0-3 foot
1-3 foot
0-2 foot
6-10 foot

Winds and seas will continue to gradually diminish through the weekend as high pressure to the distant northeast dissipates and a low to the northwest slowly moves away and weakens, with moderate to fresh east to east-southeast winds expected to prevail. A long-running Small Craft Advisory has been reduced in area, and now includes only the windier zones around Maui and the Big Island. A new, strong high will build far north of the area early next week, and aside from pushing a weak front through the islands around Tuesday, it will support moderate to fresh northeast to east-northeast trade winds that will likely require a continuation of the SCA in these same zones. Combined seas may increase to the point that the SCA will need to be expanded to additional zones late Monday and Tuesday.

A High Surf Advisory remains posted today for east facing shores, with surf expected to diminish below advisory levels on Sunday. Otherwise, the next advisory-level swell will arrive from the north-northeast on Tuesday and continue for most of next week, with potential for high surf along north and east facing shores. Additionally, a small, long-period west-northwest swell will arrive tonight and Sunday, followed by a slightly-larger (but below advisory-level) west-northwest swell Tuesday and Wednesday. A north-northeast swell will arrive over the next 24 hours and persist into Monday, while a small south-southwest to south swell is expected over the next several days.

Hawaii Wave Height Model

Tide Predictions

A single tide at Kahului will be foot at

tide at Kahului was foot at just after midnight, of foot at just after midnight, then of foot at just after midnight, before once again of foot at just after midnight

The sunrise was at 06:42 am this morning and will set at 06:32 pm this evening. The Moon is currently 16 days old, and is in a Waning Gibbous phase. The next Last Quarter will occur at 11:22 AM on Friday, March 9th.

Hawaii Wind Report

Maui Weather

°/°
Wind: n/a at 0 mph
Sunrise:
Sunset:
current observations as of 12pm December 14th, 2018

Weather Outlook for Saturday, 3rd March 2018

Summary

The high pressure ridge northeast of the islands continues to weaken and the low to the northwest slowly drifts northward. A jet stream aloft will continue to produce high cirrus clouds over the state with easterly trade winds and isolated to scattered showers through the weekend. On Monday, the trade wind directions will shift to northeasterly as the ridge builds in north of the state. A shallow cold front will move across the Hawaiian Islands from Monday evening through Tuesday morning with a brief increase in shower activity. Cooler and drier air will then move in behind the front from Tuesday afternoon through Wednesday.

Detailed Discussion

A low pressure center northwest of Kauai will drift slowly northward away from the state. The high pressure ridge northeast of the island continues to weaken with easterly trade winds forecast through Sunday. Meanwhile, a jet stream aloft will continue to produce extensive high cirrus clouds and scattered showers through the weekend. The greatest chances for rainfall will remain along windward and mauka slopes of each island this weekend with periods of showers drifting into leeward sections.

On Monday, the Central Pacific ridge will build in over the islands with trade wind directions becoming more northeasterly. A cold core low moves south into the Eastern Pacific basin. Northerly flow between the Central Pacific ridge and the East Pacific low will drive a shallow cold front across the Hawaiian Islands from Monday evening through Tuesday morning. Expect increased showers for this time period across the state.

Tuesday through Thursday, a more stable air mass with cooler and drier air behind the front will move across the islands by Tuesday afternoon with cooling temperatures and a drying precipitation trend lasting through Thursday. The latest long range American GFS model guidance continues to show an upper level low developing just northeast of the state. This upper low could help to destabilize the trade wind flow with increasing chances for showers possible by the end of next week. Confidence in this solution is only fair at this time as the European (ECMWF) model guidance has previously shown different solutions for the same time period. In any case we expect a trade wind weather pattern to dominate island weather conditions for at least the next seven days with some variations in rainfall activity.

Slight updates to the forecast grids were made to the latest production cycle. Decreased offshore winds on Sunday with updated forecast model guidance. Increased precipitation chances a bit on Monday night into Tuesday morning as the shallow front sweeps through the islands.

Central Valley (Kahului, Spreckelsville):

Breezy. Mostly cloudy with isolated showers. Lows 62 to 67. Northeast winds 15 to 20 mph. Chance of rain 20 percent.

Leeward West (Lahaina, Ka`anapali):

Breezy. Mostly cloudy with isolated showers. Lows 62 to 68. East winds 15 to 25 mph. Chance of rain 20 percent.

Windward West (Wailuku, Waiehu):

HIGH SURF ADVISORY IN EFFECT UNTIL 6 PM HST THIS EVENING. Cloudy and breezy. Isolated showers in the morning, then scattered showers in the afternoon. Highs 63 to 81. Northeast winds 10 to 15 mph shifting to the east 15 to 25 mph in the late morning and afternoon. Chance of rain 40 percent.

Windard Haleakala (Hana, Haiku, Makawao):

HIGH SURF ADVISORY IN EFFECT UNTIL 6 PM HST THIS EVENING. Breezy. Cloudy with scattered showers. Highs around 76 at the shore to around 62 at 5000 feet. East winds 15 to 25 mph. Chance of rain 50 percent.

Leeward Haleakala (Kihei, Wailea, Makena):

Mostly cloudy. Breezy. Lows around 64 at the shore to around 54 upcountry. Northeast winds 10 to 20 mph with gusts to 35 mph.

Haleakala Summit

Breezy. Mostly cloudy with isolated rain showers. Lows around 42 at the visitor center to around 35 at the summit. East winds 15 to 20 mph. Chance of rain 20 percent.

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