The latest update to this website was at 8am Sunday (HST)

 

Here are the highest temperatures Saturday…and the lowest Saturday:

83 – 72  Lihue AP, Kauai
87 – 74  Honolulu, AP
82 – 72  Molokai AP, Molokai
87 – 72  Kahului AP, Maui
85 – 72  Kona AP, Big Island
83 – 67  Hilo, AP, Big Island

>>> There are lots of new locations that measure rainfall and winds now, here’s a map of all areas for your reference

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

0.40  Mount Waialeale, Kauai
0.44  Schofield East, Oahu
0.15  Puu Alii, Molokai
0.00  Lanai
0.61  West Wailuaiki, Maui
0.34  Pahoa, Big Island

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

18  Poipu, Kauai
35  Oahu Forest NWR, Oahu
27  Makapulapai, Molokai
21  Lanai 1, Lanai
36  Na Kula, Maui
36  Puuloa, 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/GOES17/ABI/SECTOR/tpw/13/GOES17-TPW-13-900x540.gif 

 A cold front is located northwest…with lots of clouds south


https://cdn.star.nesdis.noaa.gov/GOES17/ABI/SECTOR/hi/GEOCOLOR/GOES17-HI-GEOCOLOR-600x600.gif

Low clouds being carried our way on the trade winds

 

https://cdn.star.nesdis.noaa.gov/GOES17/ABI/SECTOR/hi/13/GOES17-HI-13-600x600.gif

High level clouds in the vicinity

 

https://radar.weather.gov/ridge/standard/HAWAII_loop.gif

Localized showers

 

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

Kauai and Oahu (Satellite)

 

https://radar.weather.gov/ridge/standard/PHKI_loop.gif

Kauai and Oahu (Radar)

 

https://www.weather.gov/images/hfo/satellite/Oahu-Maui_VIS_loop.gif

Oahu and Maui County (Satellite)

 

https://radar.weather.gov/ridge/standard/PHMO_loop.gif

Oahu and Maui County (Radar)

 

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

 Maui, Kahoolawe, Lanai, and the Big Island (Satellite)

 

https://radar.weather.gov/ridge/standard/PHKM_loop.gif

Maui County and the Big Island (Radar)

 

https://radar.weather.gov/ridge/standard/PHWA_loop.gif

Big Island (Radar)

 

Model showing precipitation through 8-days (you can slow this animation down)

 


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 before sunrise, with some higher level clouds to the southwest. The low temperature here at my place was a cool 51 degrees.

Heading over to play Pickleball in Haiku soon, will be back with more updates…have a good day wherever you are!

April had a respectable showing state-wide to round out the 2024-2025 wet season. The majority of stations reported near to above average rainfall totals for the month, with most of that falling during the second half of the month. The month began with moderate southeast to south winds and a surface ridge over the state, ahead of a cold front approaching from the northwest. The front moved through Kauai on the 3rd and stalled over the Kauai Channel on the 4th before dissipating. Moderate to fresh east to northeast trade winds filled in behind the front and continued through around the 14th. An increase in low-level moisture around the 9th and 10th acted to boost trade wind showers with some pockets of moderate to heavy rain, especially on Kauai and the Big Island, though no significant flood impacts occurred.

Around the middle of the month, the trade winds eased enough to allow a land/sea breeze pattern to set up from the 16th through the 19th. A disturbance aloft moving over the state during this time resulted in enough instability for some heavy showers and thunderstorms. The 17th focused the heaviest showers along Windward Maui and Oahu, as well as leeward Big Island and Kauai. The 17th through 18th saw the heaviest rainfall with windward and interior portions of Kauai and Oahu picking up 7 to 10 inches of rain in 24 hours, Mt. Waialeale, where they picked up the highest daily total for that island this month. Kauai Emergency Management reported flash flooding near the Hanalei River Bridge that day as well. The Poamoho Rain Gage #1 also recorded the highest daily total for Oahu in April. Other windward areas saw around 2 to 4 inches of rain, while the light winds and sea breezes allowed leeward areas to pick up several tenths of an inch of much needed rainfall.

Moderate to fresh easterly trades with typical scattered windward and mountain showers returned for the next few days as high pressure reasserted itself north of the area. During this period, a few heavier showers occurred over the leeward slopes of the Big Island and portions of Maui with rainfall rates of up to 2 inches per hour at times, though no significant flooding was observed. Trades weakened and shifted out of the southeast beginning on the 22nd ahead of the next weather maker in the form of a developing surface low and accompanying upper-level low northwest of the islands. These lows, along with the associated instability maximum and most thunderstorm activity, remained centered just west of Kauai, with the remainder of the state under high-moisture south to southeast flow. Portions of Kauai, Oahu, and Maui saw some heavy showers stream over them from the south with rainfall rates of around one inch per hour over the next couple of days, but the moderate to fresh wind speeds kept the showers moving quickly enough to avoid any significant flooding effects.

As the lows to the northwest weakened and stalled west of Kauai into the weekend of the 25th and 26th, the moderate southeasterly winds weakened, allowing land and sea breezes to set up over the majority of the state. However, Hawaii remained under a moist and relatively unstable airmass for the next few days, allowing some afternoon showers to become somewhat heavy over interior and leeward areas of Kauai and Oahu. None of these were enough for any real flooding impacts. Trade winds began to slowly return to round out the month as the troughs to the west dissipated.

Weather Wit of the day:  May – A month that’s outdoorable

Happy Mother’s Day to all you Mom’s!

 

Hawaii’s Broad Brush Weather Overview:  High pressure north of the islands will maintain moderate to breezy easterly trade winds. Clouds and showers will favor windward areas, particularly at night and during the early morning hours, with a few showers occasionally spilling into leeward communities, due to the strength of the trades. Some shower development is also expected each afternoon over the Kona slopes of the Big Island. A disturbance aloft could bring an increase in shower coverage and intensity Thursday through next weekend.

Hawaii’s Weather Details:  A high is centered well north of Hawaii, and is generating moderate to breezy trade winds across the island chain. Imagery shows partly cloudy conditions across much of the state, with a bit more cloud cover affecting some windward areas, as well as portions of leeward Big Island. Radar imagery shows scattered showers moving into windward slopes and coasts, with a few showers spilling leeward at times.

High pressure will strengthen as it shifts northeastward and further away from the islands today through Monday, keeping breezy trade winds active. The high will settle southeastward slowly Tuesday and Wednesday, with breezy trades persisting. A couple of cold fronts stalling northwest of the state, could result in a slight easing of the trades Thursday into next weekend.

Overall, fairly typical trade wind weather will prevail. Showers will favor windward areas, particularly at night and during the early morning hours, with an occasional shower falling in leeward communities, due to the strength of the trades. Sea breezes will drive shower develop over leeward Big Island each afternoon, with most of these showers fizzling out during the evening hours or shifting offshore. A disturbance aloft could increase shower coverage and intensity across the islands Thursday through next weekend.

Here’s a near real-time Wind Profile of the Pacific Ocean – along with a Closer View of the islands / Here’s the latest Weather Map / Vog map animation

Hawaii’s Marine Environment:  An area of high pressure far north of the state will maintain fresh to strong trades through early this week. Thus, a Small Craft Advisory (SCA) in effect for most Hawaiian Waters has been extended through late Monday afternoon. As the aforementioned high drifts slowly east, trade winds may weaken slightly Tuesday through mid-week. The SCA will likely continue for the windier waters around Maui County and the Big Island through much of the week.

Surf along south-facing shores will remain elevated as a long period south-southwest swell continues to push across the local waters. This should translate to surf heights just below advisory thresholds. Expect a slow slow downward trend through mid-week.

Surf along east-facing shores will be rough and choppy due to the stronger trade winds. Rough and choppy surf will persist throughout the week with a slight decrease in surf heights as the trades ease slightly by mid-week.

A series of small northwest swells will keep small surf in place along north facing shores through next weekend.

 



World-wide Tropical Cyclone Activity

 

Atlantic Ocean:  There are no active tropical cyclones

Caribbean Sea:  There are no active tropical cyclones

Gulf of Mexico:  There are no active tropical cyclones

Northeastern Pacific:  There are no active tropical cyclones

Here’s the link to the National Hurricane Center (NHC)

North Central Pacific:  There are no active tropical cyclones

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

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:  Powering the Future: Innovative Renewable Energy Projects Around the World

The renewable energy industry has experienced unprecedented growth over the past decade, driven by technological innovation, falling costs, public and private investment and international commitments to reduce greenhouse gas emissions.

Worldwide investment in the low-carbon energy transition topped $2 trillion in 2024, and renewable energy now accounts for 30% of global electricity generation. But nations aren’t investing in renewables just because they’re good for the planet: developing renewable energy capacity can enhance energy security, reduce dependence on fossil fuel imports and create resilient economies.

Take a virtual tour of five remarkable renewable energy projects around the world, each showcasing innovative technology, ambitious scale and a commitment to a cleaner, more sustainable future.

Read More: Columbia Climate School