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

 

The latest update to this website was at 730am Monday morning HST


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

0.23  Hanamaulu, Kauai
0.06  Kalawahine, Oahu
0.00  Molokai
0.00  Lanai
0.21  West Wailuaiki, Maui
0.97  Saddle Quarry, Big Island


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

31  Puu Lua, Kauai – ENE
38  Oahu Forest NWR, Oahu – ENE 
35  Makpulapai, Molokai – E
36  Kamehamenui 1, Maui – SE
24  Upolu AP, Big Island – ESE


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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  Category 4 Hurricane Nolo southwest of Hawaii…with continued tropical cyclone activity near Mexico


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Variable clouds are present over the island chain…Hurricane Nolo moving by to the southwest 

 

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

540am, it’s totally clear here at my place, with the low temperature 56 degrees, relative humidity is 77%…with near calm conditions

 

Well, very long-lasting Tropical Cyclone Nolo has passed us by, although not by much, and is still a very potent hurricane to the southwest of Hawaii. Its intensity is still very impressive, as it clocks in with sustained 155 mph winds, with gusts as high as 190 mph! This qualifies as a major Category 4 Hurricane!

Nolo is topping out in strength now and will begin to wind down tonight, although the models suggest that there could be some re-strengthening later this week…however by then it will be far away from Hawaii. There was some worry that Nolo could come close to Kauai around mid-week, although that has become unlikely at this point.

Interestingly enough, the models are suggesting that we might see the approach of our first cold front of the season, which may approach Kauai early next week. It’s very early for such an occurrence, although we’ll take a cold front over a Category 4 hurricane any day of the week!


Hawaii’s Weather Highlights…as of Monday morning: Deepening high pressure north of the state will produce drier and fair conditions across the island chain through Tuesday. Major hurricane Nolo will continue to move west away from the state. Nolo is expected to turn toward the northwest on Tuesday and Wednesday, passing west of Kauai and Niihau. Trailing moisture associated with the eastern part of Nolo`s circulation will bring an increase in shower activity beginning on Tuesday night and continuing into Thursday. A high pressure system will re-establish again by the end of the week.

Weather Narrative…as of Monday morning: Radar images detected an increase in trade wind showers across the coastal waters. These showers were moving mainly northeast of the islands with some making their way into Molokai and Oahu from time to time. Rainfall accumulation were minimal. A relatively dry weather pattern is expected to continue statewide through Tuesday, as a high pressure system briefly dominates the area. Winds have diminished since yesterday.

Major hurricane Nolo continues to move west away from the local region. However, by Tuesday Nolo is expected to turn northwest passing around 200 miles west of Niihau and Kauai. Although the center of the hurricane will pass a safe distance from the islands, trailing moisture associated with Nolo`s circulation is expected to affect both islands, and possible Oahu from Tuesday night into Wednesday.

Latest model guidance are projecting rainfall accumulation between one to two inches. Although no significant flooding is expected at this time, we will need to monitor the evolution of Nolo, as latest guidance is showing deep tropical moisture moving over the islands from Tuesday through Thursday, which could enhance the amount of rainfall expected. Precipitable water values are expected to increase from 1.10 inches up to 2.40 inches by Tuesday night and Wednesday.

In the long term, no significant weather events are forecast to affect the state, as a high pressure system builds north and northeast of the area.

Fire Weather:  Dry weather conditions are expected to prevail across the state today into Tuesday. An increase in shower activity is expected on Tuesday and Wednesday, as deep tropical moisture makes its way towards the islands as Hurricane Nolo passes west of the area. Fire concern will remain low for now as relative humidity values will remain above critical levels and winds have diminished as well.

 

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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 Monday morning: Strong to near gale force trade winds and large, rough seas will gradually diminish through tonight, as high pressure far north of the state begins to weaken and Hurricane Nolo, several hundred miles southwest of the Hawaiian Islands, moves farther west. The Small Craft Advisory (SCA) for all Hawaiian coastal waters (with the exception of Maalaea Bay) has been extended through tonight. Beyond that point, trade winds are expected to weaken below small craft advisory for most waters.

Higher seas and strong winds may persist for favored channels and waters near Kauai, where the current National Hurricane Center forecast has Nolo tracking west on Wednesday. Expect moderate to locally strong winds to veer out of the east-southeast to southeast during this time. Winds will gradually ease and back more easterly by Thursday, as Nolo moves westward away from the islands.

A mix of long to medium period south-southwest swell and building short to medium south swell from powerful Hurricane Nolo now located southwest of the Hawaiian Islands, will bring advisory level surf to south facing shores of all islands and west facing shores of the Big Island today. The hurricane-generated swell will gradually shift southwest, then west, as Nolo tracks northwest roughly parallel to the islands through Wednesday.

While the forecast currently shows this swell gradually decreasing, and in particular, falling below advisory criteria tonight, Nolo is forecast to remain a major hurricane through Tuesday, which could maintain advisory level surf for longer than currently depicted. By mid-week, these swells will originate from the west and be diminishing as the hurricane will be weaker and it begins to track away from the islands.

East shore surf will slowly decline through Wednesday as trade winds diminish. However, small, medium period swells from distant East Pacific hurricanes will maintain moderate surf during the remainder of the week. On north facing shores, a small, medium period swell will fade through Wednesday. Some wrapping west swell from Hurricane Nolo is possible by Wednesday.

 

>>> Highest Temperature Sunday, September 27, 2026 – 105 degrees at Comanche, TX


>>> Lowest Temperature Sunday, September 27, 2026 – 17 degrees near White Sulphur Springs, MT

 

Hawaii Day 9, Part I: Prelude to The Hana Highway | Lightscapes Nature Photography Blog


World-wide Tropical Cyclone Activity

 



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



Atlantic Ocean: 

Tropical cyclone (Fay) is located about 1170 miles west-southwest of the Azores

 

FAY HOLDING ON AS A TROPICAL CYCLONE FOR NOW

According to the NHC advisory number 32

The depression is moving toward the south near 6 mph. A south-southwest to southwest motion is expected over the next couple of days, followed by a turn toward the west-southwest with an increase in forward speed by mid-week. Maximum sustained winds are near 30 mph with higher gusts. Fay will likely become a remnant low in a day or two, and dissipate later in the week. The estimated minimum central pressure is 1012 mb (29.89 inches).

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Tropical cyclone (Hanna) is located about 870 miles east-northeast of Bermuda

 

TROPICAL STORM HANNA FORMS IN THE CENTRAL SUBTROPICAL ATLANTIC

According to the NHC advisory number 1

Hanna is moving toward the east near 17 mph An east to east-southeast motion is forecast over the next few days. Satellite wind data indicates that maximum sustained winds are near 45 mph with higher gusts. Little change in strength is forecast during the next couple of days. Tropical-storm-force winds extend outward up to 90 miles from the center. The estimated minimum central pressure is 1006 mb (29.71 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 17E (Polo) is located about 85 miles west-southwest of Cabo San Lazaros, Mexico

POLO STILL A MAJOR HURRICANE AS IT APPROACHES THE BAJA CALIFORNIA PENINSULA …CONDITIONS TO SOON DETERIORATE AS LIFE-THREATENING WINDS AND FLASH FLOODS EXPECTED OVER PORTIONS OF BAJA CALIFORNIA SUR AND SONORA TODAY AND TUESDAY

According to the NHC advisory number 32

Polo is now moving toward the northeast near 10 mph and this motion with gradual acceleration is expected this afternoon through Tuesday. On the forecast track, the center of Polo is expected to move inland along the coast of Baja California Sur this evening, then move inland into southern Sonora on Tuesday morning.

Maximum sustained winds are near 115 mph with higher gusts. Polo is a category 3 hurricane on the Saffir-Simpson Hurricane Wind Scale. Fluctuations in intensity are possible today. However, Polo is forecast to be near major hurricane strength when it reaches Baja California Sur this evening, and is anticipated to be a hurricane when it makes landfall in mainland Mexico late early Tuesday morning. Rapid weakening is expected after Polo moves well inland into mainland Mexico.

Hurricane-force winds extend outward up to 40 miles from the center and tropical-storm-force winds extend outward up to 105 miles. The estimated minimum central pressure is 958 mb (28.29 inches).

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Tropical cyclone 18E (Rachel) is located about 230 miles south-southwest of Acapulco, Mexico

RACHEL A LITTLE STRONGER AS IT MOVES WEST-NORTHWESTWARD …TROPICAL STORM WARNING ISSUED FOR A PORTION OF THE COAST OF SOUTHWESTERN MEXICO

According to the NHC advisory number 6 

Rachel is moving toward the west-northwest near 8 mph. A continued west-northwestward motion at a faster forward speed are expected for the next few days. On the forecast track, the center of Rachel is expected to move parallel to, but stay offshore of, the coast of southwestern Mexico. Maximum sustained winds are now near 50 mph with higher gusts. Gradual strengthening is expected during the next few days, and Rachel is forecast to become a hurricane by mid-week. Tropical-storm-force winds extend outward up to 160 miles from the center. The estimated minimum central pressure is 999 mb (29.50 inches).

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Central North Pacific:

Tropical Cyclone 15E (Nolo) is located about 410 miles southwest of Honolulu, Hawaii

HURRICANE WARNING ISSUED FOR A PORTION OF THE PAPAHANAUMOKUAKEA MARINE NATIONAL MONUMENT

According to the NHC advisory number 32

Nolo is moving toward the west-northwest near 13 mph. A turn toward the northwest is forecast later today, with a turn toward the north expected on Tuesday. On the forecast track, the center of Nolo will remain well southwest of the main Hawaiian Islands but will approach the Papahanaumokuakea Marine National Monument on Tuesday. Maximum sustained winds are near 155 mph with higher gusts. Nolo is a category 4 hurricane on the Saffir-Simpson Hurricane Wind Scale. A gradual weakening trend is likely to begin tonight, followed by faster weakening through the middle of the week. Hurricane-force winds extend outward up to 40 miles from the center and tropical-storm-force winds extend outward up to 150 miles (240 km). The estimated minimum central pressure is 929 mb (27.44 inches).

HAZARDS AFFECTING LAND 

WIND: Hurricane conditions are expected in the Hurricane Warning area in the Papahanaumokuakea Marine National Monument by Wednesday, with Tropical Storm conditions likely by Tuesday.

SURF: Swells generated by Nolo will affect south-facing shores of the main Hawaiian Islands for the next few days. These swells are likely to cause life-threatening surf and rip current conditions. Large surf associated with Nolo will affect the Papahanaumokuakea Marine National Monument beginning later today. These large waves will likely inundate some of the low-lying atolls, especially from French Frigate Shoals to Nihoa.

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>>> Well East-Southeast of the Hawaiian Islands:

A broad area of low pressure located well east-southeast of the Hawaiian Islands continues to become better organized. Environmental conditions are conducive for further development, and a tropical depression is expected to form later today or tomorrow. The system should move generally northeastward and remain well east of the Hawaiian Islands.

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

 

Northwest Pacific Ocean:

Tropical Cyclone 25W (Surigae)…is located approximately 586 NM southwest of Yokosuka, Japan

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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:  Contaminated Soil Poses Hidden Lead Threat Inside Homes

Lead contamination in soil tracked inside homes can cause dangerous indoor lead dust levels even in residences with no interior lead-based paint, according to researchers with the Rutgers Environmental, Occupational and Health Sciences Institute in collaboration with community scientists: members of the general public who participate in data collection under the direction of scientists.

The study, published in the Journal of Exposure Science & Environmental Epidemiology, was conducted in the neighborhood of East Trenton, in Trenton, N.J., which the U.S. Environmental Protection Agency (EPA) added to the Superfund National Priorities List in 2025 after determining there was lead contamination in soil from 19th-century pottery manufacturing plants.

They found 86% of 242 bare surface soil samples collected exceeded the EPA’s 200 parts per million residential soil lead hazard level and nearly 94% exceeded screening levels for multiple sources of lead exposure. “This is especially concerning because all samples were collected from bare soil at the surface, which is the most likely to be accessed by children or tracked into homes,” said Sean Stratton, a recent Rutgers School of Public Health PhD graduate and lead author of the study.

Read More: Rutgers