The latest update to this website was at 831am Friday (HST)

 

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

0.25  N Wailua Ditch, Kauai
0.84  Tunnel RG, Oahu
0.04  Puu Alii, Molokai
0.00  Lanai 1, Lanai
0.21  Hana AP, Maui
0.35  Lalamilo, Big Island

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

10  Waimea Heights, Kauai
12  Kii, Oahu
07  Kalae Hwy, Molokai
08  Lanai 1, Lanai
12  Na Kula, Maui
14  Waikoloa, 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 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 

 

 

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

Bob and I will be driving to Sebastopol in Sonoma County, to buy food and have lunch. We have a week long vacation rental right on the coast. I’ll be up there around 2pm this afternoon Hawaii time. I’ll set up my computer and be back online with updates for you shortly thereafter.

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 Thursday, November 6, 2025 – 97 at Rio Grande Village, Texas
>>> Lowest Temperature Friday, November 7, 2025 – 7 at Mt. Washington, NH



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: Light winds are expected across the state today, as a cold front approaches from the northwest, allowing for sea breeze development and limited shower activity over leeward and interior areas.

The front will move north to south across the islands chain this weekend into early next week, bringing increased rainfall that will be primarily focused along windward slopes. Breezy to windy trades will follow the front, persisting through much of next week.

Hawaii’s Weather Details: Radar and infrared satellite imagery show some layered high clouds continuing to stream over the islands, with very sparse low cloud and shower coverage across the island chain. These upper-level clouds, tied to jet stream dynamics aloft, are expected to taper off later today. The trade winds have been mostly cut off thanks to a broad low pressure system to the northeast and its associated cold front approaching the state from the north.

In this lighter flow, sea breezes will likely form, bringing low clouds and isolated to scattered showers to island interiors, as well as along any weak convergent boundaries. Despite the slight weakening of the mid level ridge over the area, generally stable conditions will remain in place in advance of the front`s arrival in Hawaii, so any showers that do form will likely be light.

The latest model guidance has come into better agreement on the pattern for this weekend into next week, gradually increasing forecast confidence. The aforementioned cold front is expected to approach the western end of the state on Saturday and pass over the eastern end by sometime on Sunday. Light winds can be expected to prevail ahead of the front, with breezy to windy east-northeasterly winds in its wake.

Modest low level moisture pooling ahead of and along this boundary will increase rain chances as the front progresses down the island chain, but with mid level ridging still in place, rainfall rates should be limited. The relatively quick-moving nature of the front will serve as an additional limiting factor for flooding concerns.

Breezy to windy east-northeasterly trades will become established across the state early next week, as high pressure builds to the north. Another reinforcing front with an even stronger high pressure system (1036 milibars) will arrive mid-week, providing another boost in the east-northeasterly trades. With mid level ridging persisting, inversion heights will remain low, keeping the moisture confined to lower levels and focusing clouds and showers over windward and mountain areas.

Fire weather: With light winds prevailing ahead of an approaching cold front into Saturday, critical fire weather concerns are not expected. Additionally, increasing moisture is expected with the frontal passage this weekend. Trades are forecast to return and become breezy to windy throughout the week next week, though it may be difficult to reach critical relative humidity thresholds.

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: The wind flow will become light and variable as an area of low pressure moves north of the Hawaiian Islands, and an associated cold front approaches from the northwest. The front is forecast to pass across the island chain late Saturday into Sunday. Behind the front, expect fresh to locally strong north-northeast winds to fill in. These winds should last into early to mid next week as high pressure builds north of the state. Small Craft Advisories will likely be needed during this time.

The current small to moderate, medium period, northwest swell (320-330) will slowly subside through early Saturday, and keep surf size near seasonal norms along north facing shores. A deep low pressure system will pass well north of the state, with a north to south fetch pointed directly towards the islands. This low will generate a large, short to medium period, northerly swell that will help to bump surf heights up late Saturday into Sunday, that will likely exceed the High Surf Advisory threshold for north facing shores. This fetch will also favor harbor surges in north facing harbors such as Kahului and Hilo on Sunday. Additional north-northeast swell should continue elevated swell conditions along north and east facing beaches through early next week.

Surf will remain small along east facing shores as trade flow weakens to light and variable. As a cold front presses southward across the island chain Saturday into Sunday, winds will shift northeasterly and increase in strength. This, combined with a large, moderate period, north or north-northeast swell will bring high surf and choppy conditions to east facing shores late Saturday through Monday. A High Surf Advisory will likely be needed during the peak of the event.

A small, long period, south-southwest swell will boost surf heights later into Saturday to near seasonal norms along south facing shores. Several more similarly sized southerly swell will enter the waters Sunday into early next week.

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 for the next several mornings. Thus, the Coastal Flood Statement has been extended through noon Saturday.



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 32W (Fung-wong)…is located approximately 856 NM east of Manila, Philippines 

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:  Spotted Lanternfly May Use ‘Toxic Shield’ to Fend off Bird Predators

Spotted lanternflies may season themselves to the distaste of potential bird predators, according to a new study led by entomologists in Penn State’s College of Agricultural Sciences.

The findings, which were published this week (Oct. 23) in the Journal of Chemical Ecology, showed that several species of birds were less likely to eat spotted lanternflies that had fed on the pest’s preferred host, Ailanthus altissima, commonly known as tree of heaven. This suggests the pest stores nasty-tasting chemicals when they feed on the invasive plant that birds can detect, according to the research team.

Further, they said, the extent to which birds may play a role in pecking away at spotted lanternfly populations remains up in the air and depends on various factors.

Read More: Pennsylvania State University