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NATIONAL WEATHER SERVICE MARINE PRODUCTS VIA USCG MF VOICE
2182 kHz (Present calling frequency)
2187.5 kHz (Future calling frequency)
2670 kHz
The U.S. Coast Guard broadcasts National Weather Service offshore forecasts and storm warnings of interest to the mariner on 2670 kHz following an initial announcement on 2182 kHz. Typical transmission range is 50-150 nautical miles during the day and 150-300 nautical miles at night. These broadcasts are prepared by the Ocean Prediction Center,
Tropical Prediction Center,
Anchorage Forecast Office
and Honolulu Forecast Office. Visit the U.S. Coast Guard Maritime Telecommunications Information webpage for further information on Coast Guard telecommunications. See tables below for a listing of current broadcast schedules of U.S. Coast Guard Groups performing medium frequency (MF) voice broadcasts.
In the state of Alaska, medium frequency voice broadcasts, are performed from National Weather Service Forecast Offices on a MF/HF frequency of 4125 kHz .
A Listing of NWS Marine Products Broadcast via U.S. Coast Guard MF Voice is available.
Click here to listen to a typical USCG MF voice broadcast. Refer to NGA Publication 117, which is updated through the Notice to Mariners, for the latest official listing of U.S. Coast Guard broadcast schedules. The British Admiralty List of Radio Signals , is an excellent reference source for weather broadcast information.
All NWS marine forecasts rely heavily on the Voluntary Observing Ship (VOS) program for obtaining meteorological observations. All broadcasts in the upper sideband (USB) mode.
First Coast Guard District
MF Voice Weather Broadcast |
Sector Field Office (SFO) Southwest Harbor
Parent Command – Sector Northern New England | 1135z, 2335z |
Sector Northern New England | 1105z, 2305z |
Sector Boston | 1035z, 2235z |
Sector Southeastern New England | 0440z, 1640z |
SFO Moriches – Parent Command – Sector Long Island Sound | 0010z, 1210z |
Sector Long Island Sound | none |
Sector New York | none |
Fifth Coast Guard District
MF Voice Weather Broadcast |
SFO Atlantic City - Parent Command – Sector Delaware Bay | 1103z, 2203z |
Sector Delaware Bay | none |
Sector Baltimore | none |
SFO Eastern Shore – Parent Command – Sector Hampton Roads | 0233z, 1403z |
Sector Hampton Roads | 0203z, 1333z |
SFO Cape Hatteras – Parent Command – Sector North Carolina | 0133z, 1303z |
Sector North Carolina | 0103z, 1233z |
Seventh Coast Guard District
MF Voice Weather Broadcast |
Sector Charleston | 0420z, 1620z |
Sector Jacksonville | 0620z, 1820z |
Sector Miami | 0350z, 1550z |
Sector Key West | none |
Sector San Juan | 0305z, 1505z |
Sector St. Petersburg | 0320z, 1420z |
Eighth Coast Guard District MF Voice Weather Broadcast | Group Ohio Valley | none |
Sector Upper Mississippi River | none |
Sector Lower Mississippi River | none |
Sector Mobile | 1020z, 1220z, 1620z, 2220z |
Sector New Orleans | 0550z, 1035z, 1235z, 1635z, 2235z | Sector Houston-Galveston | 1050z, 1250z, 1650z, 2250z |
Sector Corpus Christi | 1040z, 1240z, 1640z, 2240z |
Ninth Coast Guard District
MF Voice Weather Broadcast |
Sector Buffalo | none |
Sector Detroit | none |
Sector Sault Ste. Marie | none |
SFO Grand Haven - Parent Command – Sector Lake Michigan | | none |
Sector Lake Michigan | none |
Eleventh Coast Guard District
MF Voice Weather Broadcast |
Group/Airstation Humboldt Bay | 0303z, 1503z |
Sector San Francisco | 0203z, 1403z |
Sector Los Angeles/Long Beach | 0503z, 1303z, 2103z |
Sector San Diego | none |
Thirteenth Coast Guard District MF Voice Weather Broadcast |
Sector Seattle | none |
Group/Airstation Port Angeles | 0615z, 1815z |
Group/Airstation Astoria | 0533z, 1733z |
Sector Portland | none |
Group/Airstation North Bend | 0603z, 1803z |
Fourteenth Coast Guard District
MF Voice Weather Broadcast |
Sector Honolulu | 0545z, 1145z, 1745z, 2345z |
Sector Guam | 0705z, 2205z |
Seventeenth Coast Guard District
MF Voice Weather Broadcast |
Sector Juneau | none |
Communications Station Kodiak | none |
Marine Safety Unit (MSU) Valdez – Parent Command – Sector Anchorage | none |
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