The latest update to this website was 621pm Thursday evening (HST)

 

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

0.34  Mount Waialeale, Kauai
0.16  Pupukea Road, Oahu
0.12  Puu Alii, Molokai
0.00  Lanai
0.75  West Wailuaiki, Maui
0.25  Kaiholena, Big Island

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

22  Port Allen, Kauai
28  Oahu Forest NWR, Oahu
22  Molokai 1, Molokai
25  Lanai 1, Lanai
51  Na Kula, Maui
27  Lalamilo, 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 in the deeper tropics…cold fronts northwest 

 

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

 Variable low clouds…along with higher clouds approaching from the southwest

 

 

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 Thursday comments:  I’m here in Bend, Oregon with my friend Bob Earle.

It’s clear here in Bend early this morning. The low temperature was a frigid 18.5 degrees, which is just a few feet from the river.

I flew to Redmond, Oregon yesterday morning, where my friend Bob picked me up and drove us back to Bend. We’ve rented a place right on the Deschutes River for a week. We both went to college together, and have been best of friends ever since.

It’s turned mostly cloudy today, most of which are high level Cirrus clouds here in Bend.

Bob and I sat out in dark on our deck right over the river, and had an orange juice with Vodka in it…or was it the second drink!?

Weather Wit of the day: Fall – I always find it a little disturbing going from fall to winter. It’s like watching a black and white television after you’ve been used to color.

>>> Highest Temperature Thursday, October 30, 2025 – 98 near Pala, CA
>>> Lowest Temperature Thursday, October 30, 2025 – 12 at Grand Lake, CO

 

Hawaii’s Broad Brush Weather Overview:  Moderate trade winds and stable conditions will limit showers across the area through Saturday morning. A front and upper low will approach and bring unsettled weather across the state, particularly for Kauai Sunday and Sunday night. Remnant moisture will continue to push over the state Monday and Tuesday.

Hawaii’s Weather Details: A surface high far northeast of the state is driving moderate trade winds across Hawaii. Satellite and radar imagery shows isolated showers moving across windward waters, with mostly sunny conditions leeward sides. aside from the sea breeze driven clouds over the Big Island Kona slopes. Weak troughing aloft over the state is not strong enough to erode the trade wind inversion. Little change is expected in the forecast through Saturday morning with stable, moderate trades carrying in occasional windward and mountain clouds and showers.

A cold front north of Hawaii will slowly approach over the next several days. The front is forecast to weaken through Saturday, before an upper low cuts off out of the North Central Pacific, and quickly moves towards the state passing just northwest of Kauai on Sunday, before moving away to the west. 5Temperatures aloft will cool over the island chain as the low passes by.

The upper low will induce a trough at the surface directly over the islands on Sunday. Winds will weaken slightly and shift out of the southeast around Big Island and Maui County, and out of the northeast for Kauai and Oahu. Clouds and showers will increase as early as Saturday afternoon for the Big Island, and statewide Saturday night into Monday, as frontal moisture moves in over Kauai and Oahu.

Winds will shift back to trades as the trough moves west of the state Sunday night and Monday following the upper low. Trades will push clouds and showers in place over the state Monday, keeping conditions quite wet. Main heavy rain potential lies in the brief passage of the upper low over the low level frontal moisture, which coincides across the far western end of the state Sunday and Sunday night. A Flood Watch may come into play for Kauai during the Sunday to Sunday night time period, with particular emphasis on the north and east sides of the island.

In the long-range, additional uncertainty is portrayed by the GFS model, depicting a weak, cut off low developing just west of the island chain mid-week. Should this feature become fruitful, it would result in an increase of showers moving back in from the west.

Fire weather: Increased relative humidity values and light to moderate trades will keep fire weather conditions below critical thresholds for the next several days. Temperature inversion heights near Maui and the Big Island will range from 6,500 to 7,500 feet elevation 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: Surface high pressure anchored far northeast of the Hawaiian Islands will maintain moderate to locally strong trades into early this weekend. A Small Craft Advisory (SCA) has been issued for the Alenuihaha Channel, Maalaea Bay, and Pailolo Channel to account for some of these locally stronger winds. A cold front is forecast to press southward over the western waters Sunday into Monday and bring an increase in northeast winds to near SCA criteria. Weak east-northeast trades will return thereafter.

A small, long period NNW swell (330) will fill in and and keep surf along N and W shores elevated through Friday. Surf will then trend sharply upward late Friday through Monday, in response to a couple of swells sent toward the islands by an active pattern across the N Pacific. Forerunners from a moderate, long period NNW (330) swell will arrive Saturday, with surf peaking near or below the High Surf Advisory (HSA) threshold. The swell will build late Saturday into Sunday. This brings a messy forecast scenario during this time, as model guidance seems to be contaminated by merging strong NNE post-frontal wind swell, leading to a larger and more north swell in the output than expected. Nonetheless, HSA conditions will certainly be possible for north facing shores late Saturday through Monday.

Surf along E shores will remain small to moderate through Saturday. Strengthening post-frontal NNE trades may bring a rapid increase in wind waves and short period fresh swell for favored exposures Sunday through early next week, particularly over the western end of the state. A small south swell will slowly fade through this weekend.

 



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: 

Tropical Cyclone Melissa…is located about 260 miles west-southwest of Bermuda

MELISSA BECOMING LESS ORGANIZED AS IT MOVES RAPIDLY NORTHEASTWARD…CONDITIONS IN BERMUDA WILL RAPIDLY DETERIORATE DURING THE NEXT SEVERAL HOURS

cone graphic

According to the NHC advisory number 38A

Melissa is moving rapidly toward the northeast near 32 mph. An even faster motion toward the northeast is expected into Saturday. A gradual turn toward the east-northeast is expected on Sunday. On the forecast track, the center of Melissa is expected to pass to the northwest of Bermuda tonight and pass south of the Avalon Peninsula of Newfoundland Friday night. Maximum sustained winds are near 105 mph with higher gusts. Little change in strength is likely through evening. However, Melissa is expected to weaken later tonight and Friday and become a post-tropical low by Friday night. Hurricane-force winds extend outward up to 80 miles (130 km) from the center and tropical-storm-force winds extend outward up to 255 miles (405 km). Automated stations on Bermuda have been reporting wind gusts near 40 mph during the past hour. The minimum central pressure estimated from Air Force Reserve Hurricane Hunter aircraft data is 970 mb (28.65 inches).

 

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 cyclone

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

North Central Pacific: There are no active tropical cyclone

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

Here’s the link to the Central Pacific Hurricane Center (CPHC)

 

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:  Building a More Reliable Power Future

Reliable electrical infrastructure is essential for everything that happens at UC Santa Cruz — teaching and research, dining and housing, and supporting the daily needs of thousands of students, faculty, and staff. Over the past year, the campus has taken important steps to strengthen power resiliency and reduce the disruption that unexpected outages can cause, especially during the winter rainy season.

The university relies on Pacific Gas and Electric Company (PG&E) for its day-to-day power needs. The main residential campus also has an established backup system that provides continuity of power to select buildings during outages. Our co-generation plant, along with building generators, supplies electricity to various facilities when PG&E power is unavailable.

Campus leadership and engineers continue to meet regularly with PG&E to review the quality of power being delivered to campus and ensure compliance with regulatory standards. These discussions are critical to identifying both immediate fixes and long-term infrastructure improvements.

Read more at: University of California Santa Cruz