Glenn James

Hawaii Weather Today
Creator, Author, and Administrator for over 30 years 

 

The latest update to this website was 756                                                                                                                                                                                                                                                                                                                                                                          pm Wednesday evening HST


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

0.20  Kilohana, Kauai
0.05  Lyon, Oahu
0.59  Puu Alii, Molokai
0.00  Lanai
0.93  Puu Kukui, Maui
1.36  Kawainui Stream, Big Island


The following numbers represent the strongest wind gusts (mph) Wednesday evening:

30  Port Allen, Kauai – ESE
33  Kuaokala, Oahu – ENE
33  Makapulapai, Molokai – ENE
37  Lanai 1, Lanai – NE
42  Kealia Pond, Maui – NE
58  Puuloa, Big Island – NNW 


Hawaii’s Mountains – Here’s a link to the live webcam on the summit of our tallest mountain Mauna Kea (~13,800 feet high) on the Big Island of Hawaii. Here’s the webcam for the (~10,023 feet high) Haleakala Crater 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

 Tropical Storm Pena moving away southwest…with a cold front north 

 

https://cdn.star.nesdis.noaa.gov/GOES18/ABI/SECTOR/hi/14/GOES18-HI-14-600x600.gif

Variable low clouds over and around Hawaii…high clouds locally too 

 

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

Localized Showers 

 

https://www.weather.gov/wwamap/png/hfo.png

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




~~~
Hawaii Weather Narrative
~~~

 

Glenn’s Wednesday comments:  I’m with my friend Bob here at our vacation rental at Sea Ranch, Sonoma County, CA on a working vacation.

439am HST, it’s clear here at Sea Ranch with low clouds just offshore, the low temperature was 44.5 degrees…with a chilly breeze

403 HST, yet another perfectly sunny day here on the north coast of Sonoma County. Bob and I sat outside until the stars started to appear…after watching the sunset with a glass of wine in hand.

605pm, I so much enjoyed the pickleball games at Sea Ranch this morning, I make new friends every time I go to the courts.

Two nights ago a racoon opened one of the screen doors in Bob’s room, and came in and ate our two remaining perfectly ripe avocado’s, and ransacked through a full bag of trash we were going to empty! We could see his paw prints on the floor, and it wasn’t a small animal, it looked more like a grizzly bear paw prints…well, maybe not that big. However, it’s intimidating to have a wild animal invade your private dwelling space!

 

Hawaii’s Weather Highlights…as of Wednesday evening:  Strong and gusty trade winds are expected into Thursday, as high pressure builds south toward the state. Windward and mauka shower chances increase later tonight and Thursday, as a band of moisture accompanying a decaying frontal boundary moves from north to south across the state. Moderate to locally breezy trades return Friday.

Weather Narrative…as of Wednesday evening: A high building far north of the state has strengthened the trade winds today. Gusts have not been overly impressive nor persistent, but peak gusts of 45 to 50 mph have been measured in the typical windy areas around Maui County and the Big Island. The Wind Advisory remains in place until 6am Thursday with the potential for a further increase. Winds will be strongest through gaps and over and downslope of ridges, where gusts of 50 to 55 mph are possible. The combination of strong trade winds and dry conditions has elevated fire weather concerns.

A weakening frontal boundary will bring somewhat deeper moisture south through the islands tonight into Thursday. Increased shower coverage is expected over mostly windward and mauka areas, although a few may make it into leeward areas here and there. The strong trade winds should begin to ease some Friday down to breezy to locally strong speeds.

Another high pressure ridge will slide east well to the north of the state this weekend. Some increase in the trades is possible again Saturday night and Sunday, before the high stalls to our northeast early next week. A reduced pressure gradient should allow trades to relax some by that time. Brief pulses of better moisture in the trades will keep typical trade wind showers over windward and mauka areas, mostly during the overnight and early morning hours through the period.

Fire Weather: With the gusty trades under a dry air mass, winds and humidity will likely reach critical thresholds through Thursday. However, fuel conditions remain below critical thresholds, due to the above average rainfall over the past few months. Due to the fuels, Red Flag Warnings are not expected at this time. Winds should ease slightly with a modest increase of humidities on Friday. Temperature inversion heights will remain between 5,000 and 6,500 feet across the state. The strong low level inversion will make winds gusty especially during the afternoons and evenings, downwind of terrain over the next several days.

 

https://www.weather.gov/images/hfo/graphics/npac.gif


Here’s a near real-time Wind Profile of the Pacific Ocean – along with a Closer View of the islands / Here’s the latest Weather Map / Looping Surface Precipitation…through the next 8-days / Vog Map

 

Marine Conditions…as of Wednesday evening: Strong high pressure north of Hawaii will maintain fresh to locally gale force winds across the marine areas. A Gale warning is in effect for the windier waters and channels around Maui County and the Big Island. Guidance may allow for a Gale warning extension through Thursday, or to bring it down to a Small Craft Advisory. The current Small Craft Advisory (SCA) has been extended for all other coastal water zones through Thursday.

A front will drop south from the northern offshore waters to reach the central waters as it weakens tonight. This disturbance will bring increased shower activity to the area through Thursday. Through the weekend, the trade winds will trend down slightly to fresh to locally strong speeds across all waters.

Buoy 51201 near Waimea Bay is observing long period forerunners as the new swell begun to rise on north and west facing shores. This large long period north-northwest swell (340 deg) will peak late tonight into early Thursday morning before declining through Friday. A High Surf Advisory (HSA) is in effect for north facing shores of Kauai, Oahu and Molokai and Maui and west facing shores of Kauai and Oahu through Thursday afternoon. Seas are also forecast to exceed high seas late tonight into Thursday, so the Small Craft Advisory also includes large seas. Surf will decrease Friday followed by a north swell this weekend, which could push surf back to advisory levels on Sunday.

Surf along east facing shores will remain rough and choppy due to the strong trade winds through Friday, then may diminish slightly this weekend. A small, long-period south swell may bring a small rise to south shore surf into Thursday. Surf becomes tiny again Friday into the weekend for south- facing shores.

 

>>> Highest Temperature Wednesday, November 11, 2026 – 91 degrees at Lake Elsinore, CA


>>>
Lowest Temperature Wednesday, November 11, 2026 – 9 degrees at Grand Lake, CO

 

Hawaii Wind Patterns Explained: Trade Winds & Kona Winds - Hawaii Real Estate Market & Trends | Hawaii Life


World-wide Tropical Cyclone Activity

 



>>>
Here’s a link to the latest Pacific Disaster Center’s
Weather Wall



Atlantic Ocean:
There are no active tropical cyclone

Caribbean Sea: There are no active tropical cyclones:

Gulf of America: There are no active tropical cyclones

 

Northeast Pacific: There are no active tropical cyclone

 

Central North Pacific:

Tropical Storm Pena is located 1160 miles southwest of Honolulu, Hawaii

PENA CONTINUES WESTWARD WHILE PASSING WELL SOUTH OF JOHNSTON ISLAND

cone graphic

 

Northwest Pacific Ocean:

Tropical Cyclone 31W (Cempaka)…is located approximately 360 NM north of Minami Tori Shima – Final Warning

https://www.metoc.navy.mil/jtwc/products/wp3126.gif

 

Southwest Pacific Ocean: There are no active tropical cyclones

 

North and South Indian Oceans / Arabian Sea: There are no active tropical cyclones

 

https://www.metoc.navy.mil/jtwc/products/abpwsair.jpg

Here’s the link to the Joint Typhoon Warning Center (JTWC)



Interesting: 
Can Engineering Solve the Forever Chemical Problem?

Among the technical inquiries spanning topics like cyclodextrin polymers and mass spectrometry that were stacked in Damian Helbling’s inbox was a question about four golden retrievers.

A local woman had contacted Helbling, a professor in Cornell’s School of Civil and Environmental Engineering and a leading researcher of trace organic chemicals in water, wanting to know if it was safe for her dogs to swim in a nearby pond.

“I also have a golden retriever that loves to swim and I absolutely sympathize with this question,” Helbling said, “but I hesitate to give a concrete answer when people ask me such specific questions about the safety of their water. As a researcher, I tend to look at the situation through a totally different lens.”

Read More: Cornell University

Damian Helbling, professor of civil and environmental engineering, shows a laboratory sample to doctoral students Florencia Corbo-Ferreira and Fanshu Geng. The researchers are working to better understand, detect and remove PFAS, also known as forever chemicals, from the environment.