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The latest update to this website was Monday at 836pm (HST)

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

7466  Lihue AP, Kauai
8064  Honolulu AP, Oahu
80 – 69  Molokai AP, Molokai
81 – 67  Kahului AP, Maui 
8371  Kona AP, Hawaii
78 – 66  Hilo AP, Hawaii 

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

0.10  Mount Waialeale, Kauai
0.01  Manoa Lyon Arboretum, Oahu
0.03  Puu Alii, Molokai
0.00  Lanai
0.52  West Wailuaiki, Maui
0.70  Honaunau, Big Island

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

23  Port Allen, Kauai
18  Oahu Forest NWR, Oahu
21  Makapulapai, Molokai
24  Lanai 1, Lanai

23  Maalaea Bay, Maui
27  Kealakomo, 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 

The next cold front will move by to the north and northwest
(click for larger version)

 


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

Low clouds mostly along the windward sides and around the mountains…high cirrus moving by just north of the state

 

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…not many

 

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 Monday comments: I’m home here in upper Kula, Maui, Hawaii

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

617am, it’s partly cloudy at my place in Kula…with a chilly low temperature of 48 degrees.

835am, the considerable clouds over Maui early this morning have all high-tailed it out of Dodge now. There’s still the usual low clouds along the windward side, and over the West Maui Mountains, although pretty minor for the most part.

235pm, it’s partly cloudy, with a few clear and clouds areas about too. The trade winds are blowing steadily in the moderately strong realms, some places lighter, although not many stronger.

8pm, the afternoon clouds are clearing here on the leeward slopes of the Haleakala Crater, and skies are gradually becoming clearer. The temperature has dropped 4 degrees over the past 15-20 minutes…and is at 56.4 degrees at the time of this writing. / 52.7 degrees now at 837pm.

 

Natural Wonders of Hawaii | Sightseeing | Go Hawaii

 

Hawaii’s Broad Brush Weather Overview: Moderate easterly trades will continue through the first half of this new week, with clouds and light showers favoring windward locations overnight through the mornings.

A return of breezy easterly trades and increasing rainfall chances is possible through the second half of the week, as an upper disturbance moves into the area.

Hawaii’s Weather Details:  Dry and stable conditions will continue through the first half of the week. The best chances for a few, mostly light, showers will be over typical windward and mountain locations overnight through the early mornings, with moderate easterly trades continuing. Any leeward showers are more likely to occur in the afternoons, where localized sea breezes form. Accumulations will be minimal with the stable conditions in place.

A gradual strengthening and destabilization of the trade wind flow is possible through the second half of the week. There is higher confidence that trades will likely increase as a deeper high sets up far north of the state, potentially resulting in breezy conditions by Friday. An upper-level trough will slowly pass over the region during this time, bringing cold temperatures Wednesday through Friday.

While there could be some increase in shower coverage in response to the added instability, a mid-level ridge may be able to maintain stability, and lower the chances of locally heavy rainfall. Guidance shows a pulse of upper-level energy dipping southward Friday through Saturday, potentially prompting an upper low over the eastern end of the state. If this were to materialize, these conditions could linger through the weekend.

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:  After a brief pick up in northeast to east trade winds, primarily focused through the notoriously windier areas around Maui County and Big Island, our trades will ease back to more moderate levels as a result of high pressure settling in north of the coastal waters.

Little change is expected through Wednesday, when another high develops farther north of the region. This high will build in Thursday and Friday and tighten the regional pressure gradient enough to strengthen trades back to fresh to locally strong levels into the weekend.

Several overlapping northwest swells are scheduled to arrive this week. The latest moderate size northwest (310-320 degree) swell peaked surf to near or slightly under High Surf Advisory (HSA) thresholds along most north and west-facing Kauai-to-Maui shores recently. This swell will decline into Tuesday, to then be followed by a slightly larger northwest (310-330 degree) swell building in Tuesday night.

As a result, the arrival of this high end moderate size swell will likely produce mid-week advisory level north and west-facing shore surf. North and west shore surf will fall below HSA heights Thursday. A moderate size northwest (310 degree) swell is due by the weekend.

A weak pulse of early season, south southwest (200 degree) swell has been passing through the past day or so. Expect this inconsistent swell to peak south-facing shore surf at slightly above March averages, then surf will gradually decline with the fading swell through Wednesday.

East shore surf will remain small through the middle of the week. There will be a slight pick up in chop later this week in response to strengthened trades.

 

Rainbow in Maui - Picture of Maui, Hawaii - Tripadvisor

 

 

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:

Tropical Cyclone 19P (Megan)…is located approximately 397 NM east-southeast of Darwin, Australia – Final Warning

https://www.metoc.navy.mil/jtwc/products/sh1924.gif

North and South Indian Oceans: 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:  Diverse Habitats Help Salmon Weather Unpredictable Climate Changes

Restored salmon habitat should resemble financial portfolios, offering fish diverse options for feeding and survival so that they can weather various conditions as the climate changes, a new study shows.

The researchers looked at threatened spring-run Chinook salmon in tributaries of the Sacramento River. They found that restored sites that produce lots of fish may be especially vulnerable to changes such as drought. Such sites should be coupled with other varying sites that support the salmon population in diverse ways.

“The fish need all the different opportunities,” said Flora Cordoleani, a NOAA Fisheries and University of California Santa Cruz researcher who led the research published this week in Ecosphere. “Fish with one life history that favors certain habitat are not going to save the population in the long term. We need diverse habitats to support diverse life histories that help provide resilience.”

Life history refers to salmon traits such as their juvenile migration timing, growth rates, and food preferences. For instance, some juvenile salmon migrate to the ocean in their first year, while others may spend the year growing in freshwater first. That timing may benefit them in some years, but leave them more vulnerable in others, such as during drought.

Read more at NOAA Fisheries

Image: Spring-run Chinook salmon in California’s Central Valley were once the backbone of California’s commercial salmon fishery, but are now a threatened species that remain in a few tributaries of the Sacramento River.