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

 

The latest update to this website was at 545am Wednesday morning HST


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

3.14  N Wailua Ditch, Kauai
0.73  Kahuku, Oahu
0.00  Molokai
0.00  Lanai
0.00  Maui
0.23  Saddle Quarry, Big Island


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

35  Puu Opae, Kauai – SE
28  Paakea, Oahu – SE
14  Keopukaloa, Molokai – SE
25  Na Kula, Maui – NW
16  South Point, 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 Nolo west of Hawaii 


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Variable clouds are present over the island chain 

 

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Localized Showers…heavy around Kauai and Oahu

 

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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 Wednesday comments:  I’m at home here in upper Kula, Maui, Hawaii

424am, there’s some high cirrus clouds overhead here at my place, with the low temperature 58.5 degrees, relative humidity is 77%…with calm conditions


Hawaii’s Weather Highlights…as of Wednesday morning: The center of Tropical Storm Nolo has moved out of Hawaii`s offshore waters, and will travel west over the Papahanaumokuakea Marine National Monument waters the next several days. Bands of showers along Nolo`s eastern flank will move up from the south and pass across the islands the next few days, with Oahu and Kauai likely picking up the higher rainfall totals. Breezy southeast winds will persist through the day, weaken through late week, and then transition back to trades early next week.

Weather Narrative…as of Wednesday morning: Nolo, which was downgraded to a tropical storm last night, was located approximately 320 miles west of Barking Sands Beach, Kauai, and is drifting west. After slowly wobbling westward the next couple of days, Nolo is currently forecast by the National Hurricane Center to accelerate west this weekend.

Nolo`s far eastern outer bands are providing brief periods of light to locally moderate rain, as they quickly pass up from the south over Kauai and Oahu. While the bulk of the heaviest precipitation remains over the nearshore waters west of Niihau and Kauai the next couple of days, Nolo`s westerly motion will keep return periods of rain moving up from the south in the forecast over mainly the western third of the state through early Friday.

Nuisance flooding of lower lying areas and street ponding may occur, especially across Oahu and Kauai the next couple of days. Breezy southeast winds will continue across the state through Thursday. Southeast to east winds will weaken over the weekend, as Nolo races away to the west and slackens the gradient back toward the islands.

While Nolo will no longer directly impact the state, rain bands along Nolo`s eastern periphery will arrive within the east-southeast wind flow pattern through Friday. An additional 4 to 6 inches of rain with locally higher amounts near 10 inches, is forecast for Kauai and Oahu, respectively, the next few days. The quick passage of these rain bands over a span of a few days keeps the threat for any widespread significant flooding at bay.

Big Island will partially block Maui County from this east-southeast flow pattern. This will result in less cloudy skies over Maui County and leeward Big Island, as local land and sea breezes build interior upslope afternoon cloud cover, producing brief showers. East-southeasterly winds will gradually weaken this weekend with trades carrying in drier air are expected to briefly return early next week.

An upper low located northeast of the state is forecast to sink south early next week. This will push a weak cold front into the far eastern waters Monday or Tuesday. This weak boundary stalls in the vicinity of Big Island, and will disrupt mid to late week trade winds and ultimately produce very light and variable breezes. Relatively drier air behind this front may keep dew points just low enough under this very stagnant wind flow pattern…to decrease humidity levels.

Fire Weather:  Fire weather conditions will improve through the remainder of the week in response to higher southern moisture and moderate southeasterlies.

 

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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 Wednesday morning: Moderate to fresh south to southeast winds prevail for most areas as Tropical Storm Nolo slowly drifts westward away from the Hawaiian Islands. For waters surrounding Kauai, stronger southerly winds will continue through the day. Gentle to fresh east to southeast winds prevail across all waters by Thursday.

The moderate, medium period west to southwest swell originating from Nolo will continue for Niihau and Kauai today. A small background south swell continues for other islands. The next small boost in south swell energy will arrive early next week Monday and Tuesday.

Surf along other shores will remain small until moderate trades return early next week, providing a slight boost to east facing shores. Multiple rounds of tiny northwest swell energy will reach north and west facing shores into early next week, as the storms tracking near the Aleutian Islands become increasingly active.

 

>>> Highest Temperature Tuesday, September 29, 2026 – 104 degrees near La Puerta, TX


>>> Lowest Temperature Tuesday, September 29, 2026 – 22 degrees at Stanley, ID

 

Hawaii Landscape Photography | Tropical Island Art | Max Foster Photography


World-wide Tropical Cyclone Activity

 



>>> Here’s a link to the latest Pacific Disaster Center’s Weather Wall



Atlantic Ocean: 

Post-Tropical cyclone (Hanna) is located about 1230 miles east of Bermuda

HANNA BECOMES A REMNANT LOW PRESSURE AREA

According to the NHC advisory number 9

The post-tropical cyclone is moving toward the east near 5 mph (7 km/h). A turn toward the east-northeast is expected later today with an increase in forward speed on Thursday. Maximum sustained winds are near 35 mph (55 km/h) with higher gusts. The remnant low should gradually weaken during the next couple of days. The estimated minimum central pressure is 1008 mb (29.77 inches).

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Caribbean Sea: There are no active tropical cyclones


Gulf of America: There are no active tropical cyclones

 

Northeast Pacific

Tropical cyclone 18E (Rachel) is located about 380 miles west of Lazaro Cardenas, Mexico

RACHEL CONTINUES MOVING NORTHWESTWARD …WARNINGS AND WATCHES DISCONTINUED FOR THE COAST OF MEXICO

According to the NHC advisory number 14 

Rachel is moving toward the northwest near 9 mph (15 km/h). A northwestward motion at a slower forward speed is expected during the next day or two, followed by a turn toward the west-northwest and west later this week. On the forecast track, the center of Rachel is expected to move away from mainland Mexico and pass south of the Baja California Peninsula through Thursday.

Maximum sustained winds are near 85 mph (140 km/h) with higher gusts. Rapid strengthening is expected today and tonight, and Rachel could become a major hurricane within the next day or so.

Hurricane-force winds extend outward up to 25 miles (35 km) from the center and tropical-storm-force winds extend outward up to 160 miles (260 km). The estimated minimum central pressure is 978 mb (28.88 inches).

HAZARDS AFFECTING LAND

WIND: Gusts to tropical-storm force are possible along portions of the coast of southwestern Mexico through tonight.

RAINFALL: Rachel is expected to produce additional rainfall totals of 2 to 6 inches, with isolated maximum storm totals of 12 inches, across coastal portions of the Mexican states of Guerrero, Michoacán, Colima and Jalisco. This rainfall may produce life-threatening flooding and mudslides, especially in areas of steep terrain.

SURF: Swells generated by Rachel will affect the southwestern coast of Mexico during the next couple of days and spread northward along the coast of west-central Mexico and the Baja California Peninsula through the end of the week. These swells are likely to cause life-threatening surf and rip current conditions.

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Tropical cyclone 19E is located about 1345 miles west-southwest of the southern tip of Baja CA

TROPICAL DEPRESSION NINETEEN-E A LITTLE STRONGER

According to the NHC advisory number 5 

The depression is moving toward the east near 10 mph (17 km/h). An eastward to east-northeastward motion is expected over the next day or so. Maximum sustained winds have increased to near 35 mph (55 km/h) with higher gusts. Little change in strength is forecast during the next day or so, and this system is expected to degenerate into a post-tropical remnant low by late Thursday. The estimated minimum central pressure is 1002 mb (29.59 inches).

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>>> South of Southern Mexico:

An area of low pressure could form late this weekend or early next week south of the southern coast of Mexico. Thereafter, environmental conditions appear favorable for gradual development, and a tropical depression could form while the system moves slowly west-northwestward to northwestward.

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

 

Central North Pacific:

Tropical Cyclone 15E (Nolo) is located about 360 miles west of Lihue, Hawaii

NOLO CONTINUES TO BRING DANGEROUS CONDITIONS TO PORTIONS OF THE PAPAHANAUMOKUAKEA MARINE NATIONAL MONUMENT…TROPICAL STORM WARNING ISSUED FOR THE PAPAHANAUMOKUAKEA MARINE NATIONAL MONUMENT FROM FRENCH FRIGATE SHOALS TO MARO REEF

According to the NHC advisory number 40

Nolo is moving toward the west-southwest near 6 mph (9 km/h) across the Papahanaumokuakea Marine National Monument. A westward to west-northwestward motion at a slower forward speed is expected over the next couple of days, followed by a faster motion by this weekend. Maximum sustained winds are near 60 mph (95 km/h) with higher gusts. Little change in strength is expected over the next day or so, followed by re-intensification later this week. Tropical-storm-force winds extend outward up to 125 miles (205 km) from the center. The estimated minimum central pressure is 991 mb (29.27 inches).

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Northwest Pacific Ocean:

Tropical Cyclone 25W (Surigae)…is located approximately 215 NM south-southwest of Yokosuka, Japan – Final Warning

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Tropical Cyclone 26W…is located approximately 304 NM east of Saipan

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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:  What Stalagmites Reveal About the Climate

Dominik Fleitmann, how did you come to study the climate using stalagmites?

It was through my doctoral research. Using stalagmites as climate archives is a relatively young field. Previously, we mainly knew this kind of approach from ice cores, tree rings, or lake sediments. But stalagmites also give us a very precise view into the past.

How far back have you been able to look?

We studied a stalagmite from Saudi Arabia that was 8 million years old. When we discovered it, our instruments were not yet capable of dating it that far back. That only became possible later.

What can you see in a stalagmite?

An enormous amount. For one thing, we can determine its age with a precision of up to about ten years. To do this, we use radioactive elements: uranium is incorporated into the stalagmite as it grows and gradually decays into thorium. We can measure this process and use it to determine the age with high precision.

Read More: University of Basel