Hawaii Extended Forecast Discussion
NWS Weather Prediction Center College Park MD
343 AM EDT Mon Apr 10 2023

Valid 00Z Tue Apr 11 2023 - 00Z Tue Apr 18 2023

A reasonably strong surface high to the north of Hawaii, between
35-40N latitude, will cause trade winds to strengthen to breezy to
windy levels over the next few days. With moisture levels around
average and some weak instability possible due to a weak trough
overhead, showers mainly in windward areas can be expected, but
some may make it to leeward areas given the strength of the winds.
Trades are forecast to lessen some by later this week as the high
shifts east and weakens. There may be a quick increase in moisture
and instability around Thursday before a drying trend later in the
week as an upper ridge builds just west of the state. More
moderate trades and more stable conditions are forecast to persist
through the weekend. After that, will monitor a possible wetter
pattern incoming around next Monday-Tuesday with upper and surface
lows northwest of the state, but there is ample uncertainty for
this at this point.

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