The latest update to this website was at 430pm Friday (HST)

 

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

0.08  Mount Waialeale, Kauai
0.82  Poamoho RG 1, Oahu
0.10  Puu Alii, Molokai
0.00  Lanai City, Lanai
0.13  Baseyard EMI, Maui
0.31  Honolii Stream, Big Island

The following numbers represent the strongest wind gusts (mph) as of Friday afternoon:

16  Port Allen – E
23  Kii, Oahu – ENE
28  Makapulapai, Molokai – E
18  Lanai 1, Lanai – NE 
39  Na Kula, Maui – SE
35  South Point, Big Island – ENE

 

Hawaii’s Mountains – Here’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

An upper level low with a cold front northwest 

 

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

Higher level clouds moving by to the north

 

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 

 

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

 

~~~ Hawaii Weather Narrative ~~~

 

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

It’s mostly clear with a few clouds here in Maui County early this morning, with a very chilly low temperature of 48 degrees at my place, with the relative humidity 74 percent.

407pm, cloudy here in upper Kula, with a temperature of 67.2 degrees, and with a RH of 65%

Weather Wit of the day: Weatherman’s Greeting – “Good morning, possibly”

>>> Highest Temperature Thursday, December 25, 2025 – 88 near Dunlap, TX
>>> Lowest Temperature Friday, December 26, 2025 – minus 17 at Saranac Lake, NY

Interesting Hawaii Web blog: Latest Totals from the Soggy Week of December 14 – 20, 2025

 

Hawaii’s Broad Brush Weather Overview: Trade winds are expected to decrease tonight as they veer to a more southeasterly direction. A relatively dry and stable air mass will continue to support light showers focused over windward and mountain areas through the middle of next week.

Late this weekend, a cold front will move towards the islands from the northwest, stalling before it reaches the islands. By mid-week, a mid-level trough near the islands could help to enhance showers, as trades begin to spread across the area again.

Hawaii’s Weather Details: High pressure far northeast of the islands, with its associated ridge to the north of the islands, will continue to move to the east, as a cold front to the northwest of the islands moves east. This in turn will veer the winds near the islands to a more southeasterly direction as winds weaken. Mid level ridging over the islands is helping to limit shower activity for the time being.

This cold front is expected to move to the east and approach Kauai, but is expected to stall just before reaching the coastal waters to the northwest of Kauai Sunday night into early Monday. Monday and Tuesday will see the front shift back to the west. At its closet approach, the front and any pre-frontal convergence bands, could bring an increase in shower activity for Kauai.

Trade winds are expected to build back in Tuesday and Wednesday as a new high pressure system moves in north of the islands. The front mentioned above will have moved to the northeast of the islands by then, and some of the moisture from the front will then be carried in on the trade wind flow. The mid-level ridging will be replaced by a mid-level trough on Wednesday, and that could help to enhance shower activity.

The GFS model indicates more instability near the islands than the ECMWF, however both global models suggest a brief period of time when there could be an enhancement to the showers. One piece that the mid-level trough will need to contend with, are the strengthening trade winds at that time. We will need to continue to monitor future model runs to determine how much of an impact the mid-level feature will have on our local weather.

At this time, there is good agreement in the models that we will have moderate trade winds New Year’s Eve and New Years Day, with a bit of a further increase the day after.

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 low pressure system far north of the islands will drive a trailing shallow cold front into the northwestern offshore waters, where it will stall west of Kauai this weekend. This approaching front will push the surface ridge over the Hawaii area producing gentle to moderate easterly to southeasterly winds across the state through Monday. Easterly trade winds will strengthen again into the moderate to fresh range from next Tuesday to Wednesday, as a high pressure system builds in from the north. The Small Craft Advisory remains in effect for windier waters and channels surrounding Maui and the Big Island.

The current moderate, medium period, north-northeast (010-030 degrees) swell will hold. This swell continues to boost surf heights along north facing shores. This swell will decline rapidly from midnight tonight into Saturday. A Marine Weather Statement was extended in time for moderate harbor surges at Kahului and Hilo. A combination of the declining north-northeast swell and a small, long period west- northwest swell will keep smaller surf in the forecast this weekend. The next large medium to long period north-northwest (330-350 degree) swell is expected to arrive in the islands by early Monday morning, peaking at solid High Surf Advisory levels along north and west facing shores from Monday night through Wednesday morning.

Small rough and choppy surf along east facing shores will gradually decline as trade winds ease this weekend. Surf along south facing shores will remain very small through the week.

 

Maui: The Pacific Island Where the Beaches Come in Almost Every Color



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:

Tropical Cyclone 09S (Grant)…is located approximately 400 NM west of the Cocos Islands

https://www.metoc.navy.mil/jtwc/products/sh0926.gif

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: Researchers Tackle AI’s Energy Problem With a Greener Fix

Artificial intelligence is getting more powerful – but it’s also racking up a massive energy bill. Some estimate that one maximum-length ChatGPT query can use about twice as much power as an average U.S. home does in one minute. Multiply that by billions of queries and the enormous training AI models require, and the energy impact is staggering.

As researchers are racing to find greener ways to power AI, a new study led by Tianyi Chen, associate professor of electrical and computer engineering at Cornell Tech, with collaborators from IBM and Rensselaer Polytechnic Institute, explores a promising solution: analog in-memory computing (AIMC), utilizing analog chips.

Unlike traditional architectures, which constantly move data back and forth between memory and processors, AIMC stores and processes data in a single location. “This leverages physics to perform the math calculation instantly without moving the data, potentially slashing power consumption by 1,000 times and making the next generation of AI sustainable,” said Chen, who is also associate professor at Cornell Engineering.

Read more at: Cornell University