6-10 foot
2-4+ foot foot
0-2 foot
3-5 foot


A new northwest swell is expected to peak Saturday before lowering gradually Sunday. A High Surf Advisory is in effect for north and west facing shores of Niihau and Kauai and along north facing shores of Oahu Molokai and Maui through Saturday afternoon. Will keep an eye on the obs through the day today, but the Wavewatch III has a pretty good handle on this swell and expect it to slowly lower Saturday night and Sunday.

A much larger, long period northwest swell is expected to arrive Sunday night, with an extended period of warning level surf likely through much of next week. The largest surf is expected Tuesday and Wednesday, before the swell lowers gradually Wednesday night through Friday.

Strong southwest winds ahead of a cold front will combine with the large northwest swell to cause Small Craft Advisory conditions across some areas of the coastal waters as early as Sunday, expanding in coverage and lasting through early next week. The southwest winds ahead of the front will also cause an increase in short period, choppy surf along exposed south and west facing shores Sunday morning through Monday night, making for rough conditions. Winds behind the front will weaken by Tuesday evening, though seas will still be high enough to warrant an advisory through at least Wednesday night.

Hawaii Wave Height Model

Hawaii Swell Period Model
Hawaii Swell Height Model


Tide Predictions

Low tide at Kahului was 1.2 foot at 2:30 AM late last night, rising to a high of 1.4 foot at 7:00 AM this morning, then dropping to a low of 0.1 foot at 2:58 PM early this afternoon, before once again rising to a high of 1.8 foot at 11:12 PM shortly before midnight

The sunrise was at 06:59 am this morning and will set at 06:20 pm this evening. The Moon is currently 8 days old, and is in a Quarter phase. The next Waxing Gibbous will occur at 12:33 AM on Saturday, February 11th.

Hawaii Wind Report

Maui Weather

°/°
Wind: n/a at 0 mph
Sunrise:
Sunset:
current observations as of 9pm June 24th, 2018

Weather Outlook for Saturday

Weather Outlook for Saturday

High pressure will shift eastward and further away from the state today as a cold front begins to approach from the west. Kona winds will develop ahead of the front this afternoon and tonight, with winds becoming breezy to windy Sunday through Monday. A band of heavy showers and possibly thunderstorms will accompany the front as it moves through the island chain, pushing through Kauai Sunday night, through Oahu and into Maui County on Monday, and through Maui County and into the Big Island Monday night. The front will then shift through the Big Island on Tuesday, with high pressure and drier conditions expected Tuesday night through Thursday. Another cold front may move into the islands for the end of next week.

Currently at the surface, a 1021 mb high is centered around 1900 miles east-northeast of Hilo, with a ridge axis extending west- southwestward and through the central islands. Meanwhile, the cold front which will be bringing big changes in the weather to the Aloha state, is located around 825 miles west-northwest of Kauai. Infrared satellite imagery shows clear to partly cloudy skies in place across most of the state, with a persistent band of enhanced cloud cover continuing to reside over Oahu. Meanwhile, radar imagery shows rain free conditions in most areas with a few weak returns suggesting some sprinkles of very light showers may be falling over Oahu. Main concern over the next several days revolves around the changing weather conditions in association with the cold front moving through the island chain.

Today and tonight, High pressure will slowly lose its influence over the local weather as the cold front continues to push steadily eastward toward the island chain. Light winds are expected this morning, with Kona (southerly) winds beginning to develop this afternoon and steadily increasing tonight. The airmass will remain rather dry and stable through the period, with only isolated showers expected across the state. Volcanic haze will likely continue to impact Oahu and Maui County today and possibly into tonight before the increasing southerly winds shift the plume north of the smaller islands.

Sunday through Tuesday, The cold front is expected to remain west of the state through the day on Sunday, then push steadily eastward through the island chain Sunday night through Tuesday. The front is expected to move through Kauai late Sunday night, through Oahu and into Maui County on Monday, through Maui County and into the Big Island Monday night, then finally through the Big Island during the day on Tuesday. Strong south-southwest Kona winds are expected along and ahead of the front as it moves through the state Sunday through Monday, with breezy to windy conditions expected. High resolution model guidance is showing the potential for gusty downslope winds along and ahead of the front, with boundary layer winds suggesting gusts of 40 to 45 knots will be possible over and downwind of the higher terrain. For now will continue to highlight the potential for strong gusty winds in a Special Weather Statement, but a Wind Advisory may eventually be needed for the higher terrain and the typical windward locations in the Sunday through Monday time frame.

In addition to the winds, a band of heavy showers is expected to accompany the front as it moves through the area with precipitable water values rising to around or a bit above 2 inches. This should result in widespread rainfall across the area. At this time, the chances for flooding don’t appear particularly high, as the front should be progressive enough as it moves through the islands and boundary layer flow strong enough to prevent any heavy showers from lingering over any particular location for an extended period of time.

Although thunder chances don’t appear particularly high as the front moves through the state, surface based cape values do increase to around 500 J/KG with 0-6 KM bulk shear values climbing to between 35 and 45 knots which is supportive of organized convection. As a result, we will continue to mention a slight chance for thunderstorms in the forecast, although the more likely scenario is that we see a band of gusty convective showers moving through the area in association with the front.

Tuesday night through next Friday, The front will continue to push eastward and away from the Big Island Tuesday night with drier more stable conditions expected through Thursday as high pressure builds back over the island chain. The latest GFS and ECMWF solutions both suggest that another strong cold front may move into western sections of the state next Friday, bringing with it the potential for another round of Kona winds and some heavier showers.

Central Valley (Kahului, Spreckelsville):

HIGH SURF ADVISORY IN EFFECT UNTIL 6 PM HST THIS EVENING. Mostly sunny. Haze through the day. Isolated light showers in the afternoon. Highs around 82. Light winds becoming west up to 10 mph in the late morning and early afternoon, then shifting to the southwest late in the afternoon. Chance of rain 20 percent.

Leeward West (Lahaina, Ka`anapali):

Partly cloudy with isolated showers. Haze. Lows 60 to 66. Light winds becoming south up to 10 mph after midnight. Chance of rain 20 percent.

Windward West (Wailuku, Waiehu):

HIGH SURF ADVISORY IN EFFECT UNTIL 6 PM HST THIS EVENING. Mostly sunny. Haze through the day. Isolated light showers in the afternoon. Highs 68 to 80. Light winds becoming northeast up to 10 mph early in the afternoon, then becoming light late in the afternoon. Chance of rain 20 percent.

Windard Haleakala (Hana, Haiku, Makawao):

HIGH SURF ADVISORY IN EFFECT UNTIL 6 PM HST THIS EVENING. Mostly sunny. Haze through the day. Isolated light showers in the afternoon. Highs around 80 at the shore to around 63 at 5000 feet. Light winds becoming east around 10 mph in the late morning and early afternoon, then shifting to the south up to 10 mph late in the afternoon. Chance of rain 20 percent.

Leeward Haleakala (Kihei, Wailea, Makena):

Partly cloudy with isolated showers. Haze. Lows around 62 at the shore to 47 to 52 upcountry. South winds up to 10 mph. Chance of rain 20 percent.

Haleakala Summit

Mostly clear. Breezy. Isolated showers in the evening. Lows 42 to 47. Southwest winds 15 to 25 mph. Chance of rain 20 percent.

Photo of the Day

Surf Photo of the Day - February 4th, 2017