The latest update to this website was at 725pm Saturday (HST)

 

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

0.57  Mount Waialeale, Kauai
0.20  Poamoho RG, Oahu
0.04  Puu Alii, Molokai
0.08  Lanai City, Lanai
0.05  West Wailuaiki, Maui
0.37  Hilo AP, Big Island

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

27  Port Allen, Kauai
25  Oahu Forest NWR, Oahu
28  Molokai AP, Molokai
25  Lanai 1, Lanai 
35  Na Kula, Maui
24  Kona AP, Big Island

 

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

Cold front northwest…thunderstorms south 

 

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

 Variable low clouds over the islands…higher clouds moving over us from the west

 

 

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 Saturday comments:  I’m here in Corte Madera (Marin County, CA) at my friend Linda’s place

It’s clear early this morning…with a very chilly low temperature of 35 degrees.

Yet another beautifully sunny day here in Marin, with very light winds. I was able to wash my clothes and hang them out on the line this afternoon…and they dried.

Weather Wit of the day: Aviation Forecast – “The rain falls mainly on the plane”

Interesting web blog: Mauka Showers…Collecting Rainfall Data – The Old School Way

>>> Highest Temperature Saturday, November 22, 2025 – 93 at La Puerta, Texas
>>> Lowest Temperature Saturday, November 22, 2025 – 2 at Peter Sinks, Utah

 

Hawaii’s Broad Brush Weather Overview: Moderate trade winds will persist through the rest of the weekend and into the first half of the new week. Showers will remain focused primarily over windward and mountain areas. An upper-level trough will move nearby on Sunday, which could briefly enhance shower coverage. Shower chances will then decrease through the first half of the week, before potentially increasing again near the Thanksgiving holiday.

Hawaii’s Weather Details: Locally breezy easterly trade winds that have prevailed over the past couple of days will decrease in intensity to moderate speeds, then persist at moderate speeds through the first half of the new week, as a broad area of high pressure far northeast of the state slightly weakens and drifts eastward. Meanwhile, latest satellite and radar imagery shows that most low clouds and showers are favoring windward areas, in addition to the typical afternoon cloud buildups and showers along the Kona slopes of the Big Island. Notably, however, the slightly east-southeast flow has resulted in some showers spilling into traditionally leeward locations at times, such as portions of Honolulu.

Latest model guidance shows a quick moving upper-level trough passing over the islands late tonight through Sunday. This will serve to briefly introduce instability into the region, though is not expected to have a significant impact on weather across the islands. With that said, it could trigger a few afternoon showers on Sunday across some leeward and interior areas, as well as increase cloud coverage throughout the day.

Following this upper-level trough, weak ridging will build back into the area, maintaining moderate trades through much of the upcoming week. Showers will generally favor windward and mountain sections of the islands throughout this time, though pockets of drier air will move into the area throughout the week, creating small day-to- day variations in windward and mountain shower coverage.

Later in the week, model guidance shows another upper-level trough making its way across the state, though there remain significant timing differences (for example, the ECMWF offers an earlier, quicker solution than the latest GFS). Initial indications are that impacts will be limited with this upper trough as well, though confidence remains low at this time.

Fire weather:  Critical fire weather conditions are not expected through the forecast period. Relative humidity levels decrease throughout the period, however, wind speeds remain below critical fire weather thresholds. Temperature inversion heights range from 6,000 to 7,000 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: High pressure far to the northeast will weaken this weekend as a front also weakens north of the local waters. Fresh to locally strong trade winds will persist before gradually easing going forward. A new high pressure building in north of the waters Sunday will continue to move east, and keep trade winds in the gentle to moderate range Sunday into next week. Another front moving across the north Pacific next week will push a ridge near the islands and keep the gentle to moderate trade winds through the forecast period.

The current northwest swell will maintain surf at moderate levels along north and west facing shores. A new northwest swell is expected to build in and peak tonight into Sunday, then decline through early next week. A potentially larger northwest swell is expected around the middle of next week.

As trade winds slowly weaken, choppy surf along east facing shores will decline into early next week. Surf looks to remain tiny to small through the forecast period with tiny background southerly energy.



World-wide Tropical Cyclone Activity

 

Atlantic Ocean:  There are no active tropical cyclones

Tropical cyclone formation is not expected during the next 7-days.

Caribbean Sea:  There are no active tropical cyclones

Tropical cyclone formation is not expected during the next 7-days.

Gulf of America:  There are no active tropical cyclones

Tropical cyclone formation is not expected during the next 7-days.

 

Northeastern Pacific:  There are no active tropical cyclones

Tropical cyclone formation is not expected during the next 7 days.

North Central Pacific: There are no active tropical cyclones

Tropical cyclone formation is not expected during the next 7 days.

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 05S (Fina)…is located 73 NM west-southwest of Darwin, Australia

https://www.metoc.navy.mil/jtwc/products/sh0526.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: This UW-Madison Spinoff is Making Environmentally-Friendly Cement. The Secret Ingredient is Pollution

Taken individually, coal ash and excess carbon dioxide are harmful pollutants. Combined in just the right way, they form a durable, inexpensive, and environmentally friendly building material.

University of Wisconsin–Madison spinoff Alithic is leveraging this unique formula to turn waste streams from liabilities into profits, producing a key ingredient of concrete, the most abundant manufactured product in the world.

Based on a discovery by engineering professor Bu Wang, Alithic uses chemical reactions to pull carbon dioxide from the air and mix it with industrial wastes like coal ash, generating a mineral product — known as supplementary cementitious material, or SCM — that can be substituted for traditional Portland cement, one of the largest sources of greenhouse gas emissions.

Read more at: University of Wisconsin–Madison