The latest update to this website was at 1233pm Friday (HST)

 

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

3.74  Mount Waialeale, Kauai
1.72  Tunnel RG, Oahu
0.55  Puu Alii, Molokai
0.04  Lanai AP, Lanai
0.67  West Wailuaiki, Maui
1.11  Honolii Stream, Big Island

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

23  Port Allen, Kauai
25  Oahu Forest NWR, Oahu
27  Makapulapai, Molokai
31  Lanai 1, Lanai 
40  Na Kula, Maui
31  Kawaihae Rd, Big Island

 

Hawaii’s MountainsHere’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

Cold front northwest…thunderstorms south 

 

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

 Variable low clouds over the islands…higher clouds moving over us from the west

 

 

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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, CA) at my friend Linda’s place

It’s clear early this morning…with a low temperature of a very chilly 36 degrees.

Weather Wit of the day: Aviation Forecast – “The rain falls mainly on the plane”

Interesting webblog: Mauka Showers…Collecting Rainfall Data – The Old School Way

>>> Highest Temperature Thursday, November 20, 2025 – 92 at La Puerta, Texas
>>> Lowest Temperature Friday, November 21, 2025 – 8 at Peter Sinks, Utah

 

Hawaii’s Broad Brush Weather Overview: A wet morning for many under mostly overcast skies and light trades. Shower activity and winds will both continue to decline into Saturday. Typical trade weather this weekend where showers will favor windward areas, with the occasional shower making into the leeward sides. Weather will trend more wet going into the middle of next week, as weak troughs passing north of the state draw up more moisture rich southerly air across the state.

Hawaii’s Weather Details: A fairly active radar this morning as a moist air mass is currently passing over the island chain. Quick hitting light to moderate showers caught within moderate trades have put down a few tenths of an inch of rain since midnight…quarter inch totals being measured over a handful of windward Kauai, Oahu and Big Island communities. A swath of mid to upper level clouds moving up from the southwest within weak upper troughing, that is residing in the vicinity of the state will create muted sunshine.

A jet stream level trough passing through to the east will draw up higher mid layer moisture and guarantee greater shower frequency and a more overcast day. This trough does not appear that it will produce a great deal of instability, but under the weakened trade wind flow, it could trigger a few afternoon showers over more leeward terrain. Partially to mainly overcast skies, along with the mixing provided by light easterly breezes, will regulate temperatures by a few degrees and promise a relatively comfortable afternoon and evening.

A high is centered far northeast of Hawaii will maintain light to moderate trades across most of the interior and nearshore waters into Sunday. The next high moving in from the west will replace this high early next week and briefly weaken the downstream pressure gradient, subtly weakening winds heading toward Thanksgiving Day. Upper ridging from the west will expand eastward across the Central Pacific as a weak trough rides in from the west. Weak ridging will be the alpha feature and maintain order in the form of stability in the days leading up to the holiday. This equates to light to moderate trades and windward-focused showers early next week.

Stubborn passing troughs far north of the state may dig further south from Tuesday night onward into next weekend. This features may draw up higher equatorial moisture and increase rain probabilities from Tuesday night onward. A deeper trough may descend and move into the vicinity of the islands around Thanksgiving. Numerical weather prediction models are in disagreement on the location of this trough next Friday but do agree that a cold front may reach the western waters next weekend. While uncertainty is low on the timing and location of the front, confidence is just high enough to mention a slight probability of a cold front sitting on our western doorstep this Thanksgiving holiday weekend.

Fire weather:  Critical fire weather conditions are not expected through the weekend. Breezy, relatively wet trades will create elevated afternoon humidity levels. Rainfall behavior and trade winds will drop off going into early Saturday. Light to moderate trade winds and fairly stable conditions are forecast through early next week.

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: High pressure far northeast will continue to drift eastward through the weekend as a front passes north of the waters. Fresh to locally strong trade winds will gradually ease through the forecast period. The Small Craft Advisory (SCA) has been trimmed and extended to the windier waters and channels around Maui County and the Big Island through tonight. A new high pressure building in north of the waters this weekend will continue to move east, and keep trade winds in the gentle to locally fresh range through the early part of next week.

The current northwest swell will continue to decline and plateau at small to moderate levels. A small to moderate long period northwest swell is expected to start building in and keep surf heights elevated over the weekend near High Surf Advisory (HSA) levels for north and west facing shores. Long period forerunners have started to fill in from this new swell at the buoy northwest of the islands. A slight reinforcement of similar magnitude is expected from the northwest, building in Saturday, and peaking Saturday evening into Sunday. In the long range, a potentially larger northwest swell is expected around the middle of next week.

As the trade winds gradually weaken over the coastal waters and upstream of the islands, the current rough and choppy surf along east facing shores will slowly decline into the weekend and into early next week. Surf along south facing shores will decline as the south-southeast swell eases. Surf looks to remain tiny to small through the forecast period with tiny background southerly energy.

makua beach on oahu camping



World-wide Tropical Cyclone Activity

 

Atlantic Ocean:  There are no active tropical cyclones

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

Caribbean Sea:  There are no active tropical cyclones

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

Gulf of America:  There are no active tropical cyclones

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:  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:

Tropical Cyclone 05S (Fina)…is located 114 NM northeast of Darwin, Australia

https://www.metoc.navy.mil/jtwc/products/sh0526.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: UH Calculates Survival Needs of Deep-diving Hawaiian Pilot Whales

For the first time, scientists have calculated a detailed “energetic budget” for Hawaii‘s short-finned pilot whales, revealing what it takes to power their extreme, 2,600-feet dives for food.

A new study led by the University of Hawaii at M?noa’s Hawaii Institute of Marine Biology (HIMB) found an average adult whale must eat 142 squid daily to survive, scaling up to 416 million squid annually for the entire population of short-finned pilot whales. This data, published in the Journal of Experimental Biology, provides a new benchmark for protecting the historically understudied marine mammals.

“Pilot whales are one of the only oceanic dolphins that regularly dive to extreme depths—up to 1,000 meters—to find prey,” said William Gough, Marine Mammal Research Program (MMRP) postdoctoral researcher and lead author of the study. “This deep-diving, high-risk foraging strategy requires a delicate balance between the energy they spend and the energy they acquire. Our study is the first step in quantifying that balance for this specific population.”

Read More: University of Hawaii