The latest update to this website was at 905pm Tuesday (HST)

 

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

85 – 75  Lihue AP, Kauai
88 – 71  Molokai AP, Molokai
90 – 70  Kahului AP, Maui – Record high 91 Tuesday
85 – 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 Tuesday evening:

0.45  Hanalei, Kauai
1.03  Tunnel RG, Oahu
0.29  Honolimaloo, Molokai
0.04  Lanai City, Lanai
0.51  EMI Baseyard, Maui
0.92  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  Tuesday evening:

25  Port Allen, Kauai
42  Oahu Forest NWR, Oahu
33  Makapulapai, Molokai
35  Lanai 1, Lanai
43  Kealaloloa Rg, Maui
46  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 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

A few high and mid level clouds over the offshore waters

 

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

Localized showers…not many 

 

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 Tuesday 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 53.5 degrees.

Yet another mostly sunny to partly cloudy summer day here in the islands, with the usual gusty trade winds blowing

I played Pickleball down in Haiku, which was very fun…as I say each time.

Weather Wit of the day:  Isobar – An Air conditioned saloon

>>> Kuu Home o Kahaluu – Olomana

>>> Highest Temperature Tuesday, July 15, 2025 – 122 at Stovepipe, CA
>>> Lowest Temperature Tuesday, July 15, 2025 – 32 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 far northeast of the state through the week, before shifting westward over the weekend into early next week. Moderate to locally breezy trade winds will persist through the forecast period.

Stable conditions will build over the state with best chances of rainfall along windward and mountain areas, especially during the overnight hours. There may be a slight increase in shower activity as early as Thursday night into the weekend, as a upper level disturbance moves over the islands.

Hawaii’s Weather Details: A surface high pressure system far northeast of the state is generating moderate to locally breezy trade winds. Satellite and radar imagery shows clouds and showers focusing along windward areas. There have been some clouds and showers building over and along the kona slopes of the Big Island, as sea breezes developed.

As the evening into the night progresses, expect clouds and showers to diminish along the kona slopes, and to increase over the windward and mountain areas. This typical diurnal trade wind pattern is expected to repeat each day through the forecast period, as the high pressure system remains anchored far northeast of the state.

As early as late Thursday into the weekend, windward clouds and shower activity may see a slight increase, as an upper level low develops northwest of Kauai, and low level moisture is carried our way. In addition, a few showers may move over to leeward areas at time along the smaller islands, as inversion heights increase, especially during the overnight and early morning hours.

Confidence in these shower trends remain moderate at this time, as the strength of the upper low is currently projected to be on the weaker side. Details will become more clear later this week, as the time period grows closer, and as confidence on island by island shower trends improve.

Fire weather:  Trade winds will remain in the moderate to locally breezy range through the forecast period. Weather conditions will become more dry and stable over the next couple of days. Showers may increase as early as Thursday night into the weekend, as an upper level disturbance moves over the island chain and low level moisture increases.

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. Trades should gradually strengthen. A Small Craft Advisory (SCA) is in effect for the typical windy areas around Maui County and the Big Island. Fresh to locally strong trades will likely persist through most of the week, although we could see winds drop below SCA criteria as a weak trough develops over the western end of the state into the weekend.

Surf along south facing shores should see a small boost over the next few days, due to a pair of south and south-southeast swells. A long-period south swell should peak near summer averages. As this swell declines a reinforcing swell from the south- southeast should fill in later today into 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 rough and choppy with surf heights getting a slight increase as the trades strengthen. Surf along north facing shores will continue to decline through Wednesday.

 



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 and north-central Gulf:

Invest 93L

Surface observations indicate that a broad area of low pressure continues to move westward across the Florida Panhandle and is producing disorganized shower and thunderstorm activity mainly south of its center. This system is forecast to continue moving westward, and could emerge or redevelop over the far northeastern to north-central portion of the Gulf, reaching the coast of Louisiana by Thursday.

If this system moves far enough offshore, environmental conditions over the Gulf appear generally favorable for additional development, and a tropical depression could still form over the next couple of days before the system moves fully inland by the end of the week.

Regardless of development, heavy rainfall could produce localized flash flooding over portions of Florida through through today. Heavy rainfall could also cause flash flooding for portions of the north-central Gulf Coast beginning late today and continuing through Friday.

* Formation chance through 48 hours…medium…40 percent
* Formation chance through 7 days…medium…40 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 08W…is located approximately 56 NM south-southeast of Misawa, Japan – Final Warning

https://www.metoc.navy.mil/jtwc/products/wp0825.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:  Time to Throw Away the Plastics in Your Kitchen?



Plastic containers and utensils are staples in many kitchens—but could they be affecting your health?

Plastics, often seen as a single material, are actually made from many different polymers, each with a unique chemical makeup. They contain different chemical additives like dyes, plasticizers, and flame retardants. As these plastics interact with microbes and environmental chemicals, the risk to human health becomes more complex.

University of Rochester researchers are at the forefront of efforts to understand the complex role that plastics play in human health. They include Katrina Korfmacher, the codirector of the Lake Ontario MicroPlastics Center (LOMP) and a professor of environmental medicine, a collaboration between the University and Rochester Institute of Technology (RIT), and Jane van Dis, an assistant professor of obstetrics and gynecology at the Medical Center.

Read more at: University of Rochester