The latest update to this website was at 855am Monday (HST)

 

Here are the highest temperatures Sunday afternoon…and the lowest Monday morning:

77 / 61  Lihue AP, Kauai
77 / 60  Molokai AP, Molokai
78 / 61  Kahului AP, Maui
84 / 65  Kona AP, Big Island
78 / 60  Hilo AP, Big Island

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

0.00  Kauai
0.01  Kamananui Stream, Oahu
0.00  Molokai
0.00  Lanai
0.00  Maui
0.17  Honaunau, Big Island

The following numbers represent the strongest wind gusts (mph) as of Monday morning:

14  Puu Lua, Kauai
28  Kuaokala, Oahu
18  Makapulapai, Molokai
17  Lanai 1, Lanai
15  Kahului AP, Maui
24  Kealakomo, 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 

 A weakening cold front still south of the Big Island…another front well northwest


https://cdn.star.nesdis.noaa.gov/GOES17/ABI/SECTOR/hi/GEOCOLOR/GOES17-HI-GEOCOLOR-600x600.gif

Variable low clouds across the state

 

https://cdn.star.nesdis.noaa.gov/GOES17/ABI/SECTOR/hi/13/GOES17-HI-13-600x600.gif

Generally clear skies…with a few exceptions

 

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

Dry

 

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)

 

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

Please open this link to see details on any current Watches, Warnings and Advisories noted above

 

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

~~~ Hawaii Weather Narrative ~~~

 

Glenn’s Monday comments:  I’m home here in upper Kula, Maui, Hawaii. I hope you have a good day wherever you happen to be spending it.

It’s clear here in upper Kula early this morning, with a very cold low temperature of 44.5 degrees.

Weather Wit of the day:  Ice Skates – Things that take several sittings to learn how to stand on them

 

Hawaii’s Broad Brush Weather Overview:  Dry conditions will continue the next few days. Light north to northeasterly wind flow within this dry environment will allow for seasonable cool mornings and comfortably warm afternoons through the middle of the week.

Light showers will mainly focus on windward exposures. An upper level trough passage Tuesday will increase late Monday into Tuesday morning’s rain chances. A weak frontal passage to the north Thursday may briefly disrupt the trades, and provide a minor increase in showers. Easterly trade winds will return Friday, and persist into early next week. A wetter weather pattern is forecast next week.

Hawaii’s Weather Details:  A very pleasant start to the new week, under clear to partially cloudy skies with generally light northerly winds or variable breezes. Winds will gradually shift back to trade flow through the day. Overnight satellite imagery showed stable bands of stratocumulus moving across the island chain from the north.

High pressure northwest of the state will be advancing east and passing north of the state the next couple of days. This high will generate gentle trade winds through Thursday. Ridging moving across from the west, in tandem with limited available moisture, will keep leeward and lower elevation skies mainly clear.

Thicker cloud cover and light precipitation will be confined to the better-exposed windward areas. The lack of any large scale forcing within gentle trades will allow for more wind-sheltered local diurnal winds. While daytime sea breezes will assist in the build up of leeward slope cumulus and subsequent isolated showers, nocturnal drainage winds will clear out evening skies.

A shallow front and associated upper trough will pass north of the state late tonight through Tuesday. Look for light to low end moderate probabilities for light showers over better-exposed windward communities and higher elevations. A trough moving into a larger scale trough far north of the state Thursday, will subtly lower heights across the islands.

A weak front may move by the state to the north. This will briefly disrupt east trade flow Thursday. Moisture depth will likely be too shallow for this weak front to generate much precipitation in its eastern passage. Thus, there will be no significant weather to close out the week, from the passage of this weak upper trough Thursday night. High pressure west of the island chain, once northeast of the state, will prompt trades to return by the weekend.

After this relatively drier week, a wetter pattern may begin to take shape early next week. Deeper mid layer moisture pooling up east of a broad upstream North Pacific trough, may increase our rainfall chances. More active and frequent rain will likely focus along windward Big Island and Maui County next Monday and Tuesday, within strengthening easterly trade winds.

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 / Vog map animation

Hawaii’s Marine Environment:  Moderate to locally fresh north-northeast winds are expected, as a weak high pressure system northwest of the state slowly tracks eastward. Winds will veer to the east and weaken Tuesday night through Thursday. By Friday through the end of the week, high pressure to the far northeast will build back moderate to locally fresh trade winds. Trade winds remain just under Small Craft Advisory through the forecast period, for the windier waters and channels around Maui County and the Big Island.

A combination of a moderate to large medium period north-northeast swell, that has begun to rise at the nearshore buoys and a small to moderate, medium period northwest swell expected to slowly build, and will produce moderate to large surf along north facing shores through Tuesday. Latest observations are showing the north-northeast swell filling in and expected to peak, before gradually declining through the middle of the week.

A High Surf Advisory has been issued for all exposed north facing shores through tonight. A Small Craft Advisory has also been issued for high seas in exposed waters and channels across the state. Also, a Marine Weather Statement has been issued for Maui County windward waters and Big Island windward waters, in regard to north facing harbors such as Kahului and Hilo because of the north-northeast swell.

Surf along east facing shores will remain small except for shorelines exposed to the north-northeast swell through Wednesday. Surf along south facing shores will remain tiny through the forecast period.

 

 

 

World-wide Tropical Cyclone Activity

 

Atlantic Ocean:  There are no active tropical cyclones

Caribbean Sea:  There are no active tropical cyclones

Gulf of Mexico:  There are no active tropical cyclones

Northeastern Pacific:  There are no active tropical cyclones

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

North Central Pacific:  There are no active tropical cyclones

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

Northwest Pacific Ocean:  There are no active tropical cyclones

Southwest Pacific Ocean:  

Tropical Cyclone 15P is located approximately 125 NM east-northeast of Noumea, New Caledonia

https://www.metoc.navy.mil/jtwc/products/sh1525.gif

North and South Indian Ocean:  

Tropical Cyclone 11S (Faida) is located approximately 177 NM east-northeast of Antananarivo, Madagascar

https://www.metoc.navy.mil/jtwc/products/sh1125.gif

Tropical Cyclone 13S (Vince) is located approximately 283 NM south-southwest of Cocos Islands

https://www.metoc.navy.mil/jtwc/products/sh1325.gif

Tropical Cyclone 14S (Taliah) is located approximately 432 NM north of Learmonth, Australia

https://www.metoc.navy.mil/jtwc/products/sh1425.gif

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:  Toxic Grime: Wildfire Smoke Can Deposit Toxins on Cities Hundreds of Kilometres Away, Researchers Find

Plumes of wildfire smoke can carry contaminants hundreds of kilometers, leaving a lingering toxic footprint that has the potential to be re-released into the environment, McMaster researchers show.

In recent weeks, catastrophic wildfires have devasted Los Angeles, scorching tens of thousands of acres. Canada’s 2023 wildfire season was the most destructive ever recorded, destroying an estimated 45.7 million acres.

The frequency and severity of wildfires is expected to continue increasing due to climate change, and these events can become a troubling source of pollution in urban areas, researchers say.

Wildfire smoke features a complex mixture of pollutants, including polycyclic aromatic hydrocarbons (PAHs), a class of carcinogenic compounds that can also cause mutations in nature. PAHs are produced whenever incomplete combustion occurs, including when wood burns.

Read more at McMaster University

Image: Researchers Sarah Styler (left) and Iris Chan say wildfire events may become an increasingly dominant and troubling source of pollution in urban areas.