The latest update to this website was at 604pm Wednesday (HST)

 

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

0.78  Kilohana, Kauai
0.43  Luluku, Oahu
0.01  Kamalo, Molokai
0.02  Lanai City, Lanai
0.20  Kula Branch Stn, Maui
0.01  Puu Waawaa, Big Island

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

28  Lihue, Kauai – SW
30  Kaneohe, Oahu – SW
22  Molokai AP, Molokai – SW
18  Lanai 1, Lanai – SW
27  Kealaloloa Rg, Maui – WSW
20  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

Comma shaped cold front approaching the state 

 

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

 The leading edge of the cold front is closing in on Kauai

 

 

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…mostly around Kauai 

 


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 here at home through the winter in upper Kula, Maui

It’s clear here in Maui County early this morning, with high cirrus clouds which lit up a pretty pink at sunrise…with a chilly low temperature of 46 degrees at my place, with the relative humidity 77 percent.

Early afternoon finds voggy skies here in Maui County with quickly increasing clouds.

Late afternoon still finds voggy air, although the clouds are backing off, and sunshine has returned here in upper Kula.

6pm, the south to southwest kona winds continue early this evening, as a cold front reaches Kauai, on the way to Oahu and Maui County Thursday. The humidity here at my place is 74% with a temperature of 61.7 degrees.

Flash Flood Potential: A band of heavy rain is forecast to develop over the western end of the state on Sunday and persist into next Tuesday. The primary period of interest is the 24 hour period spanning Sunday night through Monday night. At this time, the most likely islands to be affected are Kauai and Oahu. Impacts will be conditional on the position of the heavy rain band and the degree to which it remains stationary. The potential for flash flooding will be further refined in future notices.

Weather Wit of the day: Ski Forecast – “Powder to the People”

>>> Highest Temperature Wednesday, December 10, 2025 – 91 at Pala, CA
>>> Lowest Temperature Wednesday, December 10, 2025 – minus 8 at Crosby, ND

Mauka Showers web blog…The Central North Pacific Hurricane Season, 2025 Edition

Incredible Lava flow Fountain on the Big Island – December 6th

 

Hawaii’s Broad Brush Weather Overview: A cold front will bring a round of showers to Kauai tonight and Oahu early Thursday before stalling over Maui County during the day. Limited rainfall is then expected through Saturday, before a stronger front brings heavy rainfall potential to the western end of the state Sunday through Tuesday.

Hawaii’s Weather Details: There’s a scarcity of moisture over the islands as evidenced by clear to partly cloudy skies over area waters and very dry atmospheric soundings out of both Lihue and Hilo. At the time of this writing, strongly stable conditions prevail with an inversion around 5,000 feet. Satellite indicates a decaying cold front advancing towards Kauai. Satellite observations put upstream shower tops around 11,000 feet, which closely matches the modeled moisture depth, as this shower band moves into the island chain tonight.

With the parent trough already departing to the northeast, this front will have no upper support and will instead move into the area against general large scale subsidence. A few leeward showers will be possible within southerly flow ahead of the front, but the convergent frontal band itself, and trailing NW winds will serve as the focus for the bulk of rainfall.

This precipitation will fall along exposed slopes first over Kauai, through early Thursday morning for Oahu. The NW flow will rapidly weaken as it veers to NNE Thursday. Consequently, showers may hang up along the northern slopes of Kauai for a time, but the potential for any stream rises there, as shower intensity and coverage behind the front quickly winds down.

Thursday through Saturday night – Lack of large scale forcing causes the front to stall over Maui County on Thursday, while the rapidly diminishing pressure gradient allows potential for a transition from windward showers to interior showers, as afternoon sea breezes develop, mainly over interior Maui. A few afternoon showers will also be possible over Oahu since the punch of dry air will struggle to push that far east.

Overnight land breezes bring drying to all islands on Thursday night. The remainder of this time period will generally be dry, though moderate southerlies threaten to push the occasional shower over leeward areas of Kauai through Maui. By Saturday night, there will likely be limited shallow leeward showers coupled with a developing layer of rain aloft, most likely centered between Kauai and Maui. Any rainfall through Saturday night is forecast to be modest.

Sunday through Tuesday – This period represents a transition to a more dynamic pattern. A second remnant cold front, not dissimilar from the current one, will advance into the western portion of the state during the day Sunday, providing a boost to low-level moisture.  This in turn deepens the existing cold front The resulting mature system will be accompanied by a narrow corridor of strong uplift, that will support a band of heavy rain somewhere over the western end of the state Sunday night through Monday night.

The parent trough remains rather progressive suggesting a 24-36 hour type of event. Upon the departure of supporting upper dynamics on Tuesday, the orphaned frontal moisture band will once again stall over the area through mid-week, in maintenance of lingering showers over the area. Southerly kona winds prevail throughout this time, keeping leeward areas in off and on rainfall for at least the next week.

Fire weather:  Conditions should remain below critical fire thresholds through the week with light winds and elevated RH. Temperature inversion heights should linger around 6,000 to 7,000 feet through Thursday.

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: Light southerly winds will hold as a front approaches from the northwest. The front will enter the Kauai waters late tonight and move west to east across the state through Thursday, before stalling and dissipating around Maui County Thursday night. An increase of showers are expected along and ahead of the front with moderate northerly winds following behind it. Another front approaching from the northwest will generate moderate southerly winds this weekend, with an increase of showers expected on Sunday.

A new moderate, long period northwest swell (320 degree) continues to fill in 1 to 2 feet above guidance. A reinforcing north-northwest swell (330 degree) is expected to fill in tonight and peak Thursday morning, keeping surf elevated. A Small Craft Advisory has been issued for seas building around Kauai and windward Oahu waters as the current swell peaks. A High Surf Advisory for select north and west facing shores remains in effect through Thursday. These overlapping swells will slowly decline Thursday night into the weekend. Another moderate, long period northwest swell (320 degree) should gradually fill in on Sunday, and could produce surf near the advisory threshold by Sunday evening.

Small, choppy east shore surf will become minimal over the next few days, as winds near and upstream become disrupted by approaching fronts. Expect minimal background surf for south facing shores, with a minor south-southwest pulse expected into Thursday.

 

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Large surf north and west shores


Cold Front bring showers



World-wide Tropical Cyclone Activity

 

Atlantic Ocean:  There are no active tropical cyclones

Caribbean Sea:  There are no active tropical cyclones

Gulf of America:  There are no active tropical cyclones

 

Northeastern Pacific:  There are no active tropical cyclones

North Central Pacific: There are no active tropical cyclones

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: Nearly 8,000 Animal Species at Risk as Extreme Heat and Land-Use Change Collide

Almost 8,000 animal species could be pushed closer to extinction by the end of this century as the interacting effects of climate change-driven extreme heat and human land-use change create increasingly unsuitable conditions across their habitats, according to new research from a international research team led by Dr Reut Vardi of the School of Geography and the Environment, University of Oxford.

The study, ‘Effects of future climate extreme heat events and land use changes on land vertebrates’, published today in Global Change Biology, assessed nearly 30,000 species of amphibians, birds, mammals, and reptiles. It examined how future extreme heat events and projected land-use changes will affect species across their preferred habitats and thermal limits.

Dr Reut Vardi, Postdoctoral Researcher, School of Geography and the Environment, said:

‘Our research highlights the importance of considering the potential effects of multiple threats together to get a better estimation of their potential impact. It further stresses the urgency of conservation and mitigation actions globally to prevent immense losses to biodiversity.’

Read More: University of Oxford