The latest update to this website was at 430am Thursday (HST)

 

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

0.35  Mount Waialeale, Kauai
0.14  Lyon, Oahu
0.01  Puu Alii, Molokai
0.00  Lanai 1, Lanai
0.05  EMI Baseyard, Maui
0.59  Kawainui Stream, Big Island

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

16  Port Allen, Kauai
25  Oahu Forest NWR, Oahu
17  Makapulapai, Molokai
06  Lanai 1, Lanai
30  Summit, Maui
25  Mauna Loa Obs, 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 south…cold front far northwest 

 

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

 Variable low clouds…along with middle to higher level clouds over the islands 

 

 

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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 Thursday comments:  I’m here in Corte Madera, Marin County, California with my friends Linda and Bob.

Weather Wit of the day: Tree – A remarkable plant which sheds many more leaves in the fall than it grows in the spring

>>> Highest Temperature Wednesday, November 5, 2025 – 94 at Rio Grande Village, Texas
>>> Lowest Temperature Thursday, November 6, 2025 – 15 near Minong, WI



Monthly Precipitation Summary

Month: October 2025

Headline: October rainfall still largely below average state-wide, despite a better showing for Oahu and Big Island over September’s amounts.

The month began with moderate trades and increased moisture, bringing enhanced windward showers, especially on O?ahu and Molokai. As high pressure weakened between the 2nd and 5th, trades shifted southeast and lightened, allowing land and sea breezes to form. This shifted shower activity to interior and upslope areas, mainly southeast-facing slopes, though rainfall stayed generally light (around a quarter inch or less).

A weakening surface trough lingered over the western half of the state from the 6th to the 10th, bringing higher humidity and periods of light to occasionally moderate showers, most notably on Kauai where isolated totals reached 1 to 2 inches. Light southeasterly winds supported localized heavy rainfall over the southern coastal and upslope areas of Kauai and Oahu during this time. A Flood Advisory was issued for the island of Oahu for rainfall rates of 1 to 2 inches per hour. Moisture decreased after the 11th, though light winds continued to support afternoon inland showers through the 14th.

Moderate to breezy trades returned mid-month along with an upper low near Kauai, producing several days of wetter weather from the 16th into the 21st. Heavy rain prompted the issuance of a Flood Advisory on the Kona slopes of the Big Island on the 16th for rainfall rates of up to 1 inch per hour and for the island of Kauai on the 17th for rates of 1 to 2 inches per hour. A drying trend took hold from the 22nd to 24th as trades strengthened into the breezy to locally strong range, leading to periods of critical fire weather conditions across interior and leeward zones.

Deep tropical moisture was drawn northward into the Big Island beginning on the 24th and spread westward across the state. The heaviest rainfall occurred over windward areas of the Big Island and Maui, while cold temperatures aloft allowed for wintry precipitation on the Big Island summits. Some leeward and higher terrain areas received 1 to 2 inches of rain, prompting a Flood Advisory for Kauai during early morning on the 28th. Trade winds weakened again over the last few days of the month as a front lingered well north of the state. On the 29th, enhanced showers from lingering instability from an upper trough brought heavy rainfall to the Big Island from Hilo around South Point to Kona, triggering a Flood Advisory. Conditions trended drier to close out the month under light to moderate trades.

 

Hawaii’s Broad Brush Weather Overview: Trade winds will taper off through Friday, as a cold front approaches the islands from the northwest. The front will move north to south across the island chain Saturday night through Monday, bringing rainfall focusing on windward slopes. Strong trade winds will follow the front that will continue into next week.

Hawaii’s Weather Details: Satellite imagery indicates the ridge axis anchored north-northeast of the state with little upper level troughing. Radar shows light showers across windward and mountain locations. With the ridge being the dominant feature expect stable, moderate trades to veer east-southeast today and gradually decline. Any showers that do form will be mainly focused over windward and mountain spots. With lighter winds expect a sea/land pattern to develop with isolated showers possible across leeward and interior locations Friday into Saturday.

From Sunday through mid-week next week, a cold front is expected to arrive and move down the island chain. The GFS model is a bit faster compared to the ECMWF, which has the front reaching the Big Island by Monday as opposed to the faster GFS reaching it by Sunday afternoon into the evening. Strong trade winds overrunning the front will bring mostly windward showers, but many of the showers will blow over to the leeward sides of the smaller islands. With little to no upper-level support, rainfall is expected to be light with isolated pockets of some heavier rain…with limited flood potential.

Breezy trade winds will continue behind the cold front into next week as a strong high sets up far north of the state. Conditions will remain stable, with scattered low clouds and windward and mountain showers.

Fire weather: Weakening and stable trades expected to veer east-southeast with relative humidity values remaining below critical fire weather thresholds into the weekend. The inversion will be between 5,000 to 6,000 feet for the time being.

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 ridge north of the Hawaiian Islands will weaken in response to a weak cold front approaching the islands from the northwest. Expect decreasing wind speeds into Saturday, as this front moves into the Hawaii Region. Fresh to locally strong northeast winds are expected behind the front as it sweeps from north to south through the islands, from Saturday evening through Monday. Fresh to locally strong trade winds will likely continue through next Tuesday, with slightly stronger trade winds expected from Wednesday onward.

The highest swell energy with the current north-northwest (340-350 degree) swell continues to pass just northeast of the Hawaiian Islands. Swell heights have underperformed as compared to recent forecast model guidance. This swell has peaked and will gradually fade heading into Friday. In the longer range forecast, a deep low pressure system is expected to develop to our north and northeast Friday into Saturday. This low will likely generate a large north-northeast (010-020 degree) swell late this weekend, easily exceeding HSA thresholds. Due to the swell angle, heavy surges will be possible along north facing harbors such as Kahului and Hilo on Sunday.

South facing shores will remain small throughout this week. A small long-period south-southwest (190-200 degree) swell will boost south shore surf heights Friday into the weekend, along with a larger out of season south swell possible by early next week. Surf for east facing shores will remain on the small side until later this weekend, when trade winds strengthen across the area.

Peak monthly tides combined with water levels that are running higher than predicted will lead to minor flooding along the shoreline and in low-lying coastal areas. The greatest chance for coastal flooding will occur during the daily peak high tide during the early morning hours, and along north facing shores exposed to the large north-northwest swell.

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World-wide Tropical Cyclone Activity

 

Atlantic Ocean:  There are no active tropical cyclone

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

Caribbean Sea:  There are no active tropical cyclone

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

Gulf of America:  There are no active tropical cyclone

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: 

Tropical Cyclone 31W (Kalmaegi)…is located approximately 151 NM south-southeast of Da Nang, Vietnam – Final Warning

https://www.metoc.navy.mil/jtwc/products/wp3125.gif

Tropical Cyclone 32W (Fung-wong)…is located approximately 98 NM east-northeast of Yap  

https://www.metoc.navy.mil/jtwc/products/wp3225.gif

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:  The Chilling Effect of Air Pollution

Earth is reflecting less sunlight, and absorbing more heat, than it did several decades ago. Global warming is advancing faster than climate models predicted, with observed temperatures exceeding projections in 2023 and 2024. These trends have scientists scrambling to understand why the atmosphere is letting more light in.

A new study, published Nov. 5 in Nature Communications, shows that reducing air pollution has inadvertently diminished the brightness of marine clouds, which are key regulators of global temperature.

Between 2003 and 2022, clouds over the Northeastern Pacific and Atlantic oceans, both sites of rapid surface warming, became nearly 3% less reflective per decade. Researchers attribute approximately 70% of this change to aerosols — fine particles that float through the atmosphere and influence both cloud cover and cloud composition.

When research emerged showing that some aerosols are harmful, efforts to limit particulate pollution — specifically targeting the products of fossil fuel combustion — followed. Aerosol levels will likely continue to fall as clean energy replaces oil and gas. To improve the accuracy of global temperature forecasts, scientists need to capture the true relationship between aerosols, clouds, and heat from the sun in climate models.

Read More: University of Washington

Image: Clouds shade Earth from the sun and clouds containing aerosols do so even more effectively than those without. A new study from the University of Washington describes how clouds have lost reflectivity over the past few decades, increasing the amount of sunlight that reaches Earth, where it is absorbed as heat.

across the world’s oceans.