The latest update to this website was at 4pm Wednesday (HST)

 

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

81 / 67  Lihue AP, Kauai
m / m   Honolulu AP, Oahu
m / m  Molokai AP, Molokai
84 / 61  Kahului AP, Maui
83 / 71  Kona AP, Big Island
84 / 70  Hilo AP, Big Island

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

0.21  Lihue AP, Kauai
0.06  Moanalua, Oahu
0.01  Puu Alii, Molokai
0.01  Lanai City, Lanai
0.00  Maui
0.10  Honolii Stream, Big Island

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

21  Port Allen, Kauai
17  Kuaokala, Oahu
09  Molokai 1, Molokai
17  Lanai 1, Lanai
13  Hana, Maui
18  Kaupulehu, 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 cold front is approaching from the 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

A few high clouds in the vicinity of the islands

 

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

Localized showers…mostly around Oahu and Kauai

 

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 home here in upper Kula, Maui, Hawaii. I hope you have a good Wednesday wherever you happen to be spending it.

It’s mostly clear, with a low temperature of 50 degrees according to my outside temperature sensor.

I’m heading up the mountain this morning, as it’s the most beautiful day, with hardly a cloud in the sky! Once I get up there I’ll pull my skateboard out and take some runs, slow ones, as I don’t want to fall by going too fast!

 

Hawaii’s Broad Brush Weather Overview:  The combination of southerly winds, moisture ahead of an approaching front, and an upper trough will increase rainfall chances for portions of the state later today through the second half of the week.

The front will reach Kauai Thursday, then stall and begin to diminish near Oahu Thursday night into Friday. Breezy north-northeast winds will fill in behind it Thursday and Thursday night. Trades will return briefly on Friday. A second cold front passing north of the area over the weekend could cause trades to weaken again.

Hawaii’s Weather Details:  Rainfall will increase today through tonight as upper troughing digs southward into the area. Southerly winds and lift ahead of an approaching front could trigger pre-frontal showers today, especially through the late morning and afternoon hours for the western end of the state.

Radar and satellite loops show this potential, with increased cloud cover and developing showers noted over waters around Oahu and Kauai. Instability will increase tonight over and around Kauai as the front draws closer. Although chances remain low, a thunderstorm or two can’t be completely ruled out tonight into Thursday, especially over the waters north of Kauai.

Models show the front will stall and slowly diminish around Oahu Thursday night through Friday, as the upper trough lifts northeastward and away from the area. Breezy north to north-northeast winds behind the front Thursday and Thursday night over the western end of the state, will veer out of the east Friday. This will push residual frontal moisture westward. A brief return of light trade winds is possible over the weekend as another cold front passes to the north.

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 ridge extending over the islands from the east is supporting gentle winds statewide that are out of the E-SE over Big Island waters, and from the S-SW over Kauai and Oahu waters. Little overall change in the ridge’s position is expected.

A low passing north of the islands late tonight and Thursday will force the ridge eastward, with a tightening low-level gradient supporting fresh to locally strong south to southwest kona winds near Kauai and Oahu, as a cold front approaches from the northwest.

Fairly high confidence in the front moving over Kauai on Thursday, then stalling near Oahu from late Thursday into Friday. Winds and/or seas will likely reach Small Craft Advisory (SCA) criteria in at least some of the waters Thursday and Friday, and the front will bring a slight chance of thunderstorms.

As the front stalls and dissipates, locally fresh to strong post-frontal north winds over Kauai and Oahu will gradually ease and veer to the northeast Thursday night into Friday, while light to moderate east winds will prevail over Maui and Big Island waters. Wind speeds will quickly diminish statewide Saturday, then light to moderate trade winds on Sunday are expected to strengthen next week, as high pressure builds to the distant northeast.

Long fetches of near-gale to gale-force winds associated with low pressure systems passing well north of the area will send northwest swell of varying sizes and periods toward the islands the next several days. Most of the swell’s energy will result in surf expected to be near or above High Surf Advisory (HSA) levels along exposed north and west facing shores into the weekend.

In the short term, swell heights have diminished slightly. The High Surf Advisory (HSA) for exposed north and west facing shores has been cancelled. Another northwest swell late Thursday into Friday will likely produce HSA-level surf, with a smaller NNW pulse possible by the weekend.

A south swell is will gradually decline through Thursday. Another south swell is expected by this weekend, but it will likely be a little smaller than the current swell at its peak.

 

 

 

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:  Countdown to an Ice-Free Arctic: New Research Warns of Accelerated Timelines

The first summer on record that melts practically all of the Arctic’s sea ice, an ominous milestone for the planet, could occur as early as 2027.

For the first time, an international research team, including CU Boulder climatologist Alexandra Jahn and Céline Heuzé from the University of Gothenburg in Sweden, used computer models to predict when the first ice-free day could occur in the northernmost ocean. An ice-free Arctic could significantly impact the ecosystem and Earth’s climate by changing weather patterns.

“The first ice-free day in the Arctic won’t change things dramatically,” said Jahn, associate professor in the Department of Atmospheric and Oceanic Sciences and fellow at CU Boulder’s Institute of Arctic and Alpine Research. “But it will show that we’ve fundamentally altered one of the defining characteristics of the natural environment in the Arctic Ocean, which is that it is covered by sea ice and snow year-round, through greenhouse gas emissions.”

Read More: University of Colorado Boulder

Arctic sea ice is melting as a result of climate change.