National Weather Service United States Department of Commerce

Upcoming Changes to WFO Guam Zones

Hafa Adai from WFO Guam!

 

The Guam forecast zones will be changing next year in order to use the correct US Postal Service postal codes for zones outside of Guam.  For the CNMI, this is MP, for Republic of Palau, this is PW, for the Federated States of Micronesia, this is FM, and for the Republic of the Marshall Islands, this is MH.  Please look below at the tables for your island and the graphical maps that will show you how the zone for your island might be changing.  For many users, this will be transparent, but for some it could be crucial information.

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

 

MARIANAS ZONES

 

 

 

 

                   

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

WESTERN MICRONESIA ZONES

 

EASTERN MICRONESIA ZONES

 

PALAU ZONES

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

YAP ZONES

 

CHUUK ZONES

 

POHNPEI/KOSRAE ZONES

 

THE MARSHALL ISLANDS ZONES

 

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

 

 

Justification

These changes are intended to provide increased flexibility and  improved accuracy of forecast, watch, warning, and advisory products in the public and marine weather programs. These changes will also change the names of some islands to their original native names, and use the correct postal codes for zones outside of Guam.

GUZ002-068 current zones will be converted into MPZ001-007 (Northern Marianas), PWZ001-008 (Republic of Palau), FMZ001-038 (Federated States of Micronesia), and MHZ001-010 (Republic of the Marshall Islands) separate zones. These new zones are being divided to establish different zone names for the respective countries.

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

The following zones have been removed, because they are no longer populated:

(1) Asuncion and the Maug Islands have been removed from GUZ005.

(2) GUZ024, Sorol, is being removed.

(3) GUZ062, Ujelang, is being removed.

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

The following zones are being added, because they are important to tropical cyclone or drought operations and/or have been populated historically:

(1) Sonsorol,‚Äč PWZ007 and Tobi, PWZ008

(2) Onoun, FMZ025, Fananu, FMZ024 and Losap, FMZ022

(3) Pakin, FMZ014, Sapwuafik (Ngatik), FMZ015, Oroluk, FMZ016,

(4) Nukuoro, FMZ017 and Kapingamarangi, FMZ018

(5) Arno, MHZ001, Utirik, MHZ005, Kwajalein, MHZ008, Ujae, MHZ008 and Enewetak, MHZ010

 

Table 1: WFO Guam's Affected Public Weather Forecast Zones

 

Island Name

Current Zone number

New Zone number

Remarks

Guam

GUZ001

GUZ001

No change

Rota

GUZ002

MPZ001

Renumbered

Tinian

GUZ003

MPZ002

Renumbered

Saipan

GUZ004

MPZ003

Renumbered

Anatahan

GUZ005

MPZ004

Renumbered

Sarigan

GUZ005

N/A

Zone removed

Guguan

GUZ005

N/A

Zone removed

Alamagan

GUZ005

MPZ005

Renumbered

Pagan

GUZ005

MPZ006

Renumbered

Agrihan

GUZ005

MPZ007

Renumbered

Asuncion

GUZ005

N/A

Zone removed

Maug

GUZ005

N/A

Zone removed

Farallon de Pajaros

GUZ005

N/A

Zone removed

Arno

N/A

MHZ001

Zone added

Majuro

GUZ061

MHZ002

Renumbered

Wotje

GUZ067

MHZ003

Renumbered

Mili

GUZ068

MHZ004

Renumbered

Utirik

N/A

MHZ005

Zone added

Jaluit

GUZ065

MHZ006

Renumbered

Ailinglaplap

GUZ064

MHZ007

Renumbered

Kwajalein

N/A

MHZ008

Zone added

Ujae

N/A

MHZ009

Zone added

Enewetak

N/A

MHZ010

Zone added

Ujelang

GUZ062

N/A

Zone removed

Kosrae

GUZ051

FMZ001

Renumbered

Pingelap

GUZ043

FMZ011

Renumbered

Mokil

GUZ042

FMZ012

Renumbered

Pohnpei

GUZ041

FMZ013

Renumbered

Pakin

N/A

FMZ014

Zone added

Sapwuafik

N/A

FMZ015

Zone added

Oroluk

N/A

FMZ016

Zone added

Nukuoro

N/A

FMZ017

Zone added

Kapingamarangi

N/A

FMZ018

Zone added

Lukunor

GUZ033

FMZ021

Renumbered

Losap

N/A

FMZ022

Zone added

Chuuk Lagoon

GUZ031

FMZ023

Renumbered

Fananu

N/A

FMZ024

Zone added

Onoun

N/A

FMZ025

Zone added

Polowat

GUZ032

FMZ026

Renumbered

Satawal

GUZ026

FMZ031

Renumbered

Woleai

GUZ025

FMZ032

Renumbered

Faraulep

N/A

FMZ033

Zone added

Eauripik

N/A

FMZ034

Zone added

Fais

N/A

FMZ035

Zone added

Ulithi

GUZ023

FMZ036

Renumbered

Yap

GUZ021

FMZ037

Renumbered

Ngulu

GUZ022

FMZ038

Renumbered

Sorol

GUZ024

N/A

Zone removed

Kayangel

GUZ013

PWZ001

Renumbered

Melekeok

N/A

PWZ002

Zone added

Airai

N/A

PWZ003

Zone added

Koror

GUZ011

PWZ004

Renumbered

Peleliu

GUZ011

PWZ005

Renumbered

Angaur

GUZ011

PWZ006

Renumbered

Sonsorol

N/A

PWZ007

Zone added

Hatohobei

N/A

PWZ008

Zone added

 

 

 

Table 2: WFO Guam's Products Affected by These Changes

 

AWIPS ID

WMO Heading

Product Name

AFDGUM

FXPQ50 PGUM

Area Forecast Discussion

CFWGUM

WHMY40 PGUM

Coastal Hazard Message

CFWPQ1-2

WHPQ41 PGUM

Coastal Hazard Message

CWFPQ1-2

FZPQ51 PGUM

Coastal Waters Forecast

DGTGUM

AXGM70 PGUM

Drought Information Statement

ESFGUM

FGMY70 PGUM

Hydrologic Outlook

FLSGUM

WGMY80 PGUM

Flood Advisory

FFAGUM

WGMY60 PGUM

Flood Watch

FFWGUM

WGMY50 PGUM

Flash Flood Warning

HLSPQ1-5

WTPQ81 PGUM

Hurricane Local Statement

MWSPQ1-2

FZPQ71 PGUM

Marine Weather Statement

MWWPQ1-2

WHGM71 PGUM

Marine Weather Warning

NOWGUM

FPMY70 PGUM

Short-Term Forecast

NPWGUM

WWMY70 PGUM

Non-Precipitation Watch/Warning/Advisory

PFMGUM

FOMY50 PGUM

Point Forecast Matrix

PFMPQ1-2

FOPQ51 PGUM

Point Forecast Matrix

PNSGUM

NOPQ40 PGUM

Public Information Statement

SFTGUM

FPMY60 PGUM

Tabular State Forecast

SFTPQ1-2

FPPQ61 PGUM

Tabular State Forecast

SPSGUM

WWMY80 PGUM

Special Weather Statement

SPSPQ1-2

WWPQ81 PGUM

Special Weather Statement

SRFGUM

FZPQ50 PGUM

Surf Zone Forecast

SRFPQ1-2

FZPQ51 PGUM

Surf Zone Forecast

TIBGUM

WEGM42 PGUM

Tsunami Information Statement

TSUGUM

WEGM40 PGUM

Tsunami Message

ZFPGUM

FPMY50 PGUM

Zone Forecast

ZFPPQ1-2

FPPQ51 PGUM

Zone Forecast

 

NWS partners and users should take the appropriate action to ensure systems recognize the new UGC and new zone alignments and names. 

 

Updated public and marine zone shapefiles are online at:

https://www.weather.gov/gis/MarineZones

https://www.weather.gov/gis/PublicZones


 

For more information, please contact: 

 

Genevieve Miller  

Meteorologist-in-charge, WFO Guam

NWS Tiyan, GU

genevieve.miller@noaa.gov