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

 

The latest update to this website was at 1245pm Saturday afternoon HST


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

0.08  Waialae, Kauai 
0.01  Poamoho RG 1, Oahu
0.01  Puu Alii, Molokai
0.01  Lanai AP, Lanai
0.02  Kahikinui 1, Maui
0.28  Honolii Stream, Big Island


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

10  Lawai, Kauai – E
28  Oahu Forest NWR, Oahu – ENE
17  Makapulapai, Molokai – ESE 
m   Lanai – missing
15  Kealaloloa Rg, Maui – ESE
22  Kawaihae Rd, 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

 

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


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Variable clouds across the state…and over the offshore waters 

 

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

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No Showers…or at least very few 

 

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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

441am, it’s clear here at my place. My low temperature here in upper Kula was 53 degrees, relative humidity 82%…and calm winds

905am, it’s about as cloud free a day here on Maui as it ever gets…I mean sunny and clear!

 

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 Saturday afternoon:  Drier trade winds will prevail into early next week, with light showers on the windward sides of the islands. A weak disturbance will lift out of the deep tropics towards the middle of next week, bringing a slight increase in trades, increased humidity, and a better chance for showers.

Weather Narrative…as of Saturday afternoon: Satellite water vapor imagery shows a large upper level low well northeast of the state, and a generally dry northwest wind flow aloft, as a weak trough moves southeast over our area. Remnant moisture and showers remain west and southwest of the Big Island, and will gradually dissipate through the day.

Drier air in the prevailing trade winds will continue through the weekend. Typical trade weather is expected over the next few days, with occasional light showers falling across the windward sides of the islands each day.

A tropical disturbance currently several hundred miles southeast of Hilo, will move northwestward over the next several days. The NHC forecast has dropped to a 10% chance of development into a tropical cyclone over the next 7-days. The most likely scenario is for this feature to help pull tropical moisture into the area, though how much and exactly when will depend on its track. For now look for precipitable water and dew points to increase, with a small increase in trade winds and higher precipitation chances towards the middle of next week.

Tropical Storm Norbert is currently far east-southeast of Hilo, moving west-northwest at 10 mph. This system is now forecast to remain at Tropical Storm strength through Wednesday, when it will be southeast of Hawaii. There remains higher than normal uncertainty on where this storm will track as it approaches, so confidence in impacts – if any – to the islands remain low at this time.

Fire Weather:  Fire weather risk will remain low the next several days, due light to moderate winds and the effects of recent rainfall. Inversion heights are expected to remain elevated or weak through Monday.

 

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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: Moderate to locally fresh trades will continue. A tropical disturbance moving in on the trade wind flow may bring an increase of showers to the coastal waters by Tuesday into Wednesday.

Surf along south facing shores will gradually decline through the weekend, as the small, medium to long period energy slowly fades. 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

 

Great Beaches for Families on Kailua: A Guide to the Best Spots


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 1675 miles east of Hilo, Hawaii

NORBERT A LITTLE WEAKER …NOW EXPECTED TO DISSIPATE EAST-SOUTHEAST OF HAWAII BY THE MIDDLE OF NEXT WEEK

According to the NHC advisory number 13…

Norbert is moving toward the west-northwest near 12 mph. A west-northwestward to westward motion is expected during the next several days. Satellite-derived wind data indicate that maximum sustained winds have decreased to near 50 mph with higher gusts. Little change in strength is expected over the next 24 hours, but weakening is likely to begin on Sunday. Norbert could degenerate into a remnant low by Wednesday and dissipate by Thursday. Tropical-storm-force winds extend outward up to 105 miles mainly to the north of the center. The estimated minimum central pressure is 1000 mb (29.53 inches).

cone graphic

time of arrival graphic

 

>>> Central and Western East Pacific

Invest 97E

Showers and thunderstorms associated with an area of low pressure located several hundred miles southwest of the southwestern coast of Mexico have become a little less organized this morning. Environmental conditions appear conducive for development, however, and a tropical depression is expected to form during the next couple of days 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…80 percent
* Formation chance through 7 days…high…90 percent

 

Central North Pacific

>>> Well southeast of the Hawaiian Islands:

A broad area of low pressure located several hundred miles southeast of Hilo, Hawaii, is producing disorganized showers and thunderstorms. Development of this system is becoming less likely while it drifts generally west-northwestward.

* Formation chance through 48 hours…low…10 percent
* Formation chance through 7 days…low…10 percent

 

Northwest Pacific Ocean:

>>> There’s an area of disturbed weather being referred to as Invest 98W, which is located approximately 104 NM northeast 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

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



Interesting:  When Rust Falls from a Tree

Whether on a car, a garden fence, or a ship: a coat of paint protects against rust. But water takes its toll on any coating—from a rain shower to ocean waves. Until now, the damage was primarily attributed to mechanical wear on the surface or to interactions with acidic components in the droplets. Researchers at the Max Planck Institute for Polymer Research, led by Director Hans-Jürgen Butt, have now identified a previously unknown factor in collaboration with the Universities of Darmstadt and Bonn: the electrical charge of water droplets. They show that this charge damages surfaces over time—an effect that could open up new approaches for more durable coatings.

Many people are familiar with this from everyday life: the paint on a garden fence needs to be repainted after a few years—“the weather has taken its toll.” But even larger structures, from the Eiffel Tower to the Golden Gate Bridge, must be time-consuming repainted to maintain them. Until now, two main causes were considered the driving forces behind such damage to coatings: first, mechanical stress—that is, a kind of friction between droplets and the surface that gradually wears down the coating or causes it to flake off; and second, chemical factors, particularly when droplets contain acids or salts.

Read More: Max Planck Institute for Polymer Research

Image: Drops can become electrically charged as they slide across surfaces. If they then fall onto a coating—such as on a car—the coating can be corroded by the drop’s electrical discharge and permanently damaged.