907
FXHW01 KWNH 310759
PMDHI
HAWAII EXTENDED FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
258 AM EST FRI JAN 31 2025
VALID 00Z SAT FEB 01 2025 - 00Z SAT FEB 08 2025
AT THE TIME OF THIS WRITING, HEAVY RAIN AND THUNDERSTORMS ARE
ONGOING ACROSS CENTRAL HAWAII AS A PLUME OF MOIST (AROUND THE 90TH
PERCENTILE FOR PRECIPITABLE WATER VALUES) AND UNSTABLE AIR ADVECTS
INTO MAUI AND NEARBY ISLANDS. THE MOISTURE PLUME WILL GRADUALLY
SHIFT SOUTHWARD ACROSS THE STATE TODAY (FRIDAY) AND IMPACT THE BIG
ISLAND WITH HEAVY RAIN AND THUNDERSTORMS (AND SNOW ATOP THE HIGH
SUMMITS). ADDITIONAL FLOODING IS A CONCERN FOR CENTRAL ISLANDS
INTO THE BIG ISLAND. SHOWERS ARE ALSO POSSIBLE ALONG THE ACTUAL
COLD FRONT FARTHER WEST IN KAUAI, WITH MUCH LESSER RAIN AMOUNTS.
RAIN COULD LAST ACROSS THE BIG ISLAND INTO SATURDAY, BUT THE REST
OF THE ISLANDS CAN EXPECT POST-FRONTAL DRIER AND COOLER CONDITIONS
WITH WINDS GRADUALLY TURNING FROM NORTHWESTERLY TO NORTHEASTERLY
THROUGH THE WEEKEND. NORTHEASTERLY WINDS LOOK TO CONTINUE INTO
EARLY NEXT WEEK AND BE A BIT BREEZIER, BUT ARE FORECAST TO WEAKEN
TO BY MIDWEEK AND BEYOND FOR PERHAPS SOME LAND/SEA BREEZES IN A
GENERALLY DRY ENVIRONMENT.
TATE
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