The latest update to this website was at 441pm 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 northwest 

 

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…not many

 

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 at Christmas time.

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

>>> Highest Temperature Thursday, December 25, 2025 – 88 near Dunlap, 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: Today will likely be the last day of trade winds, as winds become southeast Friday. A relatively dry and stable air mass will continue to support only light showers focused over the windward and mountains through the middle of next week.

A weak cold front and upper level trough will bring increased moisture and a slight increase in instability early next week, keeping the chance of showers going. These showers will still be mainly windward and mountain areas. Trades are expected to return in the middle of next week.

Hawaii’s Weather Details: Skies were partly cloudy across the state at the time of this writing. Light showers were noted on radar, in the usual places when the trade winds are blowing. The exception was in the Kona region of the Big Island, where afternoon cumulus buildups have developed into isolated showers.

The atmosphere is relatively dry at low levels, and stable as well. Trade winds continue to blow, but should turn and come out of the southeast Friday. These southeast winds are forecast to last into Wednesday of next week…and unfortunately we’ll likely have off and on bouts of volcanic haze (vog) in our overlying atmosphere.

A ridge of high pressure at the surfaces stretches from southwest to north-northeast of the state. And this ridge extends vertically as well, with the upper level ridge axis running pretty much due north. Surrounding this upper level ridge is a pair of troughs.

The one to our northeast is associated with the flooding and severe storms along the west coast of the mainland. The one to our northwest will weaken as it approaches, pushing a weak cold front toward Kauai County Saturday night and Sunday. This front will then stall near but most likely just west of the state, before slowly retreating westward Monday. Depending on exactly how far east the front makes it, Kauai County could see a noticeable increase in showers.

The upper trough associated with this front will weaken and remain nearly stationary through next Wednesday. This will bring slightly cooler temperatures aloft, help to increase low level moisture due to persistent southeast flow, and therefore help to slightly destabilize the atmosphere.

Precipitable water values increase slowly through next Tuesday before dropping back down Wednesday into Thursday, but remain below normal throughout this process. Therefore, showers will continue to be in those favored mountain and windward areas, with an additional increase on southeast-facing shores that may not be traditionally considered windward.

Weak high pressure ridging aloft over the island chain is expected to move in over us by late next Wednesday and Thursday, and this will help strengthen a surface ridge to the north and likely bring back east to northeast trade winds.

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 206 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: 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.