The latest update to this website was at 415pm Sunday (HST)

 

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

82 – 75  Lihue AP, Kauai
87 – 75  Honolulu, AP
83 – 70  Molokai AP, Molokai
86 – 71  Kahului AP, Maui
84 – 72  Kona AP, Big Island
81 – 68  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 (the map is clickable to zoom in closer)

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

0.56  Kilohana, Kauai
0.52  Schofield East, Oahu
0.15  Puu Alii, Molokai
0.00  Lanai
0.66  West Wailuaiki, Maui
0.42  Pahoa, Big Island

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

24  Port Allen, Kauai
35  Kuaokala, Oahu
33  Makapulapai, Molokai
30  Lanai 1, Lanai
56  Na Kula, Maui
46  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.

Mid-afternoon here in upper Kula remains sunny and warm to very warm for the season.

(From the NWS forecast office in Honolulu – Tina Stall) 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 Moms!

 

Hawaii’s Broad Brush Weather Overview:  High pressure far to the northeast will generate breezy trade winds with mainly windward and mountain showers. An upper level low moving across the state could increase shower coverage and intensity Thursday through next weekend

Hawaii’s Weather Details:  High pressure far northeast of Hawaii will drive breezy trade winds through the next week, with slight variations in strength and direction through the week. Cumulus clouds and scattered showers will move across the state pushed along by the trades, focusing mostly over windward and mountain sides of the islands. Isolated showers will pass over leeward areas of the smaller islands at times, but will not linger long.

Most showers will fall during the overnight and early morning time frames, except for Big Island which will receive most of the showers during the afternoon. Overall rainfall amounts will be insignificant through mid-week. An upper low moving across the state could increase shower coverage and intensity Thursday through next weekend, with a similar distribution across mostly the windward and mountain areas.

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 in the new 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:  

Tropical Cyclone 32P…is located approximately 463 NM east-northeast of Darwin, Australia

https://www.metoc.navy.mil/jtwc/products/sh3225.gif

https://www.metoc.navy.mil/jtwc/products/32P_111800sair.jpg

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

 

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