377
FXHW01 KWNH 160739
PMDHI
HAWAII EXTENDED FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
338 AM EDT WED AUG 16 2023
VALID 00Z THU AUG 17 2023 - 00Z THU AUG 24 2023
TROPICAL STORM GREG WILL PASS WELL TO THE SOUTH OF HAWAII,
LIMITING ANY APPRECIABLE SENSIBLE WEATHER IMPACTS. THE EXCEPTION
TO THIS MAY BE AN INCREASE IN TRADE WINDS BRIEFLY WEDNESDAY INTO
THURSDAY GIVEN A MODEST PRESSURE GRADIENT BETWEEN GREG AND HIGH
PRESSURE ACROSS THE NORTH PACIFIC. AFTER THIS, WINDS SHOULD RELAX
A BIT AS UPPER LEVEL RIDGING BUILDS OVER HAWAII WITH MOSTLY DRY
WEATHER. BY EARLY NEXT WEEK THOUGH, MODELS CONTINUE TO INDICATE
THAT THE REMNANTS OF HURRICANE FERNANDA IN THE EAST PACIFIC SHOULD
APPROACH HAWAII BRINGING AN UPTICK IN MOISTURE AND GUSTY WINDS
ACROSS THE ISLANDS. THE THREAT FOR HEAVY RAINFALL IS INCREASING
ACROSS ESPECIALLY THE SOUTHERN MOST ISLANDS, ALTHOUGH EXACT
RAINFALL AMOUNTS/IMPACTS ARE STILL QUITE UNCERTAIN.
SANTORELLI
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