FORECAST DISCUSSION

TUESDAY 3Ast MARCH 2020 (PM SHIFT)

TODAY:

Few low-level clouds are seen driven along the Northeast windflow as seen on latest satellite imageries of this afternoon. Sounding profile depicted a dry and stable atmosphere. An strong upper-level Southwesterlies is directing some upper-level moisture over the group. The ridge of high pressure system to the Northeast is responsible for maintaining stable weather conditions for today. However, a weak short-wave trough is forecast to move over the islands towards tonight and may provide some instability for early tomorrow morning. Therefore, expect partly cloudy skies with brief showers with a chance of few thunderstorms.

WEDNESDAY THROUGH MONDAY:

The ridge axis of the high pressure system currently affecting the islands will shift Southwest of the group and will again turn winds to the Southeast with less rainfall activities affecting the group. The aforementioned ridge will continue to bring tradewinds over the islands with rainfall activities in the minimum through Thursday. However, the trough of low pressure to the South of the group may provide some instability for Friday and Saturday and also turning winds Northwest for Southern potions of the islands by Saturday. This system may provide some isolated showers for the weekend. However, another high pressure system from the Southwest will again provide stable weather conditions for the latter part of the outlook period.

MARINE OBSERVATION & OUTLOOK:

Observations from Aunu’u show waves within the range of 1.5-2 meters. Wave watch models and Aunu’u wave buoy forecast these activities to remain below the advisory threshold for the rest of the outlook period.

WARNINGS AND ADVISORIES

NONE

DUTY FORECASTERS:

A.Maua