AWIPS CHANGE NOTICE NO. 0303A
                   EFFECTIVE DATE:  MAY 30, 2000

(DRG2501) ON THE ABOVE EFFECTIVE DATE, THE FOLLOWING NEW AVN-BASED 
MOS GUIDANCE PRODUCTS WILL BE ADDED TO THE AWIPS/NOAAPORT
DATASTREAM.  THE AVN-BASED MOS GUIDANCE WILL GO OUT TO 72 HOURS
FOR TEMPERATURE, DEW POINT, MAX/MIN TEMPERATURE, AND WIND
DIRECTION AND SPEED FOR OVER 1000 SITES; AND MORE ELEMENTS WILL
BE ADDED OVER THE NEXT FEW MONTHS.

PAUL DALLAVALLE, (301) 713-1065, EXTENSION 174, OR (301) 763-8151,
IS THE COGNIZANT TECHNICAL INDIVIDUAL.  ANTHONY ROBINSON, (301)
713-1373, EXTENSION 110, IS THE DRG FOCAL POINT FOR THIS ITEM.

THE FOLLOWING PRODUCTS WILL BE ADDED TO THE AWIPS/NOAAPORT
DATASTREAM:

AWIPS ID    WMO HEADER
--------    ----------

MAVPA0      FOPA20 KWNO
MAVNE1      FOUS21 KWNO
MAVSE1      FOUS22 KWNO
MAVNC1      FOUS23 KWNO
MAVSC1      FOUS24 KWNO
MAVRM1      FOUS25 KWNO
MAVWC1      FOUS26 KWNO
MAVAJK      FOAK37 KWNO
MAVAFC      FOAK38 KWNO
MAVAFG      FOAK39 KWNO

LLOYD E. IRVIN, CHIEF, GRAPHICS & DISPLAY SECTION