The latest update to this website was at 250pm Tuesday (HST)

 

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

81 / 69  Lihue AP, Kauai
80 / 67   Molokai AP, Molokai
80 / 65  Kahului AP, Maui
82 / 69   Kona AP, Big Island
80 / 69   Hilo AP, Big Island

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

1.16  Mount Waialeale, Kauai
0.40  Manoa Lyon Arboretum, Oahu
0.62  Puu Alii, Molokai
0.00  Lanai
3.08  Puu Kukui, Maui
3.66  Honolii Stream, Big Island

The following numbers represent the strongest wind gusts (mph) as of Tuesday afternoon:

31  Port Allen, Kauai
39  Oahu Forest NWR, Oahu
32  Makapulapai, Molokai
35  Lanai 1, Lanai
52  Kealaloloa RG, Maui
52  Helco Hokuloa, 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 

 Cold front northwest


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

Low clouds being carried in on the strong trade winds

 

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

High clouds streaming by to the southeast…well developed cumulus clouds forming west of the Big Island

 

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)

 

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 Tuesday 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 mostly clear here in upper Kula early this morning, while my low temperature was 49.5 degrees.

12pm, it’s mostly sunny to partly sunny, except for mostly cloudy along the windward sides, with some passing showers. This morning I drove over to the Eddie Tam gym in Makawao and tried my hand at Badminton. I thought I would be pretty good, since I’m a decent Pickleball player, although as it turned out I was a raw beginner! I was honestly shocked, as I consider myself quite fit and generally quite athletically inclined. I almost left in the beginning, although there was one person who hung in there with me, and allowed me to practice. I was horrible at first, although by the time I left I was doing much better.

Weather Wit of the day:  Dust – Finely powdered atmospheric particles, often used by bachelors as protective coating for furniture

 

Hawaii’s Broad Brush Weather Overview:  Breezy to windy trades will persist through mid-week, and deliver periods of clouds and showers to windward and mountain areas. Then trades will gradually weaken through the weekend to become moderate to locally breezy, prompting some sea breeze activity over leeward areas. An upper level low moving into the Hawaii area from the northwest, may enhance shower activity across the state from Saturday into early next week.

Hawaii’s Weather Details:  Current radar and satellite imagery show low clouds and showers streaming into windward areas. This activity looks like it will continue over the next couple of hours, as there seems to be plenty of cumulus upstream and only a small dry slot moving towards the state. However, the surface high and mid- level ridge positioned north of the state will sag south and begin to increase the atmospheric stability over Hawaii today through Thursday, which will help to lessen shower activity some. Even so, batches of moisture caught up in the trades will still carry showers to windward and mountain areas.

As the high pressure to the north shifts south, the pressure gradient will strengthen across the state and temperature inversion heights will fall. Both of these mechanisms will help to funnel stronger trade winds across the state. The strongest winds are expected across the more typical terrain enhanced leeward Maui County and Big Island areas, where a Wind Advisory is in effect for surface wind speeds expected to exceed 30 mph with gusts to 44 mph or greater. Trades will remain breezy to windy through Wednesday, then gradually decline through the weekend, as the center of the surface high moves closer to the state, then off to the east as a front/trough approaches from the northwest, weakening the local pressure gradient.

As alluded to above, models show a trough approaching the state from the northwest by the weekend, with its attendant surface low and cold front pushing the surface ridge further off to the east, and shifting the trade winds out of the east-southeast. With trade winds expected to be in the moderate to breezy range and this slight shift in direction, isolated sea breeze activity will be possible, allowing clouds and a few showers to develop over leeward areas in the afternoons. Instability will increase this weekend as the trough forms a cutoff low and brings cooler temperatures aloft.

This increasing instability combined with enhanced moisture riding in on the trades from the east, and even more moisture moving in from the west may lead to enhanced shower activity over the state, with moderate to locally heavy rain possible. Thunderstorms will also be possible, but will likely stick close to the cold core low where the instability will be greatest, near the western end of the state. These unsettled weather conditions may last into early next week, as model guidance suggests that moisture and instability will linger.

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: A strong high pressure cell building far north of the state will maintain strong to gale force winds through early Wednesday morning, then weaken slightly thereafter. Gale Warnings are in effect through early Wednesday morning for Alenuihaha and Pailolo Channels and Maalaea Bay. A Small Craft Advisory for all of the remaining Hawaiian waters will likely be extended into Thursday. Trade winds should continue to weaken slightly and veer towards the east- southeast late this week into this weekend, as a trough develops west of the state.

The current small north-northwest swell (340 degree) is expected to steadily decline and fade out. A moderate long-period north-northwest (330 degree) swell will arrive tonight and peak on Wednesday, producing elevated surf along select north and west facing shores near advisory thresholds. A similar sized long-period west-northwest to northwest swell (300 to 320 degree) is expected to fill in Thursday night and peak on Friday. This swell could once again briefly approach advisory thresholds for select north and west facing shores on Friday and gradually decline over the weekend.

Rough surf will continue along east facing shores over the next several days in response to the persistent strong trade winds over and upstream of the islands. Surf will near High Surf Advisory criteria today into Wednesday morning as trades peak in strength. Surf along south-facing shores will remain small.

 

 

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: 

North and South Indian Ocean:

Tropical Cyclone 24S (Ivone)…is located approximately 806 NM south-southeast of Diego Garcia

https://www.metoc.navy.mil/jtwc/products/sh2425.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:  AI Has ‘Great Potential’ for Detecting Wildfires, New Study of the Amazon Rainforest Suggests

Integrating this new technology with current AI systems could help detect wildfires, such as the devastating LA blazes, to enhance earlier warning strategies – experts believe.

A type of Artificial Intelligence that mimics the functioning of the human brain could represent a powerful solution in automatically detecting wildfires, plummeting the time needed to mitigate their devastating effects, a new study finds.

The new technology uses an ‘Artificial Neural Networks’ model that combines satellite imaging technology with deep learning (a subset of Artificial Intelligence (AI) and machine learning).

Findings, published in the peer-reviewed International Journal of Remote Sensing, report a 93% success rate when training the model via a dataset of images of Amazon rainforest with, and without, wildfires.

Read more at Taylor & Francis Group