High Surf Advisory

...HIGH SURF ADVISORY FOR NORTH AND WEST FACING SHORES OF NIIHAU KAUAI OAHU MOLOKAI AND NORTH FACING SHORES OF MAUI... ...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 6 AM HST SATURDAY... * SURF...12 to 18 feet along north and west facing shores of Niihau and Kauai and north facing shores of Oahu, Molokai and Maui. 8 to 12 feet along west facing shores of Oahu and Molokai.

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6-10+ foot
5-8+ foot
1-4 foot
2-4 foot

Fresh to strong northerly winds will continue to fill in across the waters today as a front moves down the island chain. Seas have already responded at the exposed nearshore PacIOOS buoys, which are expected to remain around the advisory mark (10 ft) through the weekend. As a result, the small craft advisory remains in place for all waters to account for a combination of winds and seas. Winds will shift to a more typical trade wind direction Sunday night into early next week, potentially holding in the fresh to strong category as high pressure builds north of the islands.

A combination of strong northerly winds and a reinforcing northerly swell filling in above predicted levels will keep surf heights around advisory levels for exposed north and west facing shores of the smaller islands. These conditions will hold through Sunday, then slowly ease early next week. A small northwest swell is expected to fill in Monday with a larger reinforcing north- northwest swell expected Tuesday through midweek. This reinforcement will likely support advisory-level surf for exposed north and west facing shores by Tuesday night.

A moderate long-period southwest swell filling in will peak today at heights around the summer average, then gradually ease into early next week.

Hawaii Wave Height Model

Tide Predictions

High tide at Kahului was 2.58 foot at 2:00 PM early this afternoon, dropping to a low of 0.98 foot at 2:00 PM early this afternoon, then rising to a high of 1.42 foot at 2:00 PM early this afternoon, before once again dropping to a low of -0.06 foot at 2:00 PM early this afternoon.

The sunrise was at 06:32 am this morning and will set at 05:47 pm this evening. The Moon is currently 3 days old, and is in a Waxing Crescent phase. The next First Quarter will occur at 2:54 PM on Thursday, November 15th.

Hawaii Wind Report

Maui Weather

°/°
Wind: n/a at 0 mph
Sunrise:
Sunset:
current observations as of 11pm November 16th, 2018

Weather Outlook for Saturday, 10th November 2018

Summary

A weak front over Oahu will continue moving down the island chain through Sunday. Passing showers will accompany the frontal passage with drier and cooler weather expected in its wake. A trade wind weather pattern will then dominate through the first half of next week as high pressure passes by north of the state. Winds will become lighter later in the week with an uptick in shower activity becoming a possibility.

Detailed Discussion

A frontal cloud band over Oahu continues to move east this morning, spreading showers across Oahu and adjacent waters. Moisture and instability along and near the frontal boundary continue to produce moderate to briefly heavy showers over windward Oahu, with residual showers continuing to affect areas behind the front over Kauai. This front is forecast to move over Maui county today and the Big island tonight. Passing showers will accompany frontal passage, especially over windward and mauka areas. Winds remain rather light east of the front, with strengthening north to northeast winds noted behind the front.

Cooler and drier air will fill in behind the front. However, leftover moisture will likely fuel light showers over some windward and mauka areas. Most leeward locations will remain rather dry into the first part of next week. Expect breezy trade winds during the first half of next week as a high passes by north of the area.

By Wednesday and Thursday, the high will be positioned far northeast of the area. Trade winds will become a bit lighter as the pressure gradient relaxes over the area. Models show there may be an increase in moisture and shower activity later in the week.

Central Valley (Kahului, Spreckelsville):

HIGH SURF ADVISORY IN EFFECT UNTIL 6 PM HST SUNDAY. Breezy. Partly sunny with scattered showers. Highs around 82. Northeast winds 10 to 20 mph. Chance of rain 40 percent.

Leeward West (Lahaina, Ka`anapali):

Windy. Partly cloudy with isolated showers. Lows around 68. Northeast winds 15 to 30 mph. Chance of rain 20 percent.

Windward West (Wailuku, Waiehu):

HIGH SURF ADVISORY IN EFFECT UNTIL 6 PM HST SUNDAY. Breezy. Numerous showers in the morning, then occasional showers in the afternoon. Highs 66 to 81. Northeast winds 10 to 25 mph. Chance of rain near 100 percent.

Windard Haleakala (Hana, Haiku, Makawao):

HIGH SURF ADVISORY IN EFFECT UNTIL 6 PM HST SUNDAY. Breezy. Occasional showers. Highs around 78 at the shore to around 64 at 5000 feet. Northeast winds up to 20 mph. Chance of rain near 100 percent.

Leeward Haleakala (Kihei, Wailea, Makena):

Mostly clear. Breezy. Isolated showers in the evening. Lows around 68 at the shore to around 56 upcountry. Northeast winds up to 20 mph. Chance of rain 20 percent.

Haleakala Summit

Breezy. Partly cloudy with scattered showers. Lows around 47 at the visitor center to around 43 at the summit. North winds up to 20 mph. Chance of rain 50 percent.

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