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PNSWSH

 

Service Change Notice 18-44

National Weather Service Headquarters Silver Spring MD

320 PM EDT Tue Apr 24 2018

 

To:         Subscribers:

            -NOAA Weather Wire Service

            -Emergency Managers Weather Information Network

            -NOAAPort

            Other NWS Partners and NWS Employees

 

From:       Allison Allen

            Chief, Marine, Tropical and Tsunami Services Branch

 

Subject:    CPHC will discontinue National Tropical Cyclone

            Watch/Warning products (TCV) effective on or 

            about June 1, 2018

 

Effective on or about June 1, 2018, the Central Pacific

Hurricane Center (CPHC) will discontinue issuance of its

national TCV products, which are provided in the following AWIPS

and WMO Headers:

 

AWIPS Header            WMO Header

------------        ----------

HFOTCVCP1           WTPA81 PHFO

HFOTCVCP2           WTPA82 PHFO

HFOTCVCP3           WTPA83 PHFO

HFOTCVCP4           WTPA84 PHFO

HFOTCVCP5           WTPA85 PHFO

 

The national TCV product from CPHC provides island-based Valid

Time Event Code (VTEC) for tropical cyclone wind hazards

including:

 

Hazard                    VTEC

------                    ----

Tropical Storm Watch      TR.A

Tropical Storm Warning    TR.W

Hurricane Watch           HU.A

Hurricane Warning         HU.W

 

The tropical cyclone wind hazards for the Hawaiian Islands are

issued using National Weather Service zone-based VTEC in the

local TCV product from Weather Forecast Office (WFO) Honolulu

(HFO). The Local TCV product from WFO HFO provides tropical

cyclone VTEC for the same area as the national TCV product from

CPHC, but with more geographic specificity. The local TCV is

provided in the following AWIPS and WMO Headers:

 

AWIPS Header        WMO Header

------------        ----------

HFOTCVHFO           WTHW80 PHFO

 

For information about VTEC, please see NWS Instruction 1703 at:

 

http://www.nws.noaa.gov/directives/010/010.php

 

The National TCV products for the Atlantic and the eastern North

Pacific issued by the National Hurricane Center will not be

affected by this change.

For additional information contact:

 

Jessica Schauer

NWS Tropical Services Program Lead

NWS Marine, Tropical and Tsunami Services Branch

Miami, FL 33165

305-229-4476

Tropical.Program@noaa.gov

 

National Service Change Notices are online at:

 

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

 

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