The latest version of marine weather charts for broadcast by the U.S. Coast Guard are available from the National Weather Service Telecommunication Gateway on this server. The listed charts are in the G4 (T4) format and enveloped in TIFF for viewing, also available in GIF format. Satellite images are in JPEG format.
Reports from mariners of both poor AND good radio reception , as well as any other comments about weather broadcast services and forecast products are always greatly appreciated. Please be specific as possible noting your location, equipment/software used, date(s), time(s), frequency(s), mode (fax, voice, NAVTEX, etc.), signal strength, and problem observed (e.g. interference, noise, sync loss, echoes, etc), product name ( e.g. high seas text forecast for METAREA IV, if internet state link, etc. ). Send your comments to: Questions, Comments?.
Effective September 19, 2018, the radiofax broadcast schedule for Boston (NMF) was adjusted to include 72 hour forecast products for surface, wind/wave and 500 mb charts for the North Atlantic.
SIZE and UPDATED... refer to .TIF version of files
Condensed version of this page showing only the latest charts (no color charts available)
Printer Friendly Weather Briefing for the NW Atlantic showing the latest charts
Product Loops
Radiofax Information
Worldwide Marine Radiofacsimile Broadcast Schedules These products also available via E-mail or FTP
Radiofacsimile User's Guide
Key Terms and Symbols for these charts
Missed Charts for the Current Month(if any)
Historic Weather and Satellite Data
| Wind/Wave Charts | |||
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| 12Z Sea State Analysis 10E-95W NW Atlantic |  |
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| 00Z Wind/Wave Analysis 40W-98W NW Atlantic | |
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| 06Z Wind/Wave Analysis 40W-98W NW Atlantic | |
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| 12Z Wind/Wave Analysis 40W-98W NW Atlantic | |
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| 18Z Wind/Wave Analysis 40W-98W NW Atlantic | |
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| 24HR Wind/Wave Forecast VT00Z 40W-98W NW Atlantic | |
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| 24HR Wind/Wave Forecast VT12Z 40W-98W NW Atlantic | |
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| 48HR Wind/Wave Forecast VT00Z 10E-98W NW Atlantic | |
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| 48HR Wind/Wave Forecast VT12Z 10E-98W NW Atlantic | |
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| 48HR Wave Period Forecast VVT00Z 10E-95W NW Atlantic | |
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| 48HR Wave Period Forecast VT12Z 10E-95W NW Atlantic | |
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| 72HR Wind/Wave Forecast VT12Z 10E-95W NW Atlantic | |
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| 72HR Wave Period Forecast VT12Z 10E-95W NW Atlantic | |
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| 96HR Wind/Wave Forecast VT12Z 10E-95W NW Atlantic | |
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| 96HR Wave Period Forecast VT12Z 10E-95W NW Atlantic | |
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| Surface Charts | |||
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| 00Z Prelim Surface Analysis 45W-85W NW Atlantic | |
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| 06Z Prelim Surface Analysis 45W-85W NW Atlantic | |
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| 12Z Prelim Surface Analysis 45W-85W NW Atlantic | |
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| 18Z Prelim Surface Analysis 45W-85W NW Atlantic | |
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| 00Z Surface Analysis Part 1 10E-45W NW Atlantic | |
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| 00Z Surface Analysis Part 2 10E-45W NW Atlantic | |
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| 06Z Surface Analysis Part 1 10E-45W NW Atlantic | |
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| 06Z Surface Analysis Part 2 10E-45W NW Atlantic | |
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| 12Z Surface Analysis Part 1 10E-45W NW Atlantic | |
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| 12Z Surface Analysis Part 2 10E-45W NW Atlantic | |
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| 18Z Surface Analysis Part 1 10E-45W NW Atlantic | |
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| 18Z Surface Analysis Part 2 40W-95W NW Atlantic | |
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| 24HR Surface Forecast VT00Z 40W-98W NW Atlantic | |
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| 24HR Surface Forecast VT12Z 40W-98W NW Atlantic | |
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| 48HR Surface Forecast VT00Z 10E-95W NW Atlantic | |
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| 48HR Surface Forecast VT12Z 10E-95W NW Atlantic | |
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| 72HR Surface Forecast VT12Z 10E-95W NW Atlantic | |
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| 96HR Surface Forecast VT12Z 10E-95W NW Atlantic | |
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| Upper Air Charts | |||
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| 00Z 500MB Analysis 10E-95W NW Atlantic | |
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| 12Z 500MB Analysis 10E-95W NW Atlantic | |
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| 24HR 500MB Forecast VT00Z 10E-95W NW Atlantic | |
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| 24HR 500MB Forecast VT12Z 10E-95W NW Atlantic | |
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| 36HR 500MB Forecast VT00Z 10E-95W NW Atlantic | |
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| 36HR 500MB Forecast VT12Z 10E-95W NW Atlantic | |
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| 48HR 500MB Forecast VT00Z 10E-95W NW Atlantic | |
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| 48HR 500MB Forecast VT12Z 10E-95W NW Atlantic | |
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| 72HR 500MB Forecast VT12Z 10E-95W NW Atlantic | |
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| 96HR 500MB Forecast VT12Z 10E-95W NW Atlantic | |
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| Tropical Cyclone/High Wind Wave Charts | ||
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| Tropical Cyclone Danger Area VT03Z 05N-60N 00W-100W | |
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| Tropical Cyclone Danger Area VT09Z 05N-60N 00W-100W | |
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| Tropical Cyclone Danger Area VT15Z 05N-60N 00W-100W | |
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| Tropical Cyclone Danger Area VT21Z 05N-60N 00W-100W | |
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* Tropical Cyclone Danger Area chart replaced by 48HR High Wind/Wave Warning chart Dec 01 - May 14 with valid times 00z,06z,12z and 18z, Map area 05N-40N, 35W-100W |
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| Ice Chart | ||
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| Latest USCG Ice Limits Chart (During Ice Season) | |
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| Satellite Imagery | |
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| 00Z GOES IR Satellite Image, West Atlantic |  |
| 06Z GOES IR Satellite Image, Atlantic |  |
| 12Z GOES IR Satellite Image, West Atlantic |  |
| 18Z GOES IR Satellite Image, Atlantic |  |
| Schedule and Miscellaneous | ||
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| Radiofax Schedule, Boston, MA (DOS Text Version) |  |
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| Request for Comments | |
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| Product Notice Bulletin | |
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| Test Message | |
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| Internet File Names | |
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