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

 

The latest update to this website was at 432pm Saturday afternoon HST


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

1.07  Kilohana, Kauai
0.02  Makaha Stream, Oahu
0.02  Puu Alii, Molokai
0.00  Lanai
2.21  Kahakuloa, Maui
0.38  Honokaa, Big Island


The following numbers represent the strongest wind gusts (mph) Saturday afternoon:

35  Barking Sands, Kauai – NNE
29  Kuaokala, Oahu – NE
27  Molokai AP, Molokai – NE
24  Lanai 1, Lanai – ENE
29  Kaanapali, Maui – NNE
37  Mauna Loa Obs, Big Island  


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. 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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 Cold front far northwest…thunderstorms in the deeper tropics

 

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High clouds over the state from the west…low clouds arriving on the trades

 

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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 Saturday comments:  I’m at my friend Bob’s here in Bend, Oregon on a working vacation.

502am, it’s mostly clear with some high cirrus here in Bend, Oregon, the low temperature was 28.5 degrees…with calm winds

830am, I’m infatuated with Bend again, like always, especially this time of year when the leaves are all turning orange, red, yellow. The temperatures here are just right, with high’s in the 50’s, with the lows in the upper 20’s the last couple of days.

1037am, still sunny as Bob and I head out to walk around some Aspen trees, and enjoy the quivering yellow leaves.

303pm, took a great long walk along the Deschutes River, now back and enjoying a cocktail before the last walk of the day and dinner. We’re listening to the Moody Blues, which is one of our favorite groups from way back when.

 

>>> It would be wise to pay attention to this heavy weather situation later in the new week!

A Hydrologic Outlook has now been issued for the forecast heavy rain with possible thunderstorms beginning late Monday night and continuing Tuesday and Wednesday. There are no major changes in the forecast since yesterday, and models still show differences in timing, locations and rain amounts, but as the event gets closer there is an increasing likelihood of flooding impacts across Hawaii.

 

Here’s an interesting weather web blog, Mauka Showers…Hawaii’s Upcoming Drought of 2027?

 

Hawaii’s Weather Highlights…as of Saturday afternoon: Northeasterly trade winds should gradually weaken Sunday into Monday. Brief passing showers will drift into the islands on the trade winds, favoring windward and mountain areas during the overnight to early morning hours. A significant change to our weather pattern is expected early next week. Deep tropical moisture will bring the potential for heavy rain and thunderstorms across the state starting Monday night and persisting through at least Thursday.

Weather Narrative…as of Saturday afternoon: Radar and satellite showed typical trade wind showers and clouds moving into windward and mauka areas. Winds were averaging 10-15 mph with the typical windy areas gusting 20-25 mph.

The upper level maps show a large closed low about 1000 miles to our north-northeast, with one ridge to our northwest and another to our east-southeast. At the surface, a low is centered beneath the upper level low, with a ridge to either side. The eastern ridge is helping to keep the trade winds blowing, and this will continue into Monday. Through Monday night, the low to our north will drift slowly southeast, both aloft and at the surface. At the same time, two new surface lows will form to our west- southwest. A trough will connect all three lows…the one that drifted into a position to our northeast along with the two to our west-southwest.

Southerly winds will bring deep tropical moisture northward as this trough moves north toward and then through the state Monday night through around Thursday. Precipitable water values will get up over 2 inches, and max out around 2.5 inches. This is exceptionally high (99th percentile). Heavy rain and thunderstorms will be possible through this period over most of the state, but models are slow to converge on area(s) of maximum concern. Therefore, a Hydrologic Statement describing the concern for flooding.

A Flood Watch may eventually be issued if models continue to show the potential for heavy rain. Upper level winds may be just strong enough to enable the development of organized convection in the form of squall lines or MCSs. If these form, the chance of extreme rainfall rates goes up. Finally, ensembles indicate that Tuesday afternoon through Wednesday is the most likely time of heavy rain and thunderstorms. Winds will remain generally easterly through Tuesday, but after then there is great uncertainty. Some models show centers of low pressure forming along the trough as it moves over the state. These lows would have a cyclonic circulation, of course, and give different islands very different winds. The location and timing of these lows, as depicted by various models, are quite different. This makes for a very low-confidence wind forecast. Regardless of exact timing/location of any additional lows that may form, at this time, it does not appear that strong winds will impact the state with this overall system. However, showers and any thunderstorms will have the potential for brief gusty winds.

Fire Weather: Gentle to moderate trade winds with mostly dry conditions over leeward areas will continue to produce low to moderate fire weather conditions through the weekend. A drier airmass moving in later tonight could produce lower humidities for Sunday, with minimum RH`s getting down to the low 40’s for select leeward areas. Ample tropical moisture will move in from the southwest sometime beginning Monday night or Tuesday, bringing a threat for heavy rain through at least Thursday. As a result, fire weather concerns will be low through most of next week. Inversion heights will range from 5,000 to 8,000 feet this weekend, with the higher inversion heights over the eastern end of the state, due to a weak trough just east of the Big Island.

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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 Saturday afternoon: A surface low far north-northeast of the Hawaiian Islands will dig southward through the weekend, and will stall roughly 800 to 900 miles northeast of Oahu on Monday, keeping the subtropical ridge just north of the area rather weak. Trade winds will be at gentle to moderate strength during much of this time, though a brief period of fresh northeast winds may accompany a shallow band of showers moving over Kauai and Oahu this afternoon into tonight. An area of low pressure is expected to move over the islands from the southwest Tuesday and Wednesday, bringing variable winds and the potential for heavy showers and thunderstorms.

Small surf along north-facing shores will begin to build rapidly this afternoon and evening as a moderate, medium-period north- northwest swell arrives. Surf will reach near seasonal average during the peak of the swell tonight into Sunday. As this swell declines on Monday, a long-period northwest swell will arrive. This swell will generate moderate surf along north- and west- facing shores through Wednesday.

A small north-northeast swell will be possible during the second half of next week. A series of small overlapping south-southwest swells will push surf back to around seasonal average today into early next week. A larger south-southwest swell may push surf above seasonal average late next week.

Surf along most east-facing shores will be small through early next week, but areas exposed to wrapping northerly swells will experience periods of moderate surf late Saturday through Monday. East-facing shores should also see a bump in surf if the north- northeast swell materialized during the latter half of next week.

 

>>> Highest Temperature Saturday, October 24, 2026 – 91 degrees near La Puerta, TX


>>> Lowest Temperature Saturday, October 24, 2026 – 5 degrees near White Sulphur Springs, MT

 

Top 10 Places on Maui for Landscape and Nature Photography


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


Caribbean Sea: There are no active tropical cyclones


Gulf of America: There are no active tropical cyclones

 

Northeast Pacific:

Tropical Cyclone 22E (Vance)…is located 400 miles south of Manzanillo, Mexico

VANCE WEAKENS SOME MORE AS IT CONTINUES NORTH-NORTHWESTWARD

According to the NHC advisory number 14

Vance is moving toward the north-northwest near 6 mph, and a slow motion toward the north-northwest is expected to continue through Monday. Maximum sustained winds have decreased to near 90 mph with higher gusts. Additional weakening is expected through Sunday night. Some re-intensification is possible on Monday. Hurricane-force winds extend outward up to 30 miles from the center and tropical-storm-force winds extend outward up to 150 miles. The estimated minimum central pressure is 977 mb (28.85 inches).

cone graphic

 

Central North Pacific: There are no active tropical cyclones

>>> Western Central Pacific:

Showers and thunderstorms are a little better organized in association with a broad area of low pressure located just west of the International Date Line, several hundred miles west of Johnston Atoll. Some development of this system is possible over the next few days while it moves east-northeastward at 10 to 15 mph. By the middle of next week, however, strong upper-level winds should limit any additional development.

* Formation chance through 48 hours…low…20 percent
* Formation chance through 7 days…low…30 percent

 

Northwest Pacific Ocean:

Tropical Cyclone 29W (Champi)…is located approximately 356 NM southwest of Sasebo, Japan

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Tropical Cyclone 30W (In-fa)…is located approximately 224 NM northwest of Kwajalein

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Southwest Pacific Ocean: There are no active tropical cyclones

 

North and South Indian Oceans / Arabian Sea:  

 

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



Interesting:  Just 3% of the World’s Glaciers Account for Over Half of Glacier Ice Loss

Glaciers ending in lakes, oceans or ice shelves make up 3.2% of the world’s glaciers, but lost 134bn tonnes of ice each year between 2000 and 2019, accounting for more than half of all glacier ice loss, a new study shows.

The team of environmental scientists found that these glaciers tend to be much larger than those ending on land, together covering more than half of the world’s glacier area. But for glaciers ending in lakes, size isn’t the whole story.

Publishing their findings in Nature Communications, the researchers found that glaciers ending in lakes lost ice around 57% faster, relative to their size, than those ending on land over the same period.

The study was led by scientists from the University of Birmingham and the University of Leeds. The team examined 216,502 glaciers worldwide, excluding the Greenland and Antarctic ice sheets, to identify which end in lakes, adding to existing records of those ending on land, in oceans or in ice shelves. They then compared ice flow and ice loss across all four glacier types.

Read More: University of Birmingham