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PNSWSH

 

Service Change Notice 17-92

National Weather Service Headquarters Silver Spring MD

1020 AM EDT Tue Aug 8 2017     

 

To:      Subscribers:

         -NOAA Weather Wire Service

         -Emergency Managers Weather Information Network

         -NOAAPORT

         Other NWS partners, users and employees

         

From:    Allison Allen

         Chief, Marine, Tropical, and Tsunami Services

         Branch               

 

Subject: Implementing improved marine zone coverage for

         coastal waters along the Florida Panhandle effective

         December 5, 2017

         

Effective Tuesday December 5, 2017 at 200 pm Eastern Standard

Time (EST), 100 pm Central Standard Time (CST), 1900 Coordinated

Universal Time (UTC), NWS will realign marine zones within

Weather Forecast Office (WFO) Tallahassee and Mobile areas of

responsibility for coastal waters along the Florida Panhandle 

to better align with the National Hurricane Center (NHC)

breakpoints. The changes involves the following marine zones: 

 

The first change moves the westernmost edge of GMZ750 and GMZ770

from Destin to the Okaloosa and the Walton county line where the

new NHC breakpoint is defined.

 

The second change splits Coastal Waters from Apalachicola to

Okaloosa-Walton County Line out to 20 NM into two zones. The

zones will now be Coastal Waters from Okaloosa-Walton County

Line to Mexico Beach out to 20 NM, zone 750, and Coastal Waters

from Mexico Beach to Apalachicola out to 20 NM, zone 752.

 

The third change splits coastal waters from Apalachicola to the

Okaloosa-Walton County Line, 20 to 60 NM, into two zones. The

zones will now be coastal waters From Okaloosa-Walton County

Line to Mexico Beach ,20 to 60 NM, zone 770, and coastal waters

from Mexico Beach to Apalachicola 20 to 60 NM, zone 772.

 

The marine zone code and name GMZ635, Choctawhatchee Bay, will

be split into two sections: the western portion of the new

Choctawhatchee Bay marine zone on the Okaloosa county side will

be GMZ635, Western Choctawhatchee Bay. The eastern portion of

the new Choctawhatchee Bay marine zone on the Walton County side

will become GMZ636, Eastern Choctawhatchee Bay.

 

 

Table 1:  Current marine zones and corresponding Universal

Geographic Codes (UGC) for WFO Mobile, AL 

 

UGC: Current Marine Zone Name

-------------------------------

GMZ655:  Coastal waters from Destin to Pensacola, FL, out 20 NM

GMZ675:  Waters from Destin to Pensacola, FL, from 20 to 60 NM

GMZ650:  Coastal waters from Pensacola, FL to Pascagoula, MS,

         out 20 NM

GMZ670:  Waters from Pensacola, FL to Pascagoula, MS, from 20 to

         60 NM

GMZ630:  North Mobile Bay

GMZ631:  South Mobile Bay

GMZ632:  Mississippi Sound

GMZ633:  Perdido Bay Area

GMZ634:  Pensacola Bay Area including Santa Rosa Sound

GMZ635:  Choctawhatchee Bay

 

Table 2:  Current marine zones and corresponding Universal

Geographic Codes (UGC) for WFO Tallahassee, FL 

 

UGC: Current Marine Zone Name

-----------------------------

GMZ730:  Apalachee Bay or Coastal Waters from Keaton Beach to

         Ochlockonee River, FL, out to 20 NM

GMZ755:  Coastal Waters from Ochlockonee River to Apalachicola,

         FL, out to 20 NM

GMZ775:  Waters from Suwannee River to Apalachicola, FL, from

         20 to 60 NM

GMZ750:  Coastal waters from Apalachicola to Destin, FL, out

         20 NM

GMZ765:  Coastal waters from Suwanee River to Keaton Beach, out

         20 NM

GMZ770:  Waters from Apalachicola to Destin, FL, from 

         20 to 60 NM

 

Table 3:  Marine zones and corresponding Universal Geographic

Codes (UGC) for which WFO Mobile AL will issue forecasts and

warnings effective December 5, 2017

 

UGC: Marine Zones Effective December 5, 2017

--------------------------------------------

GMZ655:  Coastal waters from Okaloosa-Walton County Line to

         Pensacola, FL, out 20 NM

GMZ675:  Waters from Okaloosa-Walton County Line to Pensacola,

         FL, from 20 to 60 NM

GMZ650:  Coastal waters from Pensacola, FL to Pascagoula, MS,

         out 20 NM

GMZ670:  Waters from Pensacola, FL, to Pascagoula, MS, from

         20 to 60 NM

GMZ630:  North Mobile Bay

GMZ631:  South Mobile Bay

GMZ632:  Mississippi Sound

GMZ633:  Perdido Bay Area

GMZ634:  Pensacola Bay Area including Santa Rosa Sound

GMZ635:  Western Choctawhatchee Bay

GMZ636:  Eastern Choctawhatchee Bay

 

 

Table 4:  Marine zones and corresponding Universal Geographic

Codes (UGC) for which WFO Tallahassee FL will issue forecasts

and warnings effective December 5, 2017

 

UGC: Marine Zones Effective December 5, 2017

--------------------------------------------

GMZ730:  Apalachee Bay or Coastal Waters from Keaton Beach to

         Ochlockonee River, FL, out to 20 NM

GMZ755:  Coastal Waters from Ochlockonee River to Apalachicola,

         FL, out to 20 NM

GMZ775:  Waters from Suwannee River to Apalachicola, FL, from

         20 to 60 NM

GMZ750:  Coastal Waters from Okaloosa-Walton County Line to       

         Mexico Beach Out to 20 NM

GMZ752:  Coastal Waters from Mexico Beach to Apalachicola out to

         20 NM

GMZ765:  Coastal waters from Suwanee River to Keaton Beach, out

         20 NM

GMZ770:  Coastal Waters from Okaloosa-Walton County Line to

         Mexico Beach 20 to 60 NM

GMZ772:  Coastal Waters from Mexico Beach to Apalachicola 20 to

         60 NM

 

Graphical images of the current and future marine weather zones

listed above are online at:

 

http://www.weather.gov/tae/marine_zone_changes

 

Table 5:  NWS products affected by the WFO Mobile, AL, marine

zone changes effective December 5, 2017:

 

PRODUCT NAME                  AWIPS ID       WMO HEADING

------------                  --------       --------

COASTAL WATERS FORECAST       CWFMOB         FZUS54 KMOB

SPECIAL MARINE WARNING        SMWMOB         WHUS54 KMOB

MARINE WEATHER STATEMENT      MWSMOB         FZUS74 KMOB

MARINE WEATHER MESSAGE        MWWMOB         WHUS74 KMOB

HURRICANE LOCAL STATEMENT     HLSMOB         WTUS84 KMOB

WATCH COUNTY NOTIFICATION     WCNMOB         WWUS64 KMOB

HAZARDOUS WEATHER OUTLOOK     HWOMOB         FLUS44 KMOB

SPECIAL WEATHER STATEMENT     SPSMOB         WWUS84 KMOB

TSUNAMI MESSAGE               WEXX20         PAAQ TSUAT1

WATCH OUTLINE UPDATE          WOUS64         KWNS WOUn (n=1-9)

 

Table 6:  NWS products affected by the WFO Tallahassee FL marine

zone changes effective December 5, 2017:

 

PRODUCT NAME                  AWIPS ID       WMO HEADING

------------                  --------       --------

COASTAL WATERS FORECAST       CWFTAE         FZUS52 KTAE

SPECIAL MARINE WARNING        SMWTAE         WHUS52 KTAE

MARINE WEATHER STATEMENT      MWSTAE         FZUS72 KTAE

MARINE WEATHER MESSAGE        MWWTAE         WHUS72 KTAE

HURRICANE LOCAL STATEMENT     HLSTAE         WTUS82 KTAE

WATCH COUNTY NOTIFICATION     WCNTAE         WWUS62 KTAE

HAZARDOUS WEATHER OUTLOOK     HWOTAE         FLUS42 KTAE

SPECIAL WEATHER STATEMENT     SPSTAE         WWUS82 KTAE

TSUNAMI MESSAGE               WEXX20         PAAQ TSUAT1

WATCH OUTLINE UPDATE          WOUS64         KWNS WOUn (n=1-9)

 

Users of WFOs Mobile and Tallahassee products must reprogram

affected hardware and software to continue correctly processing

the above mentioned products.

 

Users accessing NWS graphical marine forecasts must download

updated zone map shapefiles to correctly view forecasts for the

Gulf of Mexico waters along the Florida panhandle. Updated zone

map shapefiles containing the new zones are available online at:

 

http://www.nws.noaa.gov/geodata/catalog/wsom/html/marinezones.htm

 

If you have any questions, Please contact

 

Jane Hollingsworth             Jeffrey Medlin

Meteorologist In Charge        Meteorologist In Charge

Tallahassee FL 32306-4509      Mobile, AL 36608

850-942-8833                   251-633-6443 Ext. 222

                              

National Service Change Notices are online at:

 

http://www.nws.noaa.gov/om/notif.htm

 

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