The latest update to this website was at 326 pm Sunday (HST)

 

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

0.19  Mount Waialeale, Kauai
0.35  Poamoho RG 1, Oahu
0.21  Puu Alii, Molokai
0.05  Lanai City, Lanai
0.30  West Wailuaiki, Maui
1.46  Kealakekua, Big Island

 

The following numbers represent the strongest wind gusts (mph) as of Sunday afternoon:

23  Port Allen, Kauai
27  Oahu Forest NWR, Oahu
20  Molokai AP, Molokai
21  Lanai 1, Lanai 
36  Na Kula, Maui
35  Puu Mali, 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 far south…cold front northwest

 

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

 Variable clouds over the islands…higher clouds near the Big Island

 

 

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 

 

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

 

~~~ Hawaii Weather Narrative ~~~

 

Glenn’s Sunday comments:  I’m here in Corte Madera (Marin County, CA) at my friend Linda’s place

It’s partly to mostly cloudy with light misty drizzle…with a low temperature of 51 degrees.

Bob left this morning for his 8-hour drive back up to Bend, Oregon. I’m feeling some sadness as we spend the last 16 days paling around together up there on the Deschutes River, and on the north coast of CA at Sea Ranch.

Weather Wit of the day: This sign was seen at a Federal Loan Office in a flood disaster area – “LOANS MADE WHILE YOU WADE.”

Interesting web story – Mauka Showers…Our First Cold Front-Drought Buster?

>>> Highest Temperature Sunday, November 16, 2025 – 94 at Junction, Texas
>>> Lowest Temperature Sunday, November 16, 2025 – 14 near Hinckley, MN

 

Hawaii’s Broad Brush Weather Overview: Moderate easterly trade winds will focus showers across windward slopes through Monday, while a developing upper level low just southwest of the islands gradually pulls a swath of high clouds overhead. The upper level low will strengthen mid to late Tuesday into Wednesday and bring an increased threat of heavy showers and isolated thunderstorms on increasing trade winds, with flood potential increasing over the eastern end of the island chain.

Chances of heavy rainfall will diminish late Wednesday and Thursday, though breezy and somewhat wet trade wind weather is expected. Another round of unsettled weather is possible next weekend.

Hawaii’s Weather Details: An upper level trough bisecting the state will develop into an upper level low centered just southwest of the island chain tonight. The upper low will pull a shield of high clouds over the area from the south and also erode the mid level ridge overhead, leading to the elimination of the inversion, and a slight destabilization of the atmosphere. This could produce some enhancement of the showers in the trade wind flow, mainly within a diffuse band of moisture moving across the western half of the island chain tonight.

Trade winds will briefly diminish Monday night and early Tuesday as the atmosphere further destabilizes. Trades will ease as a cold front advances to within 200 miles northwest of Kauai and pushes the weakened subtropical ridge, generating the trades to far northeast of Hawaii. The upper level trough driving the front will begin to absorb the upper level low just southwest of the state. The resulting upper level trough will produce difluence aloft within a narrow jet stream over the islands.

The greatest forcing associated with this jet stream will likely be just south of the Big Island, where an area of deep tropical moisture will be drawn northward. At this time, GFS and ECMWF model guidance suggest that the deepest moisture and greatest threat of heavy rainfall will remain south of the islands through at least mid-day, with chances for rainfall along southeast and windward Big Island increasing during the afternoon. Meanwhile, closer to the colder temperatures aloft along the upper level trough axis, an isolated thunderstorm or heavy shower cannot be ruled out across other islands. In addition, a shield of thick high clouds will cover the entire island chain.

The highest chances for heavy rainfall favors late Tuesday afternoon or early evening into Wednesday, though differences in model guidance are producing some uncertainty. The wetter GFS is maintaining a more persistent upper level trough with somewhat strong difluence aloft, while the latest run of the ECMWF depicts a weaker upper level trough being absorbed more quickly into the large upper trough to the west. Both models suggest that the front will dissipate just north of the islands and that trade winds will ramp up as strong surface high pressure passes far to the north.

Under this breezy, moist, and unstable trade wind flow, windward areas will be the focus for heavy rainfall, while leeward communities experience briefly heavy and potentially frequent passing showers. The greatest threat for flooding continues to point toward the eastern end of the island chain, mainly on Big Island, where difluence aloft may produce precipitable water values in excess of 2 inches. With trade winds blowing and thick high clouds limiting convection, the greatest flood potential appears to be over windward and southeast Big Island, where the GFS Ensemble 90th percentile solution shows 24 hour rainfall totals of around 5 inches.

Given the model differences regarding potential rainfall totals, confidence is not high enough to issue a Flood Watch at this time. Along with the flood threat, the high summits of the Big Island could experience periods of heavy snow and strong winds, but the big question will be the snow level, which will be hovering close to summit elevation.

The threat for heavy rainfall will decrease during the day on Wednesday as high clouds diminish, but breezy and wet conditions are expected into Thursday. The heavy rainfall threat will drop as the upper level trough near Hawaii gets absorbed by the deeper upper level trough to the west, greatly diminishing difluence aloft. The strong surface high passing to the north will maintain breezy trade winds, and even though precipitable water will be decreasing, the GFS and ECMWF keep abundant moisture around the islands, suggesting a rather wet pattern.

A brief period of stable and drier trade wind conditions is expected on Friday, followed by another round of potentially active weather next weekend.

Fire weather:  Moderate trade winds and seasonably higher humidity will maintain conditions well short of critical fire weather thresholds through Monday, as the inversion gradually weakens. Wet conditions are expected Tuesday into Thursday, with heavy rainfall possible over recent burn areas on the Big Island.

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: Trade wind speeds will decrease and veer from a more E to SE direction from Monday to Tuesday, as the high pressure ridge north of the Hawaiian Islands weakens and drifts E in response to a surface trough over the islands, and an approaching cold front far NW of the state. Additionally, the cold front may advance into the offshore waters by Tuesday afternoon, bringing locally strong ENE winds behind it before the front diminishes over the NW coastal waters Wednesday.

Expect Small Craft Advisories to be issued for most of the Hawaiian coastal waters from Wednesday into Friday due to a combination of strengthening winds and rising seas. Isolated thunderstorms are possible over the Hawaiian waters through much of this week.

Expect multiple overlapping NW swells this week. This will keep surf heights boosted along exposed N and W facing shores. The challenge with this pattern will be in tracking the multiple swell energies from similar directions and similar periods. Wave height model guidance has trended towards combining these different swells for the Monday through Friday time period.

Surf along N facing shores remains small as a small medium period NW (310-320 degree) swell slowly declines into Monday. The next moderate, medium to long period NNW (320-340 degree) swell will then arrive late Tuesday, peaking Wednesday near High Surf Advisory thresholds along exposed N and W facing shores, then declining through the end of the week.

Another overlapping small, medium period NNE (010-020 degree) swell arrives from Thursday into Friday. Then another small, long period NW (320-330 degree) swell arrives in Hawaiian waters by Thursday night, peaking late Friday, then slowly diminishing into next weekend.

Surf along E facing shores will decline into Monday, due to the weakening of the local and upstream trade winds. As the high pressure ridge moves east later this week, the combination of a long easterly fetch of 15 to 20 kt winds upstream of the islands from Tuesday through Thursday, along with strengthening local winds along the cold front, will produce moderate and choppy surf along E shores. For S shores, periods of tiny background south swell energy will linger.



World-wide Tropical Cyclone Activity

 

Atlantic Ocean:  There are no active tropical cyclones

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

Caribbean Sea:  There are no active tropical cyclones

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:  There are no active tropical cyclones

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

North Central Pacific: There are no active tropical cyclones

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

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

 

Northwest Pacific Ocean:  There are no active tropical cyclones

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:  UK Prawn Farms Could Spark Sustainable Seafood Revolution

Farming king prawns indoors in tanks on UK farmland could create a thriving, sustainable seafood industry, researchers say.

King prawns are one of the “big five” sea foods eaten in the UK – but the vast majority of this tropical species is imported, and often comes from environmentally damaging sources.

Researchers from the UK Sustainable King Prawn Project (UKSKPP) say there is a “better way”: cost-effective and environmentally sound king prawn aquaculture (seafood farming) – creating new employment opportunities and making production of the freshest and tastiest seafood truly sustainable.

Read More: University of Exeter

King prawn demonstrator in Scotland.