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

 

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

83 – 72  Lihue AP, Kauai
83 – 71  Molokai AP, Molokai
87 – 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 morning:

2.55  Mount Waialeale, Kauai
1.60  Tunnel RG, Oahu
1.12  Honolimaloo, Molokai
0.00  Lanai
1.96  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 morning:

30  Lihue, Kauai
31  Oahu Forest NWR, Oahu
29  Makapulapai, Molokai
30  Lanai 1, Lanai
40  Na Kula, Maui
39  Puuloa, 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.

Weather Wit of the day:  Dim Sun – Chinese Weather

>>> Highest Temperature Tuesday, June 24, 2025 – 107 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:  Breezy trade winds will continue. Expect enhanced shower activity through the rest of today, trending drier thereafter for the latter part of the week. While conditions begin to trend drier, light, embedded showers will persist predominately across windward and mountain areas.

Hawaii’s Weather Details: High pressure remains active well northeast of the islands, maintaining breezy trades through the next several days. Look for passing clouds and showers to be embedded within the trades, predominately impacting windward areas, though stray showers may linger for leeward areas.

Meanwhile, a weak upper-level trough in the vicinity of the islands will maintain its presence through the day, before exiting to the north, resulting in some weak instability particularly near Kauai. During this time, shower activity will be enhanced and periods of moderate rainfall can be expected.

Model guidance is in fair agreement, showing upper-level ridging developing east of the islands, as the aforementioned trough exits the area. While conditions will begin to trend drier across most of the state, lingering instability may enhance shower activity at times across the islands, despite overall impacts remaining relatively insignificant. Otherwise, expect moderate to locally breezy trades to continue, which may facilitate light, embedded showers to windward areas.

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 96 NM south of Yokosuka, Japan

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

Tropical Cyclone 03W…is located approximately 217 NM south-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