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

 

The latest update to this website was at 518pm Saturday evening HST


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

2.46  Kilohana Kauai
0.96  Waiawa, Oahu
1.22  Puu Alii, Molokai
0.00  Lanai
4.05  West Wailuaiki, Maui
9.94  Laupahoehoe, Big Island


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

30  Lihue, Kauai – NE
53  Kuaokala, Oahu – NE
37  Makpulapai, Molokai – E
62  Na Kula, Maui – E
56  Puuloa, Big Island – NW


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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 Category 2 Hurricane Nolo just south of Hawaii 


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Variable clouds are present over the island chain…Hurricane Noro just south 

 

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Localized Showers…some heavy 

 

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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 home here in upper Kula, Maui, Hawaii

450m, it’s partly to mostly cloudy here at my place, with the low temperature 64.5 degrees, relative humidity is 84%…with off and on windy conditions. BTW, even though the low was 64.5 degrees…at the time of this writing it’s an unusually warm 74.2 degrees

615am, now that it’s light I can see lots of rainy looking clouds over along the windward side of east Maui.

352pm, I played pickleball this morning in Haiku, where it was heavily raining off and on, with strong winds blowing.When I got home here in upper Kula, it was warm with muted sunshine and completely dry in contrast.


Hawaii’s Weather Highlights…as of Saturday evening:  Hurricane Nolo has begun its anticipated westward movement south of the Big Island. Localized strong and gusty winds will occur across all islands through Sunday, with the highest winds expected over and downwind of terrain on the Big Island and Maui. The remains a chance for flooding over portions of the Big Island and Maui today.

Weather Narrative…as of Saturday evening: Hurricane Nolo, now located about 160 miles south of Big Island, has begun its long anticipated turn toward the west. A mid to upper level ridge building north of the state has initiated the westward turn of Nolo and is creating some stability from Maui to Kauai. A tight pressure gradient north of Nolo and the modest developing stability has created conditions conducive for downsloping winds within the strong trade wind flow. As a result, Wind Advisory conditions prevail on Oahu and Kauai, and portions of Maui County downwind of terrain are experiencing gusts of 60 mph or more, mainly in the area around Ukumehame and Olowalu.

A Tropical Storm Watch remains in effect for Maui County. A Tropical Storm Warning remains in effect for the Big Island, where wind gusts over 60 mph are being observed in the Kohala Districts. A Flood Watch also remains in effect for Big Island and Maui. The flood threat is rapidly diminishing for Maui, and lower rain rates on windward and southeast Big Island have mitigated flood impacts so far. The flood threat for Big Island will diminish tonight.

As Nolo moves westward tonight and Sunday, the Tropical Storm Warning for Big Island and the Tropical Storm Watch for Maui County should be discontinued. However, strong and gusty trade winds will persist due to the tight pressure gradient north of Nolo. Expect the Wind Advisory to be expanded to cover much of Maui County and Big Island, while some leeward areas over and downwind of terrain on Maui and Big Island be placed under a High Wind Warning. The threat of heavy rainfall will diminish on Big Island overnight, with modest windward rainfall due across the rest of the state.

The mid level trough mentioned above will help to draw Nolo north and then northwestward early next week. At this time the forecast keeps Nolo west of Kauai. Toward the end of next week, light south- to- southeast wind flow is expected to prevail, which will bring in very warm and muggy…and potentially hazy conditions.

Fire Weather:  As Hurricane Nolo moves westward through the weekend, easterly winds will remain very strong and gusty over and downwind of terrain. Rainfall over the last month has led to some improvement in fuels, but the strong and gusty trade winds will produce moderate fire weather conditions over drier leeward areas today. With drier and continued windy weather due on Sunday, near critical fire weather conditions are expected, with the only limiting factor remaining the readiness of fuels.

 

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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 evening: Hurricane Warnings around the Big Island and Tropical Storm Warnings around Maui County remain in effect, as Hurricane Nolo begins to accelerate slowly westward today. A Small Craft Advisory remains in effect for the remaining waters today. The Gale Watch for waters around Oahu and Kauai has been trimmed back to tonight and Sunday, as confidence has decreased somewhat in widespread gale force winds developing across the coastal waters.

Nolo is expected to remain south of the Hawaiian Islands, centered well outside of the coastal waters this weekend, but strong winds and high seas can nonetheless be expected well away from the storm itself. The hurricane will gain distance from the islands as it begins to turn northwest by early next week, leading to more limited impacts by Monday.

A combination of southeast swell originating from Hurricane Nolo, and strengthening easterly trade winds, is producing advisory level surf for east facing shores of Kauai and Oahu, and east and southeast facing shores of Maui, Molokai, and the Big Island today. Advisory level surf is expected to continue through Sunday, for which the High Surf Advisory remains in effect. By that point, Nolo will gain some distance from the islands to the southwest, leading to less direct swell impacts and weakening trade winds, which will decrease east and southeast shore surf below advisory criteria. A series of small, medium-period east swells are expected from Hurricanes Odalys and Polo in the East Pacific next week.

South facing shores can expect a moderate rise in surf as Hurricane Nolo tracks south of the islands through at least this weekend. A small, long period northwest swell also fills in this weekend, bringing a small rise to north facing shores into early next week.

 

>>> Highest Temperature Saturday, September 26, 2026 – 106 degrees near North Shore, CA


>>> Lowest Temperature Friday, September 25, 2026 – 22 degrees near Old Station, CA

 

Signs of Rain in Kona — Hui Aloha Kiholo


World-wide Tropical Cyclone Activity

 



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


Interesting Weather Web blog: Mauka Showers….Hurricane Nolo – Here We Go Again!



Atlantic Ocean: 

Tropical cyclone (Fay) is located about 1125 miles west-southwest of the Azores

 

FAY VERY SLOWLY MOVING SOUTHWARD

According to the NHC advisory number 28

The depression is moving toward the south near 2 mph. A turn to the southwest is expected starting early next week, along with an increase in forward speed. Maximum sustained winds are near 35 mph with higher gusts. Little change in strength is forecast over the next several days.

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Post-Tropical cyclone (Gonzalo) is located about 180 miles north of Sal Cabo Verde – Last Advisory

 

GONZALO NO LONGER A TROPICAL CYCLONE

According to the NHC advisory number8

The post-tropical cyclone is moving toward the north-northwest near 7 mph and this general motion is forecast to continue through the weekend, with a slow down and turn to the west-northwest expected by early next week. Maximum sustained winds are near 40 mph with higher gusts. Additional weakening is forecast, and the post-tropical cyclone is expected to dissipate over eastern Subtropical Atlantic by the early to mid portion of next week. Tropical-storm-force winds extend outward up to 185 miles from the center. The estimated minimum central pressure is 1005 mb (29.68 inches).

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Caribbean Sea: There are no active tropical cyclones


Gulf of America: There are no active tropical cyclones

 

Northeast Pacific:

Tropical cyclone 16E (Odalys) is located about 885 miles west of the southern tip of Baja California

 

ODALYS CONTINUES TO RAPIDLY WEAKEN

According to the NHC advisory number 29

Odalys is moving toward the north near 7 mph and a general northward to north-northeastward motion is expected to continue through this evening, followed by a sharp turn to the south-southeast by early next week. Maximum sustained winds have decreased to near 80 mph with higher gusts. Rapid weakening is forecast over the next several days, and Odalys is anticipated to become a post-tropical cyclone by Monday. Hurricane-force winds extend outward up to 40 miles from the center and tropical-storm-force winds extend outward up to 115 miles. The estimated minimum central pressure is 979 mb (28.91 inches).

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Tropical cyclone 17E (Polo) is located about 325 miles southwest of Cabo San Lucas, Mexico

According to the NHC advisory number 28

Polo is moving toward the northwest near 10 mph and this motion is expected to continue tonight. A northward turn is expected on Sunday, followed by a turn toward the northeast on Monday. On the forecast track, Polo is expected to approach the west coast of Baja California Sur on Monday, move across the peninsula Monday night and then approach northwestern mainland Mexico by early Tuesday. Maximum sustained winds as measured by a NOAA Hurricane Hunter aircraft are 120 mph with higher gusts. Polo is a category 3 hurricane on the Saffir-Simpson Hurricane Wind Scale. Additional weakening is expected during the next few days, but Polo is forecast to remain a hurricane as it approaches Baja California Sur on Monday. Hurricane-force winds extend outward up to 40 miles from the center and tropical-storm-force winds extend outward up to 160 miles. The estimated minimum central pressure based on data from the NOAA Hurricane Hunter aircraft is 949 mb (28.03 inches).

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>>> South of the Gulf of Tehuantepec:

Invest 90E

Showers and thunderstorms continue to develop in association with an area of low pressure southwest of the Gulf of Tehuantepec. Additional development of the system is anticipated due to conducive environmental conditions and a tropical depression is expected to form in the next day or so. This system is forecast to continue moving slowly to the west-northwest or northwest, staying parallel to the coast of southern and southwestern Mexico.

* Formation chance through 48 hours…high…90 percent
* Formation chance through 7 days…high…90 percent

 

Central North Pacific:

Tropical Cyclone 15E (Nolo) is located about 165 miles south-southwest of South Point, Hawaii

NOLO NOW MOVING FASTER TOWARD THE WEST …GUSTY WINDS, HEAVY RAIN, AND LARGE WAVES CONTINUE FOR PORTIONS OF THE HAWAIIAN ISLANDS

According to the NHC advisory number 26

Nolo is moving toward the west near 8 mph and this motion is expected to continue through Sunday. A turn toward the northwest is expected Sunday night, with this general motion continuing through Tuesday. On the forecast track, the center of Nolo will remain well south and southwest of the main Hawaiian Islands. Maximum sustained winds are near 90 mph  with higher gusts. Nolo is predicted to strengthen into a major hurricane on Sunday or Sunday night and reach its peak intensity by Monday. Thereafter, steady weakening is expected. Hurricane-force winds extend outward up to 35 miles from the center and tropical-storm-force winds extend outward up to 150 miles. The estimated minimum central pressure is 969 mb (28.62 inches).

HAZARDS AFFECTING LAND 

WIND: Strong and gusty winds are possible for all of the Hawaiian Islands through the weekend, although the core winds of Nolo will stay to the south.

RAINFALL: For the eastern and southern portions of the Big Island, Nolo will produce additional rainfall totals 4 to 8 inches with isolated totals of 10 inches, bringing storm totals to 10 to 20 inches with maximum amounts of 25 inches. This rainfall could produce significant, life-threatening flooding and mudslides, especially in areas of steep terrain.

For the western portions of the Big Island, rainfall totals of 1 to 3 inches are expected. For eastern Maui, additional rainfall totals of 1 to 2 inches are expected, bringing storm totals to 4 to 8 inches with maximum amounts of 10 inches. Life-threatening flooding and mudslides are possible, especially in areas of high terrain.

Across the remainder of the Hawaiian Islands, maximum storm total rainfall amounts of 1 to 3 inches are expected.

STORM SURGE: The threat of significant storm surge has diminished, yet water levels along the coast will remain elevated through upcoming tide cycles due to persistent, dangerous wave action.

SURF: Swells generated by Nolo are affecting exposed east- and south-facing shores of the Big Island and are expected to spread westward and build through the weekend. These swells are likely to cause life-threatening surf and rip current conditions

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>>> Well East-Southeast of the Hawaiian Islands:

A broad area of low pressure located about 1000 miles to the east-southeast of the Hawaiian Islands is becoming organized. Environmental conditions are expected to be conducive for development of this system, and a tropical depression is likely to form during the early to middle part of next week. The system should move generally northeastward, and remain well east-southeast of the Hawaiian Islands.

* Formation chance through 48 hours…low…30 percent
* Formation chance through 7 days…high…70 percent

 

Northwest Pacific Ocean:

Tropical Cyclone 25W (Surigae)…is located approximately 115 NM south of Kadena AB

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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

 

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



Interesting:  Sharks Can Hear Sounds Nearly 250 Feet Away and Find the Source

Sound travels through the ocean carrying clues about potential prey, predators and other animals, giving sharks an important way to detect what they cannot yet see. But exactly how far a free-swimming shark can hear a sound – and whether it can determine where that sound is coming from – has remained largely unknown.

Now, a new Florida Atlantic University study of blacktip sharks (Carcharhinus limbatus) is helping close that gap. Using an underwater speaker, an aerial drone and free-swimming sharks, researchers found that sharks can detect sounds from considerable distances and respond by dramatically changing direction away from the source – even when the sound source is nearly 250 feet away.

Results of the study, published in the journal Integrative Organismal Biology, provide the first quantified evidence that free-swimming sharks can detect and orient away from sound in the acoustic far field, offering new insight into one of the most fundamental yet least understood senses in these ancient marine predators.

Read more at: Florida Atlantic University