674
FXHW01 KWNH 200758
PMDHI
HAWAII EXTENDED FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
358 AM EDT TUE MAY 20 2025
VALID 00Z WED 21 MAY 2025 - 00Z WED 28 MAY 2025
MODERATE TO BREEZY EASTERLY TRADES ARE LIKELY THROUGH THE REST OF
THIS WEEK AS MIDLATITUDE SURFACE HIGH PRESSURE SYSTEMS TRACK WELL
NORTH OF HAWAII. A WEAK MIDLEVEL LOW CENTERED JUST EAST OF THE
STATE WILL GIVE WAY TO A BROADER TROUGH ALOFT FOR THE LATTER PART
OF THE WEEK, ALLOWING FOR A RAISED INVERSION, WHILE NORMAL TO
ABOVE NORMAL MOISTURE LEVELS ARE IN PLACE. THIS WILL ADD UP TO A
WET TRADE WIND PATTERN WITH SHOWERS FAVORING WINDWARD AND MAUKA
AREAS, AS WELL AS LEEWARD AREAS OF THE BIG ISLAND, WITH THE
HEAVIEST SHOWERS MOST LIKELY THURSDAY-FRIDAY. MODEL GUIDANCE
CONTINUES TO SHOW MOISTURE LEVELS DECREASING BY EARLY NEXT WEEK
ESPECIALLY FOR THE WESTERN ISLANDS, WHILE EASTERLY TRADES PERSIST.
TATE
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