The latest update to this website was at 555am Wednesday (HST)

 

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

84 – 73  Lihue AP, Kauai
82 – 72  Molokai AP, Molokai
86 – 73  Kahului AP, Maui
86 – 74  Kona AP, Big Island
84 – 73  Hilo, AP, Big Island

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

0.65  Mount Waialeale, Kauai
0.15  Lyon, Oahu
0.22  Puu Alii, Molokai
0.00  Lanai
0.46  West Wailuaiki, Maui
0.82  Kawainui Stream, 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:

23  Puu Lua, Kauai
38  Oahu Forest NWR, Oahu
28  Makapulapai, Molokai
18  Lanai 1, Lanai
43  Na Kula, Maui
48  Puuloa, Big Island

Hawaii’s MountainsHere’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 


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 level clouds will remain out of the picture for the time being

 

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 to partly cloudy here in Maui County this morning….with some cloudy areas.  The low temperature at my place was 51.5 degrees.

Weather Wit of the day:  Windjammer – A person who spreads jelly on bread during a gale

>>>  Olomana – Seabird

>>> Highest Temperature Tuesday, July 8, 2025 – 119 at Stovepipe Wells, CA
>>> Lowest Temperature Wednesday, July 9, 2025 – 27 Peter Sinks, Utah

 

Hawaii’s Broad Brush Weather Overview:  An area of strong high pressure will begin to weaken and lift northeast of the islands today. Trades will weaken slightly as a result of the eased pressure gradient. Expect passing showers within fairly stable clouds, leading up to more typical trade shower activity for windward and mountain areas for the remainder of the week.

Hawaii’s Weather Details: Strong high pressure responsible for maintaining breezy to strong trades will begin to weaken and lift northeastward. As a result, trades will slightly weaken through the remainder of the week. While trends are showing weakening, brief periods of stronger winds may still remain in wind-prone locations. However, latest observations, including across the summits, have begun to show this decrease, as overall trades are expected to be moderate to locally breezy beginning today.

As trades weaken, fire concerns will also be on the decline. Expect humidity levels to rebound back above criteria levels. While conditions are not favorable for fire concerns, it is worth noting that any unintentional spark could lead to a fire and we should remain vigilant when outdoors during this transition period.

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 far northeast of the islands will support fresh to strong trades across the area. A Small Craft Advisory (SCA) is now in effect for all Hawaiian coastal waters. The surface high will move eastward and weaken slightly during the second half of the week, but winds are likely to remain breezy to locally strong in the windier channels and waters of Maui County and the Big Island through the rest of the week. A SCA is in effect through 6am Thursday for the typical windier waters around Maui and the Big Island.

A small mid-period south swell will continue through Thursday. A slight boost to the period is expected on Saturday. Another small, long-period swell is expected Sunday night into next Monday. Surf along south facing shores will boost along with the arrival of the mentioned swells. Surf along east-facing shores will be rough and choppy due to the breezy trade winds that will persist the rest of the week.

 



World-wide Tropical Cyclone Activity

 

Atlantic Ocean:  There are no active tropical cyclone

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

Caribbean Sea:  There are no active tropical cyclone

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

Gulf of America:  There are no active tropical cyclone

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

Northeastern Pacific: There are no active tropical cyclone

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

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 05W (Danas)…is located approximately 168 NM north of Taipei, Taiwan – Final Warning

https://www.metoc.navy.mil/jtwc/products/wp0525.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:  University of Houston Engineer Creates a Possible Replacement for Plastic

Improved bacterial cellulose could lead to stronger, eco-friendly materials for everyday use.In a world overrun with plastic garbage, causing untold environmental woes, University of Houston assistant professor of mechanical and aerospace engineering, Maksud Rahman, has developed a way to turn bacterial cellulose – a biodegradable material – into a multi-functional material with the potential to replace plastic.Yes, it has the potential to become your next disposable water bottle, and so much more, like packaging material or even wound dressings – all made from one of the Earth’s abundant and biodegradable biopolymers: bacterial cellulose.

“We envision these strong, multi-functional and eco-friendly bacterial cellulose sheets becoming ubiquitous, replacing plastics in various industries and helping mitigate environmental damage,” said Rahman, who is reporting his work in Nature Communications.

Read more at University of Houston

Image: University of Houston assistant professor of mechanical and aerospace engineering, Maksud Rahman, has developed a way to turn bacterial cellulose – a biodegradable material – into a multi-functional material with the potential to replace plastic.