The latest update to this website was at 825pm Wednesday (HST)

 

Here are the latest 24-hour precipitation totals (inches) for each of the islands as of Wednesday evening:

0.89  Puu Opae, Kauai
0.02  Waiawa, Oahu
0.01  Puu Alii, Molokai
0.01  Lanai City, Lanai
0.01  Ouu Kukui, Maui
0.18  Kapapala Ranch, Big Island

The following numbers represent the strongest wind gusts (mph) as of Wednesday evening:

10  Waimea Heights, Kauai
15  Oahu Forest NWR, Oahu
14  Keopukaloa, Molokai
09  Lanai 1, Lanai 
21  Na Kula, Maui
21  South Point, Big Island

 

Hawaii’s MountainsHere’s a link to the live webcams on the summit of our tallest mountain Mauna Kea (~13,800 feet high) on the Big Island of Hawaii, and atop the Haleakala Crater (~10,023 feet) 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

 Low northwest with it’s cold front near Kauai…thunderstorms well south 

 

https://www.weather.gov/images/hfo/satellite/Hawaii_IR_loop.gif

 Leading edge of a cold front near Kauai

 

 

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

Showers locally…especially around Kauai and the Big Island

 

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 here in upper Kula Maui as we’ve reached hump day of the week

It’s very clear here in Maui County early this morning…with a chilly low temperature of 49 degrees at my place.

1255pm, skies remain mostly sunny with just a few cumulus clouds gracing our island skies.

I played Pickleball down in Makawao this morning, it was crowded although I had enough fun.

The weather shifted lots today, as it stayed sunny all day with hardly a cloud in sight, in contrast to the last 3-afternoons when it showered lightly.

There’s a large near full moon coming up from the east, which is completely full tomorrow during the day.

826pm, it’s clear with a temperature that has dropped to a cool 52.8 degrees

Weather Wit of the day: I love those recorded forecasts. I just heard one that said “A hurricane is expected with winds of one hundred and forty miles per hour, tides six feet above normal and ten inches of rain! Have a nice day.”

>>> Highest Temperature Wednesday, December 3, 2025 – 89 near Rio Grande Village, Texas
>>> Lowest Temperature Wednesday, December 3, 2025 – minus 12 near Northgate, ND

 

Hawaii’s Broad Brush Weather Overview: As a dissipating front near Kauai drifts away from the state, southeasterly winds will become locally breezy on Thursday, and shower activity will become focused along east and southeast slopes of all islands. Trade winds will ease slightly and shift out of the east from Saturday into early next week, supporting a typical pattern of windward and mountain rainfall.

Hawaii’s Weather Details: A dissipating front stalled just west of the state is producing somewhat wet conditions on parts of Kauai and Niihau, while the rest of the island chain experiences one last day of light winds with stable and dry weather. Kauai lies under the eastern edge of a broad shield of low clouds marking the stalled front. There is little upper-level support for the feature, which is limiting shower activity on land to scattered light to moderate showers.

A few interior stations on Kauai collected around two thirds to three quarters of an inch during the past 12 hours, while most coastal stations have observed little rainfall. Across the rest of the island chain, mainly light southeasterly background winds continue to be overpowered by daytime sea breezes, and a ridge aloft is maintaining stable conditions with modest available moisture. As a result, little rainfall has been measured from Oahu to Big Island.

For tonight, the dissipating front and its associated moisture will slowly retreat westward, leading to a decrease in showers on Kauai and Niihau. A surface high far to the northeast will build, causing the southeasterly flow across most of the island chain to gradually strengthen. These winds may push a few showers onto eastern slopes of Maui and Big Island, while overnight land breezes should maintain mostly dry conditions elsewhere.

Southeast winds will strengthen on Thursday, pushing the deeper moisture away from Kauai. Winds could become locally breezy as shower activity along the old frontal band west of Kauai is enhanced by a trough aloft. This will help tighten the local pressure gradient and induce the surging southeast winds over the state. Conditions will remain stable, and typical moisture will produce showers over east and southeast slopes.

Moderate easterly trade winds and a typical pattern of mainly windward and mountain showers is expected Saturday through early next week. Pockets of moisture moving along the trade wind flow will periodically boost rainfall, but no significant moisture source is noted in the guidance. The GFS and ECMWF model predictions diverge by the middle of next week, though both suggest that trade winds could break down.

Fire weather: Critical fire weather conditions are not expected this week. Light winds will persist through the day, with increased rainfall probability on Kauai associated with an advancing frontal passage. Elsewhere across the state will remain dry and mostly stable. Moderate trades will be below the critical fire weather threshold Friday into early next week. The temperature inversion heights over Maui and the Big Island will range from 6,500 to 7,500 feet.

Here’s a near real-time Wind Profile of the Pacific Ocean – along with a Closer View of the islands / Vog map animation / 8-Day Precipitation model

https://www.weather.gov/images/hfo/graphics/npac.gif 

 

Hawaii’s Marine Environment: A cold front approaching from the northwest is expected to stall west of Kauai, before weakening to a trough Thursday and retrograding back to the west. Thursday through this weekend, a ridge of high pressure is expected to strengthen northeast of the region, which will allow moderate to locally strong easterly trades.

As trades increase, a Small Craft Advisory (SCA) will likely be needed for the typical windier zones surrounding Maui and the Big Island. A moderate to large NW swell could also bring seas to SCA criteria Thursday night into Friday. So at this time, a SCA for winds to 25 knots and higher seas look likely by Thursday afternoon.

The current moderate, medium period northwest swell (310-330) has been holding at the nearshore buoys. Meanwhile the next swell (310-330) reached Buoy 51101 to the northwest of the islands. This swell is expected to reach Kauai and then Oahu a little later. This is the first in a series of northwest to north-northwest (310-340) swells that are expected over the coming days. This swell will be reinforced by another on Thursday that should bring surf to advisory levels Thursday into Friday. Another slightly larger northwest swell is expected to arrive on Friday, which will maintain the elevated surf.

East shore surf will remain small due to weak winds, then become choppier by Thursday as trade winds increase Thursday through the weekend. Expect minimal background energy for south facing shores through much of the week.

There is the potential for minor coastal flooding from December 4th to December 6th. Peak monthly tides combined with water levels that are running higher than predicted, could lead to minor flooding along the shoreline and in low-lying coastal areas. Coastal flooding is possible around the daily peak tide, which will be during the early morning hours. This could also magnify effects of the expected high surf on coastal areas around the same time frame.



World-wide Tropical Cyclone Activity

 

Atlantic Ocean:  There are no active tropical cyclones

Caribbean Sea:  There are no active tropical cyclones

Gulf of America:  There are no active tropical cyclones

 

Northeastern Pacific:  There are no active tropical cyclones

North Central Pacific: There are no active tropical cyclones

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

 

Northwest Pacific Ocean:  There are no active tropical cyclones

Southwest Pacific Ocean:  There are no active tropical cyclones

North and South Indian Ocean:  There are no active tropical cyclones

South Indian Ocean: There are no active tropical cyclones

Arabian Sea: There are no active tropical cyclones

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

 

>>> Here’s a link to the Pacific Disaster Center’s (PDC Global) Weather Wall website

 

Interesting:  Student Expands Research on Microplastics in Hawaiian Waters

After graduating from Kalaheo High School, Hope Kanoa knew she wanted to focus on Hawaii’s water resources while attending the University of Hawaii at M?noa. She found a fitting option in the School of Ocean and Earth Science and Technology (SOEST), which offers a Bachelor of Arts in Environmental Earth Science.

As an undergraduate student, Kanoa conducted a research project with Xiaolong (Leo) Geng, assistant professor in the SOEST Department of Earth Sciences, to measure the concentration of microplastic in coastal environments around Oahu. After working on this project together, Geng extended an invitation for Kanoa to join his research group as a master’s student.

“Its incredible to see how connected different reservoirs of water are in Hawaii,” Kanoa said. “I’m very interested in addressing the challenge of modeling how this contaminant is transported on and in our islands.”

“Hope has demonstrated an exceptional ability to work across disciplines, connecting fieldwork, laboratory analysis, and environmental science outreach,” Geng shared. “She is never afraid to try new approaches, and her willingness to step outside her comfort zone has been a defining strength in her growth as a researcher.”

Read More: University of Hawaii

Image: Kanoa doing field work on Maui with colleagues.