Glenn James

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

 

The latest update to this website was 530am Sunday morning HST


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

11.70  N Wailua Ditch, Kauai
5.95  Maunawili, Oahu
0.29  Puu Alii, Molokai
0.01  Lanai City, Lanai
0.58  Kahikinui 1, Maui
1.53  Honolii Stream, Big Island


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

14  Lawai, Kauai – NE
13  Palehua, Oahu – NE
08  Kalae Hwy, Molokai – NW
21  Lanai 1, Lanai – NE
20  Nene Nest, Maui – SW
14  Puu Mali, Big Island – SE


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

 

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

 Multi-layered clouds…with thunderstorms west…and a cold front far northwest

 

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Variable clouds over and around Hawaii

 

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

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Localized Showers…some heavy 

 

https://www.weather.gov/wwamap/png/hfo.png

 

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

421am HST, it’s clear in Corte Madera, CA…and we had a light shower overnight, the low temperature was 40 degrees here at Linda’s…with calm winds

 

The Top Things to Do in Oahu, Hawaii | Condé Nast Traveler

 

 

Hawaii’s Weather Highlights…as of Sunday morning: Drier air will move into the region today from west to east, as the southern end of a cold front brings northeast trade winds back to the state. Moderate to breezy trades will be with us through the coming week, along with the typical showers occurring mainly in windward and mauka regions. A tropical storm may develop to our southeast later this coming week (NHC has the chance at 50%). If it forms, it is not expected to move toward Hawaii.

Weather Narrative…as of Sunday morning: A significant area of strong and often persistent showers that moved over Kauai yesterday has diminished overnight. Flooding occurred on Kauai, including water over Kuhio Highway near Hanalei. Radar shows an area of light to moderate showers mainly south of Oahu, with additional scattered showers extending from around Kona to near Upolu on the Big Island.

A weak front will bring drier air to the state today, moving in from west to east. The strongest part of the front will remain well north of the area, but a change to northeast trade winds will occur. The Big Island will be the last island to experience the drier air, and showers will continue there into this afternoon. Additional light trade wind showers, mainly windward and mauka, will continue even after the drier air reaches the state.

A surface high will move east to a position around 500 miles to our north Monday, and generally remain there through Wednesday. Later in the week, this high will be replaced by a new high centered to our northwest moving in from the west, keeping the trades going. By this time, moisture will have increased somewhat, but not nearly as high as what we have experienced the past few days. Light trade wind showers will be with us, but heavy rain is not in the forecast.

Finally, some model runs show a tropical system forming to our southeast late the coming week. The models that do show this have the potential system moving west and staying to our south. NHC has a 50% chance of formation within 7-days. We will need to keep an eye out for any increase in model consistency, and of course for guidance from NHC, through the coming days.

Fire Weather: Recent wet weather has lowered fire concerns due to wet fuels. Trades with drier air will move into the region today, and wind speeds will increase and remain elevated through at least Wednesday. The temperature inversion from Maui to the Big Island was around 9,000 feet this morning, and is expected to lower to around 7,000 feet by 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 Sunday morning: A trough to the northwest of Kauai will sink southward across the island chain today and tonight, with high pressure to the north, behind the trough, causing fresh to strong northeast winds to overspread the region. A Small Craft Advisory (SCA) is in effect for all coastal waters as a result. Waves will also exceed 10 feet for exposed waters with the arrival of a north-northwest (330 degree) swell. This swell also brings high surf to north and west facing shores of Kauai and Oahu, as well as north facing shores of Maui and Molokai, for which a High Surf Advisory is in effect. Moderate to locally strong northeast trades are expected to continue through much of the week.

The arrival of a moderate, long-period northwest swell will bring surf quickly building to advisory levels along north- and west-facing shores. The swell peaks later today before beginning a decline on Monday. However, advisory level surf is expected to linger through at least Monday morning before falling to more moderate levels by Monday evening. Another advisory level northwest swell is possible Thursday into Friday, and moderate to large surf action appears to continue into next weekend.

The current moderate, medium period south swell will hold today near seasonal average before declining on Monday. South shore surf will be tiny through much of the week, with little southerly background energy reaching the islands.

East-facing shores will see an increase in trade wind swell as northeast winds return today. Surf along east- facing shores will increase through Monday night and conditions will stay choppy as trades continue through much of the week. A north-northeast trade wind swell (around 30 degrees) this week will reach moderate levels, but remains short-period, so the threat of harbor surges appears less likely.

 

>>> Highest Temperature Saturday, October 31, 2026 – 94 degrees near Hidalgo, TX


>>>
Lowest Temperature Saturday, October 31, 2026 – 12 degrees at Mount Washington

 

Lush Greenery and Mountains in Hawaii's Oahu · Free Stock Photo


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 in a couple of days. Thereafter, environmental conditions appear generally favorable for gradual development of this system, and a tropical depression could form by the middle to end of the 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…50 percent 

 

Northwest Pacific Ocean:

Tropical Cyclone 30W (In-fa)…is located approximately 206 NM southeast of Iwo To

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 04B (Murasu)…is located approximately 644 NM south-southwest of Kolkata, India

https://www.metoc.navy.mil/jtwc/products/io0426.gif

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

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



Interesting: 
Global Chocolate Supply Threatened by Disease, New Cacao Plant Offers Solution

Chocolate lovers may not realize it, but the future of one of the world’s most popular foods is increasingly under pressure. Diseases, shifting weather patterns and other environmental stressors are threatening cacao production globally, contributing to supply concerns and economic challenges for the millions of farmers who grow the crop that makes chocolate possible.

Now, after decades of research, Penn State scientists have developed a new disease-tolerant variety of cacao — and they said it has the potential to fundamentally change the chocolate industry.

The new cacao variety builds on decades of research led by Mark Guiltinan, J. Franklin Styer Professor of Horticultural Botany and professor of plant molecular biology in the Department of Plant Sciences at Penn State’s College of Agricultural Sciences, and Siela Maximova, research professor of plant biotechnology in the same department.

Read More at: Penn State University

Just-harvested cacao pods display a range of vivid colors.