Low confidence in the upstream pattern from NOAA:
USED THE 00Z/18 ECMWF FOR THE PRELIMINARY FRONTS AND PRESSURES FOR DAYS 3 THROUGH 5...THEN THE 12Z/17 ECENS MEAN FOR DAYS 6 AND 7.
ALL THE DETERMINISTIC MODELS HAVE BEEN MARKED BY POOR RUN-TO-RUN CONTINUITY OVER THE PAST FEW CYCLES...WITH THE ECMWF THE MOST STABLE OF THE LOT. STILL...EVEN IT SEEMS TO BE STRUGGLING WITH THE UPCOMING PATTERN...WITH ITS DAY 6 AND 7 SOLUTION DIFFERENT
ENOUGH FROM ITS PAST TWO RUNS TO SINK CONFIDENCE IN ITS DETAILS. WHILE NOT THE BEST MATCH...THE 00Z/18 GEFS MEAN AND 12Z/17 ECENS MEAN AT LEAST POINT TOWARD A PLAUSIBLE MIDDLE GROUND AMONG THE DISPARATE DETERMINISTIC OPTIONS. NEEDLESS TO SAY...CONFIDENCE IS LOW FOR THIS PRELIMINARY FORECAST.
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