The latest update to this website was at 112pm Thursday (HST)

 

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

0.24  Mount Waialeale, Kauai
0.01  Kaala, Oahu
0.01  Kamalo, Molokai
0.00  Lanai City, Lanai
0.03  Puu Kukui, Maui
0.33  Kaiholena, Big Island

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

23  Lawai – E
22  Oahu Forest NWR, Oahu – SE
30  Makapulapai, Molokai – E
27  Lanai 1, Lanai – NE 
43  Na Kula, Maui – ESE
33  Lalamilo, Big Island – NE

 

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 arriving from 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…very few 

 

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

 

~~~ Hawaii Weather Narrative ~~~

 

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

It’s mostly clear here in Maui County early this morning, with a very chilly low temperature of 46 degrees at my place, with the relative humidity 75 percent.

114pm, it’s about as nice as it could be here on Maui, in terms of the weather…although personally I prefer it to be more wintery on Christmas

Weather Wit of the day: Winter Travelers Advisory – “Your slip is showing”

>>> Highest Temperature Wednesday, December 24, 2025 – 88 at Canadian, TX
>>> Lowest Temperature Thursday, December 25, 2025 – minus 3 at Houlton, ME

Christmas Day: Date, History And Original Meaning - Calendarr

 

Hawaii’s Broad Brush Weather Overview: An elongated area of high pressure north of the Hawaiian Islands will maintain stable trades through Friday, then decrease slightly over the weekend. Shower activity will be limited through Sunday, with the main focus along windward and mountain areas.

A front will approach with an upper-level disturbance thereafter, stalling just northwest of the islands and may bring an increase of showers and clouds to Kauai during the early part of next week. A slow moving disturbance aloft will produce a greater chance of heavy showers during the middle of next week as the trades rebuild.

Hawaii’s Weather Details: An elongated area of high pressure north of the Hawaiian Islands remains between two flanking areas of low pressure along the U.S. west coast and along the International Dateline, will maintain stable and locally breezy trades through the remainder of the week. This stability is well depicted in the latest upper-air balloon soundings launched from Lihue and Hilo, showing an inversion across the state between 5,000 and 6,000 feet. As a result, many areas across the state remained relatively dry during the overnight period, with little to no precipitation recorded in the last 24 hours.

Trades will begin to decrease in strength ever-so-slightly over the next couple of days, as the aforementioned high meanders eastward. Ridging aloft will continue to maintain stability, which lines up really well with the latest model guidance, suggesting dry conditions will prevail across the islands, with the exception of typical windward and mountain showers in association with the trades. Overall, not much change is expected through Friday.

As the weekend approaches, trades will ultimately diminish, with remaining winds veering to the southeast. The ridging aloft will also start to erode away, reintroducing some sense of instability to the islands. Latest model guidance depicts the area of low pressure, originally along the Dateline to our west, will shift northeastward in the wake of the area of high pressure.

As the low continues toward the Gulf of Alaska, it will send a cold front into the vicinity of the islands. Models currently differ on the timing and position of the front, with the European model (ECWMF) stalling the front well off of Kauai. Conversely, the American model (GFS) portrays the front stalling over Kauai, supporting a high chance of shower activity to the Garden Isle through early next week. Meanwhile, the remainder of the Hawaiian Islands should remain mostly dry with the exception of some daytime breezes producing spotty interior showers during the afternoon hours.

The remainder of the outlook period is full of uncertainty. Model guidance has been depicting a strong, zonal jet stream in the western Pacific amplifying an upper-level trough, as well as the subtropical jet stream over the state. Guidance displays this trough slowly moving over the state by mid-week next week at differing magnitudes of strength, leaving quite a bit of uncertainty in the forecast.

On one hand, this may result in increased instability and heavy rainfall potential, while on the other hand, some models hint at a surface high pressure system redeveloping north of the state, suggesting the trades reestablishing. However, at this time, the uncertain pattern favors unstable and wet trade winds, with greatest emphasis of heavier rainfall over windward and mountain areas. That said, further analysis will be needed to refine the most likely solution given the low confidence.

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 high pressure system north of the islands will continue to build a surface ridge over the Hawaii region . Expect moderate to fresh trade winds blowing across Hawaiian waters through tonight, then decreasing wind speeds veering from a more southeasterly direction Friday into the weekend.

A low northwest of the islands will drive a weak cold front into the northwest offshore waters this weekend. Wind speeds will decrease and veer from a more southeasterly direction during this time period. Gentle to moderate trade winds return next week, in an unsettled weather pattern due to a passing upper level disturbance.

A Small Craft Advisory (SCA) remains in place for the windier waters and channels around Maui County and the Big Island through tonight. Wind speeds will fall below advisory thresholds on Friday, and the SCA will likely be cancelled before sunrise Friday.

A moderate, medium period north-northeast (010-030 degrees) swell continues to boost surf heights along north facing shores. This swell will peak just below High Surf Advisory levels, before declining on Friday. A Marine Weather Statement remains in place 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. West facing shores will see a tiny, moderate period west swell holding. The next large, long period northwest swell is expected over the first half of next week.

Rough and choppy surf along east facing shores will gradually decline as trade winds ease over the next few days. Some wrap around energy from the medium period, north-northeast swell will create choppy rough surf conditions along east sides of all islands. Surf along south facing shores will remain very small through the week.

 

Beautiful Pictures Of Hawaii To Brighten Dark Rooms



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 30 NM northwest 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: Spray-on Antibacterial Coating Offers New Protection for Plants Against Disease and Drought

Engineers at the University of California San Diego have developed a spray-on polymer coating that could help plants resist harmful bacterial infections and survive drought. The advance, published in ACS Materials Letters, could help strengthen global food security as increased environmental stresses continue to intensify plant disease pressures.

Bacterial infections are a growing threat to agriculture as they contribute to major crop losses worldwide. These infections, which are driven by both Gram-negative and Gram-positive bacteria, cause destructive plant diseases such as wilt, blight, speck and canker. Rising temperatures are also allowing pathogens to expand into new regions. As a result, crops are increasingly exposed to a variety of infections.

To tackle this challenge, researchers from the labs of Jon Pokorski and Nicole Steinmetz, both professors in the Aiiso Yufeng Li Family Department of Chemical and Nano Engineering at the UC San Diego Jacobs School of Engineering, and members of the UC San Diego Materials Research Science and Engineering Center (MRSEC), joined forces to develop an antibacterial coating that can be sprayed directly onto plant leaves.

Read More at: University of California San Diego

Luis Palomino, a chemical and nano engineering Ph.D. candidate at the UC San Diego Jacobs School of Engineering and co-first author of the study, sprays an antibacterial polymer coating onto the leaves of Nicotiana benthamiana.