The latest update to this website was at 908m Saturday morning (HST)

 

Here are the highest temperatures Friday afternoon…and the lowest Saturday morning:

87 / 78  Lihue AP, Kauai
90 / 77  Honolulu AP, Oahu – Record high Friday 92
87 / 76  Molokai AP, Molokai
90 / 75  Kahului AP, Maui – Record high Friday 93
88 / 76  Kona AP, Big Island
82 / 71  Hilo AP, Big Island

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

1.92  Mount Waialeale, Kauai
0.18  Heeia, Oahu
0.03  Puu Alii, Molokai
0.00  Lanai
0.28  West Wailuaiki, Maui
1.10  Honolii Stream, Big Island

The following numbers represent the strongest wind gusts (mph) as of Saturday morning:

21  Nawiliwili, Kauai
36  Oahu Forest NWR, Oahu
27  Makapulapai, Molokai
36  Lanai 1, Lanai
24  Kahului Harbor, Maui
33  Waikoloa, 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 

Thunderstorms well south of Hawaii
(click for larger version)


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

Variable clouds across the state

 

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

Most of the low clouds are along the windward sides

 

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)

 

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 Saturday comments: 

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

557am HST, it’s mostly clear here in Maui County, with some clouds stretched along the windward coasts and slopes, and around the West Maui Mountains. My low temperature here in upper Kula was 54 degrees…with calm winds.

 

Hawaii’s Broad Brush Weather Overview:  Locally breezy trade winds will continue into next week, carrying passing showers that will favor windward areas. Deeper moisture will move over the islands Sunday night and Monday, likely bringing increased showers, especially over the Big Island, where some heavy showers may develop.

Hawaii’s Weather Details:  A lingering low-level trough north-northwest of the islands will move west and finally dissipate this weekend, allowing consolidating high pressure to generate breezy and locally gusty trade winds into next week.

The returning trade flow has been gradually moistening the last couple of days, and radar shows scattered showers moving ashore over windward areas, with a few small heavy rain showers. This gradual moistening is likely to continue through this weekend, leading to passing showers over windward areas occasionally bringing a few sprinkles to leeward areas through Sunday, especially during the night and mornings.

Model guidance indicates that a trough currently well southeast of the Big Island will move west and bring increased low- and mid-level moisture over the islands Sunday night through Monday. Although low-level winds may only veer slightly to the east-southeast, the flow will become southerly as the trough passes, leading to moisture extending as high as 12-15,ooo feet, mainly over the Big Island.

Thus, the forecast includes mention of heavy showers over the Big Island Sunday night into Monday. While the moisture increase over the smaller islands is not expected to be as deep, an increase in windward showers is likely, with higher humidity levels making it feel muggy statewide.

After the trough moves west of the islands Tuesday and Wednesday, a fairly typical trade wind weather pattern is expected. As we approach the end of the dry season however, we anticipate increased interruptions to the trade wind flow, as the north Pacific storm track begins to get started.

Though confidence is low, guidance has been trending toward a solution that would lead to decreasing and veering winds around the end of next week, with trade winds increasing again in about 7-8 days.

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 trades continue into next week, as broad high pressure develops over the northeast Pacific. A Small Craft Advisory (SCA) remains posted for the typical windier waters of Maui County and the Big Island through Sunday night. The SCA may eventually require an extension through the first half of next week, as the high remains nearly stationary.

Choppy surf along east facing shores will hold through the first half of next week, due to persistent trades locally and upstream. A small south-southwest swell will peak, generating small surf then hold into Sunday, before declining Monday.

Background southeast and south swells will then keep tiny surf along south facing shores through much of next week. North shore surf will remain nearly flat through much of next week. Models show a gale low developing and tracking along the Aleutian Islands early next week, that may send a small northwest swell locally toward the end of next week.

Water levels at local tide gauges are running over half a foot above predicted and are expected to reach above the 1 foot Mean Higher High Water threshold,due to above normal water levels coinciding with the spring tides. This may result in nuisance coastal flooding around the peak high tide each afternoon through Monday. A Coastal Flood Statement has been issued to highlight this threat.

 

                           a sandy beach next to the ocean

 

 

World-wide Tropical Cyclone Activity

 

Atlantic Ocean: 

Tropical Cyclone 07L (Gordon)…which is located about 1195 miles west-northwest of the Cabo Verde Islands

GORDON CONTINUES WESTWARD

According to the NHC Advisory number 13

Gordon is moving toward the west near 9 mph. A slightly slower westward or west-southwestward motion is forecast during the next several days. Maximum sustained winds are near 45 mph with higher gusts. Gordon is forecast to continue to weaken and become a depression on Sunday. Gradual re-strengthening is possible by the middle part of next week. Tropical-storm-force winds extend outward up to 140 miles from the center.

>>> Offshore the Southeastern U.S.:

A non-tropical area of low pressure is expected to form this weekend along a frontal boundary a few hundred miles off the southeastern U.S. coastline. The system could gradually acquire subtropical or tropical characteristics thereafter over the warm waters of the Gulf Stream, and a subtropical or tropical depression or storm could form early next week while the system moves generally northwestward toward the coast.

* Formation chance through 48 hours…low…30 percent
* Formation chance through 7 days…medium…50 percent

Caribbean Sea:  There are no active tropical cyclone

Gulf of Mexico: There are no active tropical cyclone

Northeastern Pacific: 

Tropical Cyclone 09E (Ileana)…is located about 85 miles east-northeast of La Paz, Mexico

ILEANA CONTINUES NORTHWARD OVER THE SOUTHERN GULF OF CALIFORNIA…TROPICAL STORM CONDITIONS OCCURRING ALONG PORTIONS OF THE COAST OF MEXICO

According to the NHC Advisory number 8A

Ileana is moving toward the north near 7 mph, and this general motion is expected to continue today. A slower motion toward the north-northwest and northwest is expected tonight and on Sunday. On the forecast track, the center of Ileana will move near or over the coasts of northern Sinaloa and southern Sonora later today, and then move over the Gulf of California roughly parallel to the coast on Sunday. Maximum sustained winds are near 40 mph with higher gusts. Weakening is forecast to begin later this afternoon or evening, and Ileana is likely to degenerate into a remnant low tonight. The remnant low is expected to dissipate by early Monday. Tropical-storm-force winds extend outward up to 60 miles from the center. The Mexican Navy station at Topolobampo recently reported sustained winds of 40 mph and a wind gust of 48 mph.

cone graphic

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

North Central Pacific:  There are no active tropical cyclone

Here’s the link to the Central Pacific Hurricane Center (CPHC)

Northwest Pacific Ocean: 

Tropical cyclone 14W (Bebinca), is located approximately 126 NM northeast of Kadena AB, Okinawa

https://www.metoc.navy.mil/jtwc/products/wp1424.gif

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:  U.S. Sweltered Through Its 4th-Hottest Summer on Record

A very warm August wrapped up an extremely hot summer across the U.S., with many cities breaking all-time heat records.

The first eight months of 2024 also ranked as the second-warmest year-to-date, according to NOAA’s National Centers for Environmental Information.

Climate by the Numbers

August 2024

The average temperature for August across the contiguous U.S. was 74.0 degrees F — 1.9 degrees above average — tying with August 1998 as the 15th-warmest August in the 130-year record. Florida had its second-warmest August on record, while Texas and New Mexico both saw their third-warmest August on record.

The average precipitation for the contiguous U.S. in August was 2.46 inches (0.16 of an inch below average), ranking in the driest third of the climate record. Precipitation was below average across much of the South, with Alabama and Mississippi seeing their driest August on record, and Tennessee seeing its second-driest August. In contrast, New York saw its fourth-wettest August on record.

Read more at NOAA