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

 

The latest update to this website was at 1014am Tuesday morning HST


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

2.73  Mount Waialeale, Kauai
1.10  Tunnel RG, Oahu
0.29  Puu Alii, Molokai
0.12  Lanai AP, Lanai
2.63  Puu Kukui, Maui
2.94  Spencer, Big Island


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

25  Lawai, Kauai – NE
31  Kuaokala, Oahu – NE
22  Molokai AP, Molokai – NE
27  Lanai 1, Lanai – NE
33  Kealaloloa Rg, Maui – NNE
25  Kealakomo, Big Island – NNE


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

Upper level low northwest…thunderstorms in the deeper tropics

 

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Variable low clouds…high level cirrus clouds moving over us from the southwest

 

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

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

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

Localized showers 

 

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

Please open this link to see details on any current Watches, Warnings and Advisories noted above




~~~ Hawaii Weather Narrative ~~~

 

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

508am, it’s clear with a few altocumulus clouds here in upper Kula with calm winds, and a low temperature at my place of 54.5 degrees…with the relative humidity 81%

 

>>> Highest Temperature Monday, June 29, 2026 – 112 at Rio Grande Village, CA
>>> Lowest Temperature Tuesday, June 30, 2026 – 19 degrees at Peter Sinks, UT

 

Hawaii’s Weather Highlights…as of Tuesday morning: Moderate to locally breezy trade winds will continue through the weekend. Bands of low clouds and showers will be carried in on the trades, focused primarily over windward and mountain areas during the overnight and early morning hours. An enhanced area of moisture is expected to reach the islands tonight through Wednesday, bringing more widespread showers. Humidity levels will rise, bringing muggier conditions across the island chain through mid-week. Additional areas of increased low level moisture are possible this coming weekend.

Weather Commentary…as of Tuesday morning: Satellite shows variably cloudy skies, with radar only picking up on isolated light showers. The few showers detected by radar were mainly over windward areas of Big Island and Maui. Clouds were primarily low level trade wind cumulus moving in from the east, with a few high-level cirrus associated with the subtropical jet moving in from the west- southwest. Winds were averaging 5 to 15 mph sustained, with gusts generally 15 to 25 mph.

High pressure will remain far north of the state for the coming week, as it slowly drifts west. Moderate to breezy trade winds will continue, with showers mainly windward and mountains, and most numerous at night.

One significant area of increased low level moisture will move in from the east tonight and Wednesday, spreading more numerous showers to windward and mountain areas, and increasing the chance for noticeable spillover to leeward areas. Brief heavy rain is possible, but the risk for flooding is low. Surface dew points will increase into the lower 70’s by tonight as this moist area moves through, then drop back into the mid to upper 60’s from Wednesday night into the weekend…prompting less muggy conditions.

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 Tuesday morning: A surface high pressure will remain centered well north of the Hawaiian Islands this week, and help generate moderate to fresh trades trades across our island chain. A Small Craft Advisory (SCA) is in effect for the typical windy waters around Maui County and the Big Island. The SCA advisory will likely need to be extended for these areas through much of this week with the persistent trades.

The long-period south swell is slowly fading and will continue to decline, leading to decreasing south and west shore surf through Wednesday. A small rise in surf along south- facing shores is possible Thursday into Friday with the arrival of a small, long-period south swell, although another larger long-period south swell energy pulse should arrive by late Saturday.

Surf along east-facing shores will remain rough and choppy through the week, with moderate to fresh trades in place. Nearly flat surf heights will persist along north facing shores.

 

Natural Area Reserves System – Division of Forestry and Wildlife: Native Ecosystems Protection & Management


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

Offshore of the southeastern coast of the U. S.:

A weak area of low pressure located along a frontal boundary off the southeastern U.S. coast is associated with limited shower and thunderstorm activity. The proximity of nearby dry air is expected to prevent development of this system as it drifts southward and then westward later this week.

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

 

>>> 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)

 

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

Western East Pacific:

Invest 95E

An area of low pressure located well southwest of the southern tip of the Baja California Peninsula is producing showers and thunderstorms that continue to show signs of organization. A tropical depression is expected to form tonight or on Wednesday while the system moves generally northwestward and then northward, remaining over the western portion of the East Pacific.

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

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

 

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

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:  Pollution Is Changing the Smells of Nature, With Risks for Wildlife

In Egypt, increasing temperatures are shrinking yields of aromatic jasmine flowers; in France, extreme drought has reduced the production of fragrant, night-blooming tuberose, a major ingredient in many perfumes; in Italy, climatic extremes are altering the characteristic floral, citrusy scent of bergamot.

But anthropogenic factors are also reshaping environmental smellscapes, a word coined in the 1980s to describe the totality of scents in a given geographic area, in ways that are far more subtle — and potentially much more harmful.

While humans largely rely on sight and sound in our interactions with each other and with the world around us, many other creatures rely on smells. Ants, for example, require scents for colony cohesion; turkey vultures let scent guide them to far-away carrion; and male moths use scent to find females hundreds of meters away. “Scent is very important because it mediates so many interactions within an ecosystem,” says James Blande, a chemical ecologist at the University of Eastern Finland.

Read More at: Yale Environment 360