The latest update to this website was at 737am Wednesday (HST)

 

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

85  / 75  Lihue AP, Kauai
87 / 69   Molokai AP, Molokai
86 / 65  Kahului AP, Maui
85 / 74   Kona AP, Big Island
85 / 66   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 Wednesday morning:

0.19  Hanapepe, Kauai
0.44  Ahuimanu Loop, Oahu
0.00  Molokai
0.08  Lanai AP, Lanai
0.11  Olowalu, Maui
0.26  Keahuolu, Big Island

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

14  Makaha Ridge, Kauai
18  Kii, Oahu
13  Keopukaloa, Molokai
10  Lanai 1, Lanai
28  Na Kula, Maui
16  Mauna Loa Obs, 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 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

 

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

522am, it’s a perfectly clear morning here in Marin County, after a very chilly 37 degree low.

My friend Bob, who I’ve been friends with for over 50 years, has driven down from Bend, Oregon to join Linda and I. He and I will be driving up to Sonoma County later this morning, as we have a vacation rental for the next week…right on the coast.

Weather Wit of the day:  Oceanography Student – An aquademic

 

Hawaii’s Broad Brush Weather Overview:  Rain chances will steadily increase through the week, especially over the western half of the state, as a frontal boundary moves over Kauai and stalls near Oahu Thursday into Friday.

Breezy to locally strong trade winds should return on Friday, with a showery trade wind pattern expected through the weekend. Once again, the trade wind showers should be most frequent over the western half of the state.

Hawaii’s Weather Details:  A weak high pressure system northwest of the state is generating light to moderate south to southeasterly winds. Wind speeds are expected to ease as the high weakens and shifts eastward, and a cold front approaches from the west.

Expect sea breezes to develop, allowing clouds and showers to build up over leeward and interior areas. Land breezes will develop shortly after sunset clearing low clouds and showers, especially over the eastern half of the state. Vog will be more widespread today.

Isolated thunderstorms may form over the coastal waters northwest of Kauai, as a broad active rain band associated with the front inches closer, although confidence is low. High resolution model guidance shows an area of convergence ahead of the front, that could create some scattered showers over the central islands later this afternoon.

In addition, we could see an increase in showers along coastlines exposed to southeast flow around Big Island and Maui County, as an area of low level clouds with embedded showers moves through. Meanwhile the leading edge of the broad rain band will approach Kauai today becoming disorganized,  that could generate widely scattered heavier showers.

The tail-end of the rain band looks to be more organized as it moves over Kauai Thursday. There could be some localized nuisance flooding or ponding concerns later today into Thursday as winds ease, allowing for any moderate to locally heavy showers to persist longer over one area, especially for north Kauai.

The frontal boundary is expected to weaken and stall somewhere around Kauai or Oahu on Friday, allowing breezy to locally strong trade winds to return. Lingering moisture and upper level instability will help generate a showery trade wind pattern across the state over the weekend and into early next week. The greatest moisture will once again continue to be across the western half of the state, especially Kauai. Volcanic emissions (vog) should be swept southwest of the state as trades return.

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 cold front, slowly approaching the islands from the west, will maintain breezy southeasterly flow across the eastern portion of the state, and light to moderate southerly flow elsewhere. Instability aloft, ahead of the front, will lead to isolated thunderstorms west of Kauai. The front should move across Kauai and near Oahu Friday before dissipating. Expect moderate to locally strong northeast trades to develop this weekend and persist into early next week.

A small west-northwest swell will maintain small surf along north and west facing shores into Thursday. A moderate north-northwest (330-350) swell is expected to arrive on Friday, and could produce advisory level surf.

A large to extra large, long period, north to north- north west (340-360) swell is forecast to build this weekend and could likely produce warning level surf along north facing shores, with advisory level surf across west and east facing shores. 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 low through this weekend, with mainly background energy dominating.

 

 

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:  In a Warming World, Why Is the Southern Ocean Getting Cooler?

Climate models predict that as the planet warms, so will the Southern Ocean. But for decades, the waters around Antarctica have grown mysteriously cooler. A new study shows why.

With warming, the region is seeing more rainfall and more ice melt, which are introducing more freshwater into the Southern Ocean. Because freshwater is not as dense as saltwater, it stays on the surface of the ocean instead of sinking down below. Freshwater acts like a lid, keeping warmer waters from rising up, scientists say, and the effect is much greater than previously appreciated.

Until now, models have failed to fully account for the influence of rain and, in particular, melting. Study coauthor Earle Wilson, of Stanford University, said the impact of meltwater is “completely missing from most climate models.”

Read more at: Yale Environment 360

Icebergs in the Southern Ocean.