HAWAII EXTENDED FORECAST DISCUSSION NWS HYDROMETEOROLOGICAL PREDICTION CENTER CAMP SPRINGS MD 637 AM EDT TUE MAY 29 2012 VALID 00Z WED MAY 30 2012 - 00Z WED JUN 06 2012 THE MODELS AND ENSEMBLES STILL AGREE THAT A STRONG MID TO UPPER LEVEL RIDGE TO THE NORTH AND NORTHWEST OF THE STATE ELONGATING E-W ALONG 30N AND PERSISTING THROUGH THE WEEKEND INTO NEXT WEEK. THE MODELS ALSO SHOW A CLOSED 500 MB LOW EAST OF THE ISLANDS WHICH SLOWLY DRIFTS WEST THE REST OF THIS WEEK THROUGH THE WEEKEND...POSSIBLY REACHING THE ISLANDS NEXT WEEK. POCKETS OF DRY AIR ROTATING AROUND THE ANTICYCLONE ADVECT ACROSS THE ISLANDS...WITH FORECAST PRECIPITABLE WATER VALUES MOSTLY BELOW NORMAL. MODERATE TO STRONG SURFACE HIGH PRESSURE AND MAINTAIN BRISK TRADES INTO MID WEEK...WITH SUPPORTING PRESSURE GRADIENTS AND TRADES GRADUALLY SLACKENING SOMEWHAT TO MODERATE/LOCALLY BRISK LEVELS NEXT WEEK. IN THIS PATTERN EXPECT SHOWERS WILL BE MAINLY LIMITED TO WINDWARD TERRAIN. PETERSEN