NOUS41 KWBC 281559



Service Change Notice 14-10

National Weather Service Headquarters Washington DC

1100 AM EST Fri Feb 28 2014


To:      Subscribers:

         -Family of Services

         -NOAA Weather Wire Service

         -Emergency Managers Weather Information Network


         Other NWS Partners and NWS Employees


From:    Eli Jacks

         Chief, Fire and Public Weather Services Branch


Subject: Changes in Fire Weather Forecast Zones for Puerto Rico

         and the U.S. Virgin Islands Effective April 1, 2014


Effective April 1, 2014, at 800 AM Atlantic Standard Time, 1200

Coordinated Universal Time (UTC), the NWS Weather Forecast Office

in San Juan, PR, will reconfigure the fire weather forecast zones

for Puerto Rico and the U.S. Virgin Islands to align with the

boundaries of the National Fire Danger Rating Areas. Upon

implementation of this change, all fire weather forecasts and

related products for PR and the USVI will use the zone number and

name shown below.


Specifically, fire weather zone PRZ020 was separated into 4 new

zones: PRZ025, PRZ026, VIZ001 and VIZ002 (including two new zones

for the Virgin Islands). Zone PRZ021 was separated into two

different mountain ranges: PRZ023 and PRZ024.


Table 1:  Fire weather products affected by these changes:


Product Name:                         WMO Heading     AWIPS ID

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

Fire Weather Planning Forecast        FNCA52 TJSJ     FWFSJU

Fire Weather Watch/Red Flag Warning   WWCA82 TJSJ     RFWSJU

Rangeland/Grassland Fire

Danger Statement                      FNCA52 TJSJ     RFDSJU


Table 2: Unchanged WFO San Juan Fire Weather Forecast Zones in PR

and the USVI


Zone Code   Zone Name

---------   ---------

PRZ014 South Coastal Plain and Mona Island

This zone includes the Aguirre State Forest, Guanica State

Forest, Guanica Dry Forest, Boqueron State Forest, the Cabo Rojo

and Cartagena Lagoon National Wildlife Refuges and the Mona

Island Nature Reserve in PR.


PRZ015 Southern Hills

This zone includes the south slopes of PR including the Maricao

State Forest.


PRZ016 North Coastal Plain

This zone includes the Pinones State Forest, and the cities of

Arecibo and San Juan, PR.


PRZ017 Northern Hills

This zone includes the north slopes of PR including the Guajataca

and Vega Alta State Forests.


PRZ018 West Coast

This zone includes the west coast of PR including the city of

Mayaguez, PR.


PRZ019 Eastern Interior

This zone includes the cities of Caguas and Humacao, PR.


PRZ022 Luquillo Mountain Range

This zone includes El Yunque National Rain Forest, PR.


Table 3: Changed WFO San Juan Fire Weather Forecast Zones in PR

and the USVI


New Zone Code   New Zone Name

---------- --   -------


PRZ023 Central Mountain Range

This zone includes the Rio Abajo and Guilarte State Forests and

Toro Negro Forest Reserve in PR.


PRZ024 Cayey Mountain Range

This zone includes the Carite State Forest Reserve, PR.


PRZ025 Vieques

This zone includes the Vieques National Wildlife Refuge, PR.


PRZ026 Culebra

This zone includes the Culebra National Wildlife Refuge, PR.


VIZ001 Saint Thomas and Saint John, USVI

This zone includes Charlotte Amalie and the Virgin Islands

National Park, USVI.


VIZ002 Saint Croix, USVI

This zone includes Christiansted and the Salt River Bay National

Historic Park, USVI.


These changes have been requested by and coordinated with the

USDA International Institute of Tropical Forestry, Puerto Rico

Fire Corps, US Fish and Wildlife Service and other fire weather

partners and users in PR and the USVI.

Additional information regarding these fire weather forecast

zones changes is online at:


Partners and users of WFO San Juan (SJU) fire weather products

will need to update their system(s) to continue receiving correct

fire weather forecasts/products.


An updated fire weather zone map shapefile containing the new

zones is online at:


For more information, please contact:


Roberto Garcia



Luis Rosa

Fire Weather Program Leader


NWS Weather Forecast Office

Carolina, PR 00979



National Service Change Notices are online at: