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

 

The latest update to this website was at 150pm Saturday afternoon HST


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

0.16  Mount Waialeale, Kauai
0.15  Manoa Lyon Arboretum, Oahu
0.03  Puu Alii, Molokai
0.00  Lanai
0.23  West Wailuaiki, Maui
2.09  Spencer, Big Island


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

18  Nawiliwili, Kauai – NE
31  Oahu Forest NWR, Oahu – E 
27  Makapulapai, Molokai – ESE  
15  Lanai 1, Lanai – NE
36  Kealaloloa Rg, Maui – NE
33  Puuloa, 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.

https://weather.gc.ca/data/satellite/goes_gwdisk11_1070_100.jpg

Big Blue…click twice for largest version

 

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 Tropical Cyclone 01E (Amanda) in the eastern Pacific (it won’t be a threat to Hawaii)

 

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Variable low clouds 

 

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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 the current Watches, Warnings and Advisories noted above




~~~ Hawaii Weather Narrative ~~~

 

Glenn’s Saturday comments:  I’m at home here in upper Kula, Maui, Hawaii

It’s mostly clear with some clouds along the windward sides here in Maui County, with calm winds at my place, and with a chilly low of 49 degrees and the relative humidity is 75%


>>> Highest Temperature Friday, June 5, 2026 – 115 degrees at Death Valley, CA
>>> Lowest Temperature Saturday, June 6, 2026 – 24 degrees at Stehekin, WA

 

>>> Interesting Web blog:  Mauka Showers…Central North Pacific Tropical Cyclone Tracks in Strong El Niño Summers

 

Hawaii’s Broad Brush Weather Overview…as of Saturday afternoon: High pressure to the north of the state will maintain steady east to east-northeasterly trade winds for the next several days. Moisture values oscillating near average, should keep convective activity limited, with just the typical daily windward showers expected. The high begins to weaken and pull away by the middle of next week, with the main impact just being a decrease in wind speeds. Hazardous weather is currently not anticipated through the forecast period.

Weather Details for the Hawaiian Islands…as of Saturday afternoon: Satellite and radar trends show low level clouds and scattered showers ongoing across the island chain, mainly impacting windward and mountain locations. A 1030 millibar high pressure system located far north of the islands, will remain in place through the first half of next week.

Stable and breezy trade winds expected. Showers will mainly impact windward and mountain locations, particularly in the overnight to early morning hours. By the later half of next week, a cold front passing far to the north of the state of Hawaii could push the surface high pressure system east, decreasing trade wind speeds.

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 Environmental Conditions…as of Saturday morning: An area of high pressure will reside far northeast of the islands through the remainder of this weekend, and help maintain fresh to strong easterly trades. A Small Craft Advisory will remain in effect for all local coastal waters through at least Sunday morning. Trade winds will ease slightly early next week as high pressure once again shifts away to the northeast, though Small Craft Advisories for the typical windy waters surrounding Maui County and the Big Island may still be warranted.

South-southwest swell will gradually fade today. Thus, surf will remain on the smaller side through Sunday afternoon, near the June average. A fresh, small long-period (18-20 sec) south swell is expected to arrive late Sunday and peak on Monday. The source of this new swell is a storm-force low that passed southeast of New Zealand last weekend. Thus, expect a brief bump up in surf along south facing shores, but still below advisory-level. This swell will gradually fade into mid-week.

Along north-facing shores, a small short to medium period north swell will continue to fade this weekend and into early next week. Surf along east- facing shores will remain choppy through mid-next week as locally strong trades persist.

 

Tunnels Beach - Hawaii Travel Guide


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

Tropical cyclone formation is not expected during the next 7 days.

>>> Caribbean Sea: There are no active tropical cyclones

Tropical cyclone formation is not expected during the next 7 days.

>>> Gulf of America: There are no active tropical cyclones

Tropical cyclone formation is not expected during the next 7 days.

Here’s the link to the National Hurricane Center (NHC)

 

>>> Eastern Pacific: 

Tropical Cyclone 01E (Amanda)

AMANDA WEAKENS TO A TROPICAL DEPRESSION

According to the NHC advisory number 17…Amanda is located about 1445 ESE of Hilo, Hawaii

The depression is moving toward the southwest near 5 mph, and this general motion is expected to continue through Sunday, followed by a turn toward the west-southwest Sunday night or Monday. Maximum sustained winds have decreased to near 35 mph with higher gusts. Gradual weakening is forecast through the weekend, and Amanda is expected to degenerate into a remnant low by late Sunday.

 

>>> Offshore Southern and Southwestern Mexico:

Invest 91E

A low pressure system located a couple of hundred miles south of Zihuatanejo, Mexico is producing a broad area of showers and thunderstorms. This system has become more organized today and a tropical depression will likely form tonight or tomorrow. The disturbance is forecast to move northeastward and then northward, and will approach the coast of southern Mexico Sunday night and Monday. Interests in southern Mexico should monitor the progress of this system. Regardless of development, heavy rainfall and life-threatening flash flooding are possible across portions of southern Mexico through early next week.

* Formation chance through 48 hours…high…80 percent
* Formation chance through 7 days…high…80 percent

 

>>> Offshore of Central America:

Invest 92E

Shower and thunderstorm activity associated with a broad area of low pressure offshore of Central America has changed little in organization during the last several hours. Additional development is still expected, and a tropical depression is likely to form during the next day or two while the system moves slowly northward toward the coast of Central America. Interests along the Pacific coasts of northwestern Costa Rica, Nicaragua, Honduras, and El Salvador should monitor the progress of this system. Regardless of development, heavy rainfall and life-threatening flash flooding are possible across portions of Costa Rica, Nicaragua, El Salvador, and Guatemala through early next week.

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

Here’s the link to the National Hurricane Center (NHC)

 

>>> Central Pacific: There are no active tropical cyclone

Tropical cyclone formation is not expected during the next 7 days.

Here’s the link to the Central Pacific Hurricane Center (CPHC)

 

>>> Northwest Pacific Ocean:  There are no active tropical cyclones

>>> Southwest Pacific Ocean: There are no active tropical cyclones

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

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



Interesting:  A Plan to Preserve Wetlands Without Stopping Development

Balancing economic growth and environmental protection is not easy. Consider wetlands, which provide flood protection, aid water quality, and are linchpins of larger ecosystems. How can we best preserve wetlands while enhancing economic activity?

According to a new study, one solution involves supplanting traditional conservation mandates, which require replacing affected wetlands locally, with tradeable offsets. Through this system, a developer can build on a wetland by purchasing credits representing an equivalent environmental value created by improving a wetland somewhere else in the same watershed, away from concentrated development.

While this has largely been the approach of U.S. federal and state regulators since the mid-1990s, current regulations do not account for the flood protection benefits of wetlands. The new study finds a workable solution in an offset policy that also includes a locally varying tax on development, precisely to compensate for the increased flood risk it causes.

Read More at: Massachusetts Institute of Technology