20000331: 60 Hour ETA grid implementation schedule

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NOUS40 KWBC 312051
FOS/NOAAPORT NOTICE NO. 1637     MARCH 31... 2000

ATTENTION   FAMILY OF SERVICES SUBSCRIBERS
            NOAAPORT USERS

SUBJECT     CHANGES TO 4/DAY RUNS OF THE MESO ETA

REFERENCE   FOS/NOAAPORT NOTICES /1628 AND 635/

CHANGES TO THE ETA GRIDS WILL BE IMPLEMENTED IN THREE PHASES.
THE PHASES ARE AS FOLLOWS

PHASE I
EFFECTIVE DATE    MONDAY... APRIL 3... 2000
TIME              STARTING WITH THE 12Z RUN

ETA GRIDS         RUN TIMES        HOURS
211               00Z AND 12Z      FROM 48 HRS. TO 60 HRS.


PHASE II
EFFECTIVE DATE    TUESDAY... APRIL 4... 2000
TIME              STARTING WITH THE 12Z RUN

ETA GRIDS         RUN TIMES          HOURS
212/215           00Z AND 12Z        FROM  0 HRS. TO 48 HRS.
                  06Z AND 18Z        FROM 30 HRS. TO 48 HRS.

PHASE III
EFFECTIVE DATE    WEDNESDAY... APRIL 5.. 2000
TIME              STARTING WITH THE 12Z RUN

ETA GRIDS         RUN TIMES          HOURS
212/215           00Z AND 12Z        FROM 48 HRS. TO 60 HRS.
                  06Z AND 18Z        48 HRS. /NO CHANGE/

PROCEEDING FROM PHASE I TO PHASE II AND PHASE II TO PHASE III
IS DEPENDED UPON NO IMPACT TO NWS SYSTEMS FOR THE PREVIOUS
PHASE.  CHANGES TO THE SCHEDULE WILL BE ISSUED AS NECESSARY.
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