NOUS41 KWBC 281847 CCA



Service Change Notice 14-12 Corrected

National Weather Service Headquarters Washington DC

145 PM EST Fri Feb 28 2014


To:      Subscribers:

         -Family of Services 

         -NOAA Weather Wire Service

         -Emergency Manager Weather Information Network


         Other NWS partners and NWS employees


From:    Mark Tew

         Chief, Marine and Coastal Weather Services Branch 


Subject: Corrected: Changes to the text Tropical Weather

         Outlook effective May 15, 2014


Corrected AWIPS Identifiers (AI)


Effective May 15 2014, the following changes to the text

Tropical Weather Outlook (TWO) will take place:


1. Extended (5-day) Tropical Weather Outlook (TWO) becomes

operational at the National Hurricane Center (NHC). The

experimental 120-hour genesis probabilities that were embedded

within the TWO for the Atlantic and east Pacific basins during

the 2013 hurricane season will become operational.  


2. NHC and Central Pacific Hurricane Center (CPHC) will provide

the genesis probabilities in a semi-tabular form immediately

following the discussion instead of embedding it within the



3. The TWO will be issued by NHC and CPHC in mixed case on an

experimental basis.  For additional details please see the

following Public Information Notice:


An example of the changes to the TWO can be found at:


The TWO is available online at:


Atlantic and east Pacific


Central Pacific


The WMO headers and AWIPS Identifiers (AI) for the text TWO are:  


Basin            WMO Header          AI

Atlantic         ABNT20 KNHC         TWOAT

east Pacific     ABPZ20 KNHC         TWOEP

central Pacific  ACPN50 PHFO         TWOCP

If you have questions regarding this notice, please contact:


John F. Kuhn

National Weather Service

Silver Spring, MD 20910



Phone: 301-713-1677 x121


Service Change Notices are online at: