The latest update to this website was at 552am Saturday (HST)

 

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

0.80  Makaha Ridge, Kauai
2.47  Palisades, Oahu
0.28  Kamalo, Molokai
0.42  Lanai AP, Lanai
0.36  Keokea, Maui
0.88  Kapapala Ranch, Big Island

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

13  Port Allen, Kauai – SE
18  Oahu Forest NWR, Oahu – NW
12  Puu Alii, Molokai – SE
14  Lanai 1, Lanai – SSW 
15  Kula 1, Maui – NW
14  Puuanahulu, Big Island – SE

 

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

 The recent cold front is now a more diffuse trough of low pressure

 

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

Variable clouds…some towering cumulus and cumulonimbus

 

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…some are heavy 

 

Please open this link to see details on any current Watches, Warnings and Advisories noted above

 

~~~ Hawaii Weather Narrative ~~~

 

Glenn’s Saturday comments:  I’m here at home in upper Kula, Maui

It’s mostly cloudy here in Maui County early this morning, and I just had a light shower, with a low temperature of 59 degrees at my place, with the relative humidity 80 percent.

Weather Wit of the day: Winter Weather Advisory – “A frozen nose and toes alert”

>>> Highest Temperature Friday, December 19, 2025 – 88 near Miles City, FL
>>> Lowest Temperature Saturday, December 20, 2025 – minus 5 near Coteau, ND

Interesting Web blog: Mauka Showers – Recap – Our First Big Rain Event of the Wet Season

 

Hawaii’s Broad Brush Weather Overview: Lingering instability over the islands continues to produce showers and isolated thunderstorms over the smaller islands. Light southerly winds today will result in some afternoon sea breezes, that could produce additional showers and thunderstorms over interior portions of the islands. Trade winds are expected to slowly make a return tonight, and strengthen into the first part of the new week.

Hawaii’s Weather Details: Lingering instability from the stationary front and trough to the north of the Hawaiian islands will be eroded by upper level high pressure to the southeast of the islands moving over the islands tonight. Light winds over the islands today will lead to afternoon sea breezes that will likely help contribute to afternoon convection over the smaller islands.

The threat for widespread flooding remains low, but with saturated grounds over the islands, particularly on Kauai and Oahu, additional showers could prompt additional flood advisories at times.

As the surface boundary is eroded, high pressure far north of the islands will sink southward, bringing trade winds back to our area as early as late tonight. Trade winds will then strengthen to moderate to locally breezy levels by Monday or Tuesday.

The trades will carry in residual moisture from the surface boundary to the windward and mountain areas. The GFS and ECMWF models are in good agreement with a mid-level high pressure ridge remaining over the islands through the end of the week.

Fire weather:  Conditions are expected to remain below critical fire thresholds over the next several days. Showers and generally high relative humidities will be accompanied by light southerly winds, that will transition to trade winds over the next couple of days.

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: A lingering unstable airmass will lead to another round of scattered showers and isolated thunderstorms over the western coastal waters with a light and variable wind flow. Gentle to locally moderate southeasterly winds will prevail across the eastern waters with less shower activity.

By late this weekend, easterly trade winds will gradually strengthen with the potential for SCA conditions over the windier waters and channels around Maui County and the Big Island. Expect trades to become even stronger early to mid next week, as surface high pressure builds to the north.

Two overlapping small to moderate, medium period, northerly swells (350 deg) and (010 deg) will dominate through the remainder of this weekend, and bring elevated surf to north facing beaches. However, surf should stay just shy of High Surf Advisory criteria, and combined seas will remain below Small Craft Advisory criteria. Late Sunday through mid next week, north swell energy fades which should allow surf to drop to below seasonal averages.

Surf along east facing shores will remain small given the lack of trade winds upstream of the islands, but areas exposed to the north swell will see an increase. As trade winds gradually strengthen late Sunday through early next week, east facing shores could become rough and choppy. Surf along south facing shores will remain flat to tiny through the weekend into early next week.

 

Thunderstorm brings snow to Hawaii in July



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:

Tropical Cyclone 09S…is located approximately 493 NM east of the Cocos Islands

https://www.metoc.navy.mil/jtwc/products/sh0926.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: Researchers Find Trees Could Spruce Up Future Water Conservation Efforts

Trees contain valuable information about Earth’s past, so much so that studying their rings may help fill in hidden gaps in Ohio’s environmental history.

Trees are the planet’s living lungs; they remove carbon from the atmosphere to clean the air, and filter our water. Yet depending on their species, not all record long-term environmental changes, such as fires, floods and droughts, in the same way.

By analyzing how various types of tree rings grow in response to these distinct weather-related events, researchers discovered that some can act as useful tools in managing local watersheds, that drain water into nearby streams and rivers.

Read More at: Ohio State University