The latest update to this website was at 948pm Sunday (HST)

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

2.32  Mount Waialeale, Kauai
0.58  Poamoho RG 1, Oahu
0.06  Puu Alii, Molokai
0.00  Lanai
0.49  West Wailuaiki, Maui
1.23  Waiakea Uka, Big Island

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

23  Moloaa Dairy, Kauai – SE
30  Oahu Forest NWR, Oahu – ESE 
31  Makapulapai, Molokai – E
29  Lanai 1,  Lanai – NE
38  Na Kula, Maui – ESE 
35  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 deepening trough of low pressure northwest of the state…along with a cold front

 

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

Variable low clouds…increasing 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 Sunday 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 chilly low temperature of 47.5 degrees, and the relative humidity is 84%.

1240pm, variable clouds here in Maui County, ranging from quite sunny to mostly cloudy depending upon the area. The haze level improved overnight into earlier this morning, although is increasing again this afternoon.

403pm, partly cloudy with some cloudy areas…and it’s hazy.

950pm, clear to partly cloudy here on Maui, with the temperature having dropped to 55.7 degrees.

 

Hydrologic Outlook as of 432pm Sunday – National Weather Service Honolulu HI:

POWERFUL KONA STORM EXPECTED TO BRING SIGNIFICANT FLOODING IMPACTS TO THE STATE THIS WEEK

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 initiate periods of heavy rain
and thunderstorms, along with the likelihood of flooding, especially
from early Wednesday onward across the state. While the flooding
threat will likely begin over Kauai County and Oahu late Tuesday,
the flooding threat will begin to amplify and spread eastward across
the state early Wednesday as a strong short-wave trough swings
through.

With latest guidance showing an even more significant band of
moisture moving in Friday into the weekend and lingering uncertainty
in general, it is still too early to forecast specific rainfall
totals. However, confidence is growing for considerable flooding
impacts, especially over leeward areas.

Stay weather aware the next several days as this system develops and
the details of the impacts become more clear. 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.

NWS Weather Prediction Center as of Sunday: 

Prolonged and Potentially Significant Flash Flood Threat Developing This Week

A major weather change is on the horizon, as the prevailing dry and stable east-southeast trade flow is replaced by an exceptionally moist and unstable Kona wind pattern. This system will be slow-moving, again leading to higher than normal confidence for early March…in a multi-day heavy rain event for Hawaii.

This system will tap rich tropical moisture northward across the islands. Precipitable moisture is expected to range generally between 1.8-2.0 inches Tuesday through Thursday. However, a more impressive deep-layer moisture plume is anticipated Friday through the weekend, when precipitable moisture spikes to between 2.0-2.3″ across the entire State.

Certainly all of the ingredients will be in place for potentially significant flash flooding by mid-late week and through the weekend, especially as soils become saturated and stream/reservoir levels rise across all islands. Next weekend will be of particular concern, particularly over the western and central Islands. This will be several days into this multi-day event, with already saturated soils and high stream levels, when the  low-level southwesterly kona wind flow and moisture flux will be greatest per the model guidance.

 

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 Sunday, March 8, 2026 – 94 degrees Laguna Beach, CA
>>> Lowest Temperature Sunday, March 8, 2026 – 6 degrees at Gothic, CO

 

Hawaii’s Broad Brush Weather Overview…as of 921pm Sunday:  A powerful Kona storm is expected to impact the state this week into next weekend, bringing numerous hazards across the islands. A combination of flash flooding, damaging winds, and strong thunderstorms, some potentially severe, will threaten Hawaii from Tuesday through at least Saturday.

The risk for flash flooding could begin as early as Tuesday over Kauai and Oahu as deep tropical moisture spreads into the western end of the state. This threat will expand eastward across the state by the latter half of the week, with the likelihood for severe thunderstorms increasing late this week and into the weekend.

Hawaii’s Weather Details…as of 921pm Sunday: A significant transition in the large-scale weather pattern is expected to unfold across the Hawaiian Islands over next couple of days, and continuing through the upcoming weekend. The current dry and relatively stable regime, characterized by a moderate east-southeast wind flow, will persist through Monday. Conditions will begin to deteriorate Monday night into Tuesday as a deep upper-level trough amplifies northwest of the islands.

Models remain in strong agreement regarding the evolution of this system. A powerful jet streak with core winds of 100 to 140 knots is forecast to dig southward along the western flank of the trough. As this occurs, the trough will be expanding toward the island chain through the week.

At the surface, model guidance depicts a broad area of low pressure consolidating northwest of the islands. Central pressures could fall to near 990 millibars while remaining well northwest of the state. The resulting pressure pattern will shift winds across the islands out of a southerly direction, drawing a plume of deep tropical moisture northward across the region.

Precipitable water values are expected to increase into the 1.5 to 2.0 inch range beginning Tuesday across the western islands, then spread eastward across the remainder of the state through mid-week. This pattern will then persist through next weekend, with moisture values potentially rising into the 2.0 to 2.3 inch range statewide later this week.

The combination of strong upper-level forcing for ascent, deep tropical moisture, and persistent southerly flow will create a favorable environment for periods of heavy rainfall with embedded thunderstorms. Repeated rounds of convection may occur as smaller disturbances rotate through the broader upper trough, increasing the potential for training rainfall bands along terrain-favored areas.

Flooding concerns are expected to increase statewide as the week progresses, particularly where the heavier rainfall persists over the same areas for multiple days. By late week and next weekend, soils will already be saturated, increasing the likelihood that additional rainfall will produce rapid runoff and dangerous flooding conditions.

In addition to the rainfall threat, strengthening south to southwest kona winds may develop during the latter portion of the week and upcoming weekend, as the pressure gradient tightens between the developing low to the northwest, and high pressure to the east. If this materializes, strong kona winds and localized downslope wind events will be likely.

While thunderstorms are certainly possible earlier in the event, the environment will become increasingly favorable for severe storms later in the week and into the weekend. While uncertainty remains regarding the exact timing and location of the heaviest rainfall, confidence continues to increase that the islands will experience a prolonged period of unsettled and potentially impactful weather this week. Residents and interests across the state should continue to monitor forecasts, as 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 921pm Sunday: Strong high pressure far northeast of the state will maintain fresh to locally strong trade winds tonight, mainly over the eastern half of the state. The Small Craft Advisory (SCA) has been scaled back to include just the central and eastern waters through tonight. As winds slowly decrease, the SCA will likely be trimmed back to just the windier waters and channels around Maui County and the Big Island through Monday afternoon.

A front approaching from the west will begin to ease the trades further and shift them southeasterly on Monday, with the winds becoming southerly and increasing to fresh to locally strong speeds Tuesday through late this week. Heavy rain, thunderstorms, and rough seas are expected to accompany this storm system for the rest of this week and into the weekend.

Surf along east facing shores will gradually trend downward on Monday, then fall below normal levels Tuesday through late this week. A series of small long period west-northwest swells will keep some small surf in place along north and west facing shores during the forecast period. A small medium period north swell is possible late this week.

Surf along south-facing shores will remain small, with the exception of areas exposed to trade wind swell wrap. Rough and choppy conditions will develop Tuesday and continue through late 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 this week.

 

No photo description available.



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:  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:  Hunting Pressure is Shrinking Safe Space for Mandrills in Equatorial Guinea

Researchers from the University of Bristol Veterinary School, in collaboration with Bristol Zoological Society and partners in Equatorial Guinea, have uncovered alarming evidence that hunting pressure is dramatically reducing the safe habitat available to mandrills inside Monte Alén National Park, one of Central Africa’s most important rain forest strongholds.

Mandrills, the world’s largest and most colorful monkey species, are listed as Vulnerable by the IUCN and face growing threats from habitat loss and hunting. Despite their crucial role as seed dispersers and indicators of forest health, the species remain poorly studied across much of their range. This new study reveals that even protected areas are failing to offer full refuge.

Using 35 camera traps deployed by Bristol Zoological Society’s Equatorial Guinea Conservation Program, researchers monitored mandrill presence across the park and the impact of environmental and human influences on their movements.

Read More at: University of Bristol