The latest update to this website was at 7pm Wednesday (HST)

 

Here are the latest 24-hour precipitation totals (inches) for each of the islands as of Wednesday evening:

1.48  Mount Waialeale, Kauai
0.44  Lyon, Oahu
0.47  Puu Alii, Molokai
0.07  Lanai City, Lanai
0.55  Puu Kukui, Maui
0.89  Waiaha Stream, Big Island

The following numbers represent the strongest wind gusts (mph) as of Wednesday evening:

24  Port Allen, Kauai – ENE
31  Kuaokala, Oahu – ESE
23  Molokai AP, Molokai – NE
27  Lanai 1, Lanai – NE
38  Na Kula, Maui – E
29  Kealakomo, Big Island – NE

 

Hawaii’s Mountains – Here’s a link to the live webcams on the summit of our tallest mountain Mauna Kea (~13,800 feet high) on the Big Island of Hawaii, and atop the Haleakala Crater (~10,023 feet) on Maui. These webcams are available during the daylight hours here in the islands, and at night whenever there’s a big moon shining down. Also, at night you will be able to see the stars, and the sunrise and sunset too…depending upon weather conditions.

 

https://weather.gc.ca/data/satellite/goes_gwdisk11_1070_100.jpg

Big Blue…click twice for largest version

 

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A cold front far northwest of Kauai 

 

https://www.weather.gov/images/hfo/satellite/Hawaii_IR_loop.gif

A mix of high, middle level clouds are moving east…low clouds moving westward

 

https://radar.weather.gov/ridge/standard/HAWAII_loop.gif

https://radar.weather.gov/ridge/standard/PHKI_loop.gif

https://radar.weather.gov/ridge/standard/PHKM_loop.gif

Showers locally 

 

Please open this link to see details on any current Watches, Warnings and Advisories noted above

 

~~~ Hawaii Weather Narrative ~~~

 

Glenn’s Wednesday comments:  I’m here at home in upper Kula, Maui

It’s clear to partly cloudy here in Maui County early this morning, with a low temperature of 50 degrees at my place, with the relative humidity 72 percent.

133pm, I just got back from playing Pickleball in Haiku, which was very fun as usual. It’s partly to mostly cloudy here on Maui, and the temperature here at my Kula weather is 69.9 degrees, with the RH 70%.

We actually have some honest to goodness sunshine beaming down for a change, at least here on Maui!

7pm, and the fireworks are starting already in this area, nothing big and bold, although they sound more or less like normal fire crackers.

722pm, I’m starting to hear some bigger booms well off in the distance.

732pm, a major firework just got set off nearby, one of those ones that are very loud and go up and then explode!

Weather Wit of the day: Weather Forecaster – One who climbs the ladder of success wrong by wrong

>> Highest Temperature Wednesday, December 31, 2025 – 76 near La Presa, CA
>>> Lowest Temperature Wednesday, December 31, 2025 – minus 16 at Mount Washington, NH

 

New Year's Eve Celebrations in Lake Geneva

 

Hawaii’s Broad Brush Weather Overview:  Moderate trade winds will focus showers over windward and mountain areas into Thursday. A dissipating front will move across the islands Thursday night into Friday, leading to an increase in rainfall and stronger trade winds. Drier trade wind weather is favored on Saturday, giving way to a potential increase in showers and southeast winds Sunday and Monday.

Hawaii’s Weather Details: A stable and moderate trade wind flow continues to produce typical windward rainfall. A slow-moving and weak front not far north of Kauai sits between Hawaii and a moderately strong high centered far north. This is resulting in a slightly looser local pressure gradient and trade winds at only moderate strength. The high clouds that covered much of the island chain lately are clearing to the east,as an upper level trough flattens overhead and pushes the subtropical jet stream south of the islands.

A mid level ridge of high pressure is maintaining stable conditions, and showers in the trade wind flow have produced less than a tenth of an inch of rainfall over windward areas and a few showers over the Kona slopes of the Big Island. Expect little change into New Year’s Day as the weakening cold front drifts southward toward the islands.

The dissipating front will move down the island chain Thursday night and Friday, leading to increased showers and strengthening trade winds. The shallow band of moisture along the feature will reach Kauai around sundown on New Year’s Day, sag southward to Oahu and Maui County overnight, then reach Big Island on Friday. The remnant front will be quite shallow, and with a weak mid-level ridge holding, there will be no upper level support for heavier showers.

As a result, expect wet conditions windward, and as the surface high to the north strengthens, breezy trades will likely carry brief periods of showers over leeward areas from Kauai to Maui. Breezy trade winds should push much of the moisture clear of the islands on Saturday.

Uncertainty remains somewhat high for Saturday night into Monday, though the latest runs of the ECMWF and GFS models have come into better agreement. An amplified ridge aloft north of Hawaii will break down late Saturday as a portion of an upper level trough near the Dateline moves westward toward the state. This upper trough should induce surface low pressure several hundred miles west of Kauai, causing local winds to increase and veer southeasterly Saturday night and Sunday.

As the upper level trough moves near then over the state later Sunday into Monday, layered high clouds should spread over the area with heavy showers, and possibly thunderstorms, developing near or just west of the islands. There is still quite a bit of uncertainty on the details, but chances for unsettled weather are increasing.

Here’s a near real-time Wind Profile of the Pacific Ocean – along with a Closer View of the islands / Vog map animation / 8-Day Precipitation model

https://www.weather.gov/images/hfo/graphics/npac.gif 

 

Hawaii’s Marine Environment: Moderate to locally strong easterly trade winds will continue through the week as high pressure builds north of the islands. A Small Craft Advisory was extended through Thursday for the typically windy waters around Maui County and the Big Island. Combined seas for coastal waters will peak just under the Small Craft Advisory threshold.

Overlapping moderate, medium period northwest (310-320 degree) and north-northwest (340-350 degree) swells will keep surf heights along north and west facing shores at advisory thresholds, then decline just under advisory levels early Thursday. Recent buoy obs continue to show the primary north-northwest swell running around 1 to 2 feet above the global wave models. Therefore the High Surf Advisory for north and west facing shores of Niihau, Kauai, Oahu, and Molokai and north facing shores of Maui and the Big Island will continue. A moderate, medium period north (360-020 degree) swell will then move into Hawaiian waters by Friday, possibly producing moderate surges in north facing harbors.

Choppy east shore surf will continue into the weekend as locally breezy trade winds continue. Surf along south facing shores will remain tiny to small through the forecast period.

Peak astronomical monthly tides may result in minor coastal flooding are possible from Thursday through early next week, and may be enhanced along north facing shores later this week due to the next north swell.

 

10,100+ Polynesian Woman Stock Photos, Pictures & Royalty-Free Images - iStock



World-wide Tropical Cyclone Activity

 

Atlantic Ocean:  There are no active tropical cyclones

Caribbean Sea:  There are no active tropical cyclones

Gulf of America:  There are no active tropical cyclones

 

Northeastern Pacific:  There are no active tropical cyclones

North Central Pacific: There are no active tropical cyclones

Here’s the link to the National Hurricane Center (NHC)

 

Northwest Pacific Ocean:  There are no active tropical cyclones

Southwest Pacific Ocean:  There are no active tropical cyclones

North and South Indian Ocean:  There are no active tropical cyclones 

South Indian Ocean:

Tropical Cyclone 09S (Grant)…is located approximately 581 NM south-southwest of Diego Garcia

https://www.metoc.navy.mil/jtwc/products/sh0926.gif

Tropical Cyclone 11S…is located approximately 695 NM north-northwest of Learmonth, Australia

Arabian Sea: There are no active tropical cyclones

Here’s a link to the Joint Typhoon Warning Center (JTWC)

 

>>> Here’s a link to the Pacific Disaster Center’s (PDC Global) Weather Wall website

 

Interesting:  Leaves’ Pores Explain Longstanding Mystery of Uneven Tree Growth in a Carbon-Enriched World

The mechanics of how water and carbon dioxide move in and out of plants greatly affects how trees grow in a carbon-dioxide-enriched environments.

The basics of photosynthesis are something that every student learns in school: carbon dioxide, water and light in; oxygen and sugar for growth out. In a world where atmospheric carbon dioxide levels are rising, it is plausible to think that trees and other plant life growth will rise in lockstep.

But that is not what observations have borne out. As global levels of carbon dioxide have risen, measurements of tree growth—and how much carbon they are storing for the long-term—have varied greatly. How much of that variance can be attributed to carbon dioxide levels has long been unknown.

Read more at: Duke University

Image: A highly magnified view of a single stoma on the leaf of a boat lily (Tradescantia spathacea). The stoma is opening and closing in response to changing levels of carbon dioxide and humidity.