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

 

The latest update to this website was at 110pm Monday afternoon HST


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

0.66  N Wailua Ditch, Kauai
0.15  Punaluu Stream, Oahu
0.01  Puu Alii, Molokai
0.00  Lanai
0.08  Puu Kukui, Maui
0.73  Honaunau, Big Island


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

32  Port Allen, Kauai – ENE
32  Oahu Forest NWR, Oahu – ENE 
35  Makpulapai, Molokai – ESE
39  Na Kula, Maui – ENE
28  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.


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

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


https://cdn.star.nesdis.noaa.gov/GOES18/ABI/SECTOR/hi/GEOCOLOR/20262711340-20262712120-GOES18-ABI-HI-GEOCOLOR-600x600.gif

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

911am, it’s just about as cloudless as it ever gets here in Maui County!

 

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 afternoon: Breezy east-southeast winds with a drier airmass will limit clouds and showers through today. Clouds and showers will increase Tuesday through Thursday, as Nolo passes to the west, with rain bands along the south and east side of the storm…encroaching Kauai and Oahu. Nolo moves away to the northwest by the weekend with trades filling in.

Weather Narrative…as of Monday afternoon: A band of showery cumulus clouds is running nearly parallel and just north of the island chain. A few of these showers may impact windward Kauai and Oahu through the day, but conditions elsewhere should remain dry.

Major Hurricane Nolo is around 420 miles southwest of Honolulu, and has made it`s turn to the northwest. Main impacts in the short-term will be the breezy, but weakening winds across the state, due to the pressure difference between Nolo and the subtropical high far to the northeast, and the southwest swell directed towards the islands.

Nolo will weaken down to a Category 1 hurricane and stall around 250 to 300 miles west of Kauai Tuesday night and Wednesday, then continue on a more west-northwesterly track away from the state through the second half of the week. Winds will remain brisk and gradually veer southeasterly as Nolo gains latitude, then continue out of the southeast through the end of the week.

Rain bands along Nolo`s eastern flank will spread out enough to likely bring an increase in rainfall across Kauai and Oahu, as the southeasterly flow directs showers over populated areas of both islands. Guidance shows varying amounts and lengths of time that the bands will impact the western end of the state, and will ultimately depend on Nolo`s eventual path over the next few days.

By this weekend, trade winds are forecast to build in bringing drier and more stable conditions again.

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.

 

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 Monday afternoon: 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 around 230 nautical miles west of 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 a 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. Som

 

>>> 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).

cone graphic

 

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).

cone graphic

 

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).

https://www.nhc.noaa.gov/storm_graphics/EP17/EP172026_5day_cone.png

 

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).

cone graphic

 

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.

cone graphic

 

>>> 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

https://www.metoc.navy.mil/jtwc/products/wp2526.gif

 

Southwest Pacific Ocean: There are no active tropical cyclones

 

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

 

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

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