NOUS41 KWBC 251908



Public Information Statement, Comment Request

National Weather Service Headquarters Washington DC

308 PM EDT Thu Jul 25 2013


To:††††† Subscribers:

†††††††† -Family of Services

†††††††† -NOAA Weather Wire Service

††††††† -Emergency Manager Weather Information Network

†††††††† -NOAAPORT

†††††††† Other NWS partners and NWS employees


From:††† Mark Tew

†††††††† Chief, Marine and Coastal Weather Services Branch


Subject: Soliciting Comments on National Hurricane Center

†††††††† Experimental Extended Tropical Weather Outlook

†††††††† Through November 30, 2013


Effective 800 AM EDT August 1 and continuing through November 30,

2013, the NWS is seeking user feedback on an experimental

Extended Tropical Weather Outlook (TWO)issued by the National

Hurricane Center (NHC).


On an experimental basis the TWO text product produced by the NHC

for the Atlantic and East Pacific basins will include

probabilistic information, in 10-percent increments, about a

systemís potential for developing into a tropical cyclone in the

next 120 hours. Currently, the TWO only provides genesis

potential out to 48 hours. The extended forecast and discussion

will be embedded within the current TWO text product on a

disturbance-by-disturbance basis. Each product will include a

prominent statement that the 120-hr genesis forecasts are



The text TWO can be found on the web at:

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


Basin†††††††††† WMO Header††††††††† AI

Atlantic††††††† ABNT20 KNHC†††††††† MIATWOAT

East Pacific††† ABPZ20 KNHC†††††††† MIATWOEP

Feedback concerning this experimental service is welcomed at:


If you have comments or questions, please contact:


John F. Kuhn

Silver Spring, MD 20910

Telephone: 301-713-1677 X121



National Public Information Statements are online at: