FXHW01 KWNH 130819
PMDHI

Hawaii Extended Forecast Discussion
NWS Weather Prediction Center College Park MD
319 AM EST Fri Nov 13 2026

Valid 00Z Sat 14 Nov 2026 - 00Z Sat 21 Nov 2026

Moderating trade winds will continue into the first part of the 
weekend following a frontal passage as high pressure weakens to 
the north. Daily Mauka/windward showers are possible, though any 
showers should remain light. Thereafter, another dissipating front
and relatively stronger area of high pressure in its wake passing
to the northeast will bring renewed gustier trades later this 
weekend and into early next week. Stronger flow and greater 
moisture along/ahead of the dissipating boundary will lead to a 
period of more moderate to heavy Mauka/windward showers through 
mid-next week, particularly for the Big Island. Shower activity 
should trend downward again by late next week. 

Putnam