The latest update to this website was at 505am Wednesday (HST)

 

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

87 – 75  Lihue AP, Kauai
87 – 74  Molokai AP, Molokai
94 – 71  Kahului AP, Maui – Record high 97 in 2019
87 – 78  Kona AP, Big Island
86 – 72  Hilo, AP, Big Island

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

(The NWS isn’t able to update this data)

0.70  Mount Waialeale, Kauai
2.75  Moanalua RG, Oahu
0.42  Honolimaloo, Molokai
0.10  Lanai 1, Lanai
0.39  Hana AP, Maui
0.41  Waiaha 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 Wednesday morning:

(The NWS isn’t able to update this data)

16  Port Allen, Kauai
29  Oahu Forest NWR, Oahu
27  Makapulapai, Molokai
15  Lanai 1, Lanai
10  Lanai 1, Lanai
22  Mamane Pl, Maui
28  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 

 Hurricane Iona and Tropical Storm Keli are moving by to the south of the state…no threat…just some high clouds streaming northward 


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 level clouds moving over the state from the south 

 

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 Wednesday 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 55.5 degrees.

Weather Wit of the day:  Sonic Boom – A pane killer

>>> Highest Temperature Tuesday, July 29, 2025 – 114 at Death Valley, CA
>>> Lowest Temperature Wednesday, July 30, 2025 – 29 near Mackay, Idaho

 

Hawaii’s Broad Brush Weather Overview:  Moderate to locally breezy trades will continue to gradually strengthen today, as a high north of the state drifts south. Clouds and light showers will focus along windward and mountain areas, particularly overnight and during the early mornings, as a rather dry and stable airmass settles over the state and persists into the weekend.

Hawaii’s Weather Details: For the next several days, Hawaii will be located in between a surface high pressure system to the north and several tropical systems — Hurricane Iona, Tropical Storm Keli, and another tropical disturbance being monitored for development — all passing south of the state.

This pattern will tighten the pressure gradient and yield breezy to locally strong easterly trades. Moisture should be limited for only a few passing showers particularly in windward and mountain areas. Winds may ease a bit to more moderate to breezy levels early next week, but other than that there does not appear to be much change to the pattern in the next several days.

By the middle of next week though, we’ll need to continue monitoring the potential for any lingering remnant energy from another tropical system to approach Hawaii from the east, which could increase moisture.

Fire weather: Humidity and wind speeds will be near critical conditions into the weekend as breezy conditions develop.

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:  Trade winds will maintain at moderate to strong speeds as high pressure to the far north-northwest drifts southeastward, and Hurricane Iona and Tropical Storm Kali passes several hundred miles south of the state. The Small Craft Advisory (SCA) remains in effect for the typical windier waters and channels around Maui County and the Big Island, and has been expanded in coverage to include the Kauai waters as trade winds strengthen. This SCA will likely be expanded to most local waters by the weekend.

The two current Tropical cyclones in the Central Pacific are forecast to pass several hundred miles south of Hawaii over the next couple of days. Additional Tropical Cyclone development could be expected far southeast of Hawaii in the next few days. Isolated thunderstorms along the northern periphery of these systems may effect the far southern portion of the offshore waters, and while some short-period southeast swells may reach southern and southeastern shores of Hawaii, a much larger and unrelated south swell will dominate.

A multi-day buildup of surf for south facing shores is expected as long period swells fill in. The first swell has started to show long period forerunner, and will build. By tonight, forerunners from the next much larger swell will start to fill in and peak late Thursday, well over advisory levels and may near warning levels near its peak, then hold through Friday. The swell will gradually decline over the weekend and will be followed by another long period south swell early next week.

East shore surf will trend up over the next few days as strengthening trade winds generate larger wind swell waves. Surf along east facing shores will rise to seasonal average tonight or Thursday, and hold into the weekend, followed by a possible decline early next week.

Flat summer conditions along north facing shores may be interrupted this weekend by a small long period northwest swell from Typhoon Krosa, currently in the western Pacific.

 



World-wide Tropical Cyclone Activity

 

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.

 

Northeastern Pacifi

South of Southwestern Mexico:

Invest 99E

>>> Shower activity associated with a trough of low pressure located several hundred miles southwest of the southwestern coast of Mexico has become a little better organized since yesterday. Environmental conditions appear conducive for development, and a tropical depression is likely to form during the next day or two while the system moves west-northwestward around 15 mph, remaining well offshore of the southwestern coast of Mexico.

* Formation chance through 48 hours…high…80 percent
* Formation chance through 7 days…high…90 percent

Central East Pacific:

>>> An area of low pressure is forecast to develop well south of southern or southwestern Mexico late this week. Environmental conditions appear conducive for some gradual development of this system and a tropical depression could develop over the weekend or early next week as the system moves 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)

 

North Central Pacific: 

Tropical Cyclone 01C (Iona)..is located about 695 miles south-southwest of Honolulu, Hawaii

According to the NHC Advisory number 14

IONA CONTINUES TO RAPIDLY WEAKEN

Iona is moving toward the west near 20 mph. This general motion is expected to continue during the next couple of days. Maximum sustained winds have decreased to near 75 mph with higher gusts. Additional rapid weakening is expected today, and Iona is expected to weaken to a tropical storm later this morning. Little change in strength is expected tonight and Thursday. Hurricane-force winds extend outward up to 25 miles from the center and tropical-storm-force winds extend outward up to 90 miles.

cone graphic

 

Tropical Cyclone 02C (Keli)..is located about 540 miles south-southeast of Honolulu, Hawaii

According to the NHC Advisory number 9

KELI RACING WESTWARD

Keli is moving toward the west near 21 mph. A fast westward to west-northwestward motion is expected to continue during the next day or so. Maximum sustained winds are near 40 mph with higher gusts. Keli is expected to weaken to a tropical depression by later today and dissipate by Thursday. Tropical-storm-force winds extend outward up to 45 miles from the center.

cone graphic

Well East-Southeast of the Hawaiian Islands:

Invest 92C

>>> Showers and thunderstorms associated with an area of low pressure located around 1150 miles east-southeast of the Hawaiian Islands remain limited. However, if persistent showers and thunderstorms re-develop during the next day or so, a short-lived tropical depression could still form during the next day or two. After that time, environmental conditions are expected to become less conducive for development.

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

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

 

Northwest Pacific Ocean: 

Tropical Cyclone 11W (Co-may)…is located 5 NM west of Shanghai, China – Final Warning

https://www.metoc.navy.mil/jtwc/products/wp1125.gif

 

Tropical Cyclone 12W (Krosa)…is located 126 NM north-northeast of Chichi Jima

https://www.metoc.navy.mil/jtwc/products/wp1225.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:  Burned Amazon Forests Stay Hot and Stressed for Decades, Finds New NASA-Supported Study

Forests in the Brazilian Amazon damaged by fire remain about 4.7?°F hotter than neighboring intact or selectively logged stands, and the extra heat can linger for at least 30?years. The findings suggest that fire alters tropical forests in ways that slow their recovery and may weaken their ability to tolerate climate stress and store carbon—a crucial role these forests play in global climate mitigation.

The study was published in the journal Environmental Research Letters.

“We’re finding that burning has major ecological impacts over large timescales and that regeneration is much more at risk—it’s slower or not happening at all,” said lead author Savannah S.?Cooley, a research scientist at NASA Ames Research Center and a recent PhD graduate of Columbia’s Ecology, Evolution and Environmental Biology (E3B) program. (Cooley was co-advised by Duncan Menge and Ruth DeFries, professor and co-founding dean of the Columbia Climate School.)

Unlike fire-adapted ecosystems such as savannas or pine forests, Amazon rainforests evolved in humid conditions where natural fires were rare. As a result, many tropical tree species haven’t developed traits to tolerate or recover from fire damage.

Read more at Columbia Climate School