The latest update to this website was at 830pm Monday (HST)

 

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

80 / 69  Lihue AP, Kauai
79 / 67   Molokai AP, Molokai
79 / 68  Kahului AP, Maui
82 / 70   Kona AP, Big Island
78 / 66   Hilo AP, Big Island

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

5.27  Mount Waialeale, Kauai
1.12  Manoa Lyon Arboretum, Oahu
0.49  Puu Alii, Molokai
0.02  Lanai City, Lanai
4.60  Puu Kukui, Maui
5.39  Honolii Stream, Big Island

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

18  Puu Opae, Kauai
38  Oahu Forest NWR, Oahu
29  Makapulpai, Molokai
30  Lanai 1, Lanai
45  Kealaloloa RG, Maui
33  Kawaihae Rd, 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


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

Low clouds being carried in on the strong trade winds

 

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

High clouds streaming by to the southeast

 

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

Localized showers…a few are heavy

 

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. I hope you have a good day wherever you happen to be spending it.

It’s mostly clear here in upper Kula early this morning, while my low temperature was 50 degrees.

Late afternoon, it’s been off and on wet along the windward sides, mostly on, and partly cloudy along the leeward slopes…with a few passing light showers.

Weather Wit of the day:  Air Pollution Emergency – When there’s nothing to fear but atmosphere itself

 

Hawaii’s Broad Brush Weather Overview:  A band of moisture associated with an old front will keep windward Big Island rather wet tonight, while improving conditions are expected on Maui. Elsewhere, typical trade wind showers will prevail. Fairly typical but windy trade wind weather is then expected Tuesday through Wednesday.

The trades will ease a bit and gradually shift more east-southeasterly Thursday and Friday, with showers favoring windward areas at night, and a few more showers possible over interior and leeward areas Friday afternoon. A hybrid trade wind pattern should then take hold over the weekend into early next week, with showers favoring windward areas at night and interior and leeward sections of the islands each afternoon.

Hawaii’s Weather Details:  Weather maps show a 1031 mb high centered around 800 miles north, while the remnants of an old front are moving through Maui and the Big Island. The gradient locally is producing breezy trade winds across the state. Visible satellite imagery shows partly to mostly cloudy conditions, with cloud coverage the highest in windward locales. Radar imagery shows scattered showers moving into windward slopes and coasts, with more widespread shower activity across parts of Maui and the Big Island.

High pressure north-northeast of the state will merge with a new building high to the north of the islands tonight, with this high then slowly settling southward Tuesday through Wednesday. Meanwhile, the remnants of an old front will sink southward through the islands, with inversion heights dropping quickly in its wake. This is expected to increase the trades, with windy conditions developing and continuing through Wednesday. A Wind Advisory will be active Tuesday into early Wednesday for the typically windier locations across Maui County and the Big Island.

The high will gradually weaken as it remains anchored northeast of the islands Thursday and Friday, while a storm system develops west of the state. Breezy trades will continue across the state Thursday, with an easing expected particularly over the western islands Friday, as the directions shifts more east-southeasterly. The storm system will shift closer to the islands over the weekend into early next week. The winds will shift more southeasterly in response, with land and sea breezes becoming more common over the western islands, while moderate trades persist over the eastern end of the state.

Meanwhile, a band of deeper moisture associated with and old front will push southward through the islands through the remainder of the day and tonight. The drier airmass appears to already be overspreading Oahu, and should move into Kauai. The old frontal remnants appear to hang up over the Big Island and to a lesser extent on Maui County through the afternoon, with conditions gradually improving this evening.

Behind the front we should get back into a more uniformly distributed trade wind regime with mostly windward showers along with the occasional leeward spillover through Thursday. A trough aloft appears to work northward across the islands Friday, which could bring an increase in windward showers and a few more leeward and interior showers in the afternoon.

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:  Strong surface high pressure centered far north of Hawaii will maintain a very tight pressure gradient between itself and lower equatorial pressure, resulting in an extended period of fresh to strong trade winds. The remnant moisture from a dissipated cold front will drift south over the state and bring gusty scattered showers to much of the local waters. Tuesday through early Thursday, expect strong- to near gale-force trade winds, with the strongest over the typically windier waters and channels surrounding Maui County and Big Island. The Small Craft Advisory for all Hawaiian waters has been extended through Wednesday morning for the strong winds and resulting rough seas.

The current moderate, medium period, north-northwest swell (340 degree) will steadily ease through Tuesday. A slightly larger, long-period north-northwest (330 degree) swell will arrive Tuesday night into Wednesday, with a reinforcing long-period northwest swell (310 degree) on its heels to close out the week.

Rough surf will continue along east facing shores through the week, in response to the persistent strong trade winds over and upstream of the islands. Surf will near High Surf Advisory criteria Tuesday through mid-week as trades peak in strength.

Surf along south-facing shores will remain small, aside from the possibility of some wrap from the easterly wind waves, making it into the more eastern-facing southern exposures.

 

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: 

North and South Indian Ocean:

Tropical Cyclone 24S (Ivone)…is located approximately 929 NM south-southeast of Diego Garcia

https://www.metoc.navy.mil/jtwc/products/sh2425.gif

Tropical Cyclone 25S (Jude)…is located approximately 59 NM southwest of Nacala, Mozambique – Final Warning

https://www.metoc.navy.mil/jtwc/products/sh2525.gif

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:  Scientists Discover Genes to Grow Bigger Tomatoes and Eggplants

Johns Hopkins scientists say the innovation could bring ‘new fruits, foods, and flavors’ to an expanded global agricultural marketplace.

Bigger, tastier tomatoes and eggplants could soon grace our dinner plates thanks to Johns Hopkins scientists who have discovered genes that control how large the fruits will grow.

The research—led by teams at Johns Hopkins University and Cold Spring Harbor Laboratory—could lead to the development of new varieties of heirloom tomatoes and eggplants, including those that help support agriculture in areas around the world where local varieties are currently too small for large-scale production.

Findings were published in the journal Nature.

Read more at Johns Hopkins University