The latest update to this website was 9pm Monday evening (HST)

 

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

81 – 69  Lihue AP, Kauai
86 – 70  Honolulu AP, Oahu
84 – 72  Molokai AP, Molokai
83 – 68  Kahului AP, Maui 
84 – 74  Kona AP, Hawaii
79 – 68  Hilo AP, Hawaii 

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

0.15  Puu Lua, Kauai
0.11  Poamoho RG 1, Oahu
0.00  Molokai
0.03  Lanai AP, Lanai
0.04  Kepuni, Maui
1.12  Honolii Stream, Big Island

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

15  Port Allen, Kauai
23  Kaneohe, Oahu
27  Makapulapai, Molokai
13  Lanai 1, Lanai
21  Kahului Harbor, Maui
22  Upolu AP, 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 

The kona low continues to move away from our islands
(click for larger version)

 


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

 The middle and high clouds are moving away to the east…with more high cirrus moving our way from the northwest

 

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

East to southeast winds carrying a few low clouds our way

 

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

A few 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 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.

504am, it’s mostly clear this morning here in Kula, with a low temperature of 54 degrees at my place.

1130am, mostly cloudy upcountry, with partly cloudy conditions down at the beaches.

112pm, it’s turned partly to mostly cloudy, with cloudy skies here in upper Kula early this afternoon, although it’s dry…with light winds. The temperature here at my Kula weather tower at the time of this writing is 71.4 degrees.

355pm, looking down into the central valley here on Maui, I see thick haze in our skies.

653pm, the afternoon clouds are starting to clear back, and it seems a bit less hazy as we head into the early evening hours. The high temperature here at my Kula weather tower was 74.5 degrees, while the temperature has dropped to a cooler 65.6 degrees at the time of this writing.

817pm, the clouds continue to clear, at least partially. This in turn is prompting the temperature to fall here in upper Kula. At the time of this writing, the temperature here at my place has slipped to 62 degrees, which should be dropping into the middle 50’s by early Tuesday morning.

 

Hawaii’s Broad Brush Weather Overview:  The low pressure system far north of the state will continue to drift slowly northward over the next few days, as high pressure builds back into the area. Expect moderate to locally breezy east to east-southeast winds over most islands through mid-week, though daytime sea breezes will occur over sheltered areas of each island.

Brief passing showers will favor mainly windward and mountain areas. A low pressure disturbance will move through the island chain from Tuesday night through Thursday morning, increasing windward and mountain showers locally.

Hawaii’s Weather Details:  Satellite imagery shows a band of middle and high clouds drifting east of the Big Island. Upper air balloon soundings show subsidence temperature inversion heights around 5,000 feet above sea level. At these low inversion heights the air mass remains fairly stable and tends to cap vertical cloud development due to strong subsidence. Decreasing clouds and showers will continue into Tuesday afternoon for most islands.

The low pressure system far north of the state will continue to drift slowly northward over the next few days. The high pressure ridge will build in north of the state, as the low drifts away from the island chain. Expect moderate to locally breezy east to east-southeast winds over most islands through Wednesday, wind directions will be modified by local scale daytime sea breezes over terrain sheltered areas of each island. Clouds will build over island interior sections with limited shower activity for most islands through Tuesday.

Tuesday night into Thursday morning…a low level easterly trough, shown on satellite imagery east of the Big Island , will move into the eastern islands of Maui and the Big Island late Tuesday. This trough will increase inversion heights and allow deeper clouds and higher shower trends to develop over the eastern slopes of both islands.

By Wednesday this trough moves into the central islands spreading increasing cloud and shower trends to windward and mountain areas statewide. By Thursday morning easterly trade winds spread to all islands, and the instability from this low level trough enhances trade wind showers over the windward and mountain slopes of the western islands.

Thursday afternoon through Sunday…moderate to locally breezy trade winds remain in the forecast with broad an upper level low pressure trough will keep passing showers mainly during the overnight to early morning hours, favoring windward and mountain areas.

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

Hawaii’s Marine Environment:  Moderate easterlies with localized fresh to strong winds through eastern island bays, channels and south of Big Island will be the general wind regime through the week. The Small Craft Advisory (SCA) for the notoriously windier waters surrounding Maui County and Big Island has been extended through early Tuesday morning, and expanded to include Maalaea Bay and Pailolo Channel.

Surf along south-facing shores will remain at or near advisory heights. Recent south shore buoy observations shows additional energy reaching southern shores. As the south swell fades, south shore surf is forecast to wane tonight through the middle of the week.

The weekend’s small northwest swell will subside, with resultant north shore surf falling to near flat from Tuesday into the weekend. East chop will remain steady, although there may be a slight mid to late week increase in wind wave action, as trades strengthen a bit over and upstream of the islands.

 

Hawaii: the Most Beautiful Beaches on All the Islands

 

 

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

>>> Tropical cyclone formation is not expected during the next 7 days…for the areas above

Northeastern Pacific: There are no active tropical cyclon

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:

Tropical Cyclone 24S (Ialy)…is located approximately 241 NM east-northwest of Dar Es Salaam, Tanzania

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:  How Airborne Dust Is Helping the Southern Ocean Soak Up Our Emissions

A new study reveals the extent to which airborne dust in the Southern Ocean is fueling plankton blooms that absorb our emissions.

In total, the world’s oceans take up around a third of our carbon emissions, and of that, the Southern Ocean absorbs the lion’s share. Most of that carbon dioxide simply dissolves into the water, but some is consumed by phytoplankton and buried at sea. When plankton die, they sink deep into the ocean, locking away carbon for decades or centuries.

Like us, phytoplankton need iron, and in the Southern Ocean they draw a good measure their iron from dust that arrives on westerly winds from Australia, Patagonia, and southern Africa. Until now, however, it wasn’t clear how much phytoplankton depend on this dust.

To find out, scientists deployed a fleet of floating robots to measure levels of nitrate, another key nutrient for phytoplankton, at more than 13,000 locations across the Southern Ocean. When the level of nitrate dropped, they inferred, it was because a plankton bloom had gobbled it up.

Read more at Yale Environment 360

Image: A phytoplankton bloom off the coast of Argentina.