The latest update to this website was at 903pm Saturday (HST)

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

1.85  Mount Waialeale, Kauai
0.91  Poamoho RG 1, Oahu
0.14  Puu Alii, Molokai
0.00  Lanai
0.51  West Wailuaiki, Maui
1.19  Honolii Stream, Big Island

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

24  Port Allen, Kauai – ESE
42  Oahu Forest NWR, Oahu – ESE 
35  Makapulapai, Molokai – ESE 
35  Lanai 1,  Lanai – NE
39  Na Kula, Maui – E 
39  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 deepening trough of low pressure west through northwest of the state…along with a cold front

 

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.

354pm, partly cloudy with a mix of clear and cloudy areas locally.  The air here in Maui County is very hazy!

825pm, the afternoon cumulus clouds are evaporating rather quickly, although there are a few wispy high cirrus clouds arriving from the west. The temperature has slipped down to 57.5 degrees here at my place, with the relative humidity 75%.

 

 

Hydrologic Outlook – National Weather Service Honolulu HI:

HEAVY RAIN AND FLASH FLOODING POSSIBLE FROM LATE MONDAY INTO NEXT WEEKEND…A large low pressure system developing northwest of the state, over the next couple of days, will pull a very moist southern air mass northward across the state. This will likely initiate periods of heavy rain and occasional thunderstorms that, will increase the probabilities of flooding over Kauai County late Monday into Monday night. The flooding threat will likely expand eastward and envelope the entire state from Tuesday into the later part of next week. The flooding potential may persist into next weekend or even into early the following week.

It is too early to forecast rain totals or the exact timing and location of the greatest flooding potential. Stay weather aware the next several days as this system develops and the details of the impacts from it come into better focus.

The next couple of days would be a good time to clear storm drains and culverts of debris, or anything else that can block the flow of water.

 

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 Saturday, March 7, 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 845pm Saturday: The high pressure ridge north of the islands will weaken through Monday, as a strong cut off low pressure system deepens near the dateline to our west. Wind directions will veer more southeasterly on Monday, then strengthening southerly winds from Tuesday onward. This next system is extremely strong for the Hawaii region and dangerous impacts are likely to develop statewide through much of next week.

A combination of flooding, strong and gusty southerly winds, thunderstorms, and Big Island summit level snow and ice will threaten Hawaii from Tuesday through next weekend. Island by island impacts will be driven by both large scale troughs, and smaller scale thunderstorm bands over the entire duration of this severe weather event.

Short Term Update…as 0f 845pm: Satellite imagery shows a strong low pressure system deepening near the International Dateline, drifting slowly towards the Hawaiian Islands. A significant band of thunderstorms continues to develop roughly 500 to 700 miles east to southeast of the low`s center. A band of high level clouds even farther away from the low, shows embedded thunderstorms already developing within 200 to 300 miles west of Kauai.

Closer to the Hawaiian Islands we see some unstable cumulus clouds moving in from the east, producing periods of showers along the eastern slopes of the Big Island and Maui. These showers will bring a brief increase in clouds and showers to all islands through the early morning hours.

Hawaii’s Weather Details…as of 4pm Saturday: Stable weather conditions as the islands remain under the subtle influence of weak surface ridging located just west of the state. The pressure gradient downstream of a large 1038 millibar high has been taunt enough to generate breezy trades in the 10 to 20 mph range, occasionally exceeding 25 mph in gusts through notoriously windy passages and valleys.

Today`s rain behavior was very light and spotty and confined to windward or interior upper terrain, where the 24 hour rain accumulation winner was unsurprisingly Mt. Waialeale on Kauai with 1.25 inches. Overnight conditions will be mainly clear leeward, partially to overcast windward, with the infrequent quick-hitting light trade shower.

Tomorrow will be very similar to today as it relates to wind, cloud coverage and rain chances. The only minor change will the slightly greater coverage of measurable primarily windward rain as the atmosphere moistens up. The pattern begins to undergo change Monday, especially from Oahu westward, as a developing upper trough and its associated features begin to evolve far west-northwest of the state.

Weather will undergo changes late Monday, as a deep upper level trough develops and deepens northwest of the islands. The trough will move east very slowl going into the middle of next week. This will initiate the next weather event that, because of its slow movement, will likely hang on for multiple days. The main threats will be periods of heavy rain that will create flash flooding, produce strong or severe thunderstorms and strong kona winds.

Passing disturbances rotating around the base of the trough and cooling mid to upper layers, will be the ingredients that will increase chances for organized convection through mid to late week. Falling surface pressures northwest of the state will create a pressure pattern that will support strengthening south to southeast statewide winds. This will pull up a plume of rich tropical moisture across the region. As the trough lifts slowly northeast, very high precipitable water values of over 1.7 inches over the western islands Tuesday, will expand east across the remainder of the state through Wednesday.

It looks very likely that we’ll see episodes of heavy rainfall with embedded thunderstorms. Broad south-southeast confluent flow running parallel with the upper terrain could support training and anchored convection. The potential for significant flooding remains alive through late in the week, if and when heavier rain persists over the same locals, similar to what occurred over the Koolau mountains a couple of weeks ago. Flooding impacts could become more pronounced over time as soils become saturated and stream / reservoir levels rise.

In addition to the flooding threat, thunderstorms could become strong, possibly severe, by the middle of next week. Another threat will be strong southerly winds atop ridge tops and along leeward slopes. Downslope winds Wednesday could become strong enough to throw light weight objects about, knock out power, cause minor structural damage, break off tree limbs and falling weakly rooted trees.

Please monitor subsequent forecasts through Monday, as details regarding the exact timing and location of the heaviest rain and strongest wind come into better focus.

 

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 429pm 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 495 NM west-northwest of Learmonth, Australia – Final Warning 

https://www.metoc.navy.mil/jtwc/products/26S_080000sair.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