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

 

The latest update to this website was at 1236pm Monday afternoon HST


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

6.72  Mount Waialeale, Kauai
9.75  Poamoho RG 1, Oahu
1.01  Puu Alii, Molokai
0.08  Lanai City, Lanai
4.64  West Wailuaiki, Maui
3.45  Hilo AP, Big Island


The following numbers represent the strongest wind gusts (mph) Monday afternoon: 

28  Port allen, Kauai – NE 
40  Oahu Forest NWR, Oahu – E 
29  Makapulapai, Molokai – ENE
m   Lanai – m
39  Na Kula, Maui – NE
30  Hokuloa, 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 (out of operation). 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

  Tropical cyclone 01C (Lala) well southwest of Kauai

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https://cdn.star.nesdis.noaa.gov/GOES18/ABI/SECTOR/hi/13/20262291310-20262292100-GOES18-ABI-HI-13-600x600.gif 

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 

 

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 Monday comments:  I’m at home here in upper Kula, Maui, Hawaii

1126am, working on one small laptop screen, and on limited battery power, although I’ll do my best to do what I can, in keeping current information coming to you.

 

 

Hawaii’s Weather Highlights…as of Monday afternoon: Tropical Storm Lala is continuing to move west of the state. Some lingering scattered showers will continue through the day. Trade wind pattern returns Tuesday with windward and mountain showers. Later this week winds may veer slightly southeast.

Short Term Update: Main update to the forecast is to increase the rainfall forecast mainly across the windward and mountain parts of the islands through this evening. Radar and satellite show light scattered showers moving towards the windward sides of the islands. Observations over the past 3 hours show up to 0.35 inches, locally up to 0.55 inches of additional rain over the Koolaus, 0.25 inches of additional rain has fallen on the windward side of the Big Island with up to 0.20 inches of additional rain on the windward side of Maui and Kauai. Lingering moisture in the air from Tropical Storm Lala will create continued chances for additional light showers through this evening. Shower activity will dissipate into Tuesday as moisture decreases and trade wind weather returns.

Weather Narrative..as of Monday afternoon: Radar and satellite show some showers along windward Oahu and some leftover bands of rain from Tropical Storm Lala moving over Kauai and Niihau. Showers will continue to dissipate as trade wind weather returns.

Tropical Storm Lala continues to move away to the west, well southwest of Kauai. Tropical storm warnings are cancelled. The Flash Flood watch has also be cancelled. With the departure of Lala winds will ease into the moderate category. Inversion depth will remain a little higher than normal through the upcoming week, leading to relatively wet trades.

Showers can be expected over windward and mauka locations with some isolated spillover into leeward areas. These trades will veer to the east-southeast Thursday night, and remain that way through the weekend.

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 Monday afternoon: The center of Tropical Storm Lala has just exited the western edge of the offshore waters this morning as it continues to move west. Fresh to locally strong easterly trade winds will gradually build through the day from the east to west. A Small Craft Advisory (SCA) remains in effect for the windier waters and channels around Maui County and the Big Island through tonight. By midweek, trade winds will ease through the forecast period to gentle to fresh speeds across all coastal waters.

Surf along south facing shores will remain elevated today from a moderate medium to long period swell that has filled in overnight. Went ahead and bumped up the south shore surf slightly for this morning based on the latest buoy observations. Surf will likely peak today before slowly declining through midweek. Another long period south swell generated from gales just south and east of New Zealand will begin arriving late this week.

Surf along east facing shores will continue to decline today as Lala progresses further west of the state. East facing shores will remain small to moderate through the forecast period. North facing shores will remain tiny with only wind wave-driven chop in tandem with the declining east swell wrap. West facing shores will also remain tiny to small with some south swell wrap.

 

>>> Highest Temperature Sunday, August 16, 2026 – 114 degrees at Death Valley, CA


>>> Lowest Temperature Sunday, August 16, 2026 – 31 degrees near Old Station, CA

 

Twin Wailua Waterfalls Kauai


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.

 

Northeast Pacific: There are no active tropical cyclones

 

>>> South of Mexico:

An area of low pressure could form several hundred miles south of the coast of southern Mexico around the middle part of the week. Gradual development of this system is possible thereafter, and a tropical depression could develop towards the end of the week or next weekend while the system moves west-northwestward, while staying south of Mexico.

* Formation chance through 48 hours…low…near 0 percent
* Formation chance through 7 days…high…70 percent

 

>>> Western portion of the eastern Pacific:

A broad area of low pressure could form well to the southeast of the Hawaiian Islands during the latter part of the week. Environmental conditions appear conducive for gradual development of this system, and a tropical depression could form towards the end of the week or over the weekend as the system moves generally westward across the western portion of the east Pacific and into the central Pacific.

* Formation chance through 48 hours…low…near 0 percent.
* Formation chance through 7 days…medium…50 percent

 

Central North Pacific: 

Tropical Cyclone 01C (Lala)…is located about 275 MI SSE OF FRENCH FRIGATE SHOALS

LALA SLIGHTLY STRONGER AS IT CONTINUES MOVING WESTWARD

According to the NHC advisory number 22…

Lala is moving toward the west near 10 mph, and this motion is expected to continue through Tuesday. A turn toward the west-northwest and northwest is forecast on Wednesday and Thursday. Maximum sustained winds have increased to near 65 mph with higher gusts. Some strengthening is forecast during the next couple of days, and Lala could become a hurricane again by late Tuesday. Tropical-storm-force winds extend outward up to 90 miles from the center. The estimated minimum central pressure is 994 mb (29.36 inches).

 

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

https://www.metoc.navy.mil/jtwc/products/abpwsair.jpg

>>> 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: The Turtle Who Wants to Cross the Road

An eastern box turtle living in the New Hope Creek watershed near Duke’s campus wants to leave its habitat in search of resources or a mate. What are its safest routes without getting crushed on a busy road?

North Carolina’s official state reptile will soon receive help from a newly formed Bass Connections team working to create safe corridors for reptiles and amphibians living in the region’s nature preserves.

Duke Forest director Sara Childs; Nicolette Cagle, a senior lecturer at the Nicholas School of the Environment; and Shannan Hayes, associate director of undergraduate engagement at the Kenan Institute for Ethics, have teamed up with Nicholas School lecturing fellow Clay Noss and Ph.D. student Caroline Rowley to lead the Bass Connections project during the upcoming academic year.

Read more at: Duke University