The latest update to this website was at 809pm Sunday (HST)

 

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

81 – 72  Lihue AP, Kauai
87 – 69  Molokai AP, Molokai
90 – 70  Kahului AP, Maui
84 – 76  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 Sunday evening:

1.60  Mount Waialeale, Kauai
1.54  Poamoho RG 1, Oahu
0.10  Puu Alii, Molokai
0.29  Lanai 1, Lanai
0.30  Puu Kukui, Maui
0.74  Waikoloa, Big Island

>>> There are lots of new locations that measure rainfall and winds now, here’s a map of all areas for your reference (the map is clickable to zoom in closer)

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

23  Barking Sands, Kauai
23  Oahu Forest NWR, Oahu
23  Makapulapai, Molokai
18  Lanai 1, Lanai
27  Na Kula, Maui
27  Upolu AP, 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 Front northwest…thunderstorms in the deeper tropics


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

Low clouds being carried our way on the trade winds…high clouds arriving from the west

 

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

Partly to mostly cloudy skies

 

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)

 


Please open this link to see details on any current Watches, Warnings and Advisories noted above

~~~ Hawaii Weather Narrative ~~~

 

Glenn’s Sunday comments:  I’m home here in upper Kula, Maui, Hawaii.

It’s partly cloudy here in Maui County this morning…with a very pretty orange sunrise! The low temperature here at my place was 59 degrees.

855am, it’s cloudier than usual for this time in the morning, wouldn’t surprise me to see more showers falling, like we saw yesterday…at least locally.

1135am, it’s cloudy here in upper Kula, and about 1130am we started to get a few very small drops of water falling out of this rather thick clouds….although that has ended now.

430pm, it’s cloudy with vog starting to arrive here on Maui.

6pm, cloudy with a light shower falling, with calm winds here in upper Kula. Meanwhile, looking down country I see voggy air and sunny skies for the most part.

906pm, just like last night at this time, it’s foggy with very light sprinkles or drizzle, providing a drip, drip, drip reality as I prepare to bed down with a Mary Oliver book of poetry.

Weather Wit of the day:  Diminishing Winds – Disgusted

 

Hawaii’s Broad Brush Weather Overview:  Moderate to locally breezy east-southeast trades will persist through Monday as a broad surface trough develops to the west of the state. A disturbance aloft may enhance showers a bit during this time, with showers favoring east and southeast facing slopes and coasts at night, and leeward areas each afternoon.

Moderate to locally breezy east-northeast trades will return Monday night, focusing showers over windward and mountain areas. This pattern will hold in place through the remainder of the work week, with the trades potentially easing next weekend.

Hawaii’s Weather Details:  The shift to an east-southeast steering flow can be seen on radar and satellite imagery, as low level clouds and showers riding in on the trades take on a southeasterly component, and move somewhat parallel along the island chain. This veered trade wind flow is the result of a broad surface trough developing to the northwest of the state, and interacting with the strong surface ridge centered about 2000 miles north-northeast. In the upper levels, dense cirrus clouds continue to filter across the area from the west-southwest, thanks to an upper level jet stream arching across the region.

This moderate to locally breezy east-southeasterly low level flow pattern is expected to continue through Monday. Clouds and showers will favor windward and mountain areas during the overnight to early morning hours, and leeward and interior areas during the afternoon hours as sea breezes develop.

This flow can also cause low level convergent boundaries that form downstream of each island, providing additional showers to their neighboring downstream islands, as they line up along the island chain…particularly across Oahu. Shower activity may be slightly enhanced across the western end of the state through Monday, as both an upper level trough/low dives south to the west of Kauai bringing instability aloft and low level moisture is filtered across the area.

A return to breezy and more stable trade wind conditions is expected by Monday night as drier air filters in from the east, and the surface trough weakens and moves away from the state. This will result in a more typical easterly trade wind pattern through at least Thursday, with showers favoring windward areas, and generally dry conditions prevailing elsewhere.

For the latter end of the week and into next weekend, the trades may ease slightly as a weak upper-level trough moves overhead and another broad surface trough develops west of the state. However, the instability associated with the trough aloft and the available moisture look rather unimpressive, so not expecting much more than perhaps a slight enhancement of trade wind showers.

Vog will continue to filter across the island chain in the east-southeast flow, then transition westward of the smaller islands by mid-week as the easterly 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:  Moderate to locally strong east-southeast trade winds will prevail through Monday. As a result, the Small Craft Advisory (SCA) has been extended for many zones around Maui and the Big Island through 6pm Monday. The trades are expected to shift more east-northeast Monday night and Tuesday, and this will likely require a reconfiguration of the zones in the SCA, along with an extension through late in the work week.

The current northwest swell will decline, with north shore surf dropping to near June average for the first half of the work week. Tiny surf is expected Thursday through next weekend.

A mix of small background south swells will keep some small surf moving into south facing shores over the next couple days. A small southwest swell may bring a boost to south shore surf late Tuesday and Wednesday. A more significant long-period south-southwest swell will build late this week, then peak well above the June average next weekend.

Surf along east-facing shores will remain small and choppy through Sunday, then gradually build to near or above seasonal average Monday through Wednesday, due to a return of fresh to strong trades over and upstream of the islands.

 



World-wide Tropical Cyclone Activity

 

Atlantic Ocean:  There are no active tropical cyclones

Tropical cyclone formation is not expected during the next 7-days.

Caribbean Sea:  There are no active tropical cyclones

Tropical cyclone formation is not expected during the next 7-days.

Gulf of Mexico:  There are no active tropical cyclones

Tropical cyclone formation is not expected during the next 7-days.

The long-term averages for the number of named storms, hurricanes, and major hurricanes are 14, 7, and 3, respectively.

Northeastern Pacific:   There are no active tropical cyclones

Offshore of Central America and Southern Mexico

>>> An area of low pressure is forecast to form offshore of the coast of Central America and southern Mexico during the middle to late portions of this week. Once it forms, the disturbance is expected to move generally westward to west-northwestward around 10 mph. Environmental conditions are expected to be marginally conducive for slow development of this system, and a tropical depression could form by the end of the week.

* Formation chance through 48 hours…low…near 0 percent
* Formation chance through 7 days…medium…40 percent

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

North Central Pacific:  There are no active tropical cyclones

Tropical cyclone formation is not expected during the next 7-days.

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:  Tackling a Mystery That’s Killing Blueberries in the Field

Identifying the cause and prevalence of a costly disorder in blueberries is the goal of a team of researchers at The University of Queensland.

Scientists at UQ’s Queensland Alliance for Agriculture and Food Innovation are leading an investigation into root wrapping and associated crown disorders, which causes significant fruit loss globally each year.

Project lead Dr Alice Hayward said there was little published data on the disorder and what was causing it.

Read More: University of Queensland