New
Marine Weather Message
On Wednesday, August 6, 2008 at 1800 Coordinated Universal Time
(UTC), National Weather Service Forecast Offices (WFOs) serving the Atlantic,
Pacific, Gulf of Mexico, Caribbean, and Great Lakes coasts began issuing the
Marine Weather Message (MWW) operationally. Selected WFOs
have been issuing the MWW experimentally since August 1, 2007.
The MWW better informs mariners of adverse marine weather hazards
and serves as a dedicated long duration marine watch, warning and advisory
product. The MWW implements the operational Valid Time Event Code (VTEC) for all long term marine
Watch, Warning and Advisory events. This includes the implementation of five
new marine watch events. The MWW is patterned after the winter weather watch/warning/advisory
bulletin (WSW) and the non-precipitation watch/warning/advisory bulletin (NPW).
The MWW does not include information on short duration events such as severe thunderstorms and waterspouts or for tropical cyclones.
Prior to August 6, 2008, National Weather Service WFOs issued marine
warnings and advisories via VTEC in the Coastal Waters
Forecast (CWF) and the Nearshore Marine Forecast (NSH).
Operational VTEC in the CWF and NSH were discontinued on August 6,
2008 at 1800 UTC. The five new marine watch headlines are now also included in the CWF and NSH for those WFO's issuing the MWW.
Current MWW
products
This product contains the following suite of marine watch, warning and advisory
events:
Marine Watches
- Hurricane Force Wind Watch
- Storm Watch
- Gale Watch
- Hazardous Seas Watch
- Heavy Freezing Spray Watch
Marine Warnings
- Hurricane Force Wind Warning
- Storm Warning
- Gale Warning
- Hazardous Seas Warning
- Heavy Freezing Spray Warning
Marine Advisories
- Ashfall Advisory
- Brisk Wind Advisory
- Dense Fog Advisory
- Dense Smoke Advisory
- Freezing Spray Advisory
- Low Water Advisory
- Small Craft Advisory
- Small Craft Advisory for Hazardous Seas
- Small Craft Advisory for Rough Bar
- Small Craft Advisory for Winds
Service Change Notifications (posted at www.nws.noaa.gov/om/notif.htm
MWW Presentations
MWW Directive
Users must add the following product headers to their communications
databases to begin receiving the MWW:
NWS Eastern Region
|
|
|
|
Local Office |
WMO Heading |
AWIPS ID |
|
|
|
TAUNTON MA |
WHUS71 KBOX |
MWWBOX |
BUFFALO NY |
WHUS71 KBUF |
MWWBUF |
CHARLESTON SC |
WHUS72 KCHS |
MWWCHS |
CLEVELAND OH |
WHUS71 KCLE |
MWWCLE |
NEW YORK NY |
WHUS71 KOKX |
MWWOKX |
PHILADELPHIA PA |
WHUS71 KPHI |
MWWPHI |
CARIBOU ME |
WHUS71 KCAR |
MWWCAR |
GRAY/PORTLAND ME |
WHUS71 KGYX |
MWWGYX |
WILMINGTON NC |
WHUS72 KILM |
MWWILM |
NEWPORT NC |
WHUS72 KMHX |
MWWMHX |
WAKEFIELD VA |
WHUS71 KAKQ |
MWWAKQ |
STERLING VA |
WHUS71 KLWX |
MWWLWX |
|
NWS Central Region |
|
|
|
Local Office |
WMO Heading |
AWIPS ID |
|
|
|
GAYLORD, MI |
WHUS73 KAPX |
MWWAPX |
DETROIT, MI |
WHUS73 KDTX |
MWWDTX |
GRAND RAPIDS, MI |
WHUS73 KGRR |
MWWGRR |
MARQUETTE, MI |
WHUS73 KMQT |
MWWMQT |
CHICAGO, IL |
WHUS73 KLOT |
MWWLOT |
NORTHERN INDIANA, IN |
WHUS73 KIWX |
MWWIWX |
GREEN BAY, WI |
WHUS73 KGRB |
MWWGRB |
MILWAUKEE, WI |
WHUS73 KMKX |
MWWMKX |
DULUTH, MN |
WHUS73 KDLH |
MWWDLH |
|
|
|
NWS Southern Region |
|
|
|
|
|
Local Office |
WMO Heading |
AWIPS ID |
|
|
|
MOBILE, AL |
WHUS74 KMOB |
MWWMOB |
KEY WEST, FL |
WHUS72 KKEY |
MWWKEY |
JACKSONVILLE, FL |
WHUS72 KJAX |
MWWJAX |
MIAMI, FL |
WHUS72 KMFL |
MWWMFL |
MELBOURNE, FL |
WHUS72 KMLB |
MWWMLB |
TAMPA, FL |
WHUS72 KTBW |
MWWTBW |
TALLAHASSEE, FL |
WHUS72 KTAE |
MWWTAE |
LAKE CHARLES, LA |
WHUS74 KLCH |
MWWLCH |
NEW ORLEANS, LA |
WHUS74 KLIX |
MWWLIX |
BROWNSVILLE, TX |
WHUS74 KBRO |
MWWBRO |
CORPUS CHRISTI, TX |
WHUS74 KCRP |
MWWCRP |
HOUSTON, TX |
WHUS74 KHGX |
MWWHGX |
SAN JUAN, PR |
WHCA72 TJSJ |
MWWSJU |
SAN JUAN, PR/SPANISH/ |
WHCA72 TJSJ |
MWWSPN |
|
|
|
NWS Western Region |
|
|
|
Local Office |
WMO Heading |
AWIPS ID |
|
|
|
LOS ANGELES, CA |
WHUS76 KLOX |
MWWLOX |
SAN DIEGO, CA |
WHUS76 KSGX |
MWWSGX |
MEDFORD, OR |
WHUS76 KMFR |
MWWMFR |
PORTLAND, OR |
WHUS76 KPQR |
MWWPQR |
SEATTLE, WA |
WHUS76 KSEW |
MWWSEW |
EUREKA, CA |
WHUS76 KEKA |
MWWEKA |
MONTEREY, CA |
WHUS76 KMTR |
MWWMTR |
|
|
|
NWS Pacific Region |
|
|
|
Local Office |
WMO Heading |
AWIPS ID |
|
|
|
HONOLULU, HI |
WHHW70 PHFO |
MWWHFO |
GUAM, GU |
WHGM70 PGUM |
MWWGUM |
More detailed information on the marine weather message product is provided
in the product description document posted at: http://www.weather.gov/os/mww/MWW_PDD.pdf
Users of the product are encouraged to provide feedback by using the
brief survey and comment form available online at:http://www.weather.gov/survey/nws-survey.php?code=mww
MWW Example
WHUS76 KMFR 081505
MWWMFR
URGENT – MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE MEDFORD OR
805 AM PDT FRI AUG 8 2008
...GALE WARNING IN EFFECT UNTIL 9 PM PST THIS EVENING...
.WINDS WILL INCREASE LATE THIS MORNING AHEAD OF AN APPROACHING
STRONG COLD FRONT THAT WILL REACH THE COAST BY LATE AFTERNOON.
SOUTH WINDS WILL INCREASE TO GALES LATE THIS MORNING. AFTER THE
FRONT PASSES THROUGH THE WATERS WINDS WILL BECOME NORTHWEST
AND DIMINISH BELOW GALES TO SMALL CRAFT ADVISORY WINDS.
PZZ350-082300-
/O.NEW.KMFR.GL.W.0001.080808T1600Z-080809T0500Z/
COASTAL WATERS FROM FLORENCE TO CAPE BLANCO OR OUT 20 NM-
705 AM PST FRI AUG 8 2008
...GALE WARNING IN EFFECT UNTIL 9 PM PST THIS EVENING...
THE NATIONAL WEATHER SERVICE IN MEDFORD HAS ISSUED A GALE
WARNING...WHICH IS IN EFFECT UNTIL 9 PM THIS EVENING.
SOUTH WINDS WILL INCREASE LATE THIS MORNING AHEAD OF A COLD
FRONT...WITH EXPECTED WINDS OF 35 TO 40 KT WITH GUSTS TO 45 KT.
WINDS WILL BECOME NORTHWEST AND DIMINISH BELOW GALES BEHIND
THE FRONT LATE THIS EVENING.
PRECAUTIONARY/PREPAREDNESS ACTIONS…
A GALE WARNING MEANS WINDS OF 34 TO 47 KNOTS ARE IMMINENT OR
OCCURING. OPERATING A VESSEL IN GALE CONDITIONS REQUIRES
EXPERIENCE AND PROPERLY EQUIPPED VESSELS. IT IS HIGHLY
RECOMMENDED THAT MARINERS WITHOUT THE PROPER EXPERIENCE
SEEK SAFE HARBOR PRIOR TO THE ONSET OF GALE CONDITIONS.
&&
$$
If you have additional questions on the MWW bulletin, contact:
Richard May
National Weather Service
Acting Marine Weather Program Leader
Phone: 301-713-1677 x 127
email: richard.may@noaa.gov |