Glenn James

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

 

The latest update to this website was at 633am Monday morning HST


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

0.29  Kilohana, Kauai
0.04  Kaala, Oahu
0.10  Puu Alii, Molokai
0.05  Lanai City, Lanai
0.48  Kahakuloa, Maui
0.75  Laupahoehoe, Big Island


The following numbers represent the strongest wind gusts (mph) Monday morning:

30  Barking Sands, Kauai – NNE 
27  Kuaokala, Oahu – NE
20  Molokai AP, Molokai – NE
25  Lanai 1, Lanai – NE
23  Kealia Pond, Maui – NE
23  Kealakomo, 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. 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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 Upper level low far northeast…Tropical Depression Olana far southwest of Hawaii…thunderstorms in the deeper tropics

 

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High clouds over parts of the state…low clouds locally

 

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

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

Localized Showers…very few 

 

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




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Hawaii Weather Narrative
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Glenn’s Monday comments:  I’m at my friend Bob’s here in Bend, Oregon on a working vacation.

417am, it’s partly cloudy here in Bend, Oregon, the low temperature was 37 degrees…with calm winds

 

Tropical Storm Olana…far to our southwest won’t be an issue in impacting our islands

 

>>> It would be wise to pay attention to this heavy weather situation coming up in the near future

A significant pattern change is expected late Monday night through at least Thursday as deep tropical moisture is brought north. A combination of surface lows and troughs will bring exceptionally moist air over the state beginning late Monday night. Heavy rain and isolated thunderstorms are possible throughout this period. Models have not converged on details yet, so exact locations, timing, and rainfall amounts are not certain. Please be prepared for periods of heavy rain this coming week.

 

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

 

Hawaii’s Weather Highlights…as of Monday morning: Gentle to moderate northeast trade winds expected for the next few days. Deep tropical moisture will bring the potential for heavy rain and thunderstorms across the state starting late tonight through at least Thursday. The forecast for the weekend is a return of trades, but continued above-normal rainfall.

Weather Narrative…as of Monday morning: Radar and satellite imagery shows a few scattered clouds and showers across the state. Expect northeasterly trades to gradually decrease today. As we head into this evening and for the next few days the weather pattern gets rather complicated.

A large low sits about 800 miles to our northeast. A front extends to the east and then south of the low, and a trough extends southwest from the decaying end of the front toward Hawaii. A separate upper level trough is to our northwest and Tropical Storm Olana sits to our southwest. The northwestern trough will sag southeast helping pull Olana toward the islands. Tropical Storm Olana is expected to weaken into a tropical depression and stay to the west of the islands Tuesday.

The trough extending from the low to our northeast will eventually extend all the way to the remnants of Olana, and then drift north over the state. This trough will bring abundant tropical moisture and remain nearly stationary over the area through the end of the week. A series of small lows will form with one or more potentially moving over the state. Models still show disagreement on timing and locations of these features. This makes the uncertainty higher than normal.

With the potential for heavy rain and a few thunderstorms continuing over the state for a few days, a Flood Watch will go into effect at 6am Tuesday through Wednesday evening, with the potential of it being extended. Total rainfall amounts Tuesday through Thursday range from 2 to 8 inches, with the highest amounts in the higher elevations. There is also a chance of a few thunderstorms at times. With any thunderstorms brief gusty winds and very heavy rain can be expected. We look to return to a trade wind pattern this weekend into early next week.

Fire Weather:  Gentle to moderate trades expected today. Deep tropical moisture will move in Tuesday, bringing a threat for heavy rain and a few thunderstorms through at least Thursday. As a result, fire weather concerns will be low through most of the next week. Inversion heights will range from 4,500-6,000 feet.

 

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 Monday morning: A surface low far northeast of the Hawaiian Islands will stall roughly 800 miles northeast of the state today. A low pressure trough is forecast to approach the area by late tonight, bringing heavy showers with embedded thunderstorms to the waters over the next several days. Relatively weak wind flow will persist through the forecast period.

A short period north-northwest swell will gradually lower today. Meanwhile, an overlapping, moderate, mid-period northwest swell is will build today and bring surf to near advisory levels along north and west facing shores through Wednesday. A small north-northeast swell should arrive during the second half of the week.

Overlapping south-southwest swells will keep surf along south-facing shores to around seasonal averages through Tuesday. A larger south swell may push surf up to near advisory levels Thursday and Friday.

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

 

>>> Highest Temperature Sunday, October 25, 2026 – 89 degrees near Ingleside, TX


>>>
Lowest Temperature Saturday, October 24, 2026 – 12 degrees near White Sulphur Springs, MT

 

Recent images captured on the island of Kauai. I'm loving some of these, and working on more to come soon. Some new additions coming to the Masterworks Collection! . . . #hawaii #


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 265 miles south-southwest of Manzanillo, Mexico

VANCE MOVING SLOWLY WEST-NORTHWESTWARD AND LIKELY TO WEAKEN

According to the NHC advisory number 21

Vance is moving toward the west-northwest near 7 mph. This motion is expected to continue for the next day or so, followed by a turn to the northwest on Tuesday and north on Wednesday. Maximum sustained winds remain near 65 mph with higher gusts. Gradual weakening is forecast during the next several days. Tropical-storm-force winds extend outward up to 125 miles from the center. The estimated minimum central pressure is 997 mb (29.44 inches).

cone graphic

 

Central North Pacific:

Tropical Cyclone 3C (Olana)

OLANA WEAKENS TO A TROPICAL DEPRESSION

According to the NHC advisory number 5

The depression is moving toward the southeast near 5 mph. A general southeastward to eastward motion is expected during the next day or two. Maximum sustained winds have decreased to near 35 mph with higher gusts. Additional weakening is expected, and Olana is forecast to become a remnant low in a day or so. The estimated minimum central pressure is 1005 mb (29.68 inches).

cone graphic

 

Northwest Pacific Ocean:

Tropical Cyclone 29W (Champi)…is located approximately 163 NM southwest of Sasebo, Japan – Final Warning

https://www.metoc.navy.mil/jtwc/products/wp2926.gif

 

Tropical Cyclone 30W (In-fa)…is located approximately 384 NM southwest of Wake Island

https://www.metoc.navy.mil/jtwc/products/wp3026.gif

 

Southwest Pacific Ocean: There are no active tropical cyclones

 

North and South Indian Oceans / Arabian Sea:  

North Indian Ocean

Tropical Cyclone 02B (Arnab)…is located approximately 408 NM south of Kolkata, India

https://www.metoc.navy.mil/jtwc/products/io0226.gif

 

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



Interesting: 
Turning Waste Into Fuel Could Help Cut Cement’s Carbon Footprint

Waste that would otherwise end up in landfill could help low-carbon cement production by reducing the industry’s reliance on fossil fuels, according to Australian researchers.

Adelaide University PhD candidate Geethmi Thisakya, along with her supervisory team, Dr Navodana Rodrigo, Dr Chamitha Wijewickrama and Professor George Zillante, has systematically reviewed global research on using refuse-derived fuel (RDF) in cement manufacturing, examining its potential to support cleaner industrial production and more sustainable waste management.

Cement is essential for buildings, roads and infrastructure but is also responsible for an estimated 8% of global carbon dioxide emissions.

The industry relies heavily on coal and other fossil fuels to generate the extreme heat needed to produce cement. At the same time, large quantities of combustible waste, including materials that cannot be recycled, are sent to landfill.

Read More: Adelaide University