The latest update to this website was at 6pm, Thursday (HST)

 

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

1.43  N Wailua Ditch, Kauai
0.30  Kalaa, Oahu
0.01  Puu Alii, Molokai
0.12  Lanai 1, Lanai
0.08  Mahinahina, Maui
2.45  Pali 2, Big Island

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

12  Nawiliwili, Kauai
22  Kaneohe, Oahu
17  Molokai AP, Molokai
12  Lanai 1, Lanai
13  Kealia Pond, Maui
16  Kohala Ranch, 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

Thunderstorms south…cold fronts northwest 

 

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

High and middle level clouds to the south…well developed cumulus clouds near Kauai  

 

 

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

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

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

Showers locally…some quite heavy 

 

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

 

~~~ Hawaii Weather Narrative ~~~

 

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

It’s mostly clear although with some clouds locally here in Maui County early this morning. The low temperature at my place was 53 degrees…with a relative humidity of 80%. It’s still voggy here in Maui County at least.

1242pm, it’s cloudy with a few minor sprinkles here in upper Kula, with a temperature of 71.9 degrees, and the RH is 72%

145pm, cloudy with light showers here in upper Kula, RH 79%

 

Weather Wit of the day: I think it’s amazing. We now have coffee without caffeine, beer without alcohol and milk without fat. What’s next-a-weekend without rain?

 

>>> Highest Temperature Thursday, October 9, 2025 – 102 near Death Valley, CA
>>> Lowest Temperature Thursday, October 9, 2025 – 18 near Bynum, MT

 

Hawaii’s Broad Brush Weather Overview: A surface trough will bring showers to Kauai through tonight. Light wind flow will allow a land and sea breezes pattern to dominate, with possible light trades building this weekend. Winds shift out of the east-southeast next week, with a wet and unstable pattern setting up over the islands by mid-week.

Hawaii’s Weather Details: A low pressure system north of Hawaii will bring a period of relatively light wind flow across the state into next week. A trough originating from the low is located over Kauai, characterized as a band of showery clouds that has been stationary across the Garden Isle. The rest of the state is in a diurnal land and sea breeze pattern bringing clear nights and mornings and cloudy afternoons and evenings across island interiors.

Through Friday, the land and sea breeze pattern will persist until the surface trough slides to the north. The low to the north is forecast to weaken but remain a disturbance in this area. This feature will continue to block much of the trade wind flow, but guidance suggests that gentle to moderate trade winds nosing in south of this system this weekend.

An upper low will dig southward and position itself just west of the state by the middle of next week. The upper low will induce a surface trough that will veer and strengthen winds out of the east-southeast beginning Monday night and continuing over the next several days, after that putting Hawaii is a relatively unstable and wet weather pattern. East-southeast winds will focus clouds and scattered showers over windward and southeastern sides of the islands.

Fire weather:  Weak winds and continued isolated to scattered showers will help mitigate fire weather concerns for the next several days. Inversion heights across the state will range from as low as 5,000 to as high as 9,000 feet.

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 surface trough near Kauai and Oahu will continue to drift northwest through the end of the week. Light to gentle southeast to south flow will also give way to localized land and sea breezes over nearshore waters. Gentle to locally fresh easterly trade winds will build in from the east through the day on Friday and hold through the weekend. Early next week, a potential surface trough develops north of the waters and may disrupt the trade winds for another round of light to gentle southeast winds.

A mix of a small, medium period northwest swell and a small, short period north-northeast swell will maintain small surf for north facing shores through Saturday. Another small, medium period northwest swell will fill in late Saturday, followed by a moderate, medium to long period northwest swell that is expected to fill in Sunday and peak on Monday near High Surf Advisory criteria. Recent model guidance has exhibited a low bias, compared with observed nearshore buoy readings running higher than forecast guidance. As a result, surf heights may come in larger then currently indicated by the model output.

Surf along south facing shores will remain small through the weekend, with a series of small, medium to long period south and southwest swells. East facing shores will remain tiny to small through Friday except for select shorelines exposed to the current small north-northeast swell. A slight increase is expected this weekend as easterly trade winds return. In addition, a small, medium to long period easterly swell from Tropical Cyclone Priscilla in the East Pacific is forecast to arrive late Saturday into Sunday.

Peak high tides associated with the lunar cycle will lead to minor coastal flooding along shorelines and low lying coastal areas through early next week. Coastal flooding will coincide with the daily peak tide each morning. A Coastal Flood Statement remains in effect for all coastal areas through Friday, but will likely need to be extended into early next week.

 



World-wide Tropical Cyclone Activity

 

Atlantic Ocean:  

Tropical Cyclone Jerry…is located about 175 miles east-southeast of the northern Leeward Islands

JERRY EXPECTED TO BE NEAR THE NORTHERN LEEWARD ISLANDS THIS EVENING AND TONIGHT…TROPICAL STORM WARNING ISSUED FOR PORTIONS OF THE NORTHERN LEEWARD ISLANDS

According to the NHC advisory number 10

Jerry is moving toward the west-northwest near 18 mph. A turn toward the northwest is expected by the evening, followed by a slightly slower northward motion on Friday and Saturday. On the forecast track, the center of Jerry is expected to pass near the northern Leeward Islands this evening and tonight. Maximum sustained winds remain near 65 mph with higher gusts. Little change in strength is expected through tomorrow, but slow strengthening is possible over the weekend. Tropical-storm-force winds extend outward up to 175 miles, mainly east of the center. The estimated minimum central pressure is 1001 mb (29.56 inches).

HAZARDS AFFECTING LAND

WIND: Tropical storm conditions are expected in the tropical storm warning area and are possible in the watch area tonight and Friday morning.

RAINFALL: Through Friday, 4 to 6 inches of rain are expected across the island of Barbuda. Elsewhere across the Leeward and Virgin Islands, 2 to 4 inches of rain are expected. This rainfall brings a risk of flash flooding, especially in urban areas and in steep terrain. For portions of Puerto Rico, moisture associated with Jerry combined with local orographic effects may result in up to 2 to 4 inches of rain, with isolated 6 inches possible.

SURF: Swells generated by Jerry are affecting the Leeward Islands, Windward Islands, the Virgin Islands and Puerto Rico. These swells are expected to spread toward the rest of the Greater Antilles over the next couple of days, are likely to cause life-threatening surf and rip current conditions.

cone graphic

 

North Atlantic:

Tropical Cyclone Karen…is located about 545 miles north-northwest of the Azores

SUBTROPICAL STORM KAREN FORMS FAR UP IN THE NORTH ATLANTIC

According to the NHC advisory number 1 

The storm is moving toward the northeast near 9 mph. This motion with some gradual acceleration is forecast over the next day or two. Maximum sustained winds are near 45 mph with higher gusts. Little change in strength is forecast during the next day or so, and the system should open up into a trough by this weekend. Winds of 40 mph extend outward up to 60 miles from the center. The estimated minimum central pressure is 998 mb (29.47 inches).

 

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 cyclone

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

 

Northeastern Pacific: 

Tropical Cyclone 16E (Priscilla)…is located about 170 miles west of Cabo San Lazaro, Mexico

PRISCILLA STRENGTHENS SLIGHTLY…SIGNIFICANT RISK OF FLASH FLOODING ACROSS THE SOUTHWEST UNITED STATES THROUGH THE WEEKEND

According to the NHC advisory number 22 

Priscilla is moving toward the north-northwest near 8 mph. A turn toward the north with a decrease in forward speed is expected later tonight through Friday. A turn toward the northeast is expected Friday night. On the forecast track, the center of Priscilla is expected to remain offshore of the coast of Baja California Sur, and dissipate by Saturday. Maximum sustained winds are near 50 mph with higher gusts. Weakening is forecast, with Priscilla expected to become a post-tropical remnant low on Friday and dissipate by Saturday. Tropical-storm-force winds extend outward up to 105 miles from the center. The estimated minimum central pressure is 995 mb (29.39 inches).

cone graphic

 

Tropical Cyclone 17E (Raymond) is located about 640 miles southeast of the southern tip of Baja California

POORLY ORGANIZED RAYMOND MOVING WEST-NORTHWESTWARD PARALLEL TO THE SOUTHWESTERN COAST OF MEXICO…RISK OF FLASH FLOODING IN AREAS OF HIGHER TERRAIN THROUGH SATURDAY

According to the NHC advisory number 3

Raymond is moving toward the west-northwest near 15 mph, and this general motion is expected to continue through early Friday. A turn toward the northwest is expected Friday evening, followed by a northward turn by early Sunday. On the forecast track, the center of the cyclone is expected to move parallel to the southwestern coast of Mexico through Friday and then approach southern Baja California Sur over the weekend. Maximum sustained winds are near 45 mph with higher gusts. Some strengthening is forecast through Friday, followed by a weakening trend over the weekend. Tropical-storm-force winds extend outward up to 60 miles (95 km) from the center. The estimated minimum central pressure is 1002 mb (29.59 inches).

cone graphic

 

North Central Pacific: There are no active tropical cyclone

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

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

 

Northwest Pacific Ocean: 

Tropical Cyclone 28W (Halong)…is located approximately 508 NM east of Yokosuka, Japan – Final Warning

https://www.metoc.navy.mil/jtwc/products/wp2825.gif

Tropical Cyclone 29W (Nakri)…is located approximately 263 NM east of Kadena AB

https://www.metoc.navy.mil/jtwc/products/wp2925.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:  Tree-ring Data Sheds Light on Past and Present Summer Climate Extremes

A new study led by scientists at the University of Arizona used historical tree-ring data to study a key driver for widespread, extreme summer weather events: locked jet stream wave patterns that are often preceded by winter La Niña conditions in the Pacific.

The results from the paper, published in the journal AGU Advances, are poised to inform early warning systems that could better predict extreme weather events that present risks to agricultural crops, food supply, infrastructure and vulnerable populations.

“These types of patterns are particularly impactful, especially when they occur in major crop-growing regions, because they set the stage for what are called ‘compound climate events,'” said Ellie Broadman, formerly a postdoctoral researcher of paleoclimatology at the U of A Laboratory of Tree-Ring Research and currently a research scientist at the Arizona Geological Survey. “If you have heat waves and droughts happening in a bunch of different places all in the same summer, that has significant implications for food systems, agriculture, trade and for public health, as compared to one small, isolated drought.”

The jet stream is a high-altitude, meandering river of fast-moving air that forms wave-like curves in the atmosphere. When these waves reach a configuration with five peaks and five troughs circling the entire Northern Hemisphere, scientists call it a wavenumber-5 pattern, or wave5 pattern. When the wave5 pattern becomes “locked,” or stops moving, it traps heat domes and dry spells over specific regions for days at a time.

Read More: University of Arizona