Replacement of ETA-based MOS guidance with NAM-based MOS guidance

For those of us who follow the guidance products, this is an important update regarding ETA MOS data, from the National Weather Service:

TECHNICAL IMPLEMENTATION NOTICE 08-89
NATIONAL WEATHER SERVICE HEADQUARTERS WASHINGTON DC
255 PM EDT MON NOV 3 2008

TO:    SUBSCRIBERS:
     -FAMILY OF SERVICES
     -NOAA WEATHER WIRE SERVICE
     -EMERGENCY MANAGERS WEATHER INFORMATION NETWORK
     -NOAAPORT
     OTHER NWS PARTNERS...USERS AND EMPLOYEES

FROM:   JASON TUELL
     CHIEF...SCIENCE PLANS BRANCH
     OFFICE OF SCIENCE AND TECHNOLOGY

SUBJECT: REPLACEMENT OF ETA-BASED MOS GUIDANCE WITH NAM-BASED
     MOS GUIDANCE: EFFECTIVE DECEMBER 9 2008

REFER TO: PUBLIC INFORMATION STATEMENT...COMMENT PERIOD RELEASED
     JULY 21 2008.

EFFECTIVE TUESDAY DECEMBER 9 2008 WITH THE 1200 UNIVERSAL 
COORDINATED TIME /UTC/ CYCLE RUN...THE NWS WILL REPLACE THE 
MODEL OUTPUT STATISTICS /MOS/ GUIDANCE BASED ON THE ETA MODEL 
WITH MOS GUIDANCE BASED ON THE NORTH AMERICAN MESOSCALE /NAM/ MODEL.