The latest update to this website was at 133pm Saturday (HST)

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

1.17  Mount Waialeale, Kauai
0.92  Poamoho RG 1, Oahu
0.14  Puu Alii, Molokai
0.00  Lanai
0.51  Puu Kukui, Maui
1.22  Honolii Stream, Big Island

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

25  Waimea Heights, Kauai – SE
33  Oahu Forest NWR, Oahu – SE 
42  Makapulapai, Molokai – E 
31  Lanai 1,  Lanai – NE
43  Na Kula, Maui – ENE
43  South Point, Big Island – NE 

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

A cold front northwest

 

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

Variable low clouds…high and middle level clouds moving into the state from the west

 

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 the current Watches, Warnings and Advisories noted above

 

~~~ Hawaii Weather Narrative ~~~

 

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

It’s clear to partly cloudy early this morning here at my location, with a low temperature of 51 degrees, and the relative humidity is 76%.

121pm, I played pickleball in Haiku this morning, and shopped at Mana Foods in Paia afterwards. There are some low clouds around, along with some beautiful high cirrus clouds early this afternoon as well. The winds are locally strong and gusty along the windward sides, while they are definitely much lighter here in upper Kula.

 

 

Hydrologic Outlook – National Weather Service Honolulu HI…

HEAVY RAIN AND FLASH FLOODING POSSIBLE FROM LATE MONDAY INTO NEXT WEEKEND…A strong low pressure system will develop northwest of the state over the weekend, bringing deep moisture into the area. The potential for heavy rains, thunderstorms, and flash flooding will develop over Kauai County late Monday into Monday night, spreading eastward to the entire state Tuesday and Wednesday. This potential could easily last into next weekend, and perhaps even beyond.

It is too soon to forecast rainfall totals or exact timing and locations of maximum flash flooding potential. Stay weather aware over the weekend as this system comes into better focus and details become available.

Now would be a good time to clean out storms drains and culverts, or anything else that can block the flow of water.

 

>>> Interesting weather web blog: Mauka Showers – Hawaii’s Wet Season, Part 2 – Additional Trends

 

Monthly Precipitation Summary
Month: February 2026 

Headline: Very wet month for windward areas statewide with two main heavy rain/flooding events; leeward areas predominantly left out of the action.

February began under a weak subtropical ridge, producing light winds and stable conditions with limited cloud and shower development statewide. Strong and gusty southwest winds developed on the 2nd ahead of a fast-moving cold front, producing localized downslope wind gusts and scattered power outages in areas north and east of the mountains. The front moved quickly down the island chain overnight, bringing a brief period of locally heavy showers with totals generally one-half inch or less, locally up to one inch on Oahu. Cooler, drier air and decreasing winds followed as the front dissipated near the Big Island. Dry weather and light winds persisted through the 5th.

Another approaching front shifted winds out of the south on the 6th and brought enhanced pre-frontal showers to portions of the smaller islands. The front moved through the western islands on the 7th and stalled near Maui through the 10th. Abundant moisture pooled along the boundary and, combined with instability from an upper-level disturbance, produced a prolonged period of heavy rainfall. Persistent north to northeast winds focused rainfall along windward and upslope areas, where three-day totals commonly exceeded 4 inches. Swaths of 8 to 12+ inches occurred across windward portions of the Big Island, Maui, Molokai, and Oahu, with localized totals near 25 to 30 inches. Most of the rain fell on the 8th and 9th. Despite the large totals, rainfall rates were generally modest—around 1 to 2 inches per hour—limiting flash flooding impacts. Saturated soils did contribute to landslides near Waipio Valley and Laupahoehoe. Strong northeast winds behind the front also produced scattered power outages and downed trees in wind-prone valleys and leeward mountain areas.

Breezy to locally windy trade winds prevailed from the 11th through the 19th with periodic windward and mountain showers. The wettest period occurred from the 14th through the 16th, when north and east slopes of Maui and the Big Island received roughly 0.75 to 1.5 inches of rain per day, with isolated higher amounts in favored terrain. Oahu and Kauai received lighter totals, mainly on the 15th.

A vigorous upper-level trough approached the island chain on the 20th, producing periods of heavy rain from Kauai to Maui that evening with rainfall rates generally between one-half and one inch per hour. Rising water levels along the Hanalei River briefly flooded portions of Kihio Highway near the bridge in Hanalei after midnight on the 21st, forcing a temporary closure.

As the trough moved closer to the state later on the 21st, increasing instability and very cold temperatures aloft combined with strong orographic lift along the Koolau Mountains of Oahu to produce an intense, nearly stationary band of heavy rain and thunderstorms along the upper windward slopes and ridge line of the mountain range. The heaviest rainfall occurred between Maunawili and Hauula during the mid-morning and persisted for several hours. Rainfall rates commonly reached 2 to 4 inches per hour in that area, with brief peaks exceeding 6 inches per hour. Some notable rainfall rates across Oahu include: Luluku with 17.07 inches in 6 hours (13.01 inches in 3 hours), USGS Moanalua RG with 13.44 inches in 6 hours (12.49 inches in 3 hours), and USGS Poamoho RG1 with 13.09 inches in 6 hours (8.10 inches in 3 hours). For some perspective, these 6-hour rainfall rates have a less than 1% chance of occurring in any given year. Those three sites also had the top three 24-hour totals for the entire state on the 21st (Luluku – 25.10 inches, Moanalua RG – 17.51 inches, and Poamoho RG1 – 16.32 inches). These extreme rainfall rates produced rapid stream rises and overwhelmed drainage systems.

Significant flash flooding occurred along windward Oahu, particularly around Kaneohe, Waihole, and Waikane, where overflowing streams flooded roads, homes, and vehicles. Several roads closed, including the Likelike Highway off-ramp from the Kaneohe-bound H-3 Freeway. Floodwaters also affected parts of the North Shore near Waialua and Haleiwa after runoff from the Koolau Mountains filled Wahiawa Reservoir and overflowed its spillway, flooding nearby agricultural areas and portions of the Otake Camp community. Most homes there avoided major damage due to elevated construction.

Windward Molokai and Maui also received heavy rainfall during the event, though totals were lower than on Oahu. These areas generally recorded 2 to 7 inches, with the highest totals near Hana on Maui and in the Halawa area of Molokai. Landslides were reported along the Hana Highway, temporarily closing the road while crews removed debris.

The upper trough lingered through the 23rd. Increasing trade winds interacting with lingering instability produced additional moderate to heavy showers over windward slopes of Maui County and the Big Island, where totals were in the neighborhood of 1 to 3 inches. Cooler, drier trade winds returned from the 24th through the 26th. Winds gradually weakened and shifted east-southeasterly during the final days of the month, allowing temperatures to warm slightly while shower activity decreased.

 

Weather Wit of the day:  Weather Forecasting – A kind of work some people do, which no one notices until they do it wrong

 

>>> Highest Temperature Friday, March 6, 2026 – 97 degrees near La Puerta, TX
>>> Lowest Temperature Saturday, March 7, 2026 – minus 21 degree at Peter Sinks, Utah

 

Hawaii’s Broad Brush Weather Overview…as of 10am Saturday: Moderate to breezy east-southeast winds and mainly stable conditions are expected this weekend. A significant pattern change will begin early next week, as a deep low pressure system evolving northwest of the islands turns winds from the south. This southerly flow will allow deep tropical moisture to move northward and overrun the state.

This scenario will increase the chances for heavy rainfall, thunderstorms and strong winds next week. These impacts have a higher probability of starting over the western waters and from Oahu westward late Monday. This activity is forecast to advance east and impact the entire island chain through the middle and latter part of next week. The slow-moving nature of this system to the west signals that this active weather pattern may persist into next weekend.

Short Term Update…as of 914am Saturday: A surface ridge axis just west of the island chain is what is ultimately maintaining a relatively pleasant start to this first Saturday of March. Scattered cumulus clouds moving in on predominant east flow, and piling up along windward upslope mountains, as convective blow off cirrus from a line of thunderstorms a few hundred miles west of Niihau. Generally partly cloudy conditions with late morning upper 70’s warming a few more degrees into the lower 80s along more wind protected, leeward coastal areas…remaining in the upper 70’s in windward communities.

Today`s rain behavior will typically be confined to windward, east or southeast-facing spots, and within higher terrain where more overcast and rain will keep temperatures in the 60’s between 3-5,000 feet. A mainly clear leeward, partially to overcast windward Saturday night with occasional quick-hitting trade showers going into Sunday sunrise. Sunday will be very similar to today concerning temperature, sky and rain chances. The pattern begins to undergo some major change later Monday, especially from Oahu westward, as the next upper low and its associated features begin to evolve far northwest of the state.

Hawaii’s Weather Details…as of 341am Saturday: A notable shift in the large-scale pattern is expected to unfold across the Hawaiian Islands during the upcoming week. The current dry and fairly stable regime, characterized by moderate to locally breezy east-southeast trade flow, will hold in place through this weekend. Conditions will then begin to change late Monday into Monday night, as a deep, upper trough develops northwest of the islands, bringing a multi-faceted weather event to the state that could include heavy rainfall with flash flooding potential, strong to severe thunderstorms, and strong kona winds.

At the surface, model guidance is fairly consistent in depicting a broad cyclonic circulation developing northwest of the state by early next week. Central pressures near 985 to 990 millibars are possible, with this feature remaining well northwest of the islands. The resulting pressure pattern will support strengthening south to southeast winds across the state, allowing a plume of deep tropical moisture to surge northward into our area. Precipitable water values are expected to climb into the 1.7 to 2 inch range by Tuesday over the western islands, then spread across the remainder of the state by mid-week.

The evolving thermodynamic and kinematic environment will favor episodes of heavy rainfall with embedded thunderstorms. Combined with broad confluent south-southeast flow and island terrain effects, this pattern could support training and anchored convection, particularly along favored terrain, such as the Koolau mountains on Oahu. This raises the potential for significant flooding concerns if heavier rainfall bands persist over the same areas. In addition to the heavy rainfall threat, some thunderstorms could become strong, and occasionally severe, by the middle of next week with locally damaging winds possible.

Impacts may begin to develop across the western islands as early as Monday night, as the leading edge of the moisture plume reaches the state. The risk for heavy rain and thunderstorms will likely expand eastward across the remainder of the island chain Tuesday into Wednesday, as deeper moisture and stronger forcing for ascent overspread the region.

While details regarding the exact timing and location of the heaviest rainfall remain uncertain, confidence continues to increase that a prolonged period of unsettled and potentially impactful weather will affect the islands next week. Flooding impacts could become more pronounced over time as soils become saturated and stream levels and reservoirs become elevated. Residents and interests across the state should continue to monitor forecasts through the weekend, as this system comes into better focus and details regarding the timing and location of impacts become clearer.

 

Here’s a near real-time Wind Profile of the Pacific Ocean – Zoom Earth – 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…as of 341am Saturday: Strong high pressure far to the northeast of the state will maintain fresh to strong trade winds through the weekend, with the strongest winds over the typically windy areas around Maui County and the Big Island. A Small Craft Advisory is now in effect from the windward Oahu waters and Kaiwi Channel eastward through 6 pm Sunday, with the exception of Maalaea Bay. This SCA may need to be extended for portions of the marine area through Sunday night. A front approaching from the west will ease the trades and shift them southeasterly on Monday, with the winds then becoming southerly and increasing to fresh to strong levels Tuesday and Wednesday.

Surf along east facing shores will remain elevated and choppy through the weekend, trend downward on Monday, then lower below normal levels Tuesday through late next week.

A series of west-northwest swells will keep some small surf in place along north and west facing shores during the next 7 days, but surf will remain well below advisory levels. A small to moderate sized north swell is possible around Thursday and Friday of next week.

Surf along south-facing shores will remain small through early next week, with the exception of areas exposed to trade wind swell wrap. Rough and choppy conditions appear to develop Tuesday and continue through late next week as southerly winds increase in advance of a front. A series of small long period south swells will also move through Monday through late next week.

 

The Best of Each Hawaiian Island: Top Hawaii Highlights



World-wide Tropical Cyclone Activity

 

Atlantic Ocean:  There are no active tropical cyclones

Caribbean Sea:  There are no active tropical cyclones

Gulf of America:  There are no active tropical cyclones

 

Northeastern Pacific:  There are no active tropical cyclones

North Central Pacific: There are no active tropical cyclones

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 Indian Ocean:  There are no active tropical cyclones

 

South Indian Ocean:  

Tropical Cyclone 26S…located at approximately 407 NM northwest of Learmonth, Australia  

https://www.metoc.navy.mil/jtwc/products/26S_071200sair.jpg

 

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:  Canadian Drinking Water at Risk Long After Wildfires, UBC Study Warns

Canada’s drinking water can remain at risk long after wildfires burn out, according to a UBC-led global review that found water-quality impacts often emerge months or years later—not just immediately after a fire.

Researchers analyzed 23 studies across 28 watersheds worldwide, comparing pre- and post-fire levels of sediment, nutrients, metals, organic carbon, ions and wildfire-fighting chemicals. Across climates, contamination often intensified over time, particularly when storms or snowmelt washed stored ash and debris into rivers.

The findings carry particular weight for Canada, where wildfire activity has intensified. In 2023, over 15 million hectares burned, more than twice the previous national record.

Read more at: University of British Columbia