The latest update to this website was at 508am Thursday (HST)

 

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

84  / 70  Lihue AP, Kauai
84 / 63   Molokai AP, Molokai
85 / 62  Kahului AP, Maui
88 / 73   Kona AP, Big Island
85 / 67   Hilo AP, Big Island

>>> There are lots of new locations that measure rainfall and winds now, here’s a map of all areas for your reference

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

0.46  Makaha Ridge, Kauai
0.09  Kahana, Oahu
0.00  Molokai
0.00  Lanai
0.01  Puu Kukui, Maui
0.23  Glenwood, Big Island

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

21  Barking Sands, Kauai
13  Kuaokala, Oahu
08  Puu Alii, Molokai
12  Lanai AP, Lanai
13  Crater Rd, Maui
18  South Point, 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 fronts approaching Kauai from the northwest


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

Low clouds being carried in on the south to southeast wind flow

 

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

Deeper clouds coming over the state from the west

 

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

Localized showers, some heavy…around Kauai and Oahu

 

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 Thursday comments:  I’m here in Corte Madera, California, visiting my friend Linda, at the start of a working vacation.

543am HST, it’s a perfectly clear morning here at the Sea Ranch, on the coast of Mendocino County, in northern California…with a very chilly 39 degree low.

Weather Wit of the day:  Hail – Rice crispies

 

Hawaii’s Broad Brush Weather Overview: A cold front currently moving into Kauai and Niihau will stall and weaken near the Kauai Channel into Friday. Expect wet weather across Kauai County during this time period, with some enhanced showers moving into Oahu.

Our early spring trade winds will begin to build back into the islands by Friday, strengthening into the moderate to breezy range from Saturday onward, with periods of enhanced showers lasting through much of next week.

Hawaii’s Weather Details:  Satellite imagery shows a rapidly weakening cold frontal cloud band moving into Kauai and Niihau, which will produce periods of wet weather across Kauai County for the next two days. Trade winds will quickly build in across the region behind the front over Kauai, then spread eastward across the state on Friday.

Light southerly winds east of the front may produce brief periods of showers for the other islands today. Vog will continue to linger over most islands through Friday, until the easterly trade winds begin to push the Volcanic haze in a more westward direction away from the islands by Friday night.

The latest short range model solutions continue to show the forward motion on the front stalling, as the frontal boundary moves into the Kauai Channel by tonight. Most islands will continue to see light land and sea breeze weather conditions in place through today.

Trade winds will fill in across the front over Kauai later today, enhancing showers over north and east slopes of the Garden Isle, and to some degree over Oahu with this approaching frontal system. The frontal band will then weaken over the Kauai Channel as easterly trade winds spread across the state on Friday.

Easterly trade winds will then push the cloud band associated with the remnant cold front will then drift westward back over Kauai and Niihau from late Friday into Saturday. More typical trade wind weather remains in the forecast for the rest of the state through the weekend.

The forecast next week shows an easterly trade wind weather pattern, with a period of enhanced showers from a cloud band moving in from the north. This cloud band is associated with the remnants of a dissipated frontal band originating in the eastern Pacific.

Enhanced shower activity will favor windward and mountain areas during the Tuesday morning through Friday morning time period. Higher chances for showers are likely over windward and mountain slopes during the typical overnight to early morning hours.

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 slow moving and weakening cold front will push through Kauaib before stalling and dissipating over the Kauai channel. Light to moderate southerly winds will hold ahead of the front, with moderate northerly winds filling in behind the front.

Moderate to locally strong trade winds will reestablish themselves Friday into Saturday and persist into next week. Small Craft Advisory conditions may return first for the western half of the state as early as Friday around Kauai, then for the rest of the state over the weekend, as strong trades winds return and seas build.

Surf along north and west facing shores will start out small then gradually build into Friday, as a small to moderate medium period north-northwest swell (330-340) fills in. The swell will continue to build Friday generating surf near to just below advisory level along north and west facing shores.

A large to extra large, long period swell (350-360) will quickly build in Saturday that will likely produce warning level surf along north facing shores, with advisory level surf across west and east facing shores through the weekend. This swell, aside from being hazardous to small craft, could generate harbor surges along north facing bays and inlets.

Surf along south facing shores will remain tiny into the weekend, with mainly background energy dominating. A small, long period south swell may fill in later over the weekend into early next week, and provide a small boost to surf along south facing shores.

Surf along east facing shores will remain small, but will gradually build Friday into the weekend, with the return of trade wind flow, over and upstream of the state and from the larger northerly swells wrapping into exposed areas.

 

 

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 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:  Humpback Whales’ Use of Memory to Time Their Migration Could Prove Less Effective Amid Climate Change

A new study led by McGill University researchers indicates that humpback whales in the southeastern Pacific combine real-time environmental cues with their memories of conditions in their Antarctic feeding grounds to determine when to embark on their annual 10,000-kilometre journey. With climate change accelerating, the researchers warn this strategy may become less effective amid shifting ocean conditions.

Tracking whale migration through satellite data

The research team analyzed eight years of satellite tracking data, from 2009 to 2016, from 42 humpback whales tagged off Costa Rica, Panama and Ecuador. Their goal was to track each individual during their migration to the Southern Ocean in Antarctica and to understand what triggers the whales’ southward migration each year.

The findings suggest that whales integrate local environmental changes – such as sea temperature and food availability – with their long-term memory of ocean conditions in their Antarctic feeding grounds. This helps them time their migration to coincide with the seasonal bloom of krill, their primary food source in the Southern Ocean.

Read More: McGill University