The latest update to this website was at 907pm Friday (HST)

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

1.22  Moloaa Dairy, Kauai
0.73  Poamoho RG 1, Oahu
0.06  Puu Alii, Molokai
0.00  Lanai
0.41  Puu Kukui, Maui
0.41  Kaiholena, Big Island

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

16  Port Allen, Kauai – E
23  Oahu Forest NWR, Oahu – ENE 
27  Makapulapai, Molokai – ESE
28  Lanai 1,  Lanai – ESE
27  Kapalua, Maui – SE
29  South Point, Big Island – E 

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 Aloha Friday 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%.

1152am, sunny to partly sunny here on Maui, along with quite a bit of haze.

355pm, partly to mostly cloudy here in Maui County, with very hazy skies.

606pm, cloudy with drizzle here at my Kula weather tower, along with a temperature of 64 degrees.

906pm, the clouds are clearing now, and the temperature has finally begun to drop some, with my outdoor thermometer showing 55.9 degrees, 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 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 O?ahu 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:  Two snowmen were talking and one said to the other, “Do you believe in life after thaw?”

 

>>> Highest Temperature Friday, March 6, 2026 – 97 degrees near La Puerta, TX
>>> Lowest Temperature Friday, March 6, 2026 – minus 14 degree near Estcourt Station, Maine

 

Hawaii’s Broad Brush Weather Overview…as of 301pm Friday:  Trade wind weather will continue through the weekend, with brief passing showers favoring windward and mountain areas of all islands. Winds begin to shift out of the south from Sunday night into Monday, as a strong cutoff low pressure system approaches from the northwest. Strong southerly winds will draw deep tropical moisture northward, increasing the threat for widespread heavy rainfall and severe weather through much of next week.

Hawaii’s Weather Details…as of 3pm Friday: Satellite shows increasing high clouds moving in from the west, along with the typical trade-wind cumulus at lower levels. Radar shows scattered to numerous light showers, mainly in windward and mountain areas. General low level wind flow was from the east-southeast, with terrain altering that flow in most leeward areas. Showers are expected to continue, and even become slightly more numerous, tonight.

We still see a significant weather system reaching the western end of the main islands Monday into Monday night, then extending eastward to all islands by Wednesday or Thursday. The potential for heavy rain, flooding, thunderstorms, and strong winds will last into next weekend for at least part of the state.

Models are in fairly good agreement, especially considering the time frame involved, on the overall evolution of this event. A closed upper level low to our northwest will strengthen, and then remain in roughly the same area all next week. Even though this feature is over 1000 miles away, it will be the dominant factor in our weather next week. The low level circulation that forms beneath this upper feature will switch our winds to southerly. This will draw moisture northward, increasing our precipitable moisture values from current levels of just over one inch, to just over 2 inches.

Cold air aloft will help destabilize the atmosphere, and we will likely see thunderstorms over parts of the area from Tuesday into next weekend. Several shortwave troughs are likely to rotate around the closed upper low and then move toward and then over the state next week. As they do, winds will increase at all levels, increasing moisture and providing shear that aids the formation of strong showers and thunderstorms. At this time, the most significant of these troughs is forecast to move through the state Wednesday or Thursday. However, “lesser” troughs, impossible to exactly time, will still have the potential to bring heavy rain and gusty winds along with the accompanying showers and thunderstorms.

Timing: the western end of the state may be impacted as early as late Monday into Monday night, with the threat spreading east over the entire state Tuesday into Wednesday. The threat will then linger into next weekend, due to the blocking pattern referenced above. The pattern isn’t expected to change much. Models show a significant flow of moisture over the state the entire time, and it may even extend beyond next weekend.

There are many details that will only become discernible when we get closer in time (exact timing of troughs, for example), so please stay up to date as this event approaches. When the stronger parts of the system move through, the potential for flash flooding is appearing more likely with each new model run. This is an unusually long-lasting system, and impacts are likely to stack-up over time, as the ground becomes saturated by repeated rains.

 

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 9am Friday: Fresh to strong east to southeast winds associated with a surface ridge extending southwest into the region will remain in place through the weekend. Expect the strongest winds and roughest conditions within the channels, along the Hamakua Coast of the Big Island, windward waters, and south of the Big Island. The surface ridge will begin to weaken early next week as broad low pressure develops nearby to the west. A Small Craft Advisory is in effect of the waters around Maui County and the Big Island through Saturday and potentially may need to be extended as this pattern will cause winds to veer out of the south to south- southeast, potentially remaining in the fresh to strong range next week.

Surf along east-facing shores will remain near seasonal average into early next week due to a large upstream fetch of fresh to strong breezes extending across the northeast Pacific. A downward trend is expected next week as this pattern weakens and local winds veer southerly.

Surf along north- and west-facing shores will remain relatively small through the period, with only a few west-northwest pulses expected over the weekend. A gradual increase is expected through the weekend, with Sunday potentially the largest day, reaching around head-high levels. A long-period westerly swell associated with a slow-moving storm-force low tracking eastward toward the Date Line from the far northwest Pacific is expected early next week. However, the westerly winds associated with this system near the islands are forecast to weaken by the weekend, which will limit the amount of swell generated toward the state. Additionally, Kauai will block some of this energy from reaching other coasts across the island chain.

Surf along south-facing shores exposed to southeast trade-wind seas will gradually increase through the weekend. Conditions could become rough early next week as winds veer southerly and strengthen. A long-period south-southwest swell associated with a recent system passing through our swell window near New Zealand is expected to arrive Tuesday and persist through midweek.

 

Beaches | Big Island of Hawaii | Paradise In Hawaii



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 372 NM north-northwest of Learmonth, Australia  

https://www.metoc.navy.mil/jtwc/products/26S_070000sair.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:  New Way to Trap Toxic PFAS in Water

Contamination of ground, surface and drinking water by perfluoroalkyl and polyfluoroalkyl substances (PFAS) affects millions of people worldwide.

A promising new method developed by Flinders University scientists paves the way to help remove the most difficult-to-capture variants of these persistent pollutants from water.

The research team, led by Flinders ARC Research Fellow Dr Witold Bloch, has discovered adsorbents that effectively capture PFAS, including short-chain forms that are especially difficult to remove using existing technologies.

Read more at: Flanders University