rothwell.

 

 

LATEST MARINE WEATHER FORECASTS...

 

Florida Keys Marine Zones

CLICK YOUR AREA OF INTEREST ON THE MAP BELOW
FOR THE LATEST MARINE WEATHER FORECAST

 

Florida Keys Marine Zones
 
 
 
GMZ042: Hawk Channel from Ocean Reef to Craig Key out to the reef GMZ052: Straits of Florida from Ocean Reef to Craig Key out 20 nm GMZ072: Straits of Florida from Ocean Reef to Craig Key 20 to 60 nm out GMZ043: Hawk Channel from Craig Key to west end of Seven Mile Bridge out to the reef GMZ053: Straits of Florida from Craig Key to west end of Seven Mile Bridge out 20 nm GMZ054: Straits of Florida from west end of Seven Mile Bridge to south of Halfmoon Shoal out 20 nm GMZ073: Straits of Florida from Craig Key to west end of Seven Mile Bridge 20 to 60 nm out GMZ074: Straits of Florida from west end of Seven Mile Bridge to south of Halfmoon Shoal 20 to 60 nm out GMZ075: Straits of Florida from Halfmoon Shoal to 20 nm west of Dry Tortugas 20 to 60 nm out GMZ055: Straits of Florida from Halfmoon Shoal to GMZ055 20 nm west of Dry Tortugas out 20 nm GMZ034: Gulf of America including Dry Tortugas and Rebecca Shoal Channel GMZ044: Hawk Channel from west end of Seven Mile Bridge to Halfmoon Shoal out to the reef GMZ033: Gulf waters from East Cape Sable to Chokoloskee 20 to 60 nm out and beyond 5 fathoms GMZ032: Bayside and Gulfside from Craig Key to Halfmoon Shoal out to 5 fathoms GMZ031: Florida Bay including Blackwater and Buttonwood Sounds GMZ035: Gulf of America from West End of Seven Mile Bridge to Halfmoon Shoal out to 5 Fathoms GMZ035: Gulf of America from West End of Seven Mile Bridge to Halfmoon Shoal out to 5 Fathoms GMZ042: Hawk Channel from Ocean Reef to Craig Key out to the reef GMZ052: Straits of Florida from Ocean Reef to Craig Key out 20 nm GMZ072: Straits of Florida from Ocean Reef to Craig Key 20 to 60 nm out GMZ043: Hawk Channel from Craig Key to west end of Seven Mile Bridge out to the reef GMZ053: Straits of Florida from Craig Key to west end of Seven Mile Bridge out 20 nm GMZ073: Straits of Florida from Craig Key to west end of Seven Mile Bridge 20 to 60 nm out GMZ054: Straits of Florida from west end of Seven Mile Bridge to south of Halfmoon Shoal out 20 nm GMZ074: Straits of Florida from west end of Seven Mile Bridge to south of Halfmoon Shoal 20 to 60 nm out GMZ075: Straits of Florida from Halfmoon Shoal to 20 nm west of Dry Tortugas 20 to 60 nm out GMZ055: Straits of Florida from Halfmoon Shoal to GMZ055 20 nm west of Dry Tortugas out 20 nm GMZ034: Gulf of America including Dry Tortugas and Rebecca Shoal Channel GMZ044: Hawk Channel from west end of Seven Mile Bridge to Halfmoon Shoal out to the reef GMZ033: Gulf waters from East Cape Sable to Chokoloskee 20 to 60 nm out and beyond 5 fathoms GMZ032: Bayside and Gulfside from Craig Key to Halfmoon Shoal out to 5 fathoms GMZ031: Florida Bay including Blackwater and Buttonwood Sounds
 

 

Marine Observations

Marine Weather Portal

Florida Keys Observations
 

Pulley Ridge (42097)

Pulaski Shoal Light (PLSF1)

Sand Key (SANF1)

Sombrero Key (SMKF1)

Long Key (LONF1)

Molasses Reef (MLRF1)

Fowey Rocks (FWYF1)

Plain Language Ship Report

Other Marine Reports

National Data Buoy Center

South Florida Buoy Location Map

Nowcoast  

 

Sea Surface Temperatures

NOAA/National Ocean Service

NASA Short-Term Prediction Research and Transition Center (SPoRT)

NOAA/NWS Marine Sites

NOAA Telephone Recordings

National Marine Forecasts

Voluntary Observing Ship Program

Latest Mariner's Weather Log (May 2019)

National Ocean Service - NOS

Florida Keys Marine Sanctuary

Harmful Algal Bloom Bulletins

NOAA Teacher at Sea brochure

Marine Weather - Caribbean and Tropical Atlantic
 

Weather and Ocean Maps
Surface Analysis - Florida

Tropical Atlantic Surface Analysis

Surface Map Marine Briefing

Gulf Stream Analysis

Real-Time Ocean Forecast System

NOAA WAVEWATCH III Model
   

 

Florida Keys Area Forecast Discussion

Marine Weather Warning and Forecast Messages
1 Special Marine Warning
1 Costal Hazard Message
2 Marine Weather Statement
2 Marine Weather Message
2 Short Term Forecast
2 Coastal Waters Forecast for the Florida Keys

Graphical Products
1 Gulf Stream Graphic
1 Daily Forecasts
1 Weekly Forecasts

Offshore Waters Forecasts
2 Gulf of America, Caribbean, and western North Atlantic

Marine Reporting
2 Join our Marine Weather Spotter Network

 

 

NOTICE - Check time and date of forecasts. Linked data may not represent the latest forecast. The Internet is not part of the National Weather Service's operational data stream and should never be relied upon as a means to obtain the latest forecast and warning data. Become familar with and use other means such as NOAA Weather Radio to obtain the latest forecasts and warnings. Please read our DISCLAIMER

 

 

 
Florida Keys Tides

Tide Predictions

Current Predictions

Key West Harbor

Vaca Key  

Coastal Flooding

Boating Safety
Lightning and Boats

USCG Office of Boating Safety

National Safe Boating Council

FWC Boating Safety
 

Marine Weather References
Beaufort Wind Scale

VHF Marine Radio Channels

General Marine Definitions

Significant Wave Height or Seas

Map of Florida Keys National Marine Sanctuary

Mariner's Guide to Hurricanes (1.23MB PDF)

Florida Keys Cloud Chart
 

Coral Reef Info
NOAA's Coral Reef Conservation

Reef Relief (located in Key West)

Reef Environmental Education Foundation
 

Florida Keys Marine Sites
Mote Marine Tropical Research Laboratory
   

 

Follow us on X  Follow us on X
Follow us on Facebook  Follow us on Facebook
KEY RSS Feed  KEY RSS Feed

Current Hazards
Hazardous Outlook
National Outlooks
National Hazards
Tropical Hazards
Coastal Flooding
Submit Storm Reports

Current Weather
Observations
Latest Sounding
Satellite Images
Rivers and Lakes
Precipitation Estimate
Hydrology

Forecasts
Local
Forecast Discussion
Activity Planner
Graphical Forecast
Tropical Weather
Fire Weather
Aviation Weather
Marine Weather

Climate
Local Observed Climate
National

Radar Imagery
Key West Radar
Miami Radar
Other National Radars

Weather Safety
Get Prepared
Awareness Campaigns
Weather Radio
SKYWARN
Storm Ready
Safety Videos
EPA Sunwise/UV Index

Past Weather
Tropical Cyclone Reports

Additional Info
Our Office
Office History
Florida Keys History
COOP Program
Coastal Flooding
Waterspouts
StoryMaps/Research
Education/Outreach
Other Links
Cloud Chart

Contact Us
Webmaster
Tours