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Hawaii Extended Forecast Discussion
 
(Caution: Version displayed is not the latest version. - Issued 1156Z Apr 05, 2014)
 
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Abbreviations and acronyms used in this product


HAWAII EXTENDED FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
756 AM EDT SAT APR 05 2014

VALID 00Z SUN APR 06 2014 - 00Z SUN APR 13 2014

A TROUGH ALOFT CROSSING THE CNTRL PAC WILL PUSH A COLD FRONT
ACROSS THE ISLANDS SAT NIGHT INTO SUN.  GUIDANCE CONTINUES TO SHOW
MINIMAL INCREASE IN DEEP MSTR ALONG THE FRONT SO MOST ACCOMPANYING
RNFL SHOULD BE ON THE LIGHT SIDE.  HIGH PRESSURE BUILDING IN
BEHIND THE FRONT WILL STRENGTHEN TRADES FOR THE FIRST HALF OF THE
WEEK... WITH A GRADUAL DECREASE IN PRIMARILY WINDWARD SHWR
ACTIVITY AS PWATS TREND BELOW AN INCH OVER MOST LOCATIONS BY
TUE-THU.  EXPECT TRADES TO BECOME LIGHTER LATE IN THE WEEK AS HIGH
PRESSURE CONTINUES INTO THE ERN PAC AND ANOTHER COLD FRONT
APPROACHES FROM THE NW.  THIS LATTER FRONT IS NOT FCST TO REACH
THE ISLANDS BUT TRAILING HIGH PRESSURE MAY SERVE TO STRENGTHEN
TRADES AGAIN BY NEXT SAT.  AT THAT TIME THE 00Z GEFS MEAN...
ECMWF/ECMWF MEAN... AND CMC/CMC MEAN ALL SUGGEST A SOMEWHAT
FARTHER SWD POSN AND/OR EXTENT OF HIGH PRESSURE RELATIVE TO THE
00Z GFS AND ESPECIALLY 06Z GFS... LEADING TO STRONGER TRADES THAN
FCST BY THE OPERATIONAL GFS RUNS.  ALOFT THE GFS RUNS DEVELOP MORE
TROUGHING ALOFT TO THE NE OF THE AREA VERSUS OTHER SOLNS BY NEXT
SAT.

RAUSCH