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

 

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


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

0.19  N Wailua Ditch, Kauai 
0.03  Poamoho RG 1, Oahu
0.01  Puu Alii, Molokai
0.01  Lanai AP, Lanai
0.12  Hanaula, Maui
2.02  Kona Hema, Big Island


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

20  Port Allen, Kauai – ENE
28  Kuaokala, Oahu – NE
27  Anapuka, Molokai – NE 
m   Lanai – missing
28  Na Kula, Maui – ESE
31  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.


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Big Blue…click twice for largest version

 

https://cdn.star.nesdis.noaa.gov/GOES18/ABI/SECTOR/tpw/13/GOES18-TPW-13-900x540.gif

  Tropical Storm 14E (Norbert) is traveling west…eventually into our central Pacific

https://cdn.star.nesdis.noaa.gov/GOES18/ABI/SECTOR/hi/14/20262541930-20262550320-GOES18-ABI-HI-14-600x600.gif

Variable clouds across the state…and over the offshore waters 

 

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

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

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

444am, it’s clear here at my place. My low temperature here in upper Kula was 52 degrees, relative humidity 82%…and calm winds

1105am, the clear skies earlier this morning have given way to sunny to partly sunny conditions in many areas here on Maui. I have enough confidence in sunshine, or at least lack of showers for the time being, that I washed my clothes and have hung them on the line to dry.

255pm, it remains partly to mostly sunny, even on the windward sides here on Maui, with some cloudy areas over and around the mountains.

 

Interesting weather blog: Mauka Showers…Hurricane Lala? Rainfall Analysis – It’s About the Intensity

Wondering whether this autumn and winter will be drier or wetter than normal here in Hawaii? Well, it looks like it could be markedly drier than normal. This doesn’t mean that there won’t be any cold fronts or upper level lows, that will bring some good moisture, just fewer than we’d likely prefer.

 

Tropical Storm 14E (Norbert) remains active far east-southeast 

cone graphic

time of arrival graphic

 

Hawaii’s Weather Highlights…as of Friday evening:  A drier and less humid trade wind flow is filling in now. Limited showers will focus along windward and mauka areas. A weak disturbance will lift out of the deep tropics early next week, bringing a slight increase in trades, increased humidity, and a better chance for showers

Weather Narrative…as of Friday evening: A number of noteworthy features on satellite imagery. To the northwest, a mid-level trough has triggered a convective flare-up, as it feasts on the remnants of Lowell. The lingering band of tropical moisture that has supplied the islands with humid conditions and spotty afternoon showers eased west of the islands overnight, and dew points will fall more uniformly into the mid to upper 60’s during the next 24 hours, as moderate trades carry a drier airmass into the area. The delayed arrival of the airmass over leeward Big Island means today’s afternoon convection may yet provide a localized threat for nuisance flooding, over downslope areas of the North and South Kona Districts similar to yesterday.

Located about 1000 miles south-southeast of Hilo, a disorganized area of showers and thunderstorms persists. NHC offers a 20% chance of tropical development with this activity, as it lifts toward the islands early next week. Regardless of the low probability of development, enhanced moisture, and a modest boost in trade winds, will accompany this feature as it lifts out of the deep tropics toward the islands early next week. The GFS model suggest that very humid conditions, characterized by mid-70’s dew points during the middle of next week look appropriate, and will provide rich low-level moisture in support of enhanced trade wind shower coverage.

Eyes remain fixed on Tropical Storm Norbert, 2000 miles east-southeast of Hilo, as it slowly advances westward at 14 mph. Any potential arrival in the vicinity of the Hawaiian Islands is at least 10 days away. Forecast uncertainty is characteristically high at that lead time, and it will be several days before confidence in impacts, or lack thereof, improves.

Fire Weather:  Fire weather risk will remain low the next several days due light to moderate winds and the effects of recent rainfall, even as afternoon relative humidity falls below 50 percent over many leeward areas. Inversion heights are expected to remain elevated or weak through 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 Friday evening: Moderate to locally fresh northeast to east trade winds will continue. A tropical disturbance moving in from the trade winds may bring an increase of showers to the coastal waters by next week Tuesday into Wednesday. Surf along south facing shores will gradually decline through the weekend, as the small, medium to long period energy slowly fades. Currently a low in the south Pacific near Australia and New Zealand will bring the potential for a moderate long period swell for Hawaii late next week. East facing shores will also remain at small to moderate levels, due to the fresh to locally strong trade winds. Flat to tiny surf along north facing shores is expected.

 

>>> Highest Temperature Friday, September 11, 2026 – 115 degrees near Tecopa, CA


>>> Lowest Temperature Friday, September 11, 2026 – 26 degrees at Fraser, CO

 

Hawaiian Vibes


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 14E (Norbert)…is located about 1870 miles east of Hilo, Hawaii

NORBERT HOLDING STEADY ON A WEST-NORTHWEST TRACK

According to the NHC advisory number 10…

Norbert is moving toward the west-northwest near 12 mph, and this general motion is expected to continue over the next couple of days. Maximum sustained winds are near 65 mph with higher gusts. Gradual strengthening is forecast over the weekend, and Norbert is forecast to become a hurricane on Saturday. Tropical-storm-force winds extend outward up to 105 miles from the center. The estimated minimum central pressure is 996 mb (29.42 inches).

cone graphic

time of arrival graphic

 

>>> Central and Western East Pacific

Invest 97E

Showers and thunderstorms continue to become better organized in association with a broad area of low pressure located several hundred miles southwest of the southwestern coast of Mexico. Gradual development of this system is likely, and a tropical depression is expected to form during the next day or two while it moves generally west-northwestward to westward over the central and western portions of the eastern Pacific basin.

* Formation chance through 48 hours…high…70 percent
* Formation chance through 7 days…high…90 percent

 

Central North Pacific

>>> Well southeast of the Hawaiian Islands:

A broad trough of low pressure located several hundred miles southeast of the Hawaiian Islands is producing disorganized showers and thunderstorms. Gradual development of this system is possible during the next few days while it moves generally northward and then meanders.

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

 

Northwest Pacific Ocean:

>>> There’s an area of disturbed weather being referred to as Invest 98W, which is located approximately 72 NM east-southeast of Da Nang, Vietnam

 

Southwest Pacific Ocean: There are no active tropical cyclones

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

https://www.metoc.navy.mil/jtwc/products/abpwsair.jpg

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



Interesting:  Sea-Level Rise Could Squeeze Shorebirds Out of Critical Coastal Habitat, Researchers Find

As sea levels rise, coastal wetlands around the world are expected to shrink – and researchers at the University of British Columbia have found this could put the world’s shorebirds and their critical habitat at risk.

The first global systematic review of its kind, published in Biodiversity and Conservation, examined the impacts of rising sea levels on 29 species of shorebirds, including plovers, sandpipers and oystercatchers. The review found rising seas are expected to have predominantly negative impacts on shorebird habitat and populations, while human infrastructure could make the problem worse by preventing coastal wetlands from moving inland.

“As sea levels rise, coastal wetlands need space to retreat, but many of the places where shorebirds depend on these habitats are already constrained by dykes, roads and other development,” said lead author Jennifer Magel, a PhD student at the Faculty of Forestry & Environmental Stewardship at UBC. “If we continue to develop our coastlines without considering where these wetlands can go, we risk losing important shorebird habitat.”

The researchers reviewed 37 studies that included data on the effects of sea level rise on shorebirds: 78 per cent found negative impacts on habitat, while 89 per cent found negative impacts on shorebird populations or individual birds.

Read More: University of British Columbia

Image: Western Sandpipers in flight over Roberts Bank in the Fraser River Estuary during migration