The latest update to this website was at 837am Monday (HST)

 

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

86 – 76  Lihue AP, Kauai
88 – 73  Molokai AP, Molokai
89 – 72  Kahului AP, Maui
86 – 76  Kona AP, Big Island
84 – 68  Hilo, AP, Big Island

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

0.75  Mount Waialeale, Kauai
0.11  Kahana, Oahu
0.02  Honolimaloo, Molokai
0.00  Lanai
0.13  West Wailuaiki Maui
0.06 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 morning:

21  Port Allen, Kauai
24  Oahu Forest NWR, Oahu
29  Makapulapai, Molokai
16  Lanai 1, Lanai
35  Kealaloloa Rg, Maui
36  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 

 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 to the north

 

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.

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:  A high pressure system will remain in place north of the Hawaiian Islands through next weekend, keeping moderate to locally breezy trade winds into the extended range forecast.

Fairly stable conditions will swiftly change, as a disturbance passes westward through the islands later today, tonight and tomorrow, briefly increasing shower activity over all islands.

More stable conditions with limited shower activity will return late Tuesday through early Friday. Another upper level disturbance moves over the islands, producing a slight increase in shower activity from Friday afternoon into the weekend.

Hawaii’s Weather Details: A high pressure ridge will remain in place north of the Hawaiian Islands through the week. This means moderate to locally breezy trade winds for the foreseeable future. The strongest winds this week will likely develop from Tuesday through Wednesday. The main weather variable in the forecast will be slight changes to the cloud cover and shower pattern this week and over the weekend.

Satellite imagery shows an easterly wave (trough) swiftly moving westward towards the Big Island. Upper air balloon soundings from Lihue and Hilo show very stable temperature inversion heights hovering around the 5,500 foot elevation level. This inversion height will lift rather quickly into the 8,000 to 10,000 foot range as the trough moves into Maui and the Big Island later this afternoon. Cloud tops will deepen and shower activity will increase as a result of increasing instability associated with this trough moving through each island.

The timing of these increasing shower trends will vary island by island, the Big Island and Maui will start to see increasing showers later this afternoon, Lanai and Molokai will see increasing showers by this evening, with Oahu and Kauai picking up enhanced showers through the overnight and Tuesday morning hours. This increase in shower activity will be brief as a mid level ridge will build in quickly, stabilizing the atmosphere and decreasing showers, as the trough exits to the west.

Drier and more stable conditions will return from late Tuesday into early Friday, as high pressure will keep a subsidence cap on vertical cloud development. Shower activity will remain isolated over windward mountains during the day time periods, becoming scattered coverage in the overnight to early morning hours. Any 12 hour overnight rainfall amounts will likely be on the light side due to the strong stability.

Subtle changes in the island cloud and shower pattern will become less stable by late Friday into the weekend, as a weak upper level low brings some instability across the area. A slight increase in showers are anticipated mainly during the overnight to early morning hours favoring the windward mountain areas. Confidence in these showers are only moderate at this time, as the strength of the upper low is currently projected to be on the weaker side. Details will become clearer later this week, as the time period grows closer.

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 into Tuesday, the atmosphere will remain rather dry through Friday.

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 the east coast of Florida is producing disorganized showers and thunderstorms this morning. 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. Regardless of development, heavy rainfall could produce localized flash flooding over portions of Florida and the north-central Gulf coast through the middle to latter portion of this week.

* Formation chance through 48 hours…low…10 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 733 NM southeast of Misawa, Japan

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