The latest update to this website was at 413am Monday morning (HST)

 

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

86 / 73  Lihue AP, Kauai
89 / 78  Honolulu AP, Oahu
86 / 72  Molokai AP, Molokai
87 / 72  Kahului AP, Maui
86 / 73  Kona AP, Big Island
84 / 69  Hilo AP, Big Island

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

0.29  Puu Lua, Kauai
0.11  Oahu Forest NWR, Oahu
0.05  Puu Alii, Molokai
0.00  Lanai
0.04  Hana AP, Maui
0.15  Kawainui Stream, Big Island

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

14  Poipu, Kauai
14  Palehua, Oahu
10  Molokai AP, Molokai
16  Lanai 1, Lanai
12  Kahului AP, Maui
14  Kealakomo, 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 

Thunderstorms well south of Hawaii
(click for larger version)


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

High Cirrus clouds coming up from the south at times

 

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

Weak cold front just north of Kauai

 

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

A few localized showers…mostly windward

 

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 Sunday comments: 

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

I’m here in Bend, Oregon, and Bob will be driving me to Portland early this morning, as I have a flight home to Kahului, Maui. On the one hand I am anxious to leave, as there is so much wild fire smoke in the air here in Bend, with varying amounts of smoke on a daily basis. On the other hand, I’m going to miss spending so much quality time with Bob for the last week or so! We love walking and hiking out in nature! His wife returns on Wednesday, which he’s looking forward to of course.

 

Hawaii’s Broad Brush Weather Overview:  Gentle breezes across the state will become more light and variable through the middle of the week. Partly cloudy to mainly clear skies with relatively warmer and more humid conditions will prevail the next couple of days. A lingering weak front laying across the northwestern waters will place slightly higher rain chances over Kauai. Gentle to more breezy trade winds, with more windward and higher terrain showers will return late in the week.

Hawaii’s Weather Details:  A low southwest is centered approximately 1,000 miles northeast of Oahu and its associated cold front is hung up just north of Kauai. This has weakened the regional pressure gradient back to islands, from a large high cell far northwest of the state. Moisture pooling along this weak meandering cold frontal boundary becoming a trough by Tuesday, will keep rain chances higher over the far northwestern waters and the island of Kauai the next couple of days.

While the overall atmosphere remains relatively dry, especially at Hilo, the boundary layer will stay moist enough to have days still feeling muggy, as lower elevations warm into the very warm afternoon mid to upper 80’s. A stable, very dry mid to upper level air mass under a mid layer inversion as trades die out to more localized breezes, will maintain mainly clear leeward and near coastal skies with partly cloudy skies at elevation. Moderate precipitation chances will exist over Kauai due to the boundary with daily inland-pushing sea breezes, initiating more Kona afternoon showers on the Big Island.

The vicinity of the weak frontal boundary near Kauai will result in light and variable winds over the islands through the middle of the week. The upper low will begin to fill in and weaken as it slowly moves off to the northwest through mid-week. This will have its associated weak surface trough washing out by Thursday, and allowing more breezy trades to return Thursday afternoon into the weekend.

A strong mid-level ridge will hold a stable, dry and warm atmosphere in place through Thursday. Higher mid level moisture arriving from the east will also make more of a mark during this time. Thus, more area wide rain probabilities will be on the rise going into the weekend. A more typical weekend trade wind pattern will ensure a higher frequency of overnight showers occurring along windward exposures and at higher elevation.

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:  Trade winds will diminish, then become light and variable through Tuesday, as a front approaches and stalls near Kauai. The front will weaken into a trough and shift westward by the middle of the week, allowing the trade wind to return and gradually strengthen. High pressure building northeast of the state will bring fresh to strong trade winds back to the waters Thursday through the weekend.

Surf along north-facing shores will steadily lower Monday. A moderate north swell will arrive Monday night, peak late Tuesday through early Wednesday, then gradually decline through the end of the work week. The lack of strong trades over and upstream of the state, will keep east shore surf tiny through mid-week, aside from the locations exposed to the previously mentioned north swell.

The return of fresh to strong trades over and upstream of the islands Thursday will allow east shore surf to gradually build back to near normal levels by the weekend. South shore surf will remain small this week, with mainly background swells moving through. A small south-southwest swell could give south shore surf a boost by the weekend.

 

Vancouver to Hawaii: Tips for booking trips, what to see - Vancouver Is Awesome

 

 

World-wide Tropical Cyclone Activity

 

Atlantic Ocean:  There are no active tropical cyclones

>>> Central Tropical Atlantic:

Invest 92L

An area of low pressure is producing disorganized showers and thunderstorms over the central tropical Atlantic. Environmental conditions are marginally conducive for development during the next few days, and a tropical depression could form while the system meanders over the central tropical Atlantic. By the middle part of the week, the system is forecast to move westward-northwestward at around 10 mph.

* Formation chance through 48 hours…medium…60 percent
* Formation chance through 7 days…medium…60 percent

>>> Eastern and Central Tropical Atlantic:

A trough of low pressure located several hundred miles west-southwest of the Cabo Verde Islands is producing a broad area of disorganized showers and thunderstorms. In a couple of days, this trough is expected to interact with an approaching tropical wave. Afterward, Environmental conditions appear favorable for gradual development of this system, and a tropical depression could form during the middle to latter part of this week while the system moves west-northwestward at 10 to 15 mph.

* Formation chance through 48 hours…low…near 0 percent
* Formation chance through 7 days…medium…60 percent

Caribbean Sea:  There are no active tropical cyclone

Gulf of Mexico: 

Potential Tropical Cyclone 06L…which is located about 535 miles south of Cameron, Louisiana

DISTURBANCE EXPECTED TO BECOME A STRENGTHENING TROPICAL STORM TODAY…INCREASING RISK OF LIFE-THREATENING STORM SURGE AND HURRICANE-FORCE WINDS ALONG THE LOUISIANA AND UPPER TEXAS COASTS BY MID-WEEK

The system is moving toward the north-northwest near 5 mph. A slow northwestward to northward motion is expected over the next day or so, followed by a faster motion to the northeast beginning late Tuesday. On the forecast track, the disturbance is expected to move just offshore of the northern Gulf Coast of Mexico through Tuesday, and approach the Louisiana and Upper Texas coastline on Wednesday. Maximum sustained winds are near 50 mph with higher gusts. The disturbance is expected to become a tropical storm today, with more significant intensification forecast to occur on Tuesday. The system is forecast to become a hurricane before it reaches the northwestern U.S. Gulf Coast.

* Formation chance through 48 hours…high…90 percent
* Formation chance through 7 days…high…90 percent

Northeastern Pacific:  There are no active tropical cyclones

>>> Offshore of Southwestern Mexico:

An area of low pressure is forecast to form during the middle part of the week, near or just to the south of the coast of southwestern Mexico. Environmental conditions are forecast to be conducive for some gradual development of this system, and a tropical depression could form during the middle to latter part of this week while it moves generally north-northwestward, near the coast of southwestern Mexico.

* Formation chance through 48 hours…low…near 0 percent
* Formation chance through 7 days…medium…60 percent

Here’s the link to the National Hurricane Center (NHC)

North Central Pacific:  There are no active tropical cyclones

>>> Approximately 1000 miles southeast of Hilo, Hawaii:

A trough of low pressure located around 1000 miles southeast of Hilo, Hawaii is producing disorganized showers and thunderstorms. Environmental conditions will remain unfavorable for development of this system as it moves slowly northwestward during the next couple days, and Tropical cyclone formation is no longer expected.

* Formation chance through 48 hours…low…near 0 percent
* Formation chance through 7 days…low…near 0 percent

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:  New Research from Swansea University Shines a Light on How Solar Power and Farming can Coexist

In a recent study published in Solar RRL, academics from the University’s Department of Physics have been exploring the effect of semi-transparent PV materials placed over crops – an exemplary application of agrivoltaics (solar panels combined with agricultural settings).

As part of this work, the team has developed an innovative freeware tool that predicts the light transmission, absorption, and power generation of different PV materials nearly anywhere on the globe using geographical, physical, and electrical measurements.

Austin Kay, lead author of the study and a PhD candidate at Swansea University, said: “This technology, which allows us to compare many types of PV material, could help us determine how we balance food production and renewable energy generation.”

Read more at: Swansea University