The latest update to this website was at 337pm Monday (HST)

 

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

85 – 76  Lihue AP, Kauai
85 – 73  Molokai AP, Molokai
87 – 72  Kahului AP, Maui
86 – 76  Kona AP, Big Island
85 – 68  Hilo, AP, Big Island

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

0.49  Mount Waialeale, Kauai
0.03  Kahana, Oahu
0.03  Honolimaloo, Molokai
0.00  Lanai
0.16  West Wailuaiki Maui
0.12 Kawainui Stream, Big Island

>>> There are lots of locations that measure rainfall and winds, 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  Monday afternoon:

25  Port Allen, Kauai
29  Kuaokala, Oahu
33  Molokai AP, Molokai
21  Lanai 1, Lanai
40  Na Kula, Maui
30  South Point, 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 

 Thunderstorm clusters forming at times well 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 and mid level clouds over the offshore waters

 

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

Localized showers…very few 

 

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

It’s mostly clear here in Maui County early this morning.  The low temperature at my place was 52.5 degrees.

1108am, it’s still sunny down by the ocean, although as usual, clouds are collecting over and around the mountains late this morning.

Weather Wit of the day:  Beach Overexposure – The wages of sun

>>> Over the Rainbow – Israel Kamakawiwoole

>>> Highest Temperature Sunday, July 13, 2025 – 121 at Badwater Basin, CA
>>> Lowest Temperature Monday, July 14, 2025 – 31 Peter sinks, Utah

>>> An Article well worth reading…The Texas Flash Flood Is a Preview of the Chaos to Come

 

Hawaii’s Broad Brush Weather Overview:  High pressure will remain far north-northeast of the area this week. A weak surface trough will move through the islands and bring an increase in showers through Tuesday morning. Dry, stable weather is expected Tuesday through Friday. A broad, weak upper level low will set up over and north of the islands by late Friday, bringing increasing trade wind showers.

Hawaii’s Weather Details: A strong high is centered far north-northeast of Hawaii, generating moderate to fresh trade winds. A weak surface trough moving onto the island chain from the east, is causing a brief weakness in the wind flow and is expected to bring a round of showers mainly to windward areas overnight. The trough extends vertically past 10,000 feet,  which could result in some moderate intensity trade wind showers, and possibly bring a few to leeward sides as well.

Showers may linger around Kauai Tuesday morning as the trough weakens, but overall expect a drier and more stable environment and strengthening wind speeds Tuesday. Little change is expected to forecast Tuesday through Friday, with any incoming clouds and showers impacting windward slopes occurring mainly at night.

A broad, weak upper level low pressure system will set up over and north of the islands by late Friday. A slight increase in shower trends are anticipated mainly during the overnight to early morning hours, favoring the windward and mountain areas through the weekend.

Fire weather:  Trade winds will remain in the moderate to locally breezy range into the upcoming weekend. Aside from a period of higher humidity and an increase in shower activity through Tuesday, the atmosphere will remain rather dry through the rest pf 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:  A ridge of high pressure will remain far north of the state throughout the week. Moderate to fresh trades will likely continue, strengthening to locally strong speeds from Tuesday onward, as a weak trough exits the area. A Small Craft Advisory should return to our typically windy waters around Maui County and the Big Island by Tuesday evening.

Surf along south facing shores should see a modest increase over the next few days, due to a pair of south and south-southeast swells. A long-period south swell should fill in and peak on Tuesday near summer averages. As this swell declines a reinforcing swell from the south-southeast should fill in Tuesday or Wednesday. This should maintain surf heights through the middle of the week. Surf should gradually decline Thursday into Friday, but another small increase is expected into the weekend, as a new long-period southwest swell arrives from the Tasman Sea.

Surf along east facing shores will continue to remain choppy, with surf heights below average due to the lack of strong trades locally and upstream of the state. A slight increase is expected towards the middle of the week as the trades strengthen. A tiny northwest swell could produce some surf along north facing shores into Tuesday.

 



World-wide Tropical Cyclone Activity

 

Atlantic Ocean:  There are no active tropical cyclone

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

Northeastern Gulf:

An area of low pressure located offshore of the east coast of Florida is producing disorganized showers and thunderstorms. This disturbance is forecast to move westward across Florida during the next day or so, and into the northeastern Gulf by late Tuesday. Environmental conditions appear favorable and some gradual development of this system is possible while it moves westward to west-northwestward across the northeastern and north-central portions of the Gulf during the middle to latter part of this week.

* Formation chance through 48 hours…low…20 percent
* Formation chance through 7 days…low…30 percent

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 06W (Nari)…is located approximately 166 NM northeast of Misawa, Japan – Final Warning

https://www.metoc.navy.mil/jtwc/products/wp0625.gif

Tropical Cyclone 07W…is located approximately 60 NM east-southeast of Sasebo, Japan – Final Warning

https://www.metoc.navy.mil/jtwc/products/wp0725.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:  Grasshopper Size Changes Suggest How to Predict Winners and Losers Under Climate Change



As insect populations decrease worldwide — in what some have called an “insect apocalypse” — biologists seek to understand how the six-legged creatures are responding to a warming world and to predict the long-term winners and losers.

A new study of grasshoppers in the mountains of Colorado shows that, while the answers are complicated, biologists have much of the knowledge they need to make these predictions and prepare for the consequences. The study, published Jan. 30 in PLOS Biology, compares thousands of grasshoppers collected in Colorado between 1958 and 1960 with modern-day specimens.

“Understanding what species are likely to be winners and losers with climate change has been really challenging so far,” said corresponding author Lauren Buckley, a professor of biology at the University of Washington. “Hopefully this work starts to demonstrate some principles by which we can improve predictions and figure out how to appropriately respond to ecosystem changes stemming from climate change.”

Read more at University of Washington