Glenn James
Hawaii Weather Today
Creator, Author, and Administrator for 30 years

 

The last update to this website was at 538pm Tuesday HST


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

3.15  Mount Waialeale Kauai
1.45  Tunnel RG, Oahu
0.19  Puu Alii, Molokai
0.09  Lanai City, Lanai
1.12  West Wailuaiki, Maui
3.24  Piihonua, Big Island


The following numbers represent the strongest wind gusts (mph) Tuesday evening:

28  Port Allen, Kauai – ENE 
27  Kuaokala, Oahu – NNE
27  Makapulapai, Molokai – E 
23  Lanai 1, Lanai – NE
38  Na Kula, Maui – E
27  Kealakomo, Big Island – NE


Hawaii’s Mountains – Here’s a link to the live webcam on the summit of our tallest mountain Mauna Kea (~13,800 feet high) on the Big Island of Hawaii. Here’s the webcam for the (~10,023 feet high) Haleakala Crater 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

Upper level trough just north…thunderstorms far south 

 

https://cdn.star.nesdis.noaa.gov/GOES18/ABI/SECTOR/hi/GEOCOLOR/20261181810-20261190230-GOES18-ABI-HI-GEOCOLOR-600x600.gif

 Some well developed cumulus clouds associated with an upper trough just north 

 

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 

 

https://www.weather.gov/wwamap/png/hfo.png

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




~~~ Hawaii Weather Narrative ~~~

 

Glenn’s Tuesday comments:  I’m here at my friend Linda’s house, along with my friend Bob, in Corte Madera, Marin County, California, continuing on in my working vacation.

935am Hawaii time, Bob left, and as usual Linda and I are feeling the lack of his great presence. The weather is beautiful today, nice and warm but not the least bit too warm. I still have 6-days left of my time here in CA, before I fly back to Maui next Tuesday morning.

1252pm, Linda and I are here at her place in Corte Madera, on this lovely spring day, with the temperature a mild mannered 74 degrees. I’m still feeling a bit of sadness about Bob leaving, as we had such fun together here in Marin, and up in Bend, Oregon, and that week in Vancouver, British Columbia.

 

>>> Highest Temperature Tuesday, April 28, 2026 – 108 degrees at Rio Grande Village, TX
>>> Lowest Temperature Tuesday, April 28, 2026 – minus 4 degrees near Mackay, ID

 

Hawaii’s Broad Brush Weather Overview…as of Tuesday evening: An upper trough will slide from north of the state to the east through Wednesday before settling northeast of the area. Moderate to fresh trade winds will continue to funnel in clouds and showers that will be enhanced by the upper trough over the next several days.

Weather Details for the Hawaiian Islands…as of Tuesday evening: An upper trough north of Hawaii will dive southeastward through tonight. The trough will form a cutoff low and become stationary around 600 miles northeast of Hawaii through Friday night, before shifting away this weekend.

Meanwhile, moderate to fresh trade winds continue at the surface. Current visible satellite and radar show scattered low clouds and showers over windward Big Island, with isolated shower coverage and partly cloudy skies across the rest of the state. Atmospheric soundings show elevated inversions around 10-11,000 feet.

For the rest of today, expect some build up of leeward clouds, especially on the Big Island. Some instability generated by the cold pool aloft will enhance showers, and bring a slight chance of thunderstorms on the Big Island. Some enhanced showers may carry in on the trade winds impacting other islands this afternoon into Wednesday. Windward showers will see the highest shower activity during the overnight to early morning hours.

The upper low northeast of the islands will keep inversion and cloud heights elevated, allowing periods of showers to continue through the second half of the week. Only subtle day to day changes in island weather patterns are expected. This wet trade wind pattern may linger into the first half of next week, as a shallow cold front and upper level trough approach the islands from the northwest.


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 / Looping Surface Precipitation…through the next 8-days / Vog Map

 

Marine Environmental Conditions…as of Tuesday: Moderate to fresh east-northeast trades will continue tonight before strengthening on Wednesday as a weak trough shifts to the west and a ridge builds north of the state. A Small Craft Advisory (SCA) has been issued for the typically windier waters surrounding Maui County and the Big Island beginning Wednesday morning. The SCA is likely to be extended through at least Friday before a trough approaches from the northwest this weekend, which will lead to a period of more relaxed trade winds.

Offshore buoys continue to show the new northwest swell around or below 1 ft. As a result, surf along north and west facing shores will remain small tonight before a small bump is possible on Wednesday. An upward trend is then expected during the second half of the week as another northwest swell arrives as early as Wednesday night. This swell originates from a storm-force low that tracked into the Bering Sea this past weekend, as confirmed by scatterometry. Therefore, this swell appears more likely to materialize. Looking further ahead, a storm-force low east of Japan will send a moderate, longer-period northwest swell toward the islands for Friday and Saturday, with surf heights potentially approaching advisory levels along exposed north and west facing shores.

Surf along south-facing shores will remain small through much of the week, with mainly background south to southwest swell expected. Another south-southwest pulse may arrive by this weekend from recent activity within our swell window east of New Zealand, providing a small increase in surf.

Surf along east-facing shores will remain relatively small and choppy through midweek, with a slight rise possible Thursday and Friday as trades strengthen.

 

 

Hawaii-Mountains


World-wide Tropical Cyclone Activity


>>> Here’s a link to the latest Pacific Disaster Center’s Weather Wall


>>> 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

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

 

>>> Eastern Pacific: There are no active tropical cyclones

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

>>> 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 Oceans / Arabian Sea: There are no active tropical cyclones



Interesting:  Older and Wiser: How Elder Animals Help Species to Survive

When drought grips the African savanna, an aging elephant matriarch leads her herd to water she remembers from decades past. In the cold Pacific, an older killer whale guides her pod to elusive salmon, sharing her catch when prey runs thin. And over the open ocean, a seasoned albatross traces vast, invisible routes it has refined over years, returning unerringly to feed its chick.

Across land, sea, and sky, these animals deploy memory, skill, and experience accumulated over long lives. So what happens when such older individuals are selectively removed through hunting, fishing, or other human pressures? Researchers say the loss may not be immediately visible, but it is profound: The knowledge that underpins population survival begins to disappear.

For decades, conservation has focused on numbers: how many animals remain in a population. But a growing body of research suggests this lens is too narrow, and that the loss of older animals can reshape populations in ways that simple counts fail to capture. “Not all individuals contribute equally,” says Keller Kopf, a senior lecturer at Charles Darwin University in Australia. “Older animals play roles that are often invisible in simple population counts.”

Read More at: Yale Environment 360