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

 

The latest update to this website was 511pm Friday evening HST


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

7.35  Mount Waialeale, Kauai
3.51  Tunnel RG, Oahu
1.03  Honolimaloo, Molokai
0.08  Lanai 1, Lanai
5.44  West Wailuaiki, Maui
16.11  Honolii Stream, Big Island!


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

18  Lihue, Kauai – NE
18  Bellows AFS, Oahu – NE
14  Makapulapai, Molokai – E
21  Lanai 1, Lanai – NE
22  Kealaloloa Rg, Maui – NNE
13  Upolu AP, 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

 

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

 Multi-layered clouds…with thunderstorms in the vicinity

 

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Variable clouds over and around Hawaii

 

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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 Aloha Friday comments:  I’m at my friend Linda’s here in Corte Madera, Marin County, CA on a working vacation.

402am HST, it’s mostly clear with thin high clouds here in Corte Madera, CA, the low temperature was 42.5 degrees…with calm winds

939am HST, I’m just back from playing some rousing pickleball games in Mill Valley, which was very fun! The weather is really nice, almost like summer or definitely Indian Summer.

1213pm, it’s one of those days when it’s warm in the sunshine and slightly cool in the shade.

 

Hawaii’s Weather Highlights…as of Friday evening: Moderate trade winds will focus clouds and showers over windward and mauka areas through Saturday, along with the development of typical afternoon showers over the kona slopes of the Big Island. The tail end of a front will try to move down the island chain late Sunday through Monday, bringing breezy northeasterly trades and drier air in its wake. Then breezy easterly trades will bring periods of windward and mauka showers through the rest of next week.

Weather Narrative…as of Friday evening: Radar and satellite imagery show moderate trade winds focusing low clouds and showers over windward and mauka areas across the state, as trades finally fill in across the Big Island. With abundant tropical moisture lingering over the region, isolated heavy downpours will remain possible over the Big Island, where the greatest moisture and instability persist.

Heading into Friday, model soundings show more stable conditions developing, leading to a more typical trade wind pattern through the weekend, with passing windward and mauka showers. The next pattern change arrives late Sunday into Monday, as an upper-level trough sweeps across the north-central Pacific, and the tail end of a frontal boundary attempts to push down the island chain.

An increase in windward and mauka showers can be expected ahead of and along this boundary, with breezy northeast winds and drier air filtering in its wake, as high pressure builds to the north. This will bring welcome relief from this week`s muggy conditions, with dew points projected to drop into the lower 60’s on Monday and Tuesday.

The surface high north of the state will become elongated as a broad low pressure system tracks across the North Pacific, maintaining breezy easterly trades across the islands through the work week. As batches of moisture filter through on the trades, periods of enhanced windward and mauka showers can be expected.

One of these increases in shower activity looks to occur mid-week, as increased moisture moves in on the trade wind flow and a weak mid-level trough adds some instability as it sweeps across from the east.

By next weekend, noticeable model spread emerges between the GFS and ECMWF. While trade winds look to persist, questions remain regarding their strength and how much moisture they’ll bring to the area. The GFS continues to hint at a tropical cyclone developing far southeast of the state, whereas the ECMWF does not. The National Hurricane Center continues to monitor this area, maintaining a medium (40 percent) chance of development over the next 7-days.

Fire Weather: Recent rain and light to moderate trade winds will maintain low fire weather concerns through Saturday. As a weak front passes through early next week, bringing breezy northeasterly winds and drier air to the region, fire weather concerns will become moderate.

 

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                                              : High pressure to the north will bring moderate to fresh trades to the region into the weekend. As the trades build, a Small Craft Advisory will likely be needed for the typical windier waters, and an incoming north-northwest swell will bring high seas to exposed waters.

The current small, short period north-northeast swell will maintain small surf along north-facing shores Saturday. A larger, long-period northwest swell is expected to arrive late Saturday and will bring advisory level surf to north and west facing shores, exposed to the swell Sunday into Monday. The swell is expected to shift slightly more northerly and may briefly build further on Monday before dropping Tuesday. Depending on the exact direction, a Marine Weather Statement may eventually need to be issued, due the potential for harbor surges at Kahului and Hilo during that time.

The current small, medium period south swell will gradually decline through the weekend. During the first half of next week, south shore surf will return to below seasonal averages. East- facing shores will continue to be boosted due to the wrap from the north and southerly swells. As the larger north swell builds in Sunday night and Monday, the wrap from that will have the potential for advisory level surf during that time.

 

>>> Highest Temperature Friday, October 30, 2026 – 92 degrees near Ochopee, FL


>>> Lowest Temperature Friday, October 30, 2026 – 18 degrees near Grand Lake, CO

 

Hawaiian Islands | Hawaii Landscape Photography | Scott Smorra


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:

 

Central North Pacific: There are no active tropical cyclones

>>>Well Southeast of the Hawaiian Islands:

A broad area of low pressure is forecast to develop well to the southeast of the Hawaiian Islands by early next week. Thereafter, environmental conditions appear generally favorable for some gradual development of this system, and a tropical depression could form by the end of next week as it moves westward to west-northwestward over the Central Pacific basin.

* Formation chance through 48 hours…low…near 0 percent
* Formation chance through 7 days…medium…40 percent 

 

Northwest Pacific Ocean:

Tropical Cyclone 30W (In-fa)…is located approximately 215 NM south-southeast of Iwo To

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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:  Powering Solar-Powered Flight

Study reveals battery performance targets for solar stratospheric aircraft.

A sleek, pilotless, solar-powered airplane that soars through the atmosphere to monitor climate or track wildfires was once just an idea.

Now, these high-altitude specialty aircraft are advancing from early prototyping demonstrations towards potential commercial applications, supported by decades of research and development involving Harvard scientists, aerospace engineers, and industry collaborators.

In a new paper published in ACS Energy Letters, researchers in the John A. Paulson School of Engineering and Applied Sciences (SEAS), in collaboration with partners in industry and the University of Michigan, lay out a pathway to clearing the most significant hurdle still facing extended solar flight: battery performance.

Read More: Harvard John A. Paulson School of Engineering and Applied Sciences

Image: Solar aircraft can fly through the stratosphere to collect atmospheric and climate data.