The latest update to this website was at 6am Sunday (HST)

 

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

83 – 72  Lihue AP, Kauai
85 – 72  Molokai AP, Molokai
87 – 66  Kahului AP, Maui
87 – 74  Kona AP, Big Island
82 – 69  Hilo, AP, Big Island

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

1.67  Mount Waialeale, Kauai
1.14  Poamoho RG 1, Oahu
0.36  Honolimaloo, Molokai
0.05  Lanai 1, Lanai
1.06  Waikamoi Treeline, Maui
1.33  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  Sunday morning:

17  Nawiliwili, Kauai
33  Oahu Forest NWR, Oahu
27  Makapulapai, Molokai
20  Lanai 1, Lanai
31  Na Kula, Maui
27  Kawaihae Rd, 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 

 

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

It’s partly to mostly cloudy areas here in Maui County early this morning.  The low temperature at my place was 57.5 degrees.

Weather Wit of the day:  Allergy Season – When hay fever is coming achoo!

>>> Highest Temperature Saturday, July 12, 2025 – 121 at Death Valley, CA
>>> Lowest Temperature Sunday, July 13, 2025 – 27 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 tight eastern Pacific pressure gradient created from high pressure located far northeast of Hawaii, will maintain moderate to locally breezy trade winds the next several days. Scattered clouds and showers will mainly focus along windward exposures and upslope mountain areas. An increase in shower activity will occur Monday afternoon into Tuesday.

Hawaii’s Weather Details: There will be a lull in both shower activity and trade wind strength as we push into Sunday. The primary reasoning for this minor drop off in winds will be that the high located approximately 1,500 miles northeast of the islands, will advance a touch further northward through Monday. This minor movement of the high will maintain a tight enough downstream pressure gradient to still produce island-wide breezy trades across many open exposures, higher terrain and through narrow channels.

Slightly drier air moving through will initiate a period of relatively less shower activity. Of course, there will be the scattered showers of low accumulation that intermittently pass across windward areas, with the occasional shower spilling over into leeward communities. The disclaimer exception will be afternoon showers that form along Big Island’s kona slopes. Today’s overall theme will be warm and breezy under partly cloudy skies.

Areas of increased moisture will pass over the islands Monday afternoon into Tuesday. Expect an increase in showers on windward Big Island mid-day Monday, then showers will spread into the central islands Monday night…pushing west into Oahu and Kauai early Tuesday. As the upper level low currently located several hundred miles north of the state retreats further north Monday, mid to upper level ridging will arrive in its wake. This will set the stage for several days of stable, typical dry summer-like weather.

Moderate trades will be mainstay for the majority of the week, possibly becoming locally fresh through eastern island bays and channels by the middle of the week. The eastern upstream air mass will be near to slightly below normal per late July’s moisture standards. So, thicker clouds and the bulk of mid to late week shower activity will be the result of topographic enhancement. The center of the northeast Pacific high may drift or expand closer to the state later in the week, re-tightening the large scale gradient and resulting in a slight increase in trade winds.

Fire weather: Trade winds will remain in the moderate to locally breezy the next several days. While the atmosphere will be rather dry through early Monday, expect typical summer time fire weather conditions. Higher humidity is favored later Monday into Tuesday, followed by a return to drier and typical late July conditions going into the middle of the 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:  The high pressure ridge will weaken north of the Hawaiian Islands, decreasing trade winds speeds through Monday. The ridge will strengthen from Tuesday onward, increasing trade wind speeds back into the moderate to locally strong range through the end of this week. Wind speeds will remain just below Small Craft Advisory (SCA) levels through the winder eastern island bay and channels. SCA conditions may return by Tuesday as wind speeds increase over these notoriously windier waters.

Surf along south facing shores will remain small as small background south southwest swell energy moves through the region. A small, long period south swell will arrive Monday morning, and peak late Monday into Tuesday. South swell energy will gradually diminish through Thursday. The next small long period south swell arrives late Friday and will boost south shore surf into next weekend.

Wind wave driven surf heights along east facing shores will remain on the small and choppy side, then increase slightly through mid-week, as trade wind speeds strengthen. A very small northwest swell may pass through early next week, providing tiny surf along north facing shores on Monday and Tuesday, before becoming nearly flat through the remain forecast period.

 



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:

A trough of low pressure is likely to form near the southeastern U.S. coast during the next day or two and then move westward across Florida into the northeastern Gulf by Tuesday. Environmental conditions could support some gradual development of this system during the middle to late part of this week while it moves westward over the northeastern and north-central portions of the Gulf. Regardless of development, heavy rainfall could produce localized flash flooding over portions of Florida and the north-central Gulf coast through the mid to late portion of this week.

* Formation chance through 48 hours…low…near 0 percent
* Formation chance through 7 days…low…20 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…is located approximately 332 NM south-southeast of Yokosuka, Japan

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

Tropical Cyclone 07W…is located approximately 154 NM southwest of Sasebo, Japan

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:  New Global Index Puts Nature at the Heart of Human Progress



As the world faces an escalating planetary crisis, a new paper published today in Nature offers something we don’t often hear – hope. Rather than focussing on what we’re doing wrong, the paper proposes a bold new way forward; a global framework that measures how well people and nature are thriving together.

The paper, titled ‘An Aspirational Approach to Planetary Futures’, is the result of a international collaboration led by the United Nations Development Programme and researchers including Oxford University’s Professor Yadvinder Malhi and Dr Samira Barzin from the Leverhulme Centre for Nature Recovery, Professor Peter Frankopan, Dr Molly Grace, and Oxford Martin School Fellows Professor Erle Ellis, Professor Sandra Diaz, and Dr Hannah Ritchie.

The team calls for the creation of a ‘Nature Relationship Index’ to sit alongside the Human Development Index (HDI). The aim is to track how countries are improving human relationships with the rest of life on Earth, including a thriving and accessible nature, using natural resources responsibly, and protecting ecosystems – turning these into measurable goals for progress.

Read more at: University of Oxford