The latest update to this website was at 905pm Thursday (HST)

 

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

84 – 76  Lihue AP, Kauai
86 – 73  Molokai AP, Molokai
89 – 70  Kahului AP, Maui
84 – 75  Kona AP, Big Island
84 – 69  Hilo, AP, Big Island

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

1.11  Mount Waialeale, Kauai
1.25  Kalawahine, Oahu
0.27  Kamalo, Molokai
0.00  Lanai
0.24  West Wailuaiki, Maui
0.52  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 Thursday evening:

25  Port Allen, Kauai
32  Oahu Forest NWR, Oahu
28  Molokai AP, Molokai
29  Lanai 1, Lanai
28  Kealia Pond, Maui
24  Waikoloa, 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 

 Low pressure west…thunderstorms far 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…a few high clouds arriving from the southwest

 

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

Variable clouds

 

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

Localized showers…not many

 

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

It’s partly cloudy here in Maui County this morning. The low temperature here at my place was 55 degrees.

Good Vibrations…by the Beach Boys

Another carbon copy day of the last several days, with more on tap going forward…very summer-like in all regards.

630pm, looking down into the central valley from here in upper Kula, it looks rather hazy. We have some thin cirrus clouds out towards the west, which could provide some nice color at sunset.

>>> Here’s a very good and short video about clouds.

Weather Wit of the day:  Climatologist – A person who labels a region that’s bitter cold in winter and sizzling hot in summer, a temperate zone

>>> Highest Temperature for Thursday, June 12, 2025 – 114 at Death Valley, CA
>>> Lowest Temperature for Thursday, June 12, 2025 – 29 at Peter Sinks, Utah

 

Hawaii’s Broad Brush Weather Overview:  Breezy trade winds become strong this weekend into next week, carrying limited clouds and showers mainly to windward and mountain areas.

Hawaii’s Weather Details:  High pressure northeast of the state is maintaining moderate to locally strong trades. Satellite and radar imagery show numerous clouds moving westward within the trade wind flow, with embedded light to moderate scattered showers, focusing mainly along windward and mountain areas.

This area of enhanced showers should persist through the morning hours and then dry out in the afternoon. This pattern will repeat again tonight into early Friday morning, but may be a little wetter, especially for the Western half of the state, as the upper level low opens to a trough and slowly sags southeastward, and low level moisture remains slightly above normal. Aloft, the resident subtropical jet stream funnels high clouds across our skies.

The upper level trough is expected to move directly over the islands this weekend and form into a weak upper level low, which will produce some instability across the state. At the same time a surface high will develop north of the state, strengthening the trade wind flow across the state.

This would generally equate to enhance showers, but one limiting factor may be available moisture as drier air filters in from the east within the trade wind flow. Thus, seasonably dry trades could persist this weekend into next week. The best opportunity for showers will be windward and mountain areas mainly during the overnight hours.

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

Weather Analysis and Forecasts

Hawaii’s Marine Environment:  High pressure far northeast of the islands will remain nearly stationary through the remainder of this week, and bring moderate to locally strong trade winds. Another area of high pressure will then build north of the region this weekend, and help to further strengthen the trades. Thus, a Small Craft Advisory for the windier waters and channels around Maui County and the Big Island remains in effect through at least Sunday.

Surf along south facing shores will be tiny, well below average, over the next several days. A small, long period, south swell originating from a fetch near New Zealand, will build late this weekend and help to boost surf heights through early next week.

There will be choppy surf along east facing shores due to the moderate trades. Expect tiny surf along north facing shores, which is typical for this time of year.

 



World-wide Tropical Cyclone Activity

 

Atlantic Ocean:  There are no active tropical cyclones

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

Caribbean Sea:  There are no active tropical cyclones

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

Gulf of America:  There are no active tropical cyclones

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

 

Northeastern Pacific: 

Potential Tropical Cyclone 04E…is located about 390 miles south of Zihuatanejo, Mexico

DISTURBANCE GRADUALLY BECOMING BETTER ORGANIZED…TROPICAL STORM WATCH IN EFFECT FOR THE COAST OF SOUTHWESTERN MEXICO

cone graphic

According to the NHC Advisory number 2A

The system is moving toward the northwest near 7 mph, and this general motion is expected to continue for the next couple of days. A turn toward the west-northwest is forecast by Sunday. Maximum sustained winds are near 35 mph with higher gusts. Strengthening is expected during the next couple of days. The system is forecast to become a tropical storm later today and continue strengthening on Saturday as it moves parallel to the coast of southwestern Mexico.

* Formation chance through 48 hours…high…90 percent
* Formation chance through 7 days…high…90 percent

cone graphic

 

Offshore of Central America and Southern Mexico

>>> An area of low pressure is forecast to develop late this weekend or early next week near the coast of Central America. Environmental conditions appear conducive for some gradual development of this system as it moves west-northwestward near the coasts of Central America and southern Mexico.

* Formation chance through 48 hours…low…near 0 percent
* Formation chance through 7 days…low…30 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: 

Tropical Cyclone 01W (Wutip)…is located approximately 265 NM southeast of Hanoi, Vietnam

https://www.metoc.navy.mil/jtwc/products/wp0125.gif

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:  Window-Sized Device Taps the Air for Safe Drinking Water

MIT engineers developed an atmospheric water harvester that produces fresh water anywhere — even Death Valley, California.

Today, 2.2 billion people in the world lack access to safe drinking water. In the United States, more than 46 million people experience water insecurity, living with either no running water or water that is unsafe to drink. The increasing need for drinking water is stretching traditional resources such as rivers, lakes, and reservoirs.

To improve access to safe and affordable drinking water, MIT engineers are tapping into an unconventional source: the air. The Earth’s atmosphere contains millions of billions of gallons of water in the form of vapor. If this vapor can be efficiently captured and condensed, it could supply clean drinking water in places where traditional water resources are inaccessible.

With that goal in mind, the MIT team has developed and tested a new atmospheric water harvester and shown that it efficiently captures water vapor and produces safe drinking water across a range of relative humidities, including dry desert air.

Read more at Massachusetts Institute of Technology

Image: A close-up of a new origami-inspired hydrogel material, designed by MIT engineers, that swells to absorb water from the air. When water condenses out of the material to be collected, the individual hydrogel spheres shrink back down to capture more moisture.