NWS MARINE PRODUCTS VIA COAST GUARD MF VOICE

Frequencies used for MF transmissions:
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 call 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 Marine Prediction Center, Anchorage Forecast Office , Honolulu Forecast Office, Miami
Forecast Office, and New Orleans Forecast Office. In the state of Alaska, medium frequency (MF) voice
broadcasts, are performed from National Weather Service Forecast Offices on a frequency of 4125 kHz .

MF VOICE WEATHER BROADCAST

First Coast Guard District 
Group Southwest Harbor, Maine   none
Group Portland, Maine   none
Group Boston, Massachusetts     none
Group Woods Hole, Massachusetts 0440Z   1640Z
Group Moriches, New York        0010Z   1210z
Group Long Island Sound, New York       none
Activities New York, New York   none

Fifth Coast Guard District 
Atlantic City, New Jersey       1103Z   2203Z
Group Philadelphia, Pennsylvania        none
Baltimore, Maryland     none
Eastern Shore, Virginia 0233Z   1403Z
Hampton Roads, Virginia 0203Z   1333Z
Cape Hatteras, North Carolina   0133Z   1303Z
Fort Macon, North Carolina      0103Z   1233Z

Seventh Coast Guard District 
Group Charleston, South Carolina        0420Z   1620Z
Group Mayport, Florida  0620Z   1820Z
Group Miami, Florida    0350Z   1550Z
Group Key West, Florida none
Greater Antilles Section        0305Z   1505Z
Group St. Petersburg, Florida   0320Z   1420Z

Eighth Coast Guard District 
Group Ohio Valley       none
Group Upper Mississippi River   none
Group Lower Mississippi River   none
Group Mobile    1020Z   1220Z   1620Z 2220Z
Group New Orleans       0550Z   1035Z   1235Z   1635Z   2235Z
Group Galveston 1050Z   1250Z   1650Z   2250Z
Group Corpus Christi    1040Z   1240Z   1640Z   2240Z

Ninth Coast Guard District 
Group Buffalo   none
Group Detroit   none
Group Sault Ste. Marie  none
Group Grand Haven       none
Group Milwaukee none

Eleventh Coast Guard District 
Group Humboldt Bay      0303Z   1503Z
Group San Francisco     0203Z   1403Z
Group Los Angeles/Long Beach    0503Z   1303Z   2103Z
Activities San Diego    none

Thirteenth Coast Guard District 
Group Seattle   none
Group Port Angeles      0615Z   1815Z
Group Astoria   0533Z   1733Z
Group Portland  none
Group North Bend        0603Z   1803Z

Fourteenth Coast Guard District 
Group Honolulu  0545Z   1145Z   1745Z   2345Z
Marianas Section        0705Z   2205Z

Seventeenth Coast Guard District 
Communication Center Juneau     none
Air Station Kodiak      none
Marine Safety Office Valdez     none

In the state of Alaska, medium frequency (MF) voice broadcasts, are performed from National Weather
Service Forecast Offices on a frequency of 4125 kHz.

Back to Monitoring Times home page