The latest update to this website was at 955am Tuesday (HST)

 

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

0.66  Mana, Kauai
0.31  Kalahee Ridge, Oahu
0.12  Puu Alii, Molokai
0.13  Lanai 1, Lanai
1.37  Puu Kukui, Maui
3.42  Pali 2, Big Island 

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

08  Port Allen, Kauai – NE
15  Kii, Oahu – NW
07  Makaena, Molokai – NE
06  Lanai 1,  Lanai – ENE
28  Nene Nest, Maui – SW
24  Moana Loa Obs, 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/GOES18/ABI/SECTOR/tpw/13/GOES18-TPW-13-900x540.gif

Variable clouds with a trough of low pressure still over the state

 

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

Clouds moving into the state from the west 

 

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 

 

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 home in upper Kula, Maui

526am Monday morning, there’s no wind, variably cloudy skies here at my place, with the low temperature a relative warm 60.5 degrees, along with the relative humidity 81%.

 

>>> Highest Temperature Monday, March 16, 2026 – 99 degrees near North Shore, CA
>>> Lowest Temperature Tuesday, March 17, 2026 – minus 22 degrees at Lutsen, MN

 

Hawaii’s Broad Brush Weather Overview…as of 955am Tuesday: Cloudy skies with generally light winds and periods of showers will persist through mid-week. Although widespread heavy rain is not expected during this time, deep tropical moisture will remain in place, particularly over the eastern end of the state.

Conditions are expected to deteriorate again by Friday as another upper-level disturbance and surface low approach from the west, bringing increasing chances for widespread rainfall and moderate kona winds. With soils already saturated from this past weekend, additional rainfall could quickly lead to runoff and flooding impacts.

Short Term Update…as of 952am:  An area of light showers was moving ENE over the Kauai Channel, and there were also a few showers over Maui. Scattered showers are forecast to continue today, most numerous over the eastern islands. Rainfall amounts will be low to perhaps moderate. Otherwise, expect mostly cloudy skies and relatively light winds, generally 5-15 mph.

Hawaii’s Weather Details…as of 305am Tuesday:  In the wake of the significant kona low that impacted the state over the past several days, a broad and persistent upper-level trough remains anchored over the area. While the kona low has weakened and lifted away, the larger-scale pattern remains largely unchanged, with deep tropical moisture continuing to stream northward over portions of the state. Precipitable water values remain anomalously high, maintaining a moist air mass across the region.

Model guidance continues to indicate a relative decrease in widespread heavy rainfall through the next couple of days, particularly over the western end of the state. However, this should not be interpreted as a return to benign conditions. Periods of showers will persist, with the best chances expected across Maui County and the Big Island, where the axis of deepest moisture is forecast to remain focused through mid-week.

By the latter half of the week, the upper-level trough is forecast to deepen west of the state. This feature is expected to re-expand the axis of anomalous moisture back across the entire island chain, while increasing large-scale ascent. At the surface, low pressure is forecast to develop and approach the islands, with moderate kona winds returning.

This evolving pattern will support a renewed increase in shower coverage and intensity from late week into the weekend, with model consensus suggesting an additional several inches of rainfall possible over portions of the state during this period. While this next system does not currently appear to be as intense as the recent event, it will impact an already highly saturated environment.

Given the antecedent conditions, including elevated streams and saturated soils, even moderate rainfall rates may quickly lead to runoff issues. The threat for flash flooding will become elevated statewide by Friday, with the potential for more significant impacts persisting through the weekend.

 

Here’s a near real-time Wind Profile of the Pacific Ocean – Zoom Earth – 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…as of 305am Tuesday:  Light and variable winds will prevail through mid-week, with daytime sea breezes and overnight land breezes near the coasts. A brief period of light trades will be possible by mid-week as a weak ridge builds north of the state, followed by light to moderate south winds late in the week, as a new system approaches from the west.

Surf along exposed north and west facing shores are trending up as a fresh north-northwest swell builds down the island chain. This source should peak through Wednesday (overhead to double overhead at peak spots), then ease into the second half of the week, as it shifts out of the north-northeast.

Surf along south shores will trend up through mid-week as a fresh long period south swell arrives. This swell will peak Wednesday through Thursday (head high), then ease into the weekend.

Surf along east facing shores will remain well below average due to the lack of trades locally and upstream. The exception will be for east facing shores exposed to north-northeast swells expected later this week into the weekend.

 

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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: 

Tropical Cyclone 27P…is located approximately 614 NM north of Cairns, Australia

https://www.metoc.navy.mil/jtwc/products/27P_171200sair.jpg

North Indian Ocean:  There are no active tropical cyclones

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:  A study in Stardust: Massive Binary Stars Emit Tiny Carbon Particles

It’s fitting that Yale junior Donglin Wu’s first major scientific journal article as lead author focuses on stardust — tiny solid grains that form from stellar winds, drift into interstellar space, and may eventually become parts of new planets.

Wu has long been in awe of the majesty and mystery of stars. As a kid, in Shanghai, he would stare at the heavens in wonder of what it all meant. He brings that same spirit of curiosity to his studies at Yale, especially in his work with Héctor Arce, a professor of astronomy in the Faculty of Arts and Sciences, and Daisuke Nagai, a professor of physics and astronomy in FAS.

“Astronomy and astrophysics connect to something very romantic,” Wu says. “You look up at the night sky and think about how immense it is. There are so many things that are still unknown — things that are difficult to observe, things that are rare.”

Read More at: Yale University