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

 

The latest update to this website was at 6pm Thursday evening HST


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

0.33  Mount Waialeale, Kauai
0.27  Moanalua RG, Oahu
0.10  Honolimaloo, Molokai
0.00  Lanai
0.51  Puu Kukui, Maui
0.52  Kawainui Stream, Big Island


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

25  Port Allen, Kauai – ENE
31  Kuaokala, Oahu – SSE
28  Molokai AP, Molokai – NE
m   Lanai – missing
33  Na Kula, Maui – W
31  Mamalahoa, 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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The tropical waters southeast and east-southeast of the islands are showing two tropical cyclones 

 

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 Variable clouds across the state 

 

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Localized showers 

 

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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 Thursday comments:  I’m at home here in upper Kula, Maui, Hawaii

450am, it’s clear here at my place here in Kula with a low temperature of 53.5 degrees, and the relative humidity is 82%

920am, I find it interesting that newly formed tropical cyclone Dolly in the Atlantic Ocean, has that name…after we just lost our wonderful Dolly Parton! The NHC didn’t hand pick this name, it was actually the next name in the long list of upcoming tropical cyclone names!

PDC Weather Wall

 

Tropical Cyclone Lowell has spun up in the eastern Pacific, and as we continue to be in the heart of our hurricane season, we need to keep our eyes peeled for any potential systems taking aim on our fragile Hawaiian Islands.

As such, the NHC has begun advisories on two tropical cyclones in the eastern Pacific, at least one of which could work its way in our general direction, entering our central Pacific Sunday, and then progressing in a general west-northwest direction into next week.

This first TC has taken on the name Tropical Storm Lowell, although is forecast to become a hurricane this weekend. The current forecast track shows Lowell could be staying more or less to the south of the islands, although as we all know…things can change. The other storm named earlier today, Tropical Storm Karina, is not expected to pose a direct threat to the islands at this time.

cone graphic

time of arrival graphic

 

Hawaii’s Weather Highlights…as of Thursday evening: Moderate to locally breezy trades will continue through early next week. These trades are relatively dry and stable, leading to typical summertime windward and/or upslope light showers.

Tropical Storm Lowell has formed well southeast of the state, and is currently forecast by NHC to eventually move west to west-northwest. It might approach the state between roughly September 4-7th, but at this time range, uncertainty is quite large. NHC will continue to issue forecasts every 6 hours as Lowell develops.

Weather Narrative..as of Thursday evening: Satellite shows mostly clear skies for most of the state, with exceptions confined to some windward and mountain areas. Showers have been isolated and light so far, with reports of just a few hundredths in most areas, up to a third of an inch in parts of windward Big Island. Winds were averaging 10 to 20 mph, with gusts 30 to 35 mph in the usual windier locations (such as Kahului, the Molokai airport, and near the top of the Koolau mountains on Oahu, to name a few).

A large surface high pressure system was centered well northeast. It is forecast to remain nearly stationary through Saturday, before shifting westward through Monday. By next Wednesday, it should move east and end up right about where it started. This will keep trade winds going well into next week.

The lower levels of the atmosphere will stay relatively stable and dry through at least next Tuesday. Therefore, expect typical summertime showers, mainly windward and mountains. Wind speeds are expected to stay elevated, but below wind advisory criteria.

An increase in moisture may arrive next Wednesday. The National Hurricane Center has begun issuing forecasts for Tropical Storm Lowell. Long-range models show Lowell may move toward the state. General model consensus this far out shows that if it comes toward Hawaii, it could arrive sometime between the 4th and 7th of September. The other storm named earlier today, Tropical Storm Karina, is not expected to pose a direct threat to the islands at this time. But this far out, nothing is certain.

Fire Weather: Relatively dry air and moderate to locally breezy trade winds will continue to bring moderate fire weather concerns through early next week. Conditions may get close to criteria if the approaching airmass proves to be drier than forecast, especially Friday and Monday.

 

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


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 Thursday evening: Dominant high pressure will keep moderate to locally strong trade winds in place through the middle of next week. A Small Craft Advisory for the typically windier waters around Maui County and the Big Island will continue through tomorrow and will likely need to be extended for the next several days.

Surf along south facing shores will hold just below advisory levels through tomorrow as a small, long period south southwest swell continues. The swell will gradually fade through the weekend. Then another similar sized south swell is expected by the middle to the later half of next week.

Surf along east facing shores will remain rough and choppy due to persistent trade wind swell. A small, medium period east swell from Tropical Storm Iselle may fill in Friday, peak Saturday before slowly fading into early next week. Additional medium period east swell is possible next week, resulting from Tropical Storms Karina and Lowell. This swell will depend on their track and intensity.

Surf along north facing shores will remain tiny to flat.

 

>>> Highest Temperature Thursday, August 27, 2026 – 121 degrees at Death Valley, CA


>>> Lowest Temperature Thursday, August 27, 2026 – 32 degrees at Parker Sinks, UT

 

Hawaii Tours - Oahu Nature Tours - Oahu Circle Island Adventures


World-wide Tropical Cyclone Activity

 


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



Atlantic Ocean:

Tropical Cyclone 04L (Dolly)…is located about 1315 east of the leeward islands


DOLLY CONTINUES MOVING RAPIDLY WESTWARD…INTERESTS IN THE LEEWARD ISLANDS SHOULD MONITOR ITS PROGRESS


According to the NHC advisory number 3

Dolly is moving toward the west near 23 mph (37 km/h), and this motion is expected to continue for the next couple of days. On the forecast track, this system should be nearing the Leeward Islands this weekend. Maximum sustained winds are near 40 mph (65 km/h) with higher gusts. Little change in strength is likely during the next 48 hours, and Dolly is forecast to degenerate into a tropical wave before it reaches the Leeward Islands. Tropical-storm-force winds extend outward up to 115 miles (185 km) from the center. The estimated minimum central pressure is 1007 mb (29.74 inches).

cone graphic

 

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: 

Tropical Cyclone 11E (Karina)…is located about 825 miles south of the southern tip of Baja California

TROPICAL STORM KARINA FORMS WELL OFFSHORE THE COAST OF SOUTHWEST MEXICO

According to the NHC advisory number 1…

Karina is moving toward the west-northwest near 13 mph and this general motion is expected to continue over the next several days. Maximum sustained winds are near 45 mph with higher gusts. Strengthening is anticipated, and Karina is forecast to become a hurricane over the weekend. Tropical-storm-force winds extend outward up to 205 miles from the center. The estimated minimum central pressure is 1001 mb (29.56 inches).

 

Tropical Cyclone 12E (Lowell)…is located about 1545 miles east-southeast of Hilo, HI

LOWELL DRIFTING EAST-NORTHEASTWARD WITH LITTLE CHANGE IN STRENGTH

According to the NHC advisory number 2…

Lowell is moving toward the east-northeast near 5 mph (7 km/h). A gradual turn toward the north is expected by Friday, with a westward motion expected by Saturday. Maximum sustained winds are near 40 mph (65 km/h) with higher gusts. Strengthening is likely during the next several days, and Lowell is forecast to become a hurricane on Sunday. Tropical-storm-force winds extend outward up to 80 miles (130 km) from the center. The estimated minimum central pressure is 1004 mb (29.65 inches).

 

Central North Pacific:

Tropical Cyclone 01C (Lala)…is located about 650 miles north of Kure Atoll

LALA SLOWLY WEAKENING AND SOON TO BECOME POST-TROPICAL

According to the NHC advisory number 63…

Lala is moving toward the north-northwest near 5 mph (7 km/h). A gradual turn toward the west-northwest is expected tonight. On the forecast track, Lala is expected to cross the International Date line on Friday. Maximum sustained winds have decreased to near 40 mph (65 km/h) with higher gusts. Continued slow weakening is forecast, and Lala is likely to become a post-tropical low tonight. Tropical-storm-force winds extend outward up to 115 miles (185 km) from the center. The estimated minimum central pressure is 1002 mb (29.59 inches).

 

>>> Central Pacific:

An area of low pressure could form well south of the Hawaiian Islands over the weekend or early next week. Some gradual development is possible thereafter while the system moves slowly west-northwestward, well south-southwest of the Hawaiian Islands.

* Formation chance through 48 hours…low…near 0 percent
* Formation chance through 7 days…low…30 percent

 

Northwest Pacific Ocean:

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Tropical Cyclone 17W (Saudel)…is located approximately 375 NM west-northwest of Kadena AB – Final Warning

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Tropical Cyclone 20W…is located approximately 117 NM southwest of Wake Island

https://www.metoc.navy.mil/jtwc/products/wp2026.gif

 

Tropical Cyclone 21W (Etau)…is located approximately 291 NM north 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: Too Little Sleep—and Too Much—Associated with Faster Aging

An analysis of biological clocks throughout the human body suggests that too few hours of sleep—and too many—may speed aging in the brain, heart, lung, and immune system and is associated with a wide range of diseases.

“Previous studies have found that sleep is largely linked to aging and the pathological burden of the brain. Our study goes further and shows that too little and too much sleep are associated with faster aging in nearly every organ, supporting the idea that sleep is important in maintaining organ health within a coordinated brain-body network, including metabolic balance, and a healthy immune system,” says study leader Junhao Wen, assistant professor of radiology at Columbia University Vagelos College of Physicians and Surgeons.

The research was published in Nature.