Honolulu residents should prepare for variable weather conditions this week, with moderate trade winds and increased shower activity forecasted. According to the National Weather Service, a weak trough moving westward across the state is expected to bring more showers starting tonight and into Monday, especially over the eastern parts of the islands.
For the outdoor enthusiasts looking to plan their week, expect showers primarily over windward and mountain slopes during the overnight to early morning hours. The National Weather Service reported, "The highest coverage for shower activity will develop over windward and mountain slopes in the overnight to early morning hours." Additionally, moderate to locally breezy trade winds should persist through Thursday as the ridge to the north strengthens, signaling potential changes for sea traversers.
Aviation alerts remain straightforward with no AIRMETs currently in effect. Pilots can anticipate light to moderate trade winds, with isolated showers (SHRA) favoring windward and mauka regions. While visibility reducing MVFR conditions may occur in showers, VFR conditions are expected to be generally maintained.
Mariners should note that despite gentle to moderate trade winds through early Monday, the marine forecasts suggest a potential need for increased caution by early Tuesday. "A Small Craft Advisory may be required for the notoriously windy eastern island bays and channels by early Tuesday," the National Weather Service stated. Surfers, meanwhile, can catch chest to head high waves along north shores today, as a moderate north swell is predicted to bring advisory level surf starting early Monday morning.
Currently, a High Surf Advisory is in effect from 6 AM Monday to 6 PM HST Tuesday, covering north-facing shores of Niihau, Kauai, Oahu, Molokai, Maui, and the Big Island. Residents and visitors to these areas should remain cautious and follow instructions from local authorities during this period.
