The latest update to this website was at 752pm Saturday (HST)

 

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

0.07  Mount Waialeale, Kauai
0.07  Poamoho RG 1, Oahu
0.04  Puu Alii, Molokai
0.00  Lanai
0.05  West Wailuaiki, Maui
1.59  Kawainui Stream, Big Island

 

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

20  Port Allen, Kauai
27  Oahu Forest NWR, Oahu
24  Makapulapai, Molokai
27  Lanai 1, Lanai 
28  Kealaloloa Rg, Maui
32  Puuloa, 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

Thunderstorms far southwest…cold front northwest

 

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

 Variable clouds over the islands…higher clouds clipping the Big Island

 

 

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, with another friend Bob Earle from Bend, Oregon.

It’s clear to partly cloudy with a low temperature of 44.4 degrees.

It turned cloudy here in northern California, although most of them are in the middle layers of the atmosphere and no rain is falling. We drove over to take a walk out to the ocean through the Tennessee Valley, although there were tons, and I mean tons of people and cars…so we skipped it.

It’s a little windy at times and it’s lightly raining just before I go to bed here in CA.

Weather Wit of the day: This sign was seen at a Federal Loan Office in a flood disaster area – “LOANS MADE WHILE YOU WADE.”

Interesting web story – Mauka Showers…Our First Cold Front-Drought Buster?

>>> Highest Temperature Saturday, November 15, 2025 – 96 near Rio Grande Village, Texas
>>> Lowest Temperature Saturday, November 15, 2025 – 9 at Mount Washington, NH

 

Hawaii’s Broad Brush Weather Overview:  High pressure to the northeast will move to the east over the coming days, and moderate trades will weaken. Increased shower activity is expected Monday through Wednesday as a front approaches from the northwest, and an upper level trough develops near the islands.

Hawaii’s Weather Details: High pressure to the northeast will maintain a trade wind flow through the remainder of the weekend. A front far to the northwest will continue to move to the east, pushing the high to the east. This will in general weaken the trade winds for the start of the week, with the winds turning a bit south of east. The ECMWF model keeps the front to the northwest of the islands, while the GFS would usher it closer to the islands Tuesday. Both models develop an upper level low over the western islands Monday, which merges with the upper level trough, associated with the approaching front to the northwest Tuesday night.

On the east side of the upper level low, winds will draw moisture towards the islands, with most of that moisture focused over the Big Island. The colder temperatures aloft will then bring the possibility for some wintry weather for the Big Island summits. This isn’t an organized frontal system moving over the Big Island, so not expecting a significant winter event, but certainly can’t rule out some snow showers.

The upper level low will bring colder temperatures to the islands Monday afternoon through Tuesday night. While this is on the colder side of normal for this time of year, its generally within 1 standard deviation. Additionally, the precipitable water values remain near normal. This would suggest not all parameters are lining up for the development of thunderstorms.

While winds are weakening Monday, believe there will be enough of a trade wind component to inhibit thunderstorm development, but that could change as we head into Tuesday, with winds weakening a bit more. That being said, at that time the question will remain as to whether or not the cold temperatures and precipitable water will line up.

The second half of the week will have whatever remains of the front moving to the east, and a new upper level low that develops along the frontal upper level trough moving to the west. A new high building in behind the front will bring returning trades to the region, which will carry some of the residual showers from the front into the islands.

Fire weather:  Recent island wide rain and more overcast skies, along with relatively higher minimum afternoon humidities under light winds, will all help maintain a lower fire weather threat. The potential exists for a wet weather pattern through most of next week. The lower inversion height slopes from near 4,000 feet over the western islands, to around 9,000 feet on Big Island.

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:  Moderate to locally strong easterly trade winds will persist, and gradually weaken as high pressure to the northeast slowly drifts southeast and weakens. A Small Craft Advisory (SCA) has been trimmed back to the typical windy waters and channels around Maui County and the Big Island. Guidance for early next week remains uncertain, with the potential for an upper level trough forming southeast of the coastal waters Monday and moving northwest over the islands.

The moderate trade winds may veer to the east-southeast and slowly weaken through Tuesday. Additionally, a front looks to move into the offshore waters by Tuesday afternoon, bringing locally strong east-northeast winds behind the front, before weakening over the coastal waters mid-week. There is a potential for isolated to scattered thunderstorms over the marine waters Monday through Wednesday.

Surf along north facing shores will remain small before a small to moderate, medium to long period northwest swell looks to fill in that will keep surf elevated through the weekend. A moderate long period northwest swell is expected to arrive late Tuesday, and peak Wednesday near High Surf Advisory (HSA) levels, before declining by the end of next week.

Surf along east facing shores will continue to decline through the weekend, due to the weakening of the local and upstream trade winds. Large choppy short period surf for north and exposed east shores is possible by the middle of next week depending on the evolution of the potential trough and approaching cold front mentioned above. For south shores, tiny background southerly swell will remain through the forecast period.



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: 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:  In a Death Valley Shrub, Scientists See a Blueprint for Heat-Proof Crops

In the searing heat of Death Valley, California, a small desert shrub, Tidestromia oblongifolia, is able to thrive in temperatures upwards of 120 degrees F. A new study reveals how the plant can endure in such harsh conditions, findings that could prove useful in engineering crops to endure more extreme heat.

For the study, scientists recreated the withering heat and intense sunlight of Death Valley summers in the lab, subjecting the seeds of T. oblongifolia and other plants to the brutal conditions. They found that while other desert plants stopped growing, T. oblongifolia actually grew faster, tripling its mass in just 10 days.

“When we first brought these seeds back to the lab, we were fighting just to get them to grow,” said Karine Prado of Michigan State University. “But once we managed to mimic Death Valley conditions in our growth chambers, they took off.”

Read More: Yale Environment 360

T. oblongifolia growing in Death Valley.