The latest update to this website was 556am Saturday morning (HST)

 

Air Temperatures – The following high temperatures (F) were recorded across the state of Hawaii Friday…along with these low temperatures Friday morning: 

80 – 72  Lihue AP, Kauai
85 – 73  Honolulu AP, Oahu
84 – 71  Molokai AP, Molokai
83 – 68  Kahului AP, Maui 
84 – 72  Kona AP, Hawaii
79 – 66  Hilo AP, Hawaii 

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

1.15  Mount Waialeale, Kauai
0.76  Schofield East, Oahu
0.36  Puu Alii, Molokai
0.04  Lanai City, Lanai
2.62  Puu Kukui, Maui
2.07  Honolii Stream, Big Island

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

31  Lihue, Kauai
42  Oahu Forest NWR, Oahu
35  Makapulapai, Molokai
31  Lanai 1, Lanai
36  Maalaea Bay, Maui
38  Kohala Ranch, Big Island

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. 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 

An upper level low northwest of the islands…with a trough over the islands
(click for larger version)

 


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

 High clouds are moving over the state from the west at times

 

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

Low clouds carried our way on the trade winds

 

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

Showers locally…especially over the windward sides of the islands

 

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

Good day everyone, I hope you have a great Saturday wherever you happen to be spending it.

557am, it’s a mostly clear morning, with a low temperature of 50.5 degrees. Looking over towards the windward side I see considerable low clouds, which are trying to ride over into the leeward side here in Kula…on the gusty trade wind flow.

 

Hawaii’s Broad Brush Weather Overview:  Breezy trades will continue into Monday, as a high pressure system remains parked far north. An upper level low northwest of Kauai will slowly drift across the island chain through Monday, enhancing shower activity mainly over windward and mountain areas of each island.

By Tuesday the disturbance aloft weakens and drifts northeast of the state, briefly decreasing shower activity. A low level cloud band will ride into the islands on the trade winds, with support from an upper level trough from Wednesday to Thursday, increasing shower trends over all islands.

Hawaii’s Weather Details:  Satellite imagery continues to show an upper level low to the west-northwest of Kauai. An upper level trough is also evident over the islands, enhancing trade wind showers as shown on island radar. The subtropical jet stream flows over the Big Island, and will slowly drift north over the next few days.

A high pressure center and subtropical ridge will remain anchored over the Central Pacific basin, far north of the Hawaiian islands through this weekend. This system will produce breezy easterly trade winds across the state of Hawaii into Monday.

Trade wind speeds will slowly decrease to moderate levels from Monday into Tuesday, as the high pressure center drifts eastward away from the island chain, and a trough moves into the Central Pacific. Easterly trade winds will continue to blow at moderate levels through Friday.

Expect continued enhanced showers across the state, as the unstable upper level disturbance slowly drifts eastward across the island chain. Most of the rainfall amounts will favor windward and mountain areas as breezy trade winds carry clouds up and over the windward mountain slopes.

Down sloping trade wind flow over the leeward sides of island mountain ranges will tend to decrease shower activity for leeward areas of each island. Shower trends will tend to increase during our typical diurnal rainfall maximum in the overnight to early morning hours.

In the extended forecast we continue to see a long band of unsettled shallow clouds, remnants of an old Eastern Pacific cold front, drifting into the islands on the moderate trade winds from Wednesday morning into Thursday. This cloud band may produce wet weather over all islands for an 18 to 24 hour time period.

The highest rainfall amounts will tend to favor windward and mountain areas, however many leeward sites may also see measurable rainfall totals with this next system. This fairly shallow cloud band will likely not be deep enough to produce heavy rainfall, rather more beneficial rain is forecast for all islands.

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

Marine Environmental Details:  Consolidating high pressure far north will support strong easterly trade winds into Monday, with island terrain accelerating winds to near-gale force in the windier channels. The high will move east thereafter, leading to a gradual easing in trade wind speeds by the middle of next week.

A Small Craft Advisory (SCA) for all waters will remain posted through at least Sunday. A disturbance aloft will allow for the development of a few heavier showers the next couple of days, producing periods of gusty winds and reduced visibility.

Combined seas arriving along east facing shores will result in rough and choppy surf for the next several days. Also, a new north-northwest swell will peak. This swell will gradually diminish Sunday, but another relatively small northwest swell is expected Monday and Tuesday.

Elsewhere, the storm track in the southern hemisphere recently became favorable for the generation of Hawaii-bound south swells, with pulses of swell arriving on-and-off for at least the next week. The first of these south swells is expected to arrive later this weekend and early next week, with peak surf heights remaining below High Surf Advisory (HSA) heights, although later swells may be large enough to warrant a HSA.

 

Kauai, Hawaii — The Salty Travelers

 

 

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:  There are no active tropical cyclones

North and South Indian Oceans:

Tropical Cyclone 23S (Hidaya)…located approximately 849 NM northwest of Antananarivo, Madagascar – Final Warning 

https://www.metoc.navy.mil/jtwc/products/sh2324.gif

https://www.metoc.navy.mil/jtwc/products/23S_041200sair.jpg

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: Webb Telescope Probably Didn’t Find Life on an Exoplanet — Yet

Recent reports of NASA’s James Webb Space Telescope finding signs of life on a distant planet understandably sparked excitement. A new study challenges this finding, but also outlines how the telescope might verify the presence of the life-produced gas.

The UC Riverside study, published in the Astrophysical Journal Letters, may be a disappointment to extraterrestrial enthusiasts but does not rule out the near-future possibility of discovery.

In 2023 there were tantalizing reports of a biosignature gas in the atmosphere of planet K2-18b, which seemed to have several conditions that would make life possible.

Many exoplanets, meaning planets orbiting other stars, are not easily comparable to Earth. Their temperatures, atmospheres, and climates make it hard to imagine Earth-type life on them.

Read more at University of California – Riverside

Image: Artist rendering of the view on a Hycean world.