Air Temperatures – The following high temperatures (F) were recorded across the state of Hawaii Friday…along with the low temperatures Friday:
86 – 75 Lihue, Kauai
86 – 72 Honolulu, Oahu
84 – 73 Molokai
87 – 75 Kahului AP, Maui
86 – 72 Kailua Kona
82 – 70 Hilo AP, Hawaii
Here are the latest 24-hour precipitation totals (inches) for each of the islands as of Friday evening:
1.18 Kilohana, Kauai
0.90 Manoa Lyon Arboretum, Oahu
0.14 Molokai
0.00 Lanai
0.00 Kahoolawe
0.66 Puu Kukui, Maui
0.77 Hilo AP, Big Island
The following numbers represent the strongest wind gusts (mph) as of Friday evening:
32 Port Allen, Kauai
35 Oahu Forest NWR, Oahu
31 Molokai
31 Lanai
42 Kahoolawe
39 Maalaea Bay, Maui
42 Pali 2, Big Island
Hawaii’s Mountains – Here’s a link to the live webcam on the summit of our tallest mountain Mauna Kea (nearly 13,800 feet high) on the Big Island of Hawaii. This webcam is 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.
Aloha Paragraphs
We see a cold front far north
Thunderstorms over the offshore waters south
Clear to partly cloudy…cirrus west
Showers locally – Looping image
Small Craft Advisory…windiest coasts and channels Maui County and the Big Island
~~~ Hawaii Weather Narrative ~~~
Broad Brush Overview: Gusty trade winds will continue into Saturday, with clouds and showers remaining focused over windward and mountain areas. Some brief showers will reach leeward sections of the smaller islands. The winds will decline through the weekend, becoming light and variable…with afternoon sea breezes Sunday. Kona winds ahead of a cold front will bring increased moisture with much wetter conditions for the first half of next week.
Details: As this rather vigourous cold front approaches Kauai Monday, the models are showing moisture pooling over Oahu, Maui County, and the Big Island. This tropical moisture as it impacts island terrain, will likely produce heavy rain, isolated thunderstorms, and the potential of flash flooding for the eastern islands through mid-week.
Kona winds (south through southwest) will increase Monday as well, with some potential for gusty winds accelerating down the terrain into windward areas of Kauai and Oahu. Current model runs are showing southwest winds just below the damaging wind threshold, although this forecast could change with time.
The front will push over Kauai Monday night bringing moderate rains with it. The front will then slowly move eastward, likely passing east of Oahu Tuesday, and then east of the Big Island Wednesday night. North winds behind the front will bring cool and dry conditions to Kauai Tuesday, and possibly Oahu Wednesday…while moist and humid conditions will remain in place over Maui County and the Big Island.
Looking further Ahead: Model guidance diverges for the second half of the week, ranging between a stabilizing upper ridge over the state, in contrast to a destabilizing upper low just north of the islands. The current long range forecast maintains moderate trade winds with windward showers…time will tell. The main thing here seems to be that we’re leaving our placid summer weather behind, and pushing deeper into our autumn season.
Here’s a wind profile of the Pacific Ocean – Closer view of the islands / Here’s the vog forecast animation / Here’s the latest weather map
Marine environment details: The current strong to gale force trade winds will be diminishing steadily over the weekend. Light and variable winds are expected by Sunday, as the high to the north weakens and moves east, and a low develops in the same area. This low will send a cold front towards the islands early next week, and the forecast now expects the front to move across Kauai and Oahu late Monday into Tuesday, with associated changeable winds and weather.
With high pressure currently fueling strong trade winds, a Gale Warning remains in effect today for the Pailolo and Alenuihaha Channels, while a Small Craft Advisory (SCA) remains posted elsewhere. The diminishing winds will likely allow the Gale Warning to expire tonight, and the SCA will likely be lowered for all areas by early Saturday. Although wind waves will be lowering, building north-northwest and south swells Sunday and Monday are expected to keep combined seas elevated…although below the SCA criteria.
A moderate north-northwest swell has been building and will peak later today and then lower Saturday. A larger northwest swell is expected Sunday and Monday, likely resulting in advisory level surf along north and possibly west facing shores. This swell will begin to diminish Tuesday, although another larger northwest swell is expected late Tuesday into Wednesday.
Additionally, advisory level surf along south facing shores is possible Sunday and Monday, generated by a distant low in the South Pacific. A small west swell is possible next week, generated by large and slow-moving Typhoon Lan in the Western Pacific.
World-wide Tropical Cyclone activity
>>> Here’s the latest PDC Weather Wall Presentation, covering strengthening Super Typhoon Lan, and Tropical Depression 27W in the northwest Pacific Ocean
>>> Here’s the latest PDC Weather Wall Presentation, covering the Gulf of Mexico, the Caribbean, and the Atlantic Ocean
>>> Atlantic Ocean: No active tropical cyclones
>>> Caribbean Sea: No active tropical cyclones
>>> Gulf of Mexico: No active tropical cyclones
Here’s a satellite image of the Caribbean Sea…and the Gulf of Mexico
Here’s the link to the National Hurricane Center (NHC)
>>> Eastern Pacific: No active tropical cyclones
Here’s a wide satellite image that covers the entire area between Mexico, out through the central Pacific…to the International Dateline.
Here’s the link to the National Hurricane Center (NHC)
>>> Central Pacific: No active tropical cyclones
Here’s a link to the Central Pacific Hurricane Center (CPHC)
>>> Northwest Pacific Ocean
Super Typhoon 25W (Lan) remains active, here’s a graphical track map, and a satellite image…and what the computer models are showing
Tropical Depression 27W is now active, here’s a graphical track map…and what the computer models are showing
>>> North and South Indian Oceans / Arabian Sea: No active tropical cyclones
Here’s a link to the Joint Typhoon Warning Center (JTWC)
Interesting: Regreening the Planet Could Account for One-Third of Climate Mitigation – Planting trees, restoring peatlands, and better land management could provide 37 percent of the greenhouse gas mitigation needed between now and 2030 to keep global warming to 2 degrees Celsius, according to a new study published in the Proceedings for the National Academy of Sciences.
The activities, known as natural climate solutions, could prevent up to 11.3 billion tons of carbon dioxide from reaching the atmosphere every year, the study reported. That would be the same as if nations stopped burning oil completely, The Nature Conservancy, which helped lead the study, said.
To achieve these greenhouse gas reductions, nations would need to engage in reforestation efforts, peatland and coastal wetland restoration, and the conversion of former agricultural land to forests, as well as protect existing forests and wetlands from future development.
These actions “also offer water filtration, flood buffering, soil health, biodiversity, and enhanced climate resilience,” the scientists wrote. “Regreening the planet through conservation, restoration, and improved land management is a necessary step for our transition to a carbon neutral global economy and a stable climate.”
Gerry Says:
Aloha Glenn,
Can you be more specific about which issue of PNAS this was published in? Tracking it down. Gerry
~~~ Hi Gerry, that article was on my website many days ago, however, I’m thinking this might be the link you are looking for?
http://www.pnas.org/content/114/24/6148.extract?sid=a9ab3a14-4c61-43dd-ac6c-ae8f12b4890c
Aloha, Glenn