Skip Navigation Links   
NOAA logo - Click to go to the NOAA homepage National Weather Service   NWS logo - Click to go to the NWS homepage
National Hurricane Center
Local forecast by
"City, St" or "ZIP"

Alternate Formats
   Text     |   Mobile
   Email   |   RSS XML/RSS logo
   About Alternates
Cyclone Forecasts
   Latest Advisory
   Past Advisories
   About Advisories
Marine Forecasts
   Atlantic & E Pacific
   Gridded Marine
   About Marine
Tools & Data
   Satellite | Radar
   Analysis Tools
   Aircraft Recon
   GIS Datasets
   Data Archive
   Forecast Accuracy
Outreach & Education
   Storm Surge
   About Cyclones
   Cyclone Names
   Wind Scale
   Most Extreme
   Forecast Models
   Glossary | Acronyms
   Frequent Questions
Our Organization
   About NHC
   Mission & Vision
   Staff | Q&A
   Visitors | Virtual Tour
   Library Branch
   NCEP | Newsletter
Contact Us
Follow the National Hurricane Center on Facebook Follow the National Hurricane Center on Twitter
Subscribe the National Hurricane Center on YouTube Read the National Hurricane Center Inside the Eye blog on WordPress is the U.S. Government's official Web portal to all Federal, state and local government Web resources and services.

Service Change Notice

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:

Quick Navigation Links:
Tropical Cyclone Forecasts  -  Tropical Marine Forecasts  -  Data Archive
Outreach  -  Prepare  -  About Cyclones  -  About NHC  -  Contact Us

NOAA/ National Weather Service
National Centers for Environmental Prediction
National Hurricane Center
11691 SW 17th Street
Miami, Florida 33165 USA
Information Quality
Privacy Policy
Freedom of Information Act (FOIA)
About Us
Career Opportunities
Page last modified: Friday, 28-Feb-2014 19:30:28 UTC