Glenn James
Hawaii Weather Today
Creator, Author, and Administrator for 30 years

 

The latest update to this website was at 835pm Tuesday evening HST


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

6.08  Kilohana, Kauai
3.00  Lyon, Oahu
2.34  Puu Alii, Molokai
0.10  Lanai City, Lanai
2.69  Puu Kukui, Maui
2.12  Kawainui Stream, Big Island


The following numbers represent the strongest wind gusts (mph) Tuesday evening: 

28  Barking Sands, Kauai – NNE
33  Kuaokala, Oahu – SSW
24  Anapuka, Molokai – NNE 
m  Lanai 1, Lanai – m
33  Kealia Pond, Maui – NE
30  Kohala Ranch, Big Island – NE


Hawaii’s Mountains – Here’s a link to the live webcam on the summit of our tallest mountain Mauna Kea (~13,800 feet high) on the Big Island of Hawaii. Here’s the webcam for the (~10,023 feet high) Haleakala Crater on Maui (out of operation). 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.

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Big Blue…click twice for largest version

 

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  Tropical Storm 06E (Fausto) will move by to our north…Category 4 Hurricane Genevieve moving away from Mexico 

 

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 TS Fausto’s northeast of Maui County

 

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Localized showers…very few 

 

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




~~~ Hawaii Weather Narrative ~~~

 

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

451am, it’s mostly clear here in upper Kula with calm winds, and a low temperature at my place of 60.5 degrees…with the relative humidity 84%

953am, very sunny and very muggy feeling here in upper Kula.

1218pm, it’s totally sunny and windy here in upper Kula, with the relative humidity a very low 51%

313pm, except for a few low clouds along the windward sides, which stretch over the West Maui Mountains, it’s as cloudless a day as we ever see here on Maui!

835pm, partly cloudy, which the big moon is using to beam down lots of reflected sunlight between the clouds.

 

>>> For more information about Tropical Storm Fausto and Hurricane Genevieve, please scroll down this page to the World-wide Tropical Cyclone Activity section

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time of arrival graphic

 

>>> Highest Temperature Tuesday, July 28, 2026 – 120 at Stovepipe, CA

>>> Lowest Temperature Tuesday, July 28, 2026 – 32 degrees near Bynum, MT

 

Hawaii’s Weather Highlights…as of Tuesday evening: Tropical Storm Fausto will track by Maui and the Big Island tonight allowing winds to become light and variable. Breezy northerly trade winds will hold over the western half of the state through tonight. Expect numerous clouds and light to moderate showers windward and northerly exposed slopes, with some spillage over the leeward areas.

Light and variable winds will then shift over Kauai and Oahu Wednesday while breezy southeast winds develop over the eastern end of the state, as Fausto continues to weaken and tracks northwest. In this lighter wind regime, land/sea breeze pattern will develop.

Localized heavy showers will remain possible through Wednesday. A stable and slightly drier breezy trade wind weather pattern will filter in across the state Thursday onward, as Fausto dissipates and the trailing tongue of moisture moves west of the islands.

Weather Narrative..as of Tuesday evening: Satellite imagery shows Tropical Storm Fausto northeast of Hilo. Bands of low level clouds spiraling from Fausto are moving in from the north and northeast, along the breezy low level wind flow produced between a high pressure system far northwest of the state and Fausto. Radar imagery and observations continue to show scattered, light to moderate showers focusing along windward and mountain locations, with some showers spilling over to leeward areas.

Hourly rainfall totals have trended down and are now ranging between .02 to .15 inches, with some of the wetter areas receiving around .25 inches. Rainfall rates will likely pick this evening along for the western half of the state. As Tropical Storm Fausto continues a west-northwest track north of the state, winds will become light and variable over the the Big Island and Maui County this evening. Under this light wind regime, land breezes will push any diurnal showers offshore over the eastern half of the state.

On Wednesday, Fausto is expected to pass 160 miles north of Oahu, allowing winds to weaken to light and variable while light southeast winds develop over Maui and the Big Island. Under this light and sheltered wind regime clouds and showers will be able to develop upslope of mountain ranges and over interior areas. Confidence in the flooding threat from Fausto remains low, but localized heavy showers can not be ruled out.

By Wednesday night, Fausto will continue to weaken into a remnant low and begin to gain distance northwest of the state, as breezy southeast winds fill across the island chain. Thursday through the rest of the forecast period. A strong high will develop northeast of the state allowing breezy to locally strong trade winds to return. Expect a more typical trade wind pattern, with showers focused mainly along windward and mountain areas. Drier air will also filter in by Friday.

 

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Here’s a near real-time Wind Profile of the Pacific Ocean – along with a Closer View of the islands / Here’s the latest Weather Map / Looping Surface Precipitation…through the next 8-days / Vog Map

 

Marine Conditions…as of Tuesday evening: Moderate to fresh north-northeast winds will be in place over the western half of the state as Tropical Storm Fausto nears the central islands. As Fausto passes by Wednesday, winds will be light and variable over the coastal waters, followed by southerly then southeasterly winds immediately in its wake. As Fausto moves off to the northwest, and high pressure builds to the north, east-northeast trades will build back in on Thursday, then strengthen to fresh to locally strong levels on Friday through the weekend. A Small Craft Advisory (SCA) remains in effect for the windward waters and channels due to high seas from the east swell.

Nearshore buoys on the eastern side of the islands are still running high with the medium- and long-period energy from Fausto, with the buoys near Oahu and Kauai coming up as well. The surf is expected to gradually drop off through Wednesday. A High Surf Warning for east facing shores remains in effect through Wednesday afternoon, but could be downgraded earlier, if surf heights drop faster than expected. East shore surf will trend back up Friday into the weekend, due to a combination of rising trade wind swell and a new long-period east swell generated by Hurricane Genevieve.

A series of south swells will keep south shore surf near the summer average through the week. Surf along N shores could also see some brief increase as Fausto (or its remnants) pass near the region through Wednesday, then return to typical flat to tiny levels late Wednesday into the weekend.

 

Rainbow Over Hawaii Skyline Stock Illustration - Illustration of view, beautiful: 367509812


World-wide Tropical Cyclone Activity


>>> Here’s a link to the latest Pacific Disaster Center’s Weather Wall


>>> Atlantic Ocean: There are no active tropical cyclones

Tropical cyclone formation is not expected during the next 7 days.

>>> Caribbean Sea: There are no active tropical cyclones

Tropical cyclone formation is not expected during the next 7 days.

>>> Gulf of America: There are no active tropical cyclones

Tropical cyclone formation is not expected during the next 7 days.

 

Northeast Pacific:

Hurricane 07E (Genevieve)…is located about 590 miles west-southwest of the southern tip of Baja California

MAJOR HURRICANE GENEVIEVE MOVING WEST-NORTHWESTWARD

According to the NHC Advisory number 20 

Genevieve is moving toward the west-northwest near 9 mph, and this general motion with a slight increase in forward speed is expected during the next few days. Maximum sustained winds are near 130 mph with higher gusts. Genevieve is a category 4 hurricane on the Saffir-Simpson Hurricane Wind Scale. Some fluctuations in intensity are possible over the next day or so, and a weakening trend should begin thereafter. Hurricane-force winds extend outward up to 35 miles from the center and tropical-storm-force winds extend outward up to 140 miles The estimated minimum central pressure is 948 mb (28.00 inches).

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

 

Central North Pacific: 

Tropical cyclone 06E (Fausto)…is located about 255 miles north-northeast of Hilo, Hawaii

FAUSTO CONTINUES TO GRADUALLY WEAKEN BUT SIGNIFICANT SURF STILL EXPECTED FOR THE HAWAIIAN ISLANDS OVER THE NEXT FEW DAYS

According to the NHC Advisory number 41 

Fausto is moving toward the west-northwest near 12 mph, and a generally west-northwestward motion is expected to continue for the next few days. On the forecast track, Fausto should pass north of the Hawaiian Islands tonight through late Wednesday. Maximum sustained winds have decreased to near 40 mph with higher gusts. Additional weakening is likely, and Fausto is expected to become a tropical depression early on Wednesday, and a remnant low by late Wednesday. Tropical-storm-force winds extend outward up to 160 miles to the northeast of the center. The estimated minimum central pressure is 1006 mb (29.71 inches).

 

>>> Northwest Pacific Ocean:  

Tropical cyclone 12W (Dolphin)…is located approximately 343 NM south-southeast of Wake Island  

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>>> Southwest Pacific Ocean: There are no active tropical cyclones

>>> North and South Indian Oceans / Arabian Sea: There are no active tropical cyclones

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



Interesting:  Nanoplastics Found in Antarctic Soils for the First Time

Scientists have found evidence of microplastics and nanoplastics in remote soils of Antarctica.

Sampling by an international team of researchers led by scientists at Lancaster University uncovered the presence of nanoplastics (less than a micrometer in diameter) in the soils of the McMurdo Dry Valleys – a particularly remote and ice-free region of Antarctica.

The study, published in the journal Nature Scientific Reports, shows plastics including polypropylene, polyethylene, PET, polystyrene, polyvinyl chloride and tire wear particles, were all found in McMurdo Dry Valleys soils during sampling in January 2023.

Read More at: Lancaster University