The latest update to this website was at 520am Saturday (HST)

 

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

0.34  Mount Waialeale, Kauai
0.32  Lyon, Oahu
0.19  Honolimaloo, Molokai
0.00  Lanai
0.07  Waikamoi Treeline, Maui
0.10  Pahoa, Big Island

>>> There are lots of locations that measure rainfall and winds, here’s a map of all areas for your reference (the map is clickable to zoom in closer)

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

10  Port Allen, Kauai
17  Oahu Forest NWR, Oahu
14  Anapuka, Molokai
12  Lanai 1, Lanai
17  Na Kula, Maui
21  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/GOES18/ABI/SECTOR/tpw/13/GOES18-TPW-13-900x540.gif

 Tropical Cyclone Kiko still far east-southeast…although generally coming this way

 

https://www.weather.gov/images/hfo/satellite/Hawaii_IR_loop.gif

Low clouds locally…with developed cumulus clouds far south 

 

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

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

Showers locally 

 

Please open this link to see details on any current Watches, Warnings and Advisories noted above

 

~~~ Hawaii Weather Narrative ~~~

 

Glenn’s Saturday comments:  I’m home here in upper Kula, Maui, Hawaii.

It’s mostly clear here in Maui County early this morning. The low temperature at my place was 53 degrees…with a relative humidity of 79%.

Weather Wit of the day:  Umbrella – A device which is always used up

Cool blog: Mauka Showers…talking about hurricane Kiko.

>>> Highest Temperature Friday, September 5 , 2025 – 111 at Death Valley, California
>>> Lowest Temperature Saturday, September 6, 2025 – 23 near Redfeather Lakes, Colorado

 

Tropical Cyclone Kiko: This hurricane is now in our central Pacific….some 1005 miles east-southeast of Hawaii.  The current status has Kiko with sustained winds of 130 mph. This puts Kiko at the Category 4 level. Changes in its path/intensity could occur between now and when it gets closer to the state.

Tropical Cyclone Kiko is moving west-northwest at around 12 mph. Category Four Hurricane Kiko has passed into the Central Pacific basin at midnight. Kiko is forecast to weaken as it approaches the Hawaiian Islands from the southeast and be a tropical storm as it passes in the vicinity of the far northern offshore waters of Hawaii Tuesday into Wednesday. A dry slot of air leading the cyclone will pass across the state Monday and briefly lower early day rain chances. Then rain chances will steadily increase from the east late Monday through Wednesday or Thursday.

Light trades will gradually back more northerly as TC Kiko passes off to the north through the middle of next week. Kiko is also dragging in a very high precipitable water air mass of around 2 inches; near max values by early September standards. So, with a continued northerly track of Kiko, forecast confidence is highest that island weather during Kiko’s passage will transition to cloudier and more humid under very weak winds and occasional showers. The greatest rainfall will likely occur along more eastern and northern higher terrain exposures.

As of this morning, Kiko’s main impacts will be marine-based. However, with Kiko’s anticipated arrival in the local offshore waters still a good three to four days out, there will be inherent error in track and intensity. Thus, interests in Hawaii and the surrounding waters should monitor Kiko’s progression toward the state through early next week.

You can follow along if you scroll down this page to the Tropical Cyclone section, and look for more detailed information on Kiko.

cone graphic

 

Hawaii’s Broad Brush Weather Overview:  Generally dry and stable conditions will prevail today. Cloudier, warm and muggy island weather is forecast early next week under weakened trades. There will be a slight increase in rain shower frequency and coverage Sunday into Monday in response to higher moisture and a vicinity upper low located north of the state.

Tropical Cyclone Kiko will be approaching Hawaii from the southeast. Kiko’s current forecast track is north of the islands across the far northern offshore waters. While confidence is low concerning Kiko’s impacts to Hawaii early to mid next week, there is a possibility of higher statewide rainfall.

Hawaii’s Weather Details: Weak ridging currently resides over the region, as an upper low approximately 700 miles north of Oahu slowly advances south and weakens the ridge. The associated trough north of the state has also disrupted the downstream pressure gradient, from a high centered 1,700 miles north-northeast of Big Island. The result will be lighter overall trade winds that will allow more wind-sheltered local breezes to become more dominant.

Sea breezes interacting with the background trade wind flow will produce thicker afternoon cloudiness and initiate light showers in such areas as Big Island’s Kona and Kau regions and the leeward West Maui mountains. Subsidence from the mid-level ridging, along with a very dry and stable air mass above the 7,000 foot trade inversion, will be the limiting factors for any measurable rain across the majority of the state through tonight.

An area of deeper, more moist-rich air embedded within light upstream trades, with the weak instability of the trough deepening and moving over the western half of the island chain, will provide enough umph to generate more statewide shower activity from Sunday into early Monday. Higher rain amounts will be confined to north and east-facing exposures and in higher elevations.

Fire weather:  Humidities will briefly fall into the upper 30’s to middle 40’s once again this afternoon under dry and warm conditions. Winds will remain well below critical fire weather thresholds with light breezes forecast this weekend. Drier air will filter across the state Monday and briefly lower humidities, but weak winds will remain below critical fire weather thresholds. Showers may increase in coverage and intensity over many windward exposures early to mid next week, as a result of the approach and passage of TC Kiko north of the state.

Here’s a near real-time Wind Profile of the Pacific Ocean – along with a Closer View of the islands / Vog map animation / 8-Day Precipitation model

https://www.weather.gov/images/hfo/graphics/npac.gif 

 

Hawaii’s Marine Environment:  A weak trough will drop north of the state into Sunday, and cause trade winds to ease into the gentle to moderate range with localized sea breezes. As this feature slowly drifts westward on Monday, moderate trade winds will be allowed to briefly return.

Hurricane Kiko, ESE of Hilo, continues to track west-northwest in the Eastern Pacific. The latest forecast from the National Hurricane Center has Kiko entering our offshore waters late Monday as a strong tropical storm or hurricane. The tropical cyclone may then skirt our coastal waters, north of the Big Island or Maui County on Tuesday.

Surf along east facing shores will steadily rise late Sunday through early next week, as swell energy from Tropical Cyclone Kiko arrives. The surf may approach High Surf Advisory Criteria as early as Monday, and possibly breach High Surf Warning levels Monday night into Tuesday during its peak. However, surf heights will be highly depended on the track and intensity of Kiko as it nears the state.

A moderate long period south-southwest swell will gradually fill in and peak on Sunday, helping to build surf above the summer average. As this swell declines on Monday, another reinforcing swell out of the south-southwest is expected on Tuesday. This should help maintain surf near or slightly above the summer average throughout the first half of next week. Multiple small pules of northwest swell energy will generate small surf along north facing beaches through next week.

Peak monthly high tides, combined with water levels running higher than predicted, may lead to minor flooding along the shoreline and in low lying coastal areas. A Coastal Flood Statement remains in effect through Sunday afternoon.

 



World-wide Tropical Cyclone Activity

 

Atlantic Ocean: There are no active tropical cyclone

Tropical Atlantic

Invest 91L

 >>>  A tropical wave over the central tropical Atlantic is producing a small area of disorganized showers and thunderstorms. Environmental conditions are only marginally conducive for development, and the chances of this system becoming a tropical depression are decreasing. The wave is expected to move generally westward at 10 to 15 mph, and will likely be near the Lesser Antilles by the middle part of next week. Interests there should monitor its progress.

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

 

Caribbean Sea:  There are no active tropical cyclone

Tropical cyclone formation is not expected during the next 7-days.

Gulf of America:  There are no active tropical cyclones

Tropical cyclone formation is not expected during the next 7-days.

 

Northeastern Pacific:

Central East Pacific:

>>> An area of low pressure has formed a few hundred miles south of the southwestern coast of Mexico. Development, if any, of this system should be slow to occur while it moves generally westward around 10 to 15 mph over the open waters of the eastern Pacific.

* Formation chance through 48 hours…low…near 0 percent
* Formation chance through 7 days…low…20 percent

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

 

North Central Pacific:  

Tropical Cyclone Kiko…is located about 1005 east-southeast of Hilo, Hawaii

KIKO ENTERS THE CENTRAL PACIFIC BASIN AS A CATEGORY 4 HURRICANE

According to the NHC advisory number 26

Kiko is moving toward the west-northwest near 12 mph and this general motion is expected to continue for the next few days. Maximum sustained winds are near 130 mph with higher gusts. Kiko is a category 4 hurricane on the Saffir-Simpson Hurricane Wind Scale. Gradual weakening is expected over the next several days. Hurricane-force winds extend outward up to 25 miles from the center and tropical-storm-force winds extend outward up to 80 miles.

cone graphic

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

 

Northwest Pacific Ocean: 

Tropical Cyclone 22W…is located approximately 278 NM south-southeast of Hong Kong

https://www.metoc.navy.mil/jtwc/products/wp2225.gif

Southwest Pacific Ocean:  There are no active tropical cyclones

North and South Indian Ocean:  There are no active tropical cyclones

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:  Climate Change is Making Rollercoaster Harvests the New Normal

From corn chips to tofu, climate change is messing with the menu.

A new global study led by the University of British Columbia shows that hotter and drier conditions are making food production more unstable, with crop yields fluctuating more sharply from year to year.

For some, it may mean pricier burgers; for others, it can bring financial strain and hunger.

Published today in Science Advances, the study is the first to show at a global scale how climate change is affecting yield swings of three of the world’s most important food crops: corn, soybean and sorghum.

Read More at: University of British Columbia