391
FXHW01 KWNH 090836
PMDHI
HAWAII EXTENDED FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
436 AM EDT THU OCT 9 2025
VALID 00Z FRI 10 OCT 2025 - 00Z FRI 17 OCT 2025
BROAD BUT WEAK SOUTHERLY FLOW WILL BE IN PLACE ACROSS HAWAII OVER
THE NEXT DAY OR TWO, WHICH COULD ALLOW FOR LAND/SEA BREEZE
CONDITIONS AND SCATTERED SHOWERS FOCUSING OVER THOSE CONVERGENCE
AREAS. WINDS SHOULD BACK TO A MORE TYPICAL EASTERLY TRADE
DIRECTION BY THE WEEKEND AS A MIDLEVEL HIGH BUILDS SOUTHEAST OF
THE STATE WHILE A WEAK SURFACE RIDGE DEVELOPS AS WELL. INTO NEXT
WEEK, AN UPPER LOW IS FORECAST TO DIVE SOUTH TOWARD HAWAII, WHICH
WILL PROVIDE A RISING INVERSION AND INCREASING LIFT, WHILE ABOVE
NORMAL MOISTURE COMES IN. THIS WILL YIELD INCREASING RAIN CHANCES
ESPECIALLY FOR KAUAI/OAHU AROUND MONDAY TO WEDNESDAY. THERE IS
MORE MODEL SPREAD ON WHEN THIS UPPER LOW WILL RETROGRADE AND EXIT
THE STATE LATER WEEK, WITH GFS/GEFS GENERALLY FASTER TO MOVE IT
OUT THAN THE EC SUITE.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page