The latest update to this website was at 530pm Wednesday (HST)

 

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

84 – 72  Lihue AP, Kauai
83 – 71  Molokai AP, Molokai
89 – 72  Kahului AP, Maui
86 – 74  Kona AP, Big Island
84 – 70  Hilo, AP, Big Island

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

3.29  Mount Waialeale, Kauai
1.61  Tunnel RG, Oahu
1.12  Honolimaloo, Molokai
0.33  Lanai AP, Lanai
1.95  West Wailuaiki, Maui
1.49  Pahoa, 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:

25  Port Allen, Kauai
31  Kuaokala, Oahu
33  Molokai AP, Molokai
30  Lanai 1, Lanai
45  Na Kula, Maui
32  Keamuku, 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 southwest


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 cirrus clouds arriving from the southwest

 

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 partly cloudy here in Maui County this morning…with some cloudy areas locally.  The low temperature at my place was 55.5 degrees.

433pm, another sunny day here on Maui, with a mix of high and lower level clouds…and dry for the most part.

Weather Wit of the day:  Dim Sun – Chinese Weather

>>> Highest Temperature Wednesday, June 25, 2025 – 113 at Death Valley, California
>>> Lowest Temperature Wednesday, June 25, 2025 – 22 at 14 miles west-southwest of Mackay, Idaho

 

Hawaii’s Broad Brush Weather Overview:  The forecast will trend drier for the rest of this week, as a weak disturbance aloft lifts away from the state and ridging builds into the region. However, occasional pockets of moisture embedded within moderate to locally breezy trade winds will continue to produce mainly windward showers for the next several days. Trade wind speeds could decrease even further early next week, as an overall drier trade wind pattern continues.

Hawaii’s Weather Details:  Satellite and radar imagery shows that the enhanced showers and extensive cloud cover earlier have largely diminished. This increase in showers resulted from instability as a weak disturbance aloft, approached from the east and moved into the island chain.

That weak disturbance aloft is now lifting away from the main Hawaiian Islands as drier, more stable air settles into the area. Meanwhile, surface high pressure centered far northeast of the state remains nearly stationary, maintaining breezy easterly trade wind flow across the island chain.

Tonight through the next several days, upper-level ridging will build into the region from the east, as the surface high to our northeast remains nearly stationary but weakens slightly. This will result in a slight decrease in trade wind speeds, with prevailing trades in the moderate to locally breezy category.

While conditions will begin to trend drier, some lingering instability and pockets of moisture embedded within the trade wind flow will still support typical windward and mountain showers, especially during the overnight through early morning hours each day.

Early next week, relatively little change is expected as the surface high to the far northeast continues to weaken, and moves farther eastward away from the Hawaiian Islands. This will weaken the trades even more for the first half of the work 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:  High pressure northeast of the state will generate moderate to locally strong trade winds for the next several days. A weather disturbance passing well north of the area late this weekend should help to ease the pressure gradient, allowing the trades to gradually ease into early next week. The Small Craft Advisory for the windier waters of Maui County and the Big Island has been extended, and may need to be extended further, though conditions appear borderline.

Nearshore buoys continue to indicate a medium period, south swell passing through the local waters. This would equate to above average surf along south facing shores, though just shy of High Surf Advisory criteria. This swell should gradually fade through Thursday, leaving behind background energy in its wake. A smaller, long period, south swell is modeled to arrive early next week.

Surf along east shores remains rough due to breezy trades expected the next several days. Surf along north shores remains tiny.

Peak high tides associated with the lunar cycle will cause minor coastal flooding along shorelines and low lying coastal areas through Thursday. The Coastal Flood Statement remains in effect for the daily peak tide each afternoon and may be exacerbated by the current south swell.

 



World-wide Tropical Cyclone Activity

 

Atlantic Ocean:  There are no active tropical cyclones

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:   There are no active tropical cyclones

Offshore of Central America and Southern Mexico:

Invest 95E

>>> Showers and thunderstorms associated with an area of low pressure located a few hundred miles south of the coast of Guatemala have changed little overnight. Environmental conditions appear conducive for gradual development of this system during the next few days, and a tropical depression or tropical storm is likely to form by late this weekend while the system moves slowly west-northwestward, off the coast of southern Mexico.

* Formation chance through 48 hours…medium…40 percent
* Formation chance through 7 days…high…80 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 02W (Sepat)…is located approximately 86 NM east-northeast of Yokosuka, Japan

https://www.metoc.navy.mil/jtwc/products/wp0225.gif

Tropical Cyclone 03W…is located approximately 236 NM west-southwest of Hong Kong

https://www.metoc.navy.mil/jtwc/products/wp0325.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:  Island Rivers Carve Passageways Through Coral Reefs

Volcanic islands, such as the islands of Hawaii and the Caribbean, are surrounded by coral reefs that encircle an island in a labyrinthine, living ring. A coral reef is punctured at points by reef passes — wide channels that cut through the coral and serve as conduits for ocean water and nutrients to filter in and out. These watery passageways provide circulation throughout a reef, helping to maintain the health of corals by flushing out freshwater and transporting key nutrients.

Now, MIT scientists have found that reef passes are shaped by island rivers. In a study appearing today in the journal Geophysical Research Letters, the team shows that the locations of reef passes along coral reefs line up with where rivers funnel out from an island’s coast.

Their findings provide the first quantitative evidence of rivers forming reef passes. Scientists and explorers had speculated that this may be the case: Where a river on a volcanic island meets the coast, the freshwater and sediment it carries flows toward the reef, where a strong enough flow can tunnel into the surrounding coral. This idea has been proposed from time to time but never quantitatively tested, until now.

Read More: Massachusetts Institute of Technology