Glenn James
Hawaii Weather Today
Creator, Author, and Administrator for 30 years

 

The latest update to this website was at 510am Wednesday morning HST


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

2.31  Mount Waialeale, Kauai
1.48  Lyon, Oahu
1.06  Puu Alii, Molokai
0.85  Lanai City, Lanai
3.84  Puu Kukui, Maui
2.52  Piihonua, Big Island


The following numbers represent the strongest wind gusts (mph) Wednesday morning: 

25  Lihue, Kauai – NE
29  Palehua, Oahu – NE
35  Makapulapai, Molokai – E
25  Lanai 1, Lanai – ENE
36  Kealaloloa Rg, Maui – NNE
39  Puuloa, Big Island – NE


Hawaii’s Mountains – Here’s a link to the live webcam on the summit of our tallest mountain Mauna Kea (~13,800 feet high) on the Big Island of Hawaii. Here’s the webcam for the (~10,023 feet high) Haleakala Crater 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/GOES18/ABI/SECTOR/tpw/13/GOES18-TPW-13-900x540.gif

Cold fronts north and northwest…thunderstorms far southwest and southeast 

 

https://cdn.star.nesdis.noaa.gov/GOES18/ABI/SECTOR/hi/14/20261750630-20261751420-GOES18-ABI-HI-14-600x600.gif

An area of showery clouds (a trough of low pressure) is moving through the state from the east..high cirrus clouds northwest

 

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

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

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

Localized showers…a few are quite heavy 

 

https://www.weather.gov/wwamap/png/hfo.png

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 at home here in upper Kula, Maui, Hawaii

452am, it’s very foggy here in upper Kula with calm winds, and a low temperature at my place of 62 degrees…with the relative humidity 88%

 

>>> Highest Temperature Tuesday, June 23, 2026 – 118 at Death Valley, CA
>>> Lowest Temperature Wednesday, June 24, 2026 – 29 degrees at Peter Sinks, UT

 

Hawaii’s Weather Highlights…as of Wednesday morning: Moderate to breezy trade winds can be expected through the weekend and likely into the first half of next week, pushing showers over mostly windward and mountain areas. These showers will be more active during the night time and early morning hours. A mid level and upper level trough could occasionally allow some of these showers to be a little heavier than normal.

Weather Commentary…as of Wednesday morning: An influx of moisture associated with a low level and mid level trough is passing through the region, providing a decent amount of showers to the islands. 6 hour rainfall totals across windward and mountain areas are several tenths of an inch to an inch. As this moisture moves through today, conditions should dry out a little, but not enough to rule out showers completely. There will still be periodic pockets of moisture moving through, boosting showers followed by drier pockets through the weekend.

Trade winds look to continue through next week, with models indicating another influx of moisture possibly arriving by the middle of next week. There are some differences in model solutions regarding trade wind speeds due to the forecast strength and position of the high pressure system to the north.

https://www.weather.gov/images/hfo/graphics/npac.gif


Here’s a near real-time Wind Profile of the Pacific Ocean – along with a Closer View of the islands / Here’s the latest Weather Map / Looping Surface Precipitation…through the next 8-days / Vog Map

 

Marine Conditions…as of Wednesday morning: The combination of a low level trough passing west of the Hawaiian Islands today, and an upper level disturbance will continue to enhance rain shower activity for all coastal and offshore waters. The subtropical ridge to the north will continue to strengthen, increasing trade wind speeds into the Small Craft Advisory (SCA) range for windier waters and channels around Kauai, Oahu, Maui and the Big Island. Winds will remain moderate to locally strong near Maui and the Big Island for the next several days, keeping the SCA in effect for these waters into the weekend.

A series of small to moderate, medium to long period south and southeast swells will keep surf along south facing shores elevated into the weekend. A small, medium period south swell will continue to fade today, just as the forerunners of the next long period south swell begin to arrive in the islands this morning. This next south swell will build through tonight, and peak on Thursday, with head high to overhead surf heights at most exposed south shore surf breaks. Additional small pulses of south swell energy arrive on Saturday and Sunday.

Surf along east facing shores will gradually build today and then hold into the weekend, as trade winds strengthen. West facing shores will remain on the small side with a slight south swell wrap. Surf heights along north facing shores will increase into Thursday, due to tiny northwest swell energy.

 

No photo description available.


World-wide Tropical Cyclone Activity


>>> Here’s a link to the latest Pacific Disaster Center’s Weather Wall


>>> Atlantic Ocean: There are no active tropical cyclones

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

>>> Caribbean Sea: There are no active tropical cyclones

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

>>> Gulf of America: There are no active tropical cyclones

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

Here’s the link to the National Hurricane Center (NHC)

 

>>> Northeast Pacific: There are no active tropical cyclone

Central and Western Portion of the East Pacific:

Invest 94E

Disorganized showers and thunderstorms continue in association with an area of low pressure located several hundred miles south- southwest of the southern tip of the Baja California Peninsula. A tropical depression could still form today while environmental conditions remain marginally conducive. This system is moving to the west to west-northwest at 15 to 20 mph, and by Thursday it is forecast to move across cooler waters, ending its chances for further development.

* Formation chance through 48 hours…medium…50 percent
* Formation chance through 7 days…medium…50 percent

 

Central and Western East Pacific:

A low pressure system is likely to form this weekend or early next week over the central portion of the East Pacific basin. Environmental conditions are forecast to be conducive for gradual development, and a tropical depression could form by the early to middle part of next week as the system moves westward to west-northwestward at 10 to 15 mph.

* Formation chance through 48 hours…low…near 0 percent
* Formation chance through 7 days…medium…60 percent

Here’s the link to the National Hurricane Center (NHC)

 

>>> Central Pacific: There are no active tropical cyclone

Central and Western Portion of the East Pacific 

Invest 94E

Disorganized showers and thunderstorms continue in association with an area of low pressure located several hundred miles south- southwest of the southern tip of the Baja California Peninsula. A tropical depression could still form today while environmental conditions remain marginally conducive. This system is moving to the west to west-northwest at 15 to 20 mph, and by Thursday it is forecast to move across cooler waters, ending its chances for further development.

* Formation chance through 48 hours…medium…50 percent
* Formation chance through 7 days…medium…50 percent

 

Central and Western East Pacific:

A low pressure system is likely to form this weekend or early next week over the central portion of the East Pacific basin. Environmental conditions are forecast to be conducive for gradual development, and a tropical depression could form by the early to middle part of next week as the system moves westward to west-northwestward at 10 to 15 mph.

* Formation chance through 48 hours…low…near 0 percent
* Formation chance through 7 days…medium…60 percent

Here’s the link to the Central Pacific Hurricane Center (CPHC)

 

>>> Northwest Pacific Ocean: 

Tropical Cyclone 07W (Mekkhala)…is located approximately 311 NM south-southwest of Kadena AB

https://www.metoc.navy.mil/jtwc/products/wp0726.gif

 

Tropical Cyclone 08W (Higos)…is located approximately 903 NM southeast of Kadena AB

https://www.metoc.navy.mil/jtwc/products/wp0826.gif

 

>>> Southwest Pacific Ocean: There are no active tropical cyclones

>>> North and South Indian Oceans / Arabian Sea: There are no active tropical cyclones

Here’s the link to the Joint Typhoon Warning Center (JTWC)



Interesting:  UK Rivers Face Rising Risk of Climate ‘Whiplash’

Climate change could push UK rivers to dangerous extremes and see more frequent rapid swings between wet and dry conditions – a phenomenon known as hydro-climatic whiplash – according to research led by the University of East Anglia (UEA).

Researchers analyzed almost 700 river catchments across the UK to project how river flows may change at 2°C and 4°C of global warming.

The results reveal stark regional contrasts and growing challenges for communities and water managers trying to plan for flood and drought risk – particularly in areas that will increasingly experience both.

Read More: University of East Anglia