The latest update to this website was at 630pm Wednesday (HST)

 

Here are the highest temperatures Wednesday…and the lowest Wednesday morning:

81 – 73  Lihue AP, Kauai
86 – 73  Molokai AP, Molokai
86 – 70  Kahului AP, Maui
85 – 73  Kona AP, Big Island
81 – 69  Hilo, AP, Big Island

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

1.21  Mount Waialeale, Kauai
0.75  Moanalua RG, Oahu
0.38  Honolimaloo, Molokai
0.39  Lanai
0.88  West Wailuaiki, Maui
1.04  Honaunau, 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)

The following numbers represent the strongest wind gusts (mph) as of Wednesday evening:

29  Port Allen, Kauai
37  Oahu Forest NWR, Oahu
29  Molokai AP, Molokai
30  Lanai 1, Lanai
32  Kealaloloa RG, Maui
33  Hokuloa, 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 

 Thunderstorms far south in the deeper tropics…weakening Hurricane Flossie is located far east near Mexico


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 and middle level clouds mostly to the north 

 

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 Wednesday comments:  I’m home here in upper Kula, Maui, Hawaii.

It’s mostly clear here in Maui County this morning…with a few clouds locally.  The low temperature at my place was 53.5 degrees.

As the morning progressed, the clouds increased rather remarkably…although most of the associated showers fell along the windward sides, and on into part of the central valley here on Maui.

We had a few light showers here in upper Kula, with more clouds around here on Maui than usual.

630pm, looking out over Maui early this evening, I see light showers falling in several directions, even down in the central valley, or somewhere between here and there, here being in upper Kula. I still have a light shower falling, with a temperature of 66.3 degrees.

Weather Wit of the day:  Mean Rainfall – If it rains on your Easter Parade

>>> Highest Temperature Wednesday, July 2, 2025 – 110 at Needles, California
>>> Lowest Temperature Wednesday, July 2, 2025 – 33 at Leadville, Colorado

 

Hawaii’s Broad Brush Weather Overview:  Moderate to breezy trade winds will continue through the week, then strengthen to breezy to locally windy by early next week. Conditions remain mostly dry, with clouds and showers focused over mainly windward and mountain areas during the overnight and early morning hours.

Hawaii’s Weather Details: Moderate to locally breezy trades have developed across the state as high pressure builds far northeast of the area. Mostly dry conditions continue with pockets of clouds and showers moving into windward areas at times. An incoming batch of moisture will impact windward Big Island and Maui, but rainfall amounts should remain light. Otherwise, expect mostly clear to partly cloudy skies and passing showers under stable conditions.

Trades will strengthen further over the weekend, becoming breezy to locally windy by early next week, as high pressure continues to build north of the islands, and a drier airmass moves into the area. The combination of drier conditions with stronger trades could bring elevated fire weather concerns. While this is still several days out, and confidence remains low at the moment, conditions will be monitored leading up to the weekend and into next week.

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

https://www.weather.gov/images/hfo/graphics/npac.gif

 

Hawaii’s Marine Environment:  A weak trough to the north of the state will maintain gentle to locally fresh easterly trade winds across the state through Thursday. High pressure far north of the state will strengthen Friday into the weekend, with fresh to locally strong trade winds expected by Saturday. Winds are expected to further strengthen early next week with widespread strong trade winds possible. A Small Craft Advisory (SCA) could return as early as Thursday, but more likely on Friday for the windier waters and channels around Maui County and the Big Island.

The current south swell has peaked and will slowly decline through the rest of the week. Surf heights should still hold near the summer time average until around Thursday, before dropping Friday into the weekend.

Along east facing shores, surf will continue to remain smaller than average due to the lack of strong trades. An increase of rough and choppy surf is expected this weekend into next week as the trade winds strengthen. No significant swells are expected through the next week.

 



World-wide Tropical Cyclone Activity

 

Atlantic Ocean:  There are no active tropical cyclones

Near the southeastern U.S.  

>>> An area of low pressure could develop along a weakening frontal boundary near Florida or the Atlantic coast of the southeastern United States by this weekend. Environmental conditions appear only marginally conducive for some slow development, but a tropical or subtropical depression could form in this region over the weekend or early next week while the system drifts northward or northeastward. Regardless of development, heavy rainfall is possible across portions of the southeast U.S., particularly across the west-central Florida coast.

* Formation chance through 48 hours…low…near 0 percent
* Formation chance through 7 days…medium…40 percent

Caribbean Sea:  There are no active tropical cyclone

Gulf of America:  There are no active tropical cyclone

 

Northeastern Pacific:   

Tropical Cyclone 06E (Flossie)…is located about 215 south of Cabo San Lucas, Mexico

FLOSSIE RAPIDLY WEAKENING AS IT PASSES SOUTH OF BAJA CALIFORNIA SUR

According to the NHC advisory number 16

Flossie is moving toward the northwest near 8 mph, and this general motion is expected to continue during the next couple of days. Maximum sustained winds are near 75 mph with higher gusts. Rapid weakening is expected during the next day or so, with the system forecast to become a post-tropical cyclone late Thursday. Hurricane-force winds extend outward up to 25 miles from the center and tropical-storm-force winds extend outward up to 70 miles.

South of Gulf of Tehuantepec:

>>> An area of disturbed weather associated with a tropical wave is producing disorganized showers and thunderstorms several hundred miles south of the Gulf of Tehuantepec. Environmental conditions appear conducive for some gradual development of this system during the next few days, and a tropical depression is likely to form over
the weekend or early next week while it moves generally west-northwestward.

* Formation chance through 48 hours…low…20 percent
* Formation chance through 7 days…high…70 percent

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

 

North Central Pacific:  There are no active tropical cyclones

Tropical cyclone formation is not expected during the next 7-days.

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: 

Tropical Cyclone 04W (Mun)…is located approximately 577 NM south-southeast of Yokosuka, Japan

https://www.metoc.navy.mil/jtwc/products/wp0425.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:  Fire Smoke Exposure May Alter the Immune System, Even in Healthy Individuals

Exposure to fire smoke—which can be composed of particulate matter, gases, materials from buildings such as perfluoroalkyl and polyfluoroalkyl substances (PFAS), toxic metals, and carcinogenic compounds—may alter the immune system on a cellular level, according to a new study led by researchers at Harvard T.H. Chan School of Public Health. The study is the first to examine the specific cellular changes associated with fire smoke exposure, documenting how smoke can damage the body through the immune system.

“We’ve known that smoke exposure causes poor respiratory, cardiac, neurological, and pregnancy outcomes, but we haven’t understood how,” said corresponding author Kari Nadeau, John Rock Professor of Climate and Population Studies and chair of the Department of Environmental Health. “Our study fills in this knowledge gap, so that clinicians and public health leaders are better equipped to respond to the growing threat of difficult to contain, toxic wildfires.”

The study was published in Nature Medicine.

Read more at Harvard T.H. Chan School of Public Health