The latest update to this website was at 830pm Sunday (HST)

 

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

0.37  N Wailua Ditch, Kauai
0.79  Schofield East, Oahu
0.17  Honolimaloo, Molokai
0.02  Lanai AP, Lanai
0.87  West Wailuaiki, Maui
0.95  Kawainui Stream, Big Island

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

32  Lihue, Kauai
32  Oahu Forest NWR, Oahu
27  Molokai AP, Molokai
24  Lanai City, Lanai
33  Na Kula, Maui
27  Pali 2, 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 front far northwest 

 

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

 Mostly low clouds…along with high cirrus 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 Sunday comments:  I’m home here in upper Kula, Maui, Hawaii.

It’s mostly clear here in Maui County early this morning. The low temperature at my place was 52.5 degrees…with a relative humidity of 80%.

105pm, I played 4-games of Pickleball this morning, like I did yesterday in Haiku…which was very fun. I told all my friends that I’d see them again right after Thanksgiving, as I was leaving tomorrow for a 6-week vacation in northern California and eastern Oregon.

440pm,  cloudy with a light shower here in upper Kula, although I can see some sunshine down close to the beaches.

842am, looks like we may have our sunshine on Monday muted some by a new area of high cirrus clouds heading our way from the southwest.

Weather Wit of the day: Winter – The freezin’ season

Interesting Blog: Mauka Showers – Flash Floods in Hawaii – NWS Long Lead Time Products

>>> Highest Temperature Sunday, October 19, 2025 – 101 near La Puerta, Texas
>>> Lowest Temperature Sunday, October 19, 2025 – 18 near Grand Lake, Colorado

 

Hawaii’s Broad Brush Weather Overview: Locally breezy trades will gradually ease through Wednesday before re-strengthening. Shower activity will be focused predominately across windward and mountain areas, with only a brief shower or two passing over to leeward areas. The main exception would be the Kona slopes of the Big Island, where heavier showers and a brief thunderstorm remain possible during the afternoon and early evening hours through Wednesday.

Hawaii’s Weather Details: Radar shows isolated to scattered showers moving east across the state, with activity favoring windward and mountain areas. Clouds continue to build over the Kona side of the Big Island, and an isolated thunderstorm is not out of the question.

A large area of high pressure at the surface was centered off the west coast of the mainland. It will lose strength as a new center forms in the central Pacific by Tuesday. This new high then progresses slowly eastward and ends up roughly due north of the state by the end of the week. The result will be a weakening of the trades through late Tuesday or early Wednesday, followed by a re-strengthening as the surface high moves east. Mainly windward showers will develop and move through periodically.

Aloft, a low will drop south toward the islands through Monday, and then weaken as it moves east, ending up to our northwest. A weak and persistent trough will then be draped over/near the eastern counties through Thursday or so. This will keep that area a little more unstable than usual for the next few days. There should be enough moisture, along with this instability, to allow for stronger showers and perhaps even a thunderstorm over the leeward side of the Big Island through Wednesday.

Fire weather:  Moderate to locally breezy trades will prevail under slightly unstable conditions, that will produce some enhanced moisture and increase humidity levels keeping fire weather conditions below critical levels. Trades are expected to gradually ease through Wednesday, and strengthen thereafter for the remainder of the week. Temperature inversion heights near Maui and the Big Island will range from the 5,500 to 6,500 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: Moderate to locally strong trades will gradually weaken across the Hawaiian coastal waters, as a surface high shifts further northeast. Moderate to locally fresh trades will develop tonight into Monday and persist through mid-week as the surface high lingers far northeast of the state and another high develops far northwest. A Small Craft Advisory (SCA) remains in effect over the windier waters and channels surrounding Maui County and the Big Island. The SCA may need to be extended if the trade winds speeds continue to hold within locally strong range a little longer than expected.

Surf along north and west facing shores will continue to slowly trend down as two moderate, long-period northwest and north-northwest swells fade. A series of small to moderate, long period northwest to north-northwest swells (320-340 degrees) will fill in throughout the week, keeping surf elevated. The first of these swells (320-330 degree) is expected to fill in tonight, before peaking Monday, producing above average surf. A slightly smaller size swell (330-340 degree) will peak late Tuesday before fading Wednesday. A larger, moderate, long period swell (330-340 degree) could produce advisory level surf for north and west facing shores late Wednesday into Thursday.

Background, medium- to long-period south to southwest swells will continue to filter into the area through the upcoming week, keeping surf along south facing shores from going flat. Rough, choppy surf along east facing shores will persist before dropping a notch Monday, as trades trend down slightly through mid-week.

 



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

Invest 98L

>>> A tropical wave located over the eastern Caribbean Sea, a few hundred miles west of the Windward Islands, is producing a large area of poorly organized showers and thunderstorms. Recent satellite-derived wind data indicate that the disturbance continues to lack a closed circulation, although it is producing winds of 30 to 40 mph to the north and east of the wave axis. The system is moving quickly westward at 20 to 25 mph, which should limit significant development during the next day or so. Thereafter, environmental conditions are expected to become more conducive for development as the wave slows down over the central Caribbean Sea, and a tropical depression is likely to form during the middle to latter part of this week. Regardless of development, heavy rainfall and gusty winds are expected to continue affecting portions of the Windward and Leeward Islands this morning.

* Formation chance through 48 hours…low…30 percent
* Formation chance through 7 days…high…70 percent

 

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

Central East Pacific:

>>> A surface trough located a few hundred miles south of the Gulf of Tehuantepec is producing disorganized showers and thunderstorms. Environmental conditions are expected to be conducive for gradual development of the system, and a tropical depression could form by late this week as it moves generally westward at 10 to 15 mph.

* Formation chance through 48 hours…low…10 percent 
* Formation chance through 7 days…medium…50 percent 

 

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: 

Tropical Cyclone 30W (Fengshen) is located approximately 497 NM east-northeast of Da Nang, Vietnam

https://www.metoc.navy.mil/jtwc/products/wp3025.gif

Southwest Pacific Ocean:  There are no active tropical cyclones

North and South Indian Ocean:  There are no active tropical cyclones

South Indian Ocean:

Tropical Cyclone 04S (Chenge) is located approximately 271 NM west-southwest of Diego Garcia

https://www.metoc.navy.mil/jtwc/products/sh0426.gif

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:  How Trees Recycle Nutrients to Produce Their Autumn Colors

The leaves have turned in the northern hemisphere and the Lower Mainland is seeing its blaze of glory.

But what science is at work behind these chameleon leaves, and why does B.C. put on a dimmer show than other provinces? UBC botanist Dr. Santokh Singh explains, and highlights his favorite leaf-viewing spots.

Why do leaves change color in autumn?

The scientific term is leaf senescence: biochemical and molecular changes that start in early or mid-September that change the leaves’ color from green to orange, yellow and red. It’s actually the plant recycling its nutrients.

Read More at: University of British Columbia