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The latest update to this website was Wednesday at 9pm (HST)

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

7664  Lihue AP, Kauai
8372  Honolulu AP, Oahu
80 – 71  Molokai AP, Molokai
82 – 65  Kahului AP, Maui 
82 – 72  Kona AP, Hawaii
80 – 64  Hilo AP, Hawaii 

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

0.84  Mount Waialeale, Kauai
0.40  Manoa Lyon Arboretum, Oahu
0.40  Puu Alii, Molokai
0.06  Lanai
0.71  West Wailuaiki, Maui
0.38  Kamuela Upper, Big Island

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

28  Port Allen, Kauai
37  Oahu Forest NWR, Oahu
31  Molokai AP, Molokai
25  Lanai 1, Lanai
31  Kahului AP, Maui
31  Upolu AP, Big Island

Hawaii’s MountainsHere’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. Here’s the webcam for the (~10,023 feet high) Haleakala Crater 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 located far north-northwest
(click for larger version)

 


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

High and middle level clouds are moving away towards the northeast

 

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

Variable low clouds across the state…carried our way on the trade wind flow

 

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

Showers locally

 

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

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

511am, it’s mostly clear at my place in Kula…with a low temperature of 49 degrees.

722am, it’s completely clear over most of Maui, with just the usual low clouds in places along the windward coasts and slopes…and of course over the West Maui Mountains.

1240pm, fortunately the haze is all gone here on Maui…what a relief!

446pm, clear to partly cloudy, and it feels warmer than the 75.3 that my outdoor sensor is showing.

723pm, it’s partly cloudy over Maui as it gets dark. The winds are locally strong and gusty in those area exposed to the trade winds. There aren’t many showers around, and those few are generally along the windward sections of the island chain. The high temperature here at my place today was one of the warmest this year…77 degrees.

9pm, it’s partly cloudy, thus the not particularly cool 62 degrees at the time of this writing here at my Kula weather tower.

 

Hawaii’s Broad Brush Weather Overview: Strong and gusty trade winds are expected Thursday, as high pressure strengthens north of the state. Showers will focus over windward and mountain areas with some reaching the leeward areas.

Drier and more stable conditions will return over the weekend, with winds easing into the moderate range. Rainfall chances may trend up next week, as an upper disturbance moves through and trade winds increase again.

Hawaii’s Weather Details: Models show high pressure building north of the state. The easterly trades will respond and become strong beginning later today, then likely strong enough for localized wind advisories through the day Thursday over the typically windier locations of Maui County and the Big Island.

In addition to the strengthening winds, windward shower coverage could trend up, due to a combination of a weak mid- to upper-level trough, and a sufficient amount low-level moisture in the area. Some of these showers will manage to make it over to leeward areas of the smaller islands, especially overnight through the mornings.

Drier and more stable conditions will briefly return over the weekend. Trade winds are expected to ease into the moderate range, due to a weakness forming in the ridge to our north, as a cold front passes by to the north of the state of Hawaii.

The forecast confidence lowers early next week, due to significant differences shown between the various model solutions. While the GFS is more aggressive and depicts the tail-end of the aforementioned cold front moving through the area, with strong northerly winds trailing it.

The ECMWF shows it hanging up to the north with easterly trades holding. Regardless of these differences, the attendant upper trough digging southward over the area drawing moisture into the area, should be enough to support a transition to a wetter pattern Monday through mid-week.

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:  High pressure north of the islands will move eastward and strengthen over the next few days, resulting in increased trade wind speeds across local waters through the rest of the work week. The Small Craft Advisory (SCA) remains in effect for the typical windy waters around Maui County and the Big Island, and has been expanded to include windward and leeward waters around Maui County and Oahu.

Strong trades will create rough and choppy surf along east facing shores, which will continue into next week. Moderate west-northwest (310 degree) swells will gradually decrease. Expect additional small northwest (310-320 degree) swells Thursday into early next week. Small surf will continue for south facing shores through the weekend with some new energy arriving early next week.

 

Hawaii Tours on Oahu- Circle Island Adventure with Oahu Nature Tours

 

 

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 20S (Gamane)…is located approximately 309 NM north-northeast of Antananarivo, Madagascar / Sustained winds are 40 knots…with gusts to near 50 knots

https://www.metoc.navy.mil/jtwc/products/sh2024.gif

https://www.metoc.navy.mil/jtwc/products/20S_271200sair.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:  MIT-Derived Algorithm Helps Forecast the Frequency of Extreme Weather

To assess a community’s risk of extreme weather, policymakers rely first on global climate models that can be run decades, and even centuries, forward in time, but only at a coarse resolution. These models might be used to gauge, for instance, future climate conditions for the northeastern U.S., but not specifically for Boston.

To estimate Boston’s future risk of extreme weather such as flooding, policymakers can combine a coarse model’s large-scale predictions with a finer-resolution model, tuned to estimate how often Boston is likely to experience damaging floods as the climate warms. But this risk analysis is only as accurate as the predictions from that first, coarser climate model.

“If you get those wrong for large-scale environments, then you miss everything in terms of what extreme events will look like at smaller scales, such as over individual cities,” says Themistoklis Sapsis, the William I. Koch Professor and director of the Center for Ocean Engineering in MIT’s Department of Mechanical Engineering.

Read more at: Massachusetts Institute of Technology